./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.arbitrated_top_n2_w16_d8_e0.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a70003ac-7918-4afc-bf60-f5b65c90ed47/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a70003ac-7918-4afc-bf60-f5b65c90ed47/bin/uautomizer-verify-84ZbGMXZE1/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a70003ac-7918-4afc-bf60-f5b65c90ed47/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a70003ac-7918-4afc-bf60-f5b65c90ed47/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.arbitrated_top_n2_w16_d8_e0.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a70003ac-7918-4afc-bf60-f5b65c90ed47/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a70003ac-7918-4afc-bf60-f5b65c90ed47/bin/uautomizer-verify-84ZbGMXZE1 --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash cb83f5d7087c4b0d43604a15de3bb5b701cd940862e59390412bf16eeaebebc9 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-02 10:20:05,291 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 10:20:05,346 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a70003ac-7918-4afc-bf60-f5b65c90ed47/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-12-02 10:20:05,350 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 10:20:05,351 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 10:20:05,371 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 10:20:05,371 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 10:20:05,371 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 10:20:05,372 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-02 10:20:05,372 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-02 10:20:05,372 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-02 10:20:05,372 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-02 10:20:05,372 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 10:20:05,372 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 10:20:05,372 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 10:20:05,373 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 10:20:05,373 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-02 10:20:05,373 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-02 10:20:05,373 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 10:20:05,373 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-02 10:20:05,373 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-02 10:20:05,373 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-02 10:20:05,373 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-02 10:20:05,373 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 10:20:05,373 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 10:20:05,373 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-02 10:20:05,374 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 10:20:05,374 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 10:20:05,374 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 10:20:05,374 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 10:20:05,374 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 10:20:05,374 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 10:20:05,374 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 10:20:05,374 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 10:20:05,374 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 10:20:05,374 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 10:20:05,374 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-02 10:20:05,374 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-02 10:20:05,375 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-02 10:20:05,375 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-12-02 10:20:05,375 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-02 10:20:05,375 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-02 10:20:05,375 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-02 10:20:05,375 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-02 10:20:05,375 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-02 10:20:05,375 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a70003ac-7918-4afc-bf60-f5b65c90ed47/bin/uautomizer-verify-84ZbGMXZE1 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cb83f5d7087c4b0d43604a15de3bb5b701cd940862e59390412bf16eeaebebc9 [2024-12-02 10:20:05,607 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 10:20:05,615 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 10:20:05,617 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 10:20:05,618 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 10:20:05,618 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 10:20:05,619 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a70003ac-7918-4afc-bf60-f5b65c90ed47/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.arbitrated_top_n2_w16_d8_e0.c [2024-12-02 10:20:08,219 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a70003ac-7918-4afc-bf60-f5b65c90ed47/bin/uautomizer-verify-84ZbGMXZE1/data/b8073d461/df77c78b91474685b536be782e4e1c06/FLAGd73705fc7 [2024-12-02 10:20:08,499 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 10:20:08,500 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a70003ac-7918-4afc-bf60-f5b65c90ed47/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.arbitrated_top_n2_w16_d8_e0.c [2024-12-02 10:20:08,512 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a70003ac-7918-4afc-bf60-f5b65c90ed47/bin/uautomizer-verify-84ZbGMXZE1/data/b8073d461/df77c78b91474685b536be782e4e1c06/FLAGd73705fc7 [2024-12-02 10:20:08,809 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a70003ac-7918-4afc-bf60-f5b65c90ed47/bin/uautomizer-verify-84ZbGMXZE1/data/b8073d461/df77c78b91474685b536be782e4e1c06 [2024-12-02 10:20:08,812 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 10:20:08,813 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 10:20:08,814 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 10:20:08,814 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 10:20:08,817 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 10:20:08,817 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 10:20:08" (1/1) ... [2024-12-02 10:20:08,818 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@49e56df1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:20:08, skipping insertion in model container [2024-12-02 10:20:08,818 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 10:20:08" (1/1) ... [2024-12-02 10:20:08,857 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 10:20:09,006 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_a70003ac-7918-4afc-bf60-f5b65c90ed47/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.arbitrated_top_n2_w16_d8_e0.c[1270,1283] [2024-12-02 10:20:09,224 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 10:20:09,234 INFO L200 MainTranslator]: Completed pre-run [2024-12-02 10:20:09,243 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_a70003ac-7918-4afc-bf60-f5b65c90ed47/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.arbitrated_top_n2_w16_d8_e0.c[1270,1283] [2024-12-02 10:20:09,360 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 10:20:09,372 INFO L204 MainTranslator]: Completed translation [2024-12-02 10:20:09,372 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:20:09 WrapperNode [2024-12-02 10:20:09,373 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-02 10:20:09,373 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-02 10:20:09,373 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-02 10:20:09,373 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-02 10:20:09,378 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:20:09" (1/1) ... [2024-12-02 10:20:09,402 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:20:09" (1/1) ... [2024-12-02 10:20:09,706 INFO L138 Inliner]: procedures = 17, calls = 15, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 2958 [2024-12-02 10:20:09,707 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-02 10:20:09,707 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-02 10:20:09,708 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-02 10:20:09,708 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-02 10:20:09,717 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:20:09" (1/1) ... [2024-12-02 10:20:09,717 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:20:09" (1/1) ... [2024-12-02 10:20:09,760 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:20:09" (1/1) ... [2024-12-02 10:20:09,861 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-12-02 10:20:09,861 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:20:09" (1/1) ... [2024-12-02 10:20:09,862 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:20:09" (1/1) ... [2024-12-02 10:20:09,931 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:20:09" (1/1) ... [2024-12-02 10:20:09,937 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:20:09" (1/1) ... [2024-12-02 10:20:09,950 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:20:09" (1/1) ... [2024-12-02 10:20:09,976 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:20:09" (1/1) ... [2024-12-02 10:20:09,987 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:20:09" (1/1) ... [2024-12-02 10:20:10,055 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-02 10:20:10,055 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-02 10:20:10,055 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-02 10:20:10,056 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-02 10:20:10,056 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:20:09" (1/1) ... [2024-12-02 10:20:10,062 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 10:20:10,073 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a70003ac-7918-4afc-bf60-f5b65c90ed47/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 10:20:10,086 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a70003ac-7918-4afc-bf60-f5b65c90ed47/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-12-02 10:20:10,089 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a70003ac-7918-4afc-bf60-f5b65c90ed47/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-12-02 10:20:10,114 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-02 10:20:10,114 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-12-02 10:20:10,114 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-12-02 10:20:10,114 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-12-02 10:20:10,114 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-02 10:20:10,114 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-02 10:20:10,368 INFO L234 CfgBuilder]: Building ICFG [2024-12-02 10:20:10,369 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-02 10:20:13,622 INFO L? ?]: Removed 1620 outVars from TransFormulas that were not future-live. [2024-12-02 10:20:13,622 INFO L283 CfgBuilder]: Performing block encoding [2024-12-02 10:20:13,646 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-02 10:20:13,646 INFO L312 CfgBuilder]: Removed 1 assume(true) statements. [2024-12-02 10:20:13,646 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 10:20:13 BoogieIcfgContainer [2024-12-02 10:20:13,646 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-02 10:20:13,648 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-02 10:20:13,648 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-02 10:20:13,653 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-02 10:20:13,653 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 10:20:08" (1/3) ... [2024-12-02 10:20:13,653 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@36400559 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 10:20:13, skipping insertion in model container [2024-12-02 10:20:13,653 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:20:09" (2/3) ... [2024-12-02 10:20:13,654 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@36400559 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 10:20:13, skipping insertion in model container [2024-12-02 10:20:13,654 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 10:20:13" (3/3) ... [2024-12-02 10:20:13,655 INFO L128 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.arbitrated_top_n2_w16_d8_e0.c [2024-12-02 10:20:13,665 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-02 10:20:13,666 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG btor2c-lazyMod.arbitrated_top_n2_w16_d8_e0.c that has 2 procedures, 904 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-12-02 10:20:13,732 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-02 10:20:13,743 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;@30a7c1e0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-02 10:20:13,743 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-12-02 10:20:13,749 INFO L276 IsEmpty]: Start isEmpty. Operand has 904 states, 894 states have (on average 1.494407158836689) internal successors, (1336), 895 states have internal predecessors, (1336), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-12-02 10:20:13,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 328 [2024-12-02 10:20:13,766 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:20:13,767 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:20:13,768 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:20:13,772 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:20:13,773 INFO L85 PathProgramCache]: Analyzing trace with hash -1052345077, now seen corresponding path program 1 times [2024-12-02 10:20:13,781 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:20:13,781 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1516151561] [2024-12-02 10:20:13,781 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:20:13,782 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:20:14,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:20:14,348 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2024-12-02 10:20:14,348 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:20:14,349 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1516151561] [2024-12-02 10:20:14,349 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1516151561] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 10:20:14,349 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1769504761] [2024-12-02 10:20:14,350 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:20:14,350 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 10:20:14,350 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a70003ac-7918-4afc-bf60-f5b65c90ed47/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 10:20:14,356 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a70003ac-7918-4afc-bf60-f5b65c90ed47/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 10:20:14,357 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a70003ac-7918-4afc-bf60-f5b65c90ed47/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-12-02 10:20:15,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:20:15,016 INFO L256 TraceCheckSpWp]: Trace formula consists of 1586 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-12-02 10:20:15,031 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:20:15,069 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2024-12-02 10:20:15,069 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 10:20:15,069 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1769504761] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:20:15,069 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 10:20:15,070 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-12-02 10:20:15,072 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1407519674] [2024-12-02 10:20:15,073 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:20:15,078 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-12-02 10:20:15,078 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:20:15,095 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-12-02 10:20:15,096 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-12-02 10:20:15,099 INFO L87 Difference]: Start difference. First operand has 904 states, 894 states have (on average 1.494407158836689) internal successors, (1336), 895 states have internal predecessors, (1336), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) Second operand has 2 states, 2 states have (on average 148.5) internal successors, (297), 2 states have internal predecessors, (297), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 2 states have call successors, (7) [2024-12-02 10:20:15,172 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:20:15,172 INFO L93 Difference]: Finished difference Result 1687 states and 2529 transitions. [2024-12-02 10:20:15,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-02 10:20:15,175 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 148.5) internal successors, (297), 2 states have internal predecessors, (297), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 2 states have call successors, (7) Word has length 327 [2024-12-02 10:20:15,175 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:20:15,187 INFO L225 Difference]: With dead ends: 1687 [2024-12-02 10:20:15,188 INFO L226 Difference]: Without dead ends: 901 [2024-12-02 10:20:15,193 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 328 GetRequests, 328 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-12-02 10:20:15,196 INFO L435 NwaCegarLoop]: 1345 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1345 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 10:20:15,196 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1345 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 10:20:15,210 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 901 states. [2024-12-02 10:20:15,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 901 to 901. [2024-12-02 10:20:15,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 901 states, 892 states have (on average 1.492152466367713) internal successors, (1331), 892 states have internal predecessors, (1331), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-12-02 10:20:15,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 901 states to 901 states and 1345 transitions. [2024-12-02 10:20:15,271 INFO L78 Accepts]: Start accepts. Automaton has 901 states and 1345 transitions. Word has length 327 [2024-12-02 10:20:15,271 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:20:15,271 INFO L471 AbstractCegarLoop]: Abstraction has 901 states and 1345 transitions. [2024-12-02 10:20:15,272 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 148.5) internal successors, (297), 2 states have internal predecessors, (297), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 2 states have call successors, (7) [2024-12-02 10:20:15,272 INFO L276 IsEmpty]: Start isEmpty. Operand 901 states and 1345 transitions. [2024-12-02 10:20:15,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 328 [2024-12-02 10:20:15,279 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:20:15,280 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:20:15,293 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a70003ac-7918-4afc-bf60-f5b65c90ed47/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-12-02 10:20:15,480 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a70003ac-7918-4afc-bf60-f5b65c90ed47/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 10:20:15,480 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:20:15,481 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:20:15,481 INFO L85 PathProgramCache]: Analyzing trace with hash 1732910013, now seen corresponding path program 1 times [2024-12-02 10:20:15,482 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:20:15,482 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1340736221] [2024-12-02 10:20:15,482 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:20:15,482 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:20:15,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:20:17,063 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-12-02 10:20:17,064 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:20:17,064 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1340736221] [2024-12-02 10:20:17,064 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1340736221] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:20:17,064 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:20:17,064 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 10:20:17,064 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [705627640] [2024-12-02 10:20:17,064 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:20:17,065 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 10:20:17,065 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:20:17,066 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 10:20:17,066 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 10:20:17,066 INFO L87 Difference]: Start difference. First operand 901 states and 1345 transitions. Second operand has 4 states, 4 states have (on average 73.75) internal successors, (295), 4 states have internal predecessors, (295), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2024-12-02 10:20:17,112 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:20:17,112 INFO L93 Difference]: Finished difference Result 905 states and 1349 transitions. [2024-12-02 10:20:17,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 10:20:17,113 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 73.75) internal successors, (295), 4 states have internal predecessors, (295), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 327 [2024-12-02 10:20:17,115 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:20:17,118 INFO L225 Difference]: With dead ends: 905 [2024-12-02 10:20:17,118 INFO L226 Difference]: Without dead ends: 903 [2024-12-02 10:20:17,118 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 10:20:17,119 INFO L435 NwaCegarLoop]: 1343 mSDtfsCounter, 0 mSDsluCounter, 2680 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 4023 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 10:20:17,119 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 4023 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 10:20:17,121 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 903 states. [2024-12-02 10:20:17,134 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 903 to 903. [2024-12-02 10:20:17,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 903 states, 894 states have (on average 1.4910514541387025) internal successors, (1333), 894 states have internal predecessors, (1333), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-12-02 10:20:17,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 903 states to 903 states and 1347 transitions. [2024-12-02 10:20:17,138 INFO L78 Accepts]: Start accepts. Automaton has 903 states and 1347 transitions. Word has length 327 [2024-12-02 10:20:17,140 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:20:17,140 INFO L471 AbstractCegarLoop]: Abstraction has 903 states and 1347 transitions. [2024-12-02 10:20:17,140 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 73.75) internal successors, (295), 4 states have internal predecessors, (295), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2024-12-02 10:20:17,140 INFO L276 IsEmpty]: Start isEmpty. Operand 903 states and 1347 transitions. [2024-12-02 10:20:17,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 329 [2024-12-02 10:20:17,143 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:20:17,143 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:20:17,143 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-12-02 10:20:17,144 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:20:17,144 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:20:17,144 INFO L85 PathProgramCache]: Analyzing trace with hash -2112667458, now seen corresponding path program 1 times [2024-12-02 10:20:17,144 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:20:17,144 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1024476983] [2024-12-02 10:20:17,145 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:20:17,145 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:20:17,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:20:17,983 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-12-02 10:20:17,983 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:20:17,983 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1024476983] [2024-12-02 10:20:17,983 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1024476983] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:20:17,983 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:20:17,983 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 10:20:17,984 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [458804547] [2024-12-02 10:20:17,984 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:20:17,984 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 10:20:17,985 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:20:17,985 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 10:20:17,986 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 10:20:17,986 INFO L87 Difference]: Start difference. First operand 903 states and 1347 transitions. Second operand has 5 states, 5 states have (on average 59.2) internal successors, (296), 5 states have internal predecessors, (296), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2024-12-02 10:20:18,725 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:20:18,725 INFO L93 Difference]: Finished difference Result 2351 states and 3511 transitions. [2024-12-02 10:20:18,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 10:20:18,726 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 59.2) internal successors, (296), 5 states have internal predecessors, (296), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 328 [2024-12-02 10:20:18,727 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:20:18,730 INFO L225 Difference]: With dead ends: 2351 [2024-12-02 10:20:18,730 INFO L226 Difference]: Without dead ends: 903 [2024-12-02 10:20:18,732 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-12-02 10:20:18,733 INFO L435 NwaCegarLoop]: 1441 mSDtfsCounter, 2720 mSDsluCounter, 2494 mSDsCounter, 0 mSdLazyCounter, 482 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2720 SdHoareTripleChecker+Valid, 3935 SdHoareTripleChecker+Invalid, 545 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 482 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-12-02 10:20:18,734 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2720 Valid, 3935 Invalid, 545 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 482 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-12-02 10:20:18,736 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 903 states. [2024-12-02 10:20:18,753 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 903 to 903. [2024-12-02 10:20:18,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 903 states, 894 states have (on average 1.4899328859060403) internal successors, (1332), 894 states have internal predecessors, (1332), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-12-02 10:20:18,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 903 states to 903 states and 1346 transitions. [2024-12-02 10:20:18,760 INFO L78 Accepts]: Start accepts. Automaton has 903 states and 1346 transitions. Word has length 328 [2024-12-02 10:20:18,760 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:20:18,761 INFO L471 AbstractCegarLoop]: Abstraction has 903 states and 1346 transitions. [2024-12-02 10:20:18,761 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 59.2) internal successors, (296), 5 states have internal predecessors, (296), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2024-12-02 10:20:18,761 INFO L276 IsEmpty]: Start isEmpty. Operand 903 states and 1346 transitions. [2024-12-02 10:20:18,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 330 [2024-12-02 10:20:18,766 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:20:18,766 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:20:18,766 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-12-02 10:20:18,767 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:20:18,767 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:20:18,767 INFO L85 PathProgramCache]: Analyzing trace with hash -1057595202, now seen corresponding path program 1 times [2024-12-02 10:20:18,767 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:20:18,767 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1490341400] [2024-12-02 10:20:18,768 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:20:18,768 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:20:18,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:20:19,819 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-12-02 10:20:19,819 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:20:19,819 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1490341400] [2024-12-02 10:20:19,820 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1490341400] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:20:19,820 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:20:19,820 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 10:20:19,820 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [540091466] [2024-12-02 10:20:19,820 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:20:19,821 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 10:20:19,821 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:20:19,822 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 10:20:19,822 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-12-02 10:20:19,822 INFO L87 Difference]: Start difference. First operand 903 states and 1346 transitions. Second operand has 5 states, 5 states have (on average 59.4) internal successors, (297), 5 states have internal predecessors, (297), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2024-12-02 10:20:20,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:20:20,480 INFO L93 Difference]: Finished difference Result 1688 states and 2516 transitions. [2024-12-02 10:20:20,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 10:20:20,481 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 59.4) internal successors, (297), 5 states have internal predecessors, (297), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 329 [2024-12-02 10:20:20,482 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:20:20,486 INFO L225 Difference]: With dead ends: 1688 [2024-12-02 10:20:20,486 INFO L226 Difference]: Without dead ends: 903 [2024-12-02 10:20:20,488 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-12-02 10:20:20,489 INFO L435 NwaCegarLoop]: 1031 mSDtfsCounter, 1256 mSDsluCounter, 1044 mSDsCounter, 0 mSdLazyCounter, 630 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1263 SdHoareTripleChecker+Valid, 2075 SdHoareTripleChecker+Invalid, 631 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 630 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-12-02 10:20:20,489 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1263 Valid, 2075 Invalid, 631 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 630 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-12-02 10:20:20,491 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 903 states. [2024-12-02 10:20:20,513 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 903 to 903. [2024-12-02 10:20:20,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 903 states, 894 states have (on average 1.4888143176733781) internal successors, (1331), 894 states have internal predecessors, (1331), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-12-02 10:20:20,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 903 states to 903 states and 1345 transitions. [2024-12-02 10:20:20,519 INFO L78 Accepts]: Start accepts. Automaton has 903 states and 1345 transitions. Word has length 329 [2024-12-02 10:20:20,520 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:20:20,520 INFO L471 AbstractCegarLoop]: Abstraction has 903 states and 1345 transitions. [2024-12-02 10:20:20,520 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 59.4) internal successors, (297), 5 states have internal predecessors, (297), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2024-12-02 10:20:20,520 INFO L276 IsEmpty]: Start isEmpty. Operand 903 states and 1345 transitions. [2024-12-02 10:20:20,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 331 [2024-12-02 10:20:20,526 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:20:20,526 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:20:20,526 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-12-02 10:20:20,526 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:20:20,527 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:20:20,527 INFO L85 PathProgramCache]: Analyzing trace with hash 1205771859, now seen corresponding path program 1 times [2024-12-02 10:20:20,527 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:20:20,527 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [643544530] [2024-12-02 10:20:20,527 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:20:20,527 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:20:20,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:20:21,284 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-12-02 10:20:21,284 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:20:21,284 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [643544530] [2024-12-02 10:20:21,284 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [643544530] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:20:21,284 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:20:21,284 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 10:20:21,284 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [157006885] [2024-12-02 10:20:21,284 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:20:21,285 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 10:20:21,285 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:20:21,286 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 10:20:21,286 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 10:20:21,286 INFO L87 Difference]: Start difference. First operand 903 states and 1345 transitions. Second operand has 4 states, 4 states have (on average 74.5) internal successors, (298), 4 states have internal predecessors, (298), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2024-12-02 10:20:21,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:20:21,338 INFO L93 Difference]: Finished difference Result 1690 states and 2517 transitions. [2024-12-02 10:20:21,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 10:20:21,339 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 74.5) internal successors, (298), 4 states have internal predecessors, (298), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 330 [2024-12-02 10:20:21,340 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:20:21,344 INFO L225 Difference]: With dead ends: 1690 [2024-12-02 10:20:21,344 INFO L226 Difference]: Without dead ends: 905 [2024-12-02 10:20:21,345 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 10:20:21,346 INFO L435 NwaCegarLoop]: 1341 mSDtfsCounter, 0 mSDsluCounter, 2672 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 4013 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 10:20:21,346 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 4013 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 10:20:21,348 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 905 states. [2024-12-02 10:20:21,365 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 905 to 905. [2024-12-02 10:20:21,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 905 states, 896 states have (on average 1.4877232142857142) internal successors, (1333), 896 states have internal predecessors, (1333), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-12-02 10:20:21,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 905 states to 905 states and 1347 transitions. [2024-12-02 10:20:21,372 INFO L78 Accepts]: Start accepts. Automaton has 905 states and 1347 transitions. Word has length 330 [2024-12-02 10:20:21,373 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:20:21,373 INFO L471 AbstractCegarLoop]: Abstraction has 905 states and 1347 transitions. [2024-12-02 10:20:21,373 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 74.5) internal successors, (298), 4 states have internal predecessors, (298), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2024-12-02 10:20:21,373 INFO L276 IsEmpty]: Start isEmpty. Operand 905 states and 1347 transitions. [2024-12-02 10:20:21,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 332 [2024-12-02 10:20:21,380 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:20:21,380 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:20:21,380 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-12-02 10:20:21,380 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:20:21,381 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:20:21,381 INFO L85 PathProgramCache]: Analyzing trace with hash 1921225153, now seen corresponding path program 1 times [2024-12-02 10:20:21,381 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:20:21,381 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2112717716] [2024-12-02 10:20:21,381 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:20:21,381 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:20:21,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:20:22,261 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-12-02 10:20:22,261 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:20:22,261 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2112717716] [2024-12-02 10:20:22,261 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2112717716] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:20:22,261 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:20:22,262 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 10:20:22,262 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [69205948] [2024-12-02 10:20:22,262 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:20:22,262 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 10:20:22,263 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:20:22,263 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 10:20:22,264 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 10:20:22,264 INFO L87 Difference]: Start difference. First operand 905 states and 1347 transitions. Second operand has 4 states, 4 states have (on average 74.75) internal successors, (299), 4 states have internal predecessors, (299), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2024-12-02 10:20:22,408 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:20:22,409 INFO L93 Difference]: Finished difference Result 1692 states and 2518 transitions. [2024-12-02 10:20:22,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 10:20:22,409 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 74.75) internal successors, (299), 4 states have internal predecessors, (299), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 331 [2024-12-02 10:20:22,410 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:20:22,413 INFO L225 Difference]: With dead ends: 1692 [2024-12-02 10:20:22,413 INFO L226 Difference]: Without dead ends: 905 [2024-12-02 10:20:22,414 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-12-02 10:20:22,415 INFO L435 NwaCegarLoop]: 1289 mSDtfsCounter, 1111 mSDsluCounter, 1291 mSDsCounter, 0 mSdLazyCounter, 110 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1111 SdHoareTripleChecker+Valid, 2580 SdHoareTripleChecker+Invalid, 111 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 110 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 10:20:22,415 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1111 Valid, 2580 Invalid, 111 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 110 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 10:20:22,417 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 905 states. [2024-12-02 10:20:22,427 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 905 to 905. [2024-12-02 10:20:22,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 905 states, 896 states have (on average 1.4854910714285714) internal successors, (1331), 896 states have internal predecessors, (1331), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-12-02 10:20:22,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 905 states to 905 states and 1345 transitions. [2024-12-02 10:20:22,432 INFO L78 Accepts]: Start accepts. Automaton has 905 states and 1345 transitions. Word has length 331 [2024-12-02 10:20:22,432 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:20:22,432 INFO L471 AbstractCegarLoop]: Abstraction has 905 states and 1345 transitions. [2024-12-02 10:20:22,433 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 74.75) internal successors, (299), 4 states have internal predecessors, (299), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2024-12-02 10:20:22,433 INFO L276 IsEmpty]: Start isEmpty. Operand 905 states and 1345 transitions. [2024-12-02 10:20:22,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 334 [2024-12-02 10:20:22,436 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:20:22,436 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:20:22,436 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-12-02 10:20:22,436 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:20:22,437 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:20:22,437 INFO L85 PathProgramCache]: Analyzing trace with hash 438607134, now seen corresponding path program 1 times [2024-12-02 10:20:22,437 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:20:22,437 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1416823228] [2024-12-02 10:20:22,437 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:20:22,437 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:20:22,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:20:22,928 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-12-02 10:20:22,928 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:20:22,928 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1416823228] [2024-12-02 10:20:22,928 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1416823228] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:20:22,928 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:20:22,928 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 10:20:22,928 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [276439455] [2024-12-02 10:20:22,928 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:20:22,929 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 10:20:22,929 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:20:22,930 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 10:20:22,930 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 10:20:22,930 INFO L87 Difference]: Start difference. First operand 905 states and 1345 transitions. Second operand has 5 states, 5 states have (on average 60.2) internal successors, (301), 5 states have internal predecessors, (301), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2024-12-02 10:20:23,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:20:23,046 INFO L93 Difference]: Finished difference Result 1826 states and 2713 transitions. [2024-12-02 10:20:23,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 10:20:23,047 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 60.2) internal successors, (301), 5 states have internal predecessors, (301), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 333 [2024-12-02 10:20:23,048 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:20:23,050 INFO L225 Difference]: With dead ends: 1826 [2024-12-02 10:20:23,050 INFO L226 Difference]: Without dead ends: 905 [2024-12-02 10:20:23,051 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-12-02 10:20:23,052 INFO L435 NwaCegarLoop]: 1330 mSDtfsCounter, 1504 mSDsluCounter, 2627 mSDsCounter, 0 mSdLazyCounter, 73 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1504 SdHoareTripleChecker+Valid, 3957 SdHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 73 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 10:20:23,052 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1504 Valid, 3957 Invalid, 75 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 73 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 10:20:23,053 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 905 states. [2024-12-02 10:20:23,063 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 905 to 905. [2024-12-02 10:20:23,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 905 states, 896 states have (on average 1.484375) internal successors, (1330), 896 states have internal predecessors, (1330), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-12-02 10:20:23,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 905 states to 905 states and 1344 transitions. [2024-12-02 10:20:23,067 INFO L78 Accepts]: Start accepts. Automaton has 905 states and 1344 transitions. Word has length 333 [2024-12-02 10:20:23,067 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:20:23,067 INFO L471 AbstractCegarLoop]: Abstraction has 905 states and 1344 transitions. [2024-12-02 10:20:23,067 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 60.2) internal successors, (301), 5 states have internal predecessors, (301), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2024-12-02 10:20:23,067 INFO L276 IsEmpty]: Start isEmpty. Operand 905 states and 1344 transitions. [2024-12-02 10:20:23,069 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 335 [2024-12-02 10:20:23,069 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:20:23,069 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:20:23,069 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-12-02 10:20:23,069 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:20:23,070 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:20:23,070 INFO L85 PathProgramCache]: Analyzing trace with hash -577277243, now seen corresponding path program 1 times [2024-12-02 10:20:23,070 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:20:23,070 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1918841304] [2024-12-02 10:20:23,070 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:20:23,070 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:20:23,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:20:23,465 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-12-02 10:20:23,465 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:20:23,465 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1918841304] [2024-12-02 10:20:23,465 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1918841304] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:20:23,465 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:20:23,465 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 10:20:23,465 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1597420202] [2024-12-02 10:20:23,465 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:20:23,466 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 10:20:23,466 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:20:23,467 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 10:20:23,467 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-12-02 10:20:23,467 INFO L87 Difference]: Start difference. First operand 905 states and 1344 transitions. Second operand has 5 states, 5 states have (on average 60.4) internal successors, (302), 5 states have internal predecessors, (302), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2024-12-02 10:20:23,603 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:20:23,603 INFO L93 Difference]: Finished difference Result 1692 states and 2512 transitions. [2024-12-02 10:20:23,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 10:20:23,604 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 60.4) internal successors, (302), 5 states have internal predecessors, (302), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 334 [2024-12-02 10:20:23,604 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:20:23,606 INFO L225 Difference]: With dead ends: 1692 [2024-12-02 10:20:23,606 INFO L226 Difference]: Without dead ends: 905 [2024-12-02 10:20:23,607 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-12-02 10:20:23,607 INFO L435 NwaCegarLoop]: 1289 mSDtfsCounter, 2495 mSDsluCounter, 1291 mSDsCounter, 0 mSdLazyCounter, 106 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2502 SdHoareTripleChecker+Valid, 2580 SdHoareTripleChecker+Invalid, 107 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 106 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 10:20:23,607 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2502 Valid, 2580 Invalid, 107 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 106 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 10:20:23,609 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 905 states. [2024-12-02 10:20:23,618 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 905 to 905. [2024-12-02 10:20:23,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 905 states, 896 states have (on average 1.4832589285714286) internal successors, (1329), 896 states have internal predecessors, (1329), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-12-02 10:20:23,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 905 states to 905 states and 1343 transitions. [2024-12-02 10:20:23,622 INFO L78 Accepts]: Start accepts. Automaton has 905 states and 1343 transitions. Word has length 334 [2024-12-02 10:20:23,622 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:20:23,622 INFO L471 AbstractCegarLoop]: Abstraction has 905 states and 1343 transitions. [2024-12-02 10:20:23,622 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 60.4) internal successors, (302), 5 states have internal predecessors, (302), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2024-12-02 10:20:23,622 INFO L276 IsEmpty]: Start isEmpty. Operand 905 states and 1343 transitions. [2024-12-02 10:20:23,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 336 [2024-12-02 10:20:23,624 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:20:23,624 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:20:23,624 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-12-02 10:20:23,624 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:20:23,624 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:20:23,625 INFO L85 PathProgramCache]: Analyzing trace with hash -849312411, now seen corresponding path program 1 times [2024-12-02 10:20:23,625 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:20:23,625 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [401241016] [2024-12-02 10:20:23,625 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:20:23,625 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:20:23,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:20:24,246 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-12-02 10:20:24,246 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:20:24,246 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [401241016] [2024-12-02 10:20:24,246 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [401241016] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:20:24,246 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:20:24,246 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 10:20:24,247 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [151958469] [2024-12-02 10:20:24,247 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:20:24,247 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 10:20:24,247 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:20:24,248 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 10:20:24,248 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-12-02 10:20:24,249 INFO L87 Difference]: Start difference. First operand 905 states and 1343 transitions. Second operand has 5 states, 5 states have (on average 60.6) internal successors, (303), 5 states have internal predecessors, (303), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2024-12-02 10:20:24,408 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:20:24,409 INFO L93 Difference]: Finished difference Result 1692 states and 2510 transitions. [2024-12-02 10:20:24,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 10:20:24,409 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 60.6) internal successors, (303), 5 states have internal predecessors, (303), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 335 [2024-12-02 10:20:24,410 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:20:24,413 INFO L225 Difference]: With dead ends: 1692 [2024-12-02 10:20:24,414 INFO L226 Difference]: Without dead ends: 905 [2024-12-02 10:20:24,415 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-12-02 10:20:24,416 INFO L435 NwaCegarLoop]: 1289 mSDtfsCounter, 2345 mSDsluCounter, 1291 mSDsCounter, 0 mSdLazyCounter, 104 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2352 SdHoareTripleChecker+Valid, 2580 SdHoareTripleChecker+Invalid, 105 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 104 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 10:20:24,416 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2352 Valid, 2580 Invalid, 105 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 104 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 10:20:24,418 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 905 states. [2024-12-02 10:20:24,439 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 905 to 905. [2024-12-02 10:20:24,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 905 states, 896 states have (on average 1.4821428571428572) internal successors, (1328), 896 states have internal predecessors, (1328), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-12-02 10:20:24,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 905 states to 905 states and 1342 transitions. [2024-12-02 10:20:24,446 INFO L78 Accepts]: Start accepts. Automaton has 905 states and 1342 transitions. Word has length 335 [2024-12-02 10:20:24,447 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:20:24,447 INFO L471 AbstractCegarLoop]: Abstraction has 905 states and 1342 transitions. [2024-12-02 10:20:24,447 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 60.6) internal successors, (303), 5 states have internal predecessors, (303), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2024-12-02 10:20:24,447 INFO L276 IsEmpty]: Start isEmpty. Operand 905 states and 1342 transitions. [2024-12-02 10:20:24,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 337 [2024-12-02 10:20:24,451 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:20:24,451 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:20:24,451 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-12-02 10:20:24,452 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:20:24,452 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:20:24,452 INFO L85 PathProgramCache]: Analyzing trace with hash 1767153188, now seen corresponding path program 1 times [2024-12-02 10:20:24,452 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:20:24,452 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1177316912] [2024-12-02 10:20:24,453 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:20:24,453 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:20:25,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:20:25,919 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-12-02 10:20:25,919 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:20:25,919 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1177316912] [2024-12-02 10:20:25,920 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1177316912] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:20:25,920 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:20:25,920 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 10:20:25,920 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1697988035] [2024-12-02 10:20:25,920 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:20:25,920 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 10:20:25,920 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:20:25,921 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 10:20:25,921 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 10:20:25,921 INFO L87 Difference]: Start difference. First operand 905 states and 1342 transitions. Second operand has 4 states, 4 states have (on average 76.0) internal successors, (304), 4 states have internal predecessors, (304), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2024-12-02 10:20:26,039 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:20:26,039 INFO L93 Difference]: Finished difference Result 1692 states and 2508 transitions. [2024-12-02 10:20:26,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 10:20:26,040 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 76.0) internal successors, (304), 4 states have internal predecessors, (304), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 336 [2024-12-02 10:20:26,040 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:20:26,042 INFO L225 Difference]: With dead ends: 1692 [2024-12-02 10:20:26,042 INFO L226 Difference]: Without dead ends: 905 [2024-12-02 10:20:26,043 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-12-02 10:20:26,043 INFO L435 NwaCegarLoop]: 1289 mSDtfsCounter, 1177 mSDsluCounter, 1291 mSDsCounter, 0 mSdLazyCounter, 102 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1177 SdHoareTripleChecker+Valid, 2580 SdHoareTripleChecker+Invalid, 102 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 102 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 10:20:26,043 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1177 Valid, 2580 Invalid, 102 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 102 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 10:20:26,045 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 905 states. [2024-12-02 10:20:26,054 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 905 to 905. [2024-12-02 10:20:26,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 905 states, 896 states have (on average 1.4810267857142858) internal successors, (1327), 896 states have internal predecessors, (1327), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-12-02 10:20:26,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 905 states to 905 states and 1341 transitions. [2024-12-02 10:20:26,058 INFO L78 Accepts]: Start accepts. Automaton has 905 states and 1341 transitions. Word has length 336 [2024-12-02 10:20:26,059 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:20:26,059 INFO L471 AbstractCegarLoop]: Abstraction has 905 states and 1341 transitions. [2024-12-02 10:20:26,059 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 76.0) internal successors, (304), 4 states have internal predecessors, (304), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2024-12-02 10:20:26,059 INFO L276 IsEmpty]: Start isEmpty. Operand 905 states and 1341 transitions. [2024-12-02 10:20:26,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 338 [2024-12-02 10:20:26,060 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:20:26,060 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:20:26,061 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-12-02 10:20:26,061 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:20:26,061 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:20:26,061 INFO L85 PathProgramCache]: Analyzing trace with hash 1536005472, now seen corresponding path program 1 times [2024-12-02 10:20:26,061 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:20:26,061 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [41442836] [2024-12-02 10:20:26,061 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:20:26,062 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:20:26,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:20:27,050 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-12-02 10:20:27,050 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:20:27,050 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [41442836] [2024-12-02 10:20:27,050 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [41442836] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:20:27,050 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:20:27,050 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 10:20:27,051 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1352609477] [2024-12-02 10:20:27,051 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:20:27,051 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 10:20:27,051 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:20:27,052 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 10:20:27,052 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-12-02 10:20:27,052 INFO L87 Difference]: Start difference. First operand 905 states and 1341 transitions. Second operand has 6 states, 6 states have (on average 50.833333333333336) internal successors, (305), 6 states have internal predecessors, (305), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-12-02 10:20:27,500 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:20:27,500 INFO L93 Difference]: Finished difference Result 2564 states and 3800 transitions. [2024-12-02 10:20:27,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 10:20:27,501 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 50.833333333333336) internal successors, (305), 6 states have internal predecessors, (305), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 337 [2024-12-02 10:20:27,501 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:20:27,506 INFO L225 Difference]: With dead ends: 2564 [2024-12-02 10:20:27,506 INFO L226 Difference]: Without dead ends: 1677 [2024-12-02 10:20:27,508 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-12-02 10:20:27,509 INFO L435 NwaCegarLoop]: 1364 mSDtfsCounter, 1256 mSDsluCounter, 5095 mSDsCounter, 0 mSdLazyCounter, 366 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1261 SdHoareTripleChecker+Valid, 6459 SdHoareTripleChecker+Invalid, 378 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 366 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-12-02 10:20:27,509 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1261 Valid, 6459 Invalid, 378 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 366 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-12-02 10:20:27,511 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1677 states. [2024-12-02 10:20:27,533 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1677 to 964. [2024-12-02 10:20:27,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 964 states, 953 states have (on average 1.4795383001049318) internal successors, (1410), 953 states have internal predecessors, (1410), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-12-02 10:20:27,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 964 states to 964 states and 1428 transitions. [2024-12-02 10:20:27,538 INFO L78 Accepts]: Start accepts. Automaton has 964 states and 1428 transitions. Word has length 337 [2024-12-02 10:20:27,538 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:20:27,538 INFO L471 AbstractCegarLoop]: Abstraction has 964 states and 1428 transitions. [2024-12-02 10:20:27,538 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 50.833333333333336) internal successors, (305), 6 states have internal predecessors, (305), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-12-02 10:20:27,538 INFO L276 IsEmpty]: Start isEmpty. Operand 964 states and 1428 transitions. [2024-12-02 10:20:27,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 339 [2024-12-02 10:20:27,541 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:20:27,541 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:20:27,541 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-12-02 10:20:27,541 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:20:27,542 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:20:27,542 INFO L85 PathProgramCache]: Analyzing trace with hash 1862282348, now seen corresponding path program 1 times [2024-12-02 10:20:27,542 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:20:27,542 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [598582364] [2024-12-02 10:20:27,542 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:20:27,542 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:20:28,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:20:29,614 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-12-02 10:20:29,615 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:20:29,615 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [598582364] [2024-12-02 10:20:29,615 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [598582364] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:20:29,615 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:20:29,615 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-12-02 10:20:29,615 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [313223897] [2024-12-02 10:20:29,615 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:20:29,616 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-12-02 10:20:29,616 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:20:29,616 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-12-02 10:20:29,616 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2024-12-02 10:20:29,617 INFO L87 Difference]: Start difference. First operand 964 states and 1428 transitions. Second operand has 11 states, 11 states have (on average 27.818181818181817) internal successors, (306), 11 states have internal predecessors, (306), 3 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-12-02 10:20:31,208 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:20:31,208 INFO L93 Difference]: Finished difference Result 2762 states and 4092 transitions. [2024-12-02 10:20:31,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-12-02 10:20:31,209 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 27.818181818181817) internal successors, (306), 11 states have internal predecessors, (306), 3 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 338 [2024-12-02 10:20:31,210 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:20:31,214 INFO L225 Difference]: With dead ends: 2762 [2024-12-02 10:20:31,215 INFO L226 Difference]: Without dead ends: 1975 [2024-12-02 10:20:31,216 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=53, Invalid=187, Unknown=0, NotChecked=0, Total=240 [2024-12-02 10:20:31,216 INFO L435 NwaCegarLoop]: 1132 mSDtfsCounter, 2575 mSDsluCounter, 8870 mSDsCounter, 0 mSdLazyCounter, 2562 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2590 SdHoareTripleChecker+Valid, 10002 SdHoareTripleChecker+Invalid, 2584 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 2562 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-12-02 10:20:31,217 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2590 Valid, 10002 Invalid, 2584 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 2562 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-12-02 10:20:31,219 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1975 states. [2024-12-02 10:20:31,240 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1975 to 1262. [2024-12-02 10:20:31,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1262 states, 1238 states have (on average 1.4765751211631664) internal successors, (1828), 1238 states have internal predecessors, (1828), 22 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2024-12-02 10:20:31,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1262 states to 1262 states and 1872 transitions. [2024-12-02 10:20:31,243 INFO L78 Accepts]: Start accepts. Automaton has 1262 states and 1872 transitions. Word has length 338 [2024-12-02 10:20:31,243 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:20:31,244 INFO L471 AbstractCegarLoop]: Abstraction has 1262 states and 1872 transitions. [2024-12-02 10:20:31,244 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 27.818181818181817) internal successors, (306), 11 states have internal predecessors, (306), 3 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-12-02 10:20:31,244 INFO L276 IsEmpty]: Start isEmpty. Operand 1262 states and 1872 transitions. [2024-12-02 10:20:31,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 339 [2024-12-02 10:20:31,245 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:20:31,246 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:20:31,246 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-12-02 10:20:31,246 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:20:31,246 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:20:31,246 INFO L85 PathProgramCache]: Analyzing trace with hash -26496948, now seen corresponding path program 1 times [2024-12-02 10:20:31,246 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:20:31,247 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [782183328] [2024-12-02 10:20:31,247 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:20:31,247 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:20:31,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:20:32,383 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-12-02 10:20:32,383 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:20:32,383 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [782183328] [2024-12-02 10:20:32,383 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [782183328] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:20:32,383 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:20:32,383 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 10:20:32,384 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [802158480] [2024-12-02 10:20:32,384 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:20:32,384 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 10:20:32,384 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:20:32,385 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 10:20:32,385 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-12-02 10:20:32,385 INFO L87 Difference]: Start difference. First operand 1262 states and 1872 transitions. Second operand has 5 states, 5 states have (on average 61.2) internal successors, (306), 5 states have internal predecessors, (306), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2024-12-02 10:20:32,871 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:20:32,871 INFO L93 Difference]: Finished difference Result 2053 states and 3043 transitions. [2024-12-02 10:20:32,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 10:20:32,872 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 61.2) internal successors, (306), 5 states have internal predecessors, (306), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 338 [2024-12-02 10:20:32,872 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:20:32,874 INFO L225 Difference]: With dead ends: 2053 [2024-12-02 10:20:32,874 INFO L226 Difference]: Without dead ends: 1266 [2024-12-02 10:20:32,875 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-12-02 10:20:32,876 INFO L435 NwaCegarLoop]: 1038 mSDtfsCounter, 1251 mSDsluCounter, 2065 mSDsCounter, 0 mSdLazyCounter, 918 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1258 SdHoareTripleChecker+Valid, 3103 SdHoareTripleChecker+Invalid, 919 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 918 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-12-02 10:20:32,876 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1258 Valid, 3103 Invalid, 919 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 918 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-12-02 10:20:32,877 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1266 states. [2024-12-02 10:20:32,892 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1266 to 1264. [2024-12-02 10:20:32,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1264 states, 1240 states have (on average 1.4758064516129032) internal successors, (1830), 1240 states have internal predecessors, (1830), 22 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2024-12-02 10:20:32,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1264 states to 1264 states and 1874 transitions. [2024-12-02 10:20:32,895 INFO L78 Accepts]: Start accepts. Automaton has 1264 states and 1874 transitions. Word has length 338 [2024-12-02 10:20:32,895 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:20:32,895 INFO L471 AbstractCegarLoop]: Abstraction has 1264 states and 1874 transitions. [2024-12-02 10:20:32,895 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 61.2) internal successors, (306), 5 states have internal predecessors, (306), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2024-12-02 10:20:32,896 INFO L276 IsEmpty]: Start isEmpty. Operand 1264 states and 1874 transitions. [2024-12-02 10:20:32,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 340 [2024-12-02 10:20:32,907 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:20:32,907 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:20:32,907 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-12-02 10:20:32,908 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:20:32,908 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:20:32,908 INFO L85 PathProgramCache]: Analyzing trace with hash -1813344957, now seen corresponding path program 1 times [2024-12-02 10:20:32,908 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:20:32,908 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1050258873] [2024-12-02 10:20:32,908 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:20:32,909 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:20:33,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:20:33,657 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-12-02 10:20:33,658 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:20:33,658 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1050258873] [2024-12-02 10:20:33,658 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1050258873] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:20:33,658 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:20:33,658 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 10:20:33,658 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [224364927] [2024-12-02 10:20:33,658 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:20:33,659 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 10:20:33,659 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:20:33,659 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 10:20:33,660 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 10:20:33,660 INFO L87 Difference]: Start difference. First operand 1264 states and 1874 transitions. Second operand has 4 states, 4 states have (on average 76.75) internal successors, (307), 4 states have internal predecessors, (307), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-12-02 10:20:34,043 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:20:34,044 INFO L93 Difference]: Finished difference Result 2293 states and 3399 transitions. [2024-12-02 10:20:34,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 10:20:34,044 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 76.75) internal successors, (307), 4 states have internal predecessors, (307), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 339 [2024-12-02 10:20:34,044 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:20:34,046 INFO L225 Difference]: With dead ends: 2293 [2024-12-02 10:20:34,046 INFO L226 Difference]: Without dead ends: 1210 [2024-12-02 10:20:34,047 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 10:20:34,048 INFO L435 NwaCegarLoop]: 1460 mSDtfsCounter, 70 mSDsluCounter, 2500 mSDsCounter, 0 mSdLazyCounter, 328 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 3960 SdHoareTripleChecker+Invalid, 338 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 328 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-12-02 10:20:34,048 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [70 Valid, 3960 Invalid, 338 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 328 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-12-02 10:20:34,049 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1210 states. [2024-12-02 10:20:34,067 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1210 to 1051. [2024-12-02 10:20:34,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1051 states, 1036 states have (on average 1.4768339768339769) internal successors, (1530), 1036 states have internal predecessors, (1530), 13 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2024-12-02 10:20:34,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1051 states to 1051 states and 1556 transitions. [2024-12-02 10:20:34,071 INFO L78 Accepts]: Start accepts. Automaton has 1051 states and 1556 transitions. Word has length 339 [2024-12-02 10:20:34,072 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:20:34,072 INFO L471 AbstractCegarLoop]: Abstraction has 1051 states and 1556 transitions. [2024-12-02 10:20:34,072 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 76.75) internal successors, (307), 4 states have internal predecessors, (307), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-12-02 10:20:34,072 INFO L276 IsEmpty]: Start isEmpty. Operand 1051 states and 1556 transitions. [2024-12-02 10:20:34,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 341 [2024-12-02 10:20:34,075 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:20:34,075 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:20:34,075 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-12-02 10:20:34,075 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:20:34,075 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:20:34,076 INFO L85 PathProgramCache]: Analyzing trace with hash 416889337, now seen corresponding path program 1 times [2024-12-02 10:20:34,076 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:20:34,076 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [224276158] [2024-12-02 10:20:34,076 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:20:34,076 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:20:34,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:20:35,688 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-12-02 10:20:35,688 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:20:35,688 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [224276158] [2024-12-02 10:20:35,688 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [224276158] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:20:35,688 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:20:35,688 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-12-02 10:20:35,688 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [858966021] [2024-12-02 10:20:35,689 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:20:35,689 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-12-02 10:20:35,689 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:20:35,690 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-12-02 10:20:35,690 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-12-02 10:20:35,690 INFO L87 Difference]: Start difference. First operand 1051 states and 1556 transitions. Second operand has 8 states, 8 states have (on average 38.5) internal successors, (308), 8 states have internal predecessors, (308), 3 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-12-02 10:20:35,923 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:20:35,923 INFO L93 Difference]: Finished difference Result 3515 states and 5203 transitions. [2024-12-02 10:20:35,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-02 10:20:35,923 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 38.5) internal successors, (308), 8 states have internal predecessors, (308), 3 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 340 [2024-12-02 10:20:35,924 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:20:35,928 INFO L225 Difference]: With dead ends: 3515 [2024-12-02 10:20:35,928 INFO L226 Difference]: Without dead ends: 2705 [2024-12-02 10:20:35,929 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2024-12-02 10:20:35,929 INFO L435 NwaCegarLoop]: 1373 mSDtfsCounter, 4224 mSDsluCounter, 6264 mSDsCounter, 0 mSdLazyCounter, 200 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4238 SdHoareTripleChecker+Valid, 7637 SdHoareTripleChecker+Invalid, 203 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 200 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 10:20:35,929 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4238 Valid, 7637 Invalid, 203 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 200 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 10:20:35,931 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2705 states. [2024-12-02 10:20:35,958 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2705 to 1295. [2024-12-02 10:20:35,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1295 states, 1270 states have (on average 1.4724409448818898) internal successors, (1870), 1270 states have internal predecessors, (1870), 23 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2024-12-02 10:20:35,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1295 states to 1295 states and 1916 transitions. [2024-12-02 10:20:35,963 INFO L78 Accepts]: Start accepts. Automaton has 1295 states and 1916 transitions. Word has length 340 [2024-12-02 10:20:35,963 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:20:35,963 INFO L471 AbstractCegarLoop]: Abstraction has 1295 states and 1916 transitions. [2024-12-02 10:20:35,963 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 38.5) internal successors, (308), 8 states have internal predecessors, (308), 3 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-12-02 10:20:35,964 INFO L276 IsEmpty]: Start isEmpty. Operand 1295 states and 1916 transitions. [2024-12-02 10:20:35,967 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 342 [2024-12-02 10:20:35,967 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:20:35,967 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:20:35,967 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-12-02 10:20:35,967 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:20:35,968 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:20:35,968 INFO L85 PathProgramCache]: Analyzing trace with hash -835387105, now seen corresponding path program 1 times [2024-12-02 10:20:35,968 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:20:35,968 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1348834047] [2024-12-02 10:20:35,968 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:20:35,968 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:20:36,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:20:36,466 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-12-02 10:20:36,466 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:20:36,466 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1348834047] [2024-12-02 10:20:36,466 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1348834047] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:20:36,466 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:20:36,466 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 10:20:36,466 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [843799749] [2024-12-02 10:20:36,466 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:20:36,467 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 10:20:36,467 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:20:36,468 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 10:20:36,468 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-12-02 10:20:36,468 INFO L87 Difference]: Start difference. First operand 1295 states and 1916 transitions. Second operand has 5 states, 5 states have (on average 61.8) internal successors, (309), 5 states have internal predecessors, (309), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-12-02 10:20:36,956 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:20:36,957 INFO L93 Difference]: Finished difference Result 2165 states and 3203 transitions. [2024-12-02 10:20:36,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 10:20:36,957 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 61.8) internal successors, (309), 5 states have internal predecessors, (309), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 341 [2024-12-02 10:20:36,957 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:20:36,961 INFO L225 Difference]: With dead ends: 2165 [2024-12-02 10:20:36,961 INFO L226 Difference]: Without dead ends: 1303 [2024-12-02 10:20:36,962 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-12-02 10:20:36,963 INFO L435 NwaCegarLoop]: 1038 mSDtfsCounter, 1314 mSDsluCounter, 2044 mSDsCounter, 0 mSdLazyCounter, 936 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1321 SdHoareTripleChecker+Valid, 3082 SdHoareTripleChecker+Invalid, 938 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 936 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-12-02 10:20:36,963 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1321 Valid, 3082 Invalid, 938 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 936 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-12-02 10:20:36,965 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1303 states. [2024-12-02 10:20:36,980 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1303 to 1303. [2024-12-02 10:20:36,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1303 states, 1278 states have (on average 1.4694835680751173) internal successors, (1878), 1278 states have internal predecessors, (1878), 23 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2024-12-02 10:20:36,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1303 states to 1303 states and 1924 transitions. [2024-12-02 10:20:36,984 INFO L78 Accepts]: Start accepts. Automaton has 1303 states and 1924 transitions. Word has length 341 [2024-12-02 10:20:36,985 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:20:36,985 INFO L471 AbstractCegarLoop]: Abstraction has 1303 states and 1924 transitions. [2024-12-02 10:20:36,985 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 61.8) internal successors, (309), 5 states have internal predecessors, (309), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-12-02 10:20:36,985 INFO L276 IsEmpty]: Start isEmpty. Operand 1303 states and 1924 transitions. [2024-12-02 10:20:36,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 342 [2024-12-02 10:20:36,988 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:20:36,989 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:20:36,989 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-12-02 10:20:36,989 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:20:36,989 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:20:36,990 INFO L85 PathProgramCache]: Analyzing trace with hash -415431333, now seen corresponding path program 1 times [2024-12-02 10:20:36,990 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:20:36,990 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1385150686] [2024-12-02 10:20:36,990 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:20:36,990 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:20:37,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:20:37,955 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-12-02 10:20:37,955 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:20:37,955 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1385150686] [2024-12-02 10:20:37,955 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1385150686] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:20:37,955 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:20:37,955 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 10:20:37,956 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [923217149] [2024-12-02 10:20:37,956 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:20:37,956 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 10:20:37,956 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:20:37,957 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 10:20:37,957 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-12-02 10:20:37,957 INFO L87 Difference]: Start difference. First operand 1303 states and 1924 transitions. Second operand has 4 states, 4 states have (on average 77.25) internal successors, (309), 4 states have internal predecessors, (309), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-12-02 10:20:38,419 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:20:38,419 INFO L93 Difference]: Finished difference Result 2094 states and 3092 transitions. [2024-12-02 10:20:38,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 10:20:38,419 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 77.25) internal successors, (309), 4 states have internal predecessors, (309), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 341 [2024-12-02 10:20:38,420 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:20:38,423 INFO L225 Difference]: With dead ends: 2094 [2024-12-02 10:20:38,423 INFO L226 Difference]: Without dead ends: 1303 [2024-12-02 10:20:38,424 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-12-02 10:20:38,424 INFO L435 NwaCegarLoop]: 1039 mSDtfsCounter, 1182 mSDsluCounter, 1027 mSDsCounter, 0 mSdLazyCounter, 601 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1184 SdHoareTripleChecker+Valid, 2066 SdHoareTripleChecker+Invalid, 602 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 601 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-12-02 10:20:38,424 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1184 Valid, 2066 Invalid, 602 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 601 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-12-02 10:20:38,426 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1303 states. [2024-12-02 10:20:38,436 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1303 to 1301. [2024-12-02 10:20:38,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1301 states, 1276 states have (on average 1.469435736677116) internal successors, (1875), 1276 states have internal predecessors, (1875), 23 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2024-12-02 10:20:38,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1301 states to 1301 states and 1921 transitions. [2024-12-02 10:20:38,439 INFO L78 Accepts]: Start accepts. Automaton has 1301 states and 1921 transitions. Word has length 341 [2024-12-02 10:20:38,440 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:20:38,440 INFO L471 AbstractCegarLoop]: Abstraction has 1301 states and 1921 transitions. [2024-12-02 10:20:38,440 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 77.25) internal successors, (309), 4 states have internal predecessors, (309), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-12-02 10:20:38,440 INFO L276 IsEmpty]: Start isEmpty. Operand 1301 states and 1921 transitions. [2024-12-02 10:20:38,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 342 [2024-12-02 10:20:38,443 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:20:38,443 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:20:38,443 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-12-02 10:20:38,443 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:20:38,444 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:20:38,444 INFO L85 PathProgramCache]: Analyzing trace with hash -343243052, now seen corresponding path program 1 times [2024-12-02 10:20:38,444 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:20:38,444 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1950200534] [2024-12-02 10:20:38,444 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:20:38,444 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:20:38,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:20:39,816 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-12-02 10:20:39,816 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:20:39,816 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1950200534] [2024-12-02 10:20:39,816 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1950200534] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:20:39,817 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:20:39,817 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-12-02 10:20:39,817 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1729125850] [2024-12-02 10:20:39,817 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:20:39,817 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-12-02 10:20:39,817 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:20:39,818 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-12-02 10:20:39,818 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-12-02 10:20:39,819 INFO L87 Difference]: Start difference. First operand 1301 states and 1921 transitions. Second operand has 8 states, 8 states have (on average 38.625) internal successors, (309), 8 states have internal predecessors, (309), 3 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-12-02 10:20:40,073 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:20:40,073 INFO L93 Difference]: Finished difference Result 2893 states and 4276 transitions. [2024-12-02 10:20:40,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-02 10:20:40,074 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 38.625) internal successors, (309), 8 states have internal predecessors, (309), 3 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 341 [2024-12-02 10:20:40,074 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:20:40,077 INFO L225 Difference]: With dead ends: 2893 [2024-12-02 10:20:40,078 INFO L226 Difference]: Without dead ends: 2083 [2024-12-02 10:20:40,079 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2024-12-02 10:20:40,079 INFO L435 NwaCegarLoop]: 1343 mSDtfsCounter, 3197 mSDsluCounter, 6567 mSDsCounter, 0 mSdLazyCounter, 336 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3204 SdHoareTripleChecker+Valid, 7910 SdHoareTripleChecker+Invalid, 338 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 336 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 10:20:40,079 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3204 Valid, 7910 Invalid, 338 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 336 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 10:20:40,081 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2083 states. [2024-12-02 10:20:40,109 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2083 to 1401. [2024-12-02 10:20:40,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1401 states, 1370 states have (on average 1.467883211678832) internal successors, (2011), 1370 states have internal predecessors, (2011), 29 states have call successors, (29), 1 states have call predecessors, (29), 1 states have return successors, (29), 29 states have call predecessors, (29), 29 states have call successors, (29) [2024-12-02 10:20:40,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1401 states to 1401 states and 2069 transitions. [2024-12-02 10:20:40,112 INFO L78 Accepts]: Start accepts. Automaton has 1401 states and 2069 transitions. Word has length 341 [2024-12-02 10:20:40,113 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:20:40,113 INFO L471 AbstractCegarLoop]: Abstraction has 1401 states and 2069 transitions. [2024-12-02 10:20:40,113 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 38.625) internal successors, (309), 8 states have internal predecessors, (309), 3 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-12-02 10:20:40,113 INFO L276 IsEmpty]: Start isEmpty. Operand 1401 states and 2069 transitions. [2024-12-02 10:20:40,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 343 [2024-12-02 10:20:40,116 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:20:40,116 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:20:40,116 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-12-02 10:20:40,116 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:20:40,117 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:20:40,117 INFO L85 PathProgramCache]: Analyzing trace with hash -1353775249, now seen corresponding path program 1 times [2024-12-02 10:20:40,117 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:20:40,117 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1929055944] [2024-12-02 10:20:40,117 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:20:40,117 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:20:40,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:20:41,159 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-12-02 10:20:41,160 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:20:41,160 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1929055944] [2024-12-02 10:20:41,160 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1929055944] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:20:41,160 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:20:41,160 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 10:20:41,160 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [374429260] [2024-12-02 10:20:41,160 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:20:41,161 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 10:20:41,161 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:20:41,161 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 10:20:41,161 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-12-02 10:20:41,161 INFO L87 Difference]: Start difference. First operand 1401 states and 2069 transitions. Second operand has 5 states, 5 states have (on average 62.0) internal successors, (310), 5 states have internal predecessors, (310), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-12-02 10:20:41,650 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:20:41,650 INFO L93 Difference]: Finished difference Result 2245 states and 3315 transitions. [2024-12-02 10:20:41,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 10:20:41,650 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 62.0) internal successors, (310), 5 states have internal predecessors, (310), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 342 [2024-12-02 10:20:41,650 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:20:41,653 INFO L225 Difference]: With dead ends: 2245 [2024-12-02 10:20:41,653 INFO L226 Difference]: Without dead ends: 1405 [2024-12-02 10:20:41,653 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-12-02 10:20:41,654 INFO L435 NwaCegarLoop]: 1038 mSDtfsCounter, 1260 mSDsluCounter, 2054 mSDsCounter, 0 mSdLazyCounter, 912 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1262 SdHoareTripleChecker+Valid, 3092 SdHoareTripleChecker+Invalid, 913 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 912 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-12-02 10:20:41,654 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1262 Valid, 3092 Invalid, 913 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 912 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-12-02 10:20:41,655 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1405 states. [2024-12-02 10:20:41,670 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1405 to 1403. [2024-12-02 10:20:41,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1403 states, 1372 states have (on average 1.467201166180758) internal successors, (2013), 1372 states have internal predecessors, (2013), 29 states have call successors, (29), 1 states have call predecessors, (29), 1 states have return successors, (29), 29 states have call predecessors, (29), 29 states have call successors, (29) [2024-12-02 10:20:41,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1403 states to 1403 states and 2071 transitions. [2024-12-02 10:20:41,672 INFO L78 Accepts]: Start accepts. Automaton has 1403 states and 2071 transitions. Word has length 342 [2024-12-02 10:20:41,673 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:20:41,673 INFO L471 AbstractCegarLoop]: Abstraction has 1403 states and 2071 transitions. [2024-12-02 10:20:41,673 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 62.0) internal successors, (310), 5 states have internal predecessors, (310), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-12-02 10:20:41,673 INFO L276 IsEmpty]: Start isEmpty. Operand 1403 states and 2071 transitions. [2024-12-02 10:20:41,675 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 344 [2024-12-02 10:20:41,675 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:20:41,675 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:20:41,675 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-12-02 10:20:41,675 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:20:41,676 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:20:41,676 INFO L85 PathProgramCache]: Analyzing trace with hash 219659034, now seen corresponding path program 1 times [2024-12-02 10:20:41,676 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:20:41,676 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1232452799] [2024-12-02 10:20:41,676 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:20:41,676 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:20:41,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:20:42,653 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-12-02 10:20:42,653 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:20:42,653 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1232452799] [2024-12-02 10:20:42,653 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1232452799] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:20:42,653 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:20:42,653 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-12-02 10:20:42,653 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1329060591] [2024-12-02 10:20:42,653 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:20:42,654 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 10:20:42,654 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:20:42,655 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 10:20:42,655 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-12-02 10:20:42,655 INFO L87 Difference]: Start difference. First operand 1403 states and 2071 transitions. Second operand has 7 states, 7 states have (on average 44.42857142857143) internal successors, (311), 7 states have internal predecessors, (311), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-12-02 10:20:42,806 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:20:42,806 INFO L93 Difference]: Finished difference Result 2418 states and 3568 transitions. [2024-12-02 10:20:42,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 10:20:42,806 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 44.42857142857143) internal successors, (311), 7 states have internal predecessors, (311), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 343 [2024-12-02 10:20:42,806 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:20:42,811 INFO L225 Difference]: With dead ends: 2418 [2024-12-02 10:20:42,811 INFO L226 Difference]: Without dead ends: 1419 [2024-12-02 10:20:42,812 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-12-02 10:20:42,812 INFO L435 NwaCegarLoop]: 1312 mSDtfsCounter, 1241 mSDsluCounter, 5226 mSDsCounter, 0 mSdLazyCounter, 147 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1246 SdHoareTripleChecker+Valid, 6538 SdHoareTripleChecker+Invalid, 148 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 147 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 10:20:42,812 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1246 Valid, 6538 Invalid, 148 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 147 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 10:20:42,814 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1419 states. [2024-12-02 10:20:42,835 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1419 to 1411. [2024-12-02 10:20:42,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1411 states, 1380 states have (on average 1.4615942028985507) internal successors, (2017), 1380 states have internal predecessors, (2017), 29 states have call successors, (29), 1 states have call predecessors, (29), 1 states have return successors, (29), 29 states have call predecessors, (29), 29 states have call successors, (29) [2024-12-02 10:20:42,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1411 states to 1411 states and 2075 transitions. [2024-12-02 10:20:42,839 INFO L78 Accepts]: Start accepts. Automaton has 1411 states and 2075 transitions. Word has length 343 [2024-12-02 10:20:42,839 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:20:42,839 INFO L471 AbstractCegarLoop]: Abstraction has 1411 states and 2075 transitions. [2024-12-02 10:20:42,839 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 44.42857142857143) internal successors, (311), 7 states have internal predecessors, (311), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-12-02 10:20:42,839 INFO L276 IsEmpty]: Start isEmpty. Operand 1411 states and 2075 transitions. [2024-12-02 10:20:42,842 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 344 [2024-12-02 10:20:42,842 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:20:42,842 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:20:42,842 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-12-02 10:20:42,842 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:20:42,843 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:20:42,843 INFO L85 PathProgramCache]: Analyzing trace with hash 131228414, now seen corresponding path program 1 times [2024-12-02 10:20:42,843 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:20:42,843 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2124139380] [2024-12-02 10:20:42,843 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:20:42,843 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:20:42,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:20:43,350 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-12-02 10:20:43,350 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:20:43,350 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2124139380] [2024-12-02 10:20:43,351 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2124139380] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:20:43,351 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:20:43,351 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 10:20:43,351 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1141810808] [2024-12-02 10:20:43,351 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:20:43,351 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 10:20:43,351 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:20:43,352 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 10:20:43,352 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-12-02 10:20:43,352 INFO L87 Difference]: Start difference. First operand 1411 states and 2075 transitions. Second operand has 6 states, 6 states have (on average 51.833333333333336) internal successors, (311), 6 states have internal predecessors, (311), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-12-02 10:20:44,330 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:20:44,330 INFO L93 Difference]: Finished difference Result 3031 states and 4467 transitions. [2024-12-02 10:20:44,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 10:20:44,330 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 51.833333333333336) internal successors, (311), 6 states have internal predecessors, (311), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 343 [2024-12-02 10:20:44,331 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:20:44,334 INFO L225 Difference]: With dead ends: 3031 [2024-12-02 10:20:44,334 INFO L226 Difference]: Without dead ends: 2187 [2024-12-02 10:20:44,335 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-12-02 10:20:44,336 INFO L435 NwaCegarLoop]: 1783 mSDtfsCounter, 2289 mSDsluCounter, 4553 mSDsCounter, 0 mSdLazyCounter, 1914 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2296 SdHoareTripleChecker+Valid, 6336 SdHoareTripleChecker+Invalid, 1915 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1914 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-12-02 10:20:44,336 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2296 Valid, 6336 Invalid, 1915 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1914 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-12-02 10:20:44,337 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2187 states. [2024-12-02 10:20:44,353 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2187 to 1574. [2024-12-02 10:20:44,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1574 states, 1534 states have (on average 1.4615384615384615) internal successors, (2242), 1534 states have internal predecessors, (2242), 38 states have call successors, (38), 1 states have call predecessors, (38), 1 states have return successors, (38), 38 states have call predecessors, (38), 38 states have call successors, (38) [2024-12-02 10:20:44,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1574 states to 1574 states and 2318 transitions. [2024-12-02 10:20:44,357 INFO L78 Accepts]: Start accepts. Automaton has 1574 states and 2318 transitions. Word has length 343 [2024-12-02 10:20:44,357 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:20:44,357 INFO L471 AbstractCegarLoop]: Abstraction has 1574 states and 2318 transitions. [2024-12-02 10:20:44,357 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 51.833333333333336) internal successors, (311), 6 states have internal predecessors, (311), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-12-02 10:20:44,357 INFO L276 IsEmpty]: Start isEmpty. Operand 1574 states and 2318 transitions. [2024-12-02 10:20:44,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 345 [2024-12-02 10:20:44,359 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:20:44,359 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:20:44,359 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-12-02 10:20:44,359 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:20:44,360 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:20:44,360 INFO L85 PathProgramCache]: Analyzing trace with hash -44658110, now seen corresponding path program 1 times [2024-12-02 10:20:44,360 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:20:44,360 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1771051629] [2024-12-02 10:20:44,360 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:20:44,360 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:20:44,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:20:44,751 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-12-02 10:20:44,751 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:20:44,751 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1771051629] [2024-12-02 10:20:44,751 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1771051629] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:20:44,751 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:20:44,751 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 10:20:44,751 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1389542055] [2024-12-02 10:20:44,751 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:20:44,752 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 10:20:44,752 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:20:44,752 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 10:20:44,753 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-12-02 10:20:44,753 INFO L87 Difference]: Start difference. First operand 1574 states and 2318 transitions. Second operand has 6 states, 6 states have (on average 52.0) internal successors, (312), 6 states have internal predecessors, (312), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-12-02 10:20:45,380 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:20:45,381 INFO L93 Difference]: Finished difference Result 2771 states and 4085 transitions. [2024-12-02 10:20:45,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 10:20:45,381 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 52.0) internal successors, (312), 6 states have internal predecessors, (312), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 344 [2024-12-02 10:20:45,381 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:20:45,385 INFO L225 Difference]: With dead ends: 2771 [2024-12-02 10:20:45,385 INFO L226 Difference]: Without dead ends: 1606 [2024-12-02 10:20:45,386 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-12-02 10:20:45,388 INFO L435 NwaCegarLoop]: 1036 mSDtfsCounter, 1311 mSDsluCounter, 3066 mSDsCounter, 0 mSdLazyCounter, 1224 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1318 SdHoareTripleChecker+Valid, 4102 SdHoareTripleChecker+Invalid, 1225 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1224 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-12-02 10:20:45,388 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1318 Valid, 4102 Invalid, 1225 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1224 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-12-02 10:20:45,389 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1606 states. [2024-12-02 10:20:45,404 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1606 to 1590. [2024-12-02 10:20:45,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1590 states, 1550 states have (on average 1.456774193548387) internal successors, (2258), 1550 states have internal predecessors, (2258), 38 states have call successors, (38), 1 states have call predecessors, (38), 1 states have return successors, (38), 38 states have call predecessors, (38), 38 states have call successors, (38) [2024-12-02 10:20:45,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1590 states to 1590 states and 2334 transitions. [2024-12-02 10:20:45,407 INFO L78 Accepts]: Start accepts. Automaton has 1590 states and 2334 transitions. Word has length 344 [2024-12-02 10:20:45,407 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:20:45,407 INFO L471 AbstractCegarLoop]: Abstraction has 1590 states and 2334 transitions. [2024-12-02 10:20:45,407 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 52.0) internal successors, (312), 6 states have internal predecessors, (312), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-12-02 10:20:45,407 INFO L276 IsEmpty]: Start isEmpty. Operand 1590 states and 2334 transitions. [2024-12-02 10:20:45,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 345 [2024-12-02 10:20:45,409 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:20:45,409 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:20:45,409 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-12-02 10:20:45,409 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:20:45,409 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:20:45,409 INFO L85 PathProgramCache]: Analyzing trace with hash 27852551, now seen corresponding path program 1 times [2024-12-02 10:20:45,409 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:20:45,410 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1439741683] [2024-12-02 10:20:45,410 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:20:45,410 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:20:45,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:20:46,607 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-12-02 10:20:46,607 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:20:46,607 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1439741683] [2024-12-02 10:20:46,607 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1439741683] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:20:46,607 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:20:46,607 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 10:20:46,607 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [620133775] [2024-12-02 10:20:46,607 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:20:46,608 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 10:20:46,608 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:20:46,608 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 10:20:46,608 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-12-02 10:20:46,608 INFO L87 Difference]: Start difference. First operand 1590 states and 2334 transitions. Second operand has 6 states, 6 states have (on average 52.0) internal successors, (312), 6 states have internal predecessors, (312), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-12-02 10:20:47,723 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:20:47,724 INFO L93 Difference]: Finished difference Result 3145 states and 4625 transitions. [2024-12-02 10:20:47,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 10:20:47,724 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 52.0) internal successors, (312), 6 states have internal predecessors, (312), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 344 [2024-12-02 10:20:47,724 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:20:47,728 INFO L225 Difference]: With dead ends: 3145 [2024-12-02 10:20:47,728 INFO L226 Difference]: Without dead ends: 2203 [2024-12-02 10:20:47,729 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-12-02 10:20:47,729 INFO L435 NwaCegarLoop]: 1787 mSDtfsCounter, 2193 mSDsluCounter, 4525 mSDsCounter, 0 mSdLazyCounter, 1940 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2200 SdHoareTripleChecker+Valid, 6312 SdHoareTripleChecker+Invalid, 1941 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1940 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-12-02 10:20:47,729 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2200 Valid, 6312 Invalid, 1941 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1940 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-12-02 10:20:47,731 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2203 states. [2024-12-02 10:20:47,761 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2203 to 1824. [2024-12-02 10:20:47,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1824 states, 1784 states have (on average 1.4562780269058295) internal successors, (2598), 1784 states have internal predecessors, (2598), 38 states have call successors, (38), 1 states have call predecessors, (38), 1 states have return successors, (38), 38 states have call predecessors, (38), 38 states have call successors, (38) [2024-12-02 10:20:47,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1824 states to 1824 states and 2674 transitions. [2024-12-02 10:20:47,765 INFO L78 Accepts]: Start accepts. Automaton has 1824 states and 2674 transitions. Word has length 344 [2024-12-02 10:20:47,765 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:20:47,765 INFO L471 AbstractCegarLoop]: Abstraction has 1824 states and 2674 transitions. [2024-12-02 10:20:47,765 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 52.0) internal successors, (312), 6 states have internal predecessors, (312), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-12-02 10:20:47,766 INFO L276 IsEmpty]: Start isEmpty. Operand 1824 states and 2674 transitions. [2024-12-02 10:20:47,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 345 [2024-12-02 10:20:47,769 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:20:47,769 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:20:47,769 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-12-02 10:20:47,769 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:20:47,770 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:20:47,770 INFO L85 PathProgramCache]: Analyzing trace with hash -1556969747, now seen corresponding path program 1 times [2024-12-02 10:20:47,770 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:20:47,770 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1091755155] [2024-12-02 10:20:47,770 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:20:47,770 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:20:48,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:20:48,856 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-12-02 10:20:48,856 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:20:48,856 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1091755155] [2024-12-02 10:20:48,856 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1091755155] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:20:48,856 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:20:48,856 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 10:20:48,856 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1384122854] [2024-12-02 10:20:48,856 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:20:48,857 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 10:20:48,857 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:20:48,857 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 10:20:48,858 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-12-02 10:20:48,858 INFO L87 Difference]: Start difference. First operand 1824 states and 2674 transitions. Second operand has 5 states, 5 states have (on average 62.4) internal successors, (312), 5 states have internal predecessors, (312), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2024-12-02 10:20:49,357 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:20:49,357 INFO L93 Difference]: Finished difference Result 3008 states and 4410 transitions. [2024-12-02 10:20:49,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 10:20:49,357 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 62.4) internal successors, (312), 5 states have internal predecessors, (312), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 344 [2024-12-02 10:20:49,357 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:20:49,360 INFO L225 Difference]: With dead ends: 3008 [2024-12-02 10:20:49,360 INFO L226 Difference]: Without dead ends: 1832 [2024-12-02 10:20:49,361 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-12-02 10:20:49,361 INFO L435 NwaCegarLoop]: 1038 mSDtfsCounter, 1102 mSDsluCounter, 2043 mSDsCounter, 0 mSdLazyCounter, 912 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1102 SdHoareTripleChecker+Valid, 3081 SdHoareTripleChecker+Invalid, 912 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 912 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-12-02 10:20:49,361 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1102 Valid, 3081 Invalid, 912 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 912 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-12-02 10:20:49,362 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1832 states. [2024-12-02 10:20:49,388 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1832 to 1830. [2024-12-02 10:20:49,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1830 states, 1790 states have (on average 1.4547486033519552) internal successors, (2604), 1790 states have internal predecessors, (2604), 38 states have call successors, (38), 1 states have call predecessors, (38), 1 states have return successors, (38), 38 states have call predecessors, (38), 38 states have call successors, (38) [2024-12-02 10:20:49,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1830 states to 1830 states and 2680 transitions. [2024-12-02 10:20:49,392 INFO L78 Accepts]: Start accepts. Automaton has 1830 states and 2680 transitions. Word has length 344 [2024-12-02 10:20:49,393 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:20:49,393 INFO L471 AbstractCegarLoop]: Abstraction has 1830 states and 2680 transitions. [2024-12-02 10:20:49,393 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 62.4) internal successors, (312), 5 states have internal predecessors, (312), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2024-12-02 10:20:49,393 INFO L276 IsEmpty]: Start isEmpty. Operand 1830 states and 2680 transitions. [2024-12-02 10:20:49,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 346 [2024-12-02 10:20:49,396 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:20:49,396 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:20:49,396 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-12-02 10:20:49,396 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:20:49,396 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:20:49,396 INFO L85 PathProgramCache]: Analyzing trace with hash 115957396, now seen corresponding path program 1 times [2024-12-02 10:20:49,396 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:20:49,396 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1783262933] [2024-12-02 10:20:49,396 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:20:49,396 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:20:49,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:20:50,364 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-12-02 10:20:50,364 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:20:50,364 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1783262933] [2024-12-02 10:20:50,364 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1783262933] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:20:50,364 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:20:50,364 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 10:20:50,364 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1785184744] [2024-12-02 10:20:50,364 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:20:50,365 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 10:20:50,365 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:20:50,365 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 10:20:50,365 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 10:20:50,366 INFO L87 Difference]: Start difference. First operand 1830 states and 2680 transitions. Second operand has 5 states, 5 states have (on average 62.6) internal successors, (313), 5 states have internal predecessors, (313), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2024-12-02 10:20:50,425 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:20:50,426 INFO L93 Difference]: Finished difference Result 3540 states and 5180 transitions. [2024-12-02 10:20:50,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 10:20:50,426 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 62.6) internal successors, (313), 5 states have internal predecessors, (313), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 345 [2024-12-02 10:20:50,426 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:20:50,429 INFO L225 Difference]: With dead ends: 3540 [2024-12-02 10:20:50,430 INFO L226 Difference]: Without dead ends: 2358 [2024-12-02 10:20:50,431 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 10:20:50,431 INFO L435 NwaCegarLoop]: 1329 mSDtfsCounter, 274 mSDsluCounter, 3978 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 274 SdHoareTripleChecker+Valid, 5307 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 10:20:50,431 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [274 Valid, 5307 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 10:20:50,433 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2358 states. [2024-12-02 10:20:50,454 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2358 to 2356. [2024-12-02 10:20:50,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2356 states, 2316 states have (on average 1.454231433506045) internal successors, (3368), 2316 states have internal predecessors, (3368), 38 states have call successors, (38), 1 states have call predecessors, (38), 1 states have return successors, (38), 38 states have call predecessors, (38), 38 states have call successors, (38) [2024-12-02 10:20:50,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2356 states to 2356 states and 3444 transitions. [2024-12-02 10:20:50,459 INFO L78 Accepts]: Start accepts. Automaton has 2356 states and 3444 transitions. Word has length 345 [2024-12-02 10:20:50,459 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:20:50,459 INFO L471 AbstractCegarLoop]: Abstraction has 2356 states and 3444 transitions. [2024-12-02 10:20:50,459 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 62.6) internal successors, (313), 5 states have internal predecessors, (313), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2024-12-02 10:20:50,459 INFO L276 IsEmpty]: Start isEmpty. Operand 2356 states and 3444 transitions. [2024-12-02 10:20:50,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 347 [2024-12-02 10:20:50,462 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:20:50,462 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:20:50,462 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-12-02 10:20:50,462 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:20:50,462 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:20:50,462 INFO L85 PathProgramCache]: Analyzing trace with hash 208600615, now seen corresponding path program 1 times [2024-12-02 10:20:50,462 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:20:50,462 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [225407894] [2024-12-02 10:20:50,462 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:20:50,462 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:20:50,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:20:51,314 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-12-02 10:20:51,314 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:20:51,314 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [225407894] [2024-12-02 10:20:51,314 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [225407894] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:20:51,314 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:20:51,314 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 10:20:51,314 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [745822443] [2024-12-02 10:20:51,314 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:20:51,315 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 10:20:51,315 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:20:51,315 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 10:20:51,315 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-12-02 10:20:51,315 INFO L87 Difference]: Start difference. First operand 2356 states and 3444 transitions. Second operand has 4 states, 4 states have (on average 78.5) internal successors, (314), 4 states have internal predecessors, (314), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2024-12-02 10:20:51,699 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:20:51,699 INFO L93 Difference]: Finished difference Result 4064 states and 5940 transitions. [2024-12-02 10:20:51,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 10:20:51,700 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 78.5) internal successors, (314), 4 states have internal predecessors, (314), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 346 [2024-12-02 10:20:51,700 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:20:51,703 INFO L225 Difference]: With dead ends: 4064 [2024-12-02 10:20:51,703 INFO L226 Difference]: Without dead ends: 2356 [2024-12-02 10:20:51,705 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-12-02 10:20:51,705 INFO L435 NwaCegarLoop]: 1039 mSDtfsCounter, 1096 mSDsluCounter, 1027 mSDsCounter, 0 mSdLazyCounter, 599 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1096 SdHoareTripleChecker+Valid, 2066 SdHoareTripleChecker+Invalid, 599 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 599 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-12-02 10:20:51,705 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1096 Valid, 2066 Invalid, 599 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 599 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-12-02 10:20:51,707 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2356 states. [2024-12-02 10:20:51,727 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2356 to 2344. [2024-12-02 10:20:51,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2344 states, 2304 states have (on average 1.4548611111111112) internal successors, (3352), 2304 states have internal predecessors, (3352), 38 states have call successors, (38), 1 states have call predecessors, (38), 1 states have return successors, (38), 38 states have call predecessors, (38), 38 states have call successors, (38) [2024-12-02 10:20:51,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2344 states to 2344 states and 3428 transitions. [2024-12-02 10:20:51,732 INFO L78 Accepts]: Start accepts. Automaton has 2344 states and 3428 transitions. Word has length 346 [2024-12-02 10:20:51,732 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:20:51,732 INFO L471 AbstractCegarLoop]: Abstraction has 2344 states and 3428 transitions. [2024-12-02 10:20:51,732 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 78.5) internal successors, (314), 4 states have internal predecessors, (314), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2024-12-02 10:20:51,732 INFO L276 IsEmpty]: Start isEmpty. Operand 2344 states and 3428 transitions. [2024-12-02 10:20:51,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 347 [2024-12-02 10:20:51,735 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:20:51,735 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:20:51,735 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-12-02 10:20:51,735 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:20:51,736 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:20:51,736 INFO L85 PathProgramCache]: Analyzing trace with hash -294038429, now seen corresponding path program 1 times [2024-12-02 10:20:51,736 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:20:51,736 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1134210180] [2024-12-02 10:20:51,736 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:20:51,736 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:20:52,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:20:53,105 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-12-02 10:20:53,106 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:20:53,106 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1134210180] [2024-12-02 10:20:53,106 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1134210180] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:20:53,106 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:20:53,106 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-12-02 10:20:53,106 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1102596139] [2024-12-02 10:20:53,106 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:20:53,106 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-12-02 10:20:53,106 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:20:53,107 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-12-02 10:20:53,107 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2024-12-02 10:20:53,107 INFO L87 Difference]: Start difference. First operand 2344 states and 3428 transitions. Second operand has 10 states, 10 states have (on average 31.4) internal successors, (314), 10 states have internal predecessors, (314), 3 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-12-02 10:20:54,170 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:20:54,170 INFO L93 Difference]: Finished difference Result 4295 states and 6286 transitions. [2024-12-02 10:20:54,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-12-02 10:20:54,171 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 31.4) internal successors, (314), 10 states have internal predecessors, (314), 3 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 346 [2024-12-02 10:20:54,171 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:20:54,175 INFO L225 Difference]: With dead ends: 4295 [2024-12-02 10:20:54,175 INFO L226 Difference]: Without dead ends: 2440 [2024-12-02 10:20:54,176 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2024-12-02 10:20:54,177 INFO L435 NwaCegarLoop]: 1028 mSDtfsCounter, 1307 mSDsluCounter, 6113 mSDsCounter, 0 mSdLazyCounter, 2196 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1313 SdHoareTripleChecker+Valid, 7141 SdHoareTripleChecker+Invalid, 2199 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 2196 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-12-02 10:20:54,177 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1313 Valid, 7141 Invalid, 2199 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 2196 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-12-02 10:20:54,179 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2440 states. [2024-12-02 10:20:54,199 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2440 to 2408. [2024-12-02 10:20:54,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2408 states, 2368 states have (on average 1.4527027027027026) internal successors, (3440), 2368 states have internal predecessors, (3440), 38 states have call successors, (38), 1 states have call predecessors, (38), 1 states have return successors, (38), 38 states have call predecessors, (38), 38 states have call successors, (38) [2024-12-02 10:20:54,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2408 states to 2408 states and 3516 transitions. [2024-12-02 10:20:54,204 INFO L78 Accepts]: Start accepts. Automaton has 2408 states and 3516 transitions. Word has length 346 [2024-12-02 10:20:54,204 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:20:54,204 INFO L471 AbstractCegarLoop]: Abstraction has 2408 states and 3516 transitions. [2024-12-02 10:20:54,204 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 31.4) internal successors, (314), 10 states have internal predecessors, (314), 3 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-12-02 10:20:54,204 INFO L276 IsEmpty]: Start isEmpty. Operand 2408 states and 3516 transitions. [2024-12-02 10:20:54,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 348 [2024-12-02 10:20:54,206 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:20:54,206 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:20:54,206 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-12-02 10:20:54,206 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:20:54,207 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:20:54,207 INFO L85 PathProgramCache]: Analyzing trace with hash 702035107, now seen corresponding path program 1 times [2024-12-02 10:20:54,207 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:20:54,207 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1279835130] [2024-12-02 10:20:54,207 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:20:54,207 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:20:54,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:20:55,298 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-12-02 10:20:55,298 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:20:55,298 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1279835130] [2024-12-02 10:20:55,298 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1279835130] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:20:55,298 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:20:55,298 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-12-02 10:20:55,298 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [459084295] [2024-12-02 10:20:55,298 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:20:55,298 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 10:20:55,298 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:20:55,299 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 10:20:55,299 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-12-02 10:20:55,299 INFO L87 Difference]: Start difference. First operand 2408 states and 3516 transitions. Second operand has 7 states, 7 states have (on average 45.0) internal successors, (315), 7 states have internal predecessors, (315), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-12-02 10:20:55,681 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:20:55,681 INFO L93 Difference]: Finished difference Result 4671 states and 6813 transitions. [2024-12-02 10:20:55,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 10:20:55,681 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 45.0) internal successors, (315), 7 states have internal predecessors, (315), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 347 [2024-12-02 10:20:55,682 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:20:55,685 INFO L225 Difference]: With dead ends: 4671 [2024-12-02 10:20:55,685 INFO L226 Difference]: Without dead ends: 2424 [2024-12-02 10:20:55,687 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2024-12-02 10:20:55,687 INFO L435 NwaCegarLoop]: 1307 mSDtfsCounter, 1287 mSDsluCounter, 4945 mSDsCounter, 0 mSdLazyCounter, 420 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1294 SdHoareTripleChecker+Valid, 6252 SdHoareTripleChecker+Invalid, 425 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 420 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-12-02 10:20:55,688 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1294 Valid, 6252 Invalid, 425 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 420 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-12-02 10:20:55,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2424 states. [2024-12-02 10:20:55,709 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2424 to 2416. [2024-12-02 10:20:55,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2416 states, 2376 states have (on average 1.4494949494949494) internal successors, (3444), 2376 states have internal predecessors, (3444), 38 states have call successors, (38), 1 states have call predecessors, (38), 1 states have return successors, (38), 38 states have call predecessors, (38), 38 states have call successors, (38) [2024-12-02 10:20:55,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2416 states to 2416 states and 3520 transitions. [2024-12-02 10:20:55,713 INFO L78 Accepts]: Start accepts. Automaton has 2416 states and 3520 transitions. Word has length 347 [2024-12-02 10:20:55,714 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:20:55,714 INFO L471 AbstractCegarLoop]: Abstraction has 2416 states and 3520 transitions. [2024-12-02 10:20:55,714 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 45.0) internal successors, (315), 7 states have internal predecessors, (315), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-12-02 10:20:55,714 INFO L276 IsEmpty]: Start isEmpty. Operand 2416 states and 3520 transitions. [2024-12-02 10:20:55,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 349 [2024-12-02 10:20:55,716 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:20:55,717 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:20:55,717 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-12-02 10:20:55,717 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:20:55,717 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:20:55,717 INFO L85 PathProgramCache]: Analyzing trace with hash 1705220274, now seen corresponding path program 1 times [2024-12-02 10:20:55,717 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:20:55,717 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1803670020] [2024-12-02 10:20:55,718 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:20:55,718 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:20:56,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:20:56,882 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-12-02 10:20:56,882 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:20:56,882 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1803670020] [2024-12-02 10:20:56,882 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1803670020] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:20:56,882 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:20:56,882 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-12-02 10:20:56,882 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [61433293] [2024-12-02 10:20:56,883 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:20:56,883 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 10:20:56,883 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:20:56,883 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 10:20:56,884 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-12-02 10:20:56,884 INFO L87 Difference]: Start difference. First operand 2416 states and 3520 transitions. Second operand has 7 states, 7 states have (on average 45.142857142857146) internal successors, (316), 7 states have internal predecessors, (316), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-12-02 10:20:57,599 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:20:57,599 INFO L93 Difference]: Finished difference Result 4443 states and 6485 transitions. [2024-12-02 10:20:57,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 10:20:57,600 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 45.142857142857146) internal successors, (316), 7 states have internal predecessors, (316), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 348 [2024-12-02 10:20:57,600 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:20:57,603 INFO L225 Difference]: With dead ends: 4443 [2024-12-02 10:20:57,604 INFO L226 Difference]: Without dead ends: 2432 [2024-12-02 10:20:57,605 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2024-12-02 10:20:57,605 INFO L435 NwaCegarLoop]: 1019 mSDtfsCounter, 1293 mSDsluCounter, 3051 mSDsCounter, 0 mSdLazyCounter, 1293 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1298 SdHoareTripleChecker+Valid, 4070 SdHoareTripleChecker+Invalid, 1295 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1293 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-12-02 10:20:57,606 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1298 Valid, 4070 Invalid, 1295 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1293 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-12-02 10:20:57,607 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2432 states. [2024-12-02 10:20:57,631 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2432 to 2416. [2024-12-02 10:20:57,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2416 states, 2376 states have (on average 1.4461279461279462) internal successors, (3436), 2376 states have internal predecessors, (3436), 38 states have call successors, (38), 1 states have call predecessors, (38), 1 states have return successors, (38), 38 states have call predecessors, (38), 38 states have call successors, (38) [2024-12-02 10:20:57,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2416 states to 2416 states and 3512 transitions. [2024-12-02 10:20:57,638 INFO L78 Accepts]: Start accepts. Automaton has 2416 states and 3512 transitions. Word has length 348 [2024-12-02 10:20:57,638 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:20:57,638 INFO L471 AbstractCegarLoop]: Abstraction has 2416 states and 3512 transitions. [2024-12-02 10:20:57,639 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 45.142857142857146) internal successors, (316), 7 states have internal predecessors, (316), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-12-02 10:20:57,639 INFO L276 IsEmpty]: Start isEmpty. Operand 2416 states and 3512 transitions. [2024-12-02 10:20:57,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 350 [2024-12-02 10:20:57,642 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:20:57,642 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:20:57,642 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2024-12-02 10:20:57,643 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:20:57,643 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:20:57,643 INFO L85 PathProgramCache]: Analyzing trace with hash 1475377258, now seen corresponding path program 1 times [2024-12-02 10:20:57,643 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:20:57,643 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [396827560] [2024-12-02 10:20:57,643 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:20:57,643 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:20:58,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:20:59,120 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-12-02 10:20:59,121 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:20:59,121 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [396827560] [2024-12-02 10:20:59,121 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [396827560] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:20:59,121 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:20:59,121 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-12-02 10:20:59,121 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2062453750] [2024-12-02 10:20:59,121 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:20:59,122 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 10:20:59,122 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:20:59,122 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 10:20:59,122 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-12-02 10:20:59,123 INFO L87 Difference]: Start difference. First operand 2416 states and 3512 transitions. Second operand has 7 states, 7 states have (on average 45.285714285714285) internal successors, (317), 7 states have internal predecessors, (317), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2024-12-02 10:20:59,268 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:20:59,268 INFO L93 Difference]: Finished difference Result 5525 states and 8039 transitions. [2024-12-02 10:20:59,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 10:20:59,268 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 45.285714285714285) internal successors, (317), 7 states have internal predecessors, (317), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 349 [2024-12-02 10:20:59,269 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:20:59,276 INFO L225 Difference]: With dead ends: 5525 [2024-12-02 10:20:59,276 INFO L226 Difference]: Without dead ends: 3803 [2024-12-02 10:20:59,278 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2024-12-02 10:20:59,279 INFO L435 NwaCegarLoop]: 1312 mSDtfsCounter, 2785 mSDsluCounter, 5236 mSDsCounter, 0 mSdLazyCounter, 122 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2792 SdHoareTripleChecker+Valid, 6548 SdHoareTripleChecker+Invalid, 130 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 122 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 10:20:59,279 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2792 Valid, 6548 Invalid, 130 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 122 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 10:20:59,282 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3803 states. [2024-12-02 10:20:59,329 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3803 to 3803. [2024-12-02 10:20:59,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3803 states, 3748 states have (on average 1.4463713980789754) internal successors, (5421), 3748 states have internal predecessors, (5421), 53 states have call successors, (53), 1 states have call predecessors, (53), 1 states have return successors, (53), 53 states have call predecessors, (53), 53 states have call successors, (53) [2024-12-02 10:20:59,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3803 states to 3803 states and 5527 transitions. [2024-12-02 10:20:59,338 INFO L78 Accepts]: Start accepts. Automaton has 3803 states and 5527 transitions. Word has length 349 [2024-12-02 10:20:59,338 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:20:59,338 INFO L471 AbstractCegarLoop]: Abstraction has 3803 states and 5527 transitions. [2024-12-02 10:20:59,338 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 45.285714285714285) internal successors, (317), 7 states have internal predecessors, (317), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2024-12-02 10:20:59,339 INFO L276 IsEmpty]: Start isEmpty. Operand 3803 states and 5527 transitions. [2024-12-02 10:20:59,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 793 [2024-12-02 10:20:59,347 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:20:59,347 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:20:59,348 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2024-12-02 10:20:59,348 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:20:59,348 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:20:59,348 INFO L85 PathProgramCache]: Analyzing trace with hash -1745753261, now seen corresponding path program 1 times [2024-12-02 10:20:59,348 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:20:59,348 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2072882282] [2024-12-02 10:20:59,349 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:20:59,349 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:21:00,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:21:01,472 INFO L134 CoverageAnalysis]: Checked inductivity of 619 backedges. 255 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-12-02 10:21:01,472 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:21:01,472 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2072882282] [2024-12-02 10:21:01,472 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2072882282] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:21:01,472 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:21:01,472 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 10:21:01,472 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1306438075] [2024-12-02 10:21:01,472 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:21:01,473 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 10:21:01,473 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:21:01,474 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 10:21:01,474 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-12-02 10:21:01,474 INFO L87 Difference]: Start difference. First operand 3803 states and 5527 transitions. Second operand has 5 states, 5 states have (on average 145.0) internal successors, (725), 5 states have internal predecessors, (725), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-12-02 10:21:01,587 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:21:01,587 INFO L93 Difference]: Finished difference Result 5525 states and 8038 transitions. [2024-12-02 10:21:01,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 10:21:01,588 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 145.0) internal successors, (725), 5 states have internal predecessors, (725), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 792 [2024-12-02 10:21:01,588 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:21:01,592 INFO L225 Difference]: With dead ends: 5525 [2024-12-02 10:21:01,592 INFO L226 Difference]: Without dead ends: 3803 [2024-12-02 10:21:01,594 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-12-02 10:21:01,595 INFO L435 NwaCegarLoop]: 1284 mSDtfsCounter, 2100 mSDsluCounter, 1286 mSDsCounter, 0 mSdLazyCounter, 100 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2107 SdHoareTripleChecker+Valid, 2570 SdHoareTripleChecker+Invalid, 101 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 100 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 10:21:01,595 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2107 Valid, 2570 Invalid, 101 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 100 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 10:21:01,597 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3803 states. [2024-12-02 10:21:01,627 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3803 to 3803. [2024-12-02 10:21:01,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3803 states, 3748 states have (on average 1.4461045891141941) internal successors, (5420), 3748 states have internal predecessors, (5420), 53 states have call successors, (53), 1 states have call predecessors, (53), 1 states have return successors, (53), 53 states have call predecessors, (53), 53 states have call successors, (53) [2024-12-02 10:21:01,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3803 states to 3803 states and 5526 transitions. [2024-12-02 10:21:01,633 INFO L78 Accepts]: Start accepts. Automaton has 3803 states and 5526 transitions. Word has length 792 [2024-12-02 10:21:01,633 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:21:01,633 INFO L471 AbstractCegarLoop]: Abstraction has 3803 states and 5526 transitions. [2024-12-02 10:21:01,634 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 145.0) internal successors, (725), 5 states have internal predecessors, (725), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-12-02 10:21:01,634 INFO L276 IsEmpty]: Start isEmpty. Operand 3803 states and 5526 transitions. [2024-12-02 10:21:01,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 794 [2024-12-02 10:21:01,640 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:21:01,640 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:21:01,640 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2024-12-02 10:21:01,640 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:21:01,640 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:21:01,640 INFO L85 PathProgramCache]: Analyzing trace with hash -1725395452, now seen corresponding path program 1 times [2024-12-02 10:21:01,641 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:21:01,641 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1093123866] [2024-12-02 10:21:01,641 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:21:01,641 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:21:02,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:21:02,793 INFO L134 CoverageAnalysis]: Checked inductivity of 619 backedges. 255 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-12-02 10:21:02,793 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:21:02,793 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1093123866] [2024-12-02 10:21:02,793 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1093123866] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:21:02,793 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:21:02,793 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 10:21:02,794 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [306268823] [2024-12-02 10:21:02,794 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:21:02,794 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 10:21:02,794 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:21:02,795 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 10:21:02,795 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-12-02 10:21:02,795 INFO L87 Difference]: Start difference. First operand 3803 states and 5526 transitions. Second operand has 5 states, 5 states have (on average 145.2) internal successors, (726), 5 states have internal predecessors, (726), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-12-02 10:21:02,902 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:21:02,902 INFO L93 Difference]: Finished difference Result 5525 states and 8036 transitions. [2024-12-02 10:21:02,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 10:21:02,903 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 145.2) internal successors, (726), 5 states have internal predecessors, (726), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 793 [2024-12-02 10:21:02,904 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:21:02,907 INFO L225 Difference]: With dead ends: 5525 [2024-12-02 10:21:02,907 INFO L226 Difference]: Without dead ends: 3803 [2024-12-02 10:21:02,910 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-12-02 10:21:02,910 INFO L435 NwaCegarLoop]: 1284 mSDtfsCounter, 2084 mSDsluCounter, 1286 mSDsCounter, 0 mSdLazyCounter, 98 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2091 SdHoareTripleChecker+Valid, 2570 SdHoareTripleChecker+Invalid, 99 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 98 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 10:21:02,910 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2091 Valid, 2570 Invalid, 99 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 98 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 10:21:02,914 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3803 states. [2024-12-02 10:21:02,962 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3803 to 3803. [2024-12-02 10:21:02,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3803 states, 3748 states have (on average 1.445837780149413) internal successors, (5419), 3748 states have internal predecessors, (5419), 53 states have call successors, (53), 1 states have call predecessors, (53), 1 states have return successors, (53), 53 states have call predecessors, (53), 53 states have call successors, (53) [2024-12-02 10:21:02,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3803 states to 3803 states and 5525 transitions. [2024-12-02 10:21:02,971 INFO L78 Accepts]: Start accepts. Automaton has 3803 states and 5525 transitions. Word has length 793 [2024-12-02 10:21:02,971 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:21:02,971 INFO L471 AbstractCegarLoop]: Abstraction has 3803 states and 5525 transitions. [2024-12-02 10:21:02,972 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 145.2) internal successors, (726), 5 states have internal predecessors, (726), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-12-02 10:21:02,972 INFO L276 IsEmpty]: Start isEmpty. Operand 3803 states and 5525 transitions. [2024-12-02 10:21:02,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 795 [2024-12-02 10:21:02,980 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:21:02,981 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:21:02,981 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2024-12-02 10:21:02,981 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:21:02,981 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:21:02,982 INFO L85 PathProgramCache]: Analyzing trace with hash -443315928, now seen corresponding path program 1 times [2024-12-02 10:21:02,982 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:21:02,982 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1962220576] [2024-12-02 10:21:02,982 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:21:02,982 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:21:03,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:21:04,248 INFO L134 CoverageAnalysis]: Checked inductivity of 619 backedges. 255 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-12-02 10:21:04,248 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:21:04,248 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1962220576] [2024-12-02 10:21:04,248 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1962220576] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:21:04,248 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:21:04,248 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 10:21:04,248 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1479423860] [2024-12-02 10:21:04,248 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:21:04,249 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 10:21:04,249 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:21:04,250 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 10:21:04,250 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-12-02 10:21:04,250 INFO L87 Difference]: Start difference. First operand 3803 states and 5525 transitions. Second operand has 5 states, 5 states have (on average 145.4) internal successors, (727), 5 states have internal predecessors, (727), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-12-02 10:21:04,686 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:21:04,686 INFO L93 Difference]: Finished difference Result 5525 states and 8034 transitions. [2024-12-02 10:21:04,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 10:21:04,687 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 145.4) internal successors, (727), 5 states have internal predecessors, (727), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 794 [2024-12-02 10:21:04,687 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:21:04,691 INFO L225 Difference]: With dead ends: 5525 [2024-12-02 10:21:04,691 INFO L226 Difference]: Without dead ends: 3803 [2024-12-02 10:21:04,693 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-12-02 10:21:04,694 INFO L435 NwaCegarLoop]: 1021 mSDtfsCounter, 1026 mSDsluCounter, 1034 mSDsCounter, 0 mSdLazyCounter, 622 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1026 SdHoareTripleChecker+Valid, 2055 SdHoareTripleChecker+Invalid, 623 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 622 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-12-02 10:21:04,694 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1026 Valid, 2055 Invalid, 623 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 622 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-12-02 10:21:04,696 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3803 states. [2024-12-02 10:21:04,764 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3803 to 3803. [2024-12-02 10:21:04,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3803 states, 3748 states have (on average 1.4455709711846318) internal successors, (5418), 3748 states have internal predecessors, (5418), 53 states have call successors, (53), 1 states have call predecessors, (53), 1 states have return successors, (53), 53 states have call predecessors, (53), 53 states have call successors, (53) [2024-12-02 10:21:04,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3803 states to 3803 states and 5524 transitions. [2024-12-02 10:21:04,770 INFO L78 Accepts]: Start accepts. Automaton has 3803 states and 5524 transitions. Word has length 794 [2024-12-02 10:21:04,771 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:21:04,771 INFO L471 AbstractCegarLoop]: Abstraction has 3803 states and 5524 transitions. [2024-12-02 10:21:04,771 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 145.4) internal successors, (727), 5 states have internal predecessors, (727), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-12-02 10:21:04,771 INFO L276 IsEmpty]: Start isEmpty. Operand 3803 states and 5524 transitions. [2024-12-02 10:21:04,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 796 [2024-12-02 10:21:04,777 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:21:04,777 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:21:04,777 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2024-12-02 10:21:04,777 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:21:04,778 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:21:04,778 INFO L85 PathProgramCache]: Analyzing trace with hash 603874809, now seen corresponding path program 1 times [2024-12-02 10:21:04,778 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:21:04,778 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1095412127] [2024-12-02 10:21:04,778 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:21:04,778 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:21:05,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:21:05,925 INFO L134 CoverageAnalysis]: Checked inductivity of 619 backedges. 255 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-12-02 10:21:05,925 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:21:05,925 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1095412127] [2024-12-02 10:21:05,925 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1095412127] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:21:05,925 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:21:05,925 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 10:21:05,925 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1578874177] [2024-12-02 10:21:05,925 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:21:05,926 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 10:21:05,926 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:21:05,927 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 10:21:05,927 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-12-02 10:21:05,927 INFO L87 Difference]: Start difference. First operand 3803 states and 5524 transitions. Second operand has 5 states, 5 states have (on average 145.6) internal successors, (728), 5 states have internal predecessors, (728), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-12-02 10:21:06,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:21:06,023 INFO L93 Difference]: Finished difference Result 5525 states and 8032 transitions. [2024-12-02 10:21:06,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 10:21:06,023 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 145.6) internal successors, (728), 5 states have internal predecessors, (728), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 795 [2024-12-02 10:21:06,024 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:21:06,026 INFO L225 Difference]: With dead ends: 5525 [2024-12-02 10:21:06,026 INFO L226 Difference]: Without dead ends: 3803 [2024-12-02 10:21:06,028 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-12-02 10:21:06,028 INFO L435 NwaCegarLoop]: 1283 mSDtfsCounter, 1069 mSDsluCounter, 1296 mSDsCounter, 0 mSdLazyCounter, 96 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1076 SdHoareTripleChecker+Valid, 2579 SdHoareTripleChecker+Invalid, 97 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 96 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 10:21:06,028 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1076 Valid, 2579 Invalid, 97 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 96 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 10:21:06,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3803 states. [2024-12-02 10:21:06,062 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3803 to 3803. [2024-12-02 10:21:06,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3803 states, 3748 states have (on average 1.4453041622198506) internal successors, (5417), 3748 states have internal predecessors, (5417), 53 states have call successors, (53), 1 states have call predecessors, (53), 1 states have return successors, (53), 53 states have call predecessors, (53), 53 states have call successors, (53) [2024-12-02 10:21:06,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3803 states to 3803 states and 5523 transitions. [2024-12-02 10:21:06,067 INFO L78 Accepts]: Start accepts. Automaton has 3803 states and 5523 transitions. Word has length 795 [2024-12-02 10:21:06,068 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:21:06,068 INFO L471 AbstractCegarLoop]: Abstraction has 3803 states and 5523 transitions. [2024-12-02 10:21:06,068 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 145.6) internal successors, (728), 5 states have internal predecessors, (728), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-12-02 10:21:06,068 INFO L276 IsEmpty]: Start isEmpty. Operand 3803 states and 5523 transitions. [2024-12-02 10:21:06,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 797 [2024-12-02 10:21:06,074 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:21:06,074 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:21:06,074 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2024-12-02 10:21:06,074 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:21:06,075 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:21:06,075 INFO L85 PathProgramCache]: Analyzing trace with hash -106973996, now seen corresponding path program 1 times [2024-12-02 10:21:06,075 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:21:06,075 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [898809157] [2024-12-02 10:21:06,075 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:21:06,075 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:21:06,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:21:07,196 INFO L134 CoverageAnalysis]: Checked inductivity of 619 backedges. 255 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-12-02 10:21:07,196 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:21:07,196 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [898809157] [2024-12-02 10:21:07,197 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [898809157] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:21:07,197 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:21:07,197 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 10:21:07,197 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [4412947] [2024-12-02 10:21:07,197 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:21:07,197 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 10:21:07,197 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:21:07,198 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 10:21:07,198 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-12-02 10:21:07,198 INFO L87 Difference]: Start difference. First operand 3803 states and 5523 transitions. Second operand has 5 states, 5 states have (on average 145.8) internal successors, (729), 5 states have internal predecessors, (729), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-12-02 10:21:07,291 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:21:07,291 INFO L93 Difference]: Finished difference Result 5525 states and 8030 transitions. [2024-12-02 10:21:07,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 10:21:07,292 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 145.8) internal successors, (729), 5 states have internal predecessors, (729), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 796 [2024-12-02 10:21:07,292 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:21:07,294 INFO L225 Difference]: With dead ends: 5525 [2024-12-02 10:21:07,294 INFO L226 Difference]: Without dead ends: 3803 [2024-12-02 10:21:07,296 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-12-02 10:21:07,296 INFO L435 NwaCegarLoop]: 1283 mSDtfsCounter, 1061 mSDsluCounter, 1296 mSDsCounter, 0 mSdLazyCounter, 94 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1068 SdHoareTripleChecker+Valid, 2579 SdHoareTripleChecker+Invalid, 95 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 94 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 10:21:07,296 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1068 Valid, 2579 Invalid, 95 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 94 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 10:21:07,298 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3803 states. [2024-12-02 10:21:07,327 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3803 to 3803. [2024-12-02 10:21:07,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3803 states, 3748 states have (on average 1.4450373532550693) internal successors, (5416), 3748 states have internal predecessors, (5416), 53 states have call successors, (53), 1 states have call predecessors, (53), 1 states have return successors, (53), 53 states have call predecessors, (53), 53 states have call successors, (53) [2024-12-02 10:21:07,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3803 states to 3803 states and 5522 transitions. [2024-12-02 10:21:07,333 INFO L78 Accepts]: Start accepts. Automaton has 3803 states and 5522 transitions. Word has length 796 [2024-12-02 10:21:07,333 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:21:07,333 INFO L471 AbstractCegarLoop]: Abstraction has 3803 states and 5522 transitions. [2024-12-02 10:21:07,333 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 145.8) internal successors, (729), 5 states have internal predecessors, (729), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-12-02 10:21:07,333 INFO L276 IsEmpty]: Start isEmpty. Operand 3803 states and 5522 transitions. [2024-12-02 10:21:07,339 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 798 [2024-12-02 10:21:07,339 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:21:07,339 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:21:07,339 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2024-12-02 10:21:07,339 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:21:07,339 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:21:07,340 INFO L85 PathProgramCache]: Analyzing trace with hash 746768782, now seen corresponding path program 1 times [2024-12-02 10:21:07,340 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:21:07,340 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1644461243] [2024-12-02 10:21:07,340 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:21:07,340 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:21:07,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:21:08,639 INFO L134 CoverageAnalysis]: Checked inductivity of 619 backedges. 255 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-12-02 10:21:08,639 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:21:08,639 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1644461243] [2024-12-02 10:21:08,640 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1644461243] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:21:08,640 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:21:08,640 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 10:21:08,640 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [101262023] [2024-12-02 10:21:08,640 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:21:08,641 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 10:21:08,641 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:21:08,642 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 10:21:08,642 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-12-02 10:21:08,642 INFO L87 Difference]: Start difference. First operand 3803 states and 5522 transitions. Second operand has 5 states, 5 states have (on average 146.0) internal successors, (730), 5 states have internal predecessors, (730), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-12-02 10:21:09,038 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:21:09,038 INFO L93 Difference]: Finished difference Result 5525 states and 8028 transitions. [2024-12-02 10:21:09,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 10:21:09,038 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 146.0) internal successors, (730), 5 states have internal predecessors, (730), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 797 [2024-12-02 10:21:09,039 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:21:09,042 INFO L225 Difference]: With dead ends: 5525 [2024-12-02 10:21:09,042 INFO L226 Difference]: Without dead ends: 3803 [2024-12-02 10:21:09,043 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-12-02 10:21:09,044 INFO L435 NwaCegarLoop]: 1019 mSDtfsCounter, 1867 mSDsluCounter, 1021 mSDsCounter, 0 mSdLazyCounter, 620 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1867 SdHoareTripleChecker+Valid, 2040 SdHoareTripleChecker+Invalid, 621 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 620 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-12-02 10:21:09,044 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1867 Valid, 2040 Invalid, 621 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 620 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-12-02 10:21:09,045 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3803 states. [2024-12-02 10:21:09,072 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3803 to 3803. [2024-12-02 10:21:09,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3803 states, 3748 states have (on average 1.444770544290288) internal successors, (5415), 3748 states have internal predecessors, (5415), 53 states have call successors, (53), 1 states have call predecessors, (53), 1 states have return successors, (53), 53 states have call predecessors, (53), 53 states have call successors, (53) [2024-12-02 10:21:09,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3803 states to 3803 states and 5521 transitions. [2024-12-02 10:21:09,078 INFO L78 Accepts]: Start accepts. Automaton has 3803 states and 5521 transitions. Word has length 797 [2024-12-02 10:21:09,078 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:21:09,078 INFO L471 AbstractCegarLoop]: Abstraction has 3803 states and 5521 transitions. [2024-12-02 10:21:09,078 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 146.0) internal successors, (730), 5 states have internal predecessors, (730), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-12-02 10:21:09,078 INFO L276 IsEmpty]: Start isEmpty. Operand 3803 states and 5521 transitions. [2024-12-02 10:21:09,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 799 [2024-12-02 10:21:09,084 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:21:09,084 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:21:09,084 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2024-12-02 10:21:09,084 INFO L396 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:21:09,085 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:21:09,085 INFO L85 PathProgramCache]: Analyzing trace with hash 35676169, now seen corresponding path program 1 times [2024-12-02 10:21:09,085 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:21:09,085 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2008005039] [2024-12-02 10:21:09,085 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:21:09,085 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:21:09,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:21:10,340 INFO L134 CoverageAnalysis]: Checked inductivity of 619 backedges. 202 proven. 0 refuted. 0 times theorem prover too weak. 417 trivial. 0 not checked. [2024-12-02 10:21:10,341 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:21:10,341 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2008005039] [2024-12-02 10:21:10,341 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2008005039] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:21:10,341 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:21:10,341 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 10:21:10,341 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1787224566] [2024-12-02 10:21:10,341 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:21:10,342 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 10:21:10,342 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:21:10,343 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 10:21:10,343 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-12-02 10:21:10,343 INFO L87 Difference]: Start difference. First operand 3803 states and 5521 transitions. Second operand has 6 states, 6 states have (on average 114.16666666666667) internal successors, (685), 6 states have internal predecessors, (685), 2 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-12-02 10:21:10,928 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:21:10,928 INFO L93 Difference]: Finished difference Result 6707 states and 9749 transitions. [2024-12-02 10:21:10,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 10:21:10,928 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 114.16666666666667) internal successors, (685), 6 states have internal predecessors, (685), 2 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 798 [2024-12-02 10:21:10,929 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:21:10,931 INFO L225 Difference]: With dead ends: 6707 [2024-12-02 10:21:10,931 INFO L226 Difference]: Without dead ends: 3827 [2024-12-02 10:21:10,933 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-12-02 10:21:10,934 INFO L435 NwaCegarLoop]: 1031 mSDtfsCounter, 891 mSDsluCounter, 3038 mSDsCounter, 0 mSdLazyCounter, 1227 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 891 SdHoareTripleChecker+Valid, 4069 SdHoareTripleChecker+Invalid, 1228 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1227 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-12-02 10:21:10,934 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [891 Valid, 4069 Invalid, 1228 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1227 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-12-02 10:21:10,935 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3827 states. [2024-12-02 10:21:10,963 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3827 to 3815. [2024-12-02 10:21:10,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3815 states, 3760 states have (on average 1.4433510638297873) internal successors, (5427), 3760 states have internal predecessors, (5427), 53 states have call successors, (53), 1 states have call predecessors, (53), 1 states have return successors, (53), 53 states have call predecessors, (53), 53 states have call successors, (53) [2024-12-02 10:21:10,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3815 states to 3815 states and 5533 transitions. [2024-12-02 10:21:10,969 INFO L78 Accepts]: Start accepts. Automaton has 3815 states and 5533 transitions. Word has length 798 [2024-12-02 10:21:10,969 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:21:10,969 INFO L471 AbstractCegarLoop]: Abstraction has 3815 states and 5533 transitions. [2024-12-02 10:21:10,969 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 114.16666666666667) internal successors, (685), 6 states have internal predecessors, (685), 2 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-12-02 10:21:10,969 INFO L276 IsEmpty]: Start isEmpty. Operand 3815 states and 5533 transitions. [2024-12-02 10:21:10,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 800 [2024-12-02 10:21:10,974 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:21:10,975 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:21:10,975 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2024-12-02 10:21:10,975 INFO L396 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:21:10,975 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:21:10,975 INFO L85 PathProgramCache]: Analyzing trace with hash 1397307342, now seen corresponding path program 1 times [2024-12-02 10:21:10,976 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:21:10,976 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [85745181] [2024-12-02 10:21:10,976 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:21:10,976 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:21:12,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:21:13,343 INFO L134 CoverageAnalysis]: Checked inductivity of 619 backedges. 255 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-12-02 10:21:13,344 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:21:13,344 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [85745181] [2024-12-02 10:21:13,344 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [85745181] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:21:13,344 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:21:13,344 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 10:21:13,344 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1077444583] [2024-12-02 10:21:13,344 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:21:13,344 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 10:21:13,344 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:21:13,345 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 10:21:13,345 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 10:21:13,345 INFO L87 Difference]: Start difference. First operand 3815 states and 5533 transitions. Second operand has 4 states, 4 states have (on average 183.0) internal successors, (732), 4 states have internal predecessors, (732), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-12-02 10:21:13,436 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:21:13,436 INFO L93 Difference]: Finished difference Result 5541 states and 8042 transitions. [2024-12-02 10:21:13,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 10:21:13,437 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 183.0) internal successors, (732), 4 states have internal predecessors, (732), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 799 [2024-12-02 10:21:13,437 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:21:13,440 INFO L225 Difference]: With dead ends: 5541 [2024-12-02 10:21:13,440 INFO L226 Difference]: Without dead ends: 3815 [2024-12-02 10:21:13,442 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-12-02 10:21:13,442 INFO L435 NwaCegarLoop]: 1282 mSDtfsCounter, 961 mSDsluCounter, 1284 mSDsCounter, 0 mSdLazyCounter, 92 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 961 SdHoareTripleChecker+Valid, 2566 SdHoareTripleChecker+Invalid, 92 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 92 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 10:21:13,442 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [961 Valid, 2566 Invalid, 92 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 92 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 10:21:13,444 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3815 states. [2024-12-02 10:21:13,474 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3815 to 3815. [2024-12-02 10:21:13,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3815 states, 3760 states have (on average 1.4430851063829788) internal successors, (5426), 3760 states have internal predecessors, (5426), 53 states have call successors, (53), 1 states have call predecessors, (53), 1 states have return successors, (53), 53 states have call predecessors, (53), 53 states have call successors, (53) [2024-12-02 10:21:13,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3815 states to 3815 states and 5532 transitions. [2024-12-02 10:21:13,479 INFO L78 Accepts]: Start accepts. Automaton has 3815 states and 5532 transitions. Word has length 799 [2024-12-02 10:21:13,480 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:21:13,480 INFO L471 AbstractCegarLoop]: Abstraction has 3815 states and 5532 transitions. [2024-12-02 10:21:13,480 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 183.0) internal successors, (732), 4 states have internal predecessors, (732), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-12-02 10:21:13,480 INFO L276 IsEmpty]: Start isEmpty. Operand 3815 states and 5532 transitions. [2024-12-02 10:21:13,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 801 [2024-12-02 10:21:13,485 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:21:13,485 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:21:13,485 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2024-12-02 10:21:13,485 INFO L396 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:21:13,485 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:21:13,486 INFO L85 PathProgramCache]: Analyzing trace with hash -86910257, now seen corresponding path program 1 times [2024-12-02 10:21:13,486 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:21:13,486 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [370211770] [2024-12-02 10:21:13,486 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:21:13,486 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:21:15,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:21:16,291 INFO L134 CoverageAnalysis]: Checked inductivity of 619 backedges. 255 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-12-02 10:21:16,291 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:21:16,291 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [370211770] [2024-12-02 10:21:16,291 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [370211770] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:21:16,291 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:21:16,292 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 10:21:16,292 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1171874286] [2024-12-02 10:21:16,292 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:21:16,293 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 10:21:16,293 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:21:16,293 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 10:21:16,294 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 10:21:16,294 INFO L87 Difference]: Start difference. First operand 3815 states and 5532 transitions. Second operand has 4 states, 4 states have (on average 183.25) internal successors, (733), 4 states have internal predecessors, (733), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-12-02 10:21:16,401 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:21:16,402 INFO L93 Difference]: Finished difference Result 5541 states and 8040 transitions. [2024-12-02 10:21:16,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 10:21:16,402 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 183.25) internal successors, (733), 4 states have internal predecessors, (733), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 800 [2024-12-02 10:21:16,402 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:21:16,405 INFO L225 Difference]: With dead ends: 5541 [2024-12-02 10:21:16,405 INFO L226 Difference]: Without dead ends: 3815 [2024-12-02 10:21:16,406 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-12-02 10:21:16,407 INFO L435 NwaCegarLoop]: 1282 mSDtfsCounter, 904 mSDsluCounter, 1284 mSDsCounter, 0 mSdLazyCounter, 90 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 904 SdHoareTripleChecker+Valid, 2566 SdHoareTripleChecker+Invalid, 90 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 90 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 10:21:16,407 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [904 Valid, 2566 Invalid, 90 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 90 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 10:21:16,408 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3815 states. [2024-12-02 10:21:16,436 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3815 to 3815. [2024-12-02 10:21:16,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3815 states, 3760 states have (on average 1.4428191489361701) internal successors, (5425), 3760 states have internal predecessors, (5425), 53 states have call successors, (53), 1 states have call predecessors, (53), 1 states have return successors, (53), 53 states have call predecessors, (53), 53 states have call successors, (53) [2024-12-02 10:21:16,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3815 states to 3815 states and 5531 transitions. [2024-12-02 10:21:16,442 INFO L78 Accepts]: Start accepts. Automaton has 3815 states and 5531 transitions. Word has length 800 [2024-12-02 10:21:16,442 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:21:16,442 INFO L471 AbstractCegarLoop]: Abstraction has 3815 states and 5531 transitions. [2024-12-02 10:21:16,442 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 183.25) internal successors, (733), 4 states have internal predecessors, (733), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-12-02 10:21:16,442 INFO L276 IsEmpty]: Start isEmpty. Operand 3815 states and 5531 transitions. [2024-12-02 10:21:16,447 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 802 [2024-12-02 10:21:16,447 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:21:16,448 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:21:16,448 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2024-12-02 10:21:16,448 INFO L396 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:21:16,448 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:21:16,449 INFO L85 PathProgramCache]: Analyzing trace with hash -1024271434, now seen corresponding path program 1 times [2024-12-02 10:21:16,449 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:21:16,449 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1369737452] [2024-12-02 10:21:16,449 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:21:16,449 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:21:20,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:21:20,967 INFO L134 CoverageAnalysis]: Checked inductivity of 619 backedges. 255 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-12-02 10:21:20,967 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:21:20,967 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1369737452] [2024-12-02 10:21:20,967 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1369737452] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:21:20,967 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:21:20,967 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 10:21:20,967 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1227053186] [2024-12-02 10:21:20,967 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:21:20,968 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 10:21:20,968 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:21:20,969 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 10:21:20,969 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-12-02 10:21:20,969 INFO L87 Difference]: Start difference. First operand 3815 states and 5531 transitions. Second operand has 6 states, 6 states have (on average 122.33333333333333) internal successors, (734), 6 states have internal predecessors, (734), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-12-02 10:21:21,583 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:21:21,583 INFO L93 Difference]: Finished difference Result 8026 states and 11632 transitions. [2024-12-02 10:21:21,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 10:21:21,584 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 122.33333333333333) internal successors, (734), 6 states have internal predecessors, (734), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 801 [2024-12-02 10:21:21,584 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:21:21,588 INFO L225 Difference]: With dead ends: 8026 [2024-12-02 10:21:21,588 INFO L226 Difference]: Without dead ends: 6300 [2024-12-02 10:21:21,591 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-12-02 10:21:21,591 INFO L435 NwaCegarLoop]: 2004 mSDtfsCounter, 1400 mSDsluCounter, 5158 mSDsCounter, 0 mSdLazyCounter, 948 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1402 SdHoareTripleChecker+Valid, 7162 SdHoareTripleChecker+Invalid, 955 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 948 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-12-02 10:21:21,591 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1402 Valid, 7162 Invalid, 955 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 948 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-12-02 10:21:21,594 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6300 states. [2024-12-02 10:21:21,639 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6300 to 6041. [2024-12-02 10:21:21,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6041 states, 5948 states have (on average 1.4404841963685273) internal successors, (8568), 5948 states have internal predecessors, (8568), 91 states have call successors, (91), 1 states have call predecessors, (91), 1 states have return successors, (91), 91 states have call predecessors, (91), 91 states have call successors, (91) [2024-12-02 10:21:21,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6041 states to 6041 states and 8750 transitions. [2024-12-02 10:21:21,648 INFO L78 Accepts]: Start accepts. Automaton has 6041 states and 8750 transitions. Word has length 801 [2024-12-02 10:21:21,648 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:21:21,648 INFO L471 AbstractCegarLoop]: Abstraction has 6041 states and 8750 transitions. [2024-12-02 10:21:21,649 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 122.33333333333333) internal successors, (734), 6 states have internal predecessors, (734), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-12-02 10:21:21,649 INFO L276 IsEmpty]: Start isEmpty. Operand 6041 states and 8750 transitions. [2024-12-02 10:21:21,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 803 [2024-12-02 10:21:21,655 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:21:21,656 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:21:21,656 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2024-12-02 10:21:21,656 INFO L396 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:21:21,656 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:21:21,656 INFO L85 PathProgramCache]: Analyzing trace with hash 2013189752, now seen corresponding path program 1 times [2024-12-02 10:21:21,656 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:21:21,657 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1850399141] [2024-12-02 10:21:21,657 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:21:21,657 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:21:24,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:21:26,266 INFO L134 CoverageAnalysis]: Checked inductivity of 619 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 598 trivial. 0 not checked. [2024-12-02 10:21:26,266 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:21:26,266 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1850399141] [2024-12-02 10:21:26,266 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1850399141] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:21:26,266 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:21:26,266 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-12-02 10:21:26,266 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1809505163] [2024-12-02 10:21:26,266 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:21:26,267 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 10:21:26,267 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:21:26,268 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 10:21:26,268 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-12-02 10:21:26,268 INFO L87 Difference]: Start difference. First operand 6041 states and 8750 transitions. Second operand has 7 states, 7 states have (on average 73.42857142857143) internal successors, (514), 7 states have internal predecessors, (514), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-12-02 10:21:26,980 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:21:26,981 INFO L93 Difference]: Finished difference Result 11537 states and 16703 transitions. [2024-12-02 10:21:26,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 10:21:26,981 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 73.42857142857143) internal successors, (514), 7 states have internal predecessors, (514), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 802 [2024-12-02 10:21:26,981 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:21:26,985 INFO L225 Difference]: With dead ends: 11537 [2024-12-02 10:21:26,985 INFO L226 Difference]: Without dead ends: 6077 [2024-12-02 10:21:26,989 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2024-12-02 10:21:26,990 INFO L435 NwaCegarLoop]: 1011 mSDtfsCounter, 2508 mSDsluCounter, 3018 mSDsCounter, 0 mSdLazyCounter, 1270 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2514 SdHoareTripleChecker+Valid, 4029 SdHoareTripleChecker+Invalid, 1278 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 1270 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-12-02 10:21:26,990 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2514 Valid, 4029 Invalid, 1278 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 1270 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-12-02 10:21:26,993 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6077 states. [2024-12-02 10:21:27,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6077 to 6059. [2024-12-02 10:21:27,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6059 states, 5966 states have (on average 1.43764666443178) internal successors, (8577), 5966 states have internal predecessors, (8577), 91 states have call successors, (91), 1 states have call predecessors, (91), 1 states have return successors, (91), 91 states have call predecessors, (91), 91 states have call successors, (91) [2024-12-02 10:21:27,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6059 states to 6059 states and 8759 transitions. [2024-12-02 10:21:27,049 INFO L78 Accepts]: Start accepts. Automaton has 6059 states and 8759 transitions. Word has length 802 [2024-12-02 10:21:27,049 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:21:27,049 INFO L471 AbstractCegarLoop]: Abstraction has 6059 states and 8759 transitions. [2024-12-02 10:21:27,049 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 73.42857142857143) internal successors, (514), 7 states have internal predecessors, (514), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-12-02 10:21:27,049 INFO L276 IsEmpty]: Start isEmpty. Operand 6059 states and 8759 transitions. [2024-12-02 10:21:27,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 805 [2024-12-02 10:21:27,056 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:21:27,057 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:21:27,057 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2024-12-02 10:21:27,057 INFO L396 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:21:27,057 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:21:27,057 INFO L85 PathProgramCache]: Analyzing trace with hash 1918927422, now seen corresponding path program 1 times [2024-12-02 10:21:27,057 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:21:27,057 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1639963465] [2024-12-02 10:21:27,058 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:21:27,058 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:21:30,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:21:32,440 INFO L134 CoverageAnalysis]: Checked inductivity of 620 backedges. 78 proven. 0 refuted. 0 times theorem prover too weak. 542 trivial. 0 not checked. [2024-12-02 10:21:32,441 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:21:32,441 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1639963465] [2024-12-02 10:21:32,441 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1639963465] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:21:32,441 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:21:32,441 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-12-02 10:21:32,441 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1862009646] [2024-12-02 10:21:32,441 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:21:32,442 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-12-02 10:21:32,442 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:21:32,443 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-12-02 10:21:32,443 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2024-12-02 10:21:32,443 INFO L87 Difference]: Start difference. First operand 6059 states and 8759 transitions. Second operand has 8 states, 8 states have (on average 70.25) internal successors, (562), 8 states have internal predecessors, (562), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-12-02 10:21:34,053 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:21:34,054 INFO L93 Difference]: Finished difference Result 13389 states and 19366 transitions. [2024-12-02 10:21:34,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-02 10:21:34,054 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 70.25) internal successors, (562), 8 states have internal predecessors, (562), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 804 [2024-12-02 10:21:34,054 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:21:34,061 INFO L225 Difference]: With dead ends: 13389 [2024-12-02 10:21:34,061 INFO L226 Difference]: Without dead ends: 10569 [2024-12-02 10:21:34,065 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2024-12-02 10:21:34,065 INFO L435 NwaCegarLoop]: 1760 mSDtfsCounter, 4264 mSDsluCounter, 6165 mSDsCounter, 0 mSdLazyCounter, 2301 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4278 SdHoareTripleChecker+Valid, 7925 SdHoareTripleChecker+Invalid, 2302 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 2301 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-12-02 10:21:34,065 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4278 Valid, 7925 Invalid, 2302 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 2301 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-12-02 10:21:34,069 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10569 states. [2024-12-02 10:21:34,147 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10569 to 6981. [2024-12-02 10:21:34,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6981 states, 6850 states have (on average 1.4327007299270074) internal successors, (9814), 6850 states have internal predecessors, (9814), 129 states have call successors, (129), 1 states have call predecessors, (129), 1 states have return successors, (129), 129 states have call predecessors, (129), 129 states have call successors, (129) [2024-12-02 10:21:34,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6981 states to 6981 states and 10072 transitions. [2024-12-02 10:21:34,160 INFO L78 Accepts]: Start accepts. Automaton has 6981 states and 10072 transitions. Word has length 804 [2024-12-02 10:21:34,160 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:21:34,160 INFO L471 AbstractCegarLoop]: Abstraction has 6981 states and 10072 transitions. [2024-12-02 10:21:34,160 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 70.25) internal successors, (562), 8 states have internal predecessors, (562), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-12-02 10:21:34,161 INFO L276 IsEmpty]: Start isEmpty. Operand 6981 states and 10072 transitions. [2024-12-02 10:21:34,167 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 805 [2024-12-02 10:21:34,168 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:21:34,168 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:21:34,168 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2024-12-02 10:21:34,169 INFO L396 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:21:34,169 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:21:34,169 INFO L85 PathProgramCache]: Analyzing trace with hash 162303142, now seen corresponding path program 1 times [2024-12-02 10:21:34,169 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:21:34,170 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [886947808] [2024-12-02 10:21:34,170 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:21:34,170 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:21:39,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:21:40,418 INFO L134 CoverageAnalysis]: Checked inductivity of 620 backedges. 192 proven. 1 refuted. 0 times theorem prover too weak. 427 trivial. 0 not checked. [2024-12-02 10:21:40,418 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:21:40,418 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [886947808] [2024-12-02 10:21:40,418 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [886947808] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 10:21:40,418 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1582867697] [2024-12-02 10:21:40,418 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:21:40,418 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 10:21:40,418 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a70003ac-7918-4afc-bf60-f5b65c90ed47/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 10:21:40,420 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a70003ac-7918-4afc-bf60-f5b65c90ed47/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 10:21:40,420 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a70003ac-7918-4afc-bf60-f5b65c90ed47/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-12-02 10:21:42,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:21:42,043 INFO L256 TraceCheckSpWp]: Trace formula consists of 4331 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-12-02 10:21:42,058 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:21:42,761 INFO L134 CoverageAnalysis]: Checked inductivity of 620 backedges. 288 proven. 3 refuted. 0 times theorem prover too weak. 329 trivial. 0 not checked. [2024-12-02 10:21:42,761 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 10:21:43,719 INFO L134 CoverageAnalysis]: Checked inductivity of 620 backedges. 228 proven. 1 refuted. 0 times theorem prover too weak. 391 trivial. 0 not checked. [2024-12-02 10:21:43,719 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1582867697] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 10:21:43,719 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 10:21:43,719 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 5, 5] total 9 [2024-12-02 10:21:43,719 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [837996328] [2024-12-02 10:21:43,720 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 10:21:43,721 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-12-02 10:21:43,721 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:21:43,722 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-12-02 10:21:43,723 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-12-02 10:21:43,723 INFO L87 Difference]: Start difference. First operand 6981 states and 10072 transitions. Second operand has 9 states, 9 states have (on average 134.11111111111111) internal successors, (1207), 9 states have internal predecessors, (1207), 4 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 4 states have call predecessors, (20), 4 states have call successors, (20) [2024-12-02 10:21:43,853 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:21:43,853 INFO L93 Difference]: Finished difference Result 11321 states and 16386 transitions. [2024-12-02 10:21:43,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 10:21:43,853 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 134.11111111111111) internal successors, (1207), 9 states have internal predecessors, (1207), 4 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 4 states have call predecessors, (20), 4 states have call successors, (20) Word has length 804 [2024-12-02 10:21:43,854 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:21:43,858 INFO L225 Difference]: With dead ends: 11321 [2024-12-02 10:21:43,858 INFO L226 Difference]: Without dead ends: 6953 [2024-12-02 10:21:43,862 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 1612 GetRequests, 1604 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2024-12-02 10:21:43,862 INFO L435 NwaCegarLoop]: 1300 mSDtfsCounter, 1650 mSDsluCounter, 2589 mSDsCounter, 0 mSdLazyCounter, 71 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1650 SdHoareTripleChecker+Valid, 3889 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 71 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 10:21:43,862 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1650 Valid, 3889 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 71 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 10:21:43,865 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6953 states. [2024-12-02 10:21:43,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6953 to 6953. [2024-12-02 10:21:43,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6953 states, 6822 states have (on average 1.4324245089416594) internal successors, (9772), 6822 states have internal predecessors, (9772), 129 states have call successors, (129), 1 states have call predecessors, (129), 1 states have return successors, (129), 129 states have call predecessors, (129), 129 states have call successors, (129) [2024-12-02 10:21:43,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6953 states to 6953 states and 10030 transitions. [2024-12-02 10:21:43,953 INFO L78 Accepts]: Start accepts. Automaton has 6953 states and 10030 transitions. Word has length 804 [2024-12-02 10:21:43,953 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:21:43,953 INFO L471 AbstractCegarLoop]: Abstraction has 6953 states and 10030 transitions. [2024-12-02 10:21:43,954 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 134.11111111111111) internal successors, (1207), 9 states have internal predecessors, (1207), 4 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 4 states have call predecessors, (20), 4 states have call successors, (20) [2024-12-02 10:21:43,954 INFO L276 IsEmpty]: Start isEmpty. Operand 6953 states and 10030 transitions. [2024-12-02 10:21:43,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 805 [2024-12-02 10:21:43,965 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:21:43,965 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:21:43,983 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a70003ac-7918-4afc-bf60-f5b65c90ed47/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-12-02 10:21:44,166 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a70003ac-7918-4afc-bf60-f5b65c90ed47/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 10:21:44,166 INFO L396 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:21:44,167 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:21:44,167 INFO L85 PathProgramCache]: Analyzing trace with hash 967654282, now seen corresponding path program 1 times [2024-12-02 10:21:44,167 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:21:44,167 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1498667570] [2024-12-02 10:21:44,167 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:21:44,167 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:21:48,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:21:49,737 INFO L134 CoverageAnalysis]: Checked inductivity of 620 backedges. 256 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-12-02 10:21:49,737 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:21:49,737 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1498667570] [2024-12-02 10:21:49,737 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1498667570] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:21:49,737 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:21:49,737 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 10:21:49,737 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1013094600] [2024-12-02 10:21:49,737 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:21:49,738 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 10:21:49,738 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:21:49,738 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 10:21:49,739 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-12-02 10:21:49,739 INFO L87 Difference]: Start difference. First operand 6953 states and 10030 transitions. Second operand has 6 states, 6 states have (on average 122.83333333333333) internal successors, (737), 6 states have internal predecessors, (737), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-12-02 10:21:50,526 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:21:50,526 INFO L93 Difference]: Finished difference Result 8704 states and 12572 transitions. [2024-12-02 10:21:50,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 10:21:50,526 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 122.83333333333333) internal successors, (737), 6 states have internal predecessors, (737), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 804 [2024-12-02 10:21:50,527 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:21:50,531 INFO L225 Difference]: With dead ends: 8704 [2024-12-02 10:21:50,531 INFO L226 Difference]: Without dead ends: 6980 [2024-12-02 10:21:50,532 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-12-02 10:21:50,533 INFO L435 NwaCegarLoop]: 1107 mSDtfsCounter, 2537 mSDsluCounter, 3189 mSDsCounter, 0 mSdLazyCounter, 1296 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2544 SdHoareTripleChecker+Valid, 4296 SdHoareTripleChecker+Invalid, 1296 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1296 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-12-02 10:21:50,533 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2544 Valid, 4296 Invalid, 1296 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1296 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-12-02 10:21:50,535 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6980 states. [2024-12-02 10:21:50,612 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6980 to 6954. [2024-12-02 10:21:50,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6954 states, 6823 states have (on average 1.4323611314670965) internal successors, (9773), 6823 states have internal predecessors, (9773), 129 states have call successors, (129), 1 states have call predecessors, (129), 1 states have return successors, (129), 129 states have call predecessors, (129), 129 states have call successors, (129) [2024-12-02 10:21:50,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6954 states to 6954 states and 10031 transitions. [2024-12-02 10:21:50,628 INFO L78 Accepts]: Start accepts. Automaton has 6954 states and 10031 transitions. Word has length 804 [2024-12-02 10:21:50,629 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:21:50,629 INFO L471 AbstractCegarLoop]: Abstraction has 6954 states and 10031 transitions. [2024-12-02 10:21:50,629 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 122.83333333333333) internal successors, (737), 6 states have internal predecessors, (737), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-12-02 10:21:50,629 INFO L276 IsEmpty]: Start isEmpty. Operand 6954 states and 10031 transitions. [2024-12-02 10:21:50,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 806 [2024-12-02 10:21:50,641 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:21:50,641 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:21:50,642 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2024-12-02 10:21:50,642 INFO L396 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:21:50,642 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:21:50,642 INFO L85 PathProgramCache]: Analyzing trace with hash 838447735, now seen corresponding path program 1 times [2024-12-02 10:21:50,642 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:21:50,642 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [201733149] [2024-12-02 10:21:50,643 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:21:50,643 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:21:54,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:21:57,399 INFO L134 CoverageAnalysis]: Checked inductivity of 620 backedges. 58 proven. 0 refuted. 0 times theorem prover too weak. 562 trivial. 0 not checked. [2024-12-02 10:21:57,399 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:21:57,399 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [201733149] [2024-12-02 10:21:57,400 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [201733149] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:21:57,400 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:21:57,400 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-12-02 10:21:57,400 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1912687549] [2024-12-02 10:21:57,400 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:21:57,400 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 10:21:57,400 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:21:57,401 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 10:21:57,401 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-12-02 10:21:57,401 INFO L87 Difference]: Start difference. First operand 6954 states and 10031 transitions. Second operand has 7 states, 7 states have (on average 78.57142857142857) internal successors, (550), 7 states have internal predecessors, (550), 2 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-12-02 10:21:58,186 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:21:58,186 INFO L93 Difference]: Finished difference Result 11709 states and 16938 transitions. [2024-12-02 10:21:58,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 10:21:58,186 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 78.57142857142857) internal successors, (550), 7 states have internal predecessors, (550), 2 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 805 [2024-12-02 10:21:58,187 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:21:58,191 INFO L225 Difference]: With dead ends: 11709 [2024-12-02 10:21:58,191 INFO L226 Difference]: Without dead ends: 7062 [2024-12-02 10:21:58,195 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2024-12-02 10:21:58,195 INFO L435 NwaCegarLoop]: 1009 mSDtfsCounter, 2436 mSDsluCounter, 3012 mSDsCounter, 0 mSdLazyCounter, 1270 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2439 SdHoareTripleChecker+Valid, 4021 SdHoareTripleChecker+Invalid, 1275 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 1270 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-12-02 10:21:58,195 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2439 Valid, 4021 Invalid, 1275 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 1270 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-12-02 10:21:58,198 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7062 states. [2024-12-02 10:21:58,262 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7062 to 7008. [2024-12-02 10:21:58,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7008 states, 6877 states have (on average 1.4250399883670204) internal successors, (9800), 6877 states have internal predecessors, (9800), 129 states have call successors, (129), 1 states have call predecessors, (129), 1 states have return successors, (129), 129 states have call predecessors, (129), 129 states have call successors, (129) [2024-12-02 10:21:58,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7008 states to 7008 states and 10058 transitions. [2024-12-02 10:21:58,273 INFO L78 Accepts]: Start accepts. Automaton has 7008 states and 10058 transitions. Word has length 805 [2024-12-02 10:21:58,274 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:21:58,274 INFO L471 AbstractCegarLoop]: Abstraction has 7008 states and 10058 transitions. [2024-12-02 10:21:58,274 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 78.57142857142857) internal successors, (550), 7 states have internal predecessors, (550), 2 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-12-02 10:21:58,274 INFO L276 IsEmpty]: Start isEmpty. Operand 7008 states and 10058 transitions. [2024-12-02 10:21:58,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 808 [2024-12-02 10:21:58,310 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:21:58,311 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:21:58,311 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2024-12-02 10:21:58,311 INFO L396 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:21:58,312 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:21:58,313 INFO L85 PathProgramCache]: Analyzing trace with hash 1451411879, now seen corresponding path program 1 times [2024-12-02 10:21:58,313 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:21:58,313 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1692116119] [2024-12-02 10:21:58,313 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:21:58,313 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:22:02,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:22:04,907 INFO L134 CoverageAnalysis]: Checked inductivity of 621 backedges. 71 proven. 0 refuted. 0 times theorem prover too weak. 550 trivial. 0 not checked. [2024-12-02 10:22:04,907 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:22:04,907 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1692116119] [2024-12-02 10:22:04,907 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1692116119] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:22:04,907 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:22:04,907 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-12-02 10:22:04,907 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1063454845] [2024-12-02 10:22:04,907 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:22:04,908 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-12-02 10:22:04,908 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:22:04,908 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-12-02 10:22:04,908 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-12-02 10:22:04,908 INFO L87 Difference]: Start difference. First operand 7008 states and 10058 transitions. Second operand has 8 states, 8 states have (on average 70.0) internal successors, (560), 8 states have internal predecessors, (560), 3 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2024-12-02 10:22:05,189 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:22:05,189 INFO L93 Difference]: Finished difference Result 17160 states and 24782 transitions. [2024-12-02 10:22:05,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-02 10:22:05,190 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 70.0) internal successors, (560), 8 states have internal predecessors, (560), 3 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) Word has length 807 [2024-12-02 10:22:05,190 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:22:05,202 INFO L225 Difference]: With dead ends: 17160 [2024-12-02 10:22:05,202 INFO L226 Difference]: Without dead ends: 12939 [2024-12-02 10:22:05,208 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2024-12-02 10:22:05,208 INFO L435 NwaCegarLoop]: 1326 mSDtfsCounter, 6077 mSDsluCounter, 6069 mSDsCounter, 0 mSdLazyCounter, 200 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6089 SdHoareTripleChecker+Valid, 7395 SdHoareTripleChecker+Invalid, 206 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 200 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 10:22:05,209 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [6089 Valid, 7395 Invalid, 206 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 200 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 10:22:05,214 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12939 states. [2024-12-02 10:22:05,332 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12939 to 7401. [2024-12-02 10:22:05,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7401 states, 7240 states have (on average 1.419889502762431) internal successors, (10280), 7240 states have internal predecessors, (10280), 159 states have call successors, (159), 1 states have call predecessors, (159), 1 states have return successors, (159), 159 states have call predecessors, (159), 159 states have call successors, (159) [2024-12-02 10:22:05,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7401 states to 7401 states and 10598 transitions. [2024-12-02 10:22:05,345 INFO L78 Accepts]: Start accepts. Automaton has 7401 states and 10598 transitions. Word has length 807 [2024-12-02 10:22:05,345 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:22:05,345 INFO L471 AbstractCegarLoop]: Abstraction has 7401 states and 10598 transitions. [2024-12-02 10:22:05,345 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 70.0) internal successors, (560), 8 states have internal predecessors, (560), 3 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2024-12-02 10:22:05,345 INFO L276 IsEmpty]: Start isEmpty. Operand 7401 states and 10598 transitions. [2024-12-02 10:22:05,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 808 [2024-12-02 10:22:05,353 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:22:05,354 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:22:05,354 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2024-12-02 10:22:05,354 INFO L396 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:22:05,354 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:22:05,355 INFO L85 PathProgramCache]: Analyzing trace with hash -648362702, now seen corresponding path program 1 times [2024-12-02 10:22:05,355 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:22:05,355 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1443500445] [2024-12-02 10:22:05,355 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:22:05,355 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:22:05,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:22:06,841 INFO L134 CoverageAnalysis]: Checked inductivity of 620 backedges. 45 proven. 0 refuted. 0 times theorem prover too weak. 575 trivial. 0 not checked. [2024-12-02 10:22:06,841 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:22:06,841 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1443500445] [2024-12-02 10:22:06,841 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1443500445] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:22:06,841 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:22:06,841 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 10:22:06,841 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2028942406] [2024-12-02 10:22:06,841 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:22:06,842 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 10:22:06,842 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:22:06,842 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 10:22:06,842 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-12-02 10:22:06,842 INFO L87 Difference]: Start difference. First operand 7401 states and 10598 transitions. Second operand has 5 states, 5 states have (on average 108.2) internal successors, (541), 5 states have internal predecessors, (541), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-12-02 10:22:07,417 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:22:07,417 INFO L93 Difference]: Finished difference Result 12636 states and 18171 transitions. [2024-12-02 10:22:07,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 10:22:07,418 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 108.2) internal successors, (541), 5 states have internal predecessors, (541), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 807 [2024-12-02 10:22:07,418 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:22:07,423 INFO L225 Difference]: With dead ends: 12636 [2024-12-02 10:22:07,423 INFO L226 Difference]: Without dead ends: 7455 [2024-12-02 10:22:07,427 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-12-02 10:22:07,428 INFO L435 NwaCegarLoop]: 1027 mSDtfsCounter, 1240 mSDsluCounter, 2024 mSDsCounter, 0 mSdLazyCounter, 922 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1244 SdHoareTripleChecker+Valid, 3051 SdHoareTripleChecker+Invalid, 924 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 922 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-12-02 10:22:07,428 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1244 Valid, 3051 Invalid, 924 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 922 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-12-02 10:22:07,431 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7455 states. [2024-12-02 10:22:07,507 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7455 to 7455. [2024-12-02 10:22:07,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7455 states, 7294 states have (on average 1.416780915821223) internal successors, (10334), 7294 states have internal predecessors, (10334), 159 states have call successors, (159), 1 states have call predecessors, (159), 1 states have return successors, (159), 159 states have call predecessors, (159), 159 states have call successors, (159) [2024-12-02 10:22:07,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7455 states to 7455 states and 10652 transitions. [2024-12-02 10:22:07,520 INFO L78 Accepts]: Start accepts. Automaton has 7455 states and 10652 transitions. Word has length 807 [2024-12-02 10:22:07,520 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:22:07,520 INFO L471 AbstractCegarLoop]: Abstraction has 7455 states and 10652 transitions. [2024-12-02 10:22:07,521 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 108.2) internal successors, (541), 5 states have internal predecessors, (541), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-12-02 10:22:07,521 INFO L276 IsEmpty]: Start isEmpty. Operand 7455 states and 10652 transitions. [2024-12-02 10:22:07,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 808 [2024-12-02 10:22:07,529 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:22:07,529 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:22:07,529 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2024-12-02 10:22:07,530 INFO L396 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:22:07,530 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:22:07,530 INFO L85 PathProgramCache]: Analyzing trace with hash -1945072838, now seen corresponding path program 1 times [2024-12-02 10:22:07,530 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:22:07,530 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [571427872] [2024-12-02 10:22:07,530 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:22:07,531 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:22:11,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:22:13,118 INFO L134 CoverageAnalysis]: Checked inductivity of 621 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 610 trivial. 0 not checked. [2024-12-02 10:22:13,118 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:22:13,118 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [571427872] [2024-12-02 10:22:13,118 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [571427872] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:22:13,118 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:22:13,119 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 10:22:13,119 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [613433636] [2024-12-02 10:22:13,119 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:22:13,119 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 10:22:13,120 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:22:13,120 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 10:22:13,120 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-12-02 10:22:13,121 INFO L87 Difference]: Start difference. First operand 7455 states and 10652 transitions. Second operand has 6 states, 6 states have (on average 84.5) internal successors, (507), 6 states have internal predecessors, (507), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2024-12-02 10:22:13,869 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:22:13,869 INFO L93 Difference]: Finished difference Result 14273 states and 20379 transitions. [2024-12-02 10:22:13,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 10:22:13,869 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 84.5) internal successors, (507), 6 states have internal predecessors, (507), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 807 [2024-12-02 10:22:13,870 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:22:13,875 INFO L225 Difference]: With dead ends: 14273 [2024-12-02 10:22:13,875 INFO L226 Difference]: Without dead ends: 7481 [2024-12-02 10:22:13,880 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-12-02 10:22:13,880 INFO L435 NwaCegarLoop]: 1009 mSDtfsCounter, 1243 mSDsluCounter, 3012 mSDsCounter, 0 mSdLazyCounter, 1270 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1250 SdHoareTripleChecker+Valid, 4021 SdHoareTripleChecker+Invalid, 1270 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1270 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-12-02 10:22:13,880 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1250 Valid, 4021 Invalid, 1270 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1270 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-12-02 10:22:13,884 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7481 states. [2024-12-02 10:22:13,959 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7481 to 7468. [2024-12-02 10:22:13,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7468 states, 7307 states have (on average 1.4160394142602983) internal successors, (10347), 7307 states have internal predecessors, (10347), 159 states have call successors, (159), 1 states have call predecessors, (159), 1 states have return successors, (159), 159 states have call predecessors, (159), 159 states have call successors, (159) [2024-12-02 10:22:13,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7468 states to 7468 states and 10665 transitions. [2024-12-02 10:22:13,972 INFO L78 Accepts]: Start accepts. Automaton has 7468 states and 10665 transitions. Word has length 807 [2024-12-02 10:22:13,973 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:22:13,973 INFO L471 AbstractCegarLoop]: Abstraction has 7468 states and 10665 transitions. [2024-12-02 10:22:13,973 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 84.5) internal successors, (507), 6 states have internal predecessors, (507), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2024-12-02 10:22:13,973 INFO L276 IsEmpty]: Start isEmpty. Operand 7468 states and 10665 transitions. [2024-12-02 10:22:13,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 810 [2024-12-02 10:22:13,981 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:22:13,982 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:22:13,982 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2024-12-02 10:22:13,982 INFO L396 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:22:13,982 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:22:13,983 INFO L85 PathProgramCache]: Analyzing trace with hash 433589322, now seen corresponding path program 1 times [2024-12-02 10:22:13,983 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:22:13,983 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [701279427] [2024-12-02 10:22:13,983 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:22:13,983 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:22:18,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:22:20,048 INFO L134 CoverageAnalysis]: Checked inductivity of 622 backedges. 76 proven. 0 refuted. 0 times theorem prover too weak. 546 trivial. 0 not checked. [2024-12-02 10:22:20,048 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:22:20,048 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [701279427] [2024-12-02 10:22:20,048 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [701279427] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:22:20,048 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:22:20,048 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-12-02 10:22:20,048 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [831369140] [2024-12-02 10:22:20,048 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:22:20,049 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-12-02 10:22:20,049 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:22:20,050 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-12-02 10:22:20,050 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2024-12-02 10:22:20,050 INFO L87 Difference]: Start difference. First operand 7468 states and 10665 transitions. Second operand has 10 states, 10 states have (on average 56.5) internal successors, (565), 10 states have internal predecessors, (565), 3 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2024-12-02 10:22:21,667 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:22:21,667 INFO L93 Difference]: Finished difference Result 16249 states and 23399 transitions. [2024-12-02 10:22:21,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-12-02 10:22:21,667 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 56.5) internal successors, (565), 10 states have internal predecessors, (565), 3 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) Word has length 809 [2024-12-02 10:22:21,667 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:22:21,675 INFO L225 Difference]: With dead ends: 16249 [2024-12-02 10:22:21,675 INFO L226 Difference]: Without dead ends: 12003 [2024-12-02 10:22:21,680 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=49, Invalid=161, Unknown=0, NotChecked=0, Total=210 [2024-12-02 10:22:21,680 INFO L435 NwaCegarLoop]: 1138 mSDtfsCounter, 3002 mSDsluCounter, 7685 mSDsCounter, 0 mSdLazyCounter, 3184 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3007 SdHoareTripleChecker+Valid, 8823 SdHoareTripleChecker+Invalid, 3187 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 3184 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-12-02 10:22:21,680 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3007 Valid, 8823 Invalid, 3187 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 3184 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-12-02 10:22:21,686 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12003 states. [2024-12-02 10:22:21,783 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12003 to 7991. [2024-12-02 10:22:21,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7991 states, 7792 states have (on average 1.4108059548254621) internal successors, (10993), 7792 states have internal predecessors, (10993), 197 states have call successors, (197), 1 states have call predecessors, (197), 1 states have return successors, (197), 197 states have call predecessors, (197), 197 states have call successors, (197) [2024-12-02 10:22:21,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7991 states to 7991 states and 11387 transitions. [2024-12-02 10:22:21,797 INFO L78 Accepts]: Start accepts. Automaton has 7991 states and 11387 transitions. Word has length 809 [2024-12-02 10:22:21,798 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:22:21,798 INFO L471 AbstractCegarLoop]: Abstraction has 7991 states and 11387 transitions. [2024-12-02 10:22:21,798 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 56.5) internal successors, (565), 10 states have internal predecessors, (565), 3 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2024-12-02 10:22:21,798 INFO L276 IsEmpty]: Start isEmpty. Operand 7991 states and 11387 transitions. [2024-12-02 10:22:21,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 812 [2024-12-02 10:22:21,807 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:22:21,807 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:22:21,807 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2024-12-02 10:22:21,807 INFO L396 AbstractCegarLoop]: === Iteration 50 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:22:21,808 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:22:21,808 INFO L85 PathProgramCache]: Analyzing trace with hash 604215594, now seen corresponding path program 1 times [2024-12-02 10:22:21,808 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:22:21,808 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1055323404] [2024-12-02 10:22:21,808 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:22:21,808 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:22:25,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:22:28,008 INFO L134 CoverageAnalysis]: Checked inductivity of 622 backedges. 258 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-12-02 10:22:28,008 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:22:28,008 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1055323404] [2024-12-02 10:22:28,008 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1055323404] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:22:28,008 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:22:28,008 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-12-02 10:22:28,008 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [534126589] [2024-12-02 10:22:28,008 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:22:28,008 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 10:22:28,008 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:22:28,009 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 10:22:28,009 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-12-02 10:22:28,009 INFO L87 Difference]: Start difference. First operand 7991 states and 11387 transitions. Second operand has 7 states, 7 states have (on average 106.28571428571429) internal successors, (744), 7 states have internal predecessors, (744), 3 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2024-12-02 10:22:29,245 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:22:29,245 INFO L93 Difference]: Finished difference Result 11690 states and 16725 transitions. [2024-12-02 10:22:29,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 10:22:29,245 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 106.28571428571429) internal successors, (744), 7 states have internal predecessors, (744), 3 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 811 [2024-12-02 10:22:29,246 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:22:29,254 INFO L225 Difference]: With dead ends: 11690 [2024-12-02 10:22:29,254 INFO L226 Difference]: Without dead ends: 9835 [2024-12-02 10:22:29,258 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2024-12-02 10:22:29,258 INFO L435 NwaCegarLoop]: 1865 mSDtfsCounter, 1943 mSDsluCounter, 6514 mSDsCounter, 0 mSdLazyCounter, 2532 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1948 SdHoareTripleChecker+Valid, 8379 SdHoareTripleChecker+Invalid, 2532 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2532 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-12-02 10:22:29,259 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1948 Valid, 8379 Invalid, 2532 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2532 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-12-02 10:22:29,264 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9835 states. [2024-12-02 10:22:29,395 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9835 to 8060. [2024-12-02 10:22:29,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8060 states, 7859 states have (on average 1.4106120371548543) internal successors, (11086), 7859 states have internal predecessors, (11086), 199 states have call successors, (199), 1 states have call predecessors, (199), 1 states have return successors, (199), 199 states have call predecessors, (199), 199 states have call successors, (199) [2024-12-02 10:22:29,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8060 states to 8060 states and 11484 transitions. [2024-12-02 10:22:29,407 INFO L78 Accepts]: Start accepts. Automaton has 8060 states and 11484 transitions. Word has length 811 [2024-12-02 10:22:29,408 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:22:29,408 INFO L471 AbstractCegarLoop]: Abstraction has 8060 states and 11484 transitions. [2024-12-02 10:22:29,408 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 106.28571428571429) internal successors, (744), 7 states have internal predecessors, (744), 3 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2024-12-02 10:22:29,408 INFO L276 IsEmpty]: Start isEmpty. Operand 8060 states and 11484 transitions. [2024-12-02 10:22:29,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 813 [2024-12-02 10:22:29,417 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:22:29,417 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:22:29,417 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2024-12-02 10:22:29,417 INFO L396 AbstractCegarLoop]: === Iteration 51 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:22:29,418 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:22:29,418 INFO L85 PathProgramCache]: Analyzing trace with hash 1142802039, now seen corresponding path program 1 times [2024-12-02 10:22:29,418 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:22:29,418 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [689281966] [2024-12-02 10:22:29,418 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:22:29,418 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:22:34,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:22:36,646 INFO L134 CoverageAnalysis]: Checked inductivity of 622 backedges. 211 proven. 1 refuted. 0 times theorem prover too weak. 410 trivial. 0 not checked. [2024-12-02 10:22:36,646 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:22:36,646 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [689281966] [2024-12-02 10:22:36,646 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [689281966] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 10:22:36,646 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1171343787] [2024-12-02 10:22:36,646 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:22:36,646 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 10:22:36,646 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a70003ac-7918-4afc-bf60-f5b65c90ed47/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 10:22:36,648 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a70003ac-7918-4afc-bf60-f5b65c90ed47/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 10:22:36,649 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a70003ac-7918-4afc-bf60-f5b65c90ed47/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-12-02 10:22:38,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:22:38,585 INFO L256 TraceCheckSpWp]: Trace formula consists of 4345 conjuncts, 39 conjuncts are in the unsatisfiable core [2024-12-02 10:22:38,599 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:22:39,028 INFO L134 CoverageAnalysis]: Checked inductivity of 622 backedges. 268 proven. 0 refuted. 0 times theorem prover too weak. 354 trivial. 0 not checked. [2024-12-02 10:22:39,028 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 10:22:39,028 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1171343787] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:22:39,028 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 10:22:39,028 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [7] total 14 [2024-12-02 10:22:39,028 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2075874984] [2024-12-02 10:22:39,028 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:22:39,029 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-12-02 10:22:39,029 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:22:39,029 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-12-02 10:22:39,029 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=141, Unknown=0, NotChecked=0, Total=182 [2024-12-02 10:22:39,029 INFO L87 Difference]: Start difference. First operand 8060 states and 11484 transitions. Second operand has 9 states, 9 states have (on average 63.44444444444444) internal successors, (571), 9 states have internal predecessors, (571), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-12-02 10:22:40,044 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:22:40,045 INFO L93 Difference]: Finished difference Result 12497 states and 17902 transitions. [2024-12-02 10:22:40,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-02 10:22:40,045 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 63.44444444444444) internal successors, (571), 9 states have internal predecessors, (571), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 812 [2024-12-02 10:22:40,045 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:22:40,051 INFO L225 Difference]: With dead ends: 12497 [2024-12-02 10:22:40,051 INFO L226 Difference]: Without dead ends: 8106 [2024-12-02 10:22:40,055 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 819 GetRequests, 807 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=141, Unknown=0, NotChecked=0, Total=182 [2024-12-02 10:22:40,056 INFO L435 NwaCegarLoop]: 1003 mSDtfsCounter, 1181 mSDsluCounter, 5933 mSDsCounter, 0 mSdLazyCounter, 2263 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1182 SdHoareTripleChecker+Valid, 6936 SdHoareTripleChecker+Invalid, 2265 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 2263 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-12-02 10:22:40,056 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1182 Valid, 6936 Invalid, 2265 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 2263 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-12-02 10:22:40,059 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8106 states. [2024-12-02 10:22:40,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8106 to 7561. [2024-12-02 10:22:40,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7561 states, 7390 states have (on average 1.4102841677943165) internal successors, (10422), 7390 states have internal predecessors, (10422), 169 states have call successors, (169), 1 states have call predecessors, (169), 1 states have return successors, (169), 169 states have call predecessors, (169), 169 states have call successors, (169) [2024-12-02 10:22:40,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7561 states to 7561 states and 10760 transitions. [2024-12-02 10:22:40,150 INFO L78 Accepts]: Start accepts. Automaton has 7561 states and 10760 transitions. Word has length 812 [2024-12-02 10:22:40,150 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:22:40,150 INFO L471 AbstractCegarLoop]: Abstraction has 7561 states and 10760 transitions. [2024-12-02 10:22:40,150 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 63.44444444444444) internal successors, (571), 9 states have internal predecessors, (571), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-12-02 10:22:40,150 INFO L276 IsEmpty]: Start isEmpty. Operand 7561 states and 10760 transitions. [2024-12-02 10:22:40,158 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 815 [2024-12-02 10:22:40,158 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:22:40,159 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:22:40,177 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a70003ac-7918-4afc-bf60-f5b65c90ed47/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-12-02 10:22:40,359 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a70003ac-7918-4afc-bf60-f5b65c90ed47/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 10:22:40,359 INFO L396 AbstractCegarLoop]: === Iteration 52 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:22:40,360 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:22:40,360 INFO L85 PathProgramCache]: Analyzing trace with hash -83168791, now seen corresponding path program 1 times [2024-12-02 10:22:40,360 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:22:40,360 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1959238067] [2024-12-02 10:22:40,360 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:22:40,360 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:22:40,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:22:42,336 INFO L134 CoverageAnalysis]: Checked inductivity of 623 backedges. 259 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-12-02 10:22:42,336 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:22:42,336 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1959238067] [2024-12-02 10:22:42,336 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1959238067] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:22:42,336 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:22:42,336 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 10:22:42,337 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1777474557] [2024-12-02 10:22:42,337 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:22:42,337 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 10:22:42,337 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:22:42,338 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 10:22:42,338 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-12-02 10:22:42,338 INFO L87 Difference]: Start difference. First operand 7561 states and 10760 transitions. Second operand has 6 states, 6 states have (on average 124.5) internal successors, (747), 6 states have internal predecessors, (747), 3 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2024-12-02 10:22:43,403 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:22:43,403 INFO L93 Difference]: Finished difference Result 14159 states and 20291 transitions. [2024-12-02 10:22:43,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 10:22:43,404 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 124.5) internal successors, (747), 6 states have internal predecessors, (747), 3 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 814 [2024-12-02 10:22:43,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:22:43,413 INFO L225 Difference]: With dead ends: 14159 [2024-12-02 10:22:43,413 INFO L226 Difference]: Without dead ends: 12064 [2024-12-02 10:22:43,417 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-12-02 10:22:43,418 INFO L435 NwaCegarLoop]: 1285 mSDtfsCounter, 2007 mSDsluCounter, 3547 mSDsCounter, 0 mSdLazyCounter, 1777 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2011 SdHoareTripleChecker+Valid, 4832 SdHoareTripleChecker+Invalid, 1778 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1777 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-12-02 10:22:43,418 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2011 Valid, 4832 Invalid, 1778 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1777 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-12-02 10:22:43,425 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12064 states. [2024-12-02 10:22:43,545 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12064 to 11613. [2024-12-02 10:22:43,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11613 states, 11396 states have (on average 1.4204106704106705) internal successors, (16187), 11396 states have internal predecessors, (16187), 215 states have call successors, (215), 1 states have call predecessors, (215), 1 states have return successors, (215), 215 states have call predecessors, (215), 215 states have call successors, (215) [2024-12-02 10:22:43,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11613 states to 11613 states and 16617 transitions. [2024-12-02 10:22:43,564 INFO L78 Accepts]: Start accepts. Automaton has 11613 states and 16617 transitions. Word has length 814 [2024-12-02 10:22:43,564 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:22:43,564 INFO L471 AbstractCegarLoop]: Abstraction has 11613 states and 16617 transitions. [2024-12-02 10:22:43,564 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 124.5) internal successors, (747), 6 states have internal predecessors, (747), 3 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2024-12-02 10:22:43,564 INFO L276 IsEmpty]: Start isEmpty. Operand 11613 states and 16617 transitions. [2024-12-02 10:22:43,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 815 [2024-12-02 10:22:43,575 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:22:43,575 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:22:43,576 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2024-12-02 10:22:43,576 INFO L396 AbstractCegarLoop]: === Iteration 53 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:22:43,576 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:22:43,576 INFO L85 PathProgramCache]: Analyzing trace with hash 1467314613, now seen corresponding path program 1 times [2024-12-02 10:22:43,576 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:22:43,577 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [305241463] [2024-12-02 10:22:43,577 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:22:43,577 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:22:48,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:22:49,771 INFO L134 CoverageAnalysis]: Checked inductivity of 624 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 601 trivial. 0 not checked. [2024-12-02 10:22:49,771 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:22:49,771 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [305241463] [2024-12-02 10:22:49,772 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [305241463] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:22:49,772 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:22:49,772 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 10:22:49,772 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1443593325] [2024-12-02 10:22:49,772 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:22:49,772 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 10:22:49,772 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:22:49,773 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 10:22:49,773 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-12-02 10:22:49,773 INFO L87 Difference]: Start difference. First operand 11613 states and 16617 transitions. Second operand has 6 states, 6 states have (on average 87.16666666666667) internal successors, (523), 6 states have internal predecessors, (523), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-12-02 10:22:50,459 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:22:50,459 INFO L93 Difference]: Finished difference Result 22339 states and 31964 transitions. [2024-12-02 10:22:50,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 10:22:50,460 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 87.16666666666667) internal successors, (523), 6 states have internal predecessors, (523), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 814 [2024-12-02 10:22:50,460 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:22:50,468 INFO L225 Difference]: With dead ends: 22339 [2024-12-02 10:22:50,468 INFO L226 Difference]: Without dead ends: 11641 [2024-12-02 10:22:50,474 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-12-02 10:22:50,475 INFO L435 NwaCegarLoop]: 1008 mSDtfsCounter, 1231 mSDsluCounter, 3009 mSDsCounter, 0 mSdLazyCounter, 1270 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1237 SdHoareTripleChecker+Valid, 4017 SdHoareTripleChecker+Invalid, 1270 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1270 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-12-02 10:22:50,475 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1237 Valid, 4017 Invalid, 1270 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1270 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-12-02 10:22:50,479 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11641 states. [2024-12-02 10:22:50,580 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11641 to 11627. [2024-12-02 10:22:50,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11627 states, 11410 states have (on average 1.419894829097283) internal successors, (16201), 11410 states have internal predecessors, (16201), 215 states have call successors, (215), 1 states have call predecessors, (215), 1 states have return successors, (215), 215 states have call predecessors, (215), 215 states have call successors, (215) [2024-12-02 10:22:50,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11627 states to 11627 states and 16631 transitions. [2024-12-02 10:22:50,597 INFO L78 Accepts]: Start accepts. Automaton has 11627 states and 16631 transitions. Word has length 814 [2024-12-02 10:22:50,597 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:22:50,597 INFO L471 AbstractCegarLoop]: Abstraction has 11627 states and 16631 transitions. [2024-12-02 10:22:50,598 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 87.16666666666667) internal successors, (523), 6 states have internal predecessors, (523), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-12-02 10:22:50,598 INFO L276 IsEmpty]: Start isEmpty. Operand 11627 states and 16631 transitions. [2024-12-02 10:22:50,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 817 [2024-12-02 10:22:50,607 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:22:50,608 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:22:50,608 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2024-12-02 10:22:50,608 INFO L396 AbstractCegarLoop]: === Iteration 54 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:22:50,608 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:22:50,609 INFO L85 PathProgramCache]: Analyzing trace with hash 245388703, now seen corresponding path program 1 times [2024-12-02 10:22:50,609 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:22:50,609 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2078490878] [2024-12-02 10:22:50,609 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:22:50,609 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:22:55,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:22:57,120 INFO L134 CoverageAnalysis]: Checked inductivity of 625 backedges. 164 proven. 0 refuted. 0 times theorem prover too weak. 461 trivial. 0 not checked. [2024-12-02 10:22:57,121 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:22:57,121 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2078490878] [2024-12-02 10:22:57,121 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2078490878] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:22:57,121 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:22:57,121 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 10:22:57,121 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [859045924] [2024-12-02 10:22:57,121 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:22:57,121 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 10:22:57,121 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:22:57,122 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 10:22:57,122 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-12-02 10:22:57,122 INFO L87 Difference]: Start difference. First operand 11627 states and 16631 transitions. Second operand has 5 states, 5 states have (on average 132.8) internal successors, (664), 5 states have internal predecessors, (664), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2024-12-02 10:22:57,716 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:22:57,716 INFO L93 Difference]: Finished difference Result 19157 states and 27552 transitions. [2024-12-02 10:22:57,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 10:22:57,717 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 132.8) internal successors, (664), 5 states have internal predecessors, (664), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 816 [2024-12-02 10:22:57,717 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:22:57,725 INFO L225 Difference]: With dead ends: 19157 [2024-12-02 10:22:57,725 INFO L226 Difference]: Without dead ends: 11675 [2024-12-02 10:22:57,731 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-12-02 10:22:57,731 INFO L435 NwaCegarLoop]: 1026 mSDtfsCounter, 813 mSDsluCounter, 2019 mSDsCounter, 0 mSdLazyCounter, 903 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 813 SdHoareTripleChecker+Valid, 3045 SdHoareTripleChecker+Invalid, 903 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 903 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-12-02 10:22:57,731 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [813 Valid, 3045 Invalid, 903 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 903 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-12-02 10:22:57,736 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11675 states. [2024-12-02 10:22:57,883 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11675 to 11651. [2024-12-02 10:22:57,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11651 states, 11434 states have (on average 1.4190134686024138) internal successors, (16225), 11434 states have internal predecessors, (16225), 215 states have call successors, (215), 1 states have call predecessors, (215), 1 states have return successors, (215), 215 states have call predecessors, (215), 215 states have call successors, (215) [2024-12-02 10:22:57,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11651 states to 11651 states and 16655 transitions. [2024-12-02 10:22:57,902 INFO L78 Accepts]: Start accepts. Automaton has 11651 states and 16655 transitions. Word has length 816 [2024-12-02 10:22:57,902 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:22:57,902 INFO L471 AbstractCegarLoop]: Abstraction has 11651 states and 16655 transitions. [2024-12-02 10:22:57,902 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 132.8) internal successors, (664), 5 states have internal predecessors, (664), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2024-12-02 10:22:57,902 INFO L276 IsEmpty]: Start isEmpty. Operand 11651 states and 16655 transitions. [2024-12-02 10:22:57,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 817 [2024-12-02 10:22:57,913 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:22:57,913 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:22:57,913 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2024-12-02 10:22:57,913 INFO L396 AbstractCegarLoop]: === Iteration 55 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:22:57,914 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:22:57,914 INFO L85 PathProgramCache]: Analyzing trace with hash -1314915329, now seen corresponding path program 1 times [2024-12-02 10:22:57,914 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:22:57,914 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [888147176] [2024-12-02 10:22:57,914 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:22:57,914 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:23:01,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:23:03,644 INFO L134 CoverageAnalysis]: Checked inductivity of 625 backedges. 100 proven. 0 refuted. 0 times theorem prover too weak. 525 trivial. 0 not checked. [2024-12-02 10:23:03,644 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:23:03,644 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [888147176] [2024-12-02 10:23:03,644 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [888147176] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:23:03,644 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:23:03,644 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 10:23:03,644 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1425728928] [2024-12-02 10:23:03,644 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:23:03,645 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 10:23:03,645 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:23:03,645 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 10:23:03,645 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-12-02 10:23:03,645 INFO L87 Difference]: Start difference. First operand 11651 states and 16655 transitions. Second operand has 6 states, 6 states have (on average 98.5) internal successors, (591), 6 states have internal predecessors, (591), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-12-02 10:23:04,326 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:23:04,326 INFO L93 Difference]: Finished difference Result 19165 states and 27536 transitions. [2024-12-02 10:23:04,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 10:23:04,326 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 98.5) internal successors, (591), 6 states have internal predecessors, (591), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 816 [2024-12-02 10:23:04,327 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:23:04,337 INFO L225 Difference]: With dead ends: 19165 [2024-12-02 10:23:04,338 INFO L226 Difference]: Without dead ends: 11675 [2024-12-02 10:23:04,342 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2024-12-02 10:23:04,343 INFO L435 NwaCegarLoop]: 997 mSDtfsCounter, 2482 mSDsluCounter, 1962 mSDsCounter, 0 mSdLazyCounter, 985 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2489 SdHoareTripleChecker+Valid, 2959 SdHoareTripleChecker+Invalid, 988 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 985 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-12-02 10:23:04,343 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2489 Valid, 2959 Invalid, 988 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 985 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-12-02 10:23:04,349 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11675 states. [2024-12-02 10:23:04,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11675 to 11651. [2024-12-02 10:23:04,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11651 states, 11434 states have (on average 1.4169144656288264) internal successors, (16201), 11434 states have internal predecessors, (16201), 215 states have call successors, (215), 1 states have call predecessors, (215), 1 states have return successors, (215), 215 states have call predecessors, (215), 215 states have call successors, (215) [2024-12-02 10:23:04,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11651 states to 11651 states and 16631 transitions. [2024-12-02 10:23:04,480 INFO L78 Accepts]: Start accepts. Automaton has 11651 states and 16631 transitions. Word has length 816 [2024-12-02 10:23:04,480 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:23:04,480 INFO L471 AbstractCegarLoop]: Abstraction has 11651 states and 16631 transitions. [2024-12-02 10:23:04,481 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 98.5) internal successors, (591), 6 states have internal predecessors, (591), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-12-02 10:23:04,481 INFO L276 IsEmpty]: Start isEmpty. Operand 11651 states and 16631 transitions. [2024-12-02 10:23:04,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 819 [2024-12-02 10:23:04,492 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:23:04,492 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:23:04,492 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54 [2024-12-02 10:23:04,492 INFO L396 AbstractCegarLoop]: === Iteration 56 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:23:04,492 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:23:04,493 INFO L85 PathProgramCache]: Analyzing trace with hash -439209403, now seen corresponding path program 1 times [2024-12-02 10:23:04,493 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:23:04,493 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [342258862] [2024-12-02 10:23:04,493 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:23:04,493 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:23:09,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:23:12,434 INFO L134 CoverageAnalysis]: Checked inductivity of 626 backedges. 261 proven. 1 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-12-02 10:23:12,434 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:23:12,434 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [342258862] [2024-12-02 10:23:12,434 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [342258862] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 10:23:12,434 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [739430940] [2024-12-02 10:23:12,435 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:23:12,435 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 10:23:12,435 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a70003ac-7918-4afc-bf60-f5b65c90ed47/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 10:23:12,436 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a70003ac-7918-4afc-bf60-f5b65c90ed47/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 10:23:12,437 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a70003ac-7918-4afc-bf60-f5b65c90ed47/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-12-02 10:23:14,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:23:14,495 INFO L256 TraceCheckSpWp]: Trace formula consists of 4353 conjuncts, 39 conjuncts are in the unsatisfiable core [2024-12-02 10:23:14,509 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:23:14,956 INFO L134 CoverageAnalysis]: Checked inductivity of 626 backedges. 249 proven. 0 refuted. 0 times theorem prover too weak. 377 trivial. 0 not checked. [2024-12-02 10:23:14,956 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 10:23:14,956 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [739430940] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:23:14,956 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 10:23:14,957 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [9] total 16 [2024-12-02 10:23:14,957 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [494315086] [2024-12-02 10:23:14,957 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:23:14,957 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-12-02 10:23:14,958 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:23:14,958 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-12-02 10:23:14,958 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=198, Unknown=0, NotChecked=0, Total=240 [2024-12-02 10:23:14,959 INFO L87 Difference]: Start difference. First operand 11651 states and 16631 transitions. Second operand has 9 states, 9 states have (on average 63.0) internal successors, (567), 9 states have internal predecessors, (567), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-12-02 10:23:16,054 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:23:16,055 INFO L93 Difference]: Finished difference Result 19965 states and 28622 transitions. [2024-12-02 10:23:16,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-02 10:23:16,055 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 63.0) internal successors, (567), 9 states have internal predecessors, (567), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 818 [2024-12-02 10:23:16,055 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:23:16,063 INFO L225 Difference]: With dead ends: 19965 [2024-12-02 10:23:16,064 INFO L226 Difference]: Without dead ends: 11785 [2024-12-02 10:23:16,069 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 827 GetRequests, 813 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=42, Invalid=198, Unknown=0, NotChecked=0, Total=240 [2024-12-02 10:23:16,070 INFO L435 NwaCegarLoop]: 1003 mSDtfsCounter, 1187 mSDsluCounter, 5933 mSDsCounter, 0 mSdLazyCounter, 2256 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1189 SdHoareTripleChecker+Valid, 6936 SdHoareTripleChecker+Invalid, 2257 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 2256 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-12-02 10:23:16,070 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1189 Valid, 6936 Invalid, 2257 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 2256 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-12-02 10:23:16,075 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11785 states. [2024-12-02 10:23:16,198 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11785 to 11741. [2024-12-02 10:23:16,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11741 states, 11524 states have (on average 1.4136584519264144) internal successors, (16291), 11524 states have internal predecessors, (16291), 215 states have call successors, (215), 1 states have call predecessors, (215), 1 states have return successors, (215), 215 states have call predecessors, (215), 215 states have call successors, (215) [2024-12-02 10:23:16,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11741 states to 11741 states and 16721 transitions. [2024-12-02 10:23:16,218 INFO L78 Accepts]: Start accepts. Automaton has 11741 states and 16721 transitions. Word has length 818 [2024-12-02 10:23:16,218 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:23:16,218 INFO L471 AbstractCegarLoop]: Abstraction has 11741 states and 16721 transitions. [2024-12-02 10:23:16,218 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 63.0) internal successors, (567), 9 states have internal predecessors, (567), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-12-02 10:23:16,218 INFO L276 IsEmpty]: Start isEmpty. Operand 11741 states and 16721 transitions. [2024-12-02 10:23:16,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 820 [2024-12-02 10:23:16,229 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:23:16,230 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:23:16,253 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a70003ac-7918-4afc-bf60-f5b65c90ed47/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-12-02 10:23:16,430 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a70003ac-7918-4afc-bf60-f5b65c90ed47/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 10:23:16,430 INFO L396 AbstractCegarLoop]: === Iteration 57 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:23:16,431 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:23:16,431 INFO L85 PathProgramCache]: Analyzing trace with hash 1115457343, now seen corresponding path program 1 times [2024-12-02 10:23:16,431 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:23:16,431 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1551474775] [2024-12-02 10:23:16,431 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:23:16,431 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:23:19,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:23:21,497 INFO L134 CoverageAnalysis]: Checked inductivity of 628 backedges. 29 proven. 0 refuted. 0 times theorem prover too weak. 599 trivial. 0 not checked. [2024-12-02 10:23:21,497 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:23:21,497 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1551474775] [2024-12-02 10:23:21,497 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1551474775] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:23:21,497 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:23:21,498 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 10:23:21,498 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1035783908] [2024-12-02 10:23:21,498 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:23:21,498 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 10:23:21,499 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:23:21,499 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 10:23:21,499 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-12-02 10:23:21,499 INFO L87 Difference]: Start difference. First operand 11741 states and 16721 transitions. Second operand has 6 states, 6 states have (on average 87.66666666666667) internal successors, (526), 6 states have internal predecessors, (526), 2 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-12-02 10:23:22,454 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:23:22,454 INFO L93 Difference]: Finished difference Result 31121 states and 44280 transitions. [2024-12-02 10:23:22,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 10:23:22,454 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 87.66666666666667) internal successors, (526), 6 states have internal predecessors, (526), 2 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 819 [2024-12-02 10:23:22,454 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:23:22,470 INFO L225 Difference]: With dead ends: 31121 [2024-12-02 10:23:22,470 INFO L226 Difference]: Without dead ends: 20379 [2024-12-02 10:23:22,479 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-12-02 10:23:22,479 INFO L435 NwaCegarLoop]: 1024 mSDtfsCounter, 2314 mSDsluCounter, 3043 mSDsCounter, 0 mSdLazyCounter, 1208 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2326 SdHoareTripleChecker+Valid, 4067 SdHoareTripleChecker+Invalid, 1208 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1208 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-12-02 10:23:22,479 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2326 Valid, 4067 Invalid, 1208 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1208 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-12-02 10:23:22,489 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20379 states. [2024-12-02 10:23:22,657 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20379 to 12533. [2024-12-02 10:23:22,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12533 states, 12292 states have (on average 1.41124308493329) internal successors, (17347), 12292 states have internal predecessors, (17347), 239 states have call successors, (239), 1 states have call predecessors, (239), 1 states have return successors, (239), 239 states have call predecessors, (239), 239 states have call successors, (239) [2024-12-02 10:23:22,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12533 states to 12533 states and 17825 transitions. [2024-12-02 10:23:22,679 INFO L78 Accepts]: Start accepts. Automaton has 12533 states and 17825 transitions. Word has length 819 [2024-12-02 10:23:22,679 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:23:22,679 INFO L471 AbstractCegarLoop]: Abstraction has 12533 states and 17825 transitions. [2024-12-02 10:23:22,680 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 87.66666666666667) internal successors, (526), 6 states have internal predecessors, (526), 2 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-12-02 10:23:22,680 INFO L276 IsEmpty]: Start isEmpty. Operand 12533 states and 17825 transitions. [2024-12-02 10:23:22,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 821 [2024-12-02 10:23:22,692 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:23:22,693 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:23:22,693 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56 [2024-12-02 10:23:22,693 INFO L396 AbstractCegarLoop]: === Iteration 58 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:23:22,693 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:23:22,694 INFO L85 PathProgramCache]: Analyzing trace with hash -1706359370, now seen corresponding path program 1 times [2024-12-02 10:23:22,694 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:23:22,694 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [141431832] [2024-12-02 10:23:22,694 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:23:22,694 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:23:27,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:23:29,623 INFO L134 CoverageAnalysis]: Checked inductivity of 629 backedges. 216 proven. 1 refuted. 0 times theorem prover too weak. 412 trivial. 0 not checked. [2024-12-02 10:23:29,623 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:23:29,623 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [141431832] [2024-12-02 10:23:29,623 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [141431832] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 10:23:29,623 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1238096720] [2024-12-02 10:23:29,623 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:23:29,623 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 10:23:29,623 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a70003ac-7918-4afc-bf60-f5b65c90ed47/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 10:23:29,625 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a70003ac-7918-4afc-bf60-f5b65c90ed47/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 10:23:29,626 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a70003ac-7918-4afc-bf60-f5b65c90ed47/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-12-02 10:23:31,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:23:31,877 INFO L256 TraceCheckSpWp]: Trace formula consists of 4357 conjuncts, 43 conjuncts are in the unsatisfiable core [2024-12-02 10:23:31,889 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:23:32,255 INFO L134 CoverageAnalysis]: Checked inductivity of 629 backedges. 187 proven. 0 refuted. 0 times theorem prover too weak. 442 trivial. 0 not checked. [2024-12-02 10:23:32,255 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 10:23:32,255 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1238096720] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:23:32,255 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 10:23:32,255 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [7] total 13 [2024-12-02 10:23:32,255 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [98211112] [2024-12-02 10:23:32,255 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:23:32,256 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-12-02 10:23:32,256 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:23:32,257 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-12-02 10:23:32,257 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2024-12-02 10:23:32,257 INFO L87 Difference]: Start difference. First operand 12533 states and 17825 transitions. Second operand has 8 states, 8 states have (on average 69.25) internal successors, (554), 8 states have internal predecessors, (554), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-12-02 10:23:33,261 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:23:33,262 INFO L93 Difference]: Finished difference Result 22315 states and 31806 transitions. [2024-12-02 10:23:33,262 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-02 10:23:33,262 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 69.25) internal successors, (554), 8 states have internal predecessors, (554), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 820 [2024-12-02 10:23:33,262 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:23:33,271 INFO L225 Difference]: With dead ends: 22315 [2024-12-02 10:23:33,271 INFO L226 Difference]: Without dead ends: 12761 [2024-12-02 10:23:33,277 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 827 GetRequests, 816 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2024-12-02 10:23:33,277 INFO L435 NwaCegarLoop]: 1002 mSDtfsCounter, 1197 mSDsluCounter, 4945 mSDsCounter, 0 mSdLazyCounter, 1931 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1201 SdHoareTripleChecker+Valid, 5947 SdHoareTripleChecker+Invalid, 1933 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1931 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-12-02 10:23:33,278 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1201 Valid, 5947 Invalid, 1933 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1931 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-12-02 10:23:33,282 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12761 states. [2024-12-02 10:23:33,406 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12761 to 12569. [2024-12-02 10:23:33,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12569 states, 12328 states have (on average 1.401038286826736) internal successors, (17272), 12328 states have internal predecessors, (17272), 239 states have call successors, (239), 1 states have call predecessors, (239), 1 states have return successors, (239), 239 states have call predecessors, (239), 239 states have call successors, (239) [2024-12-02 10:23:33,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12569 states to 12569 states and 17750 transitions. [2024-12-02 10:23:33,427 INFO L78 Accepts]: Start accepts. Automaton has 12569 states and 17750 transitions. Word has length 820 [2024-12-02 10:23:33,427 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:23:33,427 INFO L471 AbstractCegarLoop]: Abstraction has 12569 states and 17750 transitions. [2024-12-02 10:23:33,427 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 69.25) internal successors, (554), 8 states have internal predecessors, (554), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-12-02 10:23:33,427 INFO L276 IsEmpty]: Start isEmpty. Operand 12569 states and 17750 transitions. [2024-12-02 10:23:33,438 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 823 [2024-12-02 10:23:33,438 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:23:33,438 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:23:33,458 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a70003ac-7918-4afc-bf60-f5b65c90ed47/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-12-02 10:23:33,639 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a70003ac-7918-4afc-bf60-f5b65c90ed47/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 10:23:33,639 INFO L396 AbstractCegarLoop]: === Iteration 59 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:23:33,639 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:23:33,639 INFO L85 PathProgramCache]: Analyzing trace with hash 383001792, now seen corresponding path program 1 times [2024-12-02 10:23:33,640 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:23:33,640 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1475029801] [2024-12-02 10:23:33,640 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:23:33,640 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:23:36,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:23:38,747 INFO L134 CoverageAnalysis]: Checked inductivity of 630 backedges. 52 proven. 0 refuted. 0 times theorem prover too weak. 578 trivial. 0 not checked. [2024-12-02 10:23:38,747 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:23:38,747 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1475029801] [2024-12-02 10:23:38,747 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1475029801] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:23:38,747 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:23:38,747 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-12-02 10:23:38,747 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1000089266] [2024-12-02 10:23:38,747 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:23:38,748 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 10:23:38,748 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:23:38,749 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 10:23:38,749 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-12-02 10:23:38,749 INFO L87 Difference]: Start difference. First operand 12569 states and 17750 transitions. Second operand has 7 states, 7 states have (on average 78.42857142857143) internal successors, (549), 7 states have internal predecessors, (549), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-12-02 10:23:39,005 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:23:39,006 INFO L93 Difference]: Finished difference Result 19147 states and 27073 transitions. [2024-12-02 10:23:39,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 10:23:39,006 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 78.42857142857143) internal successors, (549), 7 states have internal predecessors, (549), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 822 [2024-12-02 10:23:39,006 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:23:39,016 INFO L225 Difference]: With dead ends: 19147 [2024-12-02 10:23:39,016 INFO L226 Difference]: Without dead ends: 12677 [2024-12-02 10:23:39,021 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-12-02 10:23:39,022 INFO L435 NwaCegarLoop]: 1296 mSDtfsCounter, 1202 mSDsluCounter, 5072 mSDsCounter, 0 mSdLazyCounter, 221 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1206 SdHoareTripleChecker+Valid, 6368 SdHoareTripleChecker+Invalid, 221 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 221 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 10:23:39,022 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1206 Valid, 6368 Invalid, 221 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 221 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 10:23:39,028 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12677 states. [2024-12-02 10:23:39,168 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12677 to 12623. [2024-12-02 10:23:39,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12623 states, 12382 states have (on average 1.399289290906154) internal successors, (17326), 12382 states have internal predecessors, (17326), 239 states have call successors, (239), 1 states have call predecessors, (239), 1 states have return successors, (239), 239 states have call predecessors, (239), 239 states have call successors, (239) [2024-12-02 10:23:39,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12623 states to 12623 states and 17804 transitions. [2024-12-02 10:23:39,190 INFO L78 Accepts]: Start accepts. Automaton has 12623 states and 17804 transitions. Word has length 822 [2024-12-02 10:23:39,190 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:23:39,190 INFO L471 AbstractCegarLoop]: Abstraction has 12623 states and 17804 transitions. [2024-12-02 10:23:39,191 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 78.42857142857143) internal successors, (549), 7 states have internal predecessors, (549), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-12-02 10:23:39,191 INFO L276 IsEmpty]: Start isEmpty. Operand 12623 states and 17804 transitions. [2024-12-02 10:23:39,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 823 [2024-12-02 10:23:39,204 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:23:39,204 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:23:39,204 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable58 [2024-12-02 10:23:39,204 INFO L396 AbstractCegarLoop]: === Iteration 60 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:23:39,204 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:23:39,205 INFO L85 PathProgramCache]: Analyzing trace with hash 76830720, now seen corresponding path program 1 times [2024-12-02 10:23:39,205 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:23:39,205 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1417451938] [2024-12-02 10:23:39,205 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:23:39,205 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:23:44,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:23:46,193 INFO L134 CoverageAnalysis]: Checked inductivity of 630 backedges. 108 proven. 0 refuted. 0 times theorem prover too weak. 522 trivial. 0 not checked. [2024-12-02 10:23:46,193 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:23:46,193 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1417451938] [2024-12-02 10:23:46,193 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1417451938] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:23:46,193 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:23:46,193 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-12-02 10:23:46,193 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [513106657] [2024-12-02 10:23:46,193 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:23:46,194 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-12-02 10:23:46,194 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:23:46,195 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-12-02 10:23:46,195 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-12-02 10:23:46,196 INFO L87 Difference]: Start difference. First operand 12623 states and 17804 transitions. Second operand has 8 states, 8 states have (on average 75.0) internal successors, (600), 8 states have internal predecessors, (600), 3 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2024-12-02 10:23:47,686 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:23:47,687 INFO L93 Difference]: Finished difference Result 28969 states and 41327 transitions. [2024-12-02 10:23:47,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-12-02 10:23:47,687 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 75.0) internal successors, (600), 8 states have internal predecessors, (600), 3 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 822 [2024-12-02 10:23:47,687 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:23:47,703 INFO L225 Difference]: With dead ends: 28969 [2024-12-02 10:23:47,703 INFO L226 Difference]: Without dead ends: 21507 [2024-12-02 10:23:47,711 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2024-12-02 10:23:47,712 INFO L435 NwaCegarLoop]: 2076 mSDtfsCounter, 2276 mSDsluCounter, 8967 mSDsCounter, 0 mSdLazyCounter, 2211 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2283 SdHoareTripleChecker+Valid, 11043 SdHoareTripleChecker+Invalid, 2211 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2211 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-12-02 10:23:47,712 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2283 Valid, 11043 Invalid, 2211 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2211 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-12-02 10:23:47,721 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21507 states. [2024-12-02 10:23:47,947 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21507 to 21430. [2024-12-02 10:23:47,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21430 states, 21070 states have (on average 1.41015662078785) internal successors, (29712), 21070 states have internal predecessors, (29712), 358 states have call successors, (358), 1 states have call predecessors, (358), 1 states have return successors, (358), 358 states have call predecessors, (358), 358 states have call successors, (358) [2024-12-02 10:23:47,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21430 states to 21430 states and 30428 transitions. [2024-12-02 10:23:47,984 INFO L78 Accepts]: Start accepts. Automaton has 21430 states and 30428 transitions. Word has length 822 [2024-12-02 10:23:47,984 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:23:47,984 INFO L471 AbstractCegarLoop]: Abstraction has 21430 states and 30428 transitions. [2024-12-02 10:23:47,984 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 75.0) internal successors, (600), 8 states have internal predecessors, (600), 3 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2024-12-02 10:23:47,984 INFO L276 IsEmpty]: Start isEmpty. Operand 21430 states and 30428 transitions. [2024-12-02 10:23:48,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 825 [2024-12-02 10:23:48,004 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:23:48,004 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:23:48,004 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable59 [2024-12-02 10:23:48,004 INFO L396 AbstractCegarLoop]: === Iteration 61 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:23:48,004 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:23:48,005 INFO L85 PathProgramCache]: Analyzing trace with hash -764001226, now seen corresponding path program 1 times [2024-12-02 10:23:48,005 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:23:48,005 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [514698521] [2024-12-02 10:23:48,005 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:23:48,005 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:23:51,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:23:53,477 INFO L134 CoverageAnalysis]: Checked inductivity of 631 backedges. 60 proven. 0 refuted. 0 times theorem prover too weak. 571 trivial. 0 not checked. [2024-12-02 10:23:53,477 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:23:53,477 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [514698521] [2024-12-02 10:23:53,477 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [514698521] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:23:53,477 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:23:53,477 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-12-02 10:23:53,477 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [940343541] [2024-12-02 10:23:53,477 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:23:53,478 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 10:23:53,478 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:23:53,478 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 10:23:53,478 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-12-02 10:23:53,478 INFO L87 Difference]: Start difference. First operand 21430 states and 30428 transitions. Second operand has 7 states, 7 states have (on average 79.57142857142857) internal successors, (557), 7 states have internal predecessors, (557), 2 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-12-02 10:23:53,928 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:23:53,928 INFO L93 Difference]: Finished difference Result 47194 states and 67011 transitions. [2024-12-02 10:23:53,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 10:23:53,928 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 79.57142857142857) internal successors, (557), 7 states have internal predecessors, (557), 2 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 824 [2024-12-02 10:23:53,929 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:23:53,955 INFO L225 Difference]: With dead ends: 47194 [2024-12-02 10:23:53,955 INFO L226 Difference]: Without dead ends: 34890 [2024-12-02 10:23:53,969 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=37, Invalid=73, Unknown=0, NotChecked=0, Total=110 [2024-12-02 10:23:53,969 INFO L435 NwaCegarLoop]: 1300 mSDtfsCounter, 3735 mSDsluCounter, 4493 mSDsCounter, 0 mSdLazyCounter, 138 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3742 SdHoareTripleChecker+Valid, 5793 SdHoareTripleChecker+Invalid, 162 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 138 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 10:23:53,969 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3742 Valid, 5793 Invalid, 162 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 138 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 10:23:53,984 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34890 states. [2024-12-02 10:23:54,288 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34890 to 24214. [2024-12-02 10:23:54,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24214 states, 23734 states have (on average 1.3977416364708857) internal successors, (33174), 23734 states have internal predecessors, (33174), 478 states have call successors, (478), 1 states have call predecessors, (478), 1 states have return successors, (478), 478 states have call predecessors, (478), 478 states have call successors, (478) [2024-12-02 10:23:54,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24214 states to 24214 states and 34130 transitions. [2024-12-02 10:23:54,330 INFO L78 Accepts]: Start accepts. Automaton has 24214 states and 34130 transitions. Word has length 824 [2024-12-02 10:23:54,330 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:23:54,330 INFO L471 AbstractCegarLoop]: Abstraction has 24214 states and 34130 transitions. [2024-12-02 10:23:54,330 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 79.57142857142857) internal successors, (557), 7 states have internal predecessors, (557), 2 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-12-02 10:23:54,330 INFO L276 IsEmpty]: Start isEmpty. Operand 24214 states and 34130 transitions. [2024-12-02 10:23:54,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 825 [2024-12-02 10:23:54,351 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:23:54,351 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:23:54,352 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60 [2024-12-02 10:23:54,352 INFO L396 AbstractCegarLoop]: === Iteration 62 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:23:54,352 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:23:54,352 INFO L85 PathProgramCache]: Analyzing trace with hash -1189486494, now seen corresponding path program 1 times [2024-12-02 10:23:54,352 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:23:54,352 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [624378199] [2024-12-02 10:23:54,352 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:23:54,353 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:24:00,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:24:02,500 INFO L134 CoverageAnalysis]: Checked inductivity of 631 backedges. 79 proven. 0 refuted. 0 times theorem prover too weak. 552 trivial. 0 not checked. [2024-12-02 10:24:02,500 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:24:02,500 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [624378199] [2024-12-02 10:24:02,500 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [624378199] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:24:02,500 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:24:02,500 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-12-02 10:24:02,500 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1173012819] [2024-12-02 10:24:02,500 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:24:02,500 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-12-02 10:24:02,500 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:24:02,501 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-12-02 10:24:02,501 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-12-02 10:24:02,501 INFO L87 Difference]: Start difference. First operand 24214 states and 34130 transitions. Second operand has 8 states, 8 states have (on average 71.75) internal successors, (574), 8 states have internal predecessors, (574), 3 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2024-12-02 10:24:02,997 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:24:02,997 INFO L93 Difference]: Finished difference Result 43645 states and 62087 transitions. [2024-12-02 10:24:02,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-02 10:24:02,997 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 71.75) internal successors, (574), 8 states have internal predecessors, (574), 3 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) Word has length 824 [2024-12-02 10:24:02,998 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:24:03,021 INFO L225 Difference]: With dead ends: 43645 [2024-12-02 10:24:03,021 INFO L226 Difference]: Without dead ends: 32202 [2024-12-02 10:24:03,034 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2024-12-02 10:24:03,034 INFO L435 NwaCegarLoop]: 2230 mSDtfsCounter, 2192 mSDsluCounter, 10129 mSDsCounter, 0 mSdLazyCounter, 349 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2197 SdHoareTripleChecker+Valid, 12359 SdHoareTripleChecker+Invalid, 349 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 349 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 10:24:03,034 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2197 Valid, 12359 Invalid, 349 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 349 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 10:24:03,049 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32202 states. [2024-12-02 10:24:03,356 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32202 to 24246. [2024-12-02 10:24:03,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24246 states, 23766 states have (on average 1.3972060927375243) internal successors, (33206), 23766 states have internal predecessors, (33206), 478 states have call successors, (478), 1 states have call predecessors, (478), 1 states have return successors, (478), 478 states have call predecessors, (478), 478 states have call successors, (478) [2024-12-02 10:24:03,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24246 states to 24246 states and 34162 transitions. [2024-12-02 10:24:03,396 INFO L78 Accepts]: Start accepts. Automaton has 24246 states and 34162 transitions. Word has length 824 [2024-12-02 10:24:03,396 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:24:03,396 INFO L471 AbstractCegarLoop]: Abstraction has 24246 states and 34162 transitions. [2024-12-02 10:24:03,396 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 71.75) internal successors, (574), 8 states have internal predecessors, (574), 3 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2024-12-02 10:24:03,396 INFO L276 IsEmpty]: Start isEmpty. Operand 24246 states and 34162 transitions. [2024-12-02 10:24:03,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 825 [2024-12-02 10:24:03,416 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:24:03,417 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:24:03,417 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61 [2024-12-02 10:24:03,417 INFO L396 AbstractCegarLoop]: === Iteration 63 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:24:03,417 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:24:03,417 INFO L85 PathProgramCache]: Analyzing trace with hash -881464222, now seen corresponding path program 1 times [2024-12-02 10:24:03,418 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:24:03,418 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1723994562] [2024-12-02 10:24:03,418 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:24:03,418 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:24:08,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:24:09,892 INFO L134 CoverageAnalysis]: Checked inductivity of 631 backedges. 267 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-12-02 10:24:09,893 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:24:09,893 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1723994562] [2024-12-02 10:24:09,893 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1723994562] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:24:09,893 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:24:09,893 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 10:24:09,893 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [609724135] [2024-12-02 10:24:09,893 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:24:09,894 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 10:24:09,894 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:24:09,895 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 10:24:09,895 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-12-02 10:24:09,895 INFO L87 Difference]: Start difference. First operand 24246 states and 34162 transitions. Second operand has 6 states, 6 states have (on average 126.16666666666667) internal successors, (757), 6 states have internal predecessors, (757), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-12-02 10:24:10,910 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:24:10,910 INFO L93 Difference]: Finished difference Result 31329 states and 44300 transitions. [2024-12-02 10:24:10,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 10:24:10,910 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 126.16666666666667) internal successors, (757), 6 states have internal predecessors, (757), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 824 [2024-12-02 10:24:10,911 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:24:10,929 INFO L225 Difference]: With dead ends: 31329 [2024-12-02 10:24:10,930 INFO L226 Difference]: Without dead ends: 24804 [2024-12-02 10:24:10,939 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-12-02 10:24:10,939 INFO L435 NwaCegarLoop]: 1019 mSDtfsCounter, 2516 mSDsluCounter, 2957 mSDsCounter, 0 mSdLazyCounter, 1210 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2523 SdHoareTripleChecker+Valid, 3976 SdHoareTripleChecker+Invalid, 1213 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1210 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-12-02 10:24:10,939 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2523 Valid, 3976 Invalid, 1213 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1210 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-12-02 10:24:10,951 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24804 states. [2024-12-02 10:24:11,231 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24804 to 17066. [2024-12-02 10:24:11,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17066 states, 16722 states have (on average 1.3966032771199617) internal successors, (23354), 16722 states have internal predecessors, (23354), 342 states have call successors, (342), 1 states have call predecessors, (342), 1 states have return successors, (342), 342 states have call predecessors, (342), 342 states have call successors, (342) [2024-12-02 10:24:11,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17066 states to 17066 states and 24038 transitions. [2024-12-02 10:24:11,261 INFO L78 Accepts]: Start accepts. Automaton has 17066 states and 24038 transitions. Word has length 824 [2024-12-02 10:24:11,261 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:24:11,261 INFO L471 AbstractCegarLoop]: Abstraction has 17066 states and 24038 transitions. [2024-12-02 10:24:11,261 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 126.16666666666667) internal successors, (757), 6 states have internal predecessors, (757), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-12-02 10:24:11,261 INFO L276 IsEmpty]: Start isEmpty. Operand 17066 states and 24038 transitions. [2024-12-02 10:24:11,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 825 [2024-12-02 10:24:11,276 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:24:11,277 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:24:11,277 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62 [2024-12-02 10:24:11,277 INFO L396 AbstractCegarLoop]: === Iteration 64 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:24:11,277 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:24:11,277 INFO L85 PathProgramCache]: Analyzing trace with hash 76174990, now seen corresponding path program 1 times [2024-12-02 10:24:11,277 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:24:11,278 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [312472405] [2024-12-02 10:24:11,278 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:24:11,278 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:24:16,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:24:18,176 INFO L134 CoverageAnalysis]: Checked inductivity of 631 backedges. 185 proven. 0 refuted. 0 times theorem prover too weak. 446 trivial. 0 not checked. [2024-12-02 10:24:18,176 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:24:18,177 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [312472405] [2024-12-02 10:24:18,177 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [312472405] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:24:18,177 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:24:18,177 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-12-02 10:24:18,177 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1623006779] [2024-12-02 10:24:18,177 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:24:18,178 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-12-02 10:24:18,178 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:24:18,178 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-12-02 10:24:18,178 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-12-02 10:24:18,179 INFO L87 Difference]: Start difference. First operand 17066 states and 24038 transitions. Second operand has 8 states, 8 states have (on average 84.75) internal successors, (678), 8 states have internal predecessors, (678), 3 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2024-12-02 10:24:19,556 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:24:19,557 INFO L93 Difference]: Finished difference Result 21497 states and 30377 transitions. [2024-12-02 10:24:19,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-12-02 10:24:19,557 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 84.75) internal successors, (678), 8 states have internal predecessors, (678), 3 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 824 [2024-12-02 10:24:19,557 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:24:19,570 INFO L225 Difference]: With dead ends: 21497 [2024-12-02 10:24:19,570 INFO L226 Difference]: Without dead ends: 17127 [2024-12-02 10:24:19,576 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2024-12-02 10:24:19,577 INFO L435 NwaCegarLoop]: 2091 mSDtfsCounter, 2199 mSDsluCounter, 9020 mSDsCounter, 0 mSdLazyCounter, 2210 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2206 SdHoareTripleChecker+Valid, 11111 SdHoareTripleChecker+Invalid, 2210 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2210 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-12-02 10:24:19,577 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2206 Valid, 11111 Invalid, 2210 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2210 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-12-02 10:24:19,585 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17127 states. [2024-12-02 10:24:19,797 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17127 to 17066. [2024-12-02 10:24:19,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17066 states, 16722 states have (on average 1.395646453773472) internal successors, (23338), 16722 states have internal predecessors, (23338), 342 states have call successors, (342), 1 states have call predecessors, (342), 1 states have return successors, (342), 342 states have call predecessors, (342), 342 states have call successors, (342) [2024-12-02 10:24:19,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17066 states to 17066 states and 24022 transitions. [2024-12-02 10:24:19,827 INFO L78 Accepts]: Start accepts. Automaton has 17066 states and 24022 transitions. Word has length 824 [2024-12-02 10:24:19,827 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:24:19,827 INFO L471 AbstractCegarLoop]: Abstraction has 17066 states and 24022 transitions. [2024-12-02 10:24:19,827 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 84.75) internal successors, (678), 8 states have internal predecessors, (678), 3 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2024-12-02 10:24:19,827 INFO L276 IsEmpty]: Start isEmpty. Operand 17066 states and 24022 transitions. [2024-12-02 10:24:19,842 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 825 [2024-12-02 10:24:19,842 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:24:19,843 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:24:19,843 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable63 [2024-12-02 10:24:19,843 INFO L396 AbstractCegarLoop]: === Iteration 65 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:24:19,843 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:24:19,844 INFO L85 PathProgramCache]: Analyzing trace with hash -37279150, now seen corresponding path program 1 times [2024-12-02 10:24:19,844 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:24:19,844 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1002232337] [2024-12-02 10:24:19,844 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:24:19,844 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:24:25,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:24:27,257 INFO L134 CoverageAnalysis]: Checked inductivity of 629 backedges. 66 proven. 0 refuted. 0 times theorem prover too weak. 563 trivial. 0 not checked. [2024-12-02 10:24:27,257 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:24:27,258 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1002232337] [2024-12-02 10:24:27,258 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1002232337] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:24:27,258 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:24:27,258 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-12-02 10:24:27,258 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [254658230] [2024-12-02 10:24:27,258 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:24:27,259 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-12-02 10:24:27,259 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:24:27,260 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-12-02 10:24:27,260 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-12-02 10:24:27,260 INFO L87 Difference]: Start difference. First operand 17066 states and 24022 transitions. Second operand has 8 states, 8 states have (on average 70.375) internal successors, (563), 8 states have internal predecessors, (563), 3 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2024-12-02 10:24:28,126 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:24:28,126 INFO L93 Difference]: Finished difference Result 39301 states and 55616 transitions. [2024-12-02 10:24:28,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-02 10:24:28,127 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 70.375) internal successors, (563), 8 states have internal predecessors, (563), 3 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 824 [2024-12-02 10:24:28,127 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:24:28,147 INFO L225 Difference]: With dead ends: 39301 [2024-12-02 10:24:28,147 INFO L226 Difference]: Without dead ends: 29434 [2024-12-02 10:24:28,157 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2024-12-02 10:24:28,157 INFO L435 NwaCegarLoop]: 3155 mSDtfsCounter, 3212 mSDsluCounter, 12888 mSDsCounter, 0 mSdLazyCounter, 924 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3219 SdHoareTripleChecker+Valid, 16043 SdHoareTripleChecker+Invalid, 931 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 924 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-12-02 10:24:28,157 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3219 Valid, 16043 Invalid, 931 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 924 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-12-02 10:24:28,169 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29434 states. [2024-12-02 10:24:28,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29434 to 17066. [2024-12-02 10:24:28,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17066 states, 16722 states have (on average 1.395646453773472) internal successors, (23338), 16722 states have internal predecessors, (23338), 342 states have call successors, (342), 1 states have call predecessors, (342), 1 states have return successors, (342), 342 states have call predecessors, (342), 342 states have call successors, (342) [2024-12-02 10:24:28,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17066 states to 17066 states and 24022 transitions. [2024-12-02 10:24:28,450 INFO L78 Accepts]: Start accepts. Automaton has 17066 states and 24022 transitions. Word has length 824 [2024-12-02 10:24:28,450 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:24:28,450 INFO L471 AbstractCegarLoop]: Abstraction has 17066 states and 24022 transitions. [2024-12-02 10:24:28,451 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 70.375) internal successors, (563), 8 states have internal predecessors, (563), 3 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2024-12-02 10:24:28,451 INFO L276 IsEmpty]: Start isEmpty. Operand 17066 states and 24022 transitions. [2024-12-02 10:24:28,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 826 [2024-12-02 10:24:28,464 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:24:28,465 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:24:28,465 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable64 [2024-12-02 10:24:28,465 INFO L396 AbstractCegarLoop]: === Iteration 66 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:24:28,465 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:24:28,465 INFO L85 PathProgramCache]: Analyzing trace with hash 884764599, now seen corresponding path program 1 times [2024-12-02 10:24:28,466 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:24:28,466 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [184736458] [2024-12-02 10:24:28,466 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:24:28,466 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:24:34,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:24:36,847 INFO L134 CoverageAnalysis]: Checked inductivity of 627 backedges. 4 proven. 259 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-12-02 10:24:36,847 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:24:36,847 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [184736458] [2024-12-02 10:24:36,847 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [184736458] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 10:24:36,847 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [713851334] [2024-12-02 10:24:36,847 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:24:36,847 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 10:24:36,848 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a70003ac-7918-4afc-bf60-f5b65c90ed47/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 10:24:36,849 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a70003ac-7918-4afc-bf60-f5b65c90ed47/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 10:24:36,850 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a70003ac-7918-4afc-bf60-f5b65c90ed47/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-12-02 10:24:40,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:24:40,140 INFO L256 TraceCheckSpWp]: Trace formula consists of 4360 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-12-02 10:24:40,148 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:24:40,205 INFO L134 CoverageAnalysis]: Checked inductivity of 627 backedges. 222 proven. 0 refuted. 0 times theorem prover too weak. 405 trivial. 0 not checked. [2024-12-02 10:24:40,205 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 10:24:40,205 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [713851334] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:24:40,205 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 10:24:40,205 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [10] total 14 [2024-12-02 10:24:40,205 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [942281317] [2024-12-02 10:24:40,205 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:24:40,206 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 10:24:40,206 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:24:40,206 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 10:24:40,207 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2024-12-02 10:24:40,207 INFO L87 Difference]: Start difference. First operand 17066 states and 24022 transitions. Second operand has 6 states, 5 states have (on average 138.6) internal successors, (693), 6 states have internal predecessors, (693), 2 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-12-02 10:24:40,470 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:24:40,470 INFO L93 Difference]: Finished difference Result 28577 states and 40548 transitions. [2024-12-02 10:24:40,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 10:24:40,470 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 138.6) internal successors, (693), 6 states have internal predecessors, (693), 2 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 825 [2024-12-02 10:24:40,471 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:24:40,485 INFO L225 Difference]: With dead ends: 28577 [2024-12-02 10:24:40,485 INFO L226 Difference]: Without dead ends: 17066 [2024-12-02 10:24:40,495 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 835 GetRequests, 823 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2024-12-02 10:24:40,495 INFO L435 NwaCegarLoop]: 1311 mSDtfsCounter, 0 mSDsluCounter, 5217 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 6528 SdHoareTripleChecker+Invalid, 67 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 10:24:40,495 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 6528 Invalid, 67 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 10:24:40,503 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17066 states. [2024-12-02 10:24:40,744 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17066 to 17066. [2024-12-02 10:24:40,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17066 states, 16722 states have (on average 1.3942112187537377) internal successors, (23314), 16722 states have internal predecessors, (23314), 342 states have call successors, (342), 1 states have call predecessors, (342), 1 states have return successors, (342), 342 states have call predecessors, (342), 342 states have call successors, (342) [2024-12-02 10:24:40,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17066 states to 17066 states and 23998 transitions. [2024-12-02 10:24:40,775 INFO L78 Accepts]: Start accepts. Automaton has 17066 states and 23998 transitions. Word has length 825 [2024-12-02 10:24:40,775 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:24:40,775 INFO L471 AbstractCegarLoop]: Abstraction has 17066 states and 23998 transitions. [2024-12-02 10:24:40,775 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 138.6) internal successors, (693), 6 states have internal predecessors, (693), 2 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-12-02 10:24:40,775 INFO L276 IsEmpty]: Start isEmpty. Operand 17066 states and 23998 transitions. [2024-12-02 10:24:40,791 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 828 [2024-12-02 10:24:40,791 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:24:40,791 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:24:40,816 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a70003ac-7918-4afc-bf60-f5b65c90ed47/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-12-02 10:24:40,992 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable65,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a70003ac-7918-4afc-bf60-f5b65c90ed47/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 10:24:40,992 INFO L396 AbstractCegarLoop]: === Iteration 67 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:24:40,992 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:24:40,992 INFO L85 PathProgramCache]: Analyzing trace with hash -1254059775, now seen corresponding path program 1 times [2024-12-02 10:24:40,993 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:24:40,993 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [296541050] [2024-12-02 10:24:40,993 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:24:40,993 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:24:47,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:24:49,496 INFO L134 CoverageAnalysis]: Checked inductivity of 626 backedges. 261 proven. 1 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-12-02 10:24:49,496 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:24:49,496 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [296541050] [2024-12-02 10:24:49,496 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [296541050] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 10:24:49,496 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [625049384] [2024-12-02 10:24:49,497 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:24:49,497 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 10:24:49,497 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a70003ac-7918-4afc-bf60-f5b65c90ed47/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 10:24:49,498 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a70003ac-7918-4afc-bf60-f5b65c90ed47/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 10:24:49,499 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a70003ac-7918-4afc-bf60-f5b65c90ed47/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-12-02 10:24:53,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:24:53,291 INFO L256 TraceCheckSpWp]: Trace formula consists of 4364 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-12-02 10:24:53,299 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:24:53,350 INFO L134 CoverageAnalysis]: Checked inductivity of 626 backedges. 442 proven. 0 refuted. 0 times theorem prover too weak. 184 trivial. 0 not checked. [2024-12-02 10:24:53,350 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 10:24:53,350 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [625049384] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:24:53,350 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 10:24:53,350 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [9] total 13 [2024-12-02 10:24:53,350 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1733914430] [2024-12-02 10:24:53,350 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:24:53,351 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 10:24:53,351 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:24:53,351 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 10:24:53,351 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2024-12-02 10:24:53,351 INFO L87 Difference]: Start difference. First operand 17066 states and 23998 transitions. Second operand has 6 states, 5 states have (on average 148.8) internal successors, (744), 6 states have internal predecessors, (744), 3 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) [2024-12-02 10:24:53,616 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:24:53,616 INFO L93 Difference]: Finished difference Result 32369 states and 45520 transitions. [2024-12-02 10:24:53,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 10:24:53,617 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 148.8) internal successors, (744), 6 states have internal predecessors, (744), 3 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) Word has length 827 [2024-12-02 10:24:53,617 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:24:53,631 INFO L225 Difference]: With dead ends: 32369 [2024-12-02 10:24:53,631 INFO L226 Difference]: Without dead ends: 17066 [2024-12-02 10:24:53,641 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 835 GetRequests, 824 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2024-12-02 10:24:53,641 INFO L435 NwaCegarLoop]: 1308 mSDtfsCounter, 0 mSDsluCounter, 5209 mSDsCounter, 0 mSdLazyCounter, 64 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 6517 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 64 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 10:24:53,641 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 6517 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 64 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 10:24:53,649 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17066 states. [2024-12-02 10:24:53,910 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17066 to 17066. [2024-12-02 10:24:53,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17066 states, 16722 states have (on average 1.392058366224136) internal successors, (23278), 16722 states have internal predecessors, (23278), 342 states have call successors, (342), 1 states have call predecessors, (342), 1 states have return successors, (342), 342 states have call predecessors, (342), 342 states have call successors, (342) [2024-12-02 10:24:53,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17066 states to 17066 states and 23962 transitions. [2024-12-02 10:24:53,939 INFO L78 Accepts]: Start accepts. Automaton has 17066 states and 23962 transitions. Word has length 827 [2024-12-02 10:24:53,939 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:24:53,939 INFO L471 AbstractCegarLoop]: Abstraction has 17066 states and 23962 transitions. [2024-12-02 10:24:53,940 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 148.8) internal successors, (744), 6 states have internal predecessors, (744), 3 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) [2024-12-02 10:24:53,940 INFO L276 IsEmpty]: Start isEmpty. Operand 17066 states and 23962 transitions. [2024-12-02 10:24:53,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 828 [2024-12-02 10:24:53,955 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:24:53,955 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:24:53,980 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a70003ac-7918-4afc-bf60-f5b65c90ed47/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-12-02 10:24:54,155 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable66,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a70003ac-7918-4afc-bf60-f5b65c90ed47/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 10:24:54,156 INFO L396 AbstractCegarLoop]: === Iteration 68 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:24:54,156 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:24:54,156 INFO L85 PathProgramCache]: Analyzing trace with hash -1471207999, now seen corresponding path program 1 times [2024-12-02 10:24:54,156 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:24:54,156 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [294852805] [2024-12-02 10:24:54,157 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:24:54,157 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:25:00,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:25:02,960 INFO L134 CoverageAnalysis]: Checked inductivity of 626 backedges. 87 proven. 0 refuted. 0 times theorem prover too weak. 539 trivial. 0 not checked. [2024-12-02 10:25:02,960 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:25:02,960 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [294852805] [2024-12-02 10:25:02,960 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [294852805] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:25:02,960 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:25:02,960 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-12-02 10:25:02,960 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1167202880] [2024-12-02 10:25:02,960 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:25:02,961 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-12-02 10:25:02,961 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:25:02,961 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-12-02 10:25:02,961 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2024-12-02 10:25:02,961 INFO L87 Difference]: Start difference. First operand 17066 states and 23962 transitions. Second operand has 10 states, 10 states have (on average 58.8) internal successors, (588), 10 states have internal predecessors, (588), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-12-02 10:25:04,109 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:25:04,109 INFO L93 Difference]: Finished difference Result 50911 states and 71858 transitions. [2024-12-02 10:25:04,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-12-02 10:25:04,110 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 58.8) internal successors, (588), 10 states have internal predecessors, (588), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 827 [2024-12-02 10:25:04,110 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:25:04,136 INFO L225 Difference]: With dead ends: 50911 [2024-12-02 10:25:04,136 INFO L226 Difference]: Without dead ends: 39560 [2024-12-02 10:25:04,145 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=76, Invalid=196, Unknown=0, NotChecked=0, Total=272 [2024-12-02 10:25:04,146 INFO L435 NwaCegarLoop]: 3180 mSDtfsCounter, 5205 mSDsluCounter, 17430 mSDsCounter, 0 mSdLazyCounter, 771 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5219 SdHoareTripleChecker+Valid, 20610 SdHoareTripleChecker+Invalid, 788 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 771 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-12-02 10:25:04,146 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5219 Valid, 20610 Invalid, 788 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 771 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-12-02 10:25:04,160 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39560 states. [2024-12-02 10:25:04,551 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39560 to 19926. [2024-12-02 10:25:04,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19926 states, 19446 states have (on average 1.380952380952381) internal successors, (26854), 19446 states have internal predecessors, (26854), 478 states have call successors, (478), 1 states have call predecessors, (478), 1 states have return successors, (478), 478 states have call predecessors, (478), 478 states have call successors, (478) [2024-12-02 10:25:04,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19926 states to 19926 states and 27810 transitions. [2024-12-02 10:25:04,586 INFO L78 Accepts]: Start accepts. Automaton has 19926 states and 27810 transitions. Word has length 827 [2024-12-02 10:25:04,587 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:25:04,587 INFO L471 AbstractCegarLoop]: Abstraction has 19926 states and 27810 transitions. [2024-12-02 10:25:04,587 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 58.8) internal successors, (588), 10 states have internal predecessors, (588), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-12-02 10:25:04,587 INFO L276 IsEmpty]: Start isEmpty. Operand 19926 states and 27810 transitions. [2024-12-02 10:25:04,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 828 [2024-12-02 10:25:04,605 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:25:04,605 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:25:04,605 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable67 [2024-12-02 10:25:04,605 INFO L396 AbstractCegarLoop]: === Iteration 69 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:25:04,606 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:25:04,606 INFO L85 PathProgramCache]: Analyzing trace with hash -61893791, now seen corresponding path program 1 times [2024-12-02 10:25:04,606 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:25:04,606 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [341448168] [2024-12-02 10:25:04,606 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:25:04,606 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:25:10,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:25:12,798 INFO L134 CoverageAnalysis]: Checked inductivity of 624 backedges. 259 proven. 1 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-12-02 10:25:12,798 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:25:12,799 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [341448168] [2024-12-02 10:25:12,799 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [341448168] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 10:25:12,799 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1163316880] [2024-12-02 10:25:12,799 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:25:12,799 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 10:25:12,799 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a70003ac-7918-4afc-bf60-f5b65c90ed47/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 10:25:12,800 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a70003ac-7918-4afc-bf60-f5b65c90ed47/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 10:25:12,801 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a70003ac-7918-4afc-bf60-f5b65c90ed47/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-12-02 10:25:16,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:25:16,404 INFO L256 TraceCheckSpWp]: Trace formula consists of 4364 conjuncts, 44 conjuncts are in the unsatisfiable core [2024-12-02 10:25:16,419 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:25:17,681 INFO L134 CoverageAnalysis]: Checked inductivity of 624 backedges. 292 proven. 64 refuted. 0 times theorem prover too weak. 268 trivial. 0 not checked. [2024-12-02 10:25:17,681 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 10:25:19,016 INFO L134 CoverageAnalysis]: Checked inductivity of 624 backedges. 196 proven. 64 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-12-02 10:25:19,017 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1163316880] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 10:25:19,017 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 10:25:19,017 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 13, 10] total 22 [2024-12-02 10:25:19,017 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [199199946] [2024-12-02 10:25:19,017 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 10:25:19,018 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-12-02 10:25:19,018 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:25:19,019 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-12-02 10:25:19,019 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=89, Invalid=373, Unknown=0, NotChecked=0, Total=462 [2024-12-02 10:25:19,019 INFO L87 Difference]: Start difference. First operand 19926 states and 27810 transitions. Second operand has 22 states, 22 states have (on average 74.45454545454545) internal successors, (1638), 22 states have internal predecessors, (1638), 10 states have call successors, (35), 2 states have call predecessors, (35), 2 states have return successors, (35), 10 states have call predecessors, (35), 10 states have call successors, (35) [2024-12-02 10:25:23,010 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:25:23,010 INFO L93 Difference]: Finished difference Result 36260 states and 51184 transitions. [2024-12-02 10:25:23,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-12-02 10:25:23,011 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 74.45454545454545) internal successors, (1638), 22 states have internal predecessors, (1638), 10 states have call successors, (35), 2 states have call predecessors, (35), 2 states have return successors, (35), 10 states have call predecessors, (35), 10 states have call successors, (35) Word has length 827 [2024-12-02 10:25:23,011 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:25:23,034 INFO L225 Difference]: With dead ends: 36260 [2024-12-02 10:25:23,034 INFO L226 Difference]: Without dead ends: 29735 [2024-12-02 10:25:23,044 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 1672 GetRequests, 1641 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 221 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=206, Invalid=850, Unknown=0, NotChecked=0, Total=1056 [2024-12-02 10:25:23,044 INFO L435 NwaCegarLoop]: 1814 mSDtfsCounter, 7377 mSDsluCounter, 18401 mSDsCounter, 0 mSdLazyCounter, 7167 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7391 SdHoareTripleChecker+Valid, 20215 SdHoareTripleChecker+Invalid, 7193 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 7167 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2024-12-02 10:25:23,044 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [7391 Valid, 20215 Invalid, 7193 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [26 Valid, 7167 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2024-12-02 10:25:23,058 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29735 states. [2024-12-02 10:25:23,489 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29735 to 21015. [2024-12-02 10:25:23,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21015 states, 20485 states have (on average 1.377886258237735) internal successors, (28226), 20485 states have internal predecessors, (28226), 528 states have call successors, (528), 1 states have call predecessors, (528), 1 states have return successors, (528), 528 states have call predecessors, (528), 528 states have call successors, (528) [2024-12-02 10:25:23,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21015 states to 21015 states and 29282 transitions. [2024-12-02 10:25:23,524 INFO L78 Accepts]: Start accepts. Automaton has 21015 states and 29282 transitions. Word has length 827 [2024-12-02 10:25:23,525 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:25:23,525 INFO L471 AbstractCegarLoop]: Abstraction has 21015 states and 29282 transitions. [2024-12-02 10:25:23,525 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 74.45454545454545) internal successors, (1638), 22 states have internal predecessors, (1638), 10 states have call successors, (35), 2 states have call predecessors, (35), 2 states have return successors, (35), 10 states have call predecessors, (35), 10 states have call successors, (35) [2024-12-02 10:25:23,525 INFO L276 IsEmpty]: Start isEmpty. Operand 21015 states and 29282 transitions. [2024-12-02 10:25:23,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 829 [2024-12-02 10:25:23,543 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:25:23,544 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:25:23,569 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a70003ac-7918-4afc-bf60-f5b65c90ed47/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-12-02 10:25:23,744 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable68,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a70003ac-7918-4afc-bf60-f5b65c90ed47/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 10:25:23,744 INFO L396 AbstractCegarLoop]: === Iteration 70 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:25:23,744 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:25:23,745 INFO L85 PathProgramCache]: Analyzing trace with hash -1115016698, now seen corresponding path program 1 times [2024-12-02 10:25:23,745 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:25:23,745 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1455605158] [2024-12-02 10:25:23,745 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:25:23,745 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:25:30,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:25:33,209 INFO L134 CoverageAnalysis]: Checked inductivity of 624 backedges. 196 proven. 64 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-12-02 10:25:33,209 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:25:33,209 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1455605158] [2024-12-02 10:25:33,209 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1455605158] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 10:25:33,209 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2106973487] [2024-12-02 10:25:33,209 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:25:33,209 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 10:25:33,209 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a70003ac-7918-4afc-bf60-f5b65c90ed47/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 10:25:33,211 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a70003ac-7918-4afc-bf60-f5b65c90ed47/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 10:25:33,211 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a70003ac-7918-4afc-bf60-f5b65c90ed47/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-12-02 10:25:37,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:25:37,891 INFO L256 TraceCheckSpWp]: Trace formula consists of 4367 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-12-02 10:25:37,901 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:25:38,317 INFO L134 CoverageAnalysis]: Checked inductivity of 624 backedges. 240 proven. 20 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-12-02 10:25:38,317 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 10:25:38,889 INFO L134 CoverageAnalysis]: Checked inductivity of 624 backedges. 260 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-12-02 10:25:38,889 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2106973487] provided 1 perfect and 1 imperfect interpolant sequences [2024-12-02 10:25:38,889 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-12-02 10:25:38,890 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [9, 8] total 20 [2024-12-02 10:25:38,890 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1977099089] [2024-12-02 10:25:38,890 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:25:38,891 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 10:25:38,891 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:25:38,892 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 10:25:38,892 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=334, Unknown=0, NotChecked=0, Total=380 [2024-12-02 10:25:38,892 INFO L87 Difference]: Start difference. First operand 21015 states and 29282 transitions. Second operand has 7 states, 7 states have (on average 108.71428571428571) internal successors, (761), 7 states have internal predecessors, (761), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-12-02 10:25:39,330 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:25:39,330 INFO L93 Difference]: Finished difference Result 36253 states and 50857 transitions. [2024-12-02 10:25:39,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-02 10:25:39,331 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 108.71428571428571) internal successors, (761), 7 states have internal predecessors, (761), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 828 [2024-12-02 10:25:39,332 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:25:39,354 INFO L225 Difference]: With dead ends: 36253 [2024-12-02 10:25:39,354 INFO L226 Difference]: Without dead ends: 28639 [2024-12-02 10:25:39,364 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 1666 GetRequests, 1646 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=55, Invalid=407, Unknown=0, NotChecked=0, Total=462 [2024-12-02 10:25:39,364 INFO L435 NwaCegarLoop]: 2354 mSDtfsCounter, 840 mSDsluCounter, 10703 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 840 SdHoareTripleChecker+Valid, 13057 SdHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 10:25:39,365 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [840 Valid, 13057 Invalid, 79 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 78 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 10:25:39,377 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28639 states. [2024-12-02 10:25:39,795 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28639 to 27959. [2024-12-02 10:25:39,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27959 states, 27309 states have (on average 1.383792888791241) internal successors, (37790), 27309 states have internal predecessors, (37790), 648 states have call successors, (648), 1 states have call predecessors, (648), 1 states have return successors, (648), 648 states have call predecessors, (648), 648 states have call successors, (648) [2024-12-02 10:25:39,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27959 states to 27959 states and 39086 transitions. [2024-12-02 10:25:39,844 INFO L78 Accepts]: Start accepts. Automaton has 27959 states and 39086 transitions. Word has length 828 [2024-12-02 10:25:39,845 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:25:39,845 INFO L471 AbstractCegarLoop]: Abstraction has 27959 states and 39086 transitions. [2024-12-02 10:25:39,845 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 108.71428571428571) internal successors, (761), 7 states have internal predecessors, (761), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-12-02 10:25:39,845 INFO L276 IsEmpty]: Start isEmpty. Operand 27959 states and 39086 transitions. [2024-12-02 10:25:39,870 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 829 [2024-12-02 10:25:39,870 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:25:39,870 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:25:39,896 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a70003ac-7918-4afc-bf60-f5b65c90ed47/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-12-02 10:25:40,071 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a70003ac-7918-4afc-bf60-f5b65c90ed47/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable69 [2024-12-02 10:25:40,071 INFO L396 AbstractCegarLoop]: === Iteration 71 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:25:40,071 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:25:40,071 INFO L85 PathProgramCache]: Analyzing trace with hash -1038889644, now seen corresponding path program 1 times [2024-12-02 10:25:40,071 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:25:40,071 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1272083210] [2024-12-02 10:25:40,071 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:25:40,072 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:25:40,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:25:41,446 INFO L134 CoverageAnalysis]: Checked inductivity of 623 backedges. 176 proven. 0 refuted. 0 times theorem prover too weak. 447 trivial. 0 not checked. [2024-12-02 10:25:41,446 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:25:41,446 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1272083210] [2024-12-02 10:25:41,446 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1272083210] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:25:41,446 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:25:41,447 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 10:25:41,447 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1236446781] [2024-12-02 10:25:41,447 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:25:41,448 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 10:25:41,448 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:25:41,449 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 10:25:41,449 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 10:25:41,449 INFO L87 Difference]: Start difference. First operand 27959 states and 39086 transitions. Second operand has 5 states, 5 states have (on average 139.2) internal successors, (696), 5 states have internal predecessors, (696), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2024-12-02 10:25:41,791 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:25:41,791 INFO L93 Difference]: Finished difference Result 45591 states and 64116 transitions. [2024-12-02 10:25:41,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 10:25:41,792 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 139.2) internal successors, (696), 5 states have internal predecessors, (696), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 828 [2024-12-02 10:25:41,792 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:25:41,817 INFO L225 Difference]: With dead ends: 45591 [2024-12-02 10:25:41,817 INFO L226 Difference]: Without dead ends: 28407 [2024-12-02 10:25:41,832 INFO L434 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 [2024-12-02 10:25:41,832 INFO L435 NwaCegarLoop]: 1313 mSDtfsCounter, 16 mSDsluCounter, 3927 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 5240 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 10:25:41,832 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 5240 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 10:25:41,845 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28407 states. [2024-12-02 10:25:42,330 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28407 to 28407. [2024-12-02 10:25:42,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28407 states, 27757 states have (on average 1.3840832943041395) internal successors, (38418), 27757 states have internal predecessors, (38418), 648 states have call successors, (648), 1 states have call predecessors, (648), 1 states have return successors, (648), 648 states have call predecessors, (648), 648 states have call successors, (648) [2024-12-02 10:25:42,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28407 states to 28407 states and 39714 transitions. [2024-12-02 10:25:42,377 INFO L78 Accepts]: Start accepts. Automaton has 28407 states and 39714 transitions. Word has length 828 [2024-12-02 10:25:42,377 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:25:42,377 INFO L471 AbstractCegarLoop]: Abstraction has 28407 states and 39714 transitions. [2024-12-02 10:25:42,377 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 139.2) internal successors, (696), 5 states have internal predecessors, (696), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2024-12-02 10:25:42,377 INFO L276 IsEmpty]: Start isEmpty. Operand 28407 states and 39714 transitions. [2024-12-02 10:25:42,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 830 [2024-12-02 10:25:42,400 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:25:42,401 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:25:42,401 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable70 [2024-12-02 10:25:42,401 INFO L396 AbstractCegarLoop]: === Iteration 72 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:25:42,401 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:25:42,401 INFO L85 PathProgramCache]: Analyzing trace with hash 908415758, now seen corresponding path program 1 times [2024-12-02 10:25:42,401 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:25:42,401 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2006025378] [2024-12-02 10:25:42,402 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:25:42,402 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:25:49,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:25:52,170 INFO L134 CoverageAnalysis]: Checked inductivity of 624 backedges. 4 proven. 256 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-12-02 10:25:52,170 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:25:52,170 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2006025378] [2024-12-02 10:25:52,170 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2006025378] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 10:25:52,171 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [416424000] [2024-12-02 10:25:52,171 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:25:52,171 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 10:25:52,171 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a70003ac-7918-4afc-bf60-f5b65c90ed47/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 10:25:52,172 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a70003ac-7918-4afc-bf60-f5b65c90ed47/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 10:25:52,173 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a70003ac-7918-4afc-bf60-f5b65c90ed47/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-12-02 10:25:55,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:25:55,821 INFO L256 TraceCheckSpWp]: Trace formula consists of 4370 conjuncts, 106 conjuncts are in the unsatisfiable core [2024-12-02 10:25:55,834 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:26:02,661 INFO L134 CoverageAnalysis]: Checked inductivity of 624 backedges. 456 proven. 0 refuted. 0 times theorem prover too weak. 168 trivial. 0 not checked. [2024-12-02 10:26:02,661 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 10:26:02,661 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [416424000] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:26:02,661 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 10:26:02,662 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [10] total 24 [2024-12-02 10:26:02,662 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1780314568] [2024-12-02 10:26:02,662 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:26:02,662 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-12-02 10:26:02,662 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:26:02,663 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-12-02 10:26:02,663 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=489, Unknown=0, NotChecked=0, Total=552 [2024-12-02 10:26:02,663 INFO L87 Difference]: Start difference. First operand 28407 states and 39714 transitions. Second operand has 16 states, 16 states have (on average 47.8125) internal successors, (765), 16 states have internal predecessors, (765), 3 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2024-12-02 10:26:07,987 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:26:07,988 INFO L93 Difference]: Finished difference Result 95871 states and 134682 transitions. [2024-12-02 10:26:07,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-12-02 10:26:07,988 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 47.8125) internal successors, (765), 16 states have internal predecessors, (765), 3 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 829 [2024-12-02 10:26:07,989 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:26:08,044 INFO L225 Difference]: With dead ends: 95871 [2024-12-02 10:26:08,044 INFO L226 Difference]: Without dead ends: 76503 [2024-12-02 10:26:08,062 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 847 GetRequests, 817 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 187 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=112, Invalid=880, Unknown=0, NotChecked=0, Total=992 [2024-12-02 10:26:08,063 INFO L435 NwaCegarLoop]: 1284 mSDtfsCounter, 5164 mSDsluCounter, 14460 mSDsCounter, 0 mSdLazyCounter, 6960 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5177 SdHoareTripleChecker+Valid, 15744 SdHoareTripleChecker+Invalid, 6973 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 6960 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2024-12-02 10:26:08,063 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5177 Valid, 15744 Invalid, 6973 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 6960 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time] [2024-12-02 10:26:08,097 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76503 states. [2024-12-02 10:26:09,036 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76503 to 52705. [2024-12-02 10:26:09,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52705 states, 51543 states have (on average 1.3872688822924548) internal successors, (71504), 51543 states have internal predecessors, (71504), 1160 states have call successors, (1160), 1 states have call predecessors, (1160), 1 states have return successors, (1160), 1160 states have call predecessors, (1160), 1160 states have call successors, (1160) [2024-12-02 10:26:09,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52705 states to 52705 states and 73824 transitions. [2024-12-02 10:26:09,129 INFO L78 Accepts]: Start accepts. Automaton has 52705 states and 73824 transitions. Word has length 829 [2024-12-02 10:26:09,129 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:26:09,129 INFO L471 AbstractCegarLoop]: Abstraction has 52705 states and 73824 transitions. [2024-12-02 10:26:09,130 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 47.8125) internal successors, (765), 16 states have internal predecessors, (765), 3 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2024-12-02 10:26:09,130 INFO L276 IsEmpty]: Start isEmpty. Operand 52705 states and 73824 transitions. [2024-12-02 10:26:09,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 831 [2024-12-02 10:26:09,178 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:26:09,178 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:26:09,204 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a70003ac-7918-4afc-bf60-f5b65c90ed47/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-12-02 10:26:09,379 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable71,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a70003ac-7918-4afc-bf60-f5b65c90ed47/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 10:26:09,379 INFO L396 AbstractCegarLoop]: === Iteration 73 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:26:09,379 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:26:09,379 INFO L85 PathProgramCache]: Analyzing trace with hash 807727003, now seen corresponding path program 1 times [2024-12-02 10:26:09,380 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:26:09,380 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [441294582] [2024-12-02 10:26:09,380 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:26:09,380 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:26:09,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:26:10,767 INFO L134 CoverageAnalysis]: Checked inductivity of 626 backedges. 89 proven. 0 refuted. 0 times theorem prover too weak. 537 trivial. 0 not checked. [2024-12-02 10:26:10,767 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:26:10,767 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [441294582] [2024-12-02 10:26:10,767 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [441294582] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:26:10,767 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:26:10,768 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 10:26:10,768 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1595594186] [2024-12-02 10:26:10,768 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:26:10,768 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 10:26:10,768 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:26:10,769 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 10:26:10,769 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-12-02 10:26:10,769 INFO L87 Difference]: Start difference. First operand 52705 states and 73824 transitions. Second operand has 6 states, 6 states have (on average 99.0) internal successors, (594), 6 states have internal predecessors, (594), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-12-02 10:26:12,109 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:26:12,109 INFO L93 Difference]: Finished difference Result 92107 states and 129856 transitions. [2024-12-02 10:26:12,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 10:26:12,110 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 99.0) internal successors, (594), 6 states have internal predecessors, (594), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 830 [2024-12-02 10:26:12,110 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:26:12,157 INFO L225 Difference]: With dead ends: 92107 [2024-12-02 10:26:12,157 INFO L226 Difference]: Without dead ends: 53089 [2024-12-02 10:26:12,186 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-12-02 10:26:12,187 INFO L435 NwaCegarLoop]: 1023 mSDtfsCounter, 1219 mSDsluCounter, 3026 mSDsCounter, 0 mSdLazyCounter, 1218 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1219 SdHoareTripleChecker+Valid, 4049 SdHoareTripleChecker+Invalid, 1219 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1218 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-12-02 10:26:12,187 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1219 Valid, 4049 Invalid, 1219 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1218 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-12-02 10:26:12,212 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53089 states. [2024-12-02 10:26:13,176 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53089 to 52897. [2024-12-02 10:26:13,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52897 states, 51735 states have (on average 1.3858316420218422) internal successors, (71696), 51735 states have internal predecessors, (71696), 1160 states have call successors, (1160), 1 states have call predecessors, (1160), 1 states have return successors, (1160), 1160 states have call predecessors, (1160), 1160 states have call successors, (1160) [2024-12-02 10:26:13,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52897 states to 52897 states and 74016 transitions. [2024-12-02 10:26:13,274 INFO L78 Accepts]: Start accepts. Automaton has 52897 states and 74016 transitions. Word has length 830 [2024-12-02 10:26:13,274 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:26:13,274 INFO L471 AbstractCegarLoop]: Abstraction has 52897 states and 74016 transitions. [2024-12-02 10:26:13,274 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 99.0) internal successors, (594), 6 states have internal predecessors, (594), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-12-02 10:26:13,274 INFO L276 IsEmpty]: Start isEmpty. Operand 52897 states and 74016 transitions. [2024-12-02 10:26:13,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 831 [2024-12-02 10:26:13,325 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:26:13,325 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:26:13,325 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable72 [2024-12-02 10:26:13,325 INFO L396 AbstractCegarLoop]: === Iteration 74 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:26:13,326 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:26:13,326 INFO L85 PathProgramCache]: Analyzing trace with hash -1543220529, now seen corresponding path program 1 times [2024-12-02 10:26:13,326 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:26:13,326 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [784734524] [2024-12-02 10:26:13,326 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:26:13,326 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:26:18,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:26:21,613 INFO L134 CoverageAnalysis]: Checked inductivity of 623 backedges. 196 proven. 63 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-12-02 10:26:21,613 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:26:21,613 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [784734524] [2024-12-02 10:26:21,613 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [784734524] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 10:26:21,613 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [925932196] [2024-12-02 10:26:21,613 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:26:21,613 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 10:26:21,613 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a70003ac-7918-4afc-bf60-f5b65c90ed47/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 10:26:21,615 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a70003ac-7918-4afc-bf60-f5b65c90ed47/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 10:26:21,616 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a70003ac-7918-4afc-bf60-f5b65c90ed47/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-12-02 10:26:25,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:26:25,822 INFO L256 TraceCheckSpWp]: Trace formula consists of 4373 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-12-02 10:26:25,829 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:26:25,882 INFO L134 CoverageAnalysis]: Checked inductivity of 623 backedges. 329 proven. 0 refuted. 0 times theorem prover too weak. 294 trivial. 0 not checked. [2024-12-02 10:26:25,882 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 10:26:25,882 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [925932196] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:26:25,882 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 10:26:25,883 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [9] total 13 [2024-12-02 10:26:25,883 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [280157138] [2024-12-02 10:26:25,883 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:26:25,884 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 10:26:25,884 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:26:25,885 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 10:26:25,885 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=131, Unknown=0, NotChecked=0, Total=156 [2024-12-02 10:26:25,885 INFO L87 Difference]: Start difference. First operand 52897 states and 74016 transitions. Second operand has 6 states, 5 states have (on average 144.0) internal successors, (720), 6 states have internal predecessors, (720), 3 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (10), 2 states have call predecessors, (10), 3 states have call successors, (10) [2024-12-02 10:26:26,720 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:26:26,720 INFO L93 Difference]: Finished difference Result 89159 states and 125286 transitions. [2024-12-02 10:26:26,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 10:26:26,720 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 144.0) internal successors, (720), 6 states have internal predecessors, (720), 3 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (10), 2 states have call predecessors, (10), 3 states have call successors, (10) Word has length 830 [2024-12-02 10:26:26,721 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:26:26,768 INFO L225 Difference]: With dead ends: 89159 [2024-12-02 10:26:26,768 INFO L226 Difference]: Without dead ends: 52897 [2024-12-02 10:26:26,796 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 838 GetRequests, 827 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=131, Unknown=0, NotChecked=0, Total=156 [2024-12-02 10:26:26,796 INFO L435 NwaCegarLoop]: 1309 mSDtfsCounter, 0 mSDsluCounter, 5209 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 6518 SdHoareTripleChecker+Invalid, 67 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 10:26:26,797 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 6518 Invalid, 67 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 10:26:26,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52897 states. [2024-12-02 10:26:27,756 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52897 to 52753. [2024-12-02 10:26:27,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52753 states, 51591 states have (on average 1.3825667267546664) internal successors, (71328), 51591 states have internal predecessors, (71328), 1160 states have call successors, (1160), 1 states have call predecessors, (1160), 1 states have return successors, (1160), 1160 states have call predecessors, (1160), 1160 states have call successors, (1160) [2024-12-02 10:26:27,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52753 states to 52753 states and 73648 transitions. [2024-12-02 10:26:27,850 INFO L78 Accepts]: Start accepts. Automaton has 52753 states and 73648 transitions. Word has length 830 [2024-12-02 10:26:27,850 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:26:27,851 INFO L471 AbstractCegarLoop]: Abstraction has 52753 states and 73648 transitions. [2024-12-02 10:26:27,851 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 144.0) internal successors, (720), 6 states have internal predecessors, (720), 3 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (10), 2 states have call predecessors, (10), 3 states have call successors, (10) [2024-12-02 10:26:27,851 INFO L276 IsEmpty]: Start isEmpty. Operand 52753 states and 73648 transitions. [2024-12-02 10:26:27,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 831 [2024-12-02 10:26:27,904 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:26:27,904 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:26:27,931 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a70003ac-7918-4afc-bf60-f5b65c90ed47/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2024-12-02 10:26:28,104 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable73,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a70003ac-7918-4afc-bf60-f5b65c90ed47/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 10:26:28,104 INFO L396 AbstractCegarLoop]: === Iteration 75 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:26:28,105 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:26:28,105 INFO L85 PathProgramCache]: Analyzing trace with hash -810947473, now seen corresponding path program 1 times [2024-12-02 10:26:28,105 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:26:28,105 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1679443042] [2024-12-02 10:26:28,105 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:26:28,105 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:26:38,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:26:42,129 INFO L134 CoverageAnalysis]: Checked inductivity of 625 backedges. 260 proven. 1 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-12-02 10:26:42,129 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:26:42,129 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1679443042] [2024-12-02 10:26:42,129 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1679443042] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 10:26:42,129 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1706192144] [2024-12-02 10:26:42,129 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:26:42,129 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 10:26:42,130 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a70003ac-7918-4afc-bf60-f5b65c90ed47/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 10:26:42,131 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a70003ac-7918-4afc-bf60-f5b65c90ed47/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 10:26:42,132 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a70003ac-7918-4afc-bf60-f5b65c90ed47/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-12-02 10:26:47,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:26:47,101 INFO L256 TraceCheckSpWp]: Trace formula consists of 4373 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-12-02 10:26:47,108 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:26:47,158 INFO L134 CoverageAnalysis]: Checked inductivity of 625 backedges. 224 proven. 0 refuted. 0 times theorem prover too weak. 401 trivial. 0 not checked. [2024-12-02 10:26:47,159 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 10:26:47,159 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1706192144] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:26:47,159 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 10:26:47,159 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [9] total 13 [2024-12-02 10:26:47,159 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1458018447] [2024-12-02 10:26:47,159 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:26:47,160 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 10:26:47,160 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:26:47,160 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 10:26:47,160 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2024-12-02 10:26:47,160 INFO L87 Difference]: Start difference. First operand 52753 states and 73648 transitions. Second operand has 6 states, 5 states have (on average 115.2) internal successors, (576), 6 states have internal predecessors, (576), 3 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (11), 2 states have call predecessors, (11), 3 states have call successors, (11) [2024-12-02 10:26:48,298 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:26:48,298 INFO L93 Difference]: Finished difference Result 96759 states and 135616 transitions. [2024-12-02 10:26:48,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 10:26:48,299 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 115.2) internal successors, (576), 6 states have internal predecessors, (576), 3 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (11), 2 states have call predecessors, (11), 3 states have call successors, (11) Word has length 830 [2024-12-02 10:26:48,299 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:26:48,343 INFO L225 Difference]: With dead ends: 96759 [2024-12-02 10:26:48,343 INFO L226 Difference]: Without dead ends: 52753 [2024-12-02 10:26:48,367 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 838 GetRequests, 827 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2024-12-02 10:26:48,367 INFO L435 NwaCegarLoop]: 1306 mSDtfsCounter, 0 mSDsluCounter, 5201 mSDsCounter, 0 mSdLazyCounter, 64 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 6507 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 64 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 10:26:48,367 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 6507 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 64 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 10:26:48,390 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52753 states. [2024-12-02 10:26:49,371 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52753 to 52753. [2024-12-02 10:26:49,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52753 states, 51591 states have (on average 1.3766742261247116) internal successors, (71024), 51591 states have internal predecessors, (71024), 1160 states have call successors, (1160), 1 states have call predecessors, (1160), 1 states have return successors, (1160), 1160 states have call predecessors, (1160), 1160 states have call successors, (1160) [2024-12-02 10:26:49,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52753 states to 52753 states and 73344 transitions. [2024-12-02 10:26:49,470 INFO L78 Accepts]: Start accepts. Automaton has 52753 states and 73344 transitions. Word has length 830 [2024-12-02 10:26:49,470 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:26:49,470 INFO L471 AbstractCegarLoop]: Abstraction has 52753 states and 73344 transitions. [2024-12-02 10:26:49,470 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 115.2) internal successors, (576), 6 states have internal predecessors, (576), 3 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (11), 2 states have call predecessors, (11), 3 states have call successors, (11) [2024-12-02 10:26:49,471 INFO L276 IsEmpty]: Start isEmpty. Operand 52753 states and 73344 transitions. [2024-12-02 10:26:49,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 833 [2024-12-02 10:26:49,521 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:26:49,521 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:26:49,549 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a70003ac-7918-4afc-bf60-f5b65c90ed47/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2024-12-02 10:26:49,722 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a70003ac-7918-4afc-bf60-f5b65c90ed47/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable74 [2024-12-02 10:26:49,722 INFO L396 AbstractCegarLoop]: === Iteration 76 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:26:49,722 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:26:49,722 INFO L85 PathProgramCache]: Analyzing trace with hash 681686905, now seen corresponding path program 1 times [2024-12-02 10:26:49,722 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:26:49,722 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1171797673] [2024-12-02 10:26:49,723 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:26:49,723 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:26:56,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:26:59,428 INFO L134 CoverageAnalysis]: Checked inductivity of 626 backedges. 196 proven. 66 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-12-02 10:26:59,429 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:26:59,429 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1171797673] [2024-12-02 10:26:59,429 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1171797673] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 10:26:59,429 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [509185399] [2024-12-02 10:26:59,429 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:26:59,429 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 10:26:59,429 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a70003ac-7918-4afc-bf60-f5b65c90ed47/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 10:26:59,431 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a70003ac-7918-4afc-bf60-f5b65c90ed47/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 10:26:59,432 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a70003ac-7918-4afc-bf60-f5b65c90ed47/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-12-02 10:27:04,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:27:04,278 INFO L256 TraceCheckSpWp]: Trace formula consists of 4379 conjuncts, 104 conjuncts are in the unsatisfiable core [2024-12-02 10:27:04,292 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:27:07,708 INFO L134 CoverageAnalysis]: Checked inductivity of 626 backedges. 240 proven. 74 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-12-02 10:27:07,709 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 10:27:12,302 INFO L134 CoverageAnalysis]: Checked inductivity of 626 backedges. 186 proven. 76 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-12-02 10:27:12,302 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [509185399] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 10:27:12,302 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 10:27:12,302 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 17, 15] total 37 [2024-12-02 10:27:12,302 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [775941905] [2024-12-02 10:27:12,302 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 10:27:12,304 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 37 states [2024-12-02 10:27:12,304 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:27:12,305 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2024-12-02 10:27:12,305 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=169, Invalid=1163, Unknown=0, NotChecked=0, Total=1332 [2024-12-02 10:27:12,305 INFO L87 Difference]: Start difference. First operand 52753 states and 73344 transitions. Second operand has 37 states, 37 states have (on average 51.54054054054054) internal successors, (1907), 37 states have internal predecessors, (1907), 10 states have call successors, (41), 2 states have call predecessors, (41), 2 states have return successors, (41), 10 states have call predecessors, (41), 10 states have call successors, (41) [2024-12-02 10:27:41,242 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:27:41,242 INFO L93 Difference]: Finished difference Result 284185 states and 402183 transitions. [2024-12-02 10:27:41,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 109 states. [2024-12-02 10:27:41,243 INFO L78 Accepts]: Start accepts. Automaton has has 37 states, 37 states have (on average 51.54054054054054) internal successors, (1907), 37 states have internal predecessors, (1907), 10 states have call successors, (41), 2 states have call predecessors, (41), 2 states have return successors, (41), 10 states have call predecessors, (41), 10 states have call successors, (41) Word has length 832 [2024-12-02 10:27:41,244 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:27:41,433 INFO L225 Difference]: With dead ends: 284185 [2024-12-02 10:27:41,433 INFO L226 Difference]: Without dead ends: 254883 [2024-12-02 10:27:41,466 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 1778 GetRequests, 1636 SyntacticMatches, 0 SemanticMatches, 142 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5967 ImplicationChecksByTransitivity, 4.7s TimeCoverageRelationStatistics Valid=2523, Invalid=18069, Unknown=0, NotChecked=0, Total=20592 [2024-12-02 10:27:41,467 INFO L435 NwaCegarLoop]: 5066 mSDtfsCounter, 27986 mSDsluCounter, 91789 mSDsCounter, 0 mSdLazyCounter, 37505 mSolverCounterSat, 121 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27986 SdHoareTripleChecker+Valid, 96855 SdHoareTripleChecker+Invalid, 37626 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.3s SdHoareTripleChecker+Time, 121 IncrementalHoareTripleChecker+Valid, 37505 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 20.7s IncrementalHoareTripleChecker+Time [2024-12-02 10:27:41,467 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [27986 Valid, 96855 Invalid, 37626 Unknown, 0 Unchecked, 0.3s Time], IncrementalHoareTripleChecker [121 Valid, 37505 Invalid, 0 Unknown, 0 Unchecked, 20.7s Time] [2024-12-02 10:27:41,560 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 254883 states. [2024-12-02 10:27:43,665 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 254883 to 65073. [2024-12-02 10:27:43,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65073 states, 63399 states have (on average 1.3660783293111878) internal successors, (86608), 63399 states have internal predecessors, (86608), 1672 states have call successors, (1672), 1 states have call predecessors, (1672), 1 states have return successors, (1672), 1672 states have call predecessors, (1672), 1672 states have call successors, (1672) [2024-12-02 10:27:43,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65073 states to 65073 states and 89952 transitions. [2024-12-02 10:27:43,799 INFO L78 Accepts]: Start accepts. Automaton has 65073 states and 89952 transitions. Word has length 832 [2024-12-02 10:27:43,800 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:27:43,800 INFO L471 AbstractCegarLoop]: Abstraction has 65073 states and 89952 transitions. [2024-12-02 10:27:43,800 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 37 states, 37 states have (on average 51.54054054054054) internal successors, (1907), 37 states have internal predecessors, (1907), 10 states have call successors, (41), 2 states have call predecessors, (41), 2 states have return successors, (41), 10 states have call predecessors, (41), 10 states have call successors, (41) [2024-12-02 10:27:43,801 INFO L276 IsEmpty]: Start isEmpty. Operand 65073 states and 89952 transitions. [2024-12-02 10:27:43,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 835 [2024-12-02 10:27:43,860 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:27:43,861 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:27:43,890 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a70003ac-7918-4afc-bf60-f5b65c90ed47/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2024-12-02 10:27:44,061 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a70003ac-7918-4afc-bf60-f5b65c90ed47/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable75 [2024-12-02 10:27:44,061 INFO L396 AbstractCegarLoop]: === Iteration 77 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:27:44,062 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:27:44,062 INFO L85 PathProgramCache]: Analyzing trace with hash -20174116, now seen corresponding path program 1 times [2024-12-02 10:27:44,062 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:27:44,062 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1396523373] [2024-12-02 10:27:44,062 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:27:44,062 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:27:55,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:27:56,553 INFO L134 CoverageAnalysis]: Checked inductivity of 633 backedges. 11 proven. 2 refuted. 0 times theorem prover too weak. 620 trivial. 0 not checked. [2024-12-02 10:27:56,553 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:27:56,553 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1396523373] [2024-12-02 10:27:56,553 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1396523373] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 10:27:56,553 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [570926479] [2024-12-02 10:27:56,553 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:27:56,553 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 10:27:56,554 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a70003ac-7918-4afc-bf60-f5b65c90ed47/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 10:27:56,555 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a70003ac-7918-4afc-bf60-f5b65c90ed47/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 10:27:56,557 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a70003ac-7918-4afc-bf60-f5b65c90ed47/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-12-02 10:28:01,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:28:01,596 INFO L256 TraceCheckSpWp]: Trace formula consists of 4381 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-12-02 10:28:01,604 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:28:02,410 INFO L134 CoverageAnalysis]: Checked inductivity of 633 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 620 trivial. 0 not checked. [2024-12-02 10:28:02,410 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 10:28:02,410 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [570926479] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:28:02,410 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 10:28:02,411 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [7] total 9 [2024-12-02 10:28:02,411 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [448283479] [2024-12-02 10:28:02,411 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:28:02,411 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 10:28:02,411 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:28:02,412 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 10:28:02,412 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-12-02 10:28:02,412 INFO L87 Difference]: Start difference. First operand 65073 states and 89952 transitions. Second operand has 7 states, 7 states have (on average 74.71428571428571) internal successors, (523), 7 states have internal predecessors, (523), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2024-12-02 10:28:03,886 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:28:03,886 INFO L93 Difference]: Finished difference Result 108091 states and 149744 transitions. [2024-12-02 10:28:03,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 10:28:03,887 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 74.71428571428571) internal successors, (523), 7 states have internal predecessors, (523), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 834 [2024-12-02 10:28:03,888 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:28:03,949 INFO L225 Difference]: With dead ends: 108091 [2024-12-02 10:28:03,950 INFO L226 Difference]: Without dead ends: 65313 [2024-12-02 10:28:03,987 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 840 GetRequests, 833 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-12-02 10:28:03,987 INFO L435 NwaCegarLoop]: 1209 mSDtfsCounter, 798 mSDsluCounter, 4763 mSDsCounter, 0 mSdLazyCounter, 564 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 798 SdHoareTripleChecker+Valid, 5972 SdHoareTripleChecker+Invalid, 566 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 564 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-12-02 10:28:03,987 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [798 Valid, 5972 Invalid, 566 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 564 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-12-02 10:28:04,017 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65313 states. [2024-12-02 10:28:05,469 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65313 to 65313. [2024-12-02 10:28:05,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65313 states, 63639 states have (on average 1.3654520027027452) internal successors, (86896), 63639 states have internal predecessors, (86896), 1672 states have call successors, (1672), 1 states have call predecessors, (1672), 1 states have return successors, (1672), 1672 states have call predecessors, (1672), 1672 states have call successors, (1672) [2024-12-02 10:28:05,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65313 states to 65313 states and 90240 transitions. [2024-12-02 10:28:05,590 INFO L78 Accepts]: Start accepts. Automaton has 65313 states and 90240 transitions. Word has length 834 [2024-12-02 10:28:05,591 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:28:05,591 INFO L471 AbstractCegarLoop]: Abstraction has 65313 states and 90240 transitions. [2024-12-02 10:28:05,591 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 74.71428571428571) internal successors, (523), 7 states have internal predecessors, (523), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2024-12-02 10:28:05,591 INFO L276 IsEmpty]: Start isEmpty. Operand 65313 states and 90240 transitions. [2024-12-02 10:28:05,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 835 [2024-12-02 10:28:05,653 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:28:05,653 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:28:05,694 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a70003ac-7918-4afc-bf60-f5b65c90ed47/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2024-12-02 10:28:05,854 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a70003ac-7918-4afc-bf60-f5b65c90ed47/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable76 [2024-12-02 10:28:05,854 INFO L396 AbstractCegarLoop]: === Iteration 78 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:28:05,854 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:28:05,855 INFO L85 PathProgramCache]: Analyzing trace with hash -815021024, now seen corresponding path program 1 times [2024-12-02 10:28:05,855 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:28:05,855 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1994977836] [2024-12-02 10:28:05,855 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:28:05,855 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:28:20,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:28:30,541 INFO L134 CoverageAnalysis]: Checked inductivity of 633 backedges. 175 proven. 94 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-12-02 10:28:30,541 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:28:30,541 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1994977836] [2024-12-02 10:28:30,541 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1994977836] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 10:28:30,541 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [434577158] [2024-12-02 10:28:30,541 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:28:30,541 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 10:28:30,541 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a70003ac-7918-4afc-bf60-f5b65c90ed47/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 10:28:30,550 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a70003ac-7918-4afc-bf60-f5b65c90ed47/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 10:28:30,551 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a70003ac-7918-4afc-bf60-f5b65c90ed47/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2024-12-02 10:28:35,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:28:35,389 INFO L256 TraceCheckSpWp]: Trace formula consists of 4379 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-12-02 10:28:35,396 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:28:35,469 INFO L134 CoverageAnalysis]: Checked inductivity of 633 backedges. 179 proven. 0 refuted. 0 times theorem prover too weak. 454 trivial. 0 not checked. [2024-12-02 10:28:35,469 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 10:28:35,469 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [434577158] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:28:35,469 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 10:28:35,469 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [18] total 22 [2024-12-02 10:28:35,469 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1417564505] [2024-12-02 10:28:35,469 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:28:35,470 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 10:28:35,470 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:28:35,470 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 10:28:35,470 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=411, Unknown=0, NotChecked=0, Total=462 [2024-12-02 10:28:35,470 INFO L87 Difference]: Start difference. First operand 65313 states and 90240 transitions. Second operand has 6 states, 5 states have (on average 110.6) internal successors, (553), 6 states have internal predecessors, (553), 3 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (10), 2 states have call predecessors, (10), 3 states have call successors, (10) [2024-12-02 10:28:36,821 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:28:36,821 INFO L93 Difference]: Finished difference Result 125223 states and 173176 transitions. [2024-12-02 10:28:36,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 10:28:36,822 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 110.6) internal successors, (553), 6 states have internal predecessors, (553), 3 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (10), 2 states have call predecessors, (10), 3 states have call successors, (10) Word has length 834 [2024-12-02 10:28:36,822 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:28:36,894 INFO L225 Difference]: With dead ends: 125223 [2024-12-02 10:28:36,895 INFO L226 Difference]: Without dead ends: 65313 [2024-12-02 10:28:36,951 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 851 GetRequests, 831 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 100 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=51, Invalid=411, Unknown=0, NotChecked=0, Total=462 [2024-12-02 10:28:36,951 INFO L435 NwaCegarLoop]: 1305 mSDtfsCounter, 0 mSDsluCounter, 5197 mSDsCounter, 0 mSdLazyCounter, 64 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 6502 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 64 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 10:28:36,951 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 6502 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 64 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 10:28:36,988 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65313 states. [2024-12-02 10:28:38,657 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65313 to 64961. [2024-12-02 10:28:38,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64961 states, 63287 states have (on average 1.3647036516188158) internal successors, (86368), 63287 states have internal predecessors, (86368), 1672 states have call successors, (1672), 1 states have call predecessors, (1672), 1 states have return successors, (1672), 1672 states have call predecessors, (1672), 1672 states have call successors, (1672) [2024-12-02 10:28:38,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64961 states to 64961 states and 89712 transitions. [2024-12-02 10:28:38,808 INFO L78 Accepts]: Start accepts. Automaton has 64961 states and 89712 transitions. Word has length 834 [2024-12-02 10:28:38,809 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:28:38,809 INFO L471 AbstractCegarLoop]: Abstraction has 64961 states and 89712 transitions. [2024-12-02 10:28:38,809 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 110.6) internal successors, (553), 6 states have internal predecessors, (553), 3 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (10), 2 states have call predecessors, (10), 3 states have call successors, (10) [2024-12-02 10:28:38,809 INFO L276 IsEmpty]: Start isEmpty. Operand 64961 states and 89712 transitions. [2024-12-02 10:28:38,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 836 [2024-12-02 10:28:38,884 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:28:38,884 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:28:38,919 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a70003ac-7918-4afc-bf60-f5b65c90ed47/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2024-12-02 10:28:39,084 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a70003ac-7918-4afc-bf60-f5b65c90ed47/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable77 [2024-12-02 10:28:39,085 INFO L396 AbstractCegarLoop]: === Iteration 79 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:28:39,085 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:28:39,085 INFO L85 PathProgramCache]: Analyzing trace with hash -72090818, now seen corresponding path program 1 times [2024-12-02 10:28:39,086 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:28:39,086 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1408331784] [2024-12-02 10:28:39,086 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:28:39,086 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:28:50,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:28:52,325 INFO L134 CoverageAnalysis]: Checked inductivity of 630 backedges. 38 proven. 0 refuted. 0 times theorem prover too weak. 592 trivial. 0 not checked. [2024-12-02 10:28:52,325 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:28:52,325 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1408331784] [2024-12-02 10:28:52,325 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1408331784] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:28:52,325 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:28:52,325 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 10:28:52,325 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1243355536] [2024-12-02 10:28:52,325 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:28:52,326 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 10:28:52,326 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:28:52,327 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 10:28:52,327 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-12-02 10:28:52,327 INFO L87 Difference]: Start difference. First operand 64961 states and 89712 transitions. Second operand has 6 states, 6 states have (on average 91.66666666666667) internal successors, (550), 6 states have internal predecessors, (550), 2 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-12-02 10:28:54,327 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:28:54,327 INFO L93 Difference]: Finished difference Result 125191 states and 172952 transitions. [2024-12-02 10:28:54,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 10:28:54,328 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 91.66666666666667) internal successors, (550), 6 states have internal predecessors, (550), 2 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 835 [2024-12-02 10:28:54,328 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:28:54,391 INFO L225 Difference]: With dead ends: 125191 [2024-12-02 10:28:54,391 INFO L226 Difference]: Without dead ends: 65665 [2024-12-02 10:28:54,436 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-12-02 10:28:54,436 INFO L435 NwaCegarLoop]: 1008 mSDtfsCounter, 1201 mSDsluCounter, 3007 mSDsCounter, 0 mSdLazyCounter, 1257 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1206 SdHoareTripleChecker+Valid, 4015 SdHoareTripleChecker+Invalid, 1257 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1257 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-12-02 10:28:54,436 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1206 Valid, 4015 Invalid, 1257 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1257 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-12-02 10:28:54,467 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65665 states. [2024-12-02 10:28:55,944 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65665 to 65489. [2024-12-02 10:28:55,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65489 states, 63815 states have (on average 1.3616861239520488) internal successors, (86896), 63815 states have internal predecessors, (86896), 1672 states have call successors, (1672), 1 states have call predecessors, (1672), 1 states have return successors, (1672), 1672 states have call predecessors, (1672), 1672 states have call successors, (1672) [2024-12-02 10:28:56,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65489 states to 65489 states and 90240 transitions. [2024-12-02 10:28:56,066 INFO L78 Accepts]: Start accepts. Automaton has 65489 states and 90240 transitions. Word has length 835 [2024-12-02 10:28:56,066 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:28:56,066 INFO L471 AbstractCegarLoop]: Abstraction has 65489 states and 90240 transitions. [2024-12-02 10:28:56,066 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 91.66666666666667) internal successors, (550), 6 states have internal predecessors, (550), 2 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-12-02 10:28:56,066 INFO L276 IsEmpty]: Start isEmpty. Operand 65489 states and 90240 transitions. [2024-12-02 10:28:56,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 837 [2024-12-02 10:28:56,128 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:28:56,129 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:28:56,129 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable78 [2024-12-02 10:28:56,129 INFO L396 AbstractCegarLoop]: === Iteration 80 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:28:56,129 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:28:56,130 INFO L85 PathProgramCache]: Analyzing trace with hash -933045850, now seen corresponding path program 1 times [2024-12-02 10:28:56,130 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:28:56,130 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1309044438] [2024-12-02 10:28:56,130 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:28:56,130 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:29:07,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:29:15,368 INFO L134 CoverageAnalysis]: Checked inductivity of 634 backedges. 175 proven. 95 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-12-02 10:29:15,368 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:29:15,369 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1309044438] [2024-12-02 10:29:15,369 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1309044438] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 10:29:15,369 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2125616478] [2024-12-02 10:29:15,369 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:29:15,369 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 10:29:15,369 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a70003ac-7918-4afc-bf60-f5b65c90ed47/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 10:29:15,371 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a70003ac-7918-4afc-bf60-f5b65c90ed47/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 10:29:15,372 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a70003ac-7918-4afc-bf60-f5b65c90ed47/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2024-12-02 10:29:21,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:29:21,152 INFO L256 TraceCheckSpWp]: Trace formula consists of 4385 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-12-02 10:29:21,160 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:29:21,645 INFO L134 CoverageAnalysis]: Checked inductivity of 634 backedges. 460 proven. 0 refuted. 0 times theorem prover too weak. 174 trivial. 0 not checked. [2024-12-02 10:29:21,645 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 10:29:21,645 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2125616478] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:29:21,646 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 10:29:21,646 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [18] total 24 [2024-12-02 10:29:21,646 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1628542535] [2024-12-02 10:29:21,646 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:29:21,647 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-12-02 10:29:21,647 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:29:21,648 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-12-02 10:29:21,648 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=475, Unknown=0, NotChecked=0, Total=552 [2024-12-02 10:29:21,648 INFO L87 Difference]: Start difference. First operand 65489 states and 90240 transitions. Second operand has 8 states, 8 states have (on average 96.125) internal successors, (769), 8 states have internal predecessors, (769), 3 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2024-12-02 10:29:24,538 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:29:24,538 INFO L93 Difference]: Finished difference Result 132127 states and 182126 transitions. [2024-12-02 10:29:24,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 10:29:24,539 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 96.125) internal successors, (769), 8 states have internal predecessors, (769), 3 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 836 [2024-12-02 10:29:24,539 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:29:24,605 INFO L225 Difference]: With dead ends: 132127 [2024-12-02 10:29:24,605 INFO L226 Difference]: Without dead ends: 89221 [2024-12-02 10:29:24,632 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 856 GetRequests, 832 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 188 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=89, Invalid=561, Unknown=0, NotChecked=0, Total=650 [2024-12-02 10:29:24,633 INFO L435 NwaCegarLoop]: 1019 mSDtfsCounter, 4100 mSDsluCounter, 4052 mSDsCounter, 0 mSdLazyCounter, 1497 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4113 SdHoareTripleChecker+Valid, 5071 SdHoareTripleChecker+Invalid, 1503 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 1497 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-12-02 10:29:24,633 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4113 Valid, 5071 Invalid, 1503 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 1497 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-12-02 10:29:24,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89221 states. [2024-12-02 10:29:26,795 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89221 to 87921. [2024-12-02 10:29:26,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87921 states, 85567 states have (on average 1.35708859723959) internal successors, (116122), 85567 states have internal predecessors, (116122), 2352 states have call successors, (2352), 1 states have call predecessors, (2352), 1 states have return successors, (2352), 2352 states have call predecessors, (2352), 2352 states have call successors, (2352) [2024-12-02 10:29:26,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87921 states to 87921 states and 120826 transitions. [2024-12-02 10:29:26,990 INFO L78 Accepts]: Start accepts. Automaton has 87921 states and 120826 transitions. Word has length 836 [2024-12-02 10:29:26,990 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:29:26,990 INFO L471 AbstractCegarLoop]: Abstraction has 87921 states and 120826 transitions. [2024-12-02 10:29:26,991 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 96.125) internal successors, (769), 8 states have internal predecessors, (769), 3 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2024-12-02 10:29:26,991 INFO L276 IsEmpty]: Start isEmpty. Operand 87921 states and 120826 transitions. [2024-12-02 10:29:27,111 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 838 [2024-12-02 10:29:27,111 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:29:27,112 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:29:27,159 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a70003ac-7918-4afc-bf60-f5b65c90ed47/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2024-12-02 10:29:27,312 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a70003ac-7918-4afc-bf60-f5b65c90ed47/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable79 [2024-12-02 10:29:27,312 INFO L396 AbstractCegarLoop]: === Iteration 81 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:29:27,319 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:29:27,320 INFO L85 PathProgramCache]: Analyzing trace with hash 1234658648, now seen corresponding path program 1 times [2024-12-02 10:29:27,320 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:29:27,320 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1822498086] [2024-12-02 10:29:27,321 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:29:27,321 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:29:40,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:29:52,968 INFO L134 CoverageAnalysis]: Checked inductivity of 635 backedges. 176 proven. 95 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-12-02 10:29:52,968 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:29:52,968 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1822498086] [2024-12-02 10:29:52,968 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1822498086] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 10:29:52,968 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2012380704] [2024-12-02 10:29:52,968 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:29:52,968 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 10:29:52,969 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a70003ac-7918-4afc-bf60-f5b65c90ed47/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 10:29:52,970 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a70003ac-7918-4afc-bf60-f5b65c90ed47/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 10:29:52,971 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a70003ac-7918-4afc-bf60-f5b65c90ed47/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2024-12-02 10:29:59,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:29:59,320 INFO L256 TraceCheckSpWp]: Trace formula consists of 4386 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-12-02 10:29:59,328 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:29:59,413 INFO L134 CoverageAnalysis]: Checked inductivity of 635 backedges. 64 proven. 0 refuted. 0 times theorem prover too weak. 571 trivial. 0 not checked. [2024-12-02 10:29:59,413 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 10:29:59,413 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2012380704] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:29:59,413 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 10:29:59,413 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [21] total 25 [2024-12-02 10:29:59,413 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1399701200] [2024-12-02 10:29:59,413 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:29:59,414 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 10:29:59,414 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:29:59,414 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 10:29:59,414 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=530, Unknown=0, NotChecked=0, Total=600 [2024-12-02 10:29:59,415 INFO L87 Difference]: Start difference. First operand 87921 states and 120826 transitions. Second operand has 6 states, 5 states have (on average 105.0) internal successors, (525), 6 states have internal predecessors, (525), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 1 states have call predecessors, (8), 2 states have call successors, (8) [2024-12-02 10:30:01,368 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:30:01,369 INFO L93 Difference]: Finished difference Result 172379 states and 236770 transitions. [2024-12-02 10:30:01,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 10:30:01,370 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 105.0) internal successors, (525), 6 states have internal predecessors, (525), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 1 states have call predecessors, (8), 2 states have call successors, (8) Word has length 837 [2024-12-02 10:30:01,370 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:30:01,446 INFO L225 Difference]: With dead ends: 172379 [2024-12-02 10:30:01,446 INFO L226 Difference]: Without dead ends: 87921 [2024-12-02 10:30:01,486 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 860 GetRequests, 837 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 165 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=70, Invalid=530, Unknown=0, NotChecked=0, Total=600 [2024-12-02 10:30:01,487 INFO L435 NwaCegarLoop]: 1306 mSDtfsCounter, 0 mSDsluCounter, 5197 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 6503 SdHoareTripleChecker+Invalid, 67 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 10:30:01,487 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 6503 Invalid, 67 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 10:30:01,524 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87921 states. [2024-12-02 10:30:03,585 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87921 to 87921. [2024-12-02 10:30:03,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87921 states, 85567 states have (on average 1.3540967896502156) internal successors, (115866), 85567 states have internal predecessors, (115866), 2352 states have call successors, (2352), 1 states have call predecessors, (2352), 1 states have return successors, (2352), 2352 states have call predecessors, (2352), 2352 states have call successors, (2352) [2024-12-02 10:30:03,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87921 states to 87921 states and 120570 transitions. [2024-12-02 10:30:03,771 INFO L78 Accepts]: Start accepts. Automaton has 87921 states and 120570 transitions. Word has length 837 [2024-12-02 10:30:03,771 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:30:03,771 INFO L471 AbstractCegarLoop]: Abstraction has 87921 states and 120570 transitions. [2024-12-02 10:30:03,771 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 105.0) internal successors, (525), 6 states have internal predecessors, (525), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 1 states have call predecessors, (8), 2 states have call successors, (8) [2024-12-02 10:30:03,771 INFO L276 IsEmpty]: Start isEmpty. Operand 87921 states and 120570 transitions. [2024-12-02 10:30:03,843 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 839 [2024-12-02 10:30:03,843 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:30:03,843 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:30:03,874 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a70003ac-7918-4afc-bf60-f5b65c90ed47/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Ended with exit code 0 [2024-12-02 10:30:04,043 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable80,18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a70003ac-7918-4afc-bf60-f5b65c90ed47/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 10:30:04,044 INFO L396 AbstractCegarLoop]: === Iteration 82 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:30:04,044 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:30:04,044 INFO L85 PathProgramCache]: Analyzing trace with hash 2043716146, now seen corresponding path program 1 times [2024-12-02 10:30:04,044 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:30:04,044 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1857899221] [2024-12-02 10:30:04,044 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:30:04,044 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:30:09,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:30:11,946 INFO L134 CoverageAnalysis]: Checked inductivity of 638 backedges. 274 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-12-02 10:30:11,946 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:30:11,946 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1857899221] [2024-12-02 10:30:11,946 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1857899221] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:30:11,946 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:30:11,946 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-12-02 10:30:11,946 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [321970663] [2024-12-02 10:30:11,946 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:30:11,947 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-12-02 10:30:11,948 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:30:11,949 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-12-02 10:30:11,949 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-12-02 10:30:11,949 INFO L87 Difference]: Start difference. First operand 87921 states and 120570 transitions. Second operand has 8 states, 8 states have (on average 96.375) internal successors, (771), 8 states have internal predecessors, (771), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-12-02 10:30:15,471 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:30:15,471 INFO L93 Difference]: Finished difference Result 159673 states and 220041 transitions. [2024-12-02 10:30:15,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-02 10:30:15,472 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 96.375) internal successors, (771), 8 states have internal predecessors, (771), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 838 [2024-12-02 10:30:15,472 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:30:15,575 INFO L225 Difference]: With dead ends: 159673 [2024-12-02 10:30:15,575 INFO L226 Difference]: Without dead ends: 117795 [2024-12-02 10:30:15,614 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-12-02 10:30:15,614 INFO L435 NwaCegarLoop]: 1178 mSDtfsCounter, 2424 mSDsluCounter, 5613 mSDsCounter, 0 mSdLazyCounter, 2135 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2431 SdHoareTripleChecker+Valid, 6791 SdHoareTripleChecker+Invalid, 2136 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 2135 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-12-02 10:30:15,614 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2431 Valid, 6791 Invalid, 2136 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 2135 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-12-02 10:30:15,663 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117795 states. [2024-12-02 10:30:19,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117795 to 117719. [2024-12-02 10:30:19,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 117719 states, 114821 states have (on average 1.3610489370411336) internal successors, (156277), 114821 states have internal predecessors, (156277), 2896 states have call successors, (2896), 1 states have call predecessors, (2896), 1 states have return successors, (2896), 2896 states have call predecessors, (2896), 2896 states have call successors, (2896) [2024-12-02 10:30:19,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117719 states to 117719 states and 162069 transitions. [2024-12-02 10:30:19,328 INFO L78 Accepts]: Start accepts. Automaton has 117719 states and 162069 transitions. Word has length 838 [2024-12-02 10:30:19,329 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:30:19,329 INFO L471 AbstractCegarLoop]: Abstraction has 117719 states and 162069 transitions. [2024-12-02 10:30:19,329 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 96.375) internal successors, (771), 8 states have internal predecessors, (771), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-12-02 10:30:19,329 INFO L276 IsEmpty]: Start isEmpty. Operand 117719 states and 162069 transitions. [2024-12-02 10:30:19,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 839 [2024-12-02 10:30:19,510 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:30:19,511 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:30:19,511 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable81 [2024-12-02 10:30:19,511 INFO L396 AbstractCegarLoop]: === Iteration 83 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:30:19,511 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:30:19,512 INFO L85 PathProgramCache]: Analyzing trace with hash -498832266, now seen corresponding path program 1 times [2024-12-02 10:30:19,512 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:30:19,512 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [946800228] [2024-12-02 10:30:19,512 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:30:19,512 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:30:28,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:30:33,806 INFO L134 CoverageAnalysis]: Checked inductivity of 638 backedges. 2 proven. 272 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-12-02 10:30:33,807 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:30:33,807 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [946800228] [2024-12-02 10:30:33,807 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [946800228] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 10:30:33,807 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [55211945] [2024-12-02 10:30:33,807 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:30:33,807 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 10:30:33,807 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a70003ac-7918-4afc-bf60-f5b65c90ed47/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 10:30:33,809 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a70003ac-7918-4afc-bf60-f5b65c90ed47/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 10:30:33,810 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a70003ac-7918-4afc-bf60-f5b65c90ed47/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2024-12-02 10:30:41,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:30:41,268 INFO L256 TraceCheckSpWp]: Trace formula consists of 4387 conjuncts, 125 conjuncts are in the unsatisfiable core [2024-12-02 10:30:41,281 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:30:46,420 INFO L134 CoverageAnalysis]: Checked inductivity of 638 backedges. 176 proven. 98 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-12-02 10:30:46,420 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 10:30:53,865 INFO L134 CoverageAnalysis]: Checked inductivity of 638 backedges. 122 proven. 152 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-12-02 10:30:53,865 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [55211945] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 10:30:53,865 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 10:30:53,865 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 24, 24] total 57 [2024-12-02 10:30:53,865 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [466743373] [2024-12-02 10:30:53,865 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 10:30:53,866 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 57 states [2024-12-02 10:30:53,866 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:30:53,868 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 57 interpolants. [2024-12-02 10:30:53,868 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=262, Invalid=2930, Unknown=0, NotChecked=0, Total=3192 [2024-12-02 10:30:53,868 INFO L87 Difference]: Start difference. First operand 117719 states and 162069 transitions. Second operand has 57 states, 57 states have (on average 38.19298245614035) internal successors, (2177), 57 states have internal predecessors, (2177), 9 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 9 states have call predecessors, (42), 9 states have call successors, (42) [2024-12-02 10:32:20,271 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:32:20,271 INFO L93 Difference]: Finished difference Result 525791 states and 738194 transitions. [2024-12-02 10:32:20,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 351 states. [2024-12-02 10:32:20,272 INFO L78 Accepts]: Start accepts. Automaton has has 57 states, 57 states have (on average 38.19298245614035) internal successors, (2177), 57 states have internal predecessors, (2177), 9 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 9 states have call predecessors, (42), 9 states have call successors, (42) Word has length 838 [2024-12-02 10:32:20,272 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:32:20,890 INFO L225 Difference]: With dead ends: 525791 [2024-12-02 10:32:20,890 INFO L226 Difference]: Without dead ends: 470593 [2024-12-02 10:32:20,986 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2035 GetRequests, 1634 SyntacticMatches, 1 SemanticMatches, 400 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62587 ImplicationChecksByTransitivity, 21.7s TimeCoverageRelationStatistics Valid=10647, Invalid=150555, Unknown=0, NotChecked=0, Total=161202 [2024-12-02 10:32:20,986 INFO L435 NwaCegarLoop]: 8699 mSDtfsCounter, 40575 mSDsluCounter, 259593 mSDsCounter, 0 mSdLazyCounter, 85530 mSolverCounterSat, 113 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 46.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40582 SdHoareTripleChecker+Valid, 268292 SdHoareTripleChecker+Invalid, 85643 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.7s SdHoareTripleChecker+Time, 113 IncrementalHoareTripleChecker+Valid, 85530 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 54.1s IncrementalHoareTripleChecker+Time [2024-12-02 10:32:20,987 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [40582 Valid, 268292 Invalid, 85643 Unknown, 0 Unchecked, 0.7s Time], IncrementalHoareTripleChecker [113 Valid, 85530 Invalid, 0 Unknown, 0 Unchecked, 54.1s Time] [2024-12-02 10:32:21,196 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 470593 states. [2024-12-02 10:32:27,528 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 470593 to 233123. [2024-12-02 10:32:27,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 233123 states, 227657 states have (on average 1.3619831588749742) internal successors, (310065), 227657 states have internal predecessors, (310065), 5464 states have call successors, (5464), 1 states have call predecessors, (5464), 1 states have return successors, (5464), 5464 states have call predecessors, (5464), 5464 states have call successors, (5464) [2024-12-02 10:32:27,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 233123 states to 233123 states and 320993 transitions. [2024-12-02 10:32:28,008 INFO L78 Accepts]: Start accepts. Automaton has 233123 states and 320993 transitions. Word has length 838 [2024-12-02 10:32:28,008 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:32:28,008 INFO L471 AbstractCegarLoop]: Abstraction has 233123 states and 320993 transitions. [2024-12-02 10:32:28,009 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 57 states, 57 states have (on average 38.19298245614035) internal successors, (2177), 57 states have internal predecessors, (2177), 9 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 9 states have call predecessors, (42), 9 states have call successors, (42) [2024-12-02 10:32:28,009 INFO L276 IsEmpty]: Start isEmpty. Operand 233123 states and 320993 transitions. [2024-12-02 10:32:28,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 840 [2024-12-02 10:32:28,244 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:32:28,244 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:32:28,275 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a70003ac-7918-4afc-bf60-f5b65c90ed47/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2024-12-02 10:32:28,445 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable82,19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a70003ac-7918-4afc-bf60-f5b65c90ed47/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 10:32:28,445 INFO L396 AbstractCegarLoop]: === Iteration 84 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:32:28,446 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:32:28,446 INFO L85 PathProgramCache]: Analyzing trace with hash -824133449, now seen corresponding path program 1 times [2024-12-02 10:32:28,446 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:32:28,446 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [17085812] [2024-12-02 10:32:28,446 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:32:28,446 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:32:28,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:32:30,586 INFO L134 CoverageAnalysis]: Checked inductivity of 636 backedges. 178 proven. 0 refuted. 0 times theorem prover too weak. 458 trivial. 0 not checked. [2024-12-02 10:32:30,586 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:32:30,586 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [17085812] [2024-12-02 10:32:30,586 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [17085812] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:32:30,586 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:32:30,586 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 10:32:30,586 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [744431883] [2024-12-02 10:32:30,586 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:32:30,587 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 10:32:30,588 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:32:30,589 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 10:32:30,589 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 10:32:30,589 INFO L87 Difference]: Start difference. First operand 233123 states and 320993 transitions. Second operand has 4 states, 4 states have (on average 171.5) internal successors, (686), 4 states have internal predecessors, (686), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2024-12-02 10:32:36,485 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:32:36,485 INFO L93 Difference]: Finished difference Result 399133 states and 552693 transitions. [2024-12-02 10:32:36,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 10:32:36,661 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 171.5) internal successors, (686), 4 states have internal predecessors, (686), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 839 [2024-12-02 10:32:36,662 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:32:36,891 INFO L225 Difference]: With dead ends: 399133 [2024-12-02 10:32:36,891 INFO L226 Difference]: Without dead ends: 222731 [2024-12-02 10:32:36,946 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 10:32:36,947 INFO L435 NwaCegarLoop]: 1310 mSDtfsCounter, 0 mSDsluCounter, 2610 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 3920 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 10:32:36,947 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 3920 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 10:32:37,048 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 222731 states. [2024-12-02 10:32:42,672 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 222731 to 222731. [2024-12-02 10:32:42,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 222731 states, 217265 states have (on average 1.3574252640784297) internal successors, (294921), 217265 states have internal predecessors, (294921), 5464 states have call successors, (5464), 1 states have call predecessors, (5464), 1 states have return successors, (5464), 5464 states have call predecessors, (5464), 5464 states have call successors, (5464) [2024-12-02 10:32:43,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 222731 states to 222731 states and 305849 transitions. [2024-12-02 10:32:43,134 INFO L78 Accepts]: Start accepts. Automaton has 222731 states and 305849 transitions. Word has length 839 [2024-12-02 10:32:43,135 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:32:43,135 INFO L471 AbstractCegarLoop]: Abstraction has 222731 states and 305849 transitions. [2024-12-02 10:32:43,135 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 171.5) internal successors, (686), 4 states have internal predecessors, (686), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2024-12-02 10:32:43,135 INFO L276 IsEmpty]: Start isEmpty. Operand 222731 states and 305849 transitions. [2024-12-02 10:32:43,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 841 [2024-12-02 10:32:43,367 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:32:43,367 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:32:43,368 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable83 [2024-12-02 10:32:43,368 INFO L396 AbstractCegarLoop]: === Iteration 85 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:32:43,368 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:32:43,368 INFO L85 PathProgramCache]: Analyzing trace with hash 1836361728, now seen corresponding path program 1 times [2024-12-02 10:32:43,368 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:32:43,368 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1234898239] [2024-12-02 10:32:43,369 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:32:43,369 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:32:51,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:32:56,819 INFO L134 CoverageAnalysis]: Checked inductivity of 638 backedges. 274 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-12-02 10:32:56,819 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:32:56,819 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1234898239] [2024-12-02 10:32:56,819 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1234898239] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:32:56,819 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:32:56,820 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-12-02 10:32:56,820 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [905782700] [2024-12-02 10:32:56,820 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:32:56,821 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-12-02 10:32:56,821 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:32:56,822 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-12-02 10:32:56,822 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-12-02 10:32:56,822 INFO L87 Difference]: Start difference. First operand 222731 states and 305849 transitions. Second operand has 10 states, 10 states have (on average 77.3) internal successors, (773), 10 states have internal predecessors, (773), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 4 states have call predecessors, (14), 4 states have call successors, (14) [2024-12-02 10:33:04,926 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:33:04,927 INFO L93 Difference]: Finished difference Result 602571 states and 829355 transitions. [2024-12-02 10:33:04,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-12-02 10:33:04,928 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 77.3) internal successors, (773), 10 states have internal predecessors, (773), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 4 states have call predecessors, (14), 4 states have call successors, (14) Word has length 840 [2024-12-02 10:33:04,928 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:33:05,286 INFO L225 Difference]: With dead ends: 602571 [2024-12-02 10:33:05,286 INFO L226 Difference]: Without dead ends: 390393 [2024-12-02 10:33:05,406 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=49, Invalid=161, Unknown=0, NotChecked=0, Total=210 [2024-12-02 10:33:05,407 INFO L435 NwaCegarLoop]: 3020 mSDtfsCounter, 3282 mSDsluCounter, 16256 mSDsCounter, 0 mSdLazyCounter, 648 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3288 SdHoareTripleChecker+Valid, 19276 SdHoareTripleChecker+Invalid, 658 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 648 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-12-02 10:33:05,407 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3288 Valid, 19276 Invalid, 658 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 648 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-12-02 10:33:05,583 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 390393 states.