./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test6-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02d5f6e1-3197-47c5-98bf-14129ba2e38e/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02d5f6e1-3197-47c5-98bf-14129ba2e38e/bin/uautomizer-verify-aQ6SnzHsRB/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02d5f6e1-3197-47c5-98bf-14129ba2e38e/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02d5f6e1-3197-47c5-98bf-14129ba2e38e/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test6-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02d5f6e1-3197-47c5-98bf-14129ba2e38e/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02d5f6e1-3197-47c5-98bf-14129ba2e38e/bin/uautomizer-verify-aQ6SnzHsRB --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 bb48026e7f870ff561a4cdd394c24cb5edb1d0f2fc8e8ef2bffe0b7b8438fda4 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 02:59:37,407 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 02:59:37,530 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02d5f6e1-3197-47c5-98bf-14129ba2e38e/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-28 02:59:37,540 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 02:59:37,540 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 02:59:37,577 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 02:59:37,579 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 02:59:37,580 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 02:59:37,580 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 02:59:37,581 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 02:59:37,582 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 02:59:37,582 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 02:59:37,583 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 02:59:37,583 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 02:59:37,584 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 02:59:37,585 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 02:59:37,585 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-28 02:59:37,585 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-28 02:59:37,585 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 02:59:37,585 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-28 02:59:37,585 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 02:59:37,586 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-28 02:59:37,586 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 02:59:37,586 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-28 02:59:37,587 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-28 02:59:37,587 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 02:59:37,587 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 02:59:37,587 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 02:59:37,587 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 02:59:37,587 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 02:59:37,588 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 02:59:37,588 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 02:59:37,588 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 02:59:37,588 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 02:59:37,589 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 02:59:37,589 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 02:59:37,589 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 02:59:37,589 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 02:59:37,590 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 02:59:37,590 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 02:59:37,590 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-28 02:59:37,590 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-28 02:59:37,590 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-28 02:59:37,590 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-28 02:59:37,591 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 02:59:37,591 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 02:59:37,591 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 02:59:37,591 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 02:59:37,591 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_02d5f6e1-3197-47c5-98bf-14129ba2e38e/bin/uautomizer-verify-aQ6SnzHsRB 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 -> bb48026e7f870ff561a4cdd394c24cb5edb1d0f2fc8e8ef2bffe0b7b8438fda4 [2024-11-28 02:59:37,914 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 02:59:37,924 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 02:59:37,927 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 02:59:37,928 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 02:59:37,928 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 02:59:37,930 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02d5f6e1-3197-47c5-98bf-14129ba2e38e/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test6-2.i [2024-11-28 02:59:41,200 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02d5f6e1-3197-47c5-98bf-14129ba2e38e/bin/uautomizer-verify-aQ6SnzHsRB/data/8e8fe9fce/e11e992096f7448498158edcb56c6fdd/FLAGaed83dc92 [2024-11-28 02:59:41,706 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 02:59:41,707 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02d5f6e1-3197-47c5-98bf-14129ba2e38e/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test6-2.i [2024-11-28 02:59:41,734 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02d5f6e1-3197-47c5-98bf-14129ba2e38e/bin/uautomizer-verify-aQ6SnzHsRB/data/8e8fe9fce/e11e992096f7448498158edcb56c6fdd/FLAGaed83dc92 [2024-11-28 02:59:41,785 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02d5f6e1-3197-47c5-98bf-14129ba2e38e/bin/uautomizer-verify-aQ6SnzHsRB/data/8e8fe9fce/e11e992096f7448498158edcb56c6fdd [2024-11-28 02:59:41,787 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 02:59:41,789 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 02:59:41,790 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 02:59:41,790 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 02:59:41,793 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 02:59:41,794 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:59:41" (1/1) ... [2024-11-28 02:59:41,795 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1e7666d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:59:41, skipping insertion in model container [2024-11-28 02:59:41,795 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:59:41" (1/1) ... [2024-11-28 02:59:41,852 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 02:59:42,505 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_02d5f6e1-3197-47c5-98bf-14129ba2e38e/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test6-2.i[44118,44131] [2024-11-28 02:59:42,521 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_02d5f6e1-3197-47c5-98bf-14129ba2e38e/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test6-2.i[44660,44673] [2024-11-28 02:59:42,669 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_02d5f6e1-3197-47c5-98bf-14129ba2e38e/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test6-2.i[56247,56260] [2024-11-28 02:59:42,670 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_02d5f6e1-3197-47c5-98bf-14129ba2e38e/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test6-2.i[56368,56381] [2024-11-28 02:59:42,687 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 02:59:42,699 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 02:59:42,747 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_02d5f6e1-3197-47c5-98bf-14129ba2e38e/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test6-2.i[44118,44131] [2024-11-28 02:59:42,750 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_02d5f6e1-3197-47c5-98bf-14129ba2e38e/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test6-2.i[44660,44673] [2024-11-28 02:59:42,814 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_02d5f6e1-3197-47c5-98bf-14129ba2e38e/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test6-2.i[56247,56260] [2024-11-28 02:59:42,818 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_02d5f6e1-3197-47c5-98bf-14129ba2e38e/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test6-2.i[56368,56381] [2024-11-28 02:59:42,842 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 02:59:42,899 INFO L204 MainTranslator]: Completed translation [2024-11-28 02:59:42,899 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:59:42 WrapperNode [2024-11-28 02:59:42,900 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 02:59:42,900 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 02:59:42,901 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 02:59:42,901 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 02:59:42,907 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:59:42" (1/1) ... [2024-11-28 02:59:42,934 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:59:42" (1/1) ... [2024-11-28 02:59:43,043 INFO L138 Inliner]: procedures = 282, calls = 349, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 1607 [2024-11-28 02:59:43,044 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 02:59:43,044 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 02:59:43,044 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 02:59:43,045 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 02:59:43,054 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:59:42" (1/1) ... [2024-11-28 02:59:43,055 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:59:42" (1/1) ... [2024-11-28 02:59:43,073 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:59:42" (1/1) ... [2024-11-28 02:59:43,185 INFO L175 MemorySlicer]: Split 318 memory accesses to 4 slices as follows [2, 12, 270, 34]. 85 percent of accesses are in the largest equivalence class. The 12 initializations are split as follows [2, 10, 0, 0]. The 62 writes are split as follows [0, 1, 57, 4]. [2024-11-28 02:59:43,186 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:59:42" (1/1) ... [2024-11-28 02:59:43,186 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:59:42" (1/1) ... [2024-11-28 02:59:43,225 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:59:42" (1/1) ... [2024-11-28 02:59:43,228 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:59:42" (1/1) ... [2024-11-28 02:59:43,249 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:59:42" (1/1) ... [2024-11-28 02:59:43,261 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:59:42" (1/1) ... [2024-11-28 02:59:43,269 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:59:42" (1/1) ... [2024-11-28 02:59:43,292 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 02:59:43,295 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 02:59:43,295 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 02:59:43,296 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 02:59:43,298 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:59:42" (1/1) ... [2024-11-28 02:59:43,304 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 02:59:43,319 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02d5f6e1-3197-47c5-98bf-14129ba2e38e/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:59:43,340 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02d5f6e1-3197-47c5-98bf-14129ba2e38e/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 02:59:43,344 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02d5f6e1-3197-47c5-98bf-14129ba2e38e/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 02:59:43,377 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-28 02:59:43,379 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-28 02:59:43,379 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-28 02:59:43,379 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-28 02:59:43,379 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-11-28 02:59:43,379 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-28 02:59:43,379 INFO L130 BoogieDeclarations]: Found specification of procedure alt_bzero [2024-11-28 02:59:43,380 INFO L138 BoogieDeclarations]: Found implementation of procedure alt_bzero [2024-11-28 02:59:43,380 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-28 02:59:43,380 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-28 02:59:43,381 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-28 02:59:43,381 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-28 02:59:43,382 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-28 02:59:43,382 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-28 02:59:43,382 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-28 02:59:43,383 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-28 02:59:43,383 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-28 02:59:43,383 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-28 02:59:43,383 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-28 02:59:43,383 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 02:59:43,383 INFO L130 BoogieDeclarations]: Found specification of procedure alt_malloc [2024-11-28 02:59:43,383 INFO L138 BoogieDeclarations]: Found implementation of procedure alt_malloc [2024-11-28 02:59:43,385 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-28 02:59:43,385 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-28 02:59:43,385 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-28 02:59:43,385 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-11-28 02:59:43,385 INFO L130 BoogieDeclarations]: Found specification of procedure alt_free [2024-11-28 02:59:43,386 INFO L138 BoogieDeclarations]: Found implementation of procedure alt_free [2024-11-28 02:59:43,386 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-28 02:59:43,386 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-28 02:59:43,386 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-28 02:59:43,386 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-28 02:59:43,386 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 02:59:43,386 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 02:59:43,694 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 02:59:43,696 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 02:59:45,816 INFO L? ?]: Removed 365 outVars from TransFormulas that were not future-live. [2024-11-28 02:59:45,816 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 02:59:45,858 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 02:59:45,858 INFO L312 CfgBuilder]: Removed 41 assume(true) statements. [2024-11-28 02:59:45,858 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:59:45 BoogieIcfgContainer [2024-11-28 02:59:45,859 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 02:59:45,861 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 02:59:45,861 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 02:59:45,866 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 02:59:45,866 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 02:59:41" (1/3) ... [2024-11-28 02:59:45,867 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@278d4dd3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 02:59:45, skipping insertion in model container [2024-11-28 02:59:45,867 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:59:42" (2/3) ... [2024-11-28 02:59:45,867 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@278d4dd3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 02:59:45, skipping insertion in model container [2024-11-28 02:59:45,867 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:59:45" (3/3) ... [2024-11-28 02:59:45,869 INFO L128 eAbstractionObserver]: Analyzing ICFG uthash_SAX_test6-2.i [2024-11-28 02:59:45,886 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 02:59:45,889 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG uthash_SAX_test6-2.i that has 5 procedures, 478 locations, 1 initial locations, 41 loop locations, and 4 error locations. [2024-11-28 02:59:45,987 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 02:59:46,003 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;@2cb91d5e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 02:59:46,003 INFO L334 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2024-11-28 02:59:46,010 INFO L276 IsEmpty]: Start isEmpty. Operand has 478 states, 454 states have (on average 1.592511013215859) internal successors, (723), 458 states have internal predecessors, (723), 16 states have call successors, (16), 4 states have call predecessors, (16), 4 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2024-11-28 02:59:46,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-28 02:59:46,017 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:59:46,018 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:59:46,018 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [alt_freeErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-28 02:59:46,025 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:59:46,026 INFO L85 PathProgramCache]: Analyzing trace with hash -1938186709, now seen corresponding path program 1 times [2024-11-28 02:59:46,034 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:59:46,034 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [71262905] [2024-11-28 02:59:46,035 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:59:46,035 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:59:46,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:59:46,274 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:59:46,275 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:59:46,275 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [71262905] [2024-11-28 02:59:46,275 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [71262905] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:59:46,276 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:59:46,276 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 02:59:46,277 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1915989820] [2024-11-28 02:59:46,280 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:59:46,283 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-28 02:59:46,284 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:59:46,303 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-28 02:59:46,303 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-28 02:59:46,308 INFO L87 Difference]: Start difference. First operand has 478 states, 454 states have (on average 1.592511013215859) internal successors, (723), 458 states have internal predecessors, (723), 16 states have call successors, (16), 4 states have call predecessors, (16), 4 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) Second operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:59:46,402 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:59:46,403 INFO L93 Difference]: Finished difference Result 952 states and 1517 transitions. [2024-11-28 02:59:46,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-28 02:59:46,405 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 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 8 [2024-11-28 02:59:46,405 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:59:46,422 INFO L225 Difference]: With dead ends: 952 [2024-11-28 02:59:46,422 INFO L226 Difference]: Without dead ends: 472 [2024-11-28 02:59:46,426 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-28 02:59:46,429 INFO L435 NwaCegarLoop]: 672 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 672 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 02:59:46,430 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 672 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 02:59:46,443 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 472 states. [2024-11-28 02:59:46,489 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 472 to 472. [2024-11-28 02:59:46,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 472 states, 449 states have (on average 1.4209354120267261) internal successors, (638), 453 states have internal predecessors, (638), 15 states have call successors, (15), 4 states have call predecessors, (15), 4 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-11-28 02:59:46,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 472 states to 472 states and 668 transitions. [2024-11-28 02:59:46,500 INFO L78 Accepts]: Start accepts. Automaton has 472 states and 668 transitions. Word has length 8 [2024-11-28 02:59:46,500 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:59:46,500 INFO L471 AbstractCegarLoop]: Abstraction has 472 states and 668 transitions. [2024-11-28 02:59:46,501 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:59:46,501 INFO L276 IsEmpty]: Start isEmpty. Operand 472 states and 668 transitions. [2024-11-28 02:59:46,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2024-11-28 02:59:46,502 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:59:46,502 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:59:46,502 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-28 02:59:46,502 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [alt_freeErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-28 02:59:46,503 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:59:46,503 INFO L85 PathProgramCache]: Analyzing trace with hash -1937955008, now seen corresponding path program 1 times [2024-11-28 02:59:46,503 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:59:46,503 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [913099152] [2024-11-28 02:59:46,504 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:59:46,504 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:59:46,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:59:46,800 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:59:46,801 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:59:46,801 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [913099152] [2024-11-28 02:59:46,801 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [913099152] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:59:46,801 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:59:46,802 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 02:59:46,802 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1802751442] [2024-11-28 02:59:46,802 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:59:46,803 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 02:59:46,804 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:59:46,804 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 02:59:46,805 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 02:59:46,806 INFO L87 Difference]: Start difference. First operand 472 states and 668 transitions. Second operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:59:47,128 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:59:47,128 INFO L93 Difference]: Finished difference Result 1169 states and 1665 transitions. [2024-11-28 02:59:47,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 02:59:47,129 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 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 10 [2024-11-28 02:59:47,129 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:59:47,135 INFO L225 Difference]: With dead ends: 1169 [2024-11-28 02:59:47,135 INFO L226 Difference]: Without dead ends: 917 [2024-11-28 02:59:47,137 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-28 02:59:47,138 INFO L435 NwaCegarLoop]: 703 mSDtfsCounter, 611 mSDsluCounter, 1337 mSDsCounter, 0 mSdLazyCounter, 75 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 625 SdHoareTripleChecker+Valid, 2040 SdHoareTripleChecker+Invalid, 76 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 75 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-28 02:59:47,139 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [625 Valid, 2040 Invalid, 76 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 75 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-28 02:59:47,141 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 917 states. [2024-11-28 02:59:47,195 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 917 to 474. [2024-11-28 02:59:47,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 474 states, 451 states have (on average 1.419068736141907) internal successors, (640), 455 states have internal predecessors, (640), 15 states have call successors, (15), 4 states have call predecessors, (15), 4 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-11-28 02:59:47,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 474 states to 474 states and 670 transitions. [2024-11-28 02:59:47,201 INFO L78 Accepts]: Start accepts. Automaton has 474 states and 670 transitions. Word has length 10 [2024-11-28 02:59:47,203 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:59:47,203 INFO L471 AbstractCegarLoop]: Abstraction has 474 states and 670 transitions. [2024-11-28 02:59:47,203 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:59:47,204 INFO L276 IsEmpty]: Start isEmpty. Operand 474 states and 670 transitions. [2024-11-28 02:59:47,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2024-11-28 02:59:47,206 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:59:47,206 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:59:47,206 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-28 02:59:47,207 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [alt_freeErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-28 02:59:47,207 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:59:47,207 INFO L85 PathProgramCache]: Analyzing trace with hash -1917721154, now seen corresponding path program 1 times [2024-11-28 02:59:47,208 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:59:47,208 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1066554994] [2024-11-28 02:59:47,208 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:59:47,208 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:59:47,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:59:47,762 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:59:47,763 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:59:47,763 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1066554994] [2024-11-28 02:59:47,763 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1066554994] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:59:47,763 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:59:47,763 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 02:59:47,763 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [167659882] [2024-11-28 02:59:47,764 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:59:47,765 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 02:59:47,765 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:59:47,766 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 02:59:47,767 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 02:59:47,767 INFO L87 Difference]: Start difference. First operand 474 states and 670 transitions. Second operand has 4 states, 4 states have (on average 16.25) internal successors, (65), 4 states have internal predecessors, (65), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:59:47,955 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:59:47,955 INFO L93 Difference]: Finished difference Result 901 states and 1269 transitions. [2024-11-28 02:59:47,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 02:59:47,956 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.25) internal successors, (65), 4 states have internal predecessors, (65), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 67 [2024-11-28 02:59:47,956 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:59:47,959 INFO L225 Difference]: With dead ends: 901 [2024-11-28 02:59:47,959 INFO L226 Difference]: Without dead ends: 431 [2024-11-28 02:59:47,960 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-28 02:59:47,961 INFO L435 NwaCegarLoop]: 565 mSDtfsCounter, 30 mSDsluCounter, 1111 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 1676 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 02:59:47,961 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 1676 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 02:59:47,965 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 431 states. [2024-11-28 02:59:47,980 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 431 to 431. [2024-11-28 02:59:47,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 431 states, 408 states have (on average 1.3774509803921569) internal successors, (562), 412 states have internal predecessors, (562), 15 states have call successors, (15), 4 states have call predecessors, (15), 4 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-11-28 02:59:47,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 431 states to 431 states and 592 transitions. [2024-11-28 02:59:47,987 INFO L78 Accepts]: Start accepts. Automaton has 431 states and 592 transitions. Word has length 67 [2024-11-28 02:59:47,988 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:59:47,988 INFO L471 AbstractCegarLoop]: Abstraction has 431 states and 592 transitions. [2024-11-28 02:59:47,988 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.25) internal successors, (65), 4 states have internal predecessors, (65), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:59:47,989 INFO L276 IsEmpty]: Start isEmpty. Operand 431 states and 592 transitions. [2024-11-28 02:59:47,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2024-11-28 02:59:47,991 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:59:47,991 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:59:47,991 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-28 02:59:47,991 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [alt_freeErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-28 02:59:47,992 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:59:47,992 INFO L85 PathProgramCache]: Analyzing trace with hash -1732136014, now seen corresponding path program 1 times [2024-11-28 02:59:47,992 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:59:47,992 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1632932207] [2024-11-28 02:59:47,992 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:59:47,992 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:59:48,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:59:48,719 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:59:48,720 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:59:48,720 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1632932207] [2024-11-28 02:59:48,721 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1632932207] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:59:48,721 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:59:48,721 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 02:59:48,721 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1226457842] [2024-11-28 02:59:48,721 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:59:48,723 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 02:59:48,723 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:59:48,723 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 02:59:48,723 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-28 02:59:48,724 INFO L87 Difference]: Start difference. First operand 431 states and 592 transitions. Second operand has 6 states, 6 states have (on average 10.833333333333334) internal successors, (65), 6 states have internal predecessors, (65), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:59:49,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:59:49,314 INFO L93 Difference]: Finished difference Result 863 states and 1188 transitions. [2024-11-28 02:59:49,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 02:59:49,315 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.833333333333334) internal successors, (65), 6 states have internal predecessors, (65), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 67 [2024-11-28 02:59:49,315 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:59:49,318 INFO L225 Difference]: With dead ends: 863 [2024-11-28 02:59:49,318 INFO L226 Difference]: Without dead ends: 436 [2024-11-28 02:59:49,319 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-28 02:59:49,321 INFO L435 NwaCegarLoop]: 569 mSDtfsCounter, 14 mSDsluCounter, 1979 mSDsCounter, 0 mSdLazyCounter, 334 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 2548 SdHoareTripleChecker+Invalid, 334 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 334 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-28 02:59:49,322 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 2548 Invalid, 334 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 334 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-28 02:59:49,326 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 436 states. [2024-11-28 02:59:49,340 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 436 to 433. [2024-11-28 02:59:49,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 433 states, 410 states have (on average 1.3756097560975609) internal successors, (564), 414 states have internal predecessors, (564), 15 states have call successors, (15), 4 states have call predecessors, (15), 4 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-11-28 02:59:49,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 433 states to 433 states and 594 transitions. [2024-11-28 02:59:49,346 INFO L78 Accepts]: Start accepts. Automaton has 433 states and 594 transitions. Word has length 67 [2024-11-28 02:59:49,346 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:59:49,347 INFO L471 AbstractCegarLoop]: Abstraction has 433 states and 594 transitions. [2024-11-28 02:59:49,347 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.833333333333334) internal successors, (65), 6 states have internal predecessors, (65), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:59:49,347 INFO L276 IsEmpty]: Start isEmpty. Operand 433 states and 594 transitions. [2024-11-28 02:59:49,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-11-28 02:59:49,349 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:59:49,349 INFO L218 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] [2024-11-28 02:59:49,349 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-28 02:59:49,350 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [alt_freeErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-28 02:59:49,352 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:59:49,352 INFO L85 PathProgramCache]: Analyzing trace with hash -1162689855, now seen corresponding path program 1 times [2024-11-28 02:59:49,352 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:59:49,353 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1173054522] [2024-11-28 02:59:49,353 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:59:49,353 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:59:49,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:59:49,789 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:59:49,789 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:59:49,789 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1173054522] [2024-11-28 02:59:49,789 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1173054522] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:59:49,789 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:59:49,789 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-28 02:59:49,789 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [991986589] [2024-11-28 02:59:49,789 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:59:49,790 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-28 02:59:49,790 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:59:49,790 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-28 02:59:49,790 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-28 02:59:49,791 INFO L87 Difference]: Start difference. First operand 433 states and 594 transitions. Second operand has 7 states, 7 states have (on average 9.428571428571429) internal successors, (66), 7 states have internal predecessors, (66), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:59:50,312 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:59:50,312 INFO L93 Difference]: Finished difference Result 867 states and 1192 transitions. [2024-11-28 02:59:50,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-28 02:59:50,313 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.428571428571429) internal successors, (66), 7 states have internal predecessors, (66), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 68 [2024-11-28 02:59:50,314 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:59:50,317 INFO L225 Difference]: With dead ends: 867 [2024-11-28 02:59:50,317 INFO L226 Difference]: Without dead ends: 438 [2024-11-28 02:59:50,318 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-28 02:59:50,321 INFO L435 NwaCegarLoop]: 563 mSDtfsCounter, 15 mSDsluCounter, 2495 mSDsCounter, 0 mSdLazyCounter, 404 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 3058 SdHoareTripleChecker+Invalid, 405 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 404 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-28 02:59:50,321 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 3058 Invalid, 405 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 404 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-28 02:59:50,324 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 438 states. [2024-11-28 02:59:50,335 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 438 to 437. [2024-11-28 02:59:50,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 437 states, 414 states have (on average 1.3743961352657006) internal successors, (569), 418 states have internal predecessors, (569), 15 states have call successors, (15), 4 states have call predecessors, (15), 4 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-11-28 02:59:50,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 437 states to 437 states and 599 transitions. [2024-11-28 02:59:50,339 INFO L78 Accepts]: Start accepts. Automaton has 437 states and 599 transitions. Word has length 68 [2024-11-28 02:59:50,339 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:59:50,340 INFO L471 AbstractCegarLoop]: Abstraction has 437 states and 599 transitions. [2024-11-28 02:59:50,340 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.428571428571429) internal successors, (66), 7 states have internal predecessors, (66), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:59:50,340 INFO L276 IsEmpty]: Start isEmpty. Operand 437 states and 599 transitions. [2024-11-28 02:59:50,341 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-11-28 02:59:50,341 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:59:50,341 INFO L218 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] [2024-11-28 02:59:50,342 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-28 02:59:50,342 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [alt_freeErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-28 02:59:50,342 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:59:50,342 INFO L85 PathProgramCache]: Analyzing trace with hash 671915861, now seen corresponding path program 1 times [2024-11-28 02:59:50,342 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:59:50,343 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [387870165] [2024-11-28 02:59:50,343 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:59:50,343 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:59:50,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:59:50,837 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:59:50,838 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:59:50,838 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [387870165] [2024-11-28 02:59:50,838 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [387870165] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:59:50,838 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:59:50,838 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 02:59:50,838 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [81006292] [2024-11-28 02:59:50,838 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:59:50,838 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 02:59:50,838 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:59:50,841 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 02:59:50,841 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 02:59:50,841 INFO L87 Difference]: Start difference. First operand 437 states and 599 transitions. Second operand has 4 states, 4 states have (on average 16.5) internal successors, (66), 4 states have internal predecessors, (66), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:59:51,037 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:59:51,037 INFO L93 Difference]: Finished difference Result 870 states and 1194 transitions. [2024-11-28 02:59:51,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 02:59:51,038 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.5) internal successors, (66), 4 states have internal predecessors, (66), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 68 [2024-11-28 02:59:51,038 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:59:51,040 INFO L225 Difference]: With dead ends: 870 [2024-11-28 02:59:51,041 INFO L226 Difference]: Without dead ends: 437 [2024-11-28 02:59:51,042 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 02:59:51,042 INFO L435 NwaCegarLoop]: 574 mSDtfsCounter, 17 mSDsluCounter, 1019 mSDsCounter, 0 mSdLazyCounter, 112 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 1593 SdHoareTripleChecker+Invalid, 112 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 112 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 02:59:51,043 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 1593 Invalid, 112 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 112 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 02:59:51,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 437 states. [2024-11-28 02:59:51,055 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 437 to 437. [2024-11-28 02:59:51,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 437 states, 414 states have (on average 1.3719806763285025) internal successors, (568), 418 states have internal predecessors, (568), 15 states have call successors, (15), 4 states have call predecessors, (15), 4 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-11-28 02:59:51,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 437 states to 437 states and 598 transitions. [2024-11-28 02:59:51,059 INFO L78 Accepts]: Start accepts. Automaton has 437 states and 598 transitions. Word has length 68 [2024-11-28 02:59:51,060 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:59:51,060 INFO L471 AbstractCegarLoop]: Abstraction has 437 states and 598 transitions. [2024-11-28 02:59:51,060 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.5) internal successors, (66), 4 states have internal predecessors, (66), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:59:51,060 INFO L276 IsEmpty]: Start isEmpty. Operand 437 states and 598 transitions. [2024-11-28 02:59:51,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-11-28 02:59:51,061 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:59:51,061 INFO L218 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] [2024-11-28 02:59:51,061 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-28 02:59:51,062 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [alt_freeErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-28 02:59:51,062 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:59:51,062 INFO L85 PathProgramCache]: Analyzing trace with hash 1163109374, now seen corresponding path program 1 times [2024-11-28 02:59:51,063 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:59:51,063 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2071235849] [2024-11-28 02:59:51,063 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:59:51,063 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:59:51,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:59:51,705 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:59:51,705 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:59:51,705 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2071235849] [2024-11-28 02:59:51,706 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2071235849] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:59:51,706 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:59:51,706 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-28 02:59:51,706 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1530587566] [2024-11-28 02:59:51,706 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:59:51,706 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-28 02:59:51,706 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:59:51,707 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-28 02:59:51,707 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-28 02:59:51,707 INFO L87 Difference]: Start difference. First operand 437 states and 598 transitions. Second operand has 9 states, 9 states have (on average 7.444444444444445) internal successors, (67), 9 states have internal predecessors, (67), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:59:52,455 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:59:52,455 INFO L93 Difference]: Finished difference Result 883 states and 1213 transitions. [2024-11-28 02:59:52,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-28 02:59:52,456 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.444444444444445) internal successors, (67), 9 states have internal predecessors, (67), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 69 [2024-11-28 02:59:52,456 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:59:52,459 INFO L225 Difference]: With dead ends: 883 [2024-11-28 02:59:52,459 INFO L226 Difference]: Without dead ends: 450 [2024-11-28 02:59:52,460 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2024-11-28 02:59:52,462 INFO L435 NwaCegarLoop]: 564 mSDtfsCounter, 34 mSDsluCounter, 3561 mSDsCounter, 0 mSdLazyCounter, 536 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 4125 SdHoareTripleChecker+Invalid, 539 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 536 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-28 02:59:52,462 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 4125 Invalid, 539 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 536 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-28 02:59:52,464 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 450 states. [2024-11-28 02:59:52,478 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 450 to 447. [2024-11-28 02:59:52,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 447 states, 424 states have (on average 1.3726415094339623) internal successors, (582), 428 states have internal predecessors, (582), 15 states have call successors, (15), 4 states have call predecessors, (15), 4 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-11-28 02:59:52,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 447 states to 447 states and 612 transitions. [2024-11-28 02:59:52,484 INFO L78 Accepts]: Start accepts. Automaton has 447 states and 612 transitions. Word has length 69 [2024-11-28 02:59:52,484 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:59:52,484 INFO L471 AbstractCegarLoop]: Abstraction has 447 states and 612 transitions. [2024-11-28 02:59:52,484 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.444444444444445) internal successors, (67), 9 states have internal predecessors, (67), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:59:52,485 INFO L276 IsEmpty]: Start isEmpty. Operand 447 states and 612 transitions. [2024-11-28 02:59:52,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-11-28 02:59:52,485 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:59:52,485 INFO L218 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] [2024-11-28 02:59:52,486 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-28 02:59:52,486 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [alt_freeErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-28 02:59:52,487 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:59:52,487 INFO L85 PathProgramCache]: Analyzing trace with hash -1519186921, now seen corresponding path program 1 times [2024-11-28 02:59:52,487 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:59:52,487 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1209889792] [2024-11-28 02:59:52,487 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:59:52,487 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:59:52,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:59:53,153 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:59:53,153 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:59:53,153 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1209889792] [2024-11-28 02:59:53,153 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1209889792] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:59:53,153 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:59:53,153 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-28 02:59:53,153 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [547888084] [2024-11-28 02:59:53,154 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:59:53,154 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-28 02:59:53,154 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:59:53,154 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-28 02:59:53,154 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-28 02:59:53,155 INFO L87 Difference]: Start difference. First operand 447 states and 612 transitions. Second operand has 8 states, 8 states have (on average 8.375) internal successors, (67), 8 states have internal predecessors, (67), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:59:53,841 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:59:53,841 INFO L93 Difference]: Finished difference Result 893 states and 1225 transitions. [2024-11-28 02:59:53,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-28 02:59:53,844 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.375) internal successors, (67), 8 states have internal predecessors, (67), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 69 [2024-11-28 02:59:53,845 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:59:53,849 INFO L225 Difference]: With dead ends: 893 [2024-11-28 02:59:53,849 INFO L226 Difference]: Without dead ends: 450 [2024-11-28 02:59:53,851 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2024-11-28 02:59:53,852 INFO L435 NwaCegarLoop]: 568 mSDtfsCounter, 27 mSDsluCounter, 3044 mSDsCounter, 0 mSdLazyCounter, 425 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 3612 SdHoareTripleChecker+Invalid, 426 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 425 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-28 02:59:53,852 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 3612 Invalid, 426 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 425 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-28 02:59:53,854 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 450 states. [2024-11-28 02:59:53,875 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 450 to 450. [2024-11-28 02:59:53,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 450 states, 427 states have (on average 1.370023419203747) internal successors, (585), 431 states have internal predecessors, (585), 15 states have call successors, (15), 4 states have call predecessors, (15), 4 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-11-28 02:59:53,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 450 states to 450 states and 615 transitions. [2024-11-28 02:59:53,881 INFO L78 Accepts]: Start accepts. Automaton has 450 states and 615 transitions. Word has length 69 [2024-11-28 02:59:53,881 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:59:53,882 INFO L471 AbstractCegarLoop]: Abstraction has 450 states and 615 transitions. [2024-11-28 02:59:53,882 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.375) internal successors, (67), 8 states have internal predecessors, (67), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:59:53,882 INFO L276 IsEmpty]: Start isEmpty. Operand 450 states and 615 transitions. [2024-11-28 02:59:53,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-11-28 02:59:53,883 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:59:53,883 INFO L218 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] [2024-11-28 02:59:53,883 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-28 02:59:53,884 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [alt_freeErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-28 02:59:53,884 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:59:53,884 INFO L85 PathProgramCache]: Analyzing trace with hash -357887657, now seen corresponding path program 1 times [2024-11-28 02:59:53,884 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:59:53,884 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1546135287] [2024-11-28 02:59:53,885 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:59:53,885 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:59:53,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:59:54,250 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:59:54,250 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:59:54,251 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1546135287] [2024-11-28 02:59:54,251 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1546135287] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:59:54,251 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:59:54,251 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 02:59:54,251 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [932284978] [2024-11-28 02:59:54,251 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:59:54,251 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 02:59:54,252 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:59:54,252 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 02:59:54,252 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-28 02:59:54,252 INFO L87 Difference]: Start difference. First operand 450 states and 615 transitions. Second operand has 6 states, 6 states have (on average 11.166666666666666) internal successors, (67), 6 states have internal predecessors, (67), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:59:54,663 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:59:54,663 INFO L93 Difference]: Finished difference Result 899 states and 1231 transitions. [2024-11-28 02:59:54,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 02:59:54,664 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.166666666666666) internal successors, (67), 6 states have internal predecessors, (67), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 69 [2024-11-28 02:59:54,664 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:59:54,667 INFO L225 Difference]: With dead ends: 899 [2024-11-28 02:59:54,667 INFO L226 Difference]: Without dead ends: 453 [2024-11-28 02:59:54,668 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-28 02:59:54,670 INFO L435 NwaCegarLoop]: 574 mSDtfsCounter, 8 mSDsluCounter, 1996 mSDsCounter, 0 mSdLazyCounter, 316 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 2570 SdHoareTripleChecker+Invalid, 317 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 316 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-28 02:59:54,670 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 2570 Invalid, 317 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 316 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-28 02:59:54,672 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 453 states. [2024-11-28 02:59:54,684 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 453 to 453. [2024-11-28 02:59:54,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 453 states, 430 states have (on average 1.3674418604651162) internal successors, (588), 434 states have internal predecessors, (588), 15 states have call successors, (15), 4 states have call predecessors, (15), 4 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-11-28 02:59:54,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 453 states to 453 states and 618 transitions. [2024-11-28 02:59:54,689 INFO L78 Accepts]: Start accepts. Automaton has 453 states and 618 transitions. Word has length 69 [2024-11-28 02:59:54,690 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:59:54,690 INFO L471 AbstractCegarLoop]: Abstraction has 453 states and 618 transitions. [2024-11-28 02:59:54,690 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.166666666666666) internal successors, (67), 6 states have internal predecessors, (67), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:59:54,690 INFO L276 IsEmpty]: Start isEmpty. Operand 453 states and 618 transitions. [2024-11-28 02:59:54,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-11-28 02:59:54,691 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:59:54,691 INFO L218 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] [2024-11-28 02:59:54,691 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-28 02:59:54,692 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [alt_freeErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-28 02:59:54,692 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:59:54,692 INFO L85 PathProgramCache]: Analyzing trace with hash -1901356284, now seen corresponding path program 1 times [2024-11-28 02:59:54,692 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:59:54,692 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1204636530] [2024-11-28 02:59:54,692 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:59:54,692 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:59:54,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:59:55,417 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:59:55,417 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:59:55,417 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1204636530] [2024-11-28 02:59:55,417 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1204636530] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:59:55,417 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:59:55,417 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-28 02:59:55,417 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1941825710] [2024-11-28 02:59:55,418 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:59:55,418 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-28 02:59:55,419 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:59:55,419 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-28 02:59:55,419 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-11-28 02:59:55,419 INFO L87 Difference]: Start difference. First operand 453 states and 618 transitions. Second operand has 9 states, 9 states have (on average 7.555555555555555) internal successors, (68), 9 states have internal predecessors, (68), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:59:56,843 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:59:56,843 INFO L93 Difference]: Finished difference Result 1323 states and 1814 transitions. [2024-11-28 02:59:56,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-28 02:59:56,844 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.555555555555555) internal successors, (68), 9 states have internal predecessors, (68), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 70 [2024-11-28 02:59:56,844 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:59:56,849 INFO L225 Difference]: With dead ends: 1323 [2024-11-28 02:59:56,849 INFO L226 Difference]: Without dead ends: 874 [2024-11-28 02:59:56,850 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=62, Invalid=148, Unknown=0, NotChecked=0, Total=210 [2024-11-28 02:59:56,851 INFO L435 NwaCegarLoop]: 609 mSDtfsCounter, 692 mSDsluCounter, 2632 mSDsCounter, 0 mSdLazyCounter, 571 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 704 SdHoareTripleChecker+Valid, 3241 SdHoareTripleChecker+Invalid, 581 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 571 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-28 02:59:56,852 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [704 Valid, 3241 Invalid, 581 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 571 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-28 02:59:56,854 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 874 states. [2024-11-28 02:59:56,875 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 874 to 492. [2024-11-28 02:59:56,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 492 states, 469 states have (on average 1.3454157782515992) internal successors, (631), 473 states have internal predecessors, (631), 15 states have call successors, (15), 4 states have call predecessors, (15), 4 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-11-28 02:59:56,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 492 states to 492 states and 661 transitions. [2024-11-28 02:59:56,881 INFO L78 Accepts]: Start accepts. Automaton has 492 states and 661 transitions. Word has length 70 [2024-11-28 02:59:56,881 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:59:56,881 INFO L471 AbstractCegarLoop]: Abstraction has 492 states and 661 transitions. [2024-11-28 02:59:56,882 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.555555555555555) internal successors, (68), 9 states have internal predecessors, (68), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:59:56,882 INFO L276 IsEmpty]: Start isEmpty. Operand 492 states and 661 transitions. [2024-11-28 02:59:56,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-11-28 02:59:56,883 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:59:56,883 INFO L218 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] [2024-11-28 02:59:56,883 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-28 02:59:56,883 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [alt_freeErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-28 02:59:56,884 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:59:56,884 INFO L85 PathProgramCache]: Analyzing trace with hash -1164625832, now seen corresponding path program 1 times [2024-11-28 02:59:56,884 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:59:56,884 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1909327329] [2024-11-28 02:59:56,884 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:59:56,885 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:59:56,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:59:57,230 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:59:57,231 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:59:57,231 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1909327329] [2024-11-28 02:59:57,231 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1909327329] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:59:57,231 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:59:57,231 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-28 02:59:57,231 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1815571018] [2024-11-28 02:59:57,231 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:59:57,232 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-28 02:59:57,232 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:59:57,232 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-28 02:59:57,233 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-28 02:59:57,233 INFO L87 Difference]: Start difference. First operand 492 states and 661 transitions. Second operand has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 7 states have internal predecessors, (68), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:59:57,825 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:59:57,826 INFO L93 Difference]: Finished difference Result 946 states and 1283 transitions. [2024-11-28 02:59:57,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-28 02:59:57,827 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 7 states have internal predecessors, (68), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 70 [2024-11-28 02:59:57,827 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:59:57,831 INFO L225 Difference]: With dead ends: 946 [2024-11-28 02:59:57,831 INFO L226 Difference]: Without dead ends: 497 [2024-11-28 02:59:57,833 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-11-28 02:59:57,833 INFO L435 NwaCegarLoop]: 569 mSDtfsCounter, 13 mSDsluCounter, 2495 mSDsCounter, 0 mSdLazyCounter, 423 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 3064 SdHoareTripleChecker+Invalid, 425 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 423 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-28 02:59:57,834 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 3064 Invalid, 425 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 423 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-28 02:59:57,835 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 497 states. [2024-11-28 02:59:57,856 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 497 to 492. [2024-11-28 02:59:57,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 492 states, 469 states have (on average 1.3454157782515992) internal successors, (631), 473 states have internal predecessors, (631), 15 states have call successors, (15), 4 states have call predecessors, (15), 4 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-11-28 02:59:57,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 492 states to 492 states and 661 transitions. [2024-11-28 02:59:57,862 INFO L78 Accepts]: Start accepts. Automaton has 492 states and 661 transitions. Word has length 70 [2024-11-28 02:59:57,862 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:59:57,862 INFO L471 AbstractCegarLoop]: Abstraction has 492 states and 661 transitions. [2024-11-28 02:59:57,862 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 7 states have internal predecessors, (68), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:59:57,862 INFO L276 IsEmpty]: Start isEmpty. Operand 492 states and 661 transitions. [2024-11-28 02:59:57,863 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2024-11-28 02:59:57,863 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:59:57,863 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:59:57,863 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-28 02:59:57,863 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [alt_freeErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-28 02:59:57,864 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:59:57,864 INFO L85 PathProgramCache]: Analyzing trace with hash -1034146717, now seen corresponding path program 1 times [2024-11-28 02:59:57,864 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:59:57,865 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1568057220] [2024-11-28 02:59:57,865 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:59:57,865 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:59:57,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:59:58,297 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:59:58,297 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:59:58,297 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1568057220] [2024-11-28 02:59:58,297 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1568057220] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:59:58,297 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:59:58,298 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-28 02:59:58,298 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [340589221] [2024-11-28 02:59:58,298 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:59:58,298 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-28 02:59:58,298 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:59:58,299 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-28 02:59:58,299 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-28 02:59:58,299 INFO L87 Difference]: Start difference. First operand 492 states and 661 transitions. Second operand has 9 states, 9 states have (on average 7.666666666666667) internal successors, (69), 9 states have internal predecessors, (69), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:59:58,840 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:59:58,840 INFO L93 Difference]: Finished difference Result 951 states and 1289 transitions. [2024-11-28 02:59:58,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-28 02:59:58,840 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.666666666666667) internal successors, (69), 9 states have internal predecessors, (69), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 71 [2024-11-28 02:59:58,841 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:59:58,843 INFO L225 Difference]: With dead ends: 951 [2024-11-28 02:59:58,843 INFO L226 Difference]: Without dead ends: 502 [2024-11-28 02:59:58,844 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-28 02:59:58,845 INFO L435 NwaCegarLoop]: 563 mSDtfsCounter, 20 mSDsluCounter, 3075 mSDsCounter, 0 mSdLazyCounter, 440 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 3638 SdHoareTripleChecker+Invalid, 441 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 440 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-28 02:59:58,845 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 3638 Invalid, 441 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 440 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-28 02:59:58,846 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 502 states. [2024-11-28 02:59:58,861 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 502 to 495. [2024-11-28 02:59:58,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 495 states, 472 states have (on average 1.3453389830508475) internal successors, (635), 476 states have internal predecessors, (635), 15 states have call successors, (15), 4 states have call predecessors, (15), 4 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-11-28 02:59:58,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 495 states to 495 states and 665 transitions. [2024-11-28 02:59:58,865 INFO L78 Accepts]: Start accepts. Automaton has 495 states and 665 transitions. Word has length 71 [2024-11-28 02:59:58,866 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:59:58,866 INFO L471 AbstractCegarLoop]: Abstraction has 495 states and 665 transitions. [2024-11-28 02:59:58,866 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.666666666666667) internal successors, (69), 9 states have internal predecessors, (69), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:59:58,866 INFO L276 IsEmpty]: Start isEmpty. Operand 495 states and 665 transitions. [2024-11-28 02:59:58,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2024-11-28 02:59:58,867 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:59:58,867 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:59:58,867 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-28 02:59:58,867 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [alt_freeErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-28 02:59:58,868 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:59:58,868 INFO L85 PathProgramCache]: Analyzing trace with hash 1103094087, now seen corresponding path program 1 times [2024-11-28 02:59:58,868 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:59:58,868 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1688308137] [2024-11-28 02:59:58,868 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:59:58,868 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:59:58,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:59:59,228 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:59:59,228 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:59:59,229 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1688308137] [2024-11-28 02:59:59,229 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1688308137] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:59:59,229 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:59:59,229 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-28 02:59:59,229 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [166395517] [2024-11-28 02:59:59,229 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:59:59,230 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-28 02:59:59,230 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:59:59,230 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-28 02:59:59,230 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-28 02:59:59,231 INFO L87 Difference]: Start difference. First operand 495 states and 665 transitions. Second operand has 9 states, 9 states have (on average 7.666666666666667) internal successors, (69), 9 states have internal predecessors, (69), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:59:59,892 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:59:59,892 INFO L93 Difference]: Finished difference Result 969 states and 1309 transitions. [2024-11-28 02:59:59,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-28 02:59:59,893 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.666666666666667) internal successors, (69), 9 states have internal predecessors, (69), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 71 [2024-11-28 02:59:59,893 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:59:59,896 INFO L225 Difference]: With dead ends: 969 [2024-11-28 02:59:59,896 INFO L226 Difference]: Without dead ends: 517 [2024-11-28 02:59:59,897 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2024-11-28 02:59:59,898 INFO L435 NwaCegarLoop]: 575 mSDtfsCounter, 38 mSDsluCounter, 3527 mSDsCounter, 0 mSdLazyCounter, 639 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 4102 SdHoareTripleChecker+Invalid, 641 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 639 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-28 02:59:59,898 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 4102 Invalid, 641 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 639 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-28 02:59:59,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 517 states. [2024-11-28 02:59:59,917 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 517 to 495. [2024-11-28 02:59:59,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 495 states, 472 states have (on average 1.3453389830508475) internal successors, (635), 476 states have internal predecessors, (635), 15 states have call successors, (15), 4 states have call predecessors, (15), 4 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-11-28 02:59:59,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 495 states to 495 states and 665 transitions. [2024-11-28 02:59:59,922 INFO L78 Accepts]: Start accepts. Automaton has 495 states and 665 transitions. Word has length 71 [2024-11-28 02:59:59,922 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:59:59,923 INFO L471 AbstractCegarLoop]: Abstraction has 495 states and 665 transitions. [2024-11-28 02:59:59,923 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.666666666666667) internal successors, (69), 9 states have internal predecessors, (69), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:59:59,923 INFO L276 IsEmpty]: Start isEmpty. Operand 495 states and 665 transitions. [2024-11-28 02:59:59,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2024-11-28 02:59:59,924 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:59:59,926 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:59:59,926 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-28 02:59:59,927 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [alt_freeErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-28 02:59:59,927 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:59:59,927 INFO L85 PathProgramCache]: Analyzing trace with hash 747644936, now seen corresponding path program 1 times [2024-11-28 02:59:59,927 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:59:59,927 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [316645205] [2024-11-28 02:59:59,928 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:59:59,928 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:59:59,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:00:00,339 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:00:00,339 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:00:00,340 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [316645205] [2024-11-28 03:00:00,340 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [316645205] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:00:00,340 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:00:00,340 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-28 03:00:00,340 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [546793656] [2024-11-28 03:00:00,340 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:00:00,340 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-28 03:00:00,340 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:00:00,341 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-28 03:00:00,341 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2024-11-28 03:00:00,341 INFO L87 Difference]: Start difference. First operand 495 states and 665 transitions. Second operand has 10 states, 10 states have (on average 7.0) internal successors, (70), 10 states have internal predecessors, (70), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:00:00,937 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:00:00,937 INFO L93 Difference]: Finished difference Result 963 states and 1306 transitions. [2024-11-28 03:00:00,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-28 03:00:00,938 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 7.0) internal successors, (70), 10 states have internal predecessors, (70), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 72 [2024-11-28 03:00:00,938 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:00:00,941 INFO L225 Difference]: With dead ends: 963 [2024-11-28 03:00:00,941 INFO L226 Difference]: Without dead ends: 511 [2024-11-28 03:00:00,942 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2024-11-28 03:00:00,943 INFO L435 NwaCegarLoop]: 570 mSDtfsCounter, 23 mSDsluCounter, 3576 mSDsCounter, 0 mSdLazyCounter, 626 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 4146 SdHoareTripleChecker+Invalid, 627 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 626 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-28 03:00:00,943 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 4146 Invalid, 627 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 626 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-28 03:00:00,944 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 511 states. [2024-11-28 03:00:00,959 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 511 to 505. [2024-11-28 03:00:00,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 505 states, 482 states have (on average 1.342323651452282) internal successors, (647), 486 states have internal predecessors, (647), 15 states have call successors, (15), 4 states have call predecessors, (15), 4 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-11-28 03:00:00,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 505 states to 505 states and 677 transitions. [2024-11-28 03:00:00,964 INFO L78 Accepts]: Start accepts. Automaton has 505 states and 677 transitions. Word has length 72 [2024-11-28 03:00:00,964 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:00:00,964 INFO L471 AbstractCegarLoop]: Abstraction has 505 states and 677 transitions. [2024-11-28 03:00:00,964 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.0) internal successors, (70), 10 states have internal predecessors, (70), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:00:00,964 INFO L276 IsEmpty]: Start isEmpty. Operand 505 states and 677 transitions. [2024-11-28 03:00:00,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2024-11-28 03:00:00,965 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:00:00,965 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:00:00,965 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-28 03:00:00,965 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [alt_freeErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-28 03:00:00,966 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:00:00,966 INFO L85 PathProgramCache]: Analyzing trace with hash -1717366876, now seen corresponding path program 1 times [2024-11-28 03:00:00,966 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:00:00,966 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2016371854] [2024-11-28 03:00:00,966 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:00:00,966 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:00:01,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:00:01,379 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:00:01,379 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:00:01,379 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2016371854] [2024-11-28 03:00:01,379 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2016371854] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:00:01,379 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:00:01,379 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-28 03:00:01,380 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [302878517] [2024-11-28 03:00:01,380 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:00:01,380 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-28 03:00:01,380 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:00:01,381 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-28 03:00:01,381 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-11-28 03:00:01,381 INFO L87 Difference]: Start difference. First operand 505 states and 677 transitions. Second operand has 10 states, 10 states have (on average 7.0) internal successors, (70), 10 states have internal predecessors, (70), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:00:02,129 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:00:02,129 INFO L93 Difference]: Finished difference Result 983 states and 1330 transitions. [2024-11-28 03:00:02,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-28 03:00:02,130 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 7.0) internal successors, (70), 10 states have internal predecessors, (70), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 72 [2024-11-28 03:00:02,130 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:00:02,133 INFO L225 Difference]: With dead ends: 983 [2024-11-28 03:00:02,133 INFO L226 Difference]: Without dead ends: 521 [2024-11-28 03:00:02,134 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-11-28 03:00:02,135 INFO L435 NwaCegarLoop]: 556 mSDtfsCounter, 17 mSDsluCounter, 4044 mSDsCounter, 0 mSdLazyCounter, 664 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 4600 SdHoareTripleChecker+Invalid, 664 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 664 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-28 03:00:02,135 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 4600 Invalid, 664 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 664 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-28 03:00:02,136 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 521 states. [2024-11-28 03:00:02,153 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 521 to 508. [2024-11-28 03:00:02,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 508 states, 485 states have (on average 1.3422680412371133) internal successors, (651), 489 states have internal predecessors, (651), 15 states have call successors, (15), 4 states have call predecessors, (15), 4 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-11-28 03:00:02,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 508 states to 508 states and 681 transitions. [2024-11-28 03:00:02,158 INFO L78 Accepts]: Start accepts. Automaton has 508 states and 681 transitions. Word has length 72 [2024-11-28 03:00:02,158 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:00:02,158 INFO L471 AbstractCegarLoop]: Abstraction has 508 states and 681 transitions. [2024-11-28 03:00:02,159 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.0) internal successors, (70), 10 states have internal predecessors, (70), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:00:02,159 INFO L276 IsEmpty]: Start isEmpty. Operand 508 states and 681 transitions. [2024-11-28 03:00:02,159 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2024-11-28 03:00:02,160 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:00:02,160 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:00:02,160 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-28 03:00:02,160 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [alt_freeErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-28 03:00:02,160 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:00:02,161 INFO L85 PathProgramCache]: Analyzing trace with hash 1079547684, now seen corresponding path program 1 times [2024-11-28 03:00:02,161 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:00:02,161 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [474171022] [2024-11-28 03:00:02,161 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:00:02,161 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:00:02,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:00:02,574 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:00:02,574 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:00:02,575 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [474171022] [2024-11-28 03:00:02,575 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [474171022] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:00:02,575 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:00:02,575 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-28 03:00:02,575 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [697051824] [2024-11-28 03:00:02,575 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:00:02,575 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-28 03:00:02,575 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:00:02,576 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-28 03:00:02,578 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-28 03:00:02,578 INFO L87 Difference]: Start difference. First operand 508 states and 681 transitions. Second operand has 7 states, 7 states have (on average 10.0) internal successors, (70), 7 states have internal predecessors, (70), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:00:03,050 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:00:03,050 INFO L93 Difference]: Finished difference Result 978 states and 1320 transitions. [2024-11-28 03:00:03,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-28 03:00:03,051 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.0) internal successors, (70), 7 states have internal predecessors, (70), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 72 [2024-11-28 03:00:03,051 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:00:03,054 INFO L225 Difference]: With dead ends: 978 [2024-11-28 03:00:03,054 INFO L226 Difference]: Without dead ends: 513 [2024-11-28 03:00:03,056 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-28 03:00:03,056 INFO L435 NwaCegarLoop]: 564 mSDtfsCounter, 11 mSDsluCounter, 2524 mSDsCounter, 0 mSdLazyCounter, 375 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 3088 SdHoareTripleChecker+Invalid, 375 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 375 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-28 03:00:03,057 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 3088 Invalid, 375 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 375 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-28 03:00:03,058 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 513 states. [2024-11-28 03:00:03,074 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 513 to 508. [2024-11-28 03:00:03,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 508 states, 485 states have (on average 1.3402061855670102) internal successors, (650), 489 states have internal predecessors, (650), 15 states have call successors, (15), 4 states have call predecessors, (15), 4 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-11-28 03:00:03,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 508 states to 508 states and 680 transitions. [2024-11-28 03:00:03,079 INFO L78 Accepts]: Start accepts. Automaton has 508 states and 680 transitions. Word has length 72 [2024-11-28 03:00:03,079 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:00:03,079 INFO L471 AbstractCegarLoop]: Abstraction has 508 states and 680 transitions. [2024-11-28 03:00:03,079 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.0) internal successors, (70), 7 states have internal predecessors, (70), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:00:03,079 INFO L276 IsEmpty]: Start isEmpty. Operand 508 states and 680 transitions. [2024-11-28 03:00:03,080 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2024-11-28 03:00:03,080 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:00:03,080 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:00:03,080 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-28 03:00:03,080 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [alt_freeErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-28 03:00:03,081 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:00:03,081 INFO L85 PathProgramCache]: Analyzing trace with hash -1602748611, now seen corresponding path program 1 times [2024-11-28 03:00:03,081 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:00:03,082 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2018702880] [2024-11-28 03:00:03,082 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:00:03,082 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:00:03,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:00:03,399 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:00:03,399 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:00:03,399 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2018702880] [2024-11-28 03:00:03,400 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2018702880] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:00:03,400 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:00:03,400 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-28 03:00:03,400 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1931334148] [2024-11-28 03:00:03,400 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:00:03,400 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-28 03:00:03,401 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:00:03,401 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-28 03:00:03,402 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-28 03:00:03,402 INFO L87 Difference]: Start difference. First operand 508 states and 680 transitions. Second operand has 7 states, 7 states have (on average 10.0) internal successors, (70), 7 states have internal predecessors, (70), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:00:03,970 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:00:03,970 INFO L93 Difference]: Finished difference Result 976 states and 1318 transitions. [2024-11-28 03:00:03,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-28 03:00:03,971 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.0) internal successors, (70), 7 states have internal predecessors, (70), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 72 [2024-11-28 03:00:03,971 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:00:03,975 INFO L225 Difference]: With dead ends: 976 [2024-11-28 03:00:03,975 INFO L226 Difference]: Without dead ends: 511 [2024-11-28 03:00:03,976 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-28 03:00:03,977 INFO L435 NwaCegarLoop]: 568 mSDtfsCounter, 8 mSDsluCounter, 2479 mSDsCounter, 0 mSdLazyCounter, 426 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 3047 SdHoareTripleChecker+Invalid, 427 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 426 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-28 03:00:03,977 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 3047 Invalid, 427 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 426 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-28 03:00:03,979 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 511 states. [2024-11-28 03:00:04,005 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 511 to 511. [2024-11-28 03:00:04,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 511 states, 488 states have (on average 1.3381147540983607) internal successors, (653), 492 states have internal predecessors, (653), 15 states have call successors, (15), 4 states have call predecessors, (15), 4 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-11-28 03:00:04,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 511 states to 511 states and 683 transitions. [2024-11-28 03:00:04,011 INFO L78 Accepts]: Start accepts. Automaton has 511 states and 683 transitions. Word has length 72 [2024-11-28 03:00:04,011 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:00:04,012 INFO L471 AbstractCegarLoop]: Abstraction has 511 states and 683 transitions. [2024-11-28 03:00:04,012 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.0) internal successors, (70), 7 states have internal predecessors, (70), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:00:04,012 INFO L276 IsEmpty]: Start isEmpty. Operand 511 states and 683 transitions. [2024-11-28 03:00:04,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2024-11-28 03:00:04,016 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:00:04,016 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:00:04,016 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-28 03:00:04,016 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [alt_freeErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-28 03:00:04,017 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:00:04,017 INFO L85 PathProgramCache]: Analyzing trace with hash 1348607590, now seen corresponding path program 1 times [2024-11-28 03:00:04,017 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:00:04,017 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1330609284] [2024-11-28 03:00:04,017 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:00:04,017 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:00:04,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:00:04,679 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:00:04,680 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:00:04,680 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1330609284] [2024-11-28 03:00:04,680 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1330609284] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:00:04,680 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:00:04,680 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-28 03:00:04,680 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2128376843] [2024-11-28 03:00:04,680 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:00:04,681 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-28 03:00:04,681 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:00:04,682 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-28 03:00:04,682 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2024-11-28 03:00:04,682 INFO L87 Difference]: Start difference. First operand 511 states and 683 transitions. Second operand has 10 states, 10 states have (on average 7.1) internal successors, (71), 10 states have internal predecessors, (71), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:00:05,702 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:00:05,703 INFO L93 Difference]: Finished difference Result 991 states and 1337 transitions. [2024-11-28 03:00:05,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-28 03:00:05,704 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 7.1) internal successors, (71), 10 states have internal predecessors, (71), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 73 [2024-11-28 03:00:05,704 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:00:05,708 INFO L225 Difference]: With dead ends: 991 [2024-11-28 03:00:05,708 INFO L226 Difference]: Without dead ends: 523 [2024-11-28 03:00:05,709 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2024-11-28 03:00:05,710 INFO L435 NwaCegarLoop]: 567 mSDtfsCounter, 13 mSDsluCounter, 3539 mSDsCounter, 0 mSdLazyCounter, 651 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 4106 SdHoareTripleChecker+Invalid, 651 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 651 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-28 03:00:05,710 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 4106 Invalid, 651 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 651 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-28 03:00:05,712 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 523 states. [2024-11-28 03:00:05,733 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 523 to 515. [2024-11-28 03:00:05,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 515 states, 492 states have (on average 1.3373983739837398) internal successors, (658), 496 states have internal predecessors, (658), 15 states have call successors, (15), 4 states have call predecessors, (15), 4 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-11-28 03:00:05,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 515 states to 515 states and 688 transitions. [2024-11-28 03:00:05,739 INFO L78 Accepts]: Start accepts. Automaton has 515 states and 688 transitions. Word has length 73 [2024-11-28 03:00:05,739 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:00:05,739 INFO L471 AbstractCegarLoop]: Abstraction has 515 states and 688 transitions. [2024-11-28 03:00:05,740 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.1) internal successors, (71), 10 states have internal predecessors, (71), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:00:05,740 INFO L276 IsEmpty]: Start isEmpty. Operand 515 states and 688 transitions. [2024-11-28 03:00:05,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2024-11-28 03:00:05,741 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:00:05,741 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:00:05,741 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-28 03:00:05,742 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [alt_freeErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-28 03:00:05,742 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:00:05,742 INFO L85 PathProgramCache]: Analyzing trace with hash -1017786029, now seen corresponding path program 1 times [2024-11-28 03:00:05,742 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:00:05,743 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [932046614] [2024-11-28 03:00:05,743 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:00:05,743 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:00:05,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:00:06,214 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:00:06,215 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:00:06,215 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [932046614] [2024-11-28 03:00:06,215 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [932046614] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:00:06,215 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:00:06,215 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-28 03:00:06,215 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [679308944] [2024-11-28 03:00:06,215 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:00:06,215 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-28 03:00:06,215 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:00:06,216 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-28 03:00:06,216 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2024-11-28 03:00:06,216 INFO L87 Difference]: Start difference. First operand 515 states and 688 transitions. Second operand has 11 states, 11 states have (on average 6.454545454545454) internal successors, (71), 11 states have internal predecessors, (71), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:00:07,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:00:07,167 INFO L93 Difference]: Finished difference Result 1000 states and 1347 transitions. [2024-11-28 03:00:07,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-28 03:00:07,169 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 6.454545454545454) internal successors, (71), 11 states have internal predecessors, (71), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 73 [2024-11-28 03:00:07,169 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:00:07,173 INFO L225 Difference]: With dead ends: 1000 [2024-11-28 03:00:07,173 INFO L226 Difference]: Without dead ends: 528 [2024-11-28 03:00:07,174 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2024-11-28 03:00:07,175 INFO L435 NwaCegarLoop]: 564 mSDtfsCounter, 26 mSDsluCounter, 4594 mSDsCounter, 0 mSdLazyCounter, 751 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 5158 SdHoareTripleChecker+Invalid, 752 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 751 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-28 03:00:07,176 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 5158 Invalid, 752 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 751 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-28 03:00:07,178 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 528 states. [2024-11-28 03:00:07,199 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 528 to 518. [2024-11-28 03:00:07,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 518 states, 495 states have (on average 1.3353535353535353) internal successors, (661), 499 states have internal predecessors, (661), 15 states have call successors, (15), 4 states have call predecessors, (15), 4 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-11-28 03:00:07,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 518 states to 518 states and 691 transitions. [2024-11-28 03:00:07,206 INFO L78 Accepts]: Start accepts. Automaton has 518 states and 691 transitions. Word has length 73 [2024-11-28 03:00:07,206 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:00:07,206 INFO L471 AbstractCegarLoop]: Abstraction has 518 states and 691 transitions. [2024-11-28 03:00:07,206 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 6.454545454545454) internal successors, (71), 11 states have internal predecessors, (71), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:00:07,206 INFO L276 IsEmpty]: Start isEmpty. Operand 518 states and 691 transitions. [2024-11-28 03:00:07,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2024-11-28 03:00:07,207 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:00:07,207 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:00:07,208 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-28 03:00:07,208 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [alt_freeErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-28 03:00:07,209 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:00:07,209 INFO L85 PathProgramCache]: Analyzing trace with hash -2052314550, now seen corresponding path program 1 times [2024-11-28 03:00:07,209 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:00:07,209 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [267025645] [2024-11-28 03:00:07,209 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:00:07,209 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:00:07,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:00:08,038 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:00:08,038 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:00:08,039 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [267025645] [2024-11-28 03:00:08,039 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [267025645] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:00:08,040 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:00:08,040 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-28 03:00:08,040 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [658700505] [2024-11-28 03:00:08,040 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:00:08,041 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-28 03:00:08,041 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:00:08,042 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-28 03:00:08,042 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2024-11-28 03:00:08,042 INFO L87 Difference]: Start difference. First operand 518 states and 691 transitions. Second operand has 10 states, 10 states have (on average 7.1) internal successors, (71), 10 states have internal predecessors, (71), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:00:12,602 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-28 03:00:13,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:00:13,493 INFO L93 Difference]: Finished difference Result 1009 states and 1353 transitions. [2024-11-28 03:00:13,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-28 03:00:13,494 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 7.1) internal successors, (71), 10 states have internal predecessors, (71), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 73 [2024-11-28 03:00:13,494 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:00:13,497 INFO L225 Difference]: With dead ends: 1009 [2024-11-28 03:00:13,497 INFO L226 Difference]: Without dead ends: 534 [2024-11-28 03:00:13,498 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=39, Invalid=171, Unknown=0, NotChecked=0, Total=210 [2024-11-28 03:00:13,499 INFO L435 NwaCegarLoop]: 568 mSDtfsCounter, 43 mSDsluCounter, 4006 mSDsCounter, 0 mSdLazyCounter, 700 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 4574 SdHoareTripleChecker+Invalid, 706 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 700 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2024-11-28 03:00:13,499 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 4574 Invalid, 706 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 700 Invalid, 1 Unknown, 0 Unchecked, 5.2s Time] [2024-11-28 03:00:13,500 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 534 states. [2024-11-28 03:00:13,517 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 534 to 519. [2024-11-28 03:00:13,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 519 states, 496 states have (on average 1.3346774193548387) internal successors, (662), 500 states have internal predecessors, (662), 15 states have call successors, (15), 4 states have call predecessors, (15), 4 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-11-28 03:00:13,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 519 states to 519 states and 692 transitions. [2024-11-28 03:00:13,522 INFO L78 Accepts]: Start accepts. Automaton has 519 states and 692 transitions. Word has length 73 [2024-11-28 03:00:13,522 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:00:13,522 INFO L471 AbstractCegarLoop]: Abstraction has 519 states and 692 transitions. [2024-11-28 03:00:13,522 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.1) internal successors, (71), 10 states have internal predecessors, (71), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:00:13,522 INFO L276 IsEmpty]: Start isEmpty. Operand 519 states and 692 transitions. [2024-11-28 03:00:13,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2024-11-28 03:00:13,523 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:00:13,523 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:00:13,523 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-28 03:00:13,524 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [alt_freeErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-28 03:00:13,524 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:00:13,524 INFO L85 PathProgramCache]: Analyzing trace with hash -196801378, now seen corresponding path program 1 times [2024-11-28 03:00:13,524 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:00:13,524 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [930325220] [2024-11-28 03:00:13,524 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:00:13,525 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:00:13,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:00:42,390 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse1 (* (div |c_ULTIMATE.start_main_~_hj_j~0#1| 4294967296) 524288)) (.cse0 (div |c_ULTIMATE.start_main_~_hj_j~0#1| 8192))) (and (= .cse0 (+ .cse1 |c_ULTIMATE.start_main_~_ha_hashv~0#1|)) (<= 4408680405129836981 (+ (* 1030789530 |c_ULTIMATE.start_main_~_ha_hashv~0#1|) (* |c_ULTIMATE.start_main_~_hj_j~0#1| 2061579059) (* (div (+ (* (- 4123158118) |c_ULTIMATE.start_main_~_hj_j~0#1|) 8817360810260198248 .cse1 (* (- 2061579059) |c_ULTIMATE.start_main_~_ha_hashv~0#1|) (* (- 1) .cse0)) 4294967296) 2147483648))))) is different from false [2024-11-28 03:00:43,255 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:00:43,255 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:00:43,255 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [930325220] [2024-11-28 03:00:43,255 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [930325220] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:00:43,255 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:00:43,255 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-28 03:00:43,255 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1817234102] [2024-11-28 03:00:43,255 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:00:43,257 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-28 03:00:43,258 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:00:43,258 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-28 03:00:43,258 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=71, Unknown=2, NotChecked=16, Total=110 [2024-11-28 03:00:43,259 INFO L87 Difference]: Start difference. First operand 519 states and 692 transitions. Second operand has 11 states, 11 states have (on average 6.454545454545454) internal successors, (71), 11 states have internal predecessors, (71), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:00:47,703 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-28 03:00:51,706 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-28 03:00:53,249 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.54s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-28 03:00:57,350 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-28 03:01:01,363 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse1 (div |c_ULTIMATE.start_main_~_hj_j~0#1| 8192)) (.cse3 (* (div |c_ULTIMATE.start_main_~_hj_j~0#1| 4294967296) 524288))) (let ((.cse0 (+ .cse3 |c_ULTIMATE.start_main_~_ha_hashv~0#1|)) (.cse6 (* 1030789530 |c_ULTIMATE.start_main_~_ha_hashv~0#1|)) (.cse7 (* |c_ULTIMATE.start_main_~_hj_j~0#1| 2061579059)) (.cse2 (* (- 4123158118) |c_ULTIMATE.start_main_~_hj_j~0#1|)) (.cse4 (* (- 2061579059) |c_ULTIMATE.start_main_~_ha_hashv~0#1|)) (.cse5 (* (- 1) .cse1))) (and (or (< .cse0 (+ .cse1 (mod |c_ULTIMATE.start_main_~_hj_i~0#1| 4294967296))) (< 4408680405129836980 (+ (* 1030789529 |c_ULTIMATE.start_main_~_hj_i~0#1|) (* 2147483648 (div (+ .cse2 8817360810260198248 (* (- 2061579059) |c_ULTIMATE.start_main_~_hj_i~0#1|) .cse3 .cse4 .cse5) 4294967296)) .cse6 .cse7 (* (div |c_ULTIMATE.start_main_~_hj_i~0#1| 4294967296) 2147483648)))) (= .cse1 .cse0) (<= 4408680405129836981 (+ .cse6 .cse7 (* (div (+ .cse2 8817360810260198248 .cse3 .cse4 .cse5) 4294967296) 2147483648)))))) is different from false [2024-11-28 03:01:03,808 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.89s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-28 03:01:08,075 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-28 03:01:12,083 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-28 03:01:16,094 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-28 03:01:20,098 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-28 03:01:24,508 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-28 03:01:28,517 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-28 03:01:32,537 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-28 03:01:36,572 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-28 03:01:40,581 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-28 03:02:01,996 WARN L286 SmtUtils]: Spent 20.05s on a formula simplification. DAG size of input: 42 DAG size of output: 41 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-28 03:02:06,185 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-28 03:02:10,188 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-28 03:02:14,191 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-28 03:02:18,193 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-28 03:02:20,654 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.46s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-28 03:02:24,656 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-28 03:02:28,659 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-28 03:02:29,335 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:02:29,336 INFO L93 Difference]: Finished difference Result 1022 states and 1379 transitions. [2024-11-28 03:02:29,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-28 03:02:29,337 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 6.454545454545454) internal successors, (71), 11 states have internal predecessors, (71), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 73 [2024-11-28 03:02:29,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:02:29,341 INFO L225 Difference]: With dead ends: 1022 [2024-11-28 03:02:29,341 INFO L226 Difference]: Without dead ends: 546 [2024-11-28 03:02:29,343 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 38.4s TimeCoverageRelationStatistics Valid=27, Invalid=88, Unknown=3, NotChecked=38, Total=156 [2024-11-28 03:02:29,345 INFO L435 NwaCegarLoop]: 568 mSDtfsCounter, 52 mSDsluCounter, 3525 mSDsCounter, 0 mSdLazyCounter, 695 mSolverCounterSat, 3 mSolverCounterUnsat, 18 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 80.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 4093 SdHoareTripleChecker+Invalid, 871 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 695 IncrementalHoareTripleChecker+Invalid, 18 IncrementalHoareTripleChecker+Unknown, 155 IncrementalHoareTripleChecker+Unchecked, 80.6s IncrementalHoareTripleChecker+Time [2024-11-28 03:02:29,345 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [52 Valid, 4093 Invalid, 871 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 695 Invalid, 18 Unknown, 155 Unchecked, 80.6s Time] [2024-11-28 03:02:29,348 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 546 states. [2024-11-28 03:02:29,367 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 546 to 525. [2024-11-28 03:02:29,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 525 states, 502 states have (on average 1.3346613545816732) internal successors, (670), 506 states have internal predecessors, (670), 15 states have call successors, (15), 4 states have call predecessors, (15), 4 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-11-28 03:02:29,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 525 states to 525 states and 700 transitions. [2024-11-28 03:02:29,372 INFO L78 Accepts]: Start accepts. Automaton has 525 states and 700 transitions. Word has length 73 [2024-11-28 03:02:29,373 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:02:29,373 INFO L471 AbstractCegarLoop]: Abstraction has 525 states and 700 transitions. [2024-11-28 03:02:29,373 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 6.454545454545454) internal successors, (71), 11 states have internal predecessors, (71), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:02:29,373 INFO L276 IsEmpty]: Start isEmpty. Operand 525 states and 700 transitions. [2024-11-28 03:02:29,374 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2024-11-28 03:02:29,374 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:02:29,374 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:02:29,375 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-28 03:02:29,375 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [alt_freeErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-28 03:02:29,375 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:02:29,376 INFO L85 PathProgramCache]: Analyzing trace with hash 406189826, now seen corresponding path program 1 times [2024-11-28 03:02:29,376 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:02:29,376 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1108649178] [2024-11-28 03:02:29,376 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:02:29,376 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:02:29,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:02:29,772 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:02:29,772 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:02:29,772 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1108649178] [2024-11-28 03:02:29,772 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1108649178] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:02:29,772 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:02:29,773 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-28 03:02:29,773 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [31654087] [2024-11-28 03:02:29,773 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:02:29,773 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-28 03:02:29,774 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:02:29,774 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-28 03:02:29,774 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-28 03:02:29,775 INFO L87 Difference]: Start difference. First operand 525 states and 700 transitions. Second operand has 9 states, 9 states have (on average 7.888888888888889) internal successors, (71), 9 states have internal predecessors, (71), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:02:30,635 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:02:30,635 INFO L93 Difference]: Finished difference Result 1028 states and 1378 transitions. [2024-11-28 03:02:30,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-28 03:02:30,638 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.888888888888889) internal successors, (71), 9 states have internal predecessors, (71), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 73 [2024-11-28 03:02:30,638 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:02:30,641 INFO L225 Difference]: With dead ends: 1028 [2024-11-28 03:02:30,641 INFO L226 Difference]: Without dead ends: 546 [2024-11-28 03:02:30,642 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2024-11-28 03:02:30,645 INFO L435 NwaCegarLoop]: 575 mSDtfsCounter, 34 mSDsluCounter, 3527 mSDsCounter, 0 mSdLazyCounter, 617 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 4102 SdHoareTripleChecker+Invalid, 619 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 617 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-28 03:02:30,645 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 4102 Invalid, 619 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 617 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-28 03:02:30,647 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 546 states. [2024-11-28 03:02:30,667 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 546 to 522. [2024-11-28 03:02:30,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 522 states, 499 states have (on average 1.3366733466933867) internal successors, (667), 503 states have internal predecessors, (667), 15 states have call successors, (15), 4 states have call predecessors, (15), 4 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-11-28 03:02:30,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 522 states to 522 states and 697 transitions. [2024-11-28 03:02:30,671 INFO L78 Accepts]: Start accepts. Automaton has 522 states and 697 transitions. Word has length 73 [2024-11-28 03:02:30,671 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:02:30,671 INFO L471 AbstractCegarLoop]: Abstraction has 522 states and 697 transitions. [2024-11-28 03:02:30,671 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.888888888888889) internal successors, (71), 9 states have internal predecessors, (71), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:02:30,671 INFO L276 IsEmpty]: Start isEmpty. Operand 522 states and 697 transitions. [2024-11-28 03:02:30,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2024-11-28 03:02:30,672 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:02:30,672 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:02:30,672 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-28 03:02:30,673 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [alt_freeErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-28 03:02:30,674 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:02:30,674 INFO L85 PathProgramCache]: Analyzing trace with hash -461858095, now seen corresponding path program 1 times [2024-11-28 03:02:30,674 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:02:30,674 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1529343242] [2024-11-28 03:02:30,674 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:02:30,674 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:02:30,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:02:31,197 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:02:31,197 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:02:31,197 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1529343242] [2024-11-28 03:02:31,198 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1529343242] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:02:31,198 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:02:31,198 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-28 03:02:31,198 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1711001684] [2024-11-28 03:02:31,198 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:02:31,198 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-28 03:02:31,198 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:02:31,199 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-28 03:02:31,199 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=110, Unknown=0, NotChecked=0, Total=132 [2024-11-28 03:02:31,199 INFO L87 Difference]: Start difference. First operand 522 states and 697 transitions. Second operand has 12 states, 12 states have (on average 6.0) internal successors, (72), 12 states have internal predecessors, (72), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:02:32,145 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:02:32,145 INFO L93 Difference]: Finished difference Result 1013 states and 1365 transitions. [2024-11-28 03:02:32,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-28 03:02:32,146 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 6.0) internal successors, (72), 12 states have internal predecessors, (72), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 74 [2024-11-28 03:02:32,146 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:02:32,149 INFO L225 Difference]: With dead ends: 1013 [2024-11-28 03:02:32,149 INFO L226 Difference]: Without dead ends: 534 [2024-11-28 03:02:32,150 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2024-11-28 03:02:32,151 INFO L435 NwaCegarLoop]: 567 mSDtfsCounter, 16 mSDsluCounter, 4562 mSDsCounter, 0 mSdLazyCounter, 864 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 5129 SdHoareTripleChecker+Invalid, 866 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 864 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-28 03:02:32,151 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 5129 Invalid, 866 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 864 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-28 03:02:32,153 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 534 states. [2024-11-28 03:02:32,168 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 534 to 529. [2024-11-28 03:02:32,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 529 states, 506 states have (on average 1.3359683794466404) internal successors, (676), 510 states have internal predecessors, (676), 15 states have call successors, (15), 4 states have call predecessors, (15), 4 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-11-28 03:02:32,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 529 states to 529 states and 706 transitions. [2024-11-28 03:02:32,172 INFO L78 Accepts]: Start accepts. Automaton has 529 states and 706 transitions. Word has length 74 [2024-11-28 03:02:32,172 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:02:32,172 INFO L471 AbstractCegarLoop]: Abstraction has 529 states and 706 transitions. [2024-11-28 03:02:32,173 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 6.0) internal successors, (72), 12 states have internal predecessors, (72), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:02:32,173 INFO L276 IsEmpty]: Start isEmpty. Operand 529 states and 706 transitions. [2024-11-28 03:02:32,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2024-11-28 03:02:32,174 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:02:32,174 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:02:32,174 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-28 03:02:32,174 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [alt_freeErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-28 03:02:32,175 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:02:32,175 INFO L85 PathProgramCache]: Analyzing trace with hash 1123238857, now seen corresponding path program 1 times [2024-11-28 03:02:32,175 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:02:32,175 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [538025988] [2024-11-28 03:02:32,175 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:02:32,175 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:02:32,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:02:32,551 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:02:32,551 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:02:32,551 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [538025988] [2024-11-28 03:02:32,551 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [538025988] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:02:32,551 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:02:32,551 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-28 03:02:32,551 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1196807638] [2024-11-28 03:02:32,552 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:02:32,552 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-28 03:02:32,552 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:02:32,552 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-28 03:02:32,553 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-28 03:02:32,553 INFO L87 Difference]: Start difference. First operand 529 states and 706 transitions. Second operand has 9 states, 9 states have (on average 8.0) internal successors, (72), 9 states have internal predecessors, (72), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:02:33,341 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:02:33,341 INFO L93 Difference]: Finished difference Result 1020 states and 1373 transitions. [2024-11-28 03:02:33,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-28 03:02:33,342 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.0) internal successors, (72), 9 states have internal predecessors, (72), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 74 [2024-11-28 03:02:33,342 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:02:33,345 INFO L225 Difference]: With dead ends: 1020 [2024-11-28 03:02:33,345 INFO L226 Difference]: Without dead ends: 534 [2024-11-28 03:02:33,347 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2024-11-28 03:02:33,347 INFO L435 NwaCegarLoop]: 571 mSDtfsCounter, 24 mSDsluCounter, 3585 mSDsCounter, 0 mSdLazyCounter, 553 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 4156 SdHoareTripleChecker+Invalid, 555 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 553 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-28 03:02:33,348 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 4156 Invalid, 555 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 553 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-28 03:02:33,349 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 534 states. [2024-11-28 03:02:33,368 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 534 to 526. [2024-11-28 03:02:33,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 526 states, 503 states have (on average 1.3359840954274353) internal successors, (672), 507 states have internal predecessors, (672), 15 states have call successors, (15), 4 states have call predecessors, (15), 4 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-11-28 03:02:33,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 526 states to 526 states and 702 transitions. [2024-11-28 03:02:33,372 INFO L78 Accepts]: Start accepts. Automaton has 526 states and 702 transitions. Word has length 74 [2024-11-28 03:02:33,372 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:02:33,373 INFO L471 AbstractCegarLoop]: Abstraction has 526 states and 702 transitions. [2024-11-28 03:02:33,373 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.0) internal successors, (72), 9 states have internal predecessors, (72), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:02:33,373 INFO L276 IsEmpty]: Start isEmpty. Operand 526 states and 702 transitions. [2024-11-28 03:02:33,374 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2024-11-28 03:02:33,374 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:02:33,374 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:02:33,374 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-28 03:02:33,375 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [alt_freeErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-28 03:02:33,375 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:02:33,375 INFO L85 PathProgramCache]: Analyzing trace with hash 1421328295, now seen corresponding path program 1 times [2024-11-28 03:02:33,375 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:02:33,375 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [981765003] [2024-11-28 03:02:33,376 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:02:33,376 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:02:33,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:02:33,690 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:02:33,690 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:02:33,691 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [981765003] [2024-11-28 03:02:33,691 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [981765003] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:02:33,691 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:02:33,691 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-28 03:02:33,691 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1461937347] [2024-11-28 03:02:33,691 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:02:33,691 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-28 03:02:33,691 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:02:33,692 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-28 03:02:33,692 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-28 03:02:33,692 INFO L87 Difference]: Start difference. First operand 526 states and 702 transitions. Second operand has 7 states, 7 states have (on average 10.285714285714286) internal successors, (72), 7 states have internal predecessors, (72), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:02:34,141 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:02:34,141 INFO L93 Difference]: Finished difference Result 1010 states and 1358 transitions. [2024-11-28 03:02:34,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-28 03:02:34,143 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.285714285714286) internal successors, (72), 7 states have internal predecessors, (72), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 74 [2024-11-28 03:02:34,143 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:02:34,146 INFO L225 Difference]: With dead ends: 1010 [2024-11-28 03:02:34,146 INFO L226 Difference]: Without dead ends: 527 [2024-11-28 03:02:34,147 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-11-28 03:02:34,148 INFO L435 NwaCegarLoop]: 574 mSDtfsCounter, 53 mSDsluCounter, 2565 mSDsCounter, 0 mSdLazyCounter, 343 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 3139 SdHoareTripleChecker+Invalid, 344 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 343 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-28 03:02:34,148 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [53 Valid, 3139 Invalid, 344 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 343 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-28 03:02:34,150 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 527 states. [2024-11-28 03:02:34,166 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 527 to 523. [2024-11-28 03:02:34,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 523 states, 500 states have (on average 1.336) internal successors, (668), 504 states have internal predecessors, (668), 15 states have call successors, (15), 4 states have call predecessors, (15), 4 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-11-28 03:02:34,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 523 states to 523 states and 698 transitions. [2024-11-28 03:02:34,174 INFO L78 Accepts]: Start accepts. Automaton has 523 states and 698 transitions. Word has length 74 [2024-11-28 03:02:34,174 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:02:34,174 INFO L471 AbstractCegarLoop]: Abstraction has 523 states and 698 transitions. [2024-11-28 03:02:34,174 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.285714285714286) internal successors, (72), 7 states have internal predecessors, (72), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:02:34,174 INFO L276 IsEmpty]: Start isEmpty. Operand 523 states and 698 transitions. [2024-11-28 03:02:34,175 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2024-11-28 03:02:34,176 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:02:34,176 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:02:34,176 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-11-28 03:02:34,177 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [alt_freeErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-28 03:02:34,177 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:02:34,177 INFO L85 PathProgramCache]: Analyzing trace with hash 1089395943, now seen corresponding path program 1 times [2024-11-28 03:02:34,177 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:02:34,177 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2119271906] [2024-11-28 03:02:34,177 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:02:34,178 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:02:34,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:02:34,715 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:02:34,715 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:02:34,715 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2119271906] [2024-11-28 03:02:34,716 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2119271906] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:02:34,716 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:02:34,716 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-28 03:02:34,716 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [290735739] [2024-11-28 03:02:34,716 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:02:34,716 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-28 03:02:34,717 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:02:34,717 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-28 03:02:34,717 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2024-11-28 03:02:34,718 INFO L87 Difference]: Start difference. First operand 523 states and 698 transitions. Second operand has 12 states, 12 states have (on average 6.0) internal successors, (72), 12 states have internal predecessors, (72), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:02:35,720 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:02:35,721 INFO L93 Difference]: Finished difference Result 1019 states and 1374 transitions. [2024-11-28 03:02:35,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-28 03:02:35,722 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 6.0) internal successors, (72), 12 states have internal predecessors, (72), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 74 [2024-11-28 03:02:35,722 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:02:35,725 INFO L225 Difference]: With dead ends: 1019 [2024-11-28 03:02:35,725 INFO L226 Difference]: Without dead ends: 539 [2024-11-28 03:02:35,726 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=25, Invalid=131, Unknown=0, NotChecked=0, Total=156 [2024-11-28 03:02:35,727 INFO L435 NwaCegarLoop]: 550 mSDtfsCounter, 18 mSDsluCounter, 5019 mSDsCounter, 0 mSdLazyCounter, 884 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 5569 SdHoareTripleChecker+Invalid, 885 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 884 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-28 03:02:35,728 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 5569 Invalid, 885 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 884 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-28 03:02:35,730 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 539 states. [2024-11-28 03:02:35,747 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 539 to 524. [2024-11-28 03:02:35,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 524 states, 501 states have (on average 1.3353293413173652) internal successors, (669), 505 states have internal predecessors, (669), 15 states have call successors, (15), 4 states have call predecessors, (15), 4 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-11-28 03:02:35,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 524 states to 524 states and 699 transitions. [2024-11-28 03:02:35,766 INFO L78 Accepts]: Start accepts. Automaton has 524 states and 699 transitions. Word has length 74 [2024-11-28 03:02:35,766 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:02:35,766 INFO L471 AbstractCegarLoop]: Abstraction has 524 states and 699 transitions. [2024-11-28 03:02:35,767 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 6.0) internal successors, (72), 12 states have internal predecessors, (72), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:02:35,767 INFO L276 IsEmpty]: Start isEmpty. Operand 524 states and 699 transitions. [2024-11-28 03:02:35,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2024-11-28 03:02:35,768 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:02:35,768 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:02:35,768 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-11-28 03:02:35,768 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [alt_freeErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-28 03:02:35,769 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:02:35,769 INFO L85 PathProgramCache]: Analyzing trace with hash -1971731707, now seen corresponding path program 1 times [2024-11-28 03:02:35,769 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:02:35,769 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [464899493] [2024-11-28 03:02:35,769 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:02:35,769 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:02:35,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:02:36,426 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:02:36,427 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:02:36,427 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [464899493] [2024-11-28 03:02:36,427 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [464899493] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:02:36,427 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:02:36,427 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-28 03:02:36,427 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2002591554] [2024-11-28 03:02:36,428 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:02:36,428 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-28 03:02:36,428 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:02:36,428 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-28 03:02:36,429 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=133, Unknown=0, NotChecked=0, Total=156 [2024-11-28 03:02:36,429 INFO L87 Difference]: Start difference. First operand 524 states and 699 transitions. Second operand has 13 states, 13 states have (on average 5.538461538461538) internal successors, (72), 13 states have internal predecessors, (72), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:02:37,617 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:02:37,617 INFO L93 Difference]: Finished difference Result 1037 states and 1394 transitions. [2024-11-28 03:02:37,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-28 03:02:37,618 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 5.538461538461538) internal successors, (72), 13 states have internal predecessors, (72), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 74 [2024-11-28 03:02:37,618 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:02:37,621 INFO L225 Difference]: With dead ends: 1037 [2024-11-28 03:02:37,621 INFO L226 Difference]: Without dead ends: 556 [2024-11-28 03:02:37,622 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=31, Invalid=179, Unknown=0, NotChecked=0, Total=210 [2024-11-28 03:02:37,623 INFO L435 NwaCegarLoop]: 559 mSDtfsCounter, 47 mSDsluCounter, 5570 mSDsCounter, 0 mSdLazyCounter, 1052 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 6129 SdHoareTripleChecker+Invalid, 1053 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1052 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-28 03:02:37,623 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 6129 Invalid, 1053 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1052 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-28 03:02:37,626 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 556 states. [2024-11-28 03:02:37,642 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 556 to 533. [2024-11-28 03:02:37,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 533 states, 510 states have (on average 1.3352941176470587) internal successors, (681), 514 states have internal predecessors, (681), 15 states have call successors, (15), 4 states have call predecessors, (15), 4 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-11-28 03:02:37,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 533 states to 533 states and 711 transitions. [2024-11-28 03:02:37,646 INFO L78 Accepts]: Start accepts. Automaton has 533 states and 711 transitions. Word has length 74 [2024-11-28 03:02:37,646 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:02:37,646 INFO L471 AbstractCegarLoop]: Abstraction has 533 states and 711 transitions. [2024-11-28 03:02:37,646 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 5.538461538461538) internal successors, (72), 13 states have internal predecessors, (72), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:02:37,647 INFO L276 IsEmpty]: Start isEmpty. Operand 533 states and 711 transitions. [2024-11-28 03:02:37,648 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2024-11-28 03:02:37,649 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:02:37,649 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:02:37,649 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-11-28 03:02:37,649 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [alt_freeErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-28 03:02:37,650 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:02:37,650 INFO L85 PathProgramCache]: Analyzing trace with hash -1124895847, now seen corresponding path program 1 times [2024-11-28 03:02:37,650 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:02:37,650 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1007352955] [2024-11-28 03:02:37,650 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:02:37,650 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:02:37,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:02:38,770 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:02:38,772 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:02:38,772 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1007352955] [2024-11-28 03:02:38,772 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1007352955] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:02:38,772 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:02:38,772 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-28 03:02:38,773 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [866902297] [2024-11-28 03:02:38,773 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:02:38,773 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-28 03:02:38,773 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:02:38,774 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-28 03:02:38,774 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2024-11-28 03:02:38,774 INFO L87 Difference]: Start difference. First operand 533 states and 711 transitions. Second operand has 11 states, 11 states have (on average 6.545454545454546) internal successors, (72), 11 states have internal predecessors, (72), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:02:41,750 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:02:41,750 INFO L93 Difference]: Finished difference Result 1095 states and 1476 transitions. [2024-11-28 03:02:41,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-28 03:02:41,751 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 6.545454545454546) internal successors, (72), 11 states have internal predecessors, (72), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 74 [2024-11-28 03:02:41,752 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:02:41,755 INFO L225 Difference]: With dead ends: 1095 [2024-11-28 03:02:41,755 INFO L226 Difference]: Without dead ends: 605 [2024-11-28 03:02:41,756 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2024-11-28 03:02:41,757 INFO L435 NwaCegarLoop]: 633 mSDtfsCounter, 112 mSDsluCounter, 4573 mSDsCounter, 0 mSdLazyCounter, 925 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 5206 SdHoareTripleChecker+Invalid, 932 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 925 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2024-11-28 03:02:41,758 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [115 Valid, 5206 Invalid, 932 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 925 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2024-11-28 03:02:41,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 605 states. [2024-11-28 03:02:41,779 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 605 to 534. [2024-11-28 03:02:41,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 534 states, 511 states have (on average 1.3365949119373777) internal successors, (683), 515 states have internal predecessors, (683), 15 states have call successors, (15), 4 states have call predecessors, (15), 4 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-11-28 03:02:41,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 534 states to 534 states and 713 transitions. [2024-11-28 03:02:41,783 INFO L78 Accepts]: Start accepts. Automaton has 534 states and 713 transitions. Word has length 74 [2024-11-28 03:02:41,783 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:02:41,784 INFO L471 AbstractCegarLoop]: Abstraction has 534 states and 713 transitions. [2024-11-28 03:02:41,784 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 6.545454545454546) internal successors, (72), 11 states have internal predecessors, (72), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:02:41,784 INFO L276 IsEmpty]: Start isEmpty. Operand 534 states and 713 transitions. [2024-11-28 03:02:41,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2024-11-28 03:02:41,785 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:02:41,785 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:02:41,785 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-11-28 03:02:41,785 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [alt_freeErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-28 03:02:41,786 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:02:41,786 INFO L85 PathProgramCache]: Analyzing trace with hash 935546669, now seen corresponding path program 1 times [2024-11-28 03:02:41,786 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:02:41,786 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [274676881] [2024-11-28 03:02:41,786 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:02:41,787 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:02:41,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:02:42,449 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:02:42,450 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:02:42,450 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [274676881] [2024-11-28 03:02:42,450 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [274676881] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:02:42,450 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:02:42,450 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-28 03:02:42,450 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [375964503] [2024-11-28 03:02:42,450 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:02:42,451 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-28 03:02:42,451 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:02:42,451 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-28 03:02:42,451 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-28 03:02:42,452 INFO L87 Difference]: Start difference. First operand 534 states and 713 transitions. Second operand has 9 states, 9 states have (on average 8.0) internal successors, (72), 9 states have internal predecessors, (72), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:02:44,634 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.79s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-28 03:02:48,662 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-28 03:02:53,490 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-28 03:02:57,494 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-28 03:03:01,497 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-28 03:03:05,500 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-28 03:03:09,505 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-28 03:03:10,579 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:03:10,580 INFO L93 Difference]: Finished difference Result 1046 states and 1409 transitions. [2024-11-28 03:03:10,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-28 03:03:10,580 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.0) internal successors, (72), 9 states have internal predecessors, (72), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 74 [2024-11-28 03:03:10,581 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:03:10,584 INFO L225 Difference]: With dead ends: 1046 [2024-11-28 03:03:10,584 INFO L226 Difference]: Without dead ends: 555 [2024-11-28 03:03:10,585 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2024-11-28 03:03:10,586 INFO L435 NwaCegarLoop]: 557 mSDtfsCounter, 82 mSDsluCounter, 3508 mSDsCounter, 0 mSdLazyCounter, 638 mSolverCounterSat, 9 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 27.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 82 SdHoareTripleChecker+Valid, 4065 SdHoareTripleChecker+Invalid, 653 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 638 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 27.6s IncrementalHoareTripleChecker+Time [2024-11-28 03:03:10,586 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [82 Valid, 4065 Invalid, 653 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 638 Invalid, 6 Unknown, 0 Unchecked, 27.6s Time] [2024-11-28 03:03:10,588 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 555 states. [2024-11-28 03:03:10,606 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 555 to 534. [2024-11-28 03:03:10,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 534 states, 511 states have (on average 1.3365949119373777) internal successors, (683), 515 states have internal predecessors, (683), 15 states have call successors, (15), 4 states have call predecessors, (15), 4 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-11-28 03:03:10,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 534 states to 534 states and 713 transitions. [2024-11-28 03:03:10,611 INFO L78 Accepts]: Start accepts. Automaton has 534 states and 713 transitions. Word has length 74 [2024-11-28 03:03:10,611 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:03:10,611 INFO L471 AbstractCegarLoop]: Abstraction has 534 states and 713 transitions. [2024-11-28 03:03:10,611 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.0) internal successors, (72), 9 states have internal predecessors, (72), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:03:10,611 INFO L276 IsEmpty]: Start isEmpty. Operand 534 states and 713 transitions. [2024-11-28 03:03:10,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2024-11-28 03:03:10,612 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:03:10,613 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:03:10,613 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2024-11-28 03:03:10,613 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [alt_freeErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-28 03:03:10,613 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:03:10,614 INFO L85 PathProgramCache]: Analyzing trace with hash 1040881089, now seen corresponding path program 1 times [2024-11-28 03:03:10,614 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:03:10,614 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1776248631] [2024-11-28 03:03:10,614 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:03:10,614 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:03:10,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:03:11,014 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:03:11,015 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:03:11,015 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1776248631] [2024-11-28 03:03:11,015 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1776248631] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:03:11,015 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:03:11,015 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-28 03:03:11,016 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [647445089] [2024-11-28 03:03:11,016 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:03:11,017 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-28 03:03:11,017 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:03:11,018 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-28 03:03:11,018 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-28 03:03:11,018 INFO L87 Difference]: Start difference. First operand 534 states and 713 transitions. Second operand has 7 states, 7 states have (on average 10.285714285714286) internal successors, (72), 7 states have internal predecessors, (72), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:03:11,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:03:11,885 INFO L93 Difference]: Finished difference Result 1059 states and 1421 transitions. [2024-11-28 03:03:11,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-28 03:03:11,886 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.285714285714286) internal successors, (72), 7 states have internal predecessors, (72), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 74 [2024-11-28 03:03:11,886 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:03:11,889 INFO L225 Difference]: With dead ends: 1059 [2024-11-28 03:03:11,890 INFO L226 Difference]: Without dead ends: 568 [2024-11-28 03:03:11,891 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156 [2024-11-28 03:03:11,896 INFO L435 NwaCegarLoop]: 571 mSDtfsCounter, 99 mSDsluCounter, 2513 mSDsCounter, 0 mSdLazyCounter, 470 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 99 SdHoareTripleChecker+Valid, 3084 SdHoareTripleChecker+Invalid, 484 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 470 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-28 03:03:11,896 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [99 Valid, 3084 Invalid, 484 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 470 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-28 03:03:11,897 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 568 states. [2024-11-28 03:03:11,917 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 568 to 530. [2024-11-28 03:03:11,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 530 states, 507 states have (on average 1.339250493096647) internal successors, (679), 511 states have internal predecessors, (679), 15 states have call successors, (15), 4 states have call predecessors, (15), 4 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-11-28 03:03:11,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 530 states to 530 states and 709 transitions. [2024-11-28 03:03:11,922 INFO L78 Accepts]: Start accepts. Automaton has 530 states and 709 transitions. Word has length 74 [2024-11-28 03:03:11,922 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:03:11,922 INFO L471 AbstractCegarLoop]: Abstraction has 530 states and 709 transitions. [2024-11-28 03:03:11,923 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.285714285714286) internal successors, (72), 7 states have internal predecessors, (72), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:03:11,923 INFO L276 IsEmpty]: Start isEmpty. Operand 530 states and 709 transitions. [2024-11-28 03:03:11,924 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2024-11-28 03:03:11,924 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:03:11,925 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:03:11,925 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2024-11-28 03:03:11,925 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [alt_freeErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-28 03:03:11,926 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:03:11,926 INFO L85 PathProgramCache]: Analyzing trace with hash -1846562487, now seen corresponding path program 1 times [2024-11-28 03:03:11,927 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:03:11,927 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [638106603] [2024-11-28 03:03:11,927 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:03:11,927 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:03:11,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:03:12,375 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:03:12,376 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:03:12,376 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [638106603] [2024-11-28 03:03:12,376 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [638106603] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:03:12,376 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:03:12,376 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-28 03:03:12,377 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1329984143] [2024-11-28 03:03:12,378 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:03:12,378 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-28 03:03:12,378 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:03:12,379 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-28 03:03:12,379 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-11-28 03:03:12,379 INFO L87 Difference]: Start difference. First operand 530 states and 709 transitions. Second operand has 10 states, 10 states have (on average 7.2) internal successors, (72), 10 states have internal predecessors, (72), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:03:13,814 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:03:13,814 INFO L93 Difference]: Finished difference Result 1036 states and 1394 transitions. [2024-11-28 03:03:13,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-28 03:03:13,815 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 7.2) internal successors, (72), 10 states have internal predecessors, (72), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 74 [2024-11-28 03:03:13,816 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:03:13,818 INFO L225 Difference]: With dead ends: 1036 [2024-11-28 03:03:13,819 INFO L226 Difference]: Without dead ends: 540 [2024-11-28 03:03:13,820 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-11-28 03:03:13,820 INFO L435 NwaCegarLoop]: 569 mSDtfsCounter, 12 mSDsluCounter, 4059 mSDsCounter, 0 mSdLazyCounter, 702 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 4628 SdHoareTripleChecker+Invalid, 702 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 702 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-28 03:03:13,821 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 4628 Invalid, 702 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 702 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-28 03:03:13,822 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 540 states. [2024-11-28 03:03:13,853 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 540 to 530. [2024-11-28 03:03:13,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 530 states, 507 states have (on average 1.339250493096647) internal successors, (679), 511 states have internal predecessors, (679), 15 states have call successors, (15), 4 states have call predecessors, (15), 4 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-11-28 03:03:13,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 530 states to 530 states and 709 transitions. [2024-11-28 03:03:13,856 INFO L78 Accepts]: Start accepts. Automaton has 530 states and 709 transitions. Word has length 74 [2024-11-28 03:03:13,857 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:03:13,857 INFO L471 AbstractCegarLoop]: Abstraction has 530 states and 709 transitions. [2024-11-28 03:03:13,857 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.2) internal successors, (72), 10 states have internal predecessors, (72), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:03:13,857 INFO L276 IsEmpty]: Start isEmpty. Operand 530 states and 709 transitions. [2024-11-28 03:03:13,858 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2024-11-28 03:03:13,858 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:03:13,858 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:03:13,858 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2024-11-28 03:03:13,859 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [alt_freeErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-28 03:03:13,859 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:03:13,859 INFO L85 PathProgramCache]: Analyzing trace with hash 1177135627, now seen corresponding path program 1 times [2024-11-28 03:03:13,859 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:03:13,859 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1953226168] [2024-11-28 03:03:13,860 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:03:13,860 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:03:13,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:03:14,742 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:03:14,743 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:03:14,743 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1953226168] [2024-11-28 03:03:14,743 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1953226168] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:03:14,743 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:03:14,743 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-28 03:03:14,743 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [789557268] [2024-11-28 03:03:14,744 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:03:14,744 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-28 03:03:14,744 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:03:14,745 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-28 03:03:14,746 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2024-11-28 03:03:14,746 INFO L87 Difference]: Start difference. First operand 530 states and 709 transitions. Second operand has 11 states, 11 states have (on average 6.636363636363637) internal successors, (73), 11 states have internal predecessors, (73), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:03:15,615 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:03:15,615 INFO L93 Difference]: Finished difference Result 1022 states and 1376 transitions. [2024-11-28 03:03:15,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-28 03:03:15,616 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 6.636363636363637) internal successors, (73), 11 states have internal predecessors, (73), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 75 [2024-11-28 03:03:15,616 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:03:15,619 INFO L225 Difference]: With dead ends: 1022 [2024-11-28 03:03:15,619 INFO L226 Difference]: Without dead ends: 526 [2024-11-28 03:03:15,620 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2024-11-28 03:03:15,621 INFO L435 NwaCegarLoop]: 563 mSDtfsCounter, 12 mSDsluCounter, 3512 mSDsCounter, 0 mSdLazyCounter, 586 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 4075 SdHoareTripleChecker+Invalid, 587 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 586 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-28 03:03:15,621 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 4075 Invalid, 587 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 586 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-28 03:03:15,624 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 526 states. [2024-11-28 03:03:15,639 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 526 to 516. [2024-11-28 03:03:15,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 516 states, 493 states have (on average 1.3427991886409736) internal successors, (662), 497 states have internal predecessors, (662), 15 states have call successors, (15), 4 states have call predecessors, (15), 4 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-11-28 03:03:15,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 516 states to 516 states and 692 transitions. [2024-11-28 03:03:15,643 INFO L78 Accepts]: Start accepts. Automaton has 516 states and 692 transitions. Word has length 75 [2024-11-28 03:03:15,647 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:03:15,647 INFO L471 AbstractCegarLoop]: Abstraction has 516 states and 692 transitions. [2024-11-28 03:03:15,647 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 6.636363636363637) internal successors, (73), 11 states have internal predecessors, (73), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:03:15,647 INFO L276 IsEmpty]: Start isEmpty. Operand 516 states and 692 transitions. [2024-11-28 03:03:15,648 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2024-11-28 03:03:15,648 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:03:15,648 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:03:15,648 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2024-11-28 03:03:15,648 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [alt_freeErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-28 03:03:15,649 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:03:15,649 INFO L85 PathProgramCache]: Analyzing trace with hash -1302510926, now seen corresponding path program 1 times [2024-11-28 03:03:15,649 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:03:15,649 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1156109048] [2024-11-28 03:03:15,649 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:03:15,649 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:03:15,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:03:16,083 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:03:16,083 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:03:16,083 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1156109048] [2024-11-28 03:03:16,084 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1156109048] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:03:16,084 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:03:16,084 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-28 03:03:16,084 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [488289035] [2024-11-28 03:03:16,084 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:03:16,084 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-28 03:03:16,085 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:03:16,085 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-28 03:03:16,086 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2024-11-28 03:03:16,086 INFO L87 Difference]: Start difference. First operand 516 states and 692 transitions. Second operand has 10 states, 10 states have (on average 7.3) internal successors, (73), 10 states have internal predecessors, (73), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:03:16,728 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:03:16,728 INFO L93 Difference]: Finished difference Result 1014 states and 1365 transitions. [2024-11-28 03:03:16,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-28 03:03:16,729 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 7.3) internal successors, (73), 10 states have internal predecessors, (73), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 75 [2024-11-28 03:03:16,729 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:03:16,732 INFO L225 Difference]: With dead ends: 1014 [2024-11-28 03:03:16,732 INFO L226 Difference]: Without dead ends: 532 [2024-11-28 03:03:16,732 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2024-11-28 03:03:16,733 INFO L435 NwaCegarLoop]: 564 mSDtfsCounter, 13 mSDsluCounter, 3564 mSDsCounter, 0 mSdLazyCounter, 583 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 4128 SdHoareTripleChecker+Invalid, 583 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 583 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-28 03:03:16,733 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 4128 Invalid, 583 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 583 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-28 03:03:16,734 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 532 states. [2024-11-28 03:03:16,749 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 532 to 527. [2024-11-28 03:03:16,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 527 states, 504 states have (on average 1.3373015873015872) internal successors, (674), 508 states have internal predecessors, (674), 15 states have call successors, (15), 4 states have call predecessors, (15), 4 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-11-28 03:03:16,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 527 states to 527 states and 704 transitions. [2024-11-28 03:03:16,755 INFO L78 Accepts]: Start accepts. Automaton has 527 states and 704 transitions. Word has length 75 [2024-11-28 03:03:16,759 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:03:16,759 INFO L471 AbstractCegarLoop]: Abstraction has 527 states and 704 transitions. [2024-11-28 03:03:16,759 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.3) internal successors, (73), 10 states have internal predecessors, (73), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:03:16,759 INFO L276 IsEmpty]: Start isEmpty. Operand 527 states and 704 transitions. [2024-11-28 03:03:16,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2024-11-28 03:03:16,760 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:03:16,760 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:03:16,760 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2024-11-28 03:03:16,760 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [alt_freeErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-28 03:03:16,761 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:03:16,761 INFO L85 PathProgramCache]: Analyzing trace with hash -1118575210, now seen corresponding path program 1 times [2024-11-28 03:03:16,761 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:03:16,761 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2069039570] [2024-11-28 03:03:16,761 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:03:16,761 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:03:16,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:03:17,258 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:03:17,259 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:03:17,259 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2069039570] [2024-11-28 03:03:17,259 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2069039570] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:03:17,259 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:03:17,259 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-28 03:03:17,259 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1597182777] [2024-11-28 03:03:17,260 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:03:17,260 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-28 03:03:17,261 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:03:17,261 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-28 03:03:17,261 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2024-11-28 03:03:17,261 INFO L87 Difference]: Start difference. First operand 527 states and 704 transitions. Second operand has 12 states, 12 states have (on average 6.083333333333333) internal successors, (73), 12 states have internal predecessors, (73), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:03:18,138 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:03:18,138 INFO L93 Difference]: Finished difference Result 1035 states and 1391 transitions. [2024-11-28 03:03:18,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-28 03:03:18,138 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 6.083333333333333) internal successors, (73), 12 states have internal predecessors, (73), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 75 [2024-11-28 03:03:18,139 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:03:18,141 INFO L225 Difference]: With dead ends: 1035 [2024-11-28 03:03:18,141 INFO L226 Difference]: Without dead ends: 542 [2024-11-28 03:03:18,142 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=25, Invalid=131, Unknown=0, NotChecked=0, Total=156 [2024-11-28 03:03:18,143 INFO L435 NwaCegarLoop]: 570 mSDtfsCounter, 17 mSDsluCounter, 5044 mSDsCounter, 0 mSdLazyCounter, 1012 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 5614 SdHoareTripleChecker+Invalid, 1013 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1012 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-28 03:03:18,143 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 5614 Invalid, 1013 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1012 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-28 03:03:18,144 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 542 states. [2024-11-28 03:03:18,159 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 542 to 532. [2024-11-28 03:03:18,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 532 states, 509 states have (on average 1.3359528487229861) internal successors, (680), 513 states have internal predecessors, (680), 15 states have call successors, (15), 4 states have call predecessors, (15), 4 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-11-28 03:03:18,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 532 states to 532 states and 710 transitions. [2024-11-28 03:03:18,162 INFO L78 Accepts]: Start accepts. Automaton has 532 states and 710 transitions. Word has length 75 [2024-11-28 03:03:18,162 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:03:18,162 INFO L471 AbstractCegarLoop]: Abstraction has 532 states and 710 transitions. [2024-11-28 03:03:18,163 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 6.083333333333333) internal successors, (73), 12 states have internal predecessors, (73), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:03:18,163 INFO L276 IsEmpty]: Start isEmpty. Operand 532 states and 710 transitions. [2024-11-28 03:03:18,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2024-11-28 03:03:18,164 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:03:18,164 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:03:18,164 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2024-11-28 03:03:18,164 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [alt_freeErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-28 03:03:18,165 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:03:18,165 INFO L85 PathProgramCache]: Analyzing trace with hash -754320420, now seen corresponding path program 1 times [2024-11-28 03:03:18,165 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:03:18,165 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [64878408] [2024-11-28 03:03:18,165 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:03:18,165 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:03:18,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:03:18,833 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:03:18,833 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:03:18,833 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [64878408] [2024-11-28 03:03:18,833 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [64878408] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:03:18,833 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:03:18,833 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-28 03:03:18,834 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1983512405] [2024-11-28 03:03:18,834 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:03:18,834 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-28 03:03:18,834 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:03:18,835 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-28 03:03:18,835 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=157, Unknown=0, NotChecked=0, Total=182 [2024-11-28 03:03:18,835 INFO L87 Difference]: Start difference. First operand 532 states and 710 transitions. Second operand has 14 states, 14 states have (on average 5.214285714285714) internal successors, (73), 14 states have internal predecessors, (73), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:03:21,179 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:03:21,179 INFO L93 Difference]: Finished difference Result 1053 states and 1414 transitions. [2024-11-28 03:03:21,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-28 03:03:21,180 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 5.214285714285714) internal successors, (73), 14 states have internal predecessors, (73), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 75 [2024-11-28 03:03:21,180 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:03:21,183 INFO L225 Difference]: With dead ends: 1053 [2024-11-28 03:03:21,184 INFO L226 Difference]: Without dead ends: 555 [2024-11-28 03:03:21,185 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=33, Invalid=207, Unknown=0, NotChecked=0, Total=240 [2024-11-28 03:03:21,185 INFO L435 NwaCegarLoop]: 569 mSDtfsCounter, 49 mSDsluCounter, 6102 mSDsCounter, 0 mSdLazyCounter, 1300 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 6671 SdHoareTripleChecker+Invalid, 1303 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1300 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2024-11-28 03:03:21,186 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [49 Valid, 6671 Invalid, 1303 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1300 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2024-11-28 03:03:21,187 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 555 states. [2024-11-28 03:03:21,203 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 555 to 532. [2024-11-28 03:03:21,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 532 states, 509 states have (on average 1.3359528487229861) internal successors, (680), 513 states have internal predecessors, (680), 15 states have call successors, (15), 4 states have call predecessors, (15), 4 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-11-28 03:03:21,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 532 states to 532 states and 710 transitions. [2024-11-28 03:03:21,207 INFO L78 Accepts]: Start accepts. Automaton has 532 states and 710 transitions. Word has length 75 [2024-11-28 03:03:21,207 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:03:21,207 INFO L471 AbstractCegarLoop]: Abstraction has 532 states and 710 transitions. [2024-11-28 03:03:21,207 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 5.214285714285714) internal successors, (73), 14 states have internal predecessors, (73), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:03:21,207 INFO L276 IsEmpty]: Start isEmpty. Operand 532 states and 710 transitions. [2024-11-28 03:03:21,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2024-11-28 03:03:21,208 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:03:21,208 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:03:21,208 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2024-11-28 03:03:21,209 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [alt_freeErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-28 03:03:21,209 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:03:21,209 INFO L85 PathProgramCache]: Analyzing trace with hash 92515440, now seen corresponding path program 1 times [2024-11-28 03:03:21,209 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:03:21,209 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1619847574] [2024-11-28 03:03:21,209 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:03:21,209 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:03:21,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:03:21,681 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:03:21,681 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:03:21,681 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1619847574] [2024-11-28 03:03:21,681 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1619847574] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:03:21,682 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:03:21,682 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-28 03:03:21,682 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [805104133] [2024-11-28 03:03:21,682 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:03:21,682 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-28 03:03:21,682 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:03:21,683 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-28 03:03:21,683 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2024-11-28 03:03:21,683 INFO L87 Difference]: Start difference. First operand 532 states and 710 transitions. Second operand has 12 states, 12 states have (on average 6.083333333333333) internal successors, (73), 12 states have internal predecessors, (73), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:03:22,472 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:03:22,473 INFO L93 Difference]: Finished difference Result 1042 states and 1401 transitions. [2024-11-28 03:03:22,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-28 03:03:22,473 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 6.083333333333333) internal successors, (73), 12 states have internal predecessors, (73), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 75 [2024-11-28 03:03:22,473 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:03:22,476 INFO L225 Difference]: With dead ends: 1042 [2024-11-28 03:03:22,476 INFO L226 Difference]: Without dead ends: 544 [2024-11-28 03:03:22,477 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=25, Invalid=131, Unknown=0, NotChecked=0, Total=156 [2024-11-28 03:03:22,478 INFO L435 NwaCegarLoop]: 559 mSDtfsCounter, 17 mSDsluCounter, 5030 mSDsCounter, 0 mSdLazyCounter, 958 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 5589 SdHoareTripleChecker+Invalid, 959 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 958 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-28 03:03:22,478 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 5589 Invalid, 959 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 958 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-28 03:03:22,479 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 544 states. [2024-11-28 03:03:22,494 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 544 to 530. [2024-11-28 03:03:22,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 530 states, 507 states have (on average 1.3353057199211045) internal successors, (677), 511 states have internal predecessors, (677), 15 states have call successors, (15), 4 states have call predecessors, (15), 4 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-11-28 03:03:22,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 530 states to 530 states and 707 transitions. [2024-11-28 03:03:22,498 INFO L78 Accepts]: Start accepts. Automaton has 530 states and 707 transitions. Word has length 75 [2024-11-28 03:03:22,498 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:03:22,498 INFO L471 AbstractCegarLoop]: Abstraction has 530 states and 707 transitions. [2024-11-28 03:03:22,498 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 6.083333333333333) internal successors, (73), 12 states have internal predecessors, (73), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:03:22,499 INFO L276 IsEmpty]: Start isEmpty. Operand 530 states and 707 transitions. [2024-11-28 03:03:22,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2024-11-28 03:03:22,500 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:03:22,500 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:03:22,500 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2024-11-28 03:03:22,500 INFO L396 AbstractCegarLoop]: === Iteration 37 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [alt_freeErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-28 03:03:22,501 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:03:22,501 INFO L85 PathProgramCache]: Analyzing trace with hash -2142009340, now seen corresponding path program 1 times [2024-11-28 03:03:22,501 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:03:22,501 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [163963787] [2024-11-28 03:03:22,501 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:03:22,501 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:03:22,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:03:22,876 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:03:22,876 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:03:22,876 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [163963787] [2024-11-28 03:03:22,876 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [163963787] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:03:22,876 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:03:22,876 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-28 03:03:22,876 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [8990461] [2024-11-28 03:03:22,876 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:03:22,877 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-28 03:03:22,877 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:03:22,877 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-28 03:03:22,877 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-11-28 03:03:22,877 INFO L87 Difference]: Start difference. First operand 530 states and 707 transitions. Second operand has 10 states, 10 states have (on average 7.3) internal successors, (73), 10 states have internal predecessors, (73), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:03:23,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:03:23,483 INFO L93 Difference]: Finished difference Result 1035 states and 1390 transitions. [2024-11-28 03:03:23,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-28 03:03:23,484 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 7.3) internal successors, (73), 10 states have internal predecessors, (73), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 75 [2024-11-28 03:03:23,484 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:03:23,486 INFO L225 Difference]: With dead ends: 1035 [2024-11-28 03:03:23,486 INFO L226 Difference]: Without dead ends: 539 [2024-11-28 03:03:23,487 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2024-11-28 03:03:23,487 INFO L435 NwaCegarLoop]: 559 mSDtfsCounter, 48 mSDsluCounter, 4015 mSDsCounter, 0 mSdLazyCounter, 673 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 4574 SdHoareTripleChecker+Invalid, 674 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 673 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-28 03:03:23,487 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 4574 Invalid, 674 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 673 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-28 03:03:23,488 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 539 states. [2024-11-28 03:03:23,503 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 539 to 528. [2024-11-28 03:03:23,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 528 states, 505 states have (on average 1.3346534653465347) internal successors, (674), 509 states have internal predecessors, (674), 15 states have call successors, (15), 4 states have call predecessors, (15), 4 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-11-28 03:03:23,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 528 states to 528 states and 704 transitions. [2024-11-28 03:03:23,506 INFO L78 Accepts]: Start accepts. Automaton has 528 states and 704 transitions. Word has length 75 [2024-11-28 03:03:23,507 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:03:23,507 INFO L471 AbstractCegarLoop]: Abstraction has 528 states and 704 transitions. [2024-11-28 03:03:23,507 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.3) internal successors, (73), 10 states have internal predecessors, (73), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:03:23,507 INFO L276 IsEmpty]: Start isEmpty. Operand 528 states and 704 transitions. [2024-11-28 03:03:23,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2024-11-28 03:03:23,508 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:03:23,508 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:03:23,509 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2024-11-28 03:03:23,509 INFO L396 AbstractCegarLoop]: === Iteration 38 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [alt_freeErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-28 03:03:23,509 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:03:23,509 INFO L85 PathProgramCache]: Analyzing trace with hash -1236855830, now seen corresponding path program 1 times [2024-11-28 03:03:23,509 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:03:23,510 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [451323460] [2024-11-28 03:03:23,510 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:03:23,510 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:03:23,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:03:24,284 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:03:24,284 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:03:24,284 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [451323460] [2024-11-28 03:03:24,284 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [451323460] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:03:24,285 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:03:24,285 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-28 03:03:24,288 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [693454712] [2024-11-28 03:03:24,288 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:03:24,288 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-28 03:03:24,288 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:03:24,289 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-28 03:03:24,289 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=131, Unknown=0, NotChecked=0, Total=156 [2024-11-28 03:03:24,289 INFO L87 Difference]: Start difference. First operand 528 states and 704 transitions. Second operand has 13 states, 13 states have (on average 5.615384615384615) internal successors, (73), 13 states have internal predecessors, (73), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:03:25,685 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:03:25,685 INFO L93 Difference]: Finished difference Result 1048 states and 1409 transitions. [2024-11-28 03:03:25,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-28 03:03:25,686 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 5.615384615384615) internal successors, (73), 13 states have internal predecessors, (73), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 75 [2024-11-28 03:03:25,686 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:03:25,689 INFO L225 Difference]: With dead ends: 1048 [2024-11-28 03:03:25,689 INFO L226 Difference]: Without dead ends: 554 [2024-11-28 03:03:25,690 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=25, Invalid=131, Unknown=0, NotChecked=0, Total=156 [2024-11-28 03:03:25,691 INFO L435 NwaCegarLoop]: 546 mSDtfsCounter, 36 mSDsluCounter, 4534 mSDsCounter, 0 mSdLazyCounter, 911 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 5080 SdHoareTripleChecker+Invalid, 916 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 911 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-28 03:03:25,691 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 5080 Invalid, 916 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 911 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-28 03:03:25,692 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 554 states. [2024-11-28 03:03:25,706 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 554 to 538. [2024-11-28 03:03:25,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 538 states, 515 states have (on average 1.3339805825242719) internal successors, (687), 519 states have internal predecessors, (687), 15 states have call successors, (15), 4 states have call predecessors, (15), 4 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-11-28 03:03:25,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 538 states to 538 states and 717 transitions. [2024-11-28 03:03:25,710 INFO L78 Accepts]: Start accepts. Automaton has 538 states and 717 transitions. Word has length 75 [2024-11-28 03:03:25,710 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:03:25,710 INFO L471 AbstractCegarLoop]: Abstraction has 538 states and 717 transitions. [2024-11-28 03:03:25,710 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 5.615384615384615) internal successors, (73), 13 states have internal predecessors, (73), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:03:25,711 INFO L276 IsEmpty]: Start isEmpty. Operand 538 states and 717 transitions. [2024-11-28 03:03:25,711 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2024-11-28 03:03:25,711 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:03:25,712 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:03:25,712 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2024-11-28 03:03:25,712 INFO L396 AbstractCegarLoop]: === Iteration 39 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [alt_freeErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-28 03:03:25,713 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:03:25,713 INFO L85 PathProgramCache]: Analyzing trace with hash -103242493, now seen corresponding path program 1 times [2024-11-28 03:03:25,713 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:03:25,713 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [832226283] [2024-11-28 03:03:25,713 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:03:25,713 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:03:25,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat