./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.ufo.BOUNDED-10.pals.c.p+lhb-reducer.c --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_9bdc6e39-28c5-46b2-8b5e-befe7c9e83e7/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bdc6e39-28c5-46b2-8b5e-befe7c9e83e7/bin/uautomizer-verify-84ZbGMXZE1/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bdc6e39-28c5-46b2-8b5e-befe7c9e83e7/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bdc6e39-28c5-46b2-8b5e-befe7c9e83e7/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.ufo.BOUNDED-10.pals.c.p+lhb-reducer.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bdc6e39-28c5-46b2-8b5e-befe7c9e83e7/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bdc6e39-28c5-46b2-8b5e-befe7c9e83e7/bin/uautomizer-verify-84ZbGMXZE1 --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 351e3bc8fe69313dfbfbeaf7f37de5791a1bf381bb5ef0945347e83cb39fb485 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-02 08:13:33,604 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 08:13:33,661 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bdc6e39-28c5-46b2-8b5e-befe7c9e83e7/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-12-02 08:13:33,666 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 08:13:33,666 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 08:13:33,688 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 08:13:33,689 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 08:13:33,689 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 08:13:33,689 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-02 08:13:33,689 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-02 08:13:33,689 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-02 08:13:33,689 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-02 08:13:33,690 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 08:13:33,690 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 08:13:33,690 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 08:13:33,690 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 08:13:33,690 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-02 08:13:33,690 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-02 08:13:33,690 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-02 08:13:33,690 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-02 08:13:33,690 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 08:13:33,691 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-02 08:13:33,691 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-02 08:13:33,691 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-02 08:13:33,691 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-02 08:13:33,691 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-02 08:13:33,691 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 08:13:33,691 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 08:13:33,691 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-02 08:13:33,691 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 08:13:33,691 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 08:13:33,691 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 08:13:33,691 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 08:13:33,692 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 08:13:33,692 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 08:13:33,692 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 08:13:33,692 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 08:13:33,692 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 08:13:33,692 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 08:13:33,692 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-02 08:13:33,692 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-02 08:13:33,692 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-02 08:13:33,692 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-12-02 08:13:33,692 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-02 08:13:33,693 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-02 08:13:33,693 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-02 08:13:33,693 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-02 08:13:33,693 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-02 08:13:33,693 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_9bdc6e39-28c5-46b2-8b5e-befe7c9e83e7/bin/uautomizer-verify-84ZbGMXZE1 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 -> 351e3bc8fe69313dfbfbeaf7f37de5791a1bf381bb5ef0945347e83cb39fb485 [2024-12-02 08:13:33,938 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 08:13:33,947 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 08:13:33,949 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 08:13:33,951 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 08:13:33,951 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 08:13:33,952 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bdc6e39-28c5-46b2-8b5e-befe7c9e83e7/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.ufo.BOUNDED-10.pals.c.p+lhb-reducer.c [2024-12-02 08:13:36,867 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bdc6e39-28c5-46b2-8b5e-befe7c9e83e7/bin/uautomizer-verify-84ZbGMXZE1/data/6961c6c66/b786214968b74f0884238c88b7de6b8c/FLAGb2d292449 [2024-12-02 08:13:37,114 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 08:13:37,115 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bdc6e39-28c5-46b2-8b5e-befe7c9e83e7/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.ufo.BOUNDED-10.pals.c.p+lhb-reducer.c [2024-12-02 08:13:37,128 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bdc6e39-28c5-46b2-8b5e-befe7c9e83e7/bin/uautomizer-verify-84ZbGMXZE1/data/6961c6c66/b786214968b74f0884238c88b7de6b8c/FLAGb2d292449 [2024-12-02 08:13:37,145 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bdc6e39-28c5-46b2-8b5e-befe7c9e83e7/bin/uautomizer-verify-84ZbGMXZE1/data/6961c6c66/b786214968b74f0884238c88b7de6b8c [2024-12-02 08:13:37,148 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 08:13:37,149 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 08:13:37,151 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 08:13:37,151 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 08:13:37,156 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 08:13:37,156 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 08:13:37" (1/1) ... [2024-12-02 08:13:37,157 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@c3b16 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:13:37, skipping insertion in model container [2024-12-02 08:13:37,157 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 08:13:37" (1/1) ... [2024-12-02 08:13:37,194 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 08:13:37,446 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_9bdc6e39-28c5-46b2-8b5e-befe7c9e83e7/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.ufo.BOUNDED-10.pals.c.p+lhb-reducer.c[11101,11114] [2024-12-02 08:13:37,522 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 08:13:37,537 INFO L200 MainTranslator]: Completed pre-run [2024-12-02 08:13:37,618 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_9bdc6e39-28c5-46b2-8b5e-befe7c9e83e7/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.ufo.BOUNDED-10.pals.c.p+lhb-reducer.c[11101,11114] [2024-12-02 08:13:37,666 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 08:13:37,683 INFO L204 MainTranslator]: Completed translation [2024-12-02 08:13:37,683 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:13:37 WrapperNode [2024-12-02 08:13:37,683 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-02 08:13:37,684 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-02 08:13:37,684 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-02 08:13:37,684 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-02 08:13:37,691 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:13:37" (1/1) ... [2024-12-02 08:13:37,705 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:13:37" (1/1) ... [2024-12-02 08:13:37,754 INFO L138 Inliner]: procedures = 24, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 1197 [2024-12-02 08:13:37,754 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-02 08:13:37,755 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-02 08:13:37,755 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-02 08:13:37,755 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-02 08:13:37,763 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:13:37" (1/1) ... [2024-12-02 08:13:37,763 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:13:37" (1/1) ... [2024-12-02 08:13:37,768 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:13:37" (1/1) ... [2024-12-02 08:13:37,789 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-12-02 08:13:37,790 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:13:37" (1/1) ... [2024-12-02 08:13:37,790 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:13:37" (1/1) ... [2024-12-02 08:13:37,804 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:13:37" (1/1) ... [2024-12-02 08:13:37,807 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:13:37" (1/1) ... [2024-12-02 08:13:37,816 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:13:37" (1/1) ... [2024-12-02 08:13:37,820 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:13:37" (1/1) ... [2024-12-02 08:13:37,824 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:13:37" (1/1) ... [2024-12-02 08:13:37,831 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-02 08:13:37,832 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-02 08:13:37,832 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-02 08:13:37,833 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-02 08:13:37,834 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:13:37" (1/1) ... [2024-12-02 08:13:37,840 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 08:13:37,856 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bdc6e39-28c5-46b2-8b5e-befe7c9e83e7/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 08:13:37,869 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bdc6e39-28c5-46b2-8b5e-befe7c9e83e7/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-12-02 08:13:37,872 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bdc6e39-28c5-46b2-8b5e-befe7c9e83e7/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-12-02 08:13:37,898 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-02 08:13:37,898 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-12-02 08:13:37,898 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-02 08:13:37,898 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-02 08:13:38,030 INFO L234 CfgBuilder]: Building ICFG [2024-12-02 08:13:38,032 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-02 08:13:39,059 INFO L? ?]: Removed 147 outVars from TransFormulas that were not future-live. [2024-12-02 08:13:39,060 INFO L283 CfgBuilder]: Performing block encoding [2024-12-02 08:13:39,075 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-02 08:13:39,075 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-12-02 08:13:39,076 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 08:13:39 BoogieIcfgContainer [2024-12-02 08:13:39,076 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-02 08:13:39,078 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-02 08:13:39,078 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-02 08:13:39,082 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-02 08:13:39,083 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 08:13:37" (1/3) ... [2024-12-02 08:13:39,083 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a6f361a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 08:13:39, skipping insertion in model container [2024-12-02 08:13:39,083 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:13:37" (2/3) ... [2024-12-02 08:13:39,083 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a6f361a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 08:13:39, skipping insertion in model container [2024-12-02 08:13:39,083 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 08:13:39" (3/3) ... [2024-12-02 08:13:39,085 INFO L128 eAbstractionObserver]: Analyzing ICFG pals_lcr-var-start-time.5.ufo.BOUNDED-10.pals.c.p+lhb-reducer.c [2024-12-02 08:13:39,099 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-02 08:13:39,102 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG pals_lcr-var-start-time.5.ufo.BOUNDED-10.pals.c.p+lhb-reducer.c that has 1 procedures, 330 locations, 1 initial locations, 0 loop locations, and 1 error locations. [2024-12-02 08:13:39,159 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-02 08:13:39,169 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;@664ccbda, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-02 08:13:39,170 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-12-02 08:13:39,174 INFO L276 IsEmpty]: Start isEmpty. Operand has 330 states, 328 states have (on average 1.6524390243902438) internal successors, (542), 329 states have internal predecessors, (542), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:13:39,184 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2024-12-02 08:13:39,185 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:13:39,185 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, 1, 1, 1, 1] [2024-12-02 08:13:39,185 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:13:39,189 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:13:39,189 INFO L85 PathProgramCache]: Analyzing trace with hash 498035691, now seen corresponding path program 1 times [2024-12-02 08:13:39,194 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:13:39,194 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [495186999] [2024-12-02 08:13:39,195 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:13:39,195 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:13:39,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:13:39,615 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 08:13:39,616 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:13:39,616 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [495186999] [2024-12-02 08:13:39,617 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [495186999] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:13:39,617 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:13:39,617 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 08:13:39,618 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1595603067] [2024-12-02 08:13:39,619 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:13:39,623 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 08:13:39,623 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:13:39,644 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 08:13:39,645 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 08:13:39,648 INFO L87 Difference]: Start difference. First operand has 330 states, 328 states have (on average 1.6524390243902438) internal successors, (542), 329 states have internal predecessors, (542), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 4 states have (on average 19.75) internal successors, (79), 4 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:13:39,815 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:13:39,816 INFO L93 Difference]: Finished difference Result 627 states and 1019 transitions. [2024-12-02 08:13:39,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 08:13:39,818 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.75) internal successors, (79), 4 states have internal predecessors, (79), 0 states have call successors, (0), 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 79 [2024-12-02 08:13:39,819 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:13:39,827 INFO L225 Difference]: With dead ends: 627 [2024-12-02 08:13:39,828 INFO L226 Difference]: Without dead ends: 327 [2024-12-02 08:13:39,831 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 08:13:39,834 INFO L435 NwaCegarLoop]: 537 mSDtfsCounter, 154 mSDsluCounter, 875 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 154 SdHoareTripleChecker+Valid, 1412 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 08:13:39,834 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [154 Valid, 1412 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 08:13:39,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 327 states. [2024-12-02 08:13:39,871 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 327 to 327. [2024-12-02 08:13:39,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 327 states, 326 states have (on average 1.5368098159509203) internal successors, (501), 326 states have internal predecessors, (501), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:13:39,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 327 states to 327 states and 501 transitions. [2024-12-02 08:13:39,878 INFO L78 Accepts]: Start accepts. Automaton has 327 states and 501 transitions. Word has length 79 [2024-12-02 08:13:39,878 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:13:39,879 INFO L471 AbstractCegarLoop]: Abstraction has 327 states and 501 transitions. [2024-12-02 08:13:39,879 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.75) internal successors, (79), 4 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:13:39,879 INFO L276 IsEmpty]: Start isEmpty. Operand 327 states and 501 transitions. [2024-12-02 08:13:39,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2024-12-02 08:13:39,883 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:13:39,884 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:13:39,884 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-12-02 08:13:39,884 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:13:39,885 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:13:39,885 INFO L85 PathProgramCache]: Analyzing trace with hash 2093359288, now seen corresponding path program 1 times [2024-12-02 08:13:39,885 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:13:39,885 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1711652944] [2024-12-02 08:13:39,885 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:13:39,885 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:13:39,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:13:40,070 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 08:13:40,070 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:13:40,070 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1711652944] [2024-12-02 08:13:40,070 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1711652944] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:13:40,070 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:13:40,071 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 08:13:40,071 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [249172221] [2024-12-02 08:13:40,071 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:13:40,072 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 08:13:40,072 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:13:40,073 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 08:13:40,073 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 08:13:40,073 INFO L87 Difference]: Start difference. First operand 327 states and 501 transitions. Second operand has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:13:40,127 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:13:40,127 INFO L93 Difference]: Finished difference Result 761 states and 1193 transitions. [2024-12-02 08:13:40,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 08:13:40,128 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 110 [2024-12-02 08:13:40,128 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:13:40,130 INFO L225 Difference]: With dead ends: 761 [2024-12-02 08:13:40,130 INFO L226 Difference]: Without dead ends: 483 [2024-12-02 08:13:40,131 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 08:13:40,132 INFO L435 NwaCegarLoop]: 489 mSDtfsCounter, 304 mSDsluCounter, 401 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 304 SdHoareTripleChecker+Valid, 890 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 08:13:40,132 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [304 Valid, 890 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 08:13:40,134 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 483 states. [2024-12-02 08:13:40,150 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 483 to 481. [2024-12-02 08:13:40,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 481 states, 480 states have (on average 1.5520833333333333) internal successors, (745), 480 states have internal predecessors, (745), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:13:40,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 481 states to 481 states and 745 transitions. [2024-12-02 08:13:40,153 INFO L78 Accepts]: Start accepts. Automaton has 481 states and 745 transitions. Word has length 110 [2024-12-02 08:13:40,154 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:13:40,154 INFO L471 AbstractCegarLoop]: Abstraction has 481 states and 745 transitions. [2024-12-02 08:13:40,154 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:13:40,154 INFO L276 IsEmpty]: Start isEmpty. Operand 481 states and 745 transitions. [2024-12-02 08:13:40,157 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2024-12-02 08:13:40,157 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:13:40,157 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:13:40,158 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-12-02 08:13:40,158 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:13:40,158 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:13:40,158 INFO L85 PathProgramCache]: Analyzing trace with hash -55375790, now seen corresponding path program 1 times [2024-12-02 08:13:40,158 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:13:40,159 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [676473193] [2024-12-02 08:13:40,159 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:13:40,159 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:13:40,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:13:40,289 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 08:13:40,289 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:13:40,289 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [676473193] [2024-12-02 08:13:40,289 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [676473193] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:13:40,289 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:13:40,289 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 08:13:40,289 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2142344436] [2024-12-02 08:13:40,289 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:13:40,290 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 08:13:40,290 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:13:40,290 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 08:13:40,290 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 08:13:40,291 INFO L87 Difference]: Start difference. First operand 481 states and 745 transitions. Second operand has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 3 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:13:40,336 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:13:40,336 INFO L93 Difference]: Finished difference Result 1163 states and 1832 transitions. [2024-12-02 08:13:40,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 08:13:40,337 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 3 states have internal predecessors, (112), 0 states have call successors, (0), 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 112 [2024-12-02 08:13:40,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:13:40,340 INFO L225 Difference]: With dead ends: 1163 [2024-12-02 08:13:40,340 INFO L226 Difference]: Without dead ends: 744 [2024-12-02 08:13:40,341 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 08:13:40,342 INFO L435 NwaCegarLoop]: 479 mSDtfsCounter, 289 mSDsluCounter, 376 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 289 SdHoareTripleChecker+Valid, 855 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 08:13:40,342 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [289 Valid, 855 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 08:13:40,344 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 744 states. [2024-12-02 08:13:40,361 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 744 to 742. [2024-12-02 08:13:40,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 742 states, 741 states have (on average 1.562753036437247) internal successors, (1158), 741 states have internal predecessors, (1158), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:13:40,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 742 states to 742 states and 1158 transitions. [2024-12-02 08:13:40,367 INFO L78 Accepts]: Start accepts. Automaton has 742 states and 1158 transitions. Word has length 112 [2024-12-02 08:13:40,367 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:13:40,367 INFO L471 AbstractCegarLoop]: Abstraction has 742 states and 1158 transitions. [2024-12-02 08:13:40,367 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 3 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:13:40,367 INFO L276 IsEmpty]: Start isEmpty. Operand 742 states and 1158 transitions. [2024-12-02 08:13:40,370 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2024-12-02 08:13:40,370 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:13:40,370 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:13:40,371 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-12-02 08:13:40,371 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:13:40,371 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:13:40,371 INFO L85 PathProgramCache]: Analyzing trace with hash -1569587546, now seen corresponding path program 1 times [2024-12-02 08:13:40,371 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:13:40,372 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [586776388] [2024-12-02 08:13:40,372 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:13:40,372 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:13:40,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:13:40,509 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 08:13:40,509 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:13:40,509 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [586776388] [2024-12-02 08:13:40,510 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [586776388] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:13:40,510 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:13:40,510 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 08:13:40,510 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1235254859] [2024-12-02 08:13:40,510 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:13:40,510 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 08:13:40,510 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:13:40,511 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 08:13:40,511 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 08:13:40,512 INFO L87 Difference]: Start difference. First operand 742 states and 1158 transitions. Second operand has 3 states, 3 states have (on average 38.0) internal successors, (114), 3 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:13:40,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:13:40,569 INFO L93 Difference]: Finished difference Result 1834 states and 2894 transitions. [2024-12-02 08:13:40,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 08:13:40,570 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 38.0) internal successors, (114), 3 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2024-12-02 08:13:40,570 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:13:40,575 INFO L225 Difference]: With dead ends: 1834 [2024-12-02 08:13:40,576 INFO L226 Difference]: Without dead ends: 1167 [2024-12-02 08:13:40,577 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 08:13:40,578 INFO L435 NwaCegarLoop]: 538 mSDtfsCounter, 274 mSDsluCounter, 351 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 274 SdHoareTripleChecker+Valid, 889 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 08:13:40,578 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [274 Valid, 889 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 08:13:40,580 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1167 states. [2024-12-02 08:13:40,610 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1167 to 1165. [2024-12-02 08:13:40,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1165 states, 1164 states have (on average 1.5670103092783505) internal successors, (1824), 1164 states have internal predecessors, (1824), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:13:40,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1165 states to 1165 states and 1824 transitions. [2024-12-02 08:13:40,620 INFO L78 Accepts]: Start accepts. Automaton has 1165 states and 1824 transitions. Word has length 114 [2024-12-02 08:13:40,621 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:13:40,621 INFO L471 AbstractCegarLoop]: Abstraction has 1165 states and 1824 transitions. [2024-12-02 08:13:40,621 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.0) internal successors, (114), 3 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:13:40,621 INFO L276 IsEmpty]: Start isEmpty. Operand 1165 states and 1824 transitions. [2024-12-02 08:13:40,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2024-12-02 08:13:40,625 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:13:40,625 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:13:40,625 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-12-02 08:13:40,626 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:13:40,626 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:13:40,626 INFO L85 PathProgramCache]: Analyzing trace with hash -598144290, now seen corresponding path program 1 times [2024-12-02 08:13:40,626 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:13:40,626 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1147379143] [2024-12-02 08:13:40,627 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:13:40,627 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:13:40,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:13:40,773 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 08:13:40,773 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:13:40,773 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1147379143] [2024-12-02 08:13:40,773 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1147379143] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:13:40,773 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:13:40,773 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 08:13:40,773 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [977807098] [2024-12-02 08:13:40,774 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:13:40,774 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 08:13:40,774 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:13:40,775 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 08:13:40,775 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 08:13:40,775 INFO L87 Difference]: Start difference. First operand 1165 states and 1824 transitions. Second operand has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 3 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:13:40,838 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:13:40,838 INFO L93 Difference]: Finished difference Result 2887 states and 4547 transitions. [2024-12-02 08:13:40,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 08:13:40,839 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 3 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 116 [2024-12-02 08:13:40,839 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:13:40,846 INFO L225 Difference]: With dead ends: 2887 [2024-12-02 08:13:40,846 INFO L226 Difference]: Without dead ends: 1810 [2024-12-02 08:13:40,848 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 08:13:40,849 INFO L435 NwaCegarLoop]: 459 mSDtfsCounter, 259 mSDsluCounter, 326 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 259 SdHoareTripleChecker+Valid, 785 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 08:13:40,849 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [259 Valid, 785 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 08:13:40,852 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1810 states. [2024-12-02 08:13:40,901 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1810 to 1808. [2024-12-02 08:13:40,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1808 states, 1807 states have (on average 1.563918096292197) internal successors, (2826), 1807 states have internal predecessors, (2826), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:13:40,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1808 states to 1808 states and 2826 transitions. [2024-12-02 08:13:40,915 INFO L78 Accepts]: Start accepts. Automaton has 1808 states and 2826 transitions. Word has length 116 [2024-12-02 08:13:40,916 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:13:40,916 INFO L471 AbstractCegarLoop]: Abstraction has 1808 states and 2826 transitions. [2024-12-02 08:13:40,916 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 3 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:13:40,916 INFO L276 IsEmpty]: Start isEmpty. Operand 1808 states and 2826 transitions. [2024-12-02 08:13:40,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2024-12-02 08:13:40,921 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:13:40,922 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:13:40,922 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-12-02 08:13:40,922 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:13:40,922 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:13:40,922 INFO L85 PathProgramCache]: Analyzing trace with hash 1082431554, now seen corresponding path program 1 times [2024-12-02 08:13:40,923 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:13:40,923 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [117002115] [2024-12-02 08:13:40,923 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:13:40,923 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:13:40,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:13:41,058 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 08:13:41,058 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:13:41,059 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [117002115] [2024-12-02 08:13:41,059 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [117002115] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:13:41,059 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:13:41,059 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 08:13:41,059 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1748666188] [2024-12-02 08:13:41,059 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:13:41,059 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 08:13:41,059 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:13:41,060 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 08:13:41,060 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 08:13:41,060 INFO L87 Difference]: Start difference. First operand 1808 states and 2826 transitions. Second operand has 3 states, 3 states have (on average 39.333333333333336) internal successors, (118), 3 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:13:41,120 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:13:41,120 INFO L93 Difference]: Finished difference Result 4392 states and 6872 transitions. [2024-12-02 08:13:41,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 08:13:41,121 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 39.333333333333336) internal successors, (118), 3 states have internal predecessors, (118), 0 states have call successors, (0), 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 118 [2024-12-02 08:13:41,121 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:13:41,130 INFO L225 Difference]: With dead ends: 4392 [2024-12-02 08:13:41,130 INFO L226 Difference]: Without dead ends: 2685 [2024-12-02 08:13:41,133 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 08:13:41,133 INFO L435 NwaCegarLoop]: 449 mSDtfsCounter, 244 mSDsluCounter, 301 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 244 SdHoareTripleChecker+Valid, 750 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 08:13:41,134 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [244 Valid, 750 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 08:13:41,137 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2685 states. [2024-12-02 08:13:41,199 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2685 to 2683. [2024-12-02 08:13:41,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2683 states, 2682 states have (on average 1.5510812826249067) internal successors, (4160), 2682 states have internal predecessors, (4160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:13:41,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2683 states to 2683 states and 4160 transitions. [2024-12-02 08:13:41,218 INFO L78 Accepts]: Start accepts. Automaton has 2683 states and 4160 transitions. Word has length 118 [2024-12-02 08:13:41,218 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:13:41,218 INFO L471 AbstractCegarLoop]: Abstraction has 2683 states and 4160 transitions. [2024-12-02 08:13:41,218 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 39.333333333333336) internal successors, (118), 3 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:13:41,219 INFO L276 IsEmpty]: Start isEmpty. Operand 2683 states and 4160 transitions. [2024-12-02 08:13:41,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2024-12-02 08:13:41,225 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:13:41,226 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:13:41,226 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-12-02 08:13:41,226 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:13:41,226 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:13:41,226 INFO L85 PathProgramCache]: Analyzing trace with hash 1267336044, now seen corresponding path program 1 times [2024-12-02 08:13:41,226 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:13:41,226 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1118969168] [2024-12-02 08:13:41,227 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:13:41,227 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:13:41,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:13:41,501 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 08:13:41,501 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:13:41,501 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1118969168] [2024-12-02 08:13:41,501 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1118969168] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:13:41,501 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:13:41,501 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-12-02 08:13:41,502 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1166972179] [2024-12-02 08:13:41,502 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:13:41,502 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 08:13:41,502 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:13:41,503 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 08:13:41,503 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-12-02 08:13:41,503 INFO L87 Difference]: Start difference. First operand 2683 states and 4160 transitions. Second operand has 7 states, 7 states have (on average 17.142857142857142) internal successors, (120), 7 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:13:41,819 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:13:41,819 INFO L93 Difference]: Finished difference Result 15784 states and 24519 transitions. [2024-12-02 08:13:41,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 08:13:41,820 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 17.142857142857142) internal successors, (120), 7 states have internal predecessors, (120), 0 states have call successors, (0), 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 120 [2024-12-02 08:13:41,820 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:13:41,862 INFO L225 Difference]: With dead ends: 15784 [2024-12-02 08:13:41,862 INFO L226 Difference]: Without dead ends: 13206 [2024-12-02 08:13:41,867 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2024-12-02 08:13:41,868 INFO L435 NwaCegarLoop]: 441 mSDtfsCounter, 3063 mSDsluCounter, 2659 mSDsCounter, 0 mSdLazyCounter, 151 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3063 SdHoareTripleChecker+Valid, 3100 SdHoareTripleChecker+Invalid, 161 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 151 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 08:13:41,868 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3063 Valid, 3100 Invalid, 161 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 151 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 08:13:41,881 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13206 states. [2024-12-02 08:13:42,034 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13206 to 5166. [2024-12-02 08:13:42,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5166 states, 5165 states have (on average 1.5295256534365924) internal successors, (7900), 5165 states have internal predecessors, (7900), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:13:42,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5166 states to 5166 states and 7900 transitions. [2024-12-02 08:13:42,067 INFO L78 Accepts]: Start accepts. Automaton has 5166 states and 7900 transitions. Word has length 120 [2024-12-02 08:13:42,067 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:13:42,067 INFO L471 AbstractCegarLoop]: Abstraction has 5166 states and 7900 transitions. [2024-12-02 08:13:42,067 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 17.142857142857142) internal successors, (120), 7 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:13:42,068 INFO L276 IsEmpty]: Start isEmpty. Operand 5166 states and 7900 transitions. [2024-12-02 08:13:42,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2024-12-02 08:13:42,076 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:13:42,076 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:13:42,076 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-12-02 08:13:42,076 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:13:42,077 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:13:42,077 INFO L85 PathProgramCache]: Analyzing trace with hash -621228175, now seen corresponding path program 1 times [2024-12-02 08:13:42,077 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:13:42,077 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [950684859] [2024-12-02 08:13:42,077 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:13:42,077 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:13:42,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:13:42,401 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 08:13:42,401 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:13:42,401 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [950684859] [2024-12-02 08:13:42,401 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [950684859] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:13:42,401 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:13:42,401 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-12-02 08:13:42,402 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [489890868] [2024-12-02 08:13:42,402 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:13:42,402 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 08:13:42,402 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:13:42,402 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 08:13:42,403 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-12-02 08:13:42,403 INFO L87 Difference]: Start difference. First operand 5166 states and 7900 transitions. Second operand has 7 states, 7 states have (on average 17.571428571428573) internal successors, (123), 7 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:13:42,833 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:13:42,833 INFO L93 Difference]: Finished difference Result 26107 states and 39536 transitions. [2024-12-02 08:13:42,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 08:13:42,834 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 17.571428571428573) internal successors, (123), 7 states have internal predecessors, (123), 0 states have call successors, (0), 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 123 [2024-12-02 08:13:42,834 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:13:42,885 INFO L225 Difference]: With dead ends: 26107 [2024-12-02 08:13:42,886 INFO L226 Difference]: Without dead ends: 21036 [2024-12-02 08:13:42,894 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-12-02 08:13:42,895 INFO L435 NwaCegarLoop]: 1139 mSDtfsCounter, 2152 mSDsluCounter, 1303 mSDsCounter, 0 mSdLazyCounter, 205 mSolverCounterSat, 76 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2152 SdHoareTripleChecker+Valid, 2442 SdHoareTripleChecker+Invalid, 281 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 76 IncrementalHoareTripleChecker+Valid, 205 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-12-02 08:13:42,895 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2152 Valid, 2442 Invalid, 281 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [76 Valid, 205 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-12-02 08:13:42,915 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21036 states. [2024-12-02 08:13:43,226 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21036 to 21028. [2024-12-02 08:13:43,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21028 states, 21027 states have (on average 1.504113758500975) internal successors, (31627), 21027 states have internal predecessors, (31627), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:13:43,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21028 states to 21028 states and 31627 transitions. [2024-12-02 08:13:43,321 INFO L78 Accepts]: Start accepts. Automaton has 21028 states and 31627 transitions. Word has length 123 [2024-12-02 08:13:43,321 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:13:43,321 INFO L471 AbstractCegarLoop]: Abstraction has 21028 states and 31627 transitions. [2024-12-02 08:13:43,321 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 17.571428571428573) internal successors, (123), 7 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:13:43,322 INFO L276 IsEmpty]: Start isEmpty. Operand 21028 states and 31627 transitions. [2024-12-02 08:13:43,360 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2024-12-02 08:13:43,360 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:13:43,360 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:13:43,360 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-12-02 08:13:43,360 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:13:43,361 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:13:43,361 INFO L85 PathProgramCache]: Analyzing trace with hash 1699798234, now seen corresponding path program 1 times [2024-12-02 08:13:43,361 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:13:43,361 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1293910344] [2024-12-02 08:13:43,361 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:13:43,361 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:13:43,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:13:43,505 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 08:13:43,505 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:13:43,505 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1293910344] [2024-12-02 08:13:43,505 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1293910344] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:13:43,505 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:13:43,506 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 08:13:43,506 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1823374765] [2024-12-02 08:13:43,506 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:13:43,506 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 08:13:43,506 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:13:43,507 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 08:13:43,507 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 08:13:43,507 INFO L87 Difference]: Start difference. First operand 21028 states and 31627 transitions. Second operand has 3 states, 3 states have (on average 41.666666666666664) internal successors, (125), 3 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:13:43,736 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:13:43,736 INFO L93 Difference]: Finished difference Result 53370 states and 80175 transitions. [2024-12-02 08:13:43,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 08:13:43,737 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 41.666666666666664) internal successors, (125), 3 states have internal predecessors, (125), 0 states have call successors, (0), 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 125 [2024-12-02 08:13:43,737 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:13:43,823 INFO L225 Difference]: With dead ends: 53370 [2024-12-02 08:13:43,823 INFO L226 Difference]: Without dead ends: 36544 [2024-12-02 08:13:43,845 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 08:13:43,846 INFO L435 NwaCegarLoop]: 646 mSDtfsCounter, 349 mSDsluCounter, 410 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 349 SdHoareTripleChecker+Valid, 1056 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 08:13:43,846 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [349 Valid, 1056 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 08:13:43,868 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36544 states. [2024-12-02 08:13:44,363 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36544 to 36542. [2024-12-02 08:13:44,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36542 states, 36541 states have (on average 1.4911195643250048) internal successors, (54487), 36541 states have internal predecessors, (54487), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:13:44,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36542 states to 36542 states and 54487 transitions. [2024-12-02 08:13:44,556 INFO L78 Accepts]: Start accepts. Automaton has 36542 states and 54487 transitions. Word has length 125 [2024-12-02 08:13:44,556 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:13:44,557 INFO L471 AbstractCegarLoop]: Abstraction has 36542 states and 54487 transitions. [2024-12-02 08:13:44,557 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 41.666666666666664) internal successors, (125), 3 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:13:44,557 INFO L276 IsEmpty]: Start isEmpty. Operand 36542 states and 54487 transitions. [2024-12-02 08:13:44,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2024-12-02 08:13:44,608 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:13:44,608 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:13:44,608 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-12-02 08:13:44,608 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:13:44,609 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:13:44,609 INFO L85 PathProgramCache]: Analyzing trace with hash 1357098248, now seen corresponding path program 1 times [2024-12-02 08:13:44,609 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:13:44,609 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1753511528] [2024-12-02 08:13:44,609 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:13:44,609 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:13:44,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:13:44,696 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 08:13:44,696 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:13:44,696 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1753511528] [2024-12-02 08:13:44,696 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1753511528] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:13:44,696 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:13:44,696 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 08:13:44,696 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [710954351] [2024-12-02 08:13:44,696 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:13:44,697 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 08:13:44,697 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:13:44,697 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 08:13:44,697 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 08:13:44,698 INFO L87 Difference]: Start difference. First operand 36542 states and 54487 transitions. Second operand has 3 states, 3 states have (on average 41.666666666666664) internal successors, (125), 3 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:13:44,960 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:13:44,960 INFO L93 Difference]: Finished difference Result 83822 states and 124831 transitions. [2024-12-02 08:13:44,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 08:13:44,961 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 41.666666666666664) internal successors, (125), 3 states have internal predecessors, (125), 0 states have call successors, (0), 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 125 [2024-12-02 08:13:44,961 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:13:45,129 INFO L225 Difference]: With dead ends: 83822 [2024-12-02 08:13:45,129 INFO L226 Difference]: Without dead ends: 59225 [2024-12-02 08:13:45,152 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 08:13:45,153 INFO L435 NwaCegarLoop]: 747 mSDtfsCounter, 328 mSDsluCounter, 410 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 328 SdHoareTripleChecker+Valid, 1157 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 08:13:45,156 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [328 Valid, 1157 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 08:13:45,188 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59225 states. [2024-12-02 08:13:45,970 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59225 to 59223. [2024-12-02 08:13:46,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59223 states, 59222 states have (on average 1.4779136131842896) internal successors, (87525), 59222 states have internal predecessors, (87525), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:13:46,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59223 states to 59223 states and 87525 transitions. [2024-12-02 08:13:46,085 INFO L78 Accepts]: Start accepts. Automaton has 59223 states and 87525 transitions. Word has length 125 [2024-12-02 08:13:46,085 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:13:46,085 INFO L471 AbstractCegarLoop]: Abstraction has 59223 states and 87525 transitions. [2024-12-02 08:13:46,085 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 41.666666666666664) internal successors, (125), 3 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:13:46,085 INFO L276 IsEmpty]: Start isEmpty. Operand 59223 states and 87525 transitions. [2024-12-02 08:13:46,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2024-12-02 08:13:46,135 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:13:46,135 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:13:46,135 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-12-02 08:13:46,135 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:13:46,136 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:13:46,136 INFO L85 PathProgramCache]: Analyzing trace with hash 716954330, now seen corresponding path program 1 times [2024-12-02 08:13:46,136 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:13:46,136 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1469286770] [2024-12-02 08:13:46,136 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:13:46,136 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:13:46,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:13:46,300 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 08:13:46,300 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:13:46,300 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1469286770] [2024-12-02 08:13:46,300 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1469286770] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:13:46,300 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:13:46,300 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 08:13:46,300 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [943951648] [2024-12-02 08:13:46,300 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:13:46,301 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 08:13:46,301 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:13:46,301 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 08:13:46,301 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 08:13:46,302 INFO L87 Difference]: Start difference. First operand 59223 states and 87525 transitions. Second operand has 3 states, 3 states have (on average 41.666666666666664) internal successors, (125), 3 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:13:46,694 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:13:46,695 INFO L93 Difference]: Finished difference Result 120135 states and 177071 transitions. [2024-12-02 08:13:46,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 08:13:46,695 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 41.666666666666664) internal successors, (125), 3 states have internal predecessors, (125), 0 states have call successors, (0), 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 125 [2024-12-02 08:13:46,696 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:13:46,796 INFO L225 Difference]: With dead ends: 120135 [2024-12-02 08:13:46,796 INFO L226 Difference]: Without dead ends: 88513 [2024-12-02 08:13:46,824 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 08:13:46,825 INFO L435 NwaCegarLoop]: 739 mSDtfsCounter, 281 mSDsluCounter, 410 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 281 SdHoareTripleChecker+Valid, 1149 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 08:13:46,825 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [281 Valid, 1149 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 08:13:46,865 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88513 states. [2024-12-02 08:13:47,933 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88513 to 88511. [2024-12-02 08:13:47,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 88511 states, 88510 states have (on average 1.462693480962603) internal successors, (129463), 88510 states have internal predecessors, (129463), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:13:48,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88511 states to 88511 states and 129463 transitions. [2024-12-02 08:13:48,129 INFO L78 Accepts]: Start accepts. Automaton has 88511 states and 129463 transitions. Word has length 125 [2024-12-02 08:13:48,130 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:13:48,130 INFO L471 AbstractCegarLoop]: Abstraction has 88511 states and 129463 transitions. [2024-12-02 08:13:48,130 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 41.666666666666664) internal successors, (125), 3 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:13:48,130 INFO L276 IsEmpty]: Start isEmpty. Operand 88511 states and 129463 transitions. [2024-12-02 08:13:48,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2024-12-02 08:13:48,221 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:13:48,221 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:13:48,221 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-12-02 08:13:48,222 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:13:48,222 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:13:48,222 INFO L85 PathProgramCache]: Analyzing trace with hash -55854518, now seen corresponding path program 1 times [2024-12-02 08:13:48,222 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:13:48,222 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [136360808] [2024-12-02 08:13:48,222 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:13:48,222 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:13:48,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:13:48,328 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 08:13:48,328 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:13:48,328 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [136360808] [2024-12-02 08:13:48,328 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [136360808] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:13:48,328 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:13:48,328 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 08:13:48,328 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [587192865] [2024-12-02 08:13:48,328 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:13:48,329 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 08:13:48,329 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:13:48,329 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 08:13:48,329 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 08:13:48,329 INFO L87 Difference]: Start difference. First operand 88511 states and 129463 transitions. Second operand has 3 states, 3 states have (on average 41.666666666666664) internal successors, (125), 3 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:13:48,645 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:13:48,645 INFO L93 Difference]: Finished difference Result 146361 states and 212639 transitions. [2024-12-02 08:13:48,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 08:13:48,646 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 41.666666666666664) internal successors, (125), 3 states have internal predecessors, (125), 0 states have call successors, (0), 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 125 [2024-12-02 08:13:48,646 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:13:48,760 INFO L225 Difference]: With dead ends: 146361 [2024-12-02 08:13:48,761 INFO L226 Difference]: Without dead ends: 116544 [2024-12-02 08:13:48,794 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 08:13:48,794 INFO L435 NwaCegarLoop]: 720 mSDtfsCounter, 263 mSDsluCounter, 410 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 263 SdHoareTripleChecker+Valid, 1130 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 08:13:48,795 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [263 Valid, 1130 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 08:13:48,856 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116544 states. [2024-12-02 08:13:50,432 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116544 to 116542. [2024-12-02 08:13:50,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 116542 states, 116541 states have (on average 1.4427283102084245) internal successors, (168137), 116541 states have internal predecessors, (168137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:13:50,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116542 states to 116542 states and 168137 transitions. [2024-12-02 08:13:50,627 INFO L78 Accepts]: Start accepts. Automaton has 116542 states and 168137 transitions. Word has length 125 [2024-12-02 08:13:50,627 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:13:50,628 INFO L471 AbstractCegarLoop]: Abstraction has 116542 states and 168137 transitions. [2024-12-02 08:13:50,628 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 41.666666666666664) internal successors, (125), 3 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:13:50,628 INFO L276 IsEmpty]: Start isEmpty. Operand 116542 states and 168137 transitions. [2024-12-02 08:13:50,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2024-12-02 08:13:50,723 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:13:50,723 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:13:50,723 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-12-02 08:13:50,723 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:13:50,724 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:13:50,724 INFO L85 PathProgramCache]: Analyzing trace with hash 2035168963, now seen corresponding path program 1 times [2024-12-02 08:13:50,724 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:13:50,724 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [832796306] [2024-12-02 08:13:50,724 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:13:50,724 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:13:50,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:13:51,149 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 08:13:51,150 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:13:51,150 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [832796306] [2024-12-02 08:13:51,150 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [832796306] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:13:51,150 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:13:51,150 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 08:13:51,150 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [133838299] [2024-12-02 08:13:51,150 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:13:51,151 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 08:13:51,151 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:13:51,152 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 08:13:51,152 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 08:13:51,152 INFO L87 Difference]: Start difference. First operand 116542 states and 168137 transitions. Second operand has 5 states, 5 states have (on average 25.4) internal successors, (127), 4 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:13:52,767 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:13:52,767 INFO L93 Difference]: Finished difference Result 322975 states and 465925 transitions. [2024-12-02 08:13:52,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 08:13:52,768 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 25.4) internal successors, (127), 4 states have internal predecessors, (127), 0 states have call successors, (0), 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 127 [2024-12-02 08:13:52,768 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:13:52,966 INFO L225 Difference]: With dead ends: 322975 [2024-12-02 08:13:52,966 INFO L226 Difference]: Without dead ends: 206477 [2024-12-02 08:13:53,018 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-12-02 08:13:53,019 INFO L435 NwaCegarLoop]: 262 mSDtfsCounter, 1840 mSDsluCounter, 172 mSDsCounter, 0 mSdLazyCounter, 302 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1840 SdHoareTripleChecker+Valid, 434 SdHoareTripleChecker+Invalid, 313 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 302 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-12-02 08:13:53,019 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1840 Valid, 434 Invalid, 313 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 302 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-12-02 08:13:53,135 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 206477 states. [2024-12-02 08:13:55,333 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 206477 to 206475. [2024-12-02 08:13:55,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 206475 states, 206474 states have (on average 1.437527243139572) internal successors, (296812), 206474 states have internal predecessors, (296812), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:13:55,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 206475 states to 206475 states and 296812 transitions. [2024-12-02 08:13:55,845 INFO L78 Accepts]: Start accepts. Automaton has 206475 states and 296812 transitions. Word has length 127 [2024-12-02 08:13:55,845 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:13:55,845 INFO L471 AbstractCegarLoop]: Abstraction has 206475 states and 296812 transitions. [2024-12-02 08:13:55,845 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 25.4) internal successors, (127), 4 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:13:55,845 INFO L276 IsEmpty]: Start isEmpty. Operand 206475 states and 296812 transitions. [2024-12-02 08:13:56,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2024-12-02 08:13:56,192 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:13:56,192 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:13:56,192 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-12-02 08:13:56,192 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:13:56,193 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:13:56,193 INFO L85 PathProgramCache]: Analyzing trace with hash -1408195571, now seen corresponding path program 1 times [2024-12-02 08:13:56,193 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:13:56,193 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1203005629] [2024-12-02 08:13:56,193 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:13:56,193 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:13:56,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:13:56,319 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 08:13:56,319 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:13:56,319 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1203005629] [2024-12-02 08:13:56,319 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1203005629] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:13:56,319 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:13:56,319 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 08:13:56,319 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [883008467] [2024-12-02 08:13:56,320 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:13:56,320 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 08:13:56,320 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:13:56,320 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 08:13:56,321 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 08:13:56,321 INFO L87 Difference]: Start difference. First operand 206475 states and 296812 transitions. Second operand has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 3 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:13:57,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:13:57,480 INFO L93 Difference]: Finished difference Result 375535 states and 539822 transitions. [2024-12-02 08:13:57,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 08:13:57,481 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 3 states have internal predecessors, (127), 0 states have call successors, (0), 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 127 [2024-12-02 08:13:57,481 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:13:57,689 INFO L225 Difference]: With dead ends: 375535 [2024-12-02 08:13:57,689 INFO L226 Difference]: Without dead ends: 192500 [2024-12-02 08:13:57,743 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 08:13:57,744 INFO L435 NwaCegarLoop]: 429 mSDtfsCounter, 205 mSDsluCounter, 318 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 205 SdHoareTripleChecker+Valid, 747 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 08:13:57,744 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [205 Valid, 747 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 08:13:57,840 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 192500 states. [2024-12-02 08:14:00,226 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 192500 to 192498. [2024-12-02 08:14:00,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 192498 states, 192497 states have (on average 1.4275547151384178) internal successors, (274800), 192497 states have internal predecessors, (274800), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:14:00,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 192498 states to 192498 states and 274800 transitions. [2024-12-02 08:14:00,885 INFO L78 Accepts]: Start accepts. Automaton has 192498 states and 274800 transitions. Word has length 127 [2024-12-02 08:14:00,886 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:14:00,886 INFO L471 AbstractCegarLoop]: Abstraction has 192498 states and 274800 transitions. [2024-12-02 08:14:00,886 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 3 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:14:00,886 INFO L276 IsEmpty]: Start isEmpty. Operand 192498 states and 274800 transitions. [2024-12-02 08:14:00,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2024-12-02 08:14:00,968 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:14:00,968 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:14:00,968 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-12-02 08:14:00,968 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:14:00,968 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:14:00,968 INFO L85 PathProgramCache]: Analyzing trace with hash 1680642543, now seen corresponding path program 1 times [2024-12-02 08:14:00,968 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:14:00,968 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1005041091] [2024-12-02 08:14:00,968 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:14:00,969 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:14:01,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:14:01,085 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 08:14:01,085 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:14:01,085 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1005041091] [2024-12-02 08:14:01,086 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1005041091] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:14:01,086 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:14:01,086 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 08:14:01,086 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [982362896] [2024-12-02 08:14:01,086 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:14:01,086 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 08:14:01,086 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:14:01,086 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 08:14:01,087 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 08:14:01,087 INFO L87 Difference]: Start difference. First operand 192498 states and 274800 transitions. Second operand has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 3 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:14:02,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:14:02,167 INFO L93 Difference]: Finished difference Result 277030 states and 395330 transitions. [2024-12-02 08:14:02,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 08:14:02,168 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 3 states have internal predecessors, (127), 0 states have call successors, (0), 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 127 [2024-12-02 08:14:02,168 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:14:02,283 INFO L225 Difference]: With dead ends: 277030 [2024-12-02 08:14:02,283 INFO L226 Difference]: Without dead ends: 97298 [2024-12-02 08:14:02,339 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 08:14:02,340 INFO L435 NwaCegarLoop]: 412 mSDtfsCounter, 180 mSDsluCounter, 298 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 180 SdHoareTripleChecker+Valid, 710 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 08:14:02,340 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [180 Valid, 710 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 08:14:02,392 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97298 states. [2024-12-02 08:14:03,605 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97298 to 97296. [2024-12-02 08:14:03,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 97296 states, 97295 states have (on average 1.4173184644637442) internal successors, (137898), 97295 states have internal predecessors, (137898), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:14:04,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97296 states to 97296 states and 137898 transitions. [2024-12-02 08:14:04,022 INFO L78 Accepts]: Start accepts. Automaton has 97296 states and 137898 transitions. Word has length 127 [2024-12-02 08:14:04,022 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:14:04,022 INFO L471 AbstractCegarLoop]: Abstraction has 97296 states and 137898 transitions. [2024-12-02 08:14:04,022 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 3 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:14:04,023 INFO L276 IsEmpty]: Start isEmpty. Operand 97296 states and 137898 transitions. [2024-12-02 08:14:04,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2024-12-02 08:14:04,065 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:14:04,065 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:14:04,065 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-12-02 08:14:04,065 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:14:04,066 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:14:04,066 INFO L85 PathProgramCache]: Analyzing trace with hash -44063175, now seen corresponding path program 1 times [2024-12-02 08:14:04,066 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:14:04,066 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [32251446] [2024-12-02 08:14:04,066 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:14:04,066 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:14:04,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:14:04,171 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 08:14:04,171 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:14:04,171 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [32251446] [2024-12-02 08:14:04,171 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [32251446] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:14:04,171 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:14:04,171 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 08:14:04,171 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1597543225] [2024-12-02 08:14:04,172 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:14:04,172 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 08:14:04,172 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:14:04,172 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 08:14:04,172 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 08:14:04,173 INFO L87 Difference]: Start difference. First operand 97296 states and 137898 transitions. Second operand has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 3 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:14:04,463 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:14:04,464 INFO L93 Difference]: Finished difference Result 139564 states and 197676 transitions. [2024-12-02 08:14:04,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 08:14:04,464 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 3 states have internal predecessors, (127), 0 states have call successors, (0), 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 127 [2024-12-02 08:14:04,465 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:14:04,515 INFO L225 Difference]: With dead ends: 139564 [2024-12-02 08:14:04,515 INFO L226 Difference]: Without dead ends: 49866 [2024-12-02 08:14:04,551 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 08:14:04,551 INFO L435 NwaCegarLoop]: 424 mSDtfsCounter, 166 mSDsluCounter, 268 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 166 SdHoareTripleChecker+Valid, 692 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 08:14:04,552 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [166 Valid, 692 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 08:14:04,576 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49866 states. [2024-12-02 08:14:05,192 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49866 to 49864. [2024-12-02 08:14:05,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49864 states, 49863 states have (on average 1.4058119246736056) internal successors, (70098), 49863 states have internal predecessors, (70098), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:14:05,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49864 states to 49864 states and 70098 transitions. [2024-12-02 08:14:05,289 INFO L78 Accepts]: Start accepts. Automaton has 49864 states and 70098 transitions. Word has length 127 [2024-12-02 08:14:05,289 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:14:05,289 INFO L471 AbstractCegarLoop]: Abstraction has 49864 states and 70098 transitions. [2024-12-02 08:14:05,289 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 3 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:14:05,289 INFO L276 IsEmpty]: Start isEmpty. Operand 49864 states and 70098 transitions. [2024-12-02 08:14:05,315 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2024-12-02 08:14:05,315 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:14:05,315 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:14:05,315 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-12-02 08:14:05,316 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:14:05,316 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:14:05,316 INFO L85 PathProgramCache]: Analyzing trace with hash 172528685, now seen corresponding path program 1 times [2024-12-02 08:14:05,316 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:14:05,317 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [566163351] [2024-12-02 08:14:05,317 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:14:05,317 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:14:05,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:14:05,460 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 08:14:05,460 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:14:05,460 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [566163351] [2024-12-02 08:14:05,460 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [566163351] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:14:05,460 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:14:05,461 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 08:14:05,461 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1040759889] [2024-12-02 08:14:05,461 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:14:05,461 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 08:14:05,461 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:14:05,462 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 08:14:05,462 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 08:14:05,462 INFO L87 Difference]: Start difference. First operand 49864 states and 70098 transitions. Second operand has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 3 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:14:05,661 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:14:05,661 INFO L93 Difference]: Finished difference Result 71000 states and 99744 transitions. [2024-12-02 08:14:05,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 08:14:05,662 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 3 states have internal predecessors, (127), 0 states have call successors, (0), 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 127 [2024-12-02 08:14:05,662 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:14:05,685 INFO L225 Difference]: With dead ends: 71000 [2024-12-02 08:14:05,685 INFO L226 Difference]: Without dead ends: 26536 [2024-12-02 08:14:05,702 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 08:14:05,703 INFO L435 NwaCegarLoop]: 407 mSDtfsCounter, 141 mSDsluCounter, 248 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 141 SdHoareTripleChecker+Valid, 655 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 08:14:05,703 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [141 Valid, 655 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 08:14:05,714 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26536 states. [2024-12-02 08:14:06,115 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26536 to 26534. [2024-12-02 08:14:06,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26534 states, 26533 states have (on average 1.3932838352240606) internal successors, (36968), 26533 states have internal predecessors, (36968), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:14:06,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26534 states to 26534 states and 36968 transitions. [2024-12-02 08:14:06,183 INFO L78 Accepts]: Start accepts. Automaton has 26534 states and 36968 transitions. Word has length 127 [2024-12-02 08:14:06,183 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:14:06,183 INFO L471 AbstractCegarLoop]: Abstraction has 26534 states and 36968 transitions. [2024-12-02 08:14:06,183 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 3 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:14:06,183 INFO L276 IsEmpty]: Start isEmpty. Operand 26534 states and 36968 transitions. [2024-12-02 08:14:06,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2024-12-02 08:14:06,201 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:14:06,202 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:14:06,202 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-12-02 08:14:06,202 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:14:06,202 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:14:06,202 INFO L85 PathProgramCache]: Analyzing trace with hash 1264776567, now seen corresponding path program 1 times [2024-12-02 08:14:06,202 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:14:06,202 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [898029609] [2024-12-02 08:14:06,202 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:14:06,203 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:14:06,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:14:06,644 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 08:14:06,645 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:14:06,645 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [898029609] [2024-12-02 08:14:06,645 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [898029609] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:14:06,645 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:14:06,645 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 08:14:06,645 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [674409922] [2024-12-02 08:14:06,645 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:14:06,646 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 08:14:06,646 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:14:06,646 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 08:14:06,646 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-12-02 08:14:06,647 INFO L87 Difference]: Start difference. First operand 26534 states and 36968 transitions. Second operand has 6 states, 6 states have (on average 21.166666666666668) internal successors, (127), 6 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:14:06,775 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:14:06,775 INFO L93 Difference]: Finished difference Result 27512 states and 38433 transitions. [2024-12-02 08:14:06,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 08:14:06,776 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 21.166666666666668) internal successors, (127), 6 states have internal predecessors, (127), 0 states have call successors, (0), 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 127 [2024-12-02 08:14:06,777 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:14:06,804 INFO L225 Difference]: With dead ends: 27512 [2024-12-02 08:14:06,804 INFO L226 Difference]: Without dead ends: 27510 [2024-12-02 08:14:06,812 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-12-02 08:14:06,812 INFO L435 NwaCegarLoop]: 371 mSDtfsCounter, 0 mSDsluCounter, 1468 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1839 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 08:14:06,812 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1839 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 08:14:06,828 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27510 states. [2024-12-02 08:14:07,199 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27510 to 27510. [2024-12-02 08:14:07,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27510 states, 27509 states have (on average 1.3793304009596858) internal successors, (37944), 27509 states have internal predecessors, (37944), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:14:07,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27510 states to 27510 states and 37944 transitions. [2024-12-02 08:14:07,268 INFO L78 Accepts]: Start accepts. Automaton has 27510 states and 37944 transitions. Word has length 127 [2024-12-02 08:14:07,268 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:14:07,268 INFO L471 AbstractCegarLoop]: Abstraction has 27510 states and 37944 transitions. [2024-12-02 08:14:07,268 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 21.166666666666668) internal successors, (127), 6 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:14:07,268 INFO L276 IsEmpty]: Start isEmpty. Operand 27510 states and 37944 transitions. [2024-12-02 08:14:07,287 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2024-12-02 08:14:07,287 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:14:07,287 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:14:07,287 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-12-02 08:14:07,287 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:14:07,288 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:14:07,288 INFO L85 PathProgramCache]: Analyzing trace with hash -1384750876, now seen corresponding path program 1 times [2024-12-02 08:14:07,288 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:14:07,288 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1746903472] [2024-12-02 08:14:07,288 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:14:07,288 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:14:07,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:14:07,637 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 08:14:07,637 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:14:07,637 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1746903472] [2024-12-02 08:14:07,637 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1746903472] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:14:07,638 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:14:07,638 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-12-02 08:14:07,638 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1586583321] [2024-12-02 08:14:07,638 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:14:07,638 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 08:14:07,638 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:14:07,639 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 08:14:07,639 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-12-02 08:14:07,639 INFO L87 Difference]: Start difference. First operand 27510 states and 37944 transitions. Second operand has 7 states, 7 states have (on average 18.285714285714285) internal successors, (128), 7 states have internal predecessors, (128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:14:07,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:14:07,971 INFO L93 Difference]: Finished difference Result 52582 states and 72744 transitions. [2024-12-02 08:14:07,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 08:14:07,971 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 18.285714285714285) internal successors, (128), 7 states have internal predecessors, (128), 0 states have call successors, (0), 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 128 [2024-12-02 08:14:07,972 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:14:08,010 INFO L225 Difference]: With dead ends: 52582 [2024-12-02 08:14:08,010 INFO L226 Difference]: Without dead ends: 46870 [2024-12-02 08:14:08,021 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2024-12-02 08:14:08,021 INFO L435 NwaCegarLoop]: 579 mSDtfsCounter, 2100 mSDsluCounter, 1903 mSDsCounter, 0 mSdLazyCounter, 159 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2100 SdHoareTripleChecker+Valid, 2482 SdHoareTripleChecker+Invalid, 165 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 159 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 08:14:08,021 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2100 Valid, 2482 Invalid, 165 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 159 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 08:14:08,043 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46870 states. [2024-12-02 08:14:08,367 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46870 to 33549. [2024-12-02 08:14:08,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33549 states, 33548 states have (on average 1.3772206987003697) internal successors, (46203), 33548 states have internal predecessors, (46203), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:14:08,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33549 states to 33549 states and 46203 transitions. [2024-12-02 08:14:08,426 INFO L78 Accepts]: Start accepts. Automaton has 33549 states and 46203 transitions. Word has length 128 [2024-12-02 08:14:08,426 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:14:08,426 INFO L471 AbstractCegarLoop]: Abstraction has 33549 states and 46203 transitions. [2024-12-02 08:14:08,426 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 18.285714285714285) internal successors, (128), 7 states have internal predecessors, (128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:14:08,427 INFO L276 IsEmpty]: Start isEmpty. Operand 33549 states and 46203 transitions. [2024-12-02 08:14:08,439 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2024-12-02 08:14:08,439 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:14:08,439 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:14:08,439 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-12-02 08:14:08,439 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:14:08,439 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:14:08,439 INFO L85 PathProgramCache]: Analyzing trace with hash 563941196, now seen corresponding path program 1 times [2024-12-02 08:14:08,440 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:14:08,440 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1474391815] [2024-12-02 08:14:08,440 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:14:08,440 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:14:08,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:14:08,518 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 08:14:08,518 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:14:08,518 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1474391815] [2024-12-02 08:14:08,518 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1474391815] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:14:08,518 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:14:08,518 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 08:14:08,518 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1637202322] [2024-12-02 08:14:08,518 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:14:08,519 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 08:14:08,519 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:14:08,519 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 08:14:08,519 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 08:14:08,519 INFO L87 Difference]: Start difference. First operand 33549 states and 46203 transitions. Second operand has 3 states, 3 states have (on average 42.666666666666664) internal successors, (128), 3 states have internal predecessors, (128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:14:08,790 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:14:08,790 INFO L93 Difference]: Finished difference Result 82518 states and 112524 transitions. [2024-12-02 08:14:08,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 08:14:08,790 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 42.666666666666664) internal successors, (128), 3 states have internal predecessors, (128), 0 states have call successors, (0), 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 128 [2024-12-02 08:14:08,791 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:14:08,830 INFO L225 Difference]: With dead ends: 82518 [2024-12-02 08:14:08,830 INFO L226 Difference]: Without dead ends: 49526 [2024-12-02 08:14:08,843 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 08:14:08,843 INFO L435 NwaCegarLoop]: 372 mSDtfsCounter, 216 mSDsluCounter, 232 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 216 SdHoareTripleChecker+Valid, 604 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 08:14:08,843 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [216 Valid, 604 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 08:14:08,864 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49526 states. [2024-12-02 08:14:09,239 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49526 to 48008. [2024-12-02 08:14:09,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48008 states, 48007 states have (on average 1.3564063574062115) internal successors, (65117), 48007 states have internal predecessors, (65117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:14:09,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48008 states to 48008 states and 65117 transitions. [2024-12-02 08:14:09,325 INFO L78 Accepts]: Start accepts. Automaton has 48008 states and 65117 transitions. Word has length 128 [2024-12-02 08:14:09,325 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:14:09,325 INFO L471 AbstractCegarLoop]: Abstraction has 48008 states and 65117 transitions. [2024-12-02 08:14:09,325 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 42.666666666666664) internal successors, (128), 3 states have internal predecessors, (128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:14:09,325 INFO L276 IsEmpty]: Start isEmpty. Operand 48008 states and 65117 transitions. [2024-12-02 08:14:09,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2024-12-02 08:14:09,348 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:14:09,349 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:14:09,349 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-12-02 08:14:09,349 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:14:09,349 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:14:09,349 INFO L85 PathProgramCache]: Analyzing trace with hash 593600719, now seen corresponding path program 1 times [2024-12-02 08:14:09,349 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:14:09,350 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2121256362] [2024-12-02 08:14:09,350 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:14:09,350 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:14:09,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:14:09,507 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 08:14:09,507 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:14:09,507 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2121256362] [2024-12-02 08:14:09,507 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2121256362] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:14:09,507 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:14:09,507 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-12-02 08:14:09,507 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1055893740] [2024-12-02 08:14:09,507 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:14:09,508 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 08:14:09,508 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:14:09,508 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 08:14:09,508 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-12-02 08:14:09,508 INFO L87 Difference]: Start difference. First operand 48008 states and 65117 transitions. Second operand has 7 states, 7 states have (on average 18.285714285714285) internal successors, (128), 7 states have internal predecessors, (128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:14:09,961 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:14:09,961 INFO L93 Difference]: Finished difference Result 85658 states and 116347 transitions. [2024-12-02 08:14:09,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 08:14:09,962 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 18.285714285714285) internal successors, (128), 7 states have internal predecessors, (128), 0 states have call successors, (0), 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 128 [2024-12-02 08:14:09,962 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:14:10,024 INFO L225 Difference]: With dead ends: 85658 [2024-12-02 08:14:10,024 INFO L226 Difference]: Without dead ends: 76744 [2024-12-02 08:14:10,041 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2024-12-02 08:14:10,042 INFO L435 NwaCegarLoop]: 571 mSDtfsCounter, 2073 mSDsluCounter, 1707 mSDsCounter, 0 mSdLazyCounter, 175 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2073 SdHoareTripleChecker+Valid, 2278 SdHoareTripleChecker+Invalid, 181 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 175 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 08:14:10,042 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2073 Valid, 2278 Invalid, 181 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 175 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 08:14:10,076 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76744 states. [2024-12-02 08:14:10,760 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76744 to 57106. [2024-12-02 08:14:10,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57106 states, 57105 states have (on average 1.353594256194729) internal successors, (77297), 57105 states have internal predecessors, (77297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:14:10,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57106 states to 57106 states and 77297 transitions. [2024-12-02 08:14:10,858 INFO L78 Accepts]: Start accepts. Automaton has 57106 states and 77297 transitions. Word has length 128 [2024-12-02 08:14:10,859 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:14:10,859 INFO L471 AbstractCegarLoop]: Abstraction has 57106 states and 77297 transitions. [2024-12-02 08:14:10,859 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 18.285714285714285) internal successors, (128), 7 states have internal predecessors, (128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:14:10,859 INFO L276 IsEmpty]: Start isEmpty. Operand 57106 states and 77297 transitions. [2024-12-02 08:14:10,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2024-12-02 08:14:10,887 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:14:10,887 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:14:10,887 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-12-02 08:14:10,887 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:14:10,887 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:14:10,887 INFO L85 PathProgramCache]: Analyzing trace with hash 1767896909, now seen corresponding path program 1 times [2024-12-02 08:14:10,887 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:14:10,887 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1588240570] [2024-12-02 08:14:10,887 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:14:10,888 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:14:10,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:14:11,052 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 08:14:11,053 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:14:11,053 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1588240570] [2024-12-02 08:14:11,053 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1588240570] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:14:11,053 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:14:11,053 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-12-02 08:14:11,053 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [79522469] [2024-12-02 08:14:11,053 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:14:11,054 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 08:14:11,054 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:14:11,054 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 08:14:11,054 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-12-02 08:14:11,055 INFO L87 Difference]: Start difference. First operand 57106 states and 77297 transitions. Second operand has 7 states, 7 states have (on average 18.285714285714285) internal successors, (128), 7 states have internal predecessors, (128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:14:11,424 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:14:11,425 INFO L93 Difference]: Finished difference Result 93981 states and 127484 transitions. [2024-12-02 08:14:11,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 08:14:11,426 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 18.285714285714285) internal successors, (128), 7 states have internal predecessors, (128), 0 states have call successors, (0), 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 128 [2024-12-02 08:14:11,427 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:14:11,508 INFO L225 Difference]: With dead ends: 93981 [2024-12-02 08:14:11,508 INFO L226 Difference]: Without dead ends: 85067 [2024-12-02 08:14:11,527 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2024-12-02 08:14:11,529 INFO L435 NwaCegarLoop]: 540 mSDtfsCounter, 2201 mSDsluCounter, 1676 mSDsCounter, 0 mSdLazyCounter, 128 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2201 SdHoareTripleChecker+Valid, 2216 SdHoareTripleChecker+Invalid, 134 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 128 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 08:14:11,529 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2201 Valid, 2216 Invalid, 134 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 128 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 08:14:11,570 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85067 states. [2024-12-02 08:14:12,468 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85067 to 65830. [2024-12-02 08:14:12,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65830 states, 65829 states have (on average 1.351942153154385) internal successors, (88997), 65829 states have internal predecessors, (88997), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:14:12,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65830 states to 65830 states and 88997 transitions. [2024-12-02 08:14:12,634 INFO L78 Accepts]: Start accepts. Automaton has 65830 states and 88997 transitions. Word has length 128 [2024-12-02 08:14:12,634 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:14:12,634 INFO L471 AbstractCegarLoop]: Abstraction has 65830 states and 88997 transitions. [2024-12-02 08:14:12,634 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 18.285714285714285) internal successors, (128), 7 states have internal predecessors, (128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:14:12,634 INFO L276 IsEmpty]: Start isEmpty. Operand 65830 states and 88997 transitions. [2024-12-02 08:14:12,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2024-12-02 08:14:12,683 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:14:12,684 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:14:12,684 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-12-02 08:14:12,684 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:14:12,684 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:14:12,684 INFO L85 PathProgramCache]: Analyzing trace with hash 1884229063, now seen corresponding path program 1 times [2024-12-02 08:14:12,684 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:14:12,684 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [349304273] [2024-12-02 08:14:12,684 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:14:12,685 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:14:12,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:14:12,901 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 08:14:12,901 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:14:12,901 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [349304273] [2024-12-02 08:14:12,901 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [349304273] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:14:12,901 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:14:12,901 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-12-02 08:14:12,901 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [686271481] [2024-12-02 08:14:12,901 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:14:12,902 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 08:14:12,902 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:14:12,902 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 08:14:12,903 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-12-02 08:14:12,903 INFO L87 Difference]: Start difference. First operand 65830 states and 88997 transitions. Second operand has 7 states, 7 states have (on average 18.285714285714285) internal successors, (128), 7 states have internal predecessors, (128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:14:13,539 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:14:13,540 INFO L93 Difference]: Finished difference Result 100863 states and 136586 transitions. [2024-12-02 08:14:13,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 08:14:13,540 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 18.285714285714285) internal successors, (128), 7 states have internal predecessors, (128), 0 states have call successors, (0), 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 128 [2024-12-02 08:14:13,540 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:14:13,640 INFO L225 Difference]: With dead ends: 100863 [2024-12-02 08:14:13,640 INFO L226 Difference]: Without dead ends: 91949 [2024-12-02 08:14:13,653 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2024-12-02 08:14:13,654 INFO L435 NwaCegarLoop]: 527 mSDtfsCounter, 2399 mSDsluCounter, 1716 mSDsCounter, 0 mSdLazyCounter, 124 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2399 SdHoareTripleChecker+Valid, 2243 SdHoareTripleChecker+Invalid, 130 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 124 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 08:14:13,654 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2399 Valid, 2243 Invalid, 130 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 124 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 08:14:13,692 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91949 states. [2024-12-02 08:14:14,464 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91949 to 74692. [2024-12-02 08:14:14,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 74692 states, 74691 states have (on average 1.349948454298376) internal successors, (100829), 74691 states have internal predecessors, (100829), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:14:14,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74692 states to 74692 states and 100829 transitions. [2024-12-02 08:14:14,599 INFO L78 Accepts]: Start accepts. Automaton has 74692 states and 100829 transitions. Word has length 128 [2024-12-02 08:14:14,599 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:14:14,599 INFO L471 AbstractCegarLoop]: Abstraction has 74692 states and 100829 transitions. [2024-12-02 08:14:14,599 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 18.285714285714285) internal successors, (128), 7 states have internal predecessors, (128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:14:14,599 INFO L276 IsEmpty]: Start isEmpty. Operand 74692 states and 100829 transitions. [2024-12-02 08:14:14,635 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2024-12-02 08:14:14,635 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:14:14,635 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:14:14,635 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-12-02 08:14:14,635 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:14:14,635 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:14:14,635 INFO L85 PathProgramCache]: Analyzing trace with hash -1711805346, now seen corresponding path program 1 times [2024-12-02 08:14:14,636 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:14:14,636 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1636768459] [2024-12-02 08:14:14,636 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:14:14,636 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:14:14,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:14:14,833 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 08:14:14,833 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:14:14,833 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1636768459] [2024-12-02 08:14:14,833 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1636768459] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:14:14,833 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:14:14,834 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-12-02 08:14:14,834 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1428587278] [2024-12-02 08:14:14,834 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:14:14,834 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 08:14:14,834 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:14:14,834 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 08:14:14,835 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-12-02 08:14:14,835 INFO L87 Difference]: Start difference. First operand 74692 states and 100829 transitions. Second operand has 7 states, 7 states have (on average 18.285714285714285) internal successors, (128), 7 states have internal predecessors, (128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:14:15,238 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:14:15,238 INFO L93 Difference]: Finished difference Result 105487 states and 142602 transitions. [2024-12-02 08:14:15,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 08:14:15,239 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 18.285714285714285) internal successors, (128), 7 states have internal predecessors, (128), 0 states have call successors, (0), 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 128 [2024-12-02 08:14:15,239 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:14:15,322 INFO L225 Difference]: With dead ends: 105487 [2024-12-02 08:14:15,322 INFO L226 Difference]: Without dead ends: 96573 [2024-12-02 08:14:15,343 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2024-12-02 08:14:15,344 INFO L435 NwaCegarLoop]: 517 mSDtfsCounter, 2166 mSDsluCounter, 1958 mSDsCounter, 0 mSdLazyCounter, 183 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2166 SdHoareTripleChecker+Valid, 2475 SdHoareTripleChecker+Invalid, 189 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 183 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 08:14:15,344 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2166 Valid, 2475 Invalid, 189 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 183 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 08:14:15,389 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96573 states. [2024-12-02 08:14:16,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96573 to 83338. [2024-12-02 08:14:16,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 83338 states, 83337 states have (on average 1.3482006791701164) internal successors, (112355), 83337 states have internal predecessors, (112355), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:14:16,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83338 states to 83338 states and 112355 transitions. [2024-12-02 08:14:16,370 INFO L78 Accepts]: Start accepts. Automaton has 83338 states and 112355 transitions. Word has length 128 [2024-12-02 08:14:16,370 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:14:16,370 INFO L471 AbstractCegarLoop]: Abstraction has 83338 states and 112355 transitions. [2024-12-02 08:14:16,370 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 18.285714285714285) internal successors, (128), 7 states have internal predecessors, (128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:14:16,370 INFO L276 IsEmpty]: Start isEmpty. Operand 83338 states and 112355 transitions. [2024-12-02 08:14:16,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2024-12-02 08:14:16,580 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:14:16,581 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:14:16,581 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-12-02 08:14:16,581 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:14:16,581 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:14:16,581 INFO L85 PathProgramCache]: Analyzing trace with hash -2006874039, now seen corresponding path program 1 times [2024-12-02 08:14:16,582 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:14:16,582 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1009148635] [2024-12-02 08:14:16,582 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:14:16,582 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:14:16,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:14:16,909 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 08:14:16,910 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:14:16,910 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1009148635] [2024-12-02 08:14:16,910 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1009148635] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:14:16,910 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:14:16,910 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 08:14:16,910 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [87433211] [2024-12-02 08:14:16,910 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:14:16,911 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 08:14:16,911 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:14:16,911 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 08:14:16,911 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-12-02 08:14:16,911 INFO L87 Difference]: Start difference. First operand 83338 states and 112355 transitions. Second operand has 4 states, 4 states have (on average 32.25) internal successors, (129), 4 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:14:17,406 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:14:17,406 INFO L93 Difference]: Finished difference Result 186070 states and 249322 transitions. [2024-12-02 08:14:17,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 08:14:17,406 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 32.25) internal successors, (129), 4 states have internal predecessors, (129), 0 states have call successors, (0), 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 129 [2024-12-02 08:14:17,407 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:14:17,531 INFO L225 Difference]: With dead ends: 186070 [2024-12-02 08:14:17,531 INFO L226 Difference]: Without dead ends: 110233 [2024-12-02 08:14:17,576 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-12-02 08:14:17,576 INFO L435 NwaCegarLoop]: 365 mSDtfsCounter, 303 mSDsluCounter, 343 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 303 SdHoareTripleChecker+Valid, 708 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 08:14:17,576 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [303 Valid, 708 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 08:14:17,637 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110233 states. [2024-12-02 08:14:18,677 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110233 to 82261. [2024-12-02 08:14:18,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 82261 states, 82260 states have (on average 1.3451495258935084) internal successors, (110652), 82260 states have internal predecessors, (110652), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:14:18,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82261 states to 82261 states and 110652 transitions. [2024-12-02 08:14:18,833 INFO L78 Accepts]: Start accepts. Automaton has 82261 states and 110652 transitions. Word has length 129 [2024-12-02 08:14:18,834 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:14:18,834 INFO L471 AbstractCegarLoop]: Abstraction has 82261 states and 110652 transitions. [2024-12-02 08:14:18,834 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 32.25) internal successors, (129), 4 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:14:18,834 INFO L276 IsEmpty]: Start isEmpty. Operand 82261 states and 110652 transitions. [2024-12-02 08:14:18,858 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2024-12-02 08:14:18,858 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:14:18,858 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:14:18,858 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-12-02 08:14:18,858 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:14:18,859 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:14:18,859 INFO L85 PathProgramCache]: Analyzing trace with hash 259774178, now seen corresponding path program 1 times [2024-12-02 08:14:18,859 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:14:18,859 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [139520008] [2024-12-02 08:14:18,859 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:14:18,859 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:14:18,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:14:18,934 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 08:14:18,934 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:14:18,934 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [139520008] [2024-12-02 08:14:18,934 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [139520008] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:14:18,934 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:14:18,935 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 08:14:18,935 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [420703089] [2024-12-02 08:14:18,935 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:14:18,935 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 08:14:18,935 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:14:18,936 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 08:14:18,936 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 08:14:18,936 INFO L87 Difference]: Start difference. First operand 82261 states and 110652 transitions. Second operand has 3 states, 3 states have (on average 44.0) internal successors, (132), 3 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:14:19,386 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:14:19,386 INFO L93 Difference]: Finished difference Result 126849 states and 170342 transitions. [2024-12-02 08:14:19,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 08:14:19,386 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.0) internal successors, (132), 3 states have internal predecessors, (132), 0 states have call successors, (0), 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 132 [2024-12-02 08:14:19,387 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:14:19,449 INFO L225 Difference]: With dead ends: 126849 [2024-12-02 08:14:19,449 INFO L226 Difference]: Without dead ends: 82263 [2024-12-02 08:14:19,467 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 08:14:19,467 INFO L435 NwaCegarLoop]: 378 mSDtfsCounter, 202 mSDsluCounter, 333 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 202 SdHoareTripleChecker+Valid, 711 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 08:14:19,468 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [202 Valid, 711 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 08:14:19,500 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82263 states. [2024-12-02 08:14:20,312 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82263 to 82261. [2024-12-02 08:14:20,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 82261 states, 82260 states have (on average 1.335716022368101) internal successors, (109876), 82260 states have internal predecessors, (109876), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:14:20,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82261 states to 82261 states and 109876 transitions. [2024-12-02 08:14:20,455 INFO L78 Accepts]: Start accepts. Automaton has 82261 states and 109876 transitions. Word has length 132 [2024-12-02 08:14:20,455 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:14:20,455 INFO L471 AbstractCegarLoop]: Abstraction has 82261 states and 109876 transitions. [2024-12-02 08:14:20,455 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.0) internal successors, (132), 3 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:14:20,455 INFO L276 IsEmpty]: Start isEmpty. Operand 82261 states and 109876 transitions. [2024-12-02 08:14:20,478 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2024-12-02 08:14:20,478 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:14:20,478 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:14:20,479 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-12-02 08:14:20,479 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:14:20,479 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:14:20,479 INFO L85 PathProgramCache]: Analyzing trace with hash 378408473, now seen corresponding path program 1 times [2024-12-02 08:14:20,479 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:14:20,479 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [178002614] [2024-12-02 08:14:20,479 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:14:20,480 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:14:20,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:14:20,545 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 08:14:20,545 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:14:20,545 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [178002614] [2024-12-02 08:14:20,545 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [178002614] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:14:20,545 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:14:20,545 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 08:14:20,545 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1241095169] [2024-12-02 08:14:20,545 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:14:20,546 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 08:14:20,546 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:14:20,546 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 08:14:20,546 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 08:14:20,547 INFO L87 Difference]: Start difference. First operand 82261 states and 109876 transitions. Second operand has 3 states, 3 states have (on average 44.333333333333336) internal successors, (133), 3 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:14:20,822 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:14:20,822 INFO L93 Difference]: Finished difference Result 127413 states and 169862 transitions. [2024-12-02 08:14:20,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 08:14:20,822 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.333333333333336) internal successors, (133), 3 states have internal predecessors, (133), 0 states have call successors, (0), 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 133 [2024-12-02 08:14:20,823 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:14:20,892 INFO L225 Difference]: With dead ends: 127413 [2024-12-02 08:14:20,892 INFO L226 Difference]: Without dead ends: 82263 [2024-12-02 08:14:20,919 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 08:14:20,919 INFO L435 NwaCegarLoop]: 382 mSDtfsCounter, 258 mSDsluCounter, 343 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 258 SdHoareTripleChecker+Valid, 725 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 08:14:20,919 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [258 Valid, 725 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 08:14:20,958 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82263 states. [2024-12-02 08:14:22,013 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82263 to 82261. [2024-12-02 08:14:22,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 82261 states, 82260 states have (on average 1.3270362265985898) internal successors, (109162), 82260 states have internal predecessors, (109162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:14:22,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82261 states to 82261 states and 109162 transitions. [2024-12-02 08:14:22,219 INFO L78 Accepts]: Start accepts. Automaton has 82261 states and 109162 transitions. Word has length 133 [2024-12-02 08:14:22,220 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:14:22,220 INFO L471 AbstractCegarLoop]: Abstraction has 82261 states and 109162 transitions. [2024-12-02 08:14:22,220 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.333333333333336) internal successors, (133), 3 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:14:22,220 INFO L276 IsEmpty]: Start isEmpty. Operand 82261 states and 109162 transitions. [2024-12-02 08:14:22,258 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2024-12-02 08:14:22,258 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:14:22,258 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:14:22,258 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-12-02 08:14:22,258 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:14:22,259 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:14:22,259 INFO L85 PathProgramCache]: Analyzing trace with hash 1071310609, now seen corresponding path program 1 times [2024-12-02 08:14:22,259 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:14:22,259 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [216962128] [2024-12-02 08:14:22,259 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:14:22,259 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:14:22,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:14:22,337 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 08:14:22,337 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:14:22,337 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [216962128] [2024-12-02 08:14:22,337 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [216962128] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:14:22,337 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:14:22,337 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 08:14:22,337 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1519471081] [2024-12-02 08:14:22,337 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:14:22,338 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 08:14:22,338 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:14:22,338 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 08:14:22,338 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 08:14:22,339 INFO L87 Difference]: Start difference. First operand 82261 states and 109162 transitions. Second operand has 3 states, 3 states have (on average 44.333333333333336) internal successors, (133), 3 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:14:22,751 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:14:22,751 INFO L93 Difference]: Finished difference Result 126033 states and 166870 transitions. [2024-12-02 08:14:22,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 08:14:22,752 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.333333333333336) internal successors, (133), 3 states have internal predecessors, (133), 0 states have call successors, (0), 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 133 [2024-12-02 08:14:22,752 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:14:22,837 INFO L225 Difference]: With dead ends: 126033 [2024-12-02 08:14:22,837 INFO L226 Difference]: Without dead ends: 82263 [2024-12-02 08:14:22,866 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 08:14:22,867 INFO L435 NwaCegarLoop]: 384 mSDtfsCounter, 222 mSDsluCounter, 343 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 222 SdHoareTripleChecker+Valid, 727 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 08:14:22,867 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [222 Valid, 727 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 08:14:22,914 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82263 states. [2024-12-02 08:14:23,802 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82263 to 82261. [2024-12-02 08:14:23,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 82261 states, 82260 states have (on average 1.3173839046924387) internal successors, (108368), 82260 states have internal predecessors, (108368), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:14:23,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82261 states to 82261 states and 108368 transitions. [2024-12-02 08:14:23,956 INFO L78 Accepts]: Start accepts. Automaton has 82261 states and 108368 transitions. Word has length 133 [2024-12-02 08:14:23,956 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:14:23,956 INFO L471 AbstractCegarLoop]: Abstraction has 82261 states and 108368 transitions. [2024-12-02 08:14:23,957 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.333333333333336) internal successors, (133), 3 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:14:23,957 INFO L276 IsEmpty]: Start isEmpty. Operand 82261 states and 108368 transitions. [2024-12-02 08:14:23,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2024-12-02 08:14:23,980 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:14:23,981 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:14:23,981 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-12-02 08:14:23,981 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:14:23,981 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:14:23,981 INFO L85 PathProgramCache]: Analyzing trace with hash 2032475642, now seen corresponding path program 1 times [2024-12-02 08:14:23,981 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:14:23,981 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1840972525] [2024-12-02 08:14:23,981 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:14:23,981 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:14:24,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:14:24,274 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 08:14:24,274 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:14:24,274 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1840972525] [2024-12-02 08:14:24,274 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1840972525] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:14:24,275 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:14:24,275 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 08:14:24,275 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1521284476] [2024-12-02 08:14:24,275 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:14:24,275 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 08:14:24,275 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:14:24,276 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 08:14:24,276 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 08:14:24,276 INFO L87 Difference]: Start difference. First operand 82261 states and 108368 transitions. Second operand has 3 states, 3 states have (on average 44.333333333333336) internal successors, (133), 3 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:14:24,530 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:14:24,530 INFO L93 Difference]: Finished difference Result 125039 states and 164336 transitions. [2024-12-02 08:14:24,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 08:14:24,531 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.333333333333336) internal successors, (133), 3 states have internal predecessors, (133), 0 states have call successors, (0), 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 133 [2024-12-02 08:14:24,531 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:14:24,600 INFO L225 Difference]: With dead ends: 125039 [2024-12-02 08:14:24,600 INFO L226 Difference]: Without dead ends: 82263 [2024-12-02 08:14:24,627 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 08:14:24,627 INFO L435 NwaCegarLoop]: 379 mSDtfsCounter, 204 mSDsluCounter, 343 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 204 SdHoareTripleChecker+Valid, 722 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 08:14:24,628 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [204 Valid, 722 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 08:14:24,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82263 states. [2024-12-02 08:14:25,428 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82263 to 82261. [2024-12-02 08:14:25,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 82261 states, 82260 states have (on average 1.3073061026015074) internal successors, (107539), 82260 states have internal predecessors, (107539), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:14:25,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82261 states to 82261 states and 107539 transitions. [2024-12-02 08:14:25,572 INFO L78 Accepts]: Start accepts. Automaton has 82261 states and 107539 transitions. Word has length 133 [2024-12-02 08:14:25,572 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:14:25,572 INFO L471 AbstractCegarLoop]: Abstraction has 82261 states and 107539 transitions. [2024-12-02 08:14:25,572 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.333333333333336) internal successors, (133), 3 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:14:25,572 INFO L276 IsEmpty]: Start isEmpty. Operand 82261 states and 107539 transitions. [2024-12-02 08:14:25,594 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2024-12-02 08:14:25,594 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:14:25,595 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:14:25,595 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2024-12-02 08:14:25,595 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:14:25,595 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:14:25,595 INFO L85 PathProgramCache]: Analyzing trace with hash 1220170594, now seen corresponding path program 1 times [2024-12-02 08:14:25,595 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:14:25,595 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1865996108] [2024-12-02 08:14:25,595 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:14:25,595 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:14:25,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:14:25,646 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 08:14:25,646 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:14:25,646 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1865996108] [2024-12-02 08:14:25,646 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1865996108] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:14:25,646 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:14:25,646 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 08:14:25,646 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [23873747] [2024-12-02 08:14:25,646 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:14:25,647 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 08:14:25,647 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:14:25,647 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 08:14:25,647 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 08:14:25,647 INFO L87 Difference]: Start difference. First operand 82261 states and 107539 transitions. Second operand has 3 states, 3 states have (on average 44.333333333333336) internal successors, (133), 3 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:14:25,912 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:14:25,913 INFO L93 Difference]: Finished difference Result 106435 states and 138799 transitions. [2024-12-02 08:14:25,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 08:14:25,913 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.333333333333336) internal successors, (133), 3 states have internal predecessors, (133), 0 states have call successors, (0), 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 133 [2024-12-02 08:14:25,913 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:14:25,963 INFO L225 Difference]: With dead ends: 106435 [2024-12-02 08:14:25,963 INFO L226 Difference]: Without dead ends: 61093 [2024-12-02 08:14:25,985 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 08:14:25,986 INFO L435 NwaCegarLoop]: 470 mSDtfsCounter, 276 mSDsluCounter, 343 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 276 SdHoareTripleChecker+Valid, 813 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 08:14:25,986 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [276 Valid, 813 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 08:14:26,014 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61093 states. [2024-12-02 08:14:26,678 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61093 to 60975. [2024-12-02 08:14:26,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60975 states, 60974 states have (on average 1.2954537999803195) internal successors, (78989), 60974 states have internal predecessors, (78989), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:14:26,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60975 states to 60975 states and 78989 transitions. [2024-12-02 08:14:26,826 INFO L78 Accepts]: Start accepts. Automaton has 60975 states and 78989 transitions. Word has length 133 [2024-12-02 08:14:26,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:14:26,826 INFO L471 AbstractCegarLoop]: Abstraction has 60975 states and 78989 transitions. [2024-12-02 08:14:26,827 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.333333333333336) internal successors, (133), 3 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:14:26,827 INFO L276 IsEmpty]: Start isEmpty. Operand 60975 states and 78989 transitions. [2024-12-02 08:14:26,857 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-12-02 08:14:26,857 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:14:26,857 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:14:26,857 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2024-12-02 08:14:26,857 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:14:26,858 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:14:26,858 INFO L85 PathProgramCache]: Analyzing trace with hash -886421200, now seen corresponding path program 1 times [2024-12-02 08:14:26,858 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:14:26,858 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [933338468] [2024-12-02 08:14:26,858 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:14:26,858 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:14:26,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:14:26,978 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 08:14:26,978 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:14:26,979 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [933338468] [2024-12-02 08:14:26,979 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [933338468] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:14:26,979 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:14:26,979 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 08:14:26,979 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [116743423] [2024-12-02 08:14:26,979 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:14:26,979 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 08:14:26,979 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:14:26,980 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 08:14:26,980 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 08:14:26,980 INFO L87 Difference]: Start difference. First operand 60975 states and 78989 transitions. Second operand has 5 states, 5 states have (on average 27.0) internal successors, (135), 4 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:14:27,663 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:14:27,663 INFO L93 Difference]: Finished difference Result 146436 states and 189661 transitions. [2024-12-02 08:14:27,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 08:14:27,664 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 27.0) internal successors, (135), 4 states have internal predecessors, (135), 0 states have call successors, (0), 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 135 [2024-12-02 08:14:27,664 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:14:27,746 INFO L225 Difference]: With dead ends: 146436 [2024-12-02 08:14:27,746 INFO L226 Difference]: Without dead ends: 85527 [2024-12-02 08:14:27,781 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-12-02 08:14:27,781 INFO L435 NwaCegarLoop]: 219 mSDtfsCounter, 1429 mSDsluCounter, 136 mSDsCounter, 0 mSdLazyCounter, 230 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1429 SdHoareTripleChecker+Valid, 355 SdHoareTripleChecker+Invalid, 238 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 230 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-12-02 08:14:27,781 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1429 Valid, 355 Invalid, 238 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 230 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-12-02 08:14:27,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85527 states. [2024-12-02 08:14:28,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85527 to 85363. [2024-12-02 08:14:28,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 85363 states, 85362 states have (on average 1.2863686417844005) internal successors, (109807), 85362 states have internal predecessors, (109807), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:14:28,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85363 states to 85363 states and 109807 transitions. [2024-12-02 08:14:28,868 INFO L78 Accepts]: Start accepts. Automaton has 85363 states and 109807 transitions. Word has length 135 [2024-12-02 08:14:28,868 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:14:28,868 INFO L471 AbstractCegarLoop]: Abstraction has 85363 states and 109807 transitions. [2024-12-02 08:14:28,868 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 27.0) internal successors, (135), 4 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:14:28,868 INFO L276 IsEmpty]: Start isEmpty. Operand 85363 states and 109807 transitions. [2024-12-02 08:14:28,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-12-02 08:14:28,894 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:14:28,894 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:14:28,894 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2024-12-02 08:14:28,894 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:14:28,895 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:14:28,895 INFO L85 PathProgramCache]: Analyzing trace with hash -984906288, now seen corresponding path program 1 times [2024-12-02 08:14:28,895 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:14:28,895 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1695024761] [2024-12-02 08:14:28,895 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:14:28,895 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:14:28,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:14:29,012 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 08:14:29,012 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:14:29,012 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1695024761] [2024-12-02 08:14:29,012 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1695024761] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:14:29,012 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:14:29,013 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 08:14:29,013 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [779106014] [2024-12-02 08:14:29,013 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:14:29,013 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 08:14:29,013 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:14:29,014 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 08:14:29,014 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-12-02 08:14:29,014 INFO L87 Difference]: Start difference. First operand 85363 states and 109807 transitions. Second operand has 7 states, 7 states have (on average 19.285714285714285) internal successors, (135), 6 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:14:29,517 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:14:29,517 INFO L93 Difference]: Finished difference Result 104746 states and 134282 transitions. [2024-12-02 08:14:29,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-02 08:14:29,518 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 19.285714285714285) internal successors, (135), 6 states have internal predecessors, (135), 0 states have call successors, (0), 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 135 [2024-12-02 08:14:29,518 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:14:29,836 INFO L225 Difference]: With dead ends: 104746 [2024-12-02 08:14:29,836 INFO L226 Difference]: Without dead ends: 89115 [2024-12-02 08:14:29,848 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2024-12-02 08:14:29,848 INFO L435 NwaCegarLoop]: 216 mSDtfsCounter, 1389 mSDsluCounter, 286 mSDsCounter, 0 mSdLazyCounter, 334 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1389 SdHoareTripleChecker+Valid, 502 SdHoareTripleChecker+Invalid, 348 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 334 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-12-02 08:14:29,848 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1389 Valid, 502 Invalid, 348 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 334 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-12-02 08:14:29,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89115 states. [2024-12-02 08:14:30,457 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89115 to 85459. [2024-12-02 08:14:30,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 85459 states, 85458 states have (on average 1.286140560275223) internal successors, (109911), 85458 states have internal predecessors, (109911), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:14:30,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85459 states to 85459 states and 109911 transitions. [2024-12-02 08:14:30,852 INFO L78 Accepts]: Start accepts. Automaton has 85459 states and 109911 transitions. Word has length 135 [2024-12-02 08:14:30,852 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:14:30,852 INFO L471 AbstractCegarLoop]: Abstraction has 85459 states and 109911 transitions. [2024-12-02 08:14:30,852 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 19.285714285714285) internal successors, (135), 6 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:14:30,852 INFO L276 IsEmpty]: Start isEmpty. Operand 85459 states and 109911 transitions. [2024-12-02 08:14:30,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-12-02 08:14:30,877 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:14:30,877 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:14:30,877 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2024-12-02 08:14:30,877 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:14:30,877 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:14:30,877 INFO L85 PathProgramCache]: Analyzing trace with hash -248675613, now seen corresponding path program 1 times [2024-12-02 08:14:30,877 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:14:30,878 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1276247458] [2024-12-02 08:14:30,878 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:14:30,878 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:14:30,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:14:30,970 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 08:14:30,970 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:14:30,970 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1276247458] [2024-12-02 08:14:30,970 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1276247458] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:14:30,970 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:14:30,970 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 08:14:30,970 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [840205410] [2024-12-02 08:14:30,970 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:14:30,971 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 08:14:30,971 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:14:30,971 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 08:14:30,971 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 08:14:30,971 INFO L87 Difference]: Start difference. First operand 85459 states and 109911 transitions. Second operand has 5 states, 5 states have (on average 27.0) internal successors, (135), 4 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:14:31,560 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:14:31,561 INFO L93 Difference]: Finished difference Result 202290 states and 259894 transitions. [2024-12-02 08:14:31,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 08:14:31,561 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 27.0) internal successors, (135), 4 states have internal predecessors, (135), 0 states have call successors, (0), 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 135 [2024-12-02 08:14:31,561 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:14:31,666 INFO L225 Difference]: With dead ends: 202290 [2024-12-02 08:14:31,666 INFO L226 Difference]: Without dead ends: 117298 [2024-12-02 08:14:31,706 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-12-02 08:14:31,706 INFO L435 NwaCegarLoop]: 219 mSDtfsCounter, 1277 mSDsluCounter, 129 mSDsCounter, 0 mSdLazyCounter, 206 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1277 SdHoareTripleChecker+Valid, 348 SdHoareTripleChecker+Invalid, 214 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 206 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 08:14:31,707 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1277 Valid, 348 Invalid, 214 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 206 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 08:14:31,761 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117298 states. [2024-12-02 08:14:33,031 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117298 to 117072. [2024-12-02 08:14:33,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 117072 states, 117071 states have (on average 1.2750723919672677) internal successors, (149274), 117071 states have internal predecessors, (149274), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:14:33,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117072 states to 117072 states and 149274 transitions. [2024-12-02 08:14:33,253 INFO L78 Accepts]: Start accepts. Automaton has 117072 states and 149274 transitions. Word has length 135 [2024-12-02 08:14:33,253 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:14:33,253 INFO L471 AbstractCegarLoop]: Abstraction has 117072 states and 149274 transitions. [2024-12-02 08:14:33,253 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 27.0) internal successors, (135), 4 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:14:33,253 INFO L276 IsEmpty]: Start isEmpty. Operand 117072 states and 149274 transitions. [2024-12-02 08:14:33,289 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-12-02 08:14:33,289 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:14:33,289 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:14:33,289 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2024-12-02 08:14:33,289 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:14:33,289 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:14:33,290 INFO L85 PathProgramCache]: Analyzing trace with hash -1701930429, now seen corresponding path program 1 times [2024-12-02 08:14:33,290 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:14:33,290 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2011389722] [2024-12-02 08:14:33,290 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:14:33,290 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:14:33,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:14:33,410 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 08:14:33,411 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:14:33,411 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2011389722] [2024-12-02 08:14:33,411 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2011389722] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:14:33,411 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:14:33,411 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 08:14:33,411 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [905072082] [2024-12-02 08:14:33,411 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:14:33,411 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 08:14:33,411 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:14:33,412 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 08:14:33,412 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-12-02 08:14:33,412 INFO L87 Difference]: Start difference. First operand 117072 states and 149274 transitions. Second operand has 7 states, 7 states have (on average 19.285714285714285) internal successors, (135), 6 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:14:34,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:14:34,248 INFO L93 Difference]: Finished difference Result 157431 states and 200291 transitions. [2024-12-02 08:14:34,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-02 08:14:34,248 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 19.285714285714285) internal successors, (135), 6 states have internal predecessors, (135), 0 states have call successors, (0), 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 135 [2024-12-02 08:14:34,249 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:14:34,371 INFO L225 Difference]: With dead ends: 157431 [2024-12-02 08:14:34,371 INFO L226 Difference]: Without dead ends: 137231 [2024-12-02 08:14:34,402 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2024-12-02 08:14:34,402 INFO L435 NwaCegarLoop]: 213 mSDtfsCounter, 1788 mSDsluCounter, 391 mSDsCounter, 0 mSdLazyCounter, 395 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1788 SdHoareTripleChecker+Valid, 604 SdHoareTripleChecker+Invalid, 409 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 395 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-12-02 08:14:34,402 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1788 Valid, 604 Invalid, 409 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 395 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-12-02 08:14:34,467 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137231 states. [2024-12-02 08:14:35,535 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137231 to 118612. [2024-12-02 08:14:35,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 118612 states, 118611 states have (on average 1.27481430895954) internal successors, (151207), 118611 states have internal predecessors, (151207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:14:35,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118612 states to 118612 states and 151207 transitions. [2024-12-02 08:14:35,759 INFO L78 Accepts]: Start accepts. Automaton has 118612 states and 151207 transitions. Word has length 135 [2024-12-02 08:14:35,759 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:14:35,759 INFO L471 AbstractCegarLoop]: Abstraction has 118612 states and 151207 transitions. [2024-12-02 08:14:35,759 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 19.285714285714285) internal successors, (135), 6 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:14:35,760 INFO L276 IsEmpty]: Start isEmpty. Operand 118612 states and 151207 transitions. [2024-12-02 08:14:35,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-12-02 08:14:35,796 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:14:35,796 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:14:35,796 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2024-12-02 08:14:35,797 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:14:35,797 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:14:35,797 INFO L85 PathProgramCache]: Analyzing trace with hash -2064524235, now seen corresponding path program 1 times [2024-12-02 08:14:35,797 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:14:35,797 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [821632373] [2024-12-02 08:14:35,797 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:14:35,797 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:14:35,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:14:35,861 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 08:14:35,861 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:14:35,861 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [821632373] [2024-12-02 08:14:35,862 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [821632373] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:14:35,862 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:14:35,862 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 08:14:35,862 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1508158625] [2024-12-02 08:14:35,862 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:14:35,862 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 08:14:35,862 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:14:35,863 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 08:14:35,863 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 08:14:35,863 INFO L87 Difference]: Start difference. First operand 118612 states and 151207 transitions. Second operand has 3 states, 3 states have (on average 45.0) internal successors, (135), 3 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:14:36,875 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:14:36,875 INFO L93 Difference]: Finished difference Result 346285 states and 440627 transitions. [2024-12-02 08:14:36,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 08:14:36,876 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 45.0) internal successors, (135), 3 states have internal predecessors, (135), 0 states have call successors, (0), 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 135 [2024-12-02 08:14:36,876 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:14:37,108 INFO L225 Difference]: With dead ends: 346285 [2024-12-02 08:14:37,109 INFO L226 Difference]: Without dead ends: 235794 [2024-12-02 08:14:37,168 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 08:14:37,169 INFO L435 NwaCegarLoop]: 492 mSDtfsCounter, 197 mSDsluCounter, 222 mSDsCounter, 0 mSdLazyCounter, 233 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 197 SdHoareTripleChecker+Valid, 714 SdHoareTripleChecker+Invalid, 241 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 233 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 08:14:37,169 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [197 Valid, 714 Invalid, 241 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 233 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 08:14:37,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 235794 states. [2024-12-02 08:14:39,508 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 235794 to 235257. [2024-12-02 08:14:39,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 235257 states, 235256 states have (on average 1.265736049239977) internal successors, (297772), 235256 states have internal predecessors, (297772), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:14:39,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 235257 states to 235257 states and 297772 transitions. [2024-12-02 08:14:39,970 INFO L78 Accepts]: Start accepts. Automaton has 235257 states and 297772 transitions. Word has length 135 [2024-12-02 08:14:39,970 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:14:39,970 INFO L471 AbstractCegarLoop]: Abstraction has 235257 states and 297772 transitions. [2024-12-02 08:14:39,970 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 45.0) internal successors, (135), 3 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:14:39,970 INFO L276 IsEmpty]: Start isEmpty. Operand 235257 states and 297772 transitions. [2024-12-02 08:14:40,052 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-12-02 08:14:40,052 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:14:40,052 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:14:40,052 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2024-12-02 08:14:40,052 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:14:40,053 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:14:40,053 INFO L85 PathProgramCache]: Analyzing trace with hash 455599098, now seen corresponding path program 1 times [2024-12-02 08:14:40,053 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:14:40,053 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1911135439] [2024-12-02 08:14:40,053 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:14:40,053 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:14:40,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:14:40,466 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 08:14:40,467 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:14:40,467 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1911135439] [2024-12-02 08:14:40,467 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1911135439] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:14:40,467 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:14:40,467 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 08:14:40,467 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [223580926] [2024-12-02 08:14:40,467 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:14:40,467 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 08:14:40,467 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:14:40,467 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 08:14:40,468 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 08:14:40,468 INFO L87 Difference]: Start difference. First operand 235257 states and 297772 transitions. Second operand has 5 states, 5 states have (on average 27.0) internal successors, (135), 4 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:14:41,626 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:14:41,626 INFO L93 Difference]: Finished difference Result 469074 states and 594443 transitions. [2024-12-02 08:14:41,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 08:14:41,627 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 27.0) internal successors, (135), 4 states have internal predecessors, (135), 0 states have call successors, (0), 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 135 [2024-12-02 08:14:41,627 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:14:41,880 INFO L225 Difference]: With dead ends: 469074 [2024-12-02 08:14:41,880 INFO L226 Difference]: Without dead ends: 241871 [2024-12-02 08:14:41,981 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-12-02 08:14:41,982 INFO L435 NwaCegarLoop]: 217 mSDtfsCounter, 1330 mSDsluCounter, 127 mSDsCounter, 0 mSdLazyCounter, 210 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1330 SdHoareTripleChecker+Valid, 344 SdHoareTripleChecker+Invalid, 220 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 210 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 08:14:41,982 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1330 Valid, 344 Invalid, 220 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 210 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 08:14:42,100 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 241871 states. [2024-12-02 08:14:44,844 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 241871 to 241410. [2024-12-02 08:14:44,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 241410 states, 241409 states have (on average 1.262260313410022) internal successors, (304721), 241409 states have internal predecessors, (304721), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:14:45,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 241410 states to 241410 states and 304721 transitions. [2024-12-02 08:14:45,239 INFO L78 Accepts]: Start accepts. Automaton has 241410 states and 304721 transitions. Word has length 135 [2024-12-02 08:14:45,239 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:14:45,239 INFO L471 AbstractCegarLoop]: Abstraction has 241410 states and 304721 transitions. [2024-12-02 08:14:45,239 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 27.0) internal successors, (135), 4 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:14:45,239 INFO L276 IsEmpty]: Start isEmpty. Operand 241410 states and 304721 transitions. [2024-12-02 08:14:45,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-12-02 08:14:45,290 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:14:45,290 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:14:45,290 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2024-12-02 08:14:45,291 INFO L396 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:14:45,291 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:14:45,291 INFO L85 PathProgramCache]: Analyzing trace with hash -1592048806, now seen corresponding path program 1 times [2024-12-02 08:14:45,291 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:14:45,291 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [53094970] [2024-12-02 08:14:45,291 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:14:45,291 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:14:45,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:14:45,414 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 08:14:45,414 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:14:45,414 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [53094970] [2024-12-02 08:14:45,414 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [53094970] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:14:45,414 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:14:45,414 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 08:14:45,414 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1146463108] [2024-12-02 08:14:45,414 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:14:45,414 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 08:14:45,415 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:14:45,415 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 08:14:45,415 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-12-02 08:14:45,415 INFO L87 Difference]: Start difference. First operand 241410 states and 304721 transitions. Second operand has 7 states, 7 states have (on average 19.285714285714285) internal successors, (135), 6 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:14:46,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:14:46,726 INFO L93 Difference]: Finished difference Result 347210 states and 436720 transitions. [2024-12-02 08:14:46,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-02 08:14:46,727 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 19.285714285714285) internal successors, (135), 6 states have internal predecessors, (135), 0 states have call successors, (0), 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 135 [2024-12-02 08:14:46,727 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:14:46,963 INFO L225 Difference]: With dead ends: 347210 [2024-12-02 08:14:46,963 INFO L226 Difference]: Without dead ends: 283244 [2024-12-02 08:14:47,000 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2024-12-02 08:14:47,000 INFO L435 NwaCegarLoop]: 236 mSDtfsCounter, 1710 mSDsluCounter, 406 mSDsCounter, 0 mSdLazyCounter, 437 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1710 SdHoareTripleChecker+Valid, 642 SdHoareTripleChecker+Invalid, 447 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 437 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-12-02 08:14:47,000 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1710 Valid, 642 Invalid, 447 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 437 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-12-02 08:14:47,108 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 283244 states. [2024-12-02 08:14:49,371 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 283244 to 241765. [2024-12-02 08:14:49,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 241765 states, 241764 states have (on average 1.262156483181946) internal successors, (305144), 241764 states have internal predecessors, (305144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:14:49,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 241765 states to 241765 states and 305144 transitions. [2024-12-02 08:14:49,826 INFO L78 Accepts]: Start accepts. Automaton has 241765 states and 305144 transitions. Word has length 135 [2024-12-02 08:14:49,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:14:49,826 INFO L471 AbstractCegarLoop]: Abstraction has 241765 states and 305144 transitions. [2024-12-02 08:14:49,826 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 19.285714285714285) internal successors, (135), 6 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:14:49,826 INFO L276 IsEmpty]: Start isEmpty. Operand 241765 states and 305144 transitions. [2024-12-02 08:14:49,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-12-02 08:14:49,881 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:14:49,881 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:14:49,881 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2024-12-02 08:14:49,881 INFO L396 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:14:49,881 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:14:49,881 INFO L85 PathProgramCache]: Analyzing trace with hash 105807364, now seen corresponding path program 1 times [2024-12-02 08:14:49,881 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:14:49,881 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1796556337] [2024-12-02 08:14:49,881 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:14:49,882 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:14:49,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:14:49,964 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 08:14:49,964 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:14:49,964 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1796556337] [2024-12-02 08:14:49,964 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1796556337] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:14:49,964 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:14:49,965 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 08:14:49,965 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [380775120] [2024-12-02 08:14:49,965 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:14:49,965 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 08:14:49,965 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:14:49,965 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 08:14:49,965 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 08:14:49,966 INFO L87 Difference]: Start difference. First operand 241765 states and 305144 transitions. Second operand has 5 states, 5 states have (on average 27.0) internal successors, (135), 4 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:14:51,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:14:51,477 INFO L93 Difference]: Finished difference Result 568768 states and 717520 transitions. [2024-12-02 08:14:51,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 08:14:51,478 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 27.0) internal successors, (135), 4 states have internal predecessors, (135), 0 states have call successors, (0), 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 135 [2024-12-02 08:14:51,478 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:14:51,821 INFO L225 Difference]: With dead ends: 568768 [2024-12-02 08:14:51,821 INFO L226 Difference]: Without dead ends: 329036 [2024-12-02 08:14:51,931 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-12-02 08:14:51,931 INFO L435 NwaCegarLoop]: 219 mSDtfsCounter, 1284 mSDsluCounter, 128 mSDsCounter, 0 mSdLazyCounter, 200 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1284 SdHoareTripleChecker+Valid, 347 SdHoareTripleChecker+Invalid, 208 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 200 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-12-02 08:14:51,932 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1284 Valid, 347 Invalid, 208 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 200 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-12-02 08:14:52,095 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 329036 states. [2024-12-02 08:14:55,113 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 329036 to 328410. [2024-12-02 08:14:55,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 328410 states, 328409 states have (on average 1.2511015227962692) internal successors, (410873), 328409 states have internal predecessors, (410873), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:14:56,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 328410 states to 328410 states and 410873 transitions. [2024-12-02 08:14:56,211 INFO L78 Accepts]: Start accepts. Automaton has 328410 states and 410873 transitions. Word has length 135 [2024-12-02 08:14:56,211 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:14:56,211 INFO L471 AbstractCegarLoop]: Abstraction has 328410 states and 410873 transitions. [2024-12-02 08:14:56,211 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 27.0) internal successors, (135), 4 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:14:56,211 INFO L276 IsEmpty]: Start isEmpty. Operand 328410 states and 410873 transitions. [2024-12-02 08:14:56,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-12-02 08:14:56,279 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:14:56,279 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:14:56,279 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2024-12-02 08:14:56,280 INFO L396 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:14:56,280 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:14:56,280 INFO L85 PathProgramCache]: Analyzing trace with hash -187366748, now seen corresponding path program 1 times [2024-12-02 08:14:56,280 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:14:56,280 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1256019751] [2024-12-02 08:14:56,280 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:14:56,280 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:14:56,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:14:56,403 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 08:14:56,403 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:14:56,403 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1256019751] [2024-12-02 08:14:56,403 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1256019751] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:14:56,403 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:14:56,403 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 08:14:56,403 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1489105202] [2024-12-02 08:14:56,403 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:14:56,403 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 08:14:56,403 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:14:56,404 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 08:14:56,404 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-12-02 08:14:56,404 INFO L87 Difference]: Start difference. First operand 328410 states and 410873 transitions. Second operand has 7 states, 7 states have (on average 19.285714285714285) internal successors, (135), 6 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:14:57,636 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:14:57,636 INFO L93 Difference]: Finished difference Result 448339 states and 561193 transitions. [2024-12-02 08:14:57,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-02 08:14:57,637 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 19.285714285714285) internal successors, (135), 6 states have internal predecessors, (135), 0 states have call successors, (0), 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 135 [2024-12-02 08:14:57,637 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:14:58,448 INFO L225 Difference]: With dead ends: 448339 [2024-12-02 08:14:58,449 INFO L226 Difference]: Without dead ends: 391117 [2024-12-02 08:14:58,504 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2024-12-02 08:14:58,505 INFO L435 NwaCegarLoop]: 213 mSDtfsCounter, 2003 mSDsluCounter, 422 mSDsCounter, 0 mSdLazyCounter, 421 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2003 SdHoareTripleChecker+Valid, 635 SdHoareTripleChecker+Invalid, 440 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 421 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-12-02 08:14:58,505 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2003 Valid, 635 Invalid, 440 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 421 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-12-02 08:14:58,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 391117 states. [2024-12-02 08:15:01,367 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 391117 to 329034. [2024-12-02 08:15:01,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 329034 states, 329033 states have (on average 1.2510933553777281) internal successors, (411651), 329033 states have internal predecessors, (411651), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:15:02,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 329034 states to 329034 states and 411651 transitions. [2024-12-02 08:15:02,366 INFO L78 Accepts]: Start accepts. Automaton has 329034 states and 411651 transitions. Word has length 135 [2024-12-02 08:15:02,366 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:15:02,366 INFO L471 AbstractCegarLoop]: Abstraction has 329034 states and 411651 transitions. [2024-12-02 08:15:02,366 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 19.285714285714285) internal successors, (135), 6 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:15:02,366 INFO L276 IsEmpty]: Start isEmpty. Operand 329034 states and 411651 transitions. [2024-12-02 08:15:02,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-12-02 08:15:02,435 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:15:02,435 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:15:02,435 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2024-12-02 08:15:02,435 INFO L396 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:15:02,436 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:15:02,436 INFO L85 PathProgramCache]: Analyzing trace with hash -1526389842, now seen corresponding path program 1 times [2024-12-02 08:15:02,436 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:15:02,436 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2114474955] [2024-12-02 08:15:02,436 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:15:02,436 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:15:02,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:15:02,548 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 08:15:02,548 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:15:02,548 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2114474955] [2024-12-02 08:15:02,548 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2114474955] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:15:02,548 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:15:02,549 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 08:15:02,549 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [60516436] [2024-12-02 08:15:02,549 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:15:02,549 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 08:15:02,549 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:15:02,550 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 08:15:02,550 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-12-02 08:15:02,550 INFO L87 Difference]: Start difference. First operand 329034 states and 411651 transitions. Second operand has 7 states, 7 states have (on average 19.285714285714285) internal successors, (135), 6 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:15:04,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:15:04,434 INFO L93 Difference]: Finished difference Result 559246 states and 694647 transitions. [2024-12-02 08:15:04,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-02 08:15:04,435 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 19.285714285714285) internal successors, (135), 6 states have internal predecessors, (135), 0 states have call successors, (0), 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 135 [2024-12-02 08:15:04,435 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:15:04,931 INFO L225 Difference]: With dead ends: 559246 [2024-12-02 08:15:04,931 INFO L226 Difference]: Without dead ends: 450328 [2024-12-02 08:15:05,012 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=56, Invalid=100, Unknown=0, NotChecked=0, Total=156 [2024-12-02 08:15:05,013 INFO L435 NwaCegarLoop]: 211 mSDtfsCounter, 2203 mSDsluCounter, 453 mSDsCounter, 0 mSdLazyCounter, 453 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2203 SdHoareTripleChecker+Valid, 664 SdHoareTripleChecker+Invalid, 474 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 453 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-12-02 08:15:05,013 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2203 Valid, 664 Invalid, 474 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 453 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-12-02 08:15:05,239 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 450328 states.