./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/seq-mthreaded-reduced/pals_opt-floodmax.4.1.ufo.UNBOUNDED.pals.c.v+cfa-reducer.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a0165632 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf6f3919-acf4-49e2-a567-aa0224ef8cb2/bin/uautomizer-verify-jihMAELWvX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf6f3919-acf4-49e2-a567-aa0224ef8cb2/bin/uautomizer-verify-jihMAELWvX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf6f3919-acf4-49e2-a567-aa0224ef8cb2/bin/uautomizer-verify-jihMAELWvX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf6f3919-acf4-49e2-a567-aa0224ef8cb2/bin/uautomizer-verify-jihMAELWvX/config/AutomizerReach.xml -i ../../sv-benchmarks/c/seq-mthreaded-reduced/pals_opt-floodmax.4.1.ufo.UNBOUNDED.pals.c.v+cfa-reducer.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf6f3919-acf4-49e2-a567-aa0224ef8cb2/bin/uautomizer-verify-jihMAELWvX/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf6f3919-acf4-49e2-a567-aa0224ef8cb2/bin/uautomizer-verify-jihMAELWvX --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 37e549e4fa4b7b530556a3e37b4e2d4806fbb92dab5da0115a6c327b48fa0370 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-08 18:21:53,678 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 18:21:53,768 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf6f3919-acf4-49e2-a567-aa0224ef8cb2/bin/uautomizer-verify-jihMAELWvX/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-08 18:21:53,775 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 18:21:53,776 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-08 18:21:53,816 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 18:21:53,818 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-08 18:21:53,819 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-08 18:21:53,820 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-08 18:21:53,821 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-08 18:21:53,823 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 18:21:53,824 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-08 18:21:53,824 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 18:21:53,825 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 18:21:53,825 INFO L153 SettingsManager]: * Use SBE=true [2024-11-08 18:21:53,825 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 18:21:53,826 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 18:21:53,827 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-08 18:21:53,827 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-08 18:21:53,830 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-08 18:21:53,830 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 18:21:53,831 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 18:21:53,832 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 18:21:53,833 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 18:21:53,833 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 18:21:53,833 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-08 18:21:53,833 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 18:21:53,834 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 18:21:53,834 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 18:21:53,834 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-08 18:21:53,835 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-08 18:21:53,835 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-08 18:21:53,835 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 18:21:53,842 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 18:21:53,843 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 18:21:53,843 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 18:21:53,843 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-08 18:21:53,844 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-08 18:21:53,844 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-08 18:21:53,844 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-08 18:21:53,844 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-08 18:21:53,845 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-08 18:21:53,845 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf6f3919-acf4-49e2-a567-aa0224ef8cb2/bin/uautomizer-verify-jihMAELWvX/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf6f3919-acf4-49e2-a567-aa0224ef8cb2/bin/uautomizer-verify-jihMAELWvX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 37e549e4fa4b7b530556a3e37b4e2d4806fbb92dab5da0115a6c327b48fa0370 [2024-11-08 18:21:54,153 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 18:21:54,183 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 18:21:54,186 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 18:21:54,188 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 18:21:54,189 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 18:21:54,191 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf6f3919-acf4-49e2-a567-aa0224ef8cb2/bin/uautomizer-verify-jihMAELWvX/../../sv-benchmarks/c/seq-mthreaded-reduced/pals_opt-floodmax.4.1.ufo.UNBOUNDED.pals.c.v+cfa-reducer.c Unable to find full path for "g++" [2024-11-08 18:21:56,231 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 18:21:56,485 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 18:21:56,486 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf6f3919-acf4-49e2-a567-aa0224ef8cb2/sv-benchmarks/c/seq-mthreaded-reduced/pals_opt-floodmax.4.1.ufo.UNBOUNDED.pals.c.v+cfa-reducer.c [2024-11-08 18:21:56,501 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf6f3919-acf4-49e2-a567-aa0224ef8cb2/bin/uautomizer-verify-jihMAELWvX/data/191f96e8b/f11f356b8f0546d6b2b7271dbf57c965/FLAG6986fd9f8 [2024-11-08 18:21:56,515 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf6f3919-acf4-49e2-a567-aa0224ef8cb2/bin/uautomizer-verify-jihMAELWvX/data/191f96e8b/f11f356b8f0546d6b2b7271dbf57c965 [2024-11-08 18:21:56,518 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 18:21:56,519 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 18:21:56,521 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 18:21:56,521 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 18:21:56,528 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 18:21:56,531 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 06:21:56" (1/1) ... [2024-11-08 18:21:56,532 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@52862ede and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:21:56, skipping insertion in model container [2024-11-08 18:21:56,533 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 06:21:56" (1/1) ... [2024-11-08 18:21:56,601 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 18:21:56,991 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_cf6f3919-acf4-49e2-a567-aa0224ef8cb2/sv-benchmarks/c/seq-mthreaded-reduced/pals_opt-floodmax.4.1.ufo.UNBOUNDED.pals.c.v+cfa-reducer.c[13490,13503] [2024-11-08 18:21:57,093 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 18:21:57,114 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 18:21:57,219 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_cf6f3919-acf4-49e2-a567-aa0224ef8cb2/sv-benchmarks/c/seq-mthreaded-reduced/pals_opt-floodmax.4.1.ufo.UNBOUNDED.pals.c.v+cfa-reducer.c[13490,13503] [2024-11-08 18:21:57,271 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 18:21:57,302 INFO L204 MainTranslator]: Completed translation [2024-11-08 18:21:57,302 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:21:57 WrapperNode [2024-11-08 18:21:57,302 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 18:21:57,303 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 18:21:57,304 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 18:21:57,304 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 18:21:57,310 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:21:57" (1/1) ... [2024-11-08 18:21:57,328 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:21:57" (1/1) ... [2024-11-08 18:21:57,414 INFO L138 Inliner]: procedures = 24, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 1415 [2024-11-08 18:21:57,414 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 18:21:57,415 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 18:21:57,415 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 18:21:57,415 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 18:21:57,428 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:21:57" (1/1) ... [2024-11-08 18:21:57,429 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:21:57" (1/1) ... [2024-11-08 18:21:57,446 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:21:57" (1/1) ... [2024-11-08 18:21:57,492 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-08 18:21:57,495 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:21:57" (1/1) ... [2024-11-08 18:21:57,495 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:21:57" (1/1) ... [2024-11-08 18:21:57,523 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:21:57" (1/1) ... [2024-11-08 18:21:57,538 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:21:57" (1/1) ... [2024-11-08 18:21:57,550 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:21:57" (1/1) ... [2024-11-08 18:21:57,555 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:21:57" (1/1) ... [2024-11-08 18:21:57,572 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 18:21:57,573 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 18:21:57,573 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 18:21:57,574 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 18:21:57,575 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:21:57" (1/1) ... [2024-11-08 18:21:57,581 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 18:21:57,593 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf6f3919-acf4-49e2-a567-aa0224ef8cb2/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:21:57,613 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf6f3919-acf4-49e2-a567-aa0224ef8cb2/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-08 18:21:57,643 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf6f3919-acf4-49e2-a567-aa0224ef8cb2/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-08 18:21:57,682 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 18:21:57,682 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-08 18:21:57,682 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 18:21:57,683 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 18:21:57,933 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 18:21:57,936 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 18:21:59,461 INFO L? ?]: Removed 111 outVars from TransFormulas that were not future-live. [2024-11-08 18:21:59,461 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 18:21:59,493 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 18:21:59,493 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-08 18:21:59,494 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 06:21:59 BoogieIcfgContainer [2024-11-08 18:21:59,494 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 18:21:59,498 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-08 18:21:59,498 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-08 18:21:59,501 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-08 18:21:59,501 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.11 06:21:56" (1/3) ... [2024-11-08 18:21:59,503 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d5a39a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 06:21:59, skipping insertion in model container [2024-11-08 18:21:59,503 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:21:57" (2/3) ... [2024-11-08 18:21:59,504 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d5a39a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 06:21:59, skipping insertion in model container [2024-11-08 18:21:59,504 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 06:21:59" (3/3) ... [2024-11-08 18:21:59,506 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_opt-floodmax.4.1.ufo.UNBOUNDED.pals.c.v+cfa-reducer.c [2024-11-08 18:21:59,525 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-08 18:21:59,526 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-08 18:21:59,624 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-08 18:21:59,629 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;@2d2d5243, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 18:21:59,630 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-08 18:21:59,637 INFO L276 IsEmpty]: Start isEmpty. Operand has 338 states, 336 states have (on average 1.7797619047619047) internal successors, (598), 337 states have internal predecessors, (598), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:21:59,652 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2024-11-08 18:21:59,653 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:21:59,653 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:21:59,654 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:21:59,659 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:21:59,660 INFO L85 PathProgramCache]: Analyzing trace with hash -139604630, now seen corresponding path program 1 times [2024-11-08 18:21:59,673 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:21:59,674 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [732287711] [2024-11-08 18:21:59,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:21:59,675 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:22:00,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:22:00,438 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:22:00,438 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:22:00,439 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [732287711] [2024-11-08 18:22:00,440 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [732287711] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:22:00,440 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:22:00,440 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 18:22:00,442 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1682349738] [2024-11-08 18:22:00,443 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:22:00,448 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 18:22:00,448 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:22:00,478 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 18:22:00,479 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 18:22:00,484 INFO L87 Difference]: Start difference. First operand has 338 states, 336 states have (on average 1.7797619047619047) internal successors, (598), 337 states have internal predecessors, (598), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 35.333333333333336) internal successors, (106), 3 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:22:00,701 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:22:00,702 INFO L93 Difference]: Finished difference Result 640 states and 1100 transitions. [2024-11-08 18:22:00,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 18:22:00,705 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.333333333333336) internal successors, (106), 3 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 106 [2024-11-08 18:22:00,706 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:22:00,725 INFO L225 Difference]: With dead ends: 640 [2024-11-08 18:22:00,728 INFO L226 Difference]: Without dead ends: 477 [2024-11-08 18:22:00,731 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 18:22:00,735 INFO L432 NwaCegarLoop]: 592 mSDtfsCounter, 254 mSDsluCounter, 530 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 254 SdHoareTripleChecker+Valid, 1122 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 18:22:00,737 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [254 Valid, 1122 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 18:22:00,761 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 477 states. [2024-11-08 18:22:00,827 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 477 to 474. [2024-11-08 18:22:00,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 474 states, 473 states have (on average 1.668076109936575) internal successors, (789), 473 states have internal predecessors, (789), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:22:00,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 474 states to 474 states and 789 transitions. [2024-11-08 18:22:00,840 INFO L78 Accepts]: Start accepts. Automaton has 474 states and 789 transitions. Word has length 106 [2024-11-08 18:22:00,841 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:22:00,841 INFO L471 AbstractCegarLoop]: Abstraction has 474 states and 789 transitions. [2024-11-08 18:22:00,841 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.333333333333336) internal successors, (106), 3 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:22:00,842 INFO L276 IsEmpty]: Start isEmpty. Operand 474 states and 789 transitions. [2024-11-08 18:22:00,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-11-08 18:22:00,849 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:22:00,850 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:22:00,850 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-08 18:22:00,850 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:22:00,851 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:22:00,853 INFO L85 PathProgramCache]: Analyzing trace with hash 1315500352, now seen corresponding path program 1 times [2024-11-08 18:22:00,853 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:22:00,854 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1444236280] [2024-11-08 18:22:00,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:22:00,854 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:22:00,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:22:01,185 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:22:01,186 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:22:01,186 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1444236280] [2024-11-08 18:22:01,187 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1444236280] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:22:01,187 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:22:01,187 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 18:22:01,187 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [115938663] [2024-11-08 18:22:01,188 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:22:01,189 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 18:22:01,189 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:22:01,190 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 18:22:01,191 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 18:22:01,191 INFO L87 Difference]: Start difference. First operand 474 states and 789 transitions. Second operand has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:22:01,283 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:22:01,284 INFO L93 Difference]: Finished difference Result 1040 states and 1729 transitions. [2024-11-08 18:22:01,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 18:22:01,285 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 0 states have call successors, (0), 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 109 [2024-11-08 18:22:01,285 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:22:01,289 INFO L225 Difference]: With dead ends: 1040 [2024-11-08 18:22:01,290 INFO L226 Difference]: Without dead ends: 747 [2024-11-08 18:22:01,291 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 18:22:01,292 INFO L432 NwaCegarLoop]: 557 mSDtfsCounter, 229 mSDsluCounter, 527 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 229 SdHoareTripleChecker+Valid, 1084 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 18:22:01,293 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [229 Valid, 1084 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 18:22:01,295 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 747 states. [2024-11-08 18:22:01,330 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 747 to 743. [2024-11-08 18:22:01,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 743 states, 742 states have (on average 1.6630727762803235) internal successors, (1234), 742 states have internal predecessors, (1234), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:22:01,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 743 states to 743 states and 1234 transitions. [2024-11-08 18:22:01,336 INFO L78 Accepts]: Start accepts. Automaton has 743 states and 1234 transitions. Word has length 109 [2024-11-08 18:22:01,336 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:22:01,336 INFO L471 AbstractCegarLoop]: Abstraction has 743 states and 1234 transitions. [2024-11-08 18:22:01,337 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:22:01,337 INFO L276 IsEmpty]: Start isEmpty. Operand 743 states and 1234 transitions. [2024-11-08 18:22:01,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2024-11-08 18:22:01,341 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:22:01,341 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:22:01,341 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-08 18:22:01,342 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:22:01,342 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:22:01,342 INFO L85 PathProgramCache]: Analyzing trace with hash 1899343221, now seen corresponding path program 1 times [2024-11-08 18:22:01,343 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:22:01,343 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1157289251] [2024-11-08 18:22:01,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:22:01,343 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:22:01,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:22:01,610 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:22:01,610 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:22:01,611 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1157289251] [2024-11-08 18:22:01,611 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1157289251] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:22:01,611 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:22:01,612 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 18:22:01,612 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [231323710] [2024-11-08 18:22:01,612 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:22:01,613 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 18:22:01,613 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:22:01,614 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 18:22:01,614 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 18:22:01,615 INFO L87 Difference]: Start difference. First operand 743 states and 1234 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) [2024-11-08 18:22:01,682 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:22:01,682 INFO L93 Difference]: Finished difference Result 1827 states and 3028 transitions. [2024-11-08 18:22:01,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 18:22:01,683 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 [2024-11-08 18:22:01,684 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:22:01,689 INFO L225 Difference]: With dead ends: 1827 [2024-11-08 18:22:01,690 INFO L226 Difference]: Without dead ends: 1265 [2024-11-08 18:22:01,691 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 18:22:01,692 INFO L432 NwaCegarLoop]: 557 mSDtfsCounter, 222 mSDsluCounter, 528 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 222 SdHoareTripleChecker+Valid, 1085 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 18:22:01,693 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [222 Valid, 1085 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 18:22:01,696 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1265 states. [2024-11-08 18:22:01,732 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1265 to 1259. [2024-11-08 18:22:01,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1259 states, 1258 states have (on average 1.6550079491255962) internal successors, (2082), 1258 states have internal predecessors, (2082), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:22:01,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1259 states to 1259 states and 2082 transitions. [2024-11-08 18:22:01,741 INFO L78 Accepts]: Start accepts. Automaton has 1259 states and 2082 transitions. Word has length 112 [2024-11-08 18:22:01,742 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:22:01,742 INFO L471 AbstractCegarLoop]: Abstraction has 1259 states and 2082 transitions. [2024-11-08 18:22:01,743 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) [2024-11-08 18:22:01,743 INFO L276 IsEmpty]: Start isEmpty. Operand 1259 states and 2082 transitions. [2024-11-08 18:22:01,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2024-11-08 18:22:01,746 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:22:01,747 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:22:01,747 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-08 18:22:01,747 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:22:01,749 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:22:01,749 INFO L85 PathProgramCache]: Analyzing trace with hash -634176207, now seen corresponding path program 1 times [2024-11-08 18:22:01,749 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:22:01,750 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1534347909] [2024-11-08 18:22:01,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:22:01,750 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:22:01,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:22:02,045 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:22:02,045 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:22:02,048 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1534347909] [2024-11-08 18:22:02,048 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1534347909] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:22:02,049 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:22:02,049 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 18:22:02,049 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1326994079] [2024-11-08 18:22:02,049 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:22:02,050 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 18:22:02,050 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:22:02,051 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 18:22:02,051 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 18:22:02,051 INFO L87 Difference]: Start difference. First operand 1259 states and 2082 transitions. Second operand has 3 states, 3 states have (on average 38.333333333333336) internal successors, (115), 3 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:22:02,124 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:22:02,125 INFO L93 Difference]: Finished difference Result 3335 states and 5500 transitions. [2024-11-08 18:22:02,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 18:22:02,125 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 38.333333333333336) internal successors, (115), 3 states have internal predecessors, (115), 0 states have call successors, (0), 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 115 [2024-11-08 18:22:02,126 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:22:02,134 INFO L225 Difference]: With dead ends: 3335 [2024-11-08 18:22:02,134 INFO L226 Difference]: Without dead ends: 2257 [2024-11-08 18:22:02,136 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 18:22:02,137 INFO L432 NwaCegarLoop]: 557 mSDtfsCounter, 215 mSDsluCounter, 529 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 215 SdHoareTripleChecker+Valid, 1086 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 18:22:02,138 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [215 Valid, 1086 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 18:22:02,141 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2257 states. [2024-11-08 18:22:02,205 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2257 to 2247. [2024-11-08 18:22:02,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2247 states, 2246 states have (on average 1.6447016918967052) internal successors, (3694), 2246 states have internal predecessors, (3694), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:22:02,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2247 states to 2247 states and 3694 transitions. [2024-11-08 18:22:02,219 INFO L78 Accepts]: Start accepts. Automaton has 2247 states and 3694 transitions. Word has length 115 [2024-11-08 18:22:02,220 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:22:02,221 INFO L471 AbstractCegarLoop]: Abstraction has 2247 states and 3694 transitions. [2024-11-08 18:22:02,221 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.333333333333336) internal successors, (115), 3 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:22:02,221 INFO L276 IsEmpty]: Start isEmpty. Operand 2247 states and 3694 transitions. [2024-11-08 18:22:02,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2024-11-08 18:22:02,224 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:22:02,224 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:22:02,224 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-08 18:22:02,225 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:22:02,225 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:22:02,226 INFO L85 PathProgramCache]: Analyzing trace with hash -1842996660, now seen corresponding path program 1 times [2024-11-08 18:22:02,226 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:22:02,226 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [472772466] [2024-11-08 18:22:02,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:22:02,227 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:22:02,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:22:02,566 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:22:02,567 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:22:02,567 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [472772466] [2024-11-08 18:22:02,568 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [472772466] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:22:02,568 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:22:02,570 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-08 18:22:02,570 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1388046316] [2024-11-08 18:22:02,571 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:22:02,571 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 18:22:02,571 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:22:02,572 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 18:22:02,572 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-08 18:22:02,572 INFO L87 Difference]: Start difference. First operand 2247 states and 3694 transitions. Second operand has 6 states, 6 states have (on average 19.666666666666668) internal successors, (118), 6 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) [2024-11-08 18:22:03,060 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:22:03,060 INFO L93 Difference]: Finished difference Result 11827 states and 19558 transitions. [2024-11-08 18:22:03,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-08 18:22:03,061 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 19.666666666666668) internal successors, (118), 6 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 [2024-11-08 18:22:03,061 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:22:03,096 INFO L225 Difference]: With dead ends: 11827 [2024-11-08 18:22:03,096 INFO L226 Difference]: Without dead ends: 9761 [2024-11-08 18:22:03,100 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2024-11-08 18:22:03,102 INFO L432 NwaCegarLoop]: 551 mSDtfsCounter, 2216 mSDsluCounter, 4159 mSDsCounter, 0 mSdLazyCounter, 164 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2216 SdHoareTripleChecker+Valid, 4710 SdHoareTripleChecker+Invalid, 172 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 164 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-08 18:22:03,104 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2216 Valid, 4710 Invalid, 172 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 164 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-08 18:22:03,117 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9761 states. [2024-11-08 18:22:03,230 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9761 to 4177. [2024-11-08 18:22:03,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4177 states, 4176 states have (on average 1.6429597701149425) internal successors, (6861), 4176 states have internal predecessors, (6861), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:22:03,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4177 states to 4177 states and 6861 transitions. [2024-11-08 18:22:03,253 INFO L78 Accepts]: Start accepts. Automaton has 4177 states and 6861 transitions. Word has length 118 [2024-11-08 18:22:03,254 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:22:03,254 INFO L471 AbstractCegarLoop]: Abstraction has 4177 states and 6861 transitions. [2024-11-08 18:22:03,254 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 19.666666666666668) internal successors, (118), 6 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) [2024-11-08 18:22:03,255 INFO L276 IsEmpty]: Start isEmpty. Operand 4177 states and 6861 transitions. [2024-11-08 18:22:03,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2024-11-08 18:22:03,258 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:22:03,258 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:22:03,258 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-08 18:22:03,259 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:22:03,259 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:22:03,259 INFO L85 PathProgramCache]: Analyzing trace with hash -1365383642, now seen corresponding path program 1 times [2024-11-08 18:22:03,259 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:22:03,259 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [614728630] [2024-11-08 18:22:03,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:22:03,260 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:22:03,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:22:03,528 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:22:03,528 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:22:03,529 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [614728630] [2024-11-08 18:22:03,529 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [614728630] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:22:03,529 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:22:03,529 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-08 18:22:03,531 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [268308298] [2024-11-08 18:22:03,531 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:22:03,531 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 18:22:03,532 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:22:03,532 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 18:22:03,532 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 18:22:03,533 INFO L87 Difference]: Start difference. First operand 4177 states and 6861 transitions. Second operand has 4 states, 4 states have (on average 29.75) internal successors, (119), 4 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:22:03,699 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:22:03,700 INFO L93 Difference]: Finished difference Result 12275 states and 20249 transitions. [2024-11-08 18:22:03,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 18:22:03,701 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 29.75) internal successors, (119), 4 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2024-11-08 18:22:03,701 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:22:03,730 INFO L225 Difference]: With dead ends: 12275 [2024-11-08 18:22:03,730 INFO L226 Difference]: Without dead ends: 8279 [2024-11-08 18:22:03,735 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-08 18:22:03,736 INFO L432 NwaCegarLoop]: 551 mSDtfsCounter, 754 mSDsluCounter, 1126 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 754 SdHoareTripleChecker+Valid, 1677 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 18:22:03,737 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [754 Valid, 1677 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 18:22:03,745 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8279 states. [2024-11-08 18:22:03,866 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8279 to 6211. [2024-11-08 18:22:03,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6211 states, 6210 states have (on average 1.644766505636071) internal successors, (10214), 6210 states have internal predecessors, (10214), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:22:03,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6211 states to 6211 states and 10214 transitions. [2024-11-08 18:22:03,902 INFO L78 Accepts]: Start accepts. Automaton has 6211 states and 10214 transitions. Word has length 119 [2024-11-08 18:22:03,902 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:22:03,903 INFO L471 AbstractCegarLoop]: Abstraction has 6211 states and 10214 transitions. [2024-11-08 18:22:03,903 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 29.75) internal successors, (119), 4 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:22:03,903 INFO L276 IsEmpty]: Start isEmpty. Operand 6211 states and 10214 transitions. [2024-11-08 18:22:03,906 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2024-11-08 18:22:03,907 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:22:03,907 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:22:03,908 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-08 18:22:03,908 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:22:03,908 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:22:03,909 INFO L85 PathProgramCache]: Analyzing trace with hash 560276051, now seen corresponding path program 1 times [2024-11-08 18:22:03,909 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:22:03,909 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1195647775] [2024-11-08 18:22:03,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:22:03,909 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:22:03,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:22:04,199 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:22:04,200 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:22:04,200 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1195647775] [2024-11-08 18:22:04,200 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1195647775] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:22:04,200 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:22:04,200 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-08 18:22:04,200 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1341698228] [2024-11-08 18:22:04,201 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:22:04,201 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 18:22:04,202 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:22:04,202 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 18:22:04,202 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 18:22:04,203 INFO L87 Difference]: Start difference. First operand 6211 states and 10214 transitions. Second operand has 4 states, 4 states have (on average 30.0) internal successors, (120), 4 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) [2024-11-08 18:22:04,404 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:22:04,405 INFO L93 Difference]: Finished difference Result 18273 states and 30109 transitions. [2024-11-08 18:22:04,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 18:22:04,405 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 30.0) internal successors, (120), 4 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 [2024-11-08 18:22:04,406 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:22:04,452 INFO L225 Difference]: With dead ends: 18273 [2024-11-08 18:22:04,452 INFO L226 Difference]: Without dead ends: 12243 [2024-11-08 18:22:04,461 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-08 18:22:04,461 INFO L432 NwaCegarLoop]: 552 mSDtfsCounter, 752 mSDsluCounter, 1309 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 752 SdHoareTripleChecker+Valid, 1861 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 18:22:04,462 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [752 Valid, 1861 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 18:22:04,477 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12243 states. [2024-11-08 18:22:04,720 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12243 to 9203. [2024-11-08 18:22:04,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9203 states, 9202 states have (on average 1.6426863725277114) internal successors, (15116), 9202 states have internal predecessors, (15116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:22:04,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9203 states to 9203 states and 15116 transitions. [2024-11-08 18:22:04,772 INFO L78 Accepts]: Start accepts. Automaton has 9203 states and 15116 transitions. Word has length 120 [2024-11-08 18:22:04,772 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:22:04,772 INFO L471 AbstractCegarLoop]: Abstraction has 9203 states and 15116 transitions. [2024-11-08 18:22:04,773 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 30.0) internal successors, (120), 4 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) [2024-11-08 18:22:04,773 INFO L276 IsEmpty]: Start isEmpty. Operand 9203 states and 15116 transitions. [2024-11-08 18:22:04,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2024-11-08 18:22:04,777 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:22:04,777 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:22:04,777 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-08 18:22:04,777 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:22:04,778 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:22:04,778 INFO L85 PathProgramCache]: Analyzing trace with hash 130742413, now seen corresponding path program 1 times [2024-11-08 18:22:04,778 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:22:04,778 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1486668032] [2024-11-08 18:22:04,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:22:04,779 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:22:04,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:22:04,996 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:22:04,996 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:22:04,996 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1486668032] [2024-11-08 18:22:04,996 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1486668032] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:22:04,996 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:22:04,997 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-08 18:22:04,997 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1463888554] [2024-11-08 18:22:04,997 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:22:04,997 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 18:22:04,997 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:22:04,998 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 18:22:04,998 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 18:22:04,998 INFO L87 Difference]: Start difference. First operand 9203 states and 15116 transitions. Second operand has 4 states, 4 states have (on average 30.25) internal successors, (121), 4 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:22:05,312 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:22:05,312 INFO L93 Difference]: Finished difference Result 27097 states and 44597 transitions. [2024-11-08 18:22:05,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 18:22:05,313 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 30.25) internal successors, (121), 4 states have internal predecessors, (121), 0 states have call successors, (0), 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 121 [2024-11-08 18:22:05,314 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:22:05,356 INFO L225 Difference]: With dead ends: 27097 [2024-11-08 18:22:05,356 INFO L226 Difference]: Without dead ends: 18075 [2024-11-08 18:22:05,368 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-08 18:22:05,370 INFO L432 NwaCegarLoop]: 553 mSDtfsCounter, 750 mSDsluCounter, 1311 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 750 SdHoareTripleChecker+Valid, 1864 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 18:22:05,371 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [750 Valid, 1864 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 18:22:05,391 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18075 states. [2024-11-08 18:22:05,768 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18075 to 13605. [2024-11-08 18:22:05,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13605 states, 13604 states have (on average 1.6406939135548368) internal successors, (22320), 13604 states have internal predecessors, (22320), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:22:05,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13605 states to 13605 states and 22320 transitions. [2024-11-08 18:22:05,840 INFO L78 Accepts]: Start accepts. Automaton has 13605 states and 22320 transitions. Word has length 121 [2024-11-08 18:22:05,840 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:22:05,840 INFO L471 AbstractCegarLoop]: Abstraction has 13605 states and 22320 transitions. [2024-11-08 18:22:05,841 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 30.25) internal successors, (121), 4 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:22:05,841 INFO L276 IsEmpty]: Start isEmpty. Operand 13605 states and 22320 transitions. [2024-11-08 18:22:05,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2024-11-08 18:22:05,846 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:22:05,846 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:22:05,846 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-08 18:22:05,847 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:22:05,847 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:22:05,847 INFO L85 PathProgramCache]: Analyzing trace with hash 1601966021, now seen corresponding path program 1 times [2024-11-08 18:22:05,847 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:22:05,848 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [701304634] [2024-11-08 18:22:05,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:22:05,848 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:22:05,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:22:06,029 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:22:06,030 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:22:06,030 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [701304634] [2024-11-08 18:22:06,030 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [701304634] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:22:06,030 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:22:06,030 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 18:22:06,031 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1928173550] [2024-11-08 18:22:06,031 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:22:06,031 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 18:22:06,031 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:22:06,032 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 18:22:06,032 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 18:22:06,032 INFO L87 Difference]: Start difference. First operand 13605 states and 22320 transitions. Second operand has 3 states, 3 states have (on average 40.666666666666664) internal successors, (122), 3 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:22:06,362 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:22:06,364 INFO L93 Difference]: Finished difference Result 30193 states and 49567 transitions. [2024-11-08 18:22:06,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 18:22:06,365 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.666666666666664) internal successors, (122), 3 states have internal predecessors, (122), 0 states have call successors, (0), 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 122 [2024-11-08 18:22:06,366 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:22:06,415 INFO L225 Difference]: With dead ends: 30193 [2024-11-08 18:22:06,415 INFO L226 Difference]: Without dead ends: 20847 [2024-11-08 18:22:06,428 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 18:22:06,431 INFO L432 NwaCegarLoop]: 705 mSDtfsCounter, 228 mSDsluCounter, 514 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 228 SdHoareTripleChecker+Valid, 1219 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 18:22:06,432 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [228 Valid, 1219 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 18:22:06,457 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20847 states. [2024-11-08 18:22:06,898 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20847 to 20845. [2024-11-08 18:22:06,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20845 states, 20844 states have (on average 1.6359144118211475) internal successors, (34099), 20844 states have internal predecessors, (34099), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:22:07,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20845 states to 20845 states and 34099 transitions. [2024-11-08 18:22:07,003 INFO L78 Accepts]: Start accepts. Automaton has 20845 states and 34099 transitions. Word has length 122 [2024-11-08 18:22:07,003 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:22:07,004 INFO L471 AbstractCegarLoop]: Abstraction has 20845 states and 34099 transitions. [2024-11-08 18:22:07,005 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.666666666666664) internal successors, (122), 3 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:22:07,005 INFO L276 IsEmpty]: Start isEmpty. Operand 20845 states and 34099 transitions. [2024-11-08 18:22:07,008 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2024-11-08 18:22:07,008 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:22:07,009 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:22:07,009 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-08 18:22:07,009 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:22:07,013 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:22:07,013 INFO L85 PathProgramCache]: Analyzing trace with hash 654906329, now seen corresponding path program 1 times [2024-11-08 18:22:07,014 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:22:07,014 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1729947088] [2024-11-08 18:22:07,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:22:07,014 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:22:07,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:22:07,302 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:22:07,302 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:22:07,302 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1729947088] [2024-11-08 18:22:07,302 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1729947088] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:22:07,303 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:22:07,303 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 18:22:07,303 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1876418481] [2024-11-08 18:22:07,303 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:22:07,303 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 18:22:07,304 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:22:07,304 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 18:22:07,304 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 18:22:07,305 INFO L87 Difference]: Start difference. First operand 20845 states and 34099 transitions. Second operand has 3 states, 3 states have (on average 40.666666666666664) internal successors, (122), 3 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:22:07,694 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:22:07,694 INFO L93 Difference]: Finished difference Result 46063 states and 75413 transitions. [2024-11-08 18:22:07,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 18:22:07,695 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.666666666666664) internal successors, (122), 3 states have internal predecessors, (122), 0 states have call successors, (0), 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 122 [2024-11-08 18:22:07,695 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:22:07,765 INFO L225 Difference]: With dead ends: 46063 [2024-11-08 18:22:07,765 INFO L226 Difference]: Without dead ends: 31699 [2024-11-08 18:22:07,780 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 18:22:07,781 INFO L432 NwaCegarLoop]: 671 mSDtfsCounter, 221 mSDsluCounter, 515 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 221 SdHoareTripleChecker+Valid, 1186 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 18:22:07,782 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [221 Valid, 1186 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 18:22:07,811 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31699 states. [2024-11-08 18:22:08,336 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31699 to 31697. [2024-11-08 18:22:08,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31697 states, 31696 states have (on average 1.6305212014134276) internal successors, (51681), 31696 states have internal predecessors, (51681), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:22:08,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31697 states to 31697 states and 51681 transitions. [2024-11-08 18:22:08,488 INFO L78 Accepts]: Start accepts. Automaton has 31697 states and 51681 transitions. Word has length 122 [2024-11-08 18:22:08,488 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:22:08,488 INFO L471 AbstractCegarLoop]: Abstraction has 31697 states and 51681 transitions. [2024-11-08 18:22:08,489 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.666666666666664) internal successors, (122), 3 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:22:08,489 INFO L276 IsEmpty]: Start isEmpty. Operand 31697 states and 51681 transitions. [2024-11-08 18:22:08,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2024-11-08 18:22:08,491 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:22:08,492 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:22:08,492 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-08 18:22:08,492 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:22:08,493 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:22:08,493 INFO L85 PathProgramCache]: Analyzing trace with hash 1423805753, now seen corresponding path program 1 times [2024-11-08 18:22:08,493 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:22:08,494 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [306594389] [2024-11-08 18:22:08,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:22:08,494 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:22:08,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:22:08,842 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:22:08,842 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:22:08,843 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [306594389] [2024-11-08 18:22:08,843 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [306594389] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:22:08,843 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:22:08,843 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 18:22:08,843 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1114260535] [2024-11-08 18:22:08,844 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:22:08,844 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 18:22:08,844 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:22:08,845 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 18:22:08,845 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 18:22:08,846 INFO L87 Difference]: Start difference. First operand 31697 states and 51681 transitions. Second operand has 3 states, 3 states have (on average 40.666666666666664) internal successors, (122), 3 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:22:09,156 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:22:09,156 INFO L93 Difference]: Finished difference Result 61873 states and 101007 transitions. [2024-11-08 18:22:09,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 18:22:09,157 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.666666666666664) internal successors, (122), 3 states have internal predecessors, (122), 0 states have call successors, (0), 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 122 [2024-11-08 18:22:09,158 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:22:09,252 INFO L225 Difference]: With dead ends: 61873 [2024-11-08 18:22:09,253 INFO L226 Difference]: Without dead ends: 44427 [2024-11-08 18:22:09,282 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 18:22:09,283 INFO L432 NwaCegarLoop]: 638 mSDtfsCounter, 214 mSDsluCounter, 516 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 214 SdHoareTripleChecker+Valid, 1154 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 18:22:09,283 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [214 Valid, 1154 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 18:22:09,319 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44427 states. [2024-11-08 18:22:10,002 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44427 to 44425. [2024-11-08 18:22:10,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44425 states, 44424 states have (on average 1.6254051863857375) internal successors, (72207), 44424 states have internal predecessors, (72207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:22:10,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44425 states to 44425 states and 72207 transitions. [2024-11-08 18:22:10,156 INFO L78 Accepts]: Start accepts. Automaton has 44425 states and 72207 transitions. Word has length 122 [2024-11-08 18:22:10,157 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:22:10,157 INFO L471 AbstractCegarLoop]: Abstraction has 44425 states and 72207 transitions. [2024-11-08 18:22:10,157 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.666666666666664) internal successors, (122), 3 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:22:10,157 INFO L276 IsEmpty]: Start isEmpty. Operand 44425 states and 72207 transitions. [2024-11-08 18:22:10,159 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2024-11-08 18:22:10,159 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:22:10,159 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:22:10,159 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-08 18:22:10,159 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:22:10,160 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:22:10,160 INFO L85 PathProgramCache]: Analyzing trace with hash -295340454, now seen corresponding path program 1 times [2024-11-08 18:22:10,160 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:22:10,160 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1757468969] [2024-11-08 18:22:10,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:22:10,161 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:22:10,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:22:10,597 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:22:10,598 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:22:10,598 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1757468969] [2024-11-08 18:22:10,598 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1757468969] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:22:10,598 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:22:10,599 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-08 18:22:10,599 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [242092657] [2024-11-08 18:22:10,599 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:22:10,600 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 18:22:10,602 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:22:10,603 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 18:22:10,603 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 18:22:10,603 INFO L87 Difference]: Start difference. First operand 44425 states and 72207 transitions. Second operand has 4 states, 4 states have (on average 30.5) internal successors, (122), 4 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:22:11,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:22:11,258 INFO L93 Difference]: Finished difference Result 141581 states and 230498 transitions. [2024-11-08 18:22:11,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 18:22:11,259 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 30.5) internal successors, (122), 4 states have internal predecessors, (122), 0 states have call successors, (0), 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 122 [2024-11-08 18:22:11,259 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:22:11,653 INFO L225 Difference]: With dead ends: 141581 [2024-11-08 18:22:11,653 INFO L226 Difference]: Without dead ends: 97557 [2024-11-08 18:22:11,713 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-08 18:22:11,718 INFO L432 NwaCegarLoop]: 549 mSDtfsCounter, 748 mSDsluCounter, 1313 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 748 SdHoareTripleChecker+Valid, 1862 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 18:22:11,720 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [748 Valid, 1862 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 18:22:11,781 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97557 states. [2024-11-08 18:22:12,966 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97557 to 70857. [2024-11-08 18:22:13,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70857 states, 70856 states have (on average 1.6216975273794738) internal successors, (114907), 70856 states have internal predecessors, (114907), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:22:13,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70857 states to 70857 states and 114907 transitions. [2024-11-08 18:22:13,444 INFO L78 Accepts]: Start accepts. Automaton has 70857 states and 114907 transitions. Word has length 122 [2024-11-08 18:22:13,444 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:22:13,445 INFO L471 AbstractCegarLoop]: Abstraction has 70857 states and 114907 transitions. [2024-11-08 18:22:13,445 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 30.5) internal successors, (122), 4 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:22:13,445 INFO L276 IsEmpty]: Start isEmpty. Operand 70857 states and 114907 transitions. [2024-11-08 18:22:13,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2024-11-08 18:22:13,450 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:22:13,450 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:22:13,450 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-08 18:22:13,451 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:22:13,451 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:22:13,451 INFO L85 PathProgramCache]: Analyzing trace with hash -845896115, now seen corresponding path program 1 times [2024-11-08 18:22:13,452 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:22:13,452 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [773412253] [2024-11-08 18:22:13,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:22:13,452 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:22:13,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:22:13,657 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:22:13,657 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:22:13,657 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [773412253] [2024-11-08 18:22:13,657 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [773412253] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:22:13,657 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:22:13,658 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 18:22:13,658 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1231604037] [2024-11-08 18:22:13,658 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:22:13,658 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 18:22:13,659 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:22:13,659 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 18:22:13,660 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 18:22:13,660 INFO L87 Difference]: Start difference. First operand 70857 states and 114907 transitions. Second operand has 3 states, 3 states have (on average 40.666666666666664) internal successors, (122), 3 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:22:14,135 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:22:14,135 INFO L93 Difference]: Finished difference Result 156070 states and 254317 transitions. [2024-11-08 18:22:14,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 18:22:14,136 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.666666666666664) internal successors, (122), 3 states have internal predecessors, (122), 0 states have call successors, (0), 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 122 [2024-11-08 18:22:14,136 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:22:14,329 INFO L225 Difference]: With dead ends: 156070 [2024-11-08 18:22:14,329 INFO L226 Difference]: Without dead ends: 105855 [2024-11-08 18:22:14,377 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 18:22:14,379 INFO L432 NwaCegarLoop]: 752 mSDtfsCounter, 235 mSDsluCounter, 513 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 235 SdHoareTripleChecker+Valid, 1265 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 18:22:14,379 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [235 Valid, 1265 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 18:22:14,840 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105855 states. [2024-11-08 18:22:15,945 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105855 to 105853. [2024-11-08 18:22:16,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 105853 states, 105852 states have (on average 1.6188357329101009) internal successors, (171357), 105852 states have internal predecessors, (171357), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:22:16,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105853 states to 105853 states and 171357 transitions. [2024-11-08 18:22:16,764 INFO L78 Accepts]: Start accepts. Automaton has 105853 states and 171357 transitions. Word has length 122 [2024-11-08 18:22:16,764 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:22:16,765 INFO L471 AbstractCegarLoop]: Abstraction has 105853 states and 171357 transitions. [2024-11-08 18:22:16,765 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.666666666666664) internal successors, (122), 3 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:22:16,765 INFO L276 IsEmpty]: Start isEmpty. Operand 105853 states and 171357 transitions. [2024-11-08 18:22:16,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2024-11-08 18:22:16,767 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:22:16,767 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:22:16,767 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-08 18:22:16,767 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:22:16,768 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:22:16,768 INFO L85 PathProgramCache]: Analyzing trace with hash -1871640245, now seen corresponding path program 1 times [2024-11-08 18:22:16,768 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:22:16,768 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1442307584] [2024-11-08 18:22:16,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:22:16,769 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:22:16,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:22:17,393 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:22:17,394 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:22:17,394 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1442307584] [2024-11-08 18:22:17,394 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1442307584] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:22:17,395 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:22:17,395 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-08 18:22:17,396 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1957885016] [2024-11-08 18:22:17,396 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:22:17,396 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 18:22:17,397 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:22:17,397 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 18:22:17,398 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-08 18:22:17,398 INFO L87 Difference]: Start difference. First operand 105853 states and 171357 transitions. Second operand has 6 states, 6 states have (on average 20.666666666666668) internal successors, (124), 6 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:22:18,905 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:22:18,906 INFO L93 Difference]: Finished difference Result 211459 states and 342310 transitions. [2024-11-08 18:22:18,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 18:22:18,910 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 20.666666666666668) internal successors, (124), 6 states have internal predecessors, (124), 0 states have call successors, (0), 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 124 [2024-11-08 18:22:18,911 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:22:19,183 INFO L225 Difference]: With dead ends: 211459 [2024-11-08 18:22:19,183 INFO L226 Difference]: Without dead ends: 105855 [2024-11-08 18:22:19,243 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2024-11-08 18:22:19,244 INFO L432 NwaCegarLoop]: 557 mSDtfsCounter, 437 mSDsluCounter, 1569 mSDsCounter, 0 mSdLazyCounter, 74 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 437 SdHoareTripleChecker+Valid, 2126 SdHoareTripleChecker+Invalid, 78 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 74 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 18:22:19,244 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [437 Valid, 2126 Invalid, 78 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 74 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 18:22:19,326 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105855 states. [2024-11-08 18:22:20,295 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105855 to 105853. [2024-11-08 18:22:20,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 105853 states, 105852 states have (on average 1.6129312625174772) internal successors, (170732), 105852 states have internal predecessors, (170732), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:22:20,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105853 states to 105853 states and 170732 transitions. [2024-11-08 18:22:20,506 INFO L78 Accepts]: Start accepts. Automaton has 105853 states and 170732 transitions. Word has length 124 [2024-11-08 18:22:20,506 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:22:20,506 INFO L471 AbstractCegarLoop]: Abstraction has 105853 states and 170732 transitions. [2024-11-08 18:22:20,506 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 20.666666666666668) internal successors, (124), 6 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:22:20,507 INFO L276 IsEmpty]: Start isEmpty. Operand 105853 states and 170732 transitions. [2024-11-08 18:22:20,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2024-11-08 18:22:20,508 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:22:20,508 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:22:20,508 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-08 18:22:20,508 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:22:20,509 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:22:20,509 INFO L85 PathProgramCache]: Analyzing trace with hash 1477496671, now seen corresponding path program 1 times [2024-11-08 18:22:20,510 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:22:20,510 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1983475295] [2024-11-08 18:22:20,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:22:20,510 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:22:20,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:22:20,948 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:22:20,948 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:22:20,948 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1983475295] [2024-11-08 18:22:20,948 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1983475295] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:22:20,948 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:22:20,949 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-08 18:22:20,949 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [664537049] [2024-11-08 18:22:20,949 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:22:20,949 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 18:22:20,949 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:22:20,950 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 18:22:20,950 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-08 18:22:20,950 INFO L87 Difference]: Start difference. First operand 105853 states and 170732 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) [2024-11-08 18:22:22,343 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:22:22,343 INFO L93 Difference]: Finished difference Result 309457 states and 499570 transitions. [2024-11-08 18:22:22,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 18:22:22,343 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 [2024-11-08 18:22:22,344 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:22:22,655 INFO L225 Difference]: With dead ends: 309457 [2024-11-08 18:22:22,655 INFO L226 Difference]: Without dead ends: 203853 [2024-11-08 18:22:22,751 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2024-11-08 18:22:22,753 INFO L432 NwaCegarLoop]: 548 mSDtfsCounter, 433 mSDsluCounter, 1587 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 433 SdHoareTripleChecker+Valid, 2135 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 18:22:22,753 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [433 Valid, 2135 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 18:22:22,882 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 203853 states. [2024-11-08 18:22:26,117 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 203853 to 203851. [2024-11-08 18:22:26,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 203851 states, 203850 states have (on average 1.605224429727741) internal successors, (327225), 203850 states have internal predecessors, (327225), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:22:26,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 203851 states to 203851 states and 327225 transitions. [2024-11-08 18:22:26,730 INFO L78 Accepts]: Start accepts. Automaton has 203851 states and 327225 transitions. Word has length 127 [2024-11-08 18:22:26,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:22:26,730 INFO L471 AbstractCegarLoop]: Abstraction has 203851 states and 327225 transitions. [2024-11-08 18:22:26,730 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) [2024-11-08 18:22:26,730 INFO L276 IsEmpty]: Start isEmpty. Operand 203851 states and 327225 transitions. [2024-11-08 18:22:26,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2024-11-08 18:22:26,731 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:22:26,731 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:22:26,732 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-08 18:22:26,732 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:22:26,732 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:22:26,732 INFO L85 PathProgramCache]: Analyzing trace with hash -1444152568, now seen corresponding path program 1 times [2024-11-08 18:22:26,732 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:22:26,733 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2090073823] [2024-11-08 18:22:26,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:22:26,733 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:22:26,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:22:27,527 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:22:27,527 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:22:27,528 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2090073823] [2024-11-08 18:22:27,528 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2090073823] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:22:27,531 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:22:27,531 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 18:22:27,531 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1989488975] [2024-11-08 18:22:27,531 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:22:27,532 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 18:22:27,532 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:22:27,532 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 18:22:27,533 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-08 18:22:27,533 INFO L87 Difference]: Start difference. First operand 203851 states and 327225 transitions. Second operand has 5 states, 5 states have (on average 25.6) internal successors, (128), 5 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) [2024-11-08 18:22:28,767 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:22:28,768 INFO L93 Difference]: Finished difference Result 207725 states and 333034 transitions. [2024-11-08 18:22:28,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 18:22:28,768 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 25.6) internal successors, (128), 5 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 [2024-11-08 18:22:28,768 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:22:29,048 INFO L225 Difference]: With dead ends: 207725 [2024-11-08 18:22:29,049 INFO L226 Difference]: Without dead ends: 207723 [2024-11-08 18:22:29,090 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-08 18:22:29,091 INFO L432 NwaCegarLoop]: 557 mSDtfsCounter, 0 mSDsluCounter, 1654 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 2211 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 18:22:29,091 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 2211 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 18:22:29,208 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 207723 states. [2024-11-08 18:22:31,899 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 207723 to 207723. [2024-11-08 18:22:32,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 207723 states, 207722 states have (on average 1.5938128845283601) internal successors, (331070), 207722 states have internal predecessors, (331070), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:22:32,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 207723 states to 207723 states and 331070 transitions. [2024-11-08 18:22:32,331 INFO L78 Accepts]: Start accepts. Automaton has 207723 states and 331070 transitions. Word has length 128 [2024-11-08 18:22:32,331 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:22:32,332 INFO L471 AbstractCegarLoop]: Abstraction has 207723 states and 331070 transitions. [2024-11-08 18:22:32,332 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 25.6) internal successors, (128), 5 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) [2024-11-08 18:22:32,332 INFO L276 IsEmpty]: Start isEmpty. Operand 207723 states and 331070 transitions. [2024-11-08 18:22:32,337 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2024-11-08 18:22:32,337 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:22:32,337 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:22:32,337 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-08 18:22:32,338 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:22:32,338 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:22:32,338 INFO L85 PathProgramCache]: Analyzing trace with hash -1898521827, now seen corresponding path program 1 times [2024-11-08 18:22:32,338 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:22:32,338 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [600524070] [2024-11-08 18:22:32,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:22:32,339 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:22:32,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:22:32,669 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-11-08 18:22:32,669 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:22:32,669 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [600524070] [2024-11-08 18:22:32,669 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [600524070] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:22:32,669 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:22:32,670 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-08 18:22:32,670 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [533439813] [2024-11-08 18:22:32,670 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:22:32,671 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 18:22:32,671 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:22:32,672 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 18:22:32,672 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-08 18:22:32,672 INFO L87 Difference]: Start difference. First operand 207723 states and 331070 transitions. Second operand has 6 states, 6 states have (on average 26.0) internal successors, (156), 6 states have internal predecessors, (156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:22:35,842 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:22:35,843 INFO L93 Difference]: Finished difference Result 565645 states and 903731 transitions. [2024-11-08 18:22:35,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 18:22:35,843 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 26.0) internal successors, (156), 6 states have internal predecessors, (156), 0 states have call successors, (0), 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 164 [2024-11-08 18:22:35,844 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:22:36,604 INFO L225 Difference]: With dead ends: 565645 [2024-11-08 18:22:36,605 INFO L226 Difference]: Without dead ends: 474393 [2024-11-08 18:22:36,689 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2024-11-08 18:22:36,696 INFO L432 NwaCegarLoop]: 812 mSDtfsCounter, 1506 mSDsluCounter, 2309 mSDsCounter, 0 mSdLazyCounter, 102 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1506 SdHoareTripleChecker+Valid, 3121 SdHoareTripleChecker+Invalid, 105 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 102 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 18:22:36,700 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1506 Valid, 3121 Invalid, 105 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 102 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 18:22:36,939 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 474393 states. [2024-11-08 18:22:42,551 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 474393 to 333603. [2024-11-08 18:22:42,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 333603 states, 333602 states have (on average 1.5922686314830248) internal successors, (531184), 333602 states have internal predecessors, (531184), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:22:43,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 333603 states to 333603 states and 531184 transitions. [2024-11-08 18:22:43,565 INFO L78 Accepts]: Start accepts. Automaton has 333603 states and 531184 transitions. Word has length 164 [2024-11-08 18:22:43,566 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:22:43,566 INFO L471 AbstractCegarLoop]: Abstraction has 333603 states and 531184 transitions. [2024-11-08 18:22:43,566 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 26.0) internal successors, (156), 6 states have internal predecessors, (156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:22:43,566 INFO L276 IsEmpty]: Start isEmpty. Operand 333603 states and 531184 transitions. [2024-11-08 18:22:43,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2024-11-08 18:22:43,570 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:22:43,570 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:22:43,571 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-08 18:22:43,571 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:22:43,571 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:22:43,572 INFO L85 PathProgramCache]: Analyzing trace with hash 1449385777, now seen corresponding path program 1 times [2024-11-08 18:22:43,572 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:22:43,572 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [490901796] [2024-11-08 18:22:43,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:22:43,572 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:22:43,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:22:43,907 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-08 18:22:43,908 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:22:43,908 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [490901796] [2024-11-08 18:22:43,908 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [490901796] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:22:43,908 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:22:43,908 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-08 18:22:43,909 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1698900263] [2024-11-08 18:22:43,909 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:22:43,909 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 18:22:43,909 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:22:43,910 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 18:22:43,910 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-08 18:22:43,910 INFO L87 Difference]: Start difference. First operand 333603 states and 531184 transitions. Second operand has 6 states, 6 states have (on average 24.833333333333332) internal successors, (149), 6 states have internal predecessors, (149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)