./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/hardware-verification-bv/btor2c-lazyMod.unsafe_analog_estimation_convergence.c --full-output --witness-type violation_witness --validate ./svcomp-yaml-violation-generation.2024-08-01_14-26-22.files/Default/btor2c-lazyMod.unsafe_analog_estimation_convergence.yml/witness.yml --preprocessor.replace.while.statements.and.if-then-else.statements false --icfgbuilder.size.of.a.code.block SequenceOfStatements --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 03fe66fa Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReachWitnessValidation.xml -i ../../../trunk/examples/svcomp/hardware-verification-bv/btor2c-lazyMod.unsafe_analog_estimation_convergence.c ./svcomp-yaml-violation-generation.2024-08-01_14-26-22.files/Default/btor2c-lazyMod.unsafe_analog_estimation_convergence.yml/witness.yml -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --traceabstraction.compute.hoare.annotation.of.negated.interpolant.automaton,.abstraction.and.cfg false --preprocessor.replace.while.statements.and.if-then-else.statements false --icfgbuilder.size.of.a.code.block SequenceOfStatements --- Real Ultimate output --- This is Ultimate 0.2.4-wip.fs.yaml-violation-witnesses-03fe66f-m [2024-08-15 18:21:21,432 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-08-15 18:21:21,514 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-08-15 18:21:21,519 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-08-15 18:21:21,520 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-08-15 18:21:21,543 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-08-15 18:21:21,544 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-08-15 18:21:21,544 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-08-15 18:21:21,545 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-08-15 18:21:21,545 INFO L153 SettingsManager]: * Use memory slicer=true [2024-08-15 18:21:21,545 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-08-15 18:21:21,546 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-08-15 18:21:21,546 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-08-15 18:21:21,546 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-08-15 18:21:21,546 INFO L153 SettingsManager]: * Use SBE=true [2024-08-15 18:21:21,547 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-08-15 18:21:21,547 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-08-15 18:21:21,547 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-08-15 18:21:21,548 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-08-15 18:21:21,548 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-08-15 18:21:21,548 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-08-15 18:21:21,552 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-08-15 18:21:21,552 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-08-15 18:21:21,553 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-08-15 18:21:21,553 INFO L153 SettingsManager]: * Use constant arrays=true [2024-08-15 18:21:21,553 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-08-15 18:21:21,553 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-08-15 18:21:21,553 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-08-15 18:21:21,553 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-08-15 18:21:21,553 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-08-15 18:21:21,554 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-08-15 18:21:21,554 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-08-15 18:21:21,554 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-08-15 18:21:21,554 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-08-15 18:21:21,554 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-08-15 18:21:21,554 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-08-15 18:21:21,555 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-08-15 18:21:21,555 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-08-15 18:21:21,555 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-08-15 18:21:21,555 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-08-15 18:21:21,555 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.boogie.preprocessor: Replace while statements and if-then-else statements -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder: Size of a code block -> SequenceOfStatements [2024-08-15 18:21:21,767 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-08-15 18:21:21,791 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-08-15 18:21:21,798 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-08-15 18:21:21,799 INFO L270 PluginConnector]: Initializing CDTParser... [2024-08-15 18:21:21,799 INFO L274 PluginConnector]: CDTParser initialized [2024-08-15 18:21:21,800 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardware-verification-bv/btor2c-lazyMod.unsafe_analog_estimation_convergence.c [2024-08-15 18:21:23,087 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-08-15 18:21:23,270 INFO L384 CDTParser]: Found 1 translation units. [2024-08-15 18:21:23,271 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardware-verification-bv/btor2c-lazyMod.unsafe_analog_estimation_convergence.c [2024-08-15 18:21:23,279 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a5ddb716c/e6977661d10548c9b6514a5e5c82e767/FLAG962b9a447 [2024-08-15 18:21:23,646 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a5ddb716c/e6977661d10548c9b6514a5e5c82e767 [2024-08-15 18:21:23,648 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-08-15 18:21:23,652 INFO L274 PluginConnector]: Witness Parser initialized [2024-08-15 18:21:23,653 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/./svcomp-yaml-violation-generation.2024-08-01_14-26-22.files/Default/btor2c-lazyMod.unsafe_analog_estimation_convergence.yml/witness.yml [2024-08-15 18:21:23,756 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-08-15 18:21:23,757 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2024-08-15 18:21:23,759 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-08-15 18:21:23,759 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-08-15 18:21:23,763 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-08-15 18:21:23,764 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.08 06:21:23" (1/2) ... [2024-08-15 18:21:23,765 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@77c6ecdc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.08 06:21:23, skipping insertion in model container [2024-08-15 18:21:23,765 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.08 06:21:23" (1/2) ... [2024-08-15 18:21:23,766 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@1445a974 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.08 06:21:23, skipping insertion in model container [2024-08-15 18:21:23,766 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser VIOLATION_WITNESS 15.08 06:21:23" (2/2) ... [2024-08-15 18:21:23,766 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@77c6ecdc and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator VIOLATION_WITNESS 15.08 06:21:23, skipping insertion in model container [2024-08-15 18:21:23,766 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser VIOLATION_WITNESS 15.08 06:21:23" (2/2) ... [2024-08-15 18:21:23,793 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-08-15 18:21:23,971 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardware-verification-bv/btor2c-lazyMod.unsafe_analog_estimation_convergence.c[1289,1302] [2024-08-15 18:21:24,062 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-08-15 18:21:24,071 INFO L200 MainTranslator]: Completed pre-run [2024-08-15 18:21:24,079 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardware-verification-bv/btor2c-lazyMod.unsafe_analog_estimation_convergence.c[1289,1302] [2024-08-15 18:21:24,147 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-08-15 18:21:24,164 INFO L204 MainTranslator]: Completed translation [2024-08-15 18:21:24,164 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator VIOLATION_WITNESS 15.08 06:21:24 WrapperNode [2024-08-15 18:21:24,165 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-08-15 18:21:24,165 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-08-15 18:21:24,165 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-08-15 18:21:24,166 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-08-15 18:21:24,176 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator VIOLATION_WITNESS 15.08 06:21:24" (1/1) ... [2024-08-15 18:21:24,176 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator VIOLATION_WITNESS 15.08 06:21:24" (1/1) ... [2024-08-15 18:21:24,202 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator VIOLATION_WITNESS 15.08 06:21:24" (1/1) ... [2024-08-15 18:21:24,241 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]. [2024-08-15 18:21:24,241 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator VIOLATION_WITNESS 15.08 06:21:24" (1/1) ... [2024-08-15 18:21:24,241 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator VIOLATION_WITNESS 15.08 06:21:24" (1/1) ... [2024-08-15 18:21:24,264 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator VIOLATION_WITNESS 15.08 06:21:24" (1/1) ... [2024-08-15 18:21:24,275 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator VIOLATION_WITNESS 15.08 06:21:24" (1/1) ... [2024-08-15 18:21:24,280 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator VIOLATION_WITNESS 15.08 06:21:24" (1/1) ... [2024-08-15 18:21:24,290 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-08-15 18:21:24,291 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-08-15 18:21:24,292 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-08-15 18:21:24,292 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-08-15 18:21:24,293 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator VIOLATION_WITNESS 15.08 06:21:24" (1/1) ... [2024-08-15 18:21:24,298 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-08-15 18:21:24,307 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-08-15 18:21:24,322 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-08-15 18:21:24,328 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2024-08-15 18:21:24,370 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2024-08-15 18:21:24,370 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-08-15 18:21:24,370 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2024-08-15 18:21:24,370 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-08-15 18:21:24,371 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-08-15 18:21:24,371 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2024-08-15 18:21:24,371 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uchar [2024-08-15 18:21:24,371 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ushort [2024-08-15 18:21:24,371 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2024-08-15 18:21:24,371 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2024-08-15 18:21:24,371 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2024-08-15 18:21:24,372 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2024-08-15 18:21:24,373 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2024-08-15 18:21:24,373 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-08-15 18:21:24,373 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-08-15 18:21:24,373 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-08-15 18:21:24,373 INFO L130 BoogieDeclarations]: Found specification of procedure main [2024-08-15 18:21:24,373 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2024-08-15 18:21:24,373 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-08-15 18:21:24,373 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-08-15 18:21:24,373 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-08-15 18:21:24,374 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-08-15 18:21:24,374 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-08-15 18:21:24,520 INFO L273 CfgBuilder]: Building ICFG [2024-08-15 18:21:24,524 INFO L304 CfgBuilder]: Building CFG for each procedure with an implementation [2024-08-15 18:21:25,505 INFO L? ?]: Removed 477 outVars from TransFormulas that were not future-live. [2024-08-15 18:21:25,505 INFO L327 CfgBuilder]: Performing block encoding [2024-08-15 18:21:25,517 INFO L349 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-08-15 18:21:25,519 INFO L354 CfgBuilder]: Removed 0 assume(true) statements. [2024-08-15 18:21:25,520 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 15.08 06:21:25 BoogieIcfgContainer [2024-08-15 18:21:25,520 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-08-15 18:21:25,523 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-08-15 18:21:25,523 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-08-15 18:21:25,526 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-08-15 18:21:25,526 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.08 06:21:23" (1/4) ... [2024-08-15 18:21:25,527 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@61a37a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.08 06:21:25, skipping insertion in model container [2024-08-15 18:21:25,527 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser VIOLATION_WITNESS 15.08 06:21:23" (2/4) ... [2024-08-15 18:21:25,527 WARN L100 eAbstractionObserver]: Found a witness in the YAML format. I will only consider traces that are accepted by the witness [2024-08-15 18:21:25,529 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@61a37a and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction VIOLATION_WITNESS 15.08 06:21:25, skipping insertion in model container [2024-08-15 18:21:25,529 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator VIOLATION_WITNESS 15.08 06:21:24" (3/4) ... [2024-08-15 18:21:25,529 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@61a37a and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction VIOLATION_WITNESS 15.08 06:21:25, skipping insertion in model container [2024-08-15 18:21:25,530 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 15.08 06:21:25" (4/4) ... [2024-08-15 18:21:25,531 INFO L128 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.unsafe_analog_estimation_convergence.c [2024-08-15 18:21:25,548 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-08-15 18:21:25,548 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-08-15 18:21:25,593 INFO L90 WitnessUtils]: Constructing product of automaton with 226 states and violation witness of the following lengths: [63] [2024-08-15 18:21:26,646 INFO L95 WitnessUtils]: Product has 7325 reachable states. [2024-08-15 18:21:26,659 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-08-15 18:21:26,665 INFO L357 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, mHoare=false, 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;@4c7d9d5c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-08-15 18:21:26,665 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-08-15 18:21:26,667 INFO L276 IsEmpty]: Start isEmpty. Operand 7325 states and 11862 transitions. [2024-08-15 18:21:26,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 964 [2024-08-15 18:21:26,710 INFO L187 NwaCegarLoop]: Found error trace [2024-08-15 18:21:26,711 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-08-15 18:21:26,712 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-08-15 18:21:26,717 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-15 18:21:26,718 INFO L85 PathProgramCache]: Analyzing trace with hash 1680199358, now seen corresponding path program 1 times [2024-08-15 18:21:26,725 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-15 18:21:26,725 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1161242318] [2024-08-15 18:21:26,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-15 18:21:26,726 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-15 18:21:27,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:21:31,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-08-15 18:21:31,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:21:31,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-08-15 18:21:31,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:21:31,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-08-15 18:21:31,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:21:31,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2024-08-15 18:21:31,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:21:31,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2024-08-15 18:21:31,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:21:31,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2024-08-15 18:21:31,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:21:31,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 264 [2024-08-15 18:21:31,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:21:31,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 303 [2024-08-15 18:21:31,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:21:31,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 317 [2024-08-15 18:21:31,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:21:31,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 403 [2024-08-15 18:21:31,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:21:31,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 442 [2024-08-15 18:21:31,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:21:31,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 456 [2024-08-15 18:21:31,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:21:31,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 542 [2024-08-15 18:21:31,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:21:31,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 581 [2024-08-15 18:21:31,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:21:31,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 595 [2024-08-15 18:21:31,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:21:31,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 681 [2024-08-15 18:21:31,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:21:31,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 720 [2024-08-15 18:21:31,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:21:31,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 734 [2024-08-15 18:21:31,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:21:31,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 820 [2024-08-15 18:21:31,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:21:31,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 859 [2024-08-15 18:21:31,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:21:31,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 873 [2024-08-15 18:21:31,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:21:31,239 INFO L134 CoverageAnalysis]: Checked inductivity of 2953 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 2929 trivial. 0 not checked. [2024-08-15 18:21:31,240 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-15 18:21:31,240 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1161242318] [2024-08-15 18:21:31,248 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1161242318] provided 1 perfect and 0 imperfect interpolant sequences [2024-08-15 18:21:31,248 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-08-15 18:21:31,248 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-08-15 18:21:31,249 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [543912399] [2024-08-15 18:21:31,250 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-08-15 18:21:31,253 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-08-15 18:21:31,253 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-15 18:21:31,278 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-08-15 18:21:31,279 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-08-15 18:21:31,282 INFO L87 Difference]: Start difference. First operand 7325 states and 11862 transitions. Second operand has 6 states, 5 states have (on average 29.6) internal successors, (148), 5 states have internal predecessors, (148), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-08-15 18:21:31,376 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-08-15 18:21:31,377 INFO L93 Difference]: Finished difference Result 1901 states and 3034 transitions. [2024-08-15 18:21:31,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-08-15 18:21:31,380 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 29.6) internal successors, (148), 5 states have internal predecessors, (148), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 963 [2024-08-15 18:21:31,384 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-08-15 18:21:31,406 INFO L225 Difference]: With dead ends: 1901 [2024-08-15 18:21:31,407 INFO L226 Difference]: Without dead ends: 1889 [2024-08-15 18:21:31,408 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-08-15 18:21:31,412 INFO L413 NwaCegarLoop]: 349 mSDtfsCounter, 63 mSDsluCounter, 1392 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 1741 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 [2024-08-15 18:21:31,414 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [64 Valid, 1741 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-08-15 18:21:31,432 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1889 states. [2024-08-15 18:21:31,501 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1889 to 1469. [2024-08-15 18:21:31,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1469 states, 1418 states have (on average 1.622002820874471) internal successors, (2300), 1420 states have internal predecessors, (2300), 26 states have call successors, (26), 25 states have call predecessors, (26), 24 states have return successors, (25), 23 states have call predecessors, (25), 25 states have call successors, (25) [2024-08-15 18:21:31,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1469 states to 1469 states and 2351 transitions. [2024-08-15 18:21:31,521 INFO L78 Accepts]: Start accepts. Automaton has 1469 states and 2351 transitions. Word has length 963 [2024-08-15 18:21:31,524 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-08-15 18:21:31,525 INFO L495 AbstractCegarLoop]: Abstraction has 1469 states and 2351 transitions. [2024-08-15 18:21:31,525 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 29.6) internal successors, (148), 5 states have internal predecessors, (148), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-08-15 18:21:31,525 INFO L276 IsEmpty]: Start isEmpty. Operand 1469 states and 2351 transitions. [2024-08-15 18:21:31,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 965 [2024-08-15 18:21:31,543 INFO L187 NwaCegarLoop]: Found error trace [2024-08-15 18:21:31,544 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-08-15 18:21:31,544 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-08-15 18:21:31,545 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-08-15 18:21:31,545 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-15 18:21:31,545 INFO L85 PathProgramCache]: Analyzing trace with hash -1295461086, now seen corresponding path program 1 times [2024-08-15 18:21:31,545 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-15 18:21:31,546 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1490093398] [2024-08-15 18:21:31,546 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-15 18:21:31,546 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-15 18:21:32,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:21:33,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-08-15 18:21:33,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:21:33,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-08-15 18:21:33,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:21:33,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-08-15 18:21:33,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:21:33,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2024-08-15 18:21:33,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:21:33,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2024-08-15 18:21:33,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:21:33,867 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2024-08-15 18:21:33,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:21:33,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 264 [2024-08-15 18:21:33,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:21:33,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 303 [2024-08-15 18:21:33,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:21:33,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 317 [2024-08-15 18:21:33,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:21:33,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 403 [2024-08-15 18:21:33,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:21:33,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 442 [2024-08-15 18:21:33,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:21:33,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 456 [2024-08-15 18:21:33,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:21:33,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 542 [2024-08-15 18:21:33,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:21:33,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 581 [2024-08-15 18:21:33,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:21:33,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 595 [2024-08-15 18:21:33,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:21:33,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 681 [2024-08-15 18:21:33,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:21:33,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 720 [2024-08-15 18:21:33,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:21:33,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 734 [2024-08-15 18:21:33,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:21:33,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 820 [2024-08-15 18:21:33,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:21:33,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 859 [2024-08-15 18:21:33,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:21:33,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 873 [2024-08-15 18:21:33,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:21:33,922 INFO L134 CoverageAnalysis]: Checked inductivity of 2953 backedges. 24 proven. 72 refuted. 0 times theorem prover too weak. 2857 trivial. 0 not checked. [2024-08-15 18:21:33,923 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-15 18:21:33,923 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1490093398] [2024-08-15 18:21:33,923 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1490093398] provided 0 perfect and 1 imperfect interpolant sequences [2024-08-15 18:21:33,924 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [129197204] [2024-08-15 18:21:33,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-15 18:21:33,924 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-15 18:21:33,924 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-08-15 18:21:33,926 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-08-15 18:21:33,927 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-08-15 18:21:35,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:21:35,249 INFO L262 TraceCheckSpWp]: Trace formula consists of 5131 conjuncts, 8 conjunts are in the unsatisfiable core [2024-08-15 18:21:35,277 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-08-15 18:21:35,467 INFO L134 CoverageAnalysis]: Checked inductivity of 2953 backedges. 124 proven. 0 refuted. 0 times theorem prover too weak. 2829 trivial. 0 not checked. [2024-08-15 18:21:35,468 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-08-15 18:21:35,468 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [129197204] provided 1 perfect and 0 imperfect interpolant sequences [2024-08-15 18:21:35,468 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-08-15 18:21:35,468 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 7 [2024-08-15 18:21:35,469 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [320460167] [2024-08-15 18:21:35,473 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-08-15 18:21:35,474 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-08-15 18:21:35,474 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-15 18:21:35,475 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-08-15 18:21:35,475 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-08-15 18:21:35,475 INFO L87 Difference]: Start difference. First operand 1469 states and 2351 transitions. Second operand has 4 states, 4 states have (on average 40.25) internal successors, (161), 4 states have internal predecessors, (161), 3 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2024-08-15 18:21:35,584 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-08-15 18:21:35,585 INFO L93 Difference]: Finished difference Result 1469 states and 2335 transitions. [2024-08-15 18:21:35,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-15 18:21:35,585 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 40.25) internal successors, (161), 4 states have internal predecessors, (161), 3 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) Word has length 964 [2024-08-15 18:21:35,586 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-08-15 18:21:35,590 INFO L225 Difference]: With dead ends: 1469 [2024-08-15 18:21:35,590 INFO L226 Difference]: Without dead ends: 1469 [2024-08-15 18:21:35,590 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1011 GetRequests, 1005 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-08-15 18:21:35,591 INFO L413 NwaCegarLoop]: 294 mSDtfsCounter, 313 mSDsluCounter, 305 mSDsCounter, 0 mSdLazyCounter, 117 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 315 SdHoareTripleChecker+Valid, 599 SdHoareTripleChecker+Invalid, 118 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 117 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-08-15 18:21:35,591 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [315 Valid, 599 Invalid, 118 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 117 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-08-15 18:21:35,593 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1469 states. [2024-08-15 18:21:35,608 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1469 to 1469. [2024-08-15 18:21:35,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1469 states, 1418 states have (on average 1.6107193229901269) internal successors, (2284), 1420 states have internal predecessors, (2284), 26 states have call successors, (26), 25 states have call predecessors, (26), 24 states have return successors, (25), 23 states have call predecessors, (25), 25 states have call successors, (25) [2024-08-15 18:21:35,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1469 states to 1469 states and 2335 transitions. [2024-08-15 18:21:35,618 INFO L78 Accepts]: Start accepts. Automaton has 1469 states and 2335 transitions. Word has length 964 [2024-08-15 18:21:35,619 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-08-15 18:21:35,619 INFO L495 AbstractCegarLoop]: Abstraction has 1469 states and 2335 transitions. [2024-08-15 18:21:35,619 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 40.25) internal successors, (161), 4 states have internal predecessors, (161), 3 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2024-08-15 18:21:35,619 INFO L276 IsEmpty]: Start isEmpty. Operand 1469 states and 2335 transitions. [2024-08-15 18:21:35,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 972 [2024-08-15 18:21:35,638 INFO L187 NwaCegarLoop]: Found error trace [2024-08-15 18:21:35,639 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-08-15 18:21:35,665 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-08-15 18:21:35,843 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-15 18:21:35,844 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-08-15 18:21:35,844 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-15 18:21:35,845 INFO L85 PathProgramCache]: Analyzing trace with hash -1622188889, now seen corresponding path program 1 times [2024-08-15 18:21:35,845 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-15 18:21:35,845 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [821731079] [2024-08-15 18:21:35,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-15 18:21:35,845 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-15 18:21:36,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:21:37,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-08-15 18:21:37,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:21:37,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-08-15 18:21:37,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:21:37,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-08-15 18:21:37,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:21:37,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2024-08-15 18:21:37,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:21:37,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2024-08-15 18:21:37,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:21:37,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2024-08-15 18:21:37,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:21:37,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 266 [2024-08-15 18:21:37,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:21:37,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 305 [2024-08-15 18:21:37,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:21:37,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 320 [2024-08-15 18:21:37,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:21:37,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 406 [2024-08-15 18:21:37,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:21:37,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 445 [2024-08-15 18:21:37,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:21:37,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 460 [2024-08-15 18:21:37,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:21:37,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 546 [2024-08-15 18:21:37,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:21:37,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 585 [2024-08-15 18:21:37,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:21:37,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 600 [2024-08-15 18:21:37,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:21:37,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 686 [2024-08-15 18:21:37,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:21:37,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 725 [2024-08-15 18:21:37,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:21:37,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 740 [2024-08-15 18:21:37,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:21:37,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 826 [2024-08-15 18:21:37,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:21:37,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 865 [2024-08-15 18:21:37,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:21:37,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 880 [2024-08-15 18:21:37,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:21:37,699 INFO L134 CoverageAnalysis]: Checked inductivity of 2974 backedges. 670 proven. 0 refuted. 0 times theorem prover too weak. 2304 trivial. 0 not checked. [2024-08-15 18:21:37,700 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-15 18:21:37,700 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [821731079] [2024-08-15 18:21:37,701 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [821731079] provided 1 perfect and 0 imperfect interpolant sequences [2024-08-15 18:21:37,701 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-08-15 18:21:37,701 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-08-15 18:21:37,701 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [774802366] [2024-08-15 18:21:37,702 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-08-15 18:21:37,702 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-08-15 18:21:37,702 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-15 18:21:37,703 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-08-15 18:21:37,703 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-08-15 18:21:37,703 INFO L87 Difference]: Start difference. First operand 1469 states and 2335 transitions. Second operand has 5 states, 5 states have (on average 51.4) internal successors, (257), 5 states have internal predecessors, (257), 4 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (7), 4 states have call predecessors, (7), 4 states have call successors, (7) [2024-08-15 18:21:37,840 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-08-15 18:21:37,840 INFO L93 Difference]: Finished difference Result 1469 states and 2328 transitions. [2024-08-15 18:21:37,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-15 18:21:37,841 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 51.4) internal successors, (257), 5 states have internal predecessors, (257), 4 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (7), 4 states have call predecessors, (7), 4 states have call successors, (7) Word has length 971 [2024-08-15 18:21:37,841 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-08-15 18:21:37,845 INFO L225 Difference]: With dead ends: 1469 [2024-08-15 18:21:37,846 INFO L226 Difference]: Without dead ends: 1469 [2024-08-15 18:21:37,846 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-08-15 18:21:37,847 INFO L413 NwaCegarLoop]: 294 mSDtfsCounter, 449 mSDsluCounter, 305 mSDsCounter, 0 mSdLazyCounter, 115 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 450 SdHoareTripleChecker+Valid, 599 SdHoareTripleChecker+Invalid, 116 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 115 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-08-15 18:21:37,847 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [450 Valid, 599 Invalid, 116 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 115 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-08-15 18:21:37,848 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1469 states. [2024-08-15 18:21:37,862 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1469 to 1469. [2024-08-15 18:21:37,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1469 states, 1418 states have (on average 1.6057827926657264) internal successors, (2277), 1420 states have internal predecessors, (2277), 26 states have call successors, (26), 25 states have call predecessors, (26), 24 states have return successors, (25), 23 states have call predecessors, (25), 25 states have call successors, (25) [2024-08-15 18:21:37,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1469 states to 1469 states and 2328 transitions. [2024-08-15 18:21:37,868 INFO L78 Accepts]: Start accepts. Automaton has 1469 states and 2328 transitions. Word has length 971 [2024-08-15 18:21:37,868 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-08-15 18:21:37,869 INFO L495 AbstractCegarLoop]: Abstraction has 1469 states and 2328 transitions. [2024-08-15 18:21:37,869 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 51.4) internal successors, (257), 5 states have internal predecessors, (257), 4 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (7), 4 states have call predecessors, (7), 4 states have call successors, (7) [2024-08-15 18:21:37,869 INFO L276 IsEmpty]: Start isEmpty. Operand 1469 states and 2328 transitions. [2024-08-15 18:21:37,875 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 978 [2024-08-15 18:21:37,875 INFO L187 NwaCegarLoop]: Found error trace [2024-08-15 18:21:37,875 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-08-15 18:21:37,876 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-08-15 18:21:37,876 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-08-15 18:21:37,876 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-15 18:21:37,877 INFO L85 PathProgramCache]: Analyzing trace with hash 652445199, now seen corresponding path program 1 times [2024-08-15 18:21:37,877 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-15 18:21:37,877 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2119600220] [2024-08-15 18:21:37,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-15 18:21:37,877 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-15 18:21:38,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:21:39,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-08-15 18:21:39,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:21:39,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-08-15 18:21:39,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:21:39,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-08-15 18:21:39,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:21:39,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2024-08-15 18:21:39,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:21:39,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2024-08-15 18:21:39,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:21:39,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2024-08-15 18:21:39,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:21:39,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 267 [2024-08-15 18:21:39,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:21:39,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 307 [2024-08-15 18:21:39,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:21:39,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 322 [2024-08-15 18:21:39,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:21:39,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 408 [2024-08-15 18:21:39,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:21:39,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 448 [2024-08-15 18:21:39,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:21:39,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 463 [2024-08-15 18:21:39,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:21:39,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 549 [2024-08-15 18:21:39,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:21:39,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 589 [2024-08-15 18:21:39,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:21:39,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 604 [2024-08-15 18:21:39,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:21:39,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 690 [2024-08-15 18:21:39,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:21:39,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 730 [2024-08-15 18:21:39,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:21:39,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 745 [2024-08-15 18:21:39,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:21:39,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 831 [2024-08-15 18:21:39,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:21:39,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 871 [2024-08-15 18:21:39,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:21:39,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 886 [2024-08-15 18:21:39,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:21:39,583 INFO L134 CoverageAnalysis]: Checked inductivity of 2989 backedges. 685 proven. 0 refuted. 0 times theorem prover too weak. 2304 trivial. 0 not checked. [2024-08-15 18:21:39,583 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-15 18:21:39,584 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2119600220] [2024-08-15 18:21:39,584 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2119600220] provided 1 perfect and 0 imperfect interpolant sequences [2024-08-15 18:21:39,584 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-08-15 18:21:39,584 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-08-15 18:21:39,584 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [258315194] [2024-08-15 18:21:39,584 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-08-15 18:21:39,585 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-08-15 18:21:39,585 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-15 18:21:39,590 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-08-15 18:21:39,590 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-08-15 18:21:39,590 INFO L87 Difference]: Start difference. First operand 1469 states and 2328 transitions. Second operand has 5 states, 5 states have (on average 52.2) internal successors, (261), 5 states have internal predecessors, (261), 4 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (7), 4 states have call predecessors, (7), 4 states have call successors, (7) [2024-08-15 18:21:39,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-08-15 18:21:39,711 INFO L93 Difference]: Finished difference Result 1469 states and 2321 transitions. [2024-08-15 18:21:39,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-15 18:21:39,713 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 52.2) internal successors, (261), 5 states have internal predecessors, (261), 4 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (7), 4 states have call predecessors, (7), 4 states have call successors, (7) Word has length 977 [2024-08-15 18:21:39,714 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-08-15 18:21:39,720 INFO L225 Difference]: With dead ends: 1469 [2024-08-15 18:21:39,721 INFO L226 Difference]: Without dead ends: 1469 [2024-08-15 18:21:39,722 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-08-15 18:21:39,723 INFO L413 NwaCegarLoop]: 294 mSDtfsCounter, 441 mSDsluCounter, 305 mSDsCounter, 0 mSdLazyCounter, 113 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 442 SdHoareTripleChecker+Valid, 599 SdHoareTripleChecker+Invalid, 114 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 113 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-08-15 18:21:39,724 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [442 Valid, 599 Invalid, 114 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 113 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-08-15 18:21:39,728 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1469 states. [2024-08-15 18:21:39,749 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1469 to 1469. [2024-08-15 18:21:39,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1469 states, 1418 states have (on average 1.6008462623413258) internal successors, (2270), 1420 states have internal predecessors, (2270), 26 states have call successors, (26), 25 states have call predecessors, (26), 24 states have return successors, (25), 23 states have call predecessors, (25), 25 states have call successors, (25) [2024-08-15 18:21:39,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1469 states to 1469 states and 2321 transitions. [2024-08-15 18:21:39,758 INFO L78 Accepts]: Start accepts. Automaton has 1469 states and 2321 transitions. Word has length 977 [2024-08-15 18:21:39,758 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-08-15 18:21:39,758 INFO L495 AbstractCegarLoop]: Abstraction has 1469 states and 2321 transitions. [2024-08-15 18:21:39,759 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 52.2) internal successors, (261), 5 states have internal predecessors, (261), 4 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (7), 4 states have call predecessors, (7), 4 states have call successors, (7) [2024-08-15 18:21:39,759 INFO L276 IsEmpty]: Start isEmpty. Operand 1469 states and 2321 transitions. [2024-08-15 18:21:39,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 984 [2024-08-15 18:21:39,768 INFO L187 NwaCegarLoop]: Found error trace [2024-08-15 18:21:39,769 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-08-15 18:21:39,769 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-08-15 18:21:39,769 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-08-15 18:21:39,770 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-15 18:21:39,770 INFO L85 PathProgramCache]: Analyzing trace with hash 183701497, now seen corresponding path program 1 times [2024-08-15 18:21:39,770 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-15 18:21:39,770 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [519141722] [2024-08-15 18:21:39,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-15 18:21:39,770 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-15 18:21:40,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:21:41,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-08-15 18:21:41,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:21:41,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-08-15 18:21:41,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:21:41,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-08-15 18:21:41,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:21:41,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2024-08-15 18:21:41,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:21:41,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2024-08-15 18:21:41,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:21:41,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2024-08-15 18:21:41,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:21:41,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 268 [2024-08-15 18:21:41,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:21:41,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 309 [2024-08-15 18:21:41,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:21:41,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 324 [2024-08-15 18:21:41,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:21:41,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 410 [2024-08-15 18:21:41,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:21:41,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 451 [2024-08-15 18:21:41,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:21:41,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 466 [2024-08-15 18:21:41,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:21:41,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 552 [2024-08-15 18:21:41,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:21:41,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 593 [2024-08-15 18:21:41,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:21:41,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 608 [2024-08-15 18:21:41,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:21:41,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 694 [2024-08-15 18:21:41,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:21:41,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 735 [2024-08-15 18:21:41,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:21:41,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 750 [2024-08-15 18:21:41,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:21:41,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 836 [2024-08-15 18:21:41,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:21:41,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 877 [2024-08-15 18:21:41,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:21:41,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 892 [2024-08-15 18:21:41,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:21:41,778 INFO L134 CoverageAnalysis]: Checked inductivity of 3004 backedges. 700 proven. 0 refuted. 0 times theorem prover too weak. 2304 trivial. 0 not checked. [2024-08-15 18:21:41,778 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-15 18:21:41,778 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [519141722] [2024-08-15 18:21:41,778 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [519141722] provided 1 perfect and 0 imperfect interpolant sequences [2024-08-15 18:21:41,778 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-08-15 18:21:41,779 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-08-15 18:21:41,779 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1980399871] [2024-08-15 18:21:41,779 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-08-15 18:21:41,780 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-08-15 18:21:41,780 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-15 18:21:41,782 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-08-15 18:21:41,782 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-08-15 18:21:41,782 INFO L87 Difference]: Start difference. First operand 1469 states and 2321 transitions. Second operand has 5 states, 5 states have (on average 53.0) internal successors, (265), 5 states have internal predecessors, (265), 4 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (7), 4 states have call predecessors, (7), 4 states have call successors, (7) [2024-08-15 18:21:41,904 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-08-15 18:21:41,904 INFO L93 Difference]: Finished difference Result 1469 states and 2314 transitions. [2024-08-15 18:21:41,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-15 18:21:41,905 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 53.0) internal successors, (265), 5 states have internal predecessors, (265), 4 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (7), 4 states have call predecessors, (7), 4 states have call successors, (7) Word has length 983 [2024-08-15 18:21:41,905 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-08-15 18:21:41,909 INFO L225 Difference]: With dead ends: 1469 [2024-08-15 18:21:41,909 INFO L226 Difference]: Without dead ends: 1469 [2024-08-15 18:21:41,910 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-08-15 18:21:41,910 INFO L413 NwaCegarLoop]: 294 mSDtfsCounter, 227 mSDsluCounter, 321 mSDsCounter, 0 mSdLazyCounter, 111 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 228 SdHoareTripleChecker+Valid, 615 SdHoareTripleChecker+Invalid, 112 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 111 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-08-15 18:21:41,911 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [228 Valid, 615 Invalid, 112 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 111 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-08-15 18:21:41,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1469 states. [2024-08-15 18:21:41,934 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1469 to 1469. [2024-08-15 18:21:41,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1469 states, 1418 states have (on average 1.5959097320169253) internal successors, (2263), 1420 states have internal predecessors, (2263), 26 states have call successors, (26), 25 states have call predecessors, (26), 24 states have return successors, (25), 23 states have call predecessors, (25), 25 states have call successors, (25) [2024-08-15 18:21:41,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1469 states to 1469 states and 2314 transitions. [2024-08-15 18:21:41,940 INFO L78 Accepts]: Start accepts. Automaton has 1469 states and 2314 transitions. Word has length 983 [2024-08-15 18:21:41,940 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-08-15 18:21:41,941 INFO L495 AbstractCegarLoop]: Abstraction has 1469 states and 2314 transitions. [2024-08-15 18:21:41,941 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 53.0) internal successors, (265), 5 states have internal predecessors, (265), 4 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (7), 4 states have call predecessors, (7), 4 states have call successors, (7) [2024-08-15 18:21:41,941 INFO L276 IsEmpty]: Start isEmpty. Operand 1469 states and 2314 transitions. [2024-08-15 18:21:41,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 990 [2024-08-15 18:21:41,953 INFO L187 NwaCegarLoop]: Found error trace [2024-08-15 18:21:41,953 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-08-15 18:21:41,954 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-08-15 18:21:41,954 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-08-15 18:21:41,954 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-15 18:21:41,955 INFO L85 PathProgramCache]: Analyzing trace with hash -677568529, now seen corresponding path program 1 times [2024-08-15 18:21:41,955 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-15 18:21:41,955 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [967948747] [2024-08-15 18:21:41,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-15 18:21:41,955 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-15 18:21:42,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:21:43,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-08-15 18:21:43,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:21:43,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-08-15 18:21:43,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:21:43,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-08-15 18:21:43,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:21:43,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2024-08-15 18:21:43,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:21:43,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2024-08-15 18:21:43,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:21:43,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2024-08-15 18:21:43,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:21:43,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 269 [2024-08-15 18:21:43,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:21:43,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 311 [2024-08-15 18:21:43,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:21:43,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 326 [2024-08-15 18:21:43,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:21:43,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 412 [2024-08-15 18:21:43,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:21:43,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 454 [2024-08-15 18:21:43,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:21:43,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 469 [2024-08-15 18:21:43,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:21:43,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 555 [2024-08-15 18:21:43,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:21:43,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 597 [2024-08-15 18:21:43,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:21:43,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 612 [2024-08-15 18:21:43,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:21:43,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 698 [2024-08-15 18:21:43,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:21:43,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 740 [2024-08-15 18:21:43,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:21:43,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 755 [2024-08-15 18:21:43,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:21:43,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 841 [2024-08-15 18:21:43,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:21:43,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 883 [2024-08-15 18:21:43,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:21:43,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 898 [2024-08-15 18:21:43,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:21:43,432 INFO L134 CoverageAnalysis]: Checked inductivity of 3019 backedges. 755 proven. 0 refuted. 0 times theorem prover too weak. 2264 trivial. 0 not checked. [2024-08-15 18:21:43,432 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-15 18:21:43,432 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [967948747] [2024-08-15 18:21:43,433 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [967948747] provided 1 perfect and 0 imperfect interpolant sequences [2024-08-15 18:21:43,433 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-08-15 18:21:43,433 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-08-15 18:21:43,433 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [627326579] [2024-08-15 18:21:43,433 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-08-15 18:21:43,434 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-08-15 18:21:43,434 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-15 18:21:43,435 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-08-15 18:21:43,435 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-08-15 18:21:43,435 INFO L87 Difference]: Start difference. First operand 1469 states and 2314 transitions. Second operand has 5 states, 5 states have (on average 55.4) internal successors, (277), 5 states have internal predecessors, (277), 4 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (7), 4 states have call predecessors, (7), 4 states have call successors, (7) [2024-08-15 18:21:43,544 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-08-15 18:21:43,545 INFO L93 Difference]: Finished difference Result 1469 states and 2307 transitions. [2024-08-15 18:21:43,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-15 18:21:43,545 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 55.4) internal successors, (277), 5 states have internal predecessors, (277), 4 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (7), 4 states have call predecessors, (7), 4 states have call successors, (7) Word has length 989 [2024-08-15 18:21:43,546 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-08-15 18:21:43,551 INFO L225 Difference]: With dead ends: 1469 [2024-08-15 18:21:43,551 INFO L226 Difference]: Without dead ends: 1469 [2024-08-15 18:21:43,552 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-08-15 18:21:43,553 INFO L413 NwaCegarLoop]: 294 mSDtfsCounter, 409 mSDsluCounter, 305 mSDsCounter, 0 mSdLazyCounter, 109 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 410 SdHoareTripleChecker+Valid, 599 SdHoareTripleChecker+Invalid, 110 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 109 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-08-15 18:21:43,553 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [410 Valid, 599 Invalid, 110 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 109 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-08-15 18:21:43,555 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1469 states. [2024-08-15 18:21:43,574 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1469 to 1469. [2024-08-15 18:21:43,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1469 states, 1418 states have (on average 1.5909732016925247) internal successors, (2256), 1420 states have internal predecessors, (2256), 26 states have call successors, (26), 25 states have call predecessors, (26), 24 states have return successors, (25), 23 states have call predecessors, (25), 25 states have call successors, (25) [2024-08-15 18:21:43,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1469 states to 1469 states and 2307 transitions. [2024-08-15 18:21:43,581 INFO L78 Accepts]: Start accepts. Automaton has 1469 states and 2307 transitions. Word has length 989 [2024-08-15 18:21:43,582 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-08-15 18:21:43,582 INFO L495 AbstractCegarLoop]: Abstraction has 1469 states and 2307 transitions. [2024-08-15 18:21:43,582 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 55.4) internal successors, (277), 5 states have internal predecessors, (277), 4 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (7), 4 states have call predecessors, (7), 4 states have call successors, (7) [2024-08-15 18:21:43,582 INFO L276 IsEmpty]: Start isEmpty. Operand 1469 states and 2307 transitions. [2024-08-15 18:21:43,589 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 996 [2024-08-15 18:21:43,589 INFO L187 NwaCegarLoop]: Found error trace [2024-08-15 18:21:43,590 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-08-15 18:21:43,590 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-08-15 18:21:43,590 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-08-15 18:21:43,590 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-15 18:21:43,591 INFO L85 PathProgramCache]: Analyzing trace with hash 1156176659, now seen corresponding path program 1 times [2024-08-15 18:21:43,591 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-15 18:21:43,591 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1532961613] [2024-08-15 18:21:43,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-15 18:21:43,591 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-15 18:21:44,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:21:45,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-08-15 18:21:45,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:21:45,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-08-15 18:21:45,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:21:45,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-08-15 18:21:45,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:21:45,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2024-08-15 18:21:45,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:21:45,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2024-08-15 18:21:45,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:21:45,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2024-08-15 18:21:45,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:21:45,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 270 [2024-08-15 18:21:45,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:21:45,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 313 [2024-08-15 18:21:45,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:21:45,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 328 [2024-08-15 18:21:45,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:21:45,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 414 [2024-08-15 18:21:45,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:21:45,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 457 [2024-08-15 18:21:45,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:21:45,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 472 [2024-08-15 18:21:45,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:21:45,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 558 [2024-08-15 18:21:45,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:21:45,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 601 [2024-08-15 18:21:45,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:21:45,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 616 [2024-08-15 18:21:45,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:21:45,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 702 [2024-08-15 18:21:45,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:21:45,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 745 [2024-08-15 18:21:45,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:21:45,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 760 [2024-08-15 18:21:45,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:21:45,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 846 [2024-08-15 18:21:45,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:21:45,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 889 [2024-08-15 18:21:45,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:21:45,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 904 [2024-08-15 18:21:45,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:21:45,173 INFO L134 CoverageAnalysis]: Checked inductivity of 3034 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 2998 trivial. 0 not checked. [2024-08-15 18:21:45,174 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-15 18:21:45,175 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1532961613] [2024-08-15 18:21:45,175 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1532961613] provided 1 perfect and 0 imperfect interpolant sequences [2024-08-15 18:21:45,176 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-08-15 18:21:45,176 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-08-15 18:21:45,176 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1031739153] [2024-08-15 18:21:45,176 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-08-15 18:21:45,177 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-08-15 18:21:45,177 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-15 18:21:45,177 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-08-15 18:21:45,177 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-08-15 18:21:45,178 INFO L87 Difference]: Start difference. First operand 1469 states and 2307 transitions. Second operand has 4 states, 4 states have (on average 39.0) internal successors, (156), 4 states have internal predecessors, (156), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-08-15 18:21:45,199 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-08-15 18:21:45,200 INFO L93 Difference]: Finished difference Result 1483 states and 2321 transitions. [2024-08-15 18:21:45,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-15 18:21:45,200 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 39.0) internal successors, (156), 4 states have internal predecessors, (156), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 995 [2024-08-15 18:21:45,202 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-08-15 18:21:45,206 INFO L225 Difference]: With dead ends: 1483 [2024-08-15 18:21:45,206 INFO L226 Difference]: Without dead ends: 1483 [2024-08-15 18:21:45,206 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-08-15 18:21:45,207 INFO L413 NwaCegarLoop]: 345 mSDtfsCounter, 0 mSDsluCounter, 683 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1028 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-08-15 18:21:45,208 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1028 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-08-15 18:21:45,209 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1483 states. [2024-08-15 18:21:45,232 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1483 to 1483. [2024-08-15 18:21:45,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1483 states, 1432 states have (on average 1.585195530726257) internal successors, (2270), 1434 states have internal predecessors, (2270), 26 states have call successors, (26), 25 states have call predecessors, (26), 24 states have return successors, (25), 23 states have call predecessors, (25), 25 states have call successors, (25) [2024-08-15 18:21:45,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1483 states to 1483 states and 2321 transitions. [2024-08-15 18:21:45,239 INFO L78 Accepts]: Start accepts. Automaton has 1483 states and 2321 transitions. Word has length 995 [2024-08-15 18:21:45,240 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-08-15 18:21:45,240 INFO L495 AbstractCegarLoop]: Abstraction has 1483 states and 2321 transitions. [2024-08-15 18:21:45,241 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 39.0) internal successors, (156), 4 states have internal predecessors, (156), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-08-15 18:21:45,241 INFO L276 IsEmpty]: Start isEmpty. Operand 1483 states and 2321 transitions. [2024-08-15 18:21:45,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 997 [2024-08-15 18:21:45,248 INFO L187 NwaCegarLoop]: Found error trace [2024-08-15 18:21:45,248 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-08-15 18:21:45,248 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-08-15 18:21:45,248 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-08-15 18:21:45,249 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-15 18:21:45,249 INFO L85 PathProgramCache]: Analyzing trace with hash 585528938, now seen corresponding path program 1 times [2024-08-15 18:21:45,249 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-15 18:21:45,249 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [460353960] [2024-08-15 18:21:45,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-15 18:21:45,249 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-15 18:21:45,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:21:47,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-08-15 18:21:47,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:21:47,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-08-15 18:21:47,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:21:47,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-08-15 18:21:47,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:21:47,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2024-08-15 18:21:47,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:21:47,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2024-08-15 18:21:47,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:21:47,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2024-08-15 18:21:47,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:21:47,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 270 [2024-08-15 18:21:47,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:21:47,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 313 [2024-08-15 18:21:47,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:21:47,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 328 [2024-08-15 18:21:47,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:21:47,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 414 [2024-08-15 18:21:47,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:21:47,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 457 [2024-08-15 18:21:47,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:21:47,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 472 [2024-08-15 18:21:47,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:21:47,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 558 [2024-08-15 18:21:47,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:21:47,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 601 [2024-08-15 18:21:47,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:21:47,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 616 [2024-08-15 18:21:47,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:21:47,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 702 [2024-08-15 18:21:47,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:21:47,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 745 [2024-08-15 18:21:47,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:21:47,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 760 [2024-08-15 18:21:47,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:21:47,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 846 [2024-08-15 18:21:47,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:21:47,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 889 [2024-08-15 18:21:47,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:21:47,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 904 [2024-08-15 18:21:47,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:21:47,251 INFO L134 CoverageAnalysis]: Checked inductivity of 3034 backedges. 150 proven. 0 refuted. 0 times theorem prover too weak. 2884 trivial. 0 not checked. [2024-08-15 18:21:47,251 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-15 18:21:47,252 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [460353960] [2024-08-15 18:21:47,252 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [460353960] provided 1 perfect and 0 imperfect interpolant sequences [2024-08-15 18:21:47,252 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-08-15 18:21:47,252 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-08-15 18:21:47,252 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [822703959] [2024-08-15 18:21:47,252 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-08-15 18:21:47,253 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-08-15 18:21:47,253 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-15 18:21:47,254 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-08-15 18:21:47,254 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-08-15 18:21:47,254 INFO L87 Difference]: Start difference. First operand 1483 states and 2321 transitions. Second operand has 4 states, 4 states have (on average 44.0) internal successors, (176), 4 states have internal predecessors, (176), 3 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2024-08-15 18:21:47,297 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-08-15 18:21:47,298 INFO L93 Difference]: Finished difference Result 1483 states and 2314 transitions. [2024-08-15 18:21:47,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-15 18:21:47,299 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 44.0) internal successors, (176), 4 states have internal predecessors, (176), 3 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) Word has length 996 [2024-08-15 18:21:47,299 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-08-15 18:21:47,303 INFO L225 Difference]: With dead ends: 1483 [2024-08-15 18:21:47,303 INFO L226 Difference]: Without dead ends: 1483 [2024-08-15 18:21:47,303 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-08-15 18:21:47,305 INFO L413 NwaCegarLoop]: 334 mSDtfsCounter, 298 mSDsluCounter, 345 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 299 SdHoareTripleChecker+Valid, 679 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-08-15 18:21:47,305 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [299 Valid, 679 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-08-15 18:21:47,306 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1483 states. [2024-08-15 18:21:47,324 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1483 to 1483. [2024-08-15 18:21:47,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1483 states, 1432 states have (on average 1.5803072625698324) internal successors, (2263), 1434 states have internal predecessors, (2263), 26 states have call successors, (26), 25 states have call predecessors, (26), 24 states have return successors, (25), 23 states have call predecessors, (25), 25 states have call successors, (25) [2024-08-15 18:21:47,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1483 states to 1483 states and 2314 transitions. [2024-08-15 18:21:47,335 INFO L78 Accepts]: Start accepts. Automaton has 1483 states and 2314 transitions. Word has length 996 [2024-08-15 18:21:47,336 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-08-15 18:21:47,336 INFO L495 AbstractCegarLoop]: Abstraction has 1483 states and 2314 transitions. [2024-08-15 18:21:47,336 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 44.0) internal successors, (176), 4 states have internal predecessors, (176), 3 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2024-08-15 18:21:47,336 INFO L276 IsEmpty]: Start isEmpty. Operand 1483 states and 2314 transitions. [2024-08-15 18:21:47,342 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1004 [2024-08-15 18:21:47,343 INFO L187 NwaCegarLoop]: Found error trace [2024-08-15 18:21:47,343 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-08-15 18:21:47,343 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-08-15 18:21:47,343 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-08-15 18:21:47,344 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-15 18:21:47,344 INFO L85 PathProgramCache]: Analyzing trace with hash -568795325, now seen corresponding path program 1 times [2024-08-15 18:21:47,344 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-15 18:21:47,344 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [936834627] [2024-08-15 18:21:47,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-15 18:21:47,344 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-15 18:21:47,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:21:48,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-08-15 18:21:48,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:21:48,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-08-15 18:21:48,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:21:48,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-08-15 18:21:48,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:21:48,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2024-08-15 18:21:48,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:21:48,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2024-08-15 18:21:48,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:21:48,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2024-08-15 18:21:48,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:21:48,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 272 [2024-08-15 18:21:48,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:21:48,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 315 [2024-08-15 18:21:48,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:21:48,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 330 [2024-08-15 18:21:48,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:21:48,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 417 [2024-08-15 18:21:48,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:21:48,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 460 [2024-08-15 18:21:48,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:21:48,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 475 [2024-08-15 18:21:48,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:21:48,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 562 [2024-08-15 18:21:48,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:21:48,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 605 [2024-08-15 18:21:48,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:21:48,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 620 [2024-08-15 18:21:48,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:21:48,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 707 [2024-08-15 18:21:48,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:21:48,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 750 [2024-08-15 18:21:48,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:21:48,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 765 [2024-08-15 18:21:48,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:21:48,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 852 [2024-08-15 18:21:48,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:21:48,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 895 [2024-08-15 18:21:48,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:21:48,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 910 [2024-08-15 18:21:48,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:21:48,861 INFO L134 CoverageAnalysis]: Checked inductivity of 3055 backedges. 646 proven. 0 refuted. 0 times theorem prover too weak. 2409 trivial. 0 not checked. [2024-08-15 18:21:48,861 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-15 18:21:48,861 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [936834627] [2024-08-15 18:21:48,861 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [936834627] provided 1 perfect and 0 imperfect interpolant sequences [2024-08-15 18:21:48,861 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-08-15 18:21:48,862 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-08-15 18:21:48,862 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1044579036] [2024-08-15 18:21:48,862 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-08-15 18:21:48,866 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-08-15 18:21:48,866 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-15 18:21:48,867 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-08-15 18:21:48,867 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-08-15 18:21:48,868 INFO L87 Difference]: Start difference. First operand 1483 states and 2314 transitions. Second operand has 5 states, 5 states have (on average 51.8) internal successors, (259), 5 states have internal predecessors, (259), 4 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (7), 4 states have call predecessors, (7), 4 states have call successors, (7) [2024-08-15 18:21:48,913 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-08-15 18:21:48,913 INFO L93 Difference]: Finished difference Result 1483 states and 2307 transitions. [2024-08-15 18:21:48,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-15 18:21:48,914 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 51.8) internal successors, (259), 5 states have internal predecessors, (259), 4 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (7), 4 states have call predecessors, (7), 4 states have call successors, (7) Word has length 1003 [2024-08-15 18:21:48,914 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-08-15 18:21:48,918 INFO L225 Difference]: With dead ends: 1483 [2024-08-15 18:21:48,918 INFO L226 Difference]: Without dead ends: 1483 [2024-08-15 18:21:48,918 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-08-15 18:21:48,919 INFO L413 NwaCegarLoop]: 334 mSDtfsCounter, 245 mSDsluCounter, 361 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 247 SdHoareTripleChecker+Valid, 695 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-08-15 18:21:48,919 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [247 Valid, 695 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-08-15 18:21:48,921 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1483 states. [2024-08-15 18:21:48,939 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1483 to 1483. [2024-08-15 18:21:48,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1483 states, 1432 states have (on average 1.5754189944134078) internal successors, (2256), 1434 states have internal predecessors, (2256), 26 states have call successors, (26), 25 states have call predecessors, (26), 24 states have return successors, (25), 23 states have call predecessors, (25), 25 states have call successors, (25) [2024-08-15 18:21:48,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1483 states to 1483 states and 2307 transitions. [2024-08-15 18:21:48,945 INFO L78 Accepts]: Start accepts. Automaton has 1483 states and 2307 transitions. Word has length 1003 [2024-08-15 18:21:48,945 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-08-15 18:21:48,945 INFO L495 AbstractCegarLoop]: Abstraction has 1483 states and 2307 transitions. [2024-08-15 18:21:48,946 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 51.8) internal successors, (259), 5 states have internal predecessors, (259), 4 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (7), 4 states have call predecessors, (7), 4 states have call successors, (7) [2024-08-15 18:21:48,946 INFO L276 IsEmpty]: Start isEmpty. Operand 1483 states and 2307 transitions. [2024-08-15 18:21:48,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1010 [2024-08-15 18:21:48,958 INFO L187 NwaCegarLoop]: Found error trace [2024-08-15 18:21:48,958 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-08-15 18:21:48,959 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-08-15 18:21:48,959 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-08-15 18:21:48,959 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-15 18:21:48,959 INFO L85 PathProgramCache]: Analyzing trace with hash 2039468511, now seen corresponding path program 1 times [2024-08-15 18:21:48,959 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-15 18:21:48,960 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1211952959] [2024-08-15 18:21:48,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-15 18:21:48,960 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-15 18:21:49,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:21:50,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-08-15 18:21:50,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:21:50,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-08-15 18:21:50,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:21:50,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-08-15 18:21:50,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:21:50,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2024-08-15 18:21:50,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:21:50,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2024-08-15 18:21:50,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:21:50,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2024-08-15 18:21:50,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:21:50,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 273 [2024-08-15 18:21:50,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:21:50,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 317 [2024-08-15 18:21:50,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:21:50,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 332 [2024-08-15 18:21:50,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:21:50,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 419 [2024-08-15 18:21:50,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:21:50,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 463 [2024-08-15 18:21:50,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:21:50,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 478 [2024-08-15 18:21:50,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:21:50,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 565 [2024-08-15 18:21:50,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:21:50,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 609 [2024-08-15 18:21:50,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:21:50,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 624 [2024-08-15 18:21:50,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:21:50,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 711 [2024-08-15 18:21:50,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:21:50,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 755 [2024-08-15 18:21:50,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:21:50,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 770 [2024-08-15 18:21:50,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:21:50,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 857 [2024-08-15 18:21:50,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:21:50,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 901 [2024-08-15 18:21:50,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:21:50,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 916 [2024-08-15 18:21:50,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:21:50,716 INFO L134 CoverageAnalysis]: Checked inductivity of 3070 backedges. 661 proven. 0 refuted. 0 times theorem prover too weak. 2409 trivial. 0 not checked. [2024-08-15 18:21:50,716 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-15 18:21:50,716 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1211952959] [2024-08-15 18:21:50,716 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1211952959] provided 1 perfect and 0 imperfect interpolant sequences [2024-08-15 18:21:50,716 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-08-15 18:21:50,716 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-08-15 18:21:50,717 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [700478428] [2024-08-15 18:21:50,717 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-08-15 18:21:50,717 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-08-15 18:21:50,717 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-15 18:21:50,718 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-08-15 18:21:50,718 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-08-15 18:21:50,718 INFO L87 Difference]: Start difference. First operand 1483 states and 2307 transitions. Second operand has 5 states, 5 states have (on average 52.6) internal successors, (263), 5 states have internal predecessors, (263), 4 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (7), 4 states have call predecessors, (7), 4 states have call successors, (7) [2024-08-15 18:21:50,767 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-08-15 18:21:50,768 INFO L93 Difference]: Finished difference Result 1483 states and 2300 transitions. [2024-08-15 18:21:50,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-15 18:21:50,768 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 52.6) internal successors, (263), 5 states have internal predecessors, (263), 4 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (7), 4 states have call predecessors, (7), 4 states have call successors, (7) Word has length 1009 [2024-08-15 18:21:50,769 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-08-15 18:21:50,774 INFO L225 Difference]: With dead ends: 1483 [2024-08-15 18:21:50,774 INFO L226 Difference]: Without dead ends: 1483 [2024-08-15 18:21:50,775 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-08-15 18:21:50,776 INFO L413 NwaCegarLoop]: 334 mSDtfsCounter, 241 mSDsluCounter, 361 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 243 SdHoareTripleChecker+Valid, 695 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-08-15 18:21:50,777 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [243 Valid, 695 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-08-15 18:21:50,778 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1483 states. [2024-08-15 18:21:50,797 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1483 to 1483. [2024-08-15 18:21:50,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1483 states, 1432 states have (on average 1.5705307262569832) internal successors, (2249), 1434 states have internal predecessors, (2249), 26 states have call successors, (26), 25 states have call predecessors, (26), 24 states have return successors, (25), 23 states have call predecessors, (25), 25 states have call successors, (25) [2024-08-15 18:21:50,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1483 states to 1483 states and 2300 transitions. [2024-08-15 18:21:50,803 INFO L78 Accepts]: Start accepts. Automaton has 1483 states and 2300 transitions. Word has length 1009 [2024-08-15 18:21:50,803 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-08-15 18:21:50,803 INFO L495 AbstractCegarLoop]: Abstraction has 1483 states and 2300 transitions. [2024-08-15 18:21:50,803 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 52.6) internal successors, (263), 5 states have internal predecessors, (263), 4 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (7), 4 states have call predecessors, (7), 4 states have call successors, (7) [2024-08-15 18:21:50,803 INFO L276 IsEmpty]: Start isEmpty. Operand 1483 states and 2300 transitions. [2024-08-15 18:21:50,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1016 [2024-08-15 18:21:50,809 INFO L187 NwaCegarLoop]: Found error trace [2024-08-15 18:21:50,810 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-08-15 18:21:50,810 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-08-15 18:21:50,810 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-08-15 18:21:50,811 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-15 18:21:50,811 INFO L85 PathProgramCache]: Analyzing trace with hash 1021313379, now seen corresponding path program 1 times [2024-08-15 18:21:50,811 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-15 18:21:50,811 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1636516758] [2024-08-15 18:21:50,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-15 18:21:50,811 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-15 18:21:52,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:21:53,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-08-15 18:21:53,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:21:53,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-08-15 18:21:53,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:21:53,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-08-15 18:21:53,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:21:53,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2024-08-15 18:21:53,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:21:53,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2024-08-15 18:21:53,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:21:53,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2024-08-15 18:21:53,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:21:53,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 274 [2024-08-15 18:21:53,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:21:53,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 319 [2024-08-15 18:21:53,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:21:53,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 334 [2024-08-15 18:21:53,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:21:53,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 421 [2024-08-15 18:21:53,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:21:53,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 466 [2024-08-15 18:21:53,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:21:53,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 481 [2024-08-15 18:21:53,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:21:53,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 568 [2024-08-15 18:21:53,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:21:53,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 613 [2024-08-15 18:21:53,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:21:53,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 628 [2024-08-15 18:21:53,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:21:53,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 715 [2024-08-15 18:21:53,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:21:53,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 760 [2024-08-15 18:21:53,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:21:53,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 775 [2024-08-15 18:21:53,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:21:53,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 862 [2024-08-15 18:21:53,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:21:53,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 907 [2024-08-15 18:21:53,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:21:53,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 922 [2024-08-15 18:21:53,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:21:53,387 INFO L134 CoverageAnalysis]: Checked inductivity of 3085 backedges. 156 proven. 0 refuted. 0 times theorem prover too weak. 2929 trivial. 0 not checked. [2024-08-15 18:21:53,387 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-15 18:21:53,388 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1636516758] [2024-08-15 18:21:53,388 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1636516758] provided 1 perfect and 0 imperfect interpolant sequences [2024-08-15 18:21:53,388 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-08-15 18:21:53,388 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-08-15 18:21:53,388 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [727152515] [2024-08-15 18:21:53,388 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-08-15 18:21:53,389 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-08-15 18:21:53,389 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-15 18:21:53,389 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-08-15 18:21:53,389 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-08-15 18:21:53,390 INFO L87 Difference]: Start difference. First operand 1483 states and 2300 transitions. Second operand has 5 states, 5 states have (on average 36.0) internal successors, (180), 5 states have internal predecessors, (180), 3 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2024-08-15 18:21:53,428 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-08-15 18:21:53,428 INFO L93 Difference]: Finished difference Result 1483 states and 2293 transitions. [2024-08-15 18:21:53,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-15 18:21:53,429 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 36.0) internal successors, (180), 5 states have internal predecessors, (180), 3 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) Word has length 1015 [2024-08-15 18:21:53,429 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-08-15 18:21:53,433 INFO L225 Difference]: With dead ends: 1483 [2024-08-15 18:21:53,433 INFO L226 Difference]: Without dead ends: 1483 [2024-08-15 18:21:53,433 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-08-15 18:21:53,433 INFO L413 NwaCegarLoop]: 334 mSDtfsCounter, 295 mSDsluCounter, 345 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 296 SdHoareTripleChecker+Valid, 679 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-08-15 18:21:53,434 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [296 Valid, 679 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-08-15 18:21:53,435 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1483 states. [2024-08-15 18:21:53,449 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1483 to 1483. [2024-08-15 18:21:53,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1483 states, 1432 states have (on average 1.5656424581005586) internal successors, (2242), 1434 states have internal predecessors, (2242), 26 states have call successors, (26), 25 states have call predecessors, (26), 24 states have return successors, (25), 23 states have call predecessors, (25), 25 states have call successors, (25) [2024-08-15 18:21:53,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1483 states to 1483 states and 2293 transitions. [2024-08-15 18:21:53,453 INFO L78 Accepts]: Start accepts. Automaton has 1483 states and 2293 transitions. Word has length 1015 [2024-08-15 18:21:53,453 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-08-15 18:21:53,454 INFO L495 AbstractCegarLoop]: Abstraction has 1483 states and 2293 transitions. [2024-08-15 18:21:53,454 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 36.0) internal successors, (180), 5 states have internal predecessors, (180), 3 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2024-08-15 18:21:53,454 INFO L276 IsEmpty]: Start isEmpty. Operand 1483 states and 2293 transitions. [2024-08-15 18:21:53,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1016 [2024-08-15 18:21:53,459 INFO L187 NwaCegarLoop]: Found error trace [2024-08-15 18:21:53,460 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-08-15 18:21:53,460 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-08-15 18:21:53,460 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-08-15 18:21:53,460 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-15 18:21:53,461 INFO L85 PathProgramCache]: Analyzing trace with hash -1847722206, now seen corresponding path program 1 times [2024-08-15 18:21:53,461 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-15 18:21:53,461 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1897354644] [2024-08-15 18:21:53,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-15 18:21:53,461 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-15 18:21:55,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:21:56,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-08-15 18:21:56,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:21:56,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-08-15 18:21:56,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:21:56,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-08-15 18:21:56,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:21:56,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2024-08-15 18:21:56,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:21:56,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2024-08-15 18:21:56,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:21:56,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2024-08-15 18:21:56,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:21:56,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 274 [2024-08-15 18:21:56,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:21:56,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 319 [2024-08-15 18:21:56,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:21:56,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 334 [2024-08-15 18:21:56,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:21:56,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 421 [2024-08-15 18:21:56,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:21:56,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 466 [2024-08-15 18:21:56,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:21:56,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 481 [2024-08-15 18:21:56,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:21:56,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 568 [2024-08-15 18:21:56,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:21:56,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 613 [2024-08-15 18:21:56,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:21:56,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 628 [2024-08-15 18:21:56,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:21:56,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 715 [2024-08-15 18:21:56,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:21:56,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 760 [2024-08-15 18:21:56,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:21:56,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 775 [2024-08-15 18:21:56,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:21:56,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 862 [2024-08-15 18:21:56,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:21:56,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 907 [2024-08-15 18:21:56,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:21:56,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 922 [2024-08-15 18:21:56,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:21:56,377 INFO L134 CoverageAnalysis]: Checked inductivity of 3085 backedges. 651 proven. 0 refuted. 0 times theorem prover too weak. 2434 trivial. 0 not checked. [2024-08-15 18:21:56,377 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-15 18:21:56,377 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1897354644] [2024-08-15 18:21:56,377 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1897354644] provided 1 perfect and 0 imperfect interpolant sequences [2024-08-15 18:21:56,377 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-08-15 18:21:56,377 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-08-15 18:21:56,377 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [409361505] [2024-08-15 18:21:56,378 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-08-15 18:21:56,378 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-08-15 18:21:56,378 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-15 18:21:56,379 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-08-15 18:21:56,379 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-08-15 18:21:56,379 INFO L87 Difference]: Start difference. First operand 1483 states and 2293 transitions. Second operand has 5 states, 5 states have (on average 52.4) internal successors, (262), 5 states have internal predecessors, (262), 4 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (7), 4 states have call predecessors, (7), 4 states have call successors, (7) [2024-08-15 18:21:56,423 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-08-15 18:21:56,424 INFO L93 Difference]: Finished difference Result 1483 states and 2286 transitions. [2024-08-15 18:21:56,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-15 18:21:56,425 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 52.4) internal successors, (262), 5 states have internal predecessors, (262), 4 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (7), 4 states have call predecessors, (7), 4 states have call successors, (7) Word has length 1015 [2024-08-15 18:21:56,425 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-08-15 18:21:56,428 INFO L225 Difference]: With dead ends: 1483 [2024-08-15 18:21:56,428 INFO L226 Difference]: Without dead ends: 1483 [2024-08-15 18:21:56,429 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-08-15 18:21:56,429 INFO L413 NwaCegarLoop]: 334 mSDtfsCounter, 503 mSDsluCounter, 345 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 504 SdHoareTripleChecker+Valid, 679 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-08-15 18:21:56,429 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [504 Valid, 679 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-08-15 18:21:56,430 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1483 states. [2024-08-15 18:21:56,444 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1483 to 1483. [2024-08-15 18:21:56,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1483 states, 1432 states have (on average 1.5607541899441342) internal successors, (2235), 1434 states have internal predecessors, (2235), 26 states have call successors, (26), 25 states have call predecessors, (26), 24 states have return successors, (25), 23 states have call predecessors, (25), 25 states have call successors, (25) [2024-08-15 18:21:56,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1483 states to 1483 states and 2286 transitions. [2024-08-15 18:21:56,450 INFO L78 Accepts]: Start accepts. Automaton has 1483 states and 2286 transitions. Word has length 1015 [2024-08-15 18:21:56,450 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-08-15 18:21:56,450 INFO L495 AbstractCegarLoop]: Abstraction has 1483 states and 2286 transitions. [2024-08-15 18:21:56,450 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 52.4) internal successors, (262), 5 states have internal predecessors, (262), 4 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (7), 4 states have call predecessors, (7), 4 states have call successors, (7) [2024-08-15 18:21:56,451 INFO L276 IsEmpty]: Start isEmpty. Operand 1483 states and 2286 transitions. [2024-08-15 18:21:56,457 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1016 [2024-08-15 18:21:56,457 INFO L187 NwaCegarLoop]: Found error trace [2024-08-15 18:21:56,457 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-08-15 18:21:56,457 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-08-15 18:21:56,458 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-08-15 18:21:56,458 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-15 18:21:56,458 INFO L85 PathProgramCache]: Analyzing trace with hash -1176221694, now seen corresponding path program 1 times [2024-08-15 18:21:56,458 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-15 18:21:56,458 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [890932333] [2024-08-15 18:21:56,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-15 18:21:56,459 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-15 18:21:57,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:21:58,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-08-15 18:21:58,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:21:58,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-08-15 18:21:58,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:21:58,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-08-15 18:21:58,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:21:58,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2024-08-15 18:21:58,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:21:58,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2024-08-15 18:21:58,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:21:58,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2024-08-15 18:21:58,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:21:58,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 274 [2024-08-15 18:21:58,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:21:58,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 319 [2024-08-15 18:21:58,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:21:58,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 334 [2024-08-15 18:21:58,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:21:58,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 421 [2024-08-15 18:21:58,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:21:58,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 466 [2024-08-15 18:21:58,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:21:58,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 481 [2024-08-15 18:21:58,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:21:58,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 568 [2024-08-15 18:21:58,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:21:58,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 613 [2024-08-15 18:21:58,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:21:58,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 628 [2024-08-15 18:21:58,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:21:58,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 715 [2024-08-15 18:21:58,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:21:58,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 760 [2024-08-15 18:21:58,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:21:58,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 775 [2024-08-15 18:21:58,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:21:58,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 862 [2024-08-15 18:21:58,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:21:58,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 907 [2024-08-15 18:21:58,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:21:58,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 922 [2024-08-15 18:21:58,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:21:58,807 INFO L134 CoverageAnalysis]: Checked inductivity of 3085 backedges. 666 proven. 0 refuted. 0 times theorem prover too weak. 2419 trivial. 0 not checked. [2024-08-15 18:21:58,807 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-15 18:21:58,807 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [890932333] [2024-08-15 18:21:58,807 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [890932333] provided 1 perfect and 0 imperfect interpolant sequences [2024-08-15 18:21:58,808 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-08-15 18:21:58,808 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-08-15 18:21:58,808 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [830061994] [2024-08-15 18:21:58,808 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-08-15 18:21:58,809 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-08-15 18:21:58,809 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-15 18:21:58,810 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-08-15 18:21:58,810 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-08-15 18:21:58,810 INFO L87 Difference]: Start difference. First operand 1483 states and 2286 transitions. Second operand has 5 states, 5 states have (on average 53.0) internal successors, (265), 5 states have internal predecessors, (265), 4 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (7), 4 states have call predecessors, (7), 4 states have call successors, (7) [2024-08-15 18:21:58,861 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-08-15 18:21:58,861 INFO L93 Difference]: Finished difference Result 1483 states and 2279 transitions. [2024-08-15 18:21:58,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-15 18:21:58,862 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 53.0) internal successors, (265), 5 states have internal predecessors, (265), 4 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (7), 4 states have call predecessors, (7), 4 states have call successors, (7) Word has length 1015 [2024-08-15 18:21:58,862 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-08-15 18:21:58,867 INFO L225 Difference]: With dead ends: 1483 [2024-08-15 18:21:58,867 INFO L226 Difference]: Without dead ends: 1483 [2024-08-15 18:21:58,867 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-08-15 18:21:58,868 INFO L413 NwaCegarLoop]: 334 mSDtfsCounter, 498 mSDsluCounter, 345 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 499 SdHoareTripleChecker+Valid, 679 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-08-15 18:21:58,868 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [499 Valid, 679 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-08-15 18:21:58,869 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1483 states. [2024-08-15 18:21:58,887 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1483 to 1483. [2024-08-15 18:21:58,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1483 states, 1432 states have (on average 1.5558659217877095) internal successors, (2228), 1434 states have internal predecessors, (2228), 26 states have call successors, (26), 25 states have call predecessors, (26), 24 states have return successors, (25), 23 states have call predecessors, (25), 25 states have call successors, (25) [2024-08-15 18:21:58,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1483 states to 1483 states and 2279 transitions. [2024-08-15 18:21:58,894 INFO L78 Accepts]: Start accepts. Automaton has 1483 states and 2279 transitions. Word has length 1015 [2024-08-15 18:21:58,895 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-08-15 18:21:58,895 INFO L495 AbstractCegarLoop]: Abstraction has 1483 states and 2279 transitions. [2024-08-15 18:21:58,895 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 53.0) internal successors, (265), 5 states have internal predecessors, (265), 4 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (7), 4 states have call predecessors, (7), 4 states have call successors, (7) [2024-08-15 18:21:58,896 INFO L276 IsEmpty]: Start isEmpty. Operand 1483 states and 2279 transitions. [2024-08-15 18:21:58,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1016 [2024-08-15 18:21:58,903 INFO L187 NwaCegarLoop]: Found error trace [2024-08-15 18:21:58,904 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-08-15 18:21:58,904 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-08-15 18:21:58,904 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-08-15 18:21:58,905 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-15 18:21:58,905 INFO L85 PathProgramCache]: Analyzing trace with hash 2051910434, now seen corresponding path program 1 times [2024-08-15 18:21:58,905 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-15 18:21:58,905 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2094079062] [2024-08-15 18:21:58,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-15 18:21:58,906 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-15 18:22:05,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:22:09,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-08-15 18:22:09,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:22:09,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-08-15 18:22:09,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:22:09,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-08-15 18:22:09,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:22:09,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2024-08-15 18:22:09,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:22:09,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2024-08-15 18:22:09,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:22:09,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2024-08-15 18:22:09,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:22:09,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 274 [2024-08-15 18:22:09,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:22:09,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 319 [2024-08-15 18:22:09,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:22:09,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 334 [2024-08-15 18:22:09,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:22:09,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 421 [2024-08-15 18:22:09,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:22:09,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 466 [2024-08-15 18:22:09,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:22:09,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 481 [2024-08-15 18:22:09,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:22:09,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 568 [2024-08-15 18:22:09,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:22:09,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 613 [2024-08-15 18:22:09,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:22:09,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 628 [2024-08-15 18:22:09,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:22:09,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 715 [2024-08-15 18:22:09,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:22:09,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 760 [2024-08-15 18:22:09,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:22:09,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 775 [2024-08-15 18:22:09,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:22:09,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 862 [2024-08-15 18:22:09,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:22:09,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 907 [2024-08-15 18:22:09,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:22:09,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 922 [2024-08-15 18:22:09,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:22:09,163 INFO L134 CoverageAnalysis]: Checked inductivity of 3085 backedges. 498 proven. 6 refuted. 0 times theorem prover too weak. 2581 trivial. 0 not checked. [2024-08-15 18:22:09,163 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-15 18:22:09,163 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2094079062] [2024-08-15 18:22:09,164 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2094079062] provided 0 perfect and 1 imperfect interpolant sequences [2024-08-15 18:22:09,164 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [117929717] [2024-08-15 18:22:09,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-15 18:22:09,164 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-15 18:22:09,164 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-08-15 18:22:09,166 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-08-15 18:22:09,170 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-08-15 18:22:12,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:22:12,736 INFO L262 TraceCheckSpWp]: Trace formula consists of 5303 conjuncts, 11 conjunts are in the unsatisfiable core [2024-08-15 18:22:12,749 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-08-15 18:22:12,799 INFO L134 CoverageAnalysis]: Checked inductivity of 3085 backedges. 1789 proven. 0 refuted. 0 times theorem prover too weak. 1296 trivial. 0 not checked. [2024-08-15 18:22:12,799 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-08-15 18:22:12,799 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [117929717] provided 1 perfect and 0 imperfect interpolant sequences [2024-08-15 18:22:12,800 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-08-15 18:22:12,800 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [8] total 12 [2024-08-15 18:22:12,800 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1011674854] [2024-08-15 18:22:12,800 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-08-15 18:22:12,801 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-08-15 18:22:12,801 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-15 18:22:12,802 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-08-15 18:22:12,802 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2024-08-15 18:22:12,802 INFO L87 Difference]: Start difference. First operand 1483 states and 2279 transitions. Second operand has 6 states, 5 states have (on average 60.0) internal successors, (300), 6 states have internal predecessors, (300), 3 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 3 states have call successors, (8) [2024-08-15 18:22:12,838 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-08-15 18:22:12,838 INFO L93 Difference]: Finished difference Result 1499 states and 2295 transitions. [2024-08-15 18:22:12,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-08-15 18:22:12,839 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 60.0) internal successors, (300), 6 states have internal predecessors, (300), 3 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 3 states have call successors, (8) Word has length 1015 [2024-08-15 18:22:12,839 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-08-15 18:22:12,843 INFO L225 Difference]: With dead ends: 1499 [2024-08-15 18:22:12,843 INFO L226 Difference]: Without dead ends: 1483 [2024-08-15 18:22:12,843 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1064 GetRequests, 1054 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2024-08-15 18:22:12,844 INFO L413 NwaCegarLoop]: 337 mSDtfsCounter, 0 mSDsluCounter, 1337 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1674 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-08-15 18:22:12,844 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1674 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-08-15 18:22:12,845 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1483 states. [2024-08-15 18:22:12,861 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1483 to 1483. [2024-08-15 18:22:12,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1483 states, 1432 states have (on average 1.5502793296089385) internal successors, (2220), 1434 states have internal predecessors, (2220), 26 states have call successors, (26), 25 states have call predecessors, (26), 24 states have return successors, (25), 23 states have call predecessors, (25), 25 states have call successors, (25) [2024-08-15 18:22:12,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1483 states to 1483 states and 2271 transitions. [2024-08-15 18:22:12,873 INFO L78 Accepts]: Start accepts. Automaton has 1483 states and 2271 transitions. Word has length 1015 [2024-08-15 18:22:12,874 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-08-15 18:22:12,874 INFO L495 AbstractCegarLoop]: Abstraction has 1483 states and 2271 transitions. [2024-08-15 18:22:12,874 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 60.0) internal successors, (300), 6 states have internal predecessors, (300), 3 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 3 states have call successors, (8) [2024-08-15 18:22:12,874 INFO L276 IsEmpty]: Start isEmpty. Operand 1483 states and 2271 transitions. [2024-08-15 18:22:12,884 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1023 [2024-08-15 18:22:12,884 INFO L187 NwaCegarLoop]: Found error trace [2024-08-15 18:22:12,884 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-08-15 18:22:12,920 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-08-15 18:22:13,085 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2024-08-15 18:22:13,085 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-08-15 18:22:13,086 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-15 18:22:13,086 INFO L85 PathProgramCache]: Analyzing trace with hash 981921532, now seen corresponding path program 1 times [2024-08-15 18:22:13,086 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-15 18:22:13,086 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1536126806] [2024-08-15 18:22:13,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-15 18:22:13,086 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-15 18:22:17,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:22:21,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-08-15 18:22:21,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:22:21,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-08-15 18:22:21,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:22:21,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-08-15 18:22:21,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:22:21,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-08-15 18:22:21,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:22:21,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2024-08-15 18:22:21,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:22:21,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2024-08-15 18:22:21,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:22:21,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 276 [2024-08-15 18:22:21,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:22:21,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 322 [2024-08-15 18:22:21,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:22:21,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 337 [2024-08-15 18:22:21,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:22:21,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 424 [2024-08-15 18:22:21,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:22:21,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 470 [2024-08-15 18:22:21,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:22:21,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 485 [2024-08-15 18:22:21,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:22:21,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 572 [2024-08-15 18:22:21,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:22:21,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 618 [2024-08-15 18:22:21,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:22:21,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 633 [2024-08-15 18:22:21,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:22:21,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 720 [2024-08-15 18:22:21,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:22:21,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 766 [2024-08-15 18:22:21,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:22:21,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 781 [2024-08-15 18:22:21,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:22:21,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 868 [2024-08-15 18:22:21,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:22:21,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 914 [2024-08-15 18:22:21,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:22:21,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 929 [2024-08-15 18:22:21,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:22:21,320 INFO L134 CoverageAnalysis]: Checked inductivity of 3106 backedges. 474 proven. 6 refuted. 0 times theorem prover too weak. 2626 trivial. 0 not checked. [2024-08-15 18:22:21,321 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-15 18:22:21,321 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1536126806] [2024-08-15 18:22:21,321 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1536126806] provided 0 perfect and 1 imperfect interpolant sequences [2024-08-15 18:22:21,321 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1526252833] [2024-08-15 18:22:21,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-15 18:22:21,321 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-15 18:22:21,322 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-08-15 18:22:21,323 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-08-15 18:22:21,330 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-08-15 18:22:24,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:22:24,437 INFO L262 TraceCheckSpWp]: Trace formula consists of 5324 conjuncts, 86 conjunts are in the unsatisfiable core [2024-08-15 18:22:24,461 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-08-15 18:22:24,993 INFO L134 CoverageAnalysis]: Checked inductivity of 3106 backedges. 678 proven. 0 refuted. 0 times theorem prover too weak. 2428 trivial. 0 not checked. [2024-08-15 18:22:24,994 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-08-15 18:22:24,994 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1526252833] provided 1 perfect and 0 imperfect interpolant sequences [2024-08-15 18:22:24,994 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-08-15 18:22:24,994 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [8] total 13 [2024-08-15 18:22:24,994 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1812072265] [2024-08-15 18:22:24,994 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-08-15 18:22:24,995 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-08-15 18:22:24,995 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-15 18:22:24,995 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-08-15 18:22:24,995 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=105, Unknown=0, NotChecked=0, Total=156 [2024-08-15 18:22:24,996 INFO L87 Difference]: Start difference. First operand 1483 states and 2271 transitions. Second operand has 7 states, 7 states have (on average 36.57142857142857) internal successors, (256), 7 states have internal predecessors, (256), 3 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2024-08-15 18:22:25,164 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-08-15 18:22:25,164 INFO L93 Difference]: Finished difference Result 2141 states and 3349 transitions. [2024-08-15 18:22:25,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-08-15 18:22:25,165 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 36.57142857142857) internal successors, (256), 7 states have internal predecessors, (256), 3 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) Word has length 1022 [2024-08-15 18:22:25,165 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-08-15 18:22:25,170 INFO L225 Difference]: With dead ends: 2141 [2024-08-15 18:22:25,171 INFO L226 Difference]: Without dead ends: 2141 [2024-08-15 18:22:25,172 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1071 GetRequests, 1060 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=51, Invalid=105, Unknown=0, NotChecked=0, Total=156 [2024-08-15 18:22:25,172 INFO L413 NwaCegarLoop]: 286 mSDtfsCounter, 461 mSDsluCounter, 949 mSDsCounter, 0 mSdLazyCounter, 241 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 462 SdHoareTripleChecker+Valid, 1235 SdHoareTripleChecker+Invalid, 243 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 241 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-08-15 18:22:25,173 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [462 Valid, 1235 Invalid, 243 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 241 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-08-15 18:22:25,174 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2141 states. [2024-08-15 18:22:25,195 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2141 to 2134. [2024-08-15 18:22:25,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2134 states, 2083 states have (on average 1.5799327892462793) internal successors, (3291), 2085 states have internal predecessors, (3291), 26 states have call successors, (26), 25 states have call predecessors, (26), 24 states have return successors, (25), 23 states have call predecessors, (25), 25 states have call successors, (25) [2024-08-15 18:22:25,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2134 states to 2134 states and 3342 transitions. [2024-08-15 18:22:25,201 INFO L78 Accepts]: Start accepts. Automaton has 2134 states and 3342 transitions. Word has length 1022 [2024-08-15 18:22:25,201 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-08-15 18:22:25,202 INFO L495 AbstractCegarLoop]: Abstraction has 2134 states and 3342 transitions. [2024-08-15 18:22:25,202 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 36.57142857142857) internal successors, (256), 7 states have internal predecessors, (256), 3 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2024-08-15 18:22:25,202 INFO L276 IsEmpty]: Start isEmpty. Operand 2134 states and 3342 transitions. [2024-08-15 18:22:25,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1030 [2024-08-15 18:22:25,209 INFO L187 NwaCegarLoop]: Found error trace [2024-08-15 18:22:25,209 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-08-15 18:22:25,247 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-08-15 18:22:25,409 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-15 18:22:25,410 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-08-15 18:22:25,411 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-15 18:22:25,411 INFO L85 PathProgramCache]: Analyzing trace with hash 1676344571, now seen corresponding path program 1 times [2024-08-15 18:22:25,411 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-15 18:22:25,411 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [292789663] [2024-08-15 18:22:25,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-15 18:22:25,411 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-15 18:22:32,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:22:36,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-08-15 18:22:36,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:22:36,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-08-15 18:22:36,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:22:36,733 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-08-15 18:22:36,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:22:36,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2024-08-15 18:22:36,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:22:36,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2024-08-15 18:22:36,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:22:36,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2024-08-15 18:22:36,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:22:36,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 278 [2024-08-15 18:22:36,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:22:36,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 324 [2024-08-15 18:22:36,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:22:36,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 339 [2024-08-15 18:22:36,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:22:36,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 427 [2024-08-15 18:22:36,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:22:36,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 473 [2024-08-15 18:22:36,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:22:36,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 488 [2024-08-15 18:22:36,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:22:36,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 576 [2024-08-15 18:22:36,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:22:36,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 622 [2024-08-15 18:22:36,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:22:36,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 637 [2024-08-15 18:22:36,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:22:36,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 725 [2024-08-15 18:22:36,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:22:36,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 771 [2024-08-15 18:22:36,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:22:36,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 786 [2024-08-15 18:22:36,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:22:36,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 874 [2024-08-15 18:22:36,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:22:36,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 920 [2024-08-15 18:22:36,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:22:36,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 935 [2024-08-15 18:22:36,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:22:36,757 INFO L134 CoverageAnalysis]: Checked inductivity of 3127 backedges. 1214 proven. 1 refuted. 0 times theorem prover too weak. 1912 trivial. 0 not checked. [2024-08-15 18:22:36,758 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-15 18:22:36,758 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [292789663] [2024-08-15 18:22:36,758 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [292789663] provided 0 perfect and 1 imperfect interpolant sequences [2024-08-15 18:22:36,758 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2114729360] [2024-08-15 18:22:36,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-15 18:22:36,758 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-15 18:22:36,758 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-08-15 18:22:36,761 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-08-15 18:22:36,762 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-08-15 18:22:41,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:22:41,373 INFO L262 TraceCheckSpWp]: Trace formula consists of 5345 conjuncts, 328 conjunts are in the unsatisfiable core [2024-08-15 18:22:41,398 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-08-15 18:22:45,591 INFO L134 CoverageAnalysis]: Checked inductivity of 3127 backedges. 1966 proven. 176 refuted. 0 times theorem prover too weak. 985 trivial. 0 not checked. [2024-08-15 18:22:45,592 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-08-15 18:22:50,481 INFO L134 CoverageAnalysis]: Checked inductivity of 3127 backedges. 1700 proven. 16 refuted. 0 times theorem prover too weak. 1411 trivial. 0 not checked. [2024-08-15 18:22:50,481 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2114729360] provided 0 perfect and 2 imperfect interpolant sequences [2024-08-15 18:22:50,482 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-08-15 18:22:50,482 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 31, 23] total 57 [2024-08-15 18:22:50,482 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1694693393] [2024-08-15 18:22:50,482 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-08-15 18:22:50,484 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 57 states [2024-08-15 18:22:50,484 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-15 18:22:50,485 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 57 interpolants. [2024-08-15 18:22:50,486 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=468, Invalid=2724, Unknown=0, NotChecked=0, Total=3192 [2024-08-15 18:22:50,487 INFO L87 Difference]: Start difference. First operand 2134 states and 3342 transitions. Second operand has 57 states, 56 states have (on average 18.375) internal successors, (1029), 56 states have internal predecessors, (1029), 10 states have call successors, (27), 3 states have call predecessors, (27), 2 states have return successors, (25), 9 states have call predecessors, (25), 9 states have call successors, (25) [2024-08-15 18:22:58,208 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-08-15 18:22:58,208 INFO L93 Difference]: Finished difference Result 10462 states and 15964 transitions. [2024-08-15 18:22:58,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 146 states. [2024-08-15 18:22:58,209 INFO L78 Accepts]: Start accepts. Automaton has has 57 states, 56 states have (on average 18.375) internal successors, (1029), 56 states have internal predecessors, (1029), 10 states have call successors, (27), 3 states have call predecessors, (27), 2 states have return successors, (25), 9 states have call predecessors, (25), 9 states have call successors, (25) Word has length 1029 [2024-08-15 18:22:58,209 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-08-15 18:22:58,248 INFO L225 Difference]: With dead ends: 10462 [2024-08-15 18:22:58,248 INFO L226 Difference]: Without dead ends: 10462 [2024-08-15 18:22:58,255 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2288 GetRequests, 2114 SyntacticMatches, 0 SemanticMatches, 174 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9775 ImplicationChecksByTransitivity, 5.0s TimeCoverageRelationStatistics Valid=2739, Invalid=28061, Unknown=0, NotChecked=0, Total=30800 [2024-08-15 18:22:58,256 INFO L413 NwaCegarLoop]: 502 mSDtfsCounter, 3804 mSDsluCounter, 16228 mSDsCounter, 0 mSdLazyCounter, 6653 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3805 SdHoareTripleChecker+Valid, 16730 SdHoareTripleChecker+Invalid, 6706 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 6653 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2024-08-15 18:22:58,256 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3805 Valid, 16730 Invalid, 6706 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 6653 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2024-08-15 18:22:58,264 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10462 states. [2024-08-15 18:22:58,363 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10462 to 4165. [2024-08-15 18:22:58,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4165 states, 4086 states have (on average 1.573910915320607) internal successors, (6431), 4089 states have internal predecessors, (6431), 54 states have call successors, (54), 25 states have call predecessors, (54), 24 states have return successors, (53), 50 states have call predecessors, (53), 53 states have call successors, (53) [2024-08-15 18:22:58,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4165 states to 4165 states and 6538 transitions. [2024-08-15 18:22:58,377 INFO L78 Accepts]: Start accepts. Automaton has 4165 states and 6538 transitions. Word has length 1029 [2024-08-15 18:22:58,377 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-08-15 18:22:58,378 INFO L495 AbstractCegarLoop]: Abstraction has 4165 states and 6538 transitions. [2024-08-15 18:22:58,378 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 57 states, 56 states have (on average 18.375) internal successors, (1029), 56 states have internal predecessors, (1029), 10 states have call successors, (27), 3 states have call predecessors, (27), 2 states have return successors, (25), 9 states have call predecessors, (25), 9 states have call successors, (25) [2024-08-15 18:22:58,378 INFO L276 IsEmpty]: Start isEmpty. Operand 4165 states and 6538 transitions. [2024-08-15 18:22:58,387 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1041 [2024-08-15 18:22:58,387 INFO L187 NwaCegarLoop]: Found error trace [2024-08-15 18:22:58,388 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-08-15 18:22:58,430 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-08-15 18:22:58,588 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2024-08-15 18:22:58,589 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-08-15 18:22:58,589 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-15 18:22:58,589 INFO L85 PathProgramCache]: Analyzing trace with hash -573264572, now seen corresponding path program 1 times [2024-08-15 18:22:58,590 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-15 18:22:58,590 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [318571309] [2024-08-15 18:22:58,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-15 18:22:58,590 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-15 18:22:59,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:23:00,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-08-15 18:23:00,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:23:00,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-08-15 18:23:00,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:23:00,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-08-15 18:23:00,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:23:00,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2024-08-15 18:23:00,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:23:00,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2024-08-15 18:23:00,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:23:00,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2024-08-15 18:23:00,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:23:00,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 280 [2024-08-15 18:23:00,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:23:00,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 326 [2024-08-15 18:23:00,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:23:00,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 342 [2024-08-15 18:23:00,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:23:00,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 431 [2024-08-15 18:23:00,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:23:00,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 477 [2024-08-15 18:23:00,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:23:00,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 493 [2024-08-15 18:23:00,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:23:00,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 582 [2024-08-15 18:23:00,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:23:00,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 628 [2024-08-15 18:23:00,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:23:00,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 644 [2024-08-15 18:23:00,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:23:00,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 733 [2024-08-15 18:23:00,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:23:00,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 779 [2024-08-15 18:23:00,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:23:00,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 795 [2024-08-15 18:23:00,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:23:00,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 884 [2024-08-15 18:23:00,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:23:00,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 930 [2024-08-15 18:23:00,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:23:00,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 946 [2024-08-15 18:23:00,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:23:00,683 INFO L134 CoverageAnalysis]: Checked inductivity of 3151 backedges. 222 proven. 0 refuted. 0 times theorem prover too weak. 2929 trivial. 0 not checked. [2024-08-15 18:23:00,683 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-15 18:23:00,684 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [318571309] [2024-08-15 18:23:00,684 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [318571309] provided 1 perfect and 0 imperfect interpolant sequences [2024-08-15 18:23:00,684 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-08-15 18:23:00,684 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-08-15 18:23:00,684 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1977669867] [2024-08-15 18:23:00,684 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-08-15 18:23:00,685 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-08-15 18:23:00,685 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-15 18:23:00,686 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-08-15 18:23:00,686 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-08-15 18:23:00,686 INFO L87 Difference]: Start difference. First operand 4165 states and 6538 transitions. Second operand has 7 states, 7 states have (on average 28.0) internal successors, (196), 7 states have internal predecessors, (196), 3 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2024-08-15 18:23:00,756 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-08-15 18:23:00,756 INFO L93 Difference]: Finished difference Result 4191 states and 6551 transitions. [2024-08-15 18:23:00,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-08-15 18:23:00,757 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 28.0) internal successors, (196), 7 states have internal predecessors, (196), 3 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) Word has length 1040 [2024-08-15 18:23:00,757 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-08-15 18:23:00,766 INFO L225 Difference]: With dead ends: 4191 [2024-08-15 18:23:00,766 INFO L226 Difference]: Without dead ends: 4191 [2024-08-15 18:23:00,766 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2024-08-15 18:23:00,767 INFO L413 NwaCegarLoop]: 332 mSDtfsCounter, 282 mSDsluCounter, 1330 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 283 SdHoareTripleChecker+Valid, 1662 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-08-15 18:23:00,767 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [283 Valid, 1662 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-08-15 18:23:00,770 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4191 states. [2024-08-15 18:23:00,822 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4191 to 4191. [2024-08-15 18:23:00,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4191 states, 4112 states have (on average 1.5671206225680934) internal successors, (6444), 4115 states have internal predecessors, (6444), 54 states have call successors, (54), 25 states have call predecessors, (54), 24 states have return successors, (53), 50 states have call predecessors, (53), 53 states have call successors, (53) [2024-08-15 18:23:00,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4191 states to 4191 states and 6551 transitions. [2024-08-15 18:23:00,838 INFO L78 Accepts]: Start accepts. Automaton has 4191 states and 6551 transitions. Word has length 1040 [2024-08-15 18:23:00,839 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-08-15 18:23:00,839 INFO L495 AbstractCegarLoop]: Abstraction has 4191 states and 6551 transitions. [2024-08-15 18:23:00,839 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 28.0) internal successors, (196), 7 states have internal predecessors, (196), 3 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2024-08-15 18:23:00,839 INFO L276 IsEmpty]: Start isEmpty. Operand 4191 states and 6551 transitions. [2024-08-15 18:23:00,915 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1042 [2024-08-15 18:23:00,915 INFO L187 NwaCegarLoop]: Found error trace [2024-08-15 18:23:00,916 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-08-15 18:23:00,916 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-08-15 18:23:00,916 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-08-15 18:23:00,917 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-15 18:23:00,917 INFO L85 PathProgramCache]: Analyzing trace with hash 23807034, now seen corresponding path program 1 times [2024-08-15 18:23:00,918 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-15 18:23:00,918 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [490937199] [2024-08-15 18:23:00,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-15 18:23:00,918 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-15 18:23:01,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:23:03,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-08-15 18:23:03,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:23:03,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-08-15 18:23:03,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:23:03,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-08-15 18:23:03,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:23:03,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2024-08-15 18:23:03,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:23:03,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2024-08-15 18:23:03,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:23:03,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2024-08-15 18:23:03,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:23:03,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 281 [2024-08-15 18:23:03,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:23:03,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 327 [2024-08-15 18:23:03,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:23:03,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 343 [2024-08-15 18:23:03,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:23:03,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 432 [2024-08-15 18:23:03,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:23:03,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 478 [2024-08-15 18:23:03,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:23:03,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 494 [2024-08-15 18:23:03,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:23:03,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 583 [2024-08-15 18:23:03,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:23:03,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 629 [2024-08-15 18:23:03,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:23:03,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 645 [2024-08-15 18:23:03,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:23:03,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 734 [2024-08-15 18:23:03,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:23:03,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 780 [2024-08-15 18:23:03,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:23:03,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 796 [2024-08-15 18:23:03,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:23:03,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 885 [2024-08-15 18:23:03,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:23:03,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 931 [2024-08-15 18:23:03,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:23:03,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 947 [2024-08-15 18:23:03,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:23:03,143 INFO L134 CoverageAnalysis]: Checked inductivity of 3163 backedges. 642 proven. 0 refuted. 0 times theorem prover too weak. 2521 trivial. 0 not checked. [2024-08-15 18:23:03,143 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-15 18:23:03,143 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [490937199] [2024-08-15 18:23:03,147 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [490937199] provided 1 perfect and 0 imperfect interpolant sequences [2024-08-15 18:23:03,147 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-08-15 18:23:03,147 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-08-15 18:23:03,147 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1683815920] [2024-08-15 18:23:03,147 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-08-15 18:23:03,148 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-08-15 18:23:03,148 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-15 18:23:03,148 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-08-15 18:23:03,148 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-08-15 18:23:03,149 INFO L87 Difference]: Start difference. First operand 4191 states and 6551 transitions. Second operand has 6 states, 6 states have (on average 43.833333333333336) internal successors, (263), 6 states have internal predecessors, (263), 3 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2024-08-15 18:23:03,290 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-08-15 18:23:03,290 INFO L93 Difference]: Finished difference Result 4212 states and 6573 transitions. [2024-08-15 18:23:03,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-08-15 18:23:03,293 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 43.833333333333336) internal successors, (263), 6 states have internal predecessors, (263), 3 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) Word has length 1041 [2024-08-15 18:23:03,293 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-08-15 18:23:03,299 INFO L225 Difference]: With dead ends: 4212 [2024-08-15 18:23:03,299 INFO L226 Difference]: Without dead ends: 4212 [2024-08-15 18:23:03,300 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-08-15 18:23:03,300 INFO L413 NwaCegarLoop]: 291 mSDtfsCounter, 228 mSDsluCounter, 855 mSDsCounter, 0 mSdLazyCounter, 204 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 229 SdHoareTripleChecker+Valid, 1146 SdHoareTripleChecker+Invalid, 205 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 204 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-08-15 18:23:03,300 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [229 Valid, 1146 Invalid, 205 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 204 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-08-15 18:23:03,302 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4212 states. [2024-08-15 18:23:03,345 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4212 to 4205. [2024-08-15 18:23:03,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4205 states, 4126 states have (on average 1.5637421231216675) internal successors, (6452), 4129 states have internal predecessors, (6452), 54 states have call successors, (54), 25 states have call predecessors, (54), 24 states have return successors, (53), 50 states have call predecessors, (53), 53 states have call successors, (53) [2024-08-15 18:23:03,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4205 states to 4205 states and 6559 transitions. [2024-08-15 18:23:03,354 INFO L78 Accepts]: Start accepts. Automaton has 4205 states and 6559 transitions. Word has length 1041 [2024-08-15 18:23:03,355 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-08-15 18:23:03,355 INFO L495 AbstractCegarLoop]: Abstraction has 4205 states and 6559 transitions. [2024-08-15 18:23:03,356 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 43.833333333333336) internal successors, (263), 6 states have internal predecessors, (263), 3 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2024-08-15 18:23:03,356 INFO L276 IsEmpty]: Start isEmpty. Operand 4205 states and 6559 transitions. [2024-08-15 18:23:03,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1042 [2024-08-15 18:23:03,366 INFO L187 NwaCegarLoop]: Found error trace [2024-08-15 18:23:03,367 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-08-15 18:23:03,367 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-08-15 18:23:03,367 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-08-15 18:23:03,367 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-15 18:23:03,368 INFO L85 PathProgramCache]: Analyzing trace with hash -1529484390, now seen corresponding path program 1 times [2024-08-15 18:23:03,368 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-15 18:23:03,368 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1434091095] [2024-08-15 18:23:03,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-15 18:23:03,368 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-15 18:23:03,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:23:04,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-08-15 18:23:05,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:23:05,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-08-15 18:23:05,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:23:05,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-08-15 18:23:05,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:23:05,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2024-08-15 18:23:05,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:23:05,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2024-08-15 18:23:05,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:23:05,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2024-08-15 18:23:05,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:23:05,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 281 [2024-08-15 18:23:05,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:23:05,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 327 [2024-08-15 18:23:05,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:23:05,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 343 [2024-08-15 18:23:05,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:23:05,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 432 [2024-08-15 18:23:05,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:23:05,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 478 [2024-08-15 18:23:05,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:23:05,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 494 [2024-08-15 18:23:05,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:23:05,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 583 [2024-08-15 18:23:05,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:23:05,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 629 [2024-08-15 18:23:05,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:23:05,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 645 [2024-08-15 18:23:05,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:23:05,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 734 [2024-08-15 18:23:05,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:23:05,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 780 [2024-08-15 18:23:05,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:23:05,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 796 [2024-08-15 18:23:05,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:23:05,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 885 [2024-08-15 18:23:05,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:23:05,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 931 [2024-08-15 18:23:05,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:23:05,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 947 [2024-08-15 18:23:05,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:23:05,017 INFO L134 CoverageAnalysis]: Checked inductivity of 3163 backedges. 885 proven. 0 refuted. 0 times theorem prover too weak. 2278 trivial. 0 not checked. [2024-08-15 18:23:05,017 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-15 18:23:05,017 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1434091095] [2024-08-15 18:23:05,017 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1434091095] provided 1 perfect and 0 imperfect interpolant sequences [2024-08-15 18:23:05,017 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-08-15 18:23:05,018 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-08-15 18:23:05,018 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1544913491] [2024-08-15 18:23:05,018 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-08-15 18:23:05,019 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-08-15 18:23:05,019 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-15 18:23:05,019 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-08-15 18:23:05,020 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-08-15 18:23:05,020 INFO L87 Difference]: Start difference. First operand 4205 states and 6559 transitions. Second operand has 5 states, 5 states have (on average 61.6) internal successors, (308), 5 states have internal predecessors, (308), 3 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-08-15 18:23:05,078 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-08-15 18:23:05,079 INFO L93 Difference]: Finished difference Result 8007 states and 12497 transitions. [2024-08-15 18:23:05,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-08-15 18:23:05,079 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 61.6) internal successors, (308), 5 states have internal predecessors, (308), 3 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 1041 [2024-08-15 18:23:05,080 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-08-15 18:23:05,094 INFO L225 Difference]: With dead ends: 8007 [2024-08-15 18:23:05,094 INFO L226 Difference]: Without dead ends: 8007 [2024-08-15 18:23:05,094 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-08-15 18:23:05,095 INFO L413 NwaCegarLoop]: 331 mSDtfsCounter, 263 mSDsluCounter, 980 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 265 SdHoareTripleChecker+Valid, 1311 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-08-15 18:23:05,095 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [265 Valid, 1311 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-08-15 18:23:05,100 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8007 states. [2024-08-15 18:23:05,155 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8007 to 4582. [2024-08-15 18:23:05,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4582 states, 4474 states have (on average 1.5393383996423782) internal successors, (6887), 4477 states have internal predecessors, (6887), 83 states have call successors, (83), 25 states have call predecessors, (83), 24 states have return successors, (82), 79 states have call predecessors, (82), 82 states have call successors, (82) [2024-08-15 18:23:05,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4582 states to 4582 states and 7052 transitions. [2024-08-15 18:23:05,166 INFO L78 Accepts]: Start accepts. Automaton has 4582 states and 7052 transitions. Word has length 1041 [2024-08-15 18:23:05,167 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-08-15 18:23:05,167 INFO L495 AbstractCegarLoop]: Abstraction has 4582 states and 7052 transitions. [2024-08-15 18:23:05,167 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 61.6) internal successors, (308), 5 states have internal predecessors, (308), 3 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-08-15 18:23:05,167 INFO L276 IsEmpty]: Start isEmpty. Operand 4582 states and 7052 transitions. [2024-08-15 18:23:05,176 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1042 [2024-08-15 18:23:05,177 INFO L187 NwaCegarLoop]: Found error trace [2024-08-15 18:23:05,177 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-08-15 18:23:05,177 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-08-15 18:23:05,177 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-08-15 18:23:05,178 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-15 18:23:05,178 INFO L85 PathProgramCache]: Analyzing trace with hash 2090106362, now seen corresponding path program 1 times [2024-08-15 18:23:05,178 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-15 18:23:05,178 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1042771147] [2024-08-15 18:23:05,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-15 18:23:05,179 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-15 18:23:13,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:23:15,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-08-15 18:23:15,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:23:15,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-08-15 18:23:15,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:23:15,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-08-15 18:23:15,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:23:15,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2024-08-15 18:23:15,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:23:15,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2024-08-15 18:23:15,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:23:15,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2024-08-15 18:23:15,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:23:15,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 281 [2024-08-15 18:23:15,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:23:15,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 327 [2024-08-15 18:23:15,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:23:15,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 343 [2024-08-15 18:23:15,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:23:15,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 432 [2024-08-15 18:23:15,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:23:15,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 478 [2024-08-15 18:23:15,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:23:15,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 494 [2024-08-15 18:23:15,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:23:15,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 583 [2024-08-15 18:23:15,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:23:15,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 629 [2024-08-15 18:23:15,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:23:15,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 645 [2024-08-15 18:23:15,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:23:15,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 734 [2024-08-15 18:23:15,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:23:15,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 780 [2024-08-15 18:23:15,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:23:15,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 796 [2024-08-15 18:23:15,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:23:15,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 885 [2024-08-15 18:23:15,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:23:15,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 931 [2024-08-15 18:23:15,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:23:15,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 947 [2024-08-15 18:23:15,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:23:15,236 INFO L134 CoverageAnalysis]: Checked inductivity of 3163 backedges. 132 proven. 0 refuted. 0 times theorem prover too weak. 3031 trivial. 0 not checked. [2024-08-15 18:23:15,237 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-15 18:23:15,237 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1042771147] [2024-08-15 18:23:15,239 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1042771147] provided 1 perfect and 0 imperfect interpolant sequences [2024-08-15 18:23:15,240 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-08-15 18:23:15,240 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-08-15 18:23:15,240 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1098030135] [2024-08-15 18:23:15,240 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-08-15 18:23:15,241 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-08-15 18:23:15,241 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-15 18:23:15,241 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-08-15 18:23:15,241 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-08-15 18:23:15,242 INFO L87 Difference]: Start difference. First operand 4582 states and 7052 transitions. Second operand has 8 states, 8 states have (on average 22.5) internal successors, (180), 8 states have internal predecessors, (180), 3 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2024-08-15 18:23:15,482 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-08-15 18:23:15,482 INFO L93 Difference]: Finished difference Result 4672 states and 7172 transitions. [2024-08-15 18:23:15,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-08-15 18:23:15,483 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 22.5) internal successors, (180), 8 states have internal predecessors, (180), 3 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) Word has length 1041 [2024-08-15 18:23:15,483 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-08-15 18:23:15,491 INFO L225 Difference]: With dead ends: 4672 [2024-08-15 18:23:15,491 INFO L226 Difference]: Without dead ends: 4672 [2024-08-15 18:23:15,491 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-08-15 18:23:15,492 INFO L413 NwaCegarLoop]: 284 mSDtfsCounter, 319 mSDsluCounter, 1329 mSDsCounter, 0 mSdLazyCounter, 346 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 321 SdHoareTripleChecker+Valid, 1613 SdHoareTripleChecker+Invalid, 349 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 346 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-08-15 18:23:15,492 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [321 Valid, 1613 Invalid, 349 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 346 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-08-15 18:23:15,499 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4672 states. [2024-08-15 18:23:15,541 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4672 to 4643. [2024-08-15 18:23:15,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4643 states, 4535 states have (on average 1.5353914002205071) internal successors, (6963), 4538 states have internal predecessors, (6963), 83 states have call successors, (83), 25 states have call predecessors, (83), 24 states have return successors, (82), 79 states have call predecessors, (82), 82 states have call successors, (82) [2024-08-15 18:23:15,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4643 states to 4643 states and 7128 transitions. [2024-08-15 18:23:15,553 INFO L78 Accepts]: Start accepts. Automaton has 4643 states and 7128 transitions. Word has length 1041 [2024-08-15 18:23:15,553 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-08-15 18:23:15,553 INFO L495 AbstractCegarLoop]: Abstraction has 4643 states and 7128 transitions. [2024-08-15 18:23:15,554 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 22.5) internal successors, (180), 8 states have internal predecessors, (180), 3 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2024-08-15 18:23:15,554 INFO L276 IsEmpty]: Start isEmpty. Operand 4643 states and 7128 transitions. [2024-08-15 18:23:15,566 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1043 [2024-08-15 18:23:15,566 INFO L187 NwaCegarLoop]: Found error trace [2024-08-15 18:23:15,567 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-08-15 18:23:15,567 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-08-15 18:23:15,567 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-08-15 18:23:15,568 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-15 18:23:15,568 INFO L85 PathProgramCache]: Analyzing trace with hash 399223468, now seen corresponding path program 1 times [2024-08-15 18:23:15,568 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-15 18:23:15,568 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1025760450] [2024-08-15 18:23:15,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-15 18:23:15,569 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-15 18:23:21,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:23:25,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-08-15 18:23:25,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:23:25,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-08-15 18:23:25,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:23:25,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-08-15 18:23:25,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:23:25,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2024-08-15 18:23:25,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:23:25,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2024-08-15 18:23:25,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:23:25,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2024-08-15 18:23:25,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:23:25,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2024-08-15 18:23:25,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:23:25,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 328 [2024-08-15 18:23:25,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:23:25,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2024-08-15 18:23:25,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:23:25,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 433 [2024-08-15 18:23:25,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:23:25,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 479 [2024-08-15 18:23:25,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:23:25,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 495 [2024-08-15 18:23:25,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:23:25,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 584 [2024-08-15 18:23:25,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:23:25,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 630 [2024-08-15 18:23:25,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:23:25,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 646 [2024-08-15 18:23:25,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:23:25,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 735 [2024-08-15 18:23:25,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:23:25,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 781 [2024-08-15 18:23:25,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:23:25,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 797 [2024-08-15 18:23:25,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:23:25,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 886 [2024-08-15 18:23:25,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:23:25,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 932 [2024-08-15 18:23:25,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:23:25,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 948 [2024-08-15 18:23:25,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:23:25,055 INFO L134 CoverageAnalysis]: Checked inductivity of 3169 backedges. 138 proven. 0 refuted. 0 times theorem prover too weak. 3031 trivial. 0 not checked. [2024-08-15 18:23:25,056 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-15 18:23:25,056 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1025760450] [2024-08-15 18:23:25,056 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1025760450] provided 1 perfect and 0 imperfect interpolant sequences [2024-08-15 18:23:25,056 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-08-15 18:23:25,056 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-08-15 18:23:25,056 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [360516223] [2024-08-15 18:23:25,056 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-08-15 18:23:25,057 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-08-15 18:23:25,057 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-15 18:23:25,057 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-08-15 18:23:25,058 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-08-15 18:23:25,058 INFO L87 Difference]: Start difference. First operand 4643 states and 7128 transitions. Second operand has 8 states, 8 states have (on average 22.625) internal successors, (181), 8 states have internal predecessors, (181), 3 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2024-08-15 18:23:25,254 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-08-15 18:23:25,254 INFO L93 Difference]: Finished difference Result 4658 states and 7143 transitions. [2024-08-15 18:23:25,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-08-15 18:23:25,255 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 22.625) internal successors, (181), 8 states have internal predecessors, (181), 3 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) Word has length 1042 [2024-08-15 18:23:25,255 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-08-15 18:23:25,262 INFO L225 Difference]: With dead ends: 4658 [2024-08-15 18:23:25,262 INFO L226 Difference]: Without dead ends: 4658 [2024-08-15 18:23:25,262 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-08-15 18:23:25,263 INFO L413 NwaCegarLoop]: 284 mSDtfsCounter, 298 mSDsluCounter, 1361 mSDsCounter, 0 mSdLazyCounter, 346 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 300 SdHoareTripleChecker+Valid, 1645 SdHoareTripleChecker+Invalid, 347 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 346 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-08-15 18:23:25,263 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [300 Valid, 1645 Invalid, 347 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 346 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-08-15 18:23:25,266 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4658 states. [2024-08-15 18:23:25,302 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4658 to 4098. [2024-08-15 18:23:25,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4098 states, 4018 states have (on average 1.5555002488800398) internal successors, (6250), 4021 states have internal predecessors, (6250), 55 states have call successors, (55), 25 states have call predecessors, (55), 24 states have return successors, (54), 51 states have call predecessors, (54), 54 states have call successors, (54) [2024-08-15 18:23:25,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4098 states to 4098 states and 6359 transitions. [2024-08-15 18:23:25,313 INFO L78 Accepts]: Start accepts. Automaton has 4098 states and 6359 transitions. Word has length 1042 [2024-08-15 18:23:25,313 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-08-15 18:23:25,314 INFO L495 AbstractCegarLoop]: Abstraction has 4098 states and 6359 transitions. [2024-08-15 18:23:25,314 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 22.625) internal successors, (181), 8 states have internal predecessors, (181), 3 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2024-08-15 18:23:25,314 INFO L276 IsEmpty]: Start isEmpty. Operand 4098 states and 6359 transitions. [2024-08-15 18:23:25,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1043 [2024-08-15 18:23:25,323 INFO L187 NwaCegarLoop]: Found error trace [2024-08-15 18:23:25,324 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-08-15 18:23:25,324 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-08-15 18:23:25,324 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-08-15 18:23:25,324 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-15 18:23:25,325 INFO L85 PathProgramCache]: Analyzing trace with hash -10364981, now seen corresponding path program 1 times [2024-08-15 18:23:25,325 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-15 18:23:25,325 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1073565789] [2024-08-15 18:23:25,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-15 18:23:25,325 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-15 18:23:33,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:23:35,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-08-15 18:23:35,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:23:35,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-08-15 18:23:35,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:23:35,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-08-15 18:23:35,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:23:35,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2024-08-15 18:23:35,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:23:35,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2024-08-15 18:23:35,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:23:35,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2024-08-15 18:23:35,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:23:35,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2024-08-15 18:23:35,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:23:35,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 328 [2024-08-15 18:23:35,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:23:35,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2024-08-15 18:23:35,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:23:35,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 433 [2024-08-15 18:23:35,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:23:35,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 479 [2024-08-15 18:23:35,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:23:35,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 495 [2024-08-15 18:23:35,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:23:35,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 584 [2024-08-15 18:23:35,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:23:35,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 630 [2024-08-15 18:23:35,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:23:35,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 646 [2024-08-15 18:23:35,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:23:35,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 735 [2024-08-15 18:23:35,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:23:35,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 781 [2024-08-15 18:23:35,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:23:35,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 797 [2024-08-15 18:23:35,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:23:35,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 886 [2024-08-15 18:23:35,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:23:35,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 932 [2024-08-15 18:23:35,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:23:35,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 948 [2024-08-15 18:23:35,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:23:35,292 INFO L134 CoverageAnalysis]: Checked inductivity of 3169 backedges. 66 proven. 0 refuted. 0 times theorem prover too weak. 3103 trivial. 0 not checked. [2024-08-15 18:23:35,292 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-15 18:23:35,292 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1073565789] [2024-08-15 18:23:35,292 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1073565789] provided 1 perfect and 0 imperfect interpolant sequences [2024-08-15 18:23:35,292 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-08-15 18:23:35,293 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-08-15 18:23:35,293 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [331759144] [2024-08-15 18:23:35,293 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-08-15 18:23:35,293 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-08-15 18:23:35,293 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-15 18:23:35,294 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-08-15 18:23:35,294 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-08-15 18:23:35,294 INFO L87 Difference]: Start difference. First operand 4098 states and 6359 transitions. Second operand has 8 states, 8 states have (on average 21.25) internal successors, (170), 8 states have internal predecessors, (170), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-08-15 18:23:35,447 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-08-15 18:23:35,448 INFO L93 Difference]: Finished difference Result 4127 states and 6400 transitions. [2024-08-15 18:23:35,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-08-15 18:23:35,453 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 21.25) internal successors, (170), 8 states have internal predecessors, (170), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 1042 [2024-08-15 18:23:35,453 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-08-15 18:23:35,459 INFO L225 Difference]: With dead ends: 4127 [2024-08-15 18:23:35,459 INFO L226 Difference]: Without dead ends: 4123 [2024-08-15 18:23:35,460 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-08-15 18:23:35,464 INFO L413 NwaCegarLoop]: 288 mSDtfsCounter, 337 mSDsluCounter, 1415 mSDsCounter, 0 mSdLazyCounter, 324 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 340 SdHoareTripleChecker+Valid, 1703 SdHoareTripleChecker+Invalid, 326 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 324 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-08-15 18:23:35,467 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [340 Valid, 1703 Invalid, 326 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 324 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-08-15 18:23:35,469 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4123 states. [2024-08-15 18:23:35,501 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4123 to 4123. [2024-08-15 18:23:35,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4123 states, 4043 states have (on average 1.5550333910462528) internal successors, (6287), 4046 states have internal predecessors, (6287), 55 states have call successors, (55), 25 states have call predecessors, (55), 24 states have return successors, (54), 51 states have call predecessors, (54), 54 states have call successors, (54) [2024-08-15 18:23:35,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4123 states to 4123 states and 6396 transitions. [2024-08-15 18:23:35,512 INFO L78 Accepts]: Start accepts. Automaton has 4123 states and 6396 transitions. Word has length 1042 [2024-08-15 18:23:35,513 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-08-15 18:23:35,513 INFO L495 AbstractCegarLoop]: Abstraction has 4123 states and 6396 transitions. [2024-08-15 18:23:35,513 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 21.25) internal successors, (170), 8 states have internal predecessors, (170), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-08-15 18:23:35,513 INFO L276 IsEmpty]: Start isEmpty. Operand 4123 states and 6396 transitions. [2024-08-15 18:23:35,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1044 [2024-08-15 18:23:35,522 INFO L187 NwaCegarLoop]: Found error trace [2024-08-15 18:23:35,523 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-08-15 18:23:35,523 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-08-15 18:23:35,523 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-08-15 18:23:35,523 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-15 18:23:35,523 INFO L85 PathProgramCache]: Analyzing trace with hash 1049483488, now seen corresponding path program 1 times [2024-08-15 18:23:35,524 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-15 18:23:35,524 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1435507568] [2024-08-15 18:23:35,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-15 18:23:35,524 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-15 18:23:36,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:23:37,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-08-15 18:23:37,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:23:37,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-08-15 18:23:37,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:23:37,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-08-15 18:23:37,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:23:37,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2024-08-15 18:23:37,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:23:37,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2024-08-15 18:23:37,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:23:37,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2024-08-15 18:23:37,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:23:37,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 283 [2024-08-15 18:23:37,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:23:37,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 329 [2024-08-15 18:23:37,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:23:37,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 345 [2024-08-15 18:23:37,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:23:37,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 434 [2024-08-15 18:23:37,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:23:37,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 480 [2024-08-15 18:23:37,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:23:37,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 496 [2024-08-15 18:23:37,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:23:37,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 585 [2024-08-15 18:23:37,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:23:37,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 631 [2024-08-15 18:23:37,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:23:37,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 647 [2024-08-15 18:23:37,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:23:37,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 736 [2024-08-15 18:23:37,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:23:37,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 782 [2024-08-15 18:23:37,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:23:37,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 798 [2024-08-15 18:23:37,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:23:37,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 887 [2024-08-15 18:23:37,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:23:37,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 933 [2024-08-15 18:23:37,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:23:37,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 949 [2024-08-15 18:23:37,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:23:37,199 INFO L134 CoverageAnalysis]: Checked inductivity of 3169 backedges. 48 proven. 0 refuted. 0 times theorem prover too weak. 3121 trivial. 0 not checked. [2024-08-15 18:23:37,199 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-15 18:23:37,199 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1435507568] [2024-08-15 18:23:37,199 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1435507568] provided 1 perfect and 0 imperfect interpolant sequences [2024-08-15 18:23:37,200 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-08-15 18:23:37,200 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-08-15 18:23:37,200 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1761120207] [2024-08-15 18:23:37,200 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-08-15 18:23:37,200 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-08-15 18:23:37,201 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-15 18:23:37,201 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-08-15 18:23:37,201 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-08-15 18:23:37,201 INFO L87 Difference]: Start difference. First operand 4123 states and 6396 transitions. Second operand has 5 states, 5 states have (on average 33.6) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-08-15 18:23:37,222 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-08-15 18:23:37,222 INFO L93 Difference]: Finished difference Result 4121 states and 6392 transitions. [2024-08-15 18:23:37,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-08-15 18:23:37,223 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 33.6) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 1043 [2024-08-15 18:23:37,223 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-08-15 18:23:37,230 INFO L225 Difference]: With dead ends: 4121 [2024-08-15 18:23:37,230 INFO L226 Difference]: Without dead ends: 4098 [2024-08-15 18:23:37,230 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-08-15 18:23:37,231 INFO L413 NwaCegarLoop]: 336 mSDtfsCounter, 18 mSDsluCounter, 999 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 1335 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-08-15 18:23:37,231 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 1335 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-08-15 18:23:37,233 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4098 states. [2024-08-15 18:23:37,262 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4098 to 4098. [2024-08-15 18:23:37,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4098 states, 4018 states have (on average 1.555251368840219) internal successors, (6249), 4021 states have internal predecessors, (6249), 55 states have call successors, (55), 25 states have call predecessors, (55), 24 states have return successors, (54), 51 states have call predecessors, (54), 54 states have call successors, (54) [2024-08-15 18:23:37,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4098 states to 4098 states and 6358 transitions. [2024-08-15 18:23:37,273 INFO L78 Accepts]: Start accepts. Automaton has 4098 states and 6358 transitions. Word has length 1043 [2024-08-15 18:23:37,273 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-08-15 18:23:37,273 INFO L495 AbstractCegarLoop]: Abstraction has 4098 states and 6358 transitions. [2024-08-15 18:23:37,273 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 33.6) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-08-15 18:23:37,273 INFO L276 IsEmpty]: Start isEmpty. Operand 4098 states and 6358 transitions. [2024-08-15 18:23:37,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1044 [2024-08-15 18:23:37,282 INFO L187 NwaCegarLoop]: Found error trace [2024-08-15 18:23:37,283 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-08-15 18:23:37,283 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-08-15 18:23:37,283 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-08-15 18:23:37,283 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-15 18:23:37,284 INFO L85 PathProgramCache]: Analyzing trace with hash 207959815, now seen corresponding path program 1 times [2024-08-15 18:23:37,284 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-15 18:23:37,284 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [129481013] [2024-08-15 18:23:37,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-15 18:23:37,284 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-15 18:23:53,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:23:56,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-08-15 18:23:56,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:23:56,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-08-15 18:23:56,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:23:56,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-08-15 18:23:56,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:23:56,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2024-08-15 18:23:56,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:23:56,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2024-08-15 18:23:56,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:23:56,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2024-08-15 18:23:56,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:23:56,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 283 [2024-08-15 18:23:56,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:23:56,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 329 [2024-08-15 18:23:56,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:23:56,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 345 [2024-08-15 18:23:56,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:23:56,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 434 [2024-08-15 18:23:56,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:23:56,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 480 [2024-08-15 18:23:56,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:23:56,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 496 [2024-08-15 18:23:56,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:23:56,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 585 [2024-08-15 18:23:56,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:23:56,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 631 [2024-08-15 18:23:56,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:23:56,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 647 [2024-08-15 18:23:56,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:23:56,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 736 [2024-08-15 18:23:56,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:23:56,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 782 [2024-08-15 18:23:56,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:23:56,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 798 [2024-08-15 18:23:56,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:23:56,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 887 [2024-08-15 18:23:56,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:23:56,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 933 [2024-08-15 18:23:56,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:23:56,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 949 [2024-08-15 18:23:56,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:23:56,773 INFO L134 CoverageAnalysis]: Checked inductivity of 3169 backedges. 1833 proven. 8 refuted. 0 times theorem prover too weak. 1328 trivial. 0 not checked. [2024-08-15 18:23:56,773 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-15 18:23:56,773 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [129481013] [2024-08-15 18:23:56,773 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [129481013] provided 0 perfect and 1 imperfect interpolant sequences [2024-08-15 18:23:56,773 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1866615858] [2024-08-15 18:23:56,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-15 18:23:56,774 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-15 18:23:56,774 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-08-15 18:23:56,775 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-08-15 18:23:56,776 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-08-15 18:24:00,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:24:00,317 INFO L262 TraceCheckSpWp]: Trace formula consists of 5401 conjuncts, 13 conjunts are in the unsatisfiable core [2024-08-15 18:24:00,335 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-08-15 18:24:00,377 INFO L134 CoverageAnalysis]: Checked inductivity of 3169 backedges. 1403 proven. 0 refuted. 0 times theorem prover too weak. 1766 trivial. 0 not checked. [2024-08-15 18:24:00,378 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-08-15 18:24:00,378 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1866615858] provided 1 perfect and 0 imperfect interpolant sequences [2024-08-15 18:24:00,378 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-08-15 18:24:00,378 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2024-08-15 18:24:00,378 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1180507453] [2024-08-15 18:24:00,378 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-08-15 18:24:00,379 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-08-15 18:24:00,379 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-15 18:24:00,380 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-08-15 18:24:00,380 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2024-08-15 18:24:00,380 INFO L87 Difference]: Start difference. First operand 4098 states and 6358 transitions. Second operand has 3 states, 3 states have (on average 102.0) internal successors, (306), 3 states have internal predecessors, (306), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-08-15 18:24:00,396 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-08-15 18:24:00,397 INFO L93 Difference]: Finished difference Result 4084 states and 6324 transitions. [2024-08-15 18:24:00,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-15 18:24:00,397 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 102.0) internal successors, (306), 3 states have internal predecessors, (306), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 1043 [2024-08-15 18:24:00,399 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-08-15 18:24:00,405 INFO L225 Difference]: With dead ends: 4084 [2024-08-15 18:24:00,405 INFO L226 Difference]: Without dead ends: 4084 [2024-08-15 18:24:00,406 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1095 GetRequests, 1086 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2024-08-15 18:24:00,406 INFO L413 NwaCegarLoop]: 333 mSDtfsCounter, 0 mSDsluCounter, 331 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 664 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-08-15 18:24:00,406 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 664 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-08-15 18:24:00,408 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4084 states. [2024-08-15 18:24:00,443 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4084 to 4084. [2024-08-15 18:24:00,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4084 states, 4004 states have (on average 1.5521978021978022) internal successors, (6215), 4007 states have internal predecessors, (6215), 55 states have call successors, (55), 25 states have call predecessors, (55), 24 states have return successors, (54), 51 states have call predecessors, (54), 54 states have call successors, (54) [2024-08-15 18:24:00,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4084 states to 4084 states and 6324 transitions. [2024-08-15 18:24:00,455 INFO L78 Accepts]: Start accepts. Automaton has 4084 states and 6324 transitions. Word has length 1043 [2024-08-15 18:24:00,455 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-08-15 18:24:00,455 INFO L495 AbstractCegarLoop]: Abstraction has 4084 states and 6324 transitions. [2024-08-15 18:24:00,456 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 102.0) internal successors, (306), 3 states have internal predecessors, (306), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-08-15 18:24:00,456 INFO L276 IsEmpty]: Start isEmpty. Operand 4084 states and 6324 transitions. [2024-08-15 18:24:00,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1049 [2024-08-15 18:24:00,465 INFO L187 NwaCegarLoop]: Found error trace [2024-08-15 18:24:00,466 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-08-15 18:24:00,507 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-08-15 18:24:00,666 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2024-08-15 18:24:00,667 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-08-15 18:24:00,667 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-15 18:24:00,668 INFO L85 PathProgramCache]: Analyzing trace with hash 389521795, now seen corresponding path program 1 times [2024-08-15 18:24:00,668 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-15 18:24:00,668 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1577674946] [2024-08-15 18:24:00,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-15 18:24:00,668 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-15 18:24:11,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:24:13,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-08-15 18:24:13,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:24:13,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-08-15 18:24:13,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:24:13,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-08-15 18:24:13,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:24:13,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2024-08-15 18:24:13,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:24:13,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2024-08-15 18:24:13,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:24:13,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2024-08-15 18:24:13,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:24:13,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 284 [2024-08-15 18:24:13,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:24:13,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 330 [2024-08-15 18:24:13,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:24:13,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 346 [2024-08-15 18:24:13,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:24:13,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 436 [2024-08-15 18:24:13,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:24:13,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 482 [2024-08-15 18:24:13,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:24:13,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 498 [2024-08-15 18:24:13,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:24:13,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 588 [2024-08-15 18:24:13,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:24:13,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 634 [2024-08-15 18:24:13,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:24:13,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 650 [2024-08-15 18:24:13,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:24:13,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 740 [2024-08-15 18:24:13,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:24:13,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 786 [2024-08-15 18:24:13,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:24:13,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 802 [2024-08-15 18:24:13,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:24:13,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 892 [2024-08-15 18:24:13,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:24:13,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 938 [2024-08-15 18:24:13,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:24:13,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 954 [2024-08-15 18:24:13,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:24:13,137 INFO L134 CoverageAnalysis]: Checked inductivity of 3172 backedges. 216 proven. 0 refuted. 0 times theorem prover too weak. 2956 trivial. 0 not checked. [2024-08-15 18:24:13,137 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-15 18:24:13,137 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1577674946] [2024-08-15 18:24:13,137 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1577674946] provided 1 perfect and 0 imperfect interpolant sequences [2024-08-15 18:24:13,137 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-08-15 18:24:13,137 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-08-15 18:24:13,137 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [281136824] [2024-08-15 18:24:13,137 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-08-15 18:24:13,138 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-08-15 18:24:13,138 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-15 18:24:13,139 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-08-15 18:24:13,139 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-08-15 18:24:13,139 INFO L87 Difference]: Start difference. First operand 4084 states and 6324 transitions. Second operand has 4 states, 4 states have (on average 49.5) internal successors, (198), 4 states have internal predecessors, (198), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-08-15 18:24:13,164 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-08-15 18:24:13,165 INFO L93 Difference]: Finished difference Result 4110 states and 6350 transitions. [2024-08-15 18:24:13,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-15 18:24:13,165 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 49.5) internal successors, (198), 4 states have internal predecessors, (198), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 1048 [2024-08-15 18:24:13,166 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-08-15 18:24:13,172 INFO L225 Difference]: With dead ends: 4110 [2024-08-15 18:24:13,173 INFO L226 Difference]: Without dead ends: 4110 [2024-08-15 18:24:13,173 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-08-15 18:24:13,173 INFO L413 NwaCegarLoop]: 334 mSDtfsCounter, 0 mSDsluCounter, 662 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 996 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 [2024-08-15 18:24:13,174 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 996 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-08-15 18:24:13,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4110 states. [2024-08-15 18:24:13,208 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4110 to 4110. [2024-08-15 18:24:13,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4110 states, 4030 states have (on average 1.54863523573201) internal successors, (6241), 4033 states have internal predecessors, (6241), 55 states have call successors, (55), 25 states have call predecessors, (55), 24 states have return successors, (54), 51 states have call predecessors, (54), 54 states have call successors, (54) [2024-08-15 18:24:13,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4110 states to 4110 states and 6350 transitions. [2024-08-15 18:24:13,224 INFO L78 Accepts]: Start accepts. Automaton has 4110 states and 6350 transitions. Word has length 1048 [2024-08-15 18:24:13,224 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-08-15 18:24:13,224 INFO L495 AbstractCegarLoop]: Abstraction has 4110 states and 6350 transitions. [2024-08-15 18:24:13,224 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 49.5) internal successors, (198), 4 states have internal predecessors, (198), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-08-15 18:24:13,224 INFO L276 IsEmpty]: Start isEmpty. Operand 4110 states and 6350 transitions. [2024-08-15 18:24:13,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1050 [2024-08-15 18:24:13,233 INFO L187 NwaCegarLoop]: Found error trace [2024-08-15 18:24:13,233 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-08-15 18:24:13,233 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-08-15 18:24:13,233 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-08-15 18:24:13,234 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-15 18:24:13,234 INFO L85 PathProgramCache]: Analyzing trace with hash 761949646, now seen corresponding path program 1 times [2024-08-15 18:24:13,234 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-15 18:24:13,234 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [902291312] [2024-08-15 18:24:13,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-15 18:24:13,234 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-15 18:24:22,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:24:27,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-08-15 18:24:27,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:24:27,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-08-15 18:24:27,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:24:27,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-08-15 18:24:27,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:24:27,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2024-08-15 18:24:27,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:24:27,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2024-08-15 18:24:27,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:24:27,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2024-08-15 18:24:27,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:24:27,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 285 [2024-08-15 18:24:27,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:24:27,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 331 [2024-08-15 18:24:27,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:24:27,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 347 [2024-08-15 18:24:27,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:24:27,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 437 [2024-08-15 18:24:27,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:24:27,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 483 [2024-08-15 18:24:27,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:24:27,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 499 [2024-08-15 18:24:27,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:24:27,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 589 [2024-08-15 18:24:27,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:24:27,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 635 [2024-08-15 18:24:27,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:24:27,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 651 [2024-08-15 18:24:27,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:24:27,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 741 [2024-08-15 18:24:27,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:24:27,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 787 [2024-08-15 18:24:27,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:24:27,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 803 [2024-08-15 18:24:27,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:24:27,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 893 [2024-08-15 18:24:27,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:24:27,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 939 [2024-08-15 18:24:27,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:24:27,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 955 [2024-08-15 18:24:27,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:24:27,241 INFO L134 CoverageAnalysis]: Checked inductivity of 3190 backedges. 654 proven. 0 refuted. 0 times theorem prover too weak. 2536 trivial. 0 not checked. [2024-08-15 18:24:27,241 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-15 18:24:27,241 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [902291312] [2024-08-15 18:24:27,242 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [902291312] provided 1 perfect and 0 imperfect interpolant sequences [2024-08-15 18:24:27,242 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-08-15 18:24:27,242 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-08-15 18:24:27,242 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1565337326] [2024-08-15 18:24:27,242 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-08-15 18:24:27,243 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-08-15 18:24:27,243 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-15 18:24:27,243 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-08-15 18:24:27,243 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2024-08-15 18:24:27,244 INFO L87 Difference]: Start difference. First operand 4110 states and 6350 transitions. Second operand has 10 states, 10 states have (on average 26.5) internal successors, (265), 10 states have internal predecessors, (265), 4 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (6), 4 states have call predecessors, (6), 4 states have call successors, (6) [2024-08-15 18:24:27,566 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-08-15 18:24:27,566 INFO L93 Difference]: Finished difference Result 4110 states and 6349 transitions. [2024-08-15 18:24:27,567 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-08-15 18:24:27,567 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 26.5) internal successors, (265), 10 states have internal predecessors, (265), 4 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (6), 4 states have call predecessors, (6), 4 states have call successors, (6) Word has length 1049 [2024-08-15 18:24:27,567 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-08-15 18:24:27,572 INFO L225 Difference]: With dead ends: 4110 [2024-08-15 18:24:27,572 INFO L226 Difference]: Without dead ends: 4110 [2024-08-15 18:24:27,573 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 45 SyntacticMatches, 1 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=67, Invalid=205, Unknown=0, NotChecked=0, Total=272 [2024-08-15 18:24:27,573 INFO L413 NwaCegarLoop]: 300 mSDtfsCounter, 1145 mSDsluCounter, 1669 mSDsCounter, 0 mSdLazyCounter, 349 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1148 SdHoareTripleChecker+Valid, 1969 SdHoareTripleChecker+Invalid, 354 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 349 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-08-15 18:24:27,573 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1148 Valid, 1969 Invalid, 354 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 349 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-08-15 18:24:27,575 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4110 states. [2024-08-15 18:24:27,603 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4110 to 4110. [2024-08-15 18:24:27,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4110 states, 4030 states have (on average 1.5483870967741935) internal successors, (6240), 4033 states have internal predecessors, (6240), 55 states have call successors, (55), 25 states have call predecessors, (55), 24 states have return successors, (54), 51 states have call predecessors, (54), 54 states have call successors, (54) [2024-08-15 18:24:27,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4110 states to 4110 states and 6349 transitions. [2024-08-15 18:24:27,612 INFO L78 Accepts]: Start accepts. Automaton has 4110 states and 6349 transitions. Word has length 1049 [2024-08-15 18:24:27,612 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-08-15 18:24:27,612 INFO L495 AbstractCegarLoop]: Abstraction has 4110 states and 6349 transitions. [2024-08-15 18:24:27,612 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 26.5) internal successors, (265), 10 states have internal predecessors, (265), 4 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (6), 4 states have call predecessors, (6), 4 states have call successors, (6) [2024-08-15 18:24:27,612 INFO L276 IsEmpty]: Start isEmpty. Operand 4110 states and 6349 transitions. [2024-08-15 18:24:27,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1050 [2024-08-15 18:24:27,619 INFO L187 NwaCegarLoop]: Found error trace [2024-08-15 18:24:27,620 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-08-15 18:24:27,620 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-08-15 18:24:27,620 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-08-15 18:24:27,620 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-15 18:24:27,621 INFO L85 PathProgramCache]: Analyzing trace with hash 816945261, now seen corresponding path program 1 times [2024-08-15 18:24:27,621 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-15 18:24:27,621 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1768139417] [2024-08-15 18:24:27,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-15 18:24:27,621 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-15 18:24:44,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:24:50,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-08-15 18:24:50,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:24:50,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-08-15 18:24:50,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:24:50,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-08-15 18:24:50,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:24:50,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2024-08-15 18:24:50,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:24:50,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2024-08-15 18:24:50,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:24:50,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2024-08-15 18:24:50,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:24:50,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 285 [2024-08-15 18:24:50,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:24:50,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 331 [2024-08-15 18:24:50,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:24:50,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 347 [2024-08-15 18:24:50,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:24:50,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 437 [2024-08-15 18:24:50,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:24:50,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 483 [2024-08-15 18:24:50,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:24:50,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 499 [2024-08-15 18:24:50,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:24:50,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 589 [2024-08-15 18:24:50,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:24:50,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 635 [2024-08-15 18:24:50,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:24:50,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 651 [2024-08-15 18:24:50,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:24:50,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 741 [2024-08-15 18:24:50,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:24:50,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 787 [2024-08-15 18:24:50,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:24:50,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 803 [2024-08-15 18:24:50,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:24:50,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 893 [2024-08-15 18:24:50,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:24:50,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 939 [2024-08-15 18:24:50,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:24:50,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 955 [2024-08-15 18:24:50,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:24:50,569 INFO L134 CoverageAnalysis]: Checked inductivity of 3190 backedges. 816 proven. 0 refuted. 0 times theorem prover too weak. 2374 trivial. 0 not checked. [2024-08-15 18:24:50,569 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-15 18:24:50,569 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1768139417] [2024-08-15 18:24:50,570 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1768139417] provided 1 perfect and 0 imperfect interpolant sequences [2024-08-15 18:24:50,570 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-08-15 18:24:50,571 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-08-15 18:24:50,571 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [486917111] [2024-08-15 18:24:50,571 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-08-15 18:24:50,571 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-08-15 18:24:50,572 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-15 18:24:50,572 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-08-15 18:24:50,572 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2024-08-15 18:24:50,572 INFO L87 Difference]: Start difference. First operand 4110 states and 6349 transitions. Second operand has 11 states, 11 states have (on average 26.90909090909091) internal successors, (296), 11 states have internal predecessors, (296), 3 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-08-15 18:24:50,836 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-08-15 18:24:50,836 INFO L93 Difference]: Finished difference Result 4720 states and 7298 transitions. [2024-08-15 18:24:50,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-08-15 18:24:50,837 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 26.90909090909091) internal successors, (296), 11 states have internal predecessors, (296), 3 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 1049 [2024-08-15 18:24:50,837 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-08-15 18:24:50,842 INFO L225 Difference]: With dead ends: 4720 [2024-08-15 18:24:50,842 INFO L226 Difference]: Without dead ends: 4720 [2024-08-15 18:24:50,842 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=51, Invalid=159, Unknown=0, NotChecked=0, Total=210 [2024-08-15 18:24:50,843 INFO L413 NwaCegarLoop]: 304 mSDtfsCounter, 1138 mSDsluCounter, 2339 mSDsCounter, 0 mSdLazyCounter, 318 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1144 SdHoareTripleChecker+Valid, 2643 SdHoareTripleChecker+Invalid, 319 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 318 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-08-15 18:24:50,843 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1144 Valid, 2643 Invalid, 319 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 318 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-08-15 18:24:50,845 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4720 states. [2024-08-15 18:24:50,880 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4720 to 4415. [2024-08-15 18:24:50,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4415 states, 4332 states have (on average 1.5482456140350878) internal successors, (6707), 4335 states have internal predecessors, (6707), 58 states have call successors, (58), 25 states have call predecessors, (58), 24 states have return successors, (57), 54 states have call predecessors, (57), 57 states have call successors, (57) [2024-08-15 18:24:50,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4415 states to 4415 states and 6822 transitions. [2024-08-15 18:24:50,891 INFO L78 Accepts]: Start accepts. Automaton has 4415 states and 6822 transitions. Word has length 1049 [2024-08-15 18:24:50,891 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-08-15 18:24:50,891 INFO L495 AbstractCegarLoop]: Abstraction has 4415 states and 6822 transitions. [2024-08-15 18:24:50,891 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 26.90909090909091) internal successors, (296), 11 states have internal predecessors, (296), 3 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-08-15 18:24:50,891 INFO L276 IsEmpty]: Start isEmpty. Operand 4415 states and 6822 transitions. [2024-08-15 18:24:50,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1050 [2024-08-15 18:24:50,936 INFO L187 NwaCegarLoop]: Found error trace [2024-08-15 18:24:50,936 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-08-15 18:24:50,936 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-08-15 18:24:50,936 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-08-15 18:24:50,937 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-15 18:24:50,937 INFO L85 PathProgramCache]: Analyzing trace with hash 1445599948, now seen corresponding path program 1 times [2024-08-15 18:24:50,937 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-15 18:24:50,938 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1875058092] [2024-08-15 18:24:50,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-15 18:24:50,938 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-15 18:25:11,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:25:13,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-08-15 18:25:13,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:25:13,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-08-15 18:25:13,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:25:13,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-08-15 18:25:13,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:25:13,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2024-08-15 18:25:13,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:25:13,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2024-08-15 18:25:13,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:25:13,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2024-08-15 18:25:13,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:25:13,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 285 [2024-08-15 18:25:13,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:25:13,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 331 [2024-08-15 18:25:13,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:25:13,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 347 [2024-08-15 18:25:13,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:25:13,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 437 [2024-08-15 18:25:13,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:25:13,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 483 [2024-08-15 18:25:13,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:25:13,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 499 [2024-08-15 18:25:13,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:25:13,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 589 [2024-08-15 18:25:13,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:25:13,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 635 [2024-08-15 18:25:13,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:25:13,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 651 [2024-08-15 18:25:13,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:25:13,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 741 [2024-08-15 18:25:13,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:25:13,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 787 [2024-08-15 18:25:13,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:25:13,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 803 [2024-08-15 18:25:13,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:25:13,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 893 [2024-08-15 18:25:13,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:25:13,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 939 [2024-08-15 18:25:13,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:25:13,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 955 [2024-08-15 18:25:13,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:25:13,781 INFO L134 CoverageAnalysis]: Checked inductivity of 3190 backedges. 1825 proven. 16 refuted. 0 times theorem prover too weak. 1349 trivial. 0 not checked. [2024-08-15 18:25:13,781 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-15 18:25:13,781 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1875058092] [2024-08-15 18:25:13,781 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1875058092] provided 0 perfect and 1 imperfect interpolant sequences [2024-08-15 18:25:13,781 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [487976024] [2024-08-15 18:25:13,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-15 18:25:13,782 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-15 18:25:13,782 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-08-15 18:25:13,784 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-08-15 18:25:13,785 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-08-15 18:25:15,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:25:15,635 INFO L262 TraceCheckSpWp]: Trace formula consists of 5420 conjuncts, 7 conjunts are in the unsatisfiable core [2024-08-15 18:25:15,650 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-08-15 18:25:15,961 INFO L134 CoverageAnalysis]: Checked inductivity of 3190 backedges. 912 proven. 0 refuted. 0 times theorem prover too weak. 2278 trivial. 0 not checked. [2024-08-15 18:25:15,962 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-08-15 18:25:15,962 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [487976024] provided 1 perfect and 0 imperfect interpolant sequences [2024-08-15 18:25:15,962 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-08-15 18:25:15,962 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [9] total 11 [2024-08-15 18:25:15,962 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [246171052] [2024-08-15 18:25:15,962 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-08-15 18:25:15,963 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-08-15 18:25:15,963 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-15 18:25:15,963 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-08-15 18:25:15,963 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2024-08-15 18:25:15,964 INFO L87 Difference]: Start difference. First operand 4415 states and 6822 transitions. Second operand has 4 states, 4 states have (on average 74.75) internal successors, (299), 4 states have internal predecessors, (299), 3 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-08-15 18:25:16,055 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-08-15 18:25:16,056 INFO L93 Difference]: Finished difference Result 4415 states and 6806 transitions. [2024-08-15 18:25:16,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-15 18:25:16,057 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), 3 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 1049 [2024-08-15 18:25:16,057 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-08-15 18:25:16,062 INFO L225 Difference]: With dead ends: 4415 [2024-08-15 18:25:16,062 INFO L226 Difference]: Without dead ends: 4415 [2024-08-15 18:25:16,062 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1102 GetRequests, 1091 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2024-08-15 18:25:16,063 INFO L413 NwaCegarLoop]: 286 mSDtfsCounter, 173 mSDsluCounter, 297 mSDsCounter, 0 mSdLazyCounter, 101 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 173 SdHoareTripleChecker+Valid, 583 SdHoareTripleChecker+Invalid, 101 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 101 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-08-15 18:25:16,063 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [173 Valid, 583 Invalid, 101 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 101 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-08-15 18:25:16,065 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4415 states. [2024-08-15 18:25:16,097 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4415 to 4415. [2024-08-15 18:25:16,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4415 states, 4332 states have (on average 1.5445521698984304) internal successors, (6691), 4335 states have internal predecessors, (6691), 58 states have call successors, (58), 25 states have call predecessors, (58), 24 states have return successors, (57), 54 states have call predecessors, (57), 57 states have call successors, (57) [2024-08-15 18:25:16,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4415 states to 4415 states and 6806 transitions. [2024-08-15 18:25:16,108 INFO L78 Accepts]: Start accepts. Automaton has 4415 states and 6806 transitions. Word has length 1049 [2024-08-15 18:25:16,108 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-08-15 18:25:16,109 INFO L495 AbstractCegarLoop]: Abstraction has 4415 states and 6806 transitions. [2024-08-15 18:25:16,109 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 74.75) internal successors, (299), 4 states have internal predecessors, (299), 3 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-08-15 18:25:16,109 INFO L276 IsEmpty]: Start isEmpty. Operand 4415 states and 6806 transitions. [2024-08-15 18:25:16,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1051 [2024-08-15 18:25:16,117 INFO L187 NwaCegarLoop]: Found error trace [2024-08-15 18:25:16,117 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-08-15 18:25:16,154 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-08-15 18:25:16,318 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2024-08-15 18:25:16,318 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-08-15 18:25:16,319 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-15 18:25:16,319 INFO L85 PathProgramCache]: Analyzing trace with hash 1599150219, now seen corresponding path program 1 times [2024-08-15 18:25:16,319 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-15 18:25:16,319 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [371080277] [2024-08-15 18:25:16,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-15 18:25:16,319 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-15 18:25:33,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:25:39,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-08-15 18:25:39,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:25:39,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-08-15 18:25:39,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:25:39,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-08-15 18:25:39,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:25:39,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2024-08-15 18:25:39,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:25:39,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2024-08-15 18:25:39,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:25:39,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2024-08-15 18:25:39,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:25:39,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 286 [2024-08-15 18:25:39,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:25:39,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 332 [2024-08-15 18:25:39,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:25:39,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 348 [2024-08-15 18:25:39,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:25:39,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 438 [2024-08-15 18:25:39,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:25:39,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 484 [2024-08-15 18:25:39,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:25:39,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 500 [2024-08-15 18:25:39,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:25:39,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 590 [2024-08-15 18:25:39,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:25:39,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 636 [2024-08-15 18:25:39,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:25:39,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 652 [2024-08-15 18:25:39,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:25:39,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 742 [2024-08-15 18:25:39,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:25:39,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 788 [2024-08-15 18:25:39,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:25:39,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 804 [2024-08-15 18:25:39,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:25:39,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 894 [2024-08-15 18:25:39,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:25:39,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 940 [2024-08-15 18:25:39,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:25:39,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 956 [2024-08-15 18:25:39,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:25:39,191 INFO L134 CoverageAnalysis]: Checked inductivity of 3190 backedges. 816 proven. 0 refuted. 0 times theorem prover too weak. 2374 trivial. 0 not checked. [2024-08-15 18:25:39,191 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-15 18:25:39,192 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [371080277] [2024-08-15 18:25:39,192 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [371080277] provided 1 perfect and 0 imperfect interpolant sequences [2024-08-15 18:25:39,192 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-08-15 18:25:39,192 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-08-15 18:25:39,192 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [829744116] [2024-08-15 18:25:39,192 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-08-15 18:25:39,192 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-08-15 18:25:39,192 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-15 18:25:39,194 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-08-15 18:25:39,194 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2024-08-15 18:25:39,194 INFO L87 Difference]: Start difference. First operand 4415 states and 6806 transitions. Second operand has 11 states, 11 states have (on average 27.0) internal successors, (297), 11 states have internal predecessors, (297), 3 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-08-15 18:25:39,474 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-08-15 18:25:39,475 INFO L93 Difference]: Finished difference Result 4720 states and 7280 transitions. [2024-08-15 18:25:39,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-08-15 18:25:39,475 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 27.0) internal successors, (297), 11 states have internal predecessors, (297), 3 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 1050 [2024-08-15 18:25:39,476 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-08-15 18:25:39,481 INFO L225 Difference]: With dead ends: 4720 [2024-08-15 18:25:39,481 INFO L226 Difference]: Without dead ends: 4720 [2024-08-15 18:25:39,482 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=51, Invalid=159, Unknown=0, NotChecked=0, Total=210 [2024-08-15 18:25:39,483 INFO L413 NwaCegarLoop]: 310 mSDtfsCounter, 775 mSDsluCounter, 2661 mSDsCounter, 0 mSdLazyCounter, 346 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 781 SdHoareTripleChecker+Valid, 2971 SdHoareTripleChecker+Invalid, 346 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 346 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-08-15 18:25:39,483 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [781 Valid, 2971 Invalid, 346 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 346 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-08-15 18:25:39,485 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4720 states. [2024-08-15 18:25:39,519 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4720 to 4417. [2024-08-15 18:25:39,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4417 states, 4334 states have (on average 1.5443008767881865) internal successors, (6693), 4337 states have internal predecessors, (6693), 58 states have call successors, (58), 25 states have call predecessors, (58), 24 states have return successors, (57), 54 states have call predecessors, (57), 57 states have call successors, (57) [2024-08-15 18:25:39,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4417 states to 4417 states and 6808 transitions. [2024-08-15 18:25:39,530 INFO L78 Accepts]: Start accepts. Automaton has 4417 states and 6808 transitions. Word has length 1050 [2024-08-15 18:25:39,530 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-08-15 18:25:39,530 INFO L495 AbstractCegarLoop]: Abstraction has 4417 states and 6808 transitions. [2024-08-15 18:25:39,530 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 27.0) internal successors, (297), 11 states have internal predecessors, (297), 3 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-08-15 18:25:39,530 INFO L276 IsEmpty]: Start isEmpty. Operand 4417 states and 6808 transitions. [2024-08-15 18:25:39,538 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1051 [2024-08-15 18:25:39,538 INFO L187 NwaCegarLoop]: Found error trace [2024-08-15 18:25:39,539 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-08-15 18:25:39,539 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2024-08-15 18:25:39,539 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-08-15 18:25:39,539 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-15 18:25:39,540 INFO L85 PathProgramCache]: Analyzing trace with hash -9132374, now seen corresponding path program 1 times [2024-08-15 18:25:39,540 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-15 18:25:39,540 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1545826399] [2024-08-15 18:25:39,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-15 18:25:39,540 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-15 18:25:55,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:26:01,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-08-15 18:26:01,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:26:01,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-08-15 18:26:01,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:26:01,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-08-15 18:26:01,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:26:01,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2024-08-15 18:26:01,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:26:01,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2024-08-15 18:26:01,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:26:01,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2024-08-15 18:26:01,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:26:01,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 286 [2024-08-15 18:26:01,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:26:01,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 332 [2024-08-15 18:26:01,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:26:01,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 348 [2024-08-15 18:26:01,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:26:01,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 438 [2024-08-15 18:26:01,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:26:01,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 484 [2024-08-15 18:26:01,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:26:01,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 500 [2024-08-15 18:26:01,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:26:01,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 590 [2024-08-15 18:26:01,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:26:01,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 636 [2024-08-15 18:26:01,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:26:01,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 652 [2024-08-15 18:26:01,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:26:01,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 742 [2024-08-15 18:26:01,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:26:01,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 788 [2024-08-15 18:26:01,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:26:01,607 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 804 [2024-08-15 18:26:01,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:26:01,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 894 [2024-08-15 18:26:01,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:26:01,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 940 [2024-08-15 18:26:01,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:26:01,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 956 [2024-08-15 18:26:01,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:26:01,611 INFO L134 CoverageAnalysis]: Checked inductivity of 3190 backedges. 2179 proven. 87 refuted. 0 times theorem prover too weak. 924 trivial. 0 not checked. [2024-08-15 18:26:01,611 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-15 18:26:01,612 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1545826399] [2024-08-15 18:26:01,612 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1545826399] provided 0 perfect and 1 imperfect interpolant sequences [2024-08-15 18:26:01,612 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [197329391] [2024-08-15 18:26:01,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-15 18:26:01,612 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-15 18:26:01,612 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-08-15 18:26:01,613 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-08-15 18:26:01,614 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-08-15 18:26:07,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:26:07,171 INFO L262 TraceCheckSpWp]: Trace formula consists of 5423 conjuncts, 95 conjunts are in the unsatisfiable core [2024-08-15 18:26:07,186 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-08-15 18:26:10,890 INFO L134 CoverageAnalysis]: Checked inductivity of 3190 backedges. 1805 proven. 478 refuted. 0 times theorem prover too weak. 907 trivial. 0 not checked. [2024-08-15 18:26:10,890 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-08-15 18:26:15,571 INFO L134 CoverageAnalysis]: Checked inductivity of 3190 backedges. 1930 proven. 416 refuted. 0 times theorem prover too weak. 844 trivial. 0 not checked. [2024-08-15 18:26:15,572 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [197329391] provided 0 perfect and 2 imperfect interpolant sequences [2024-08-15 18:26:15,572 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-08-15 18:26:15,572 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 16, 13] total 37 [2024-08-15 18:26:15,572 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1130712399] [2024-08-15 18:26:15,572 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-08-15 18:26:15,574 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 37 states [2024-08-15 18:26:15,574 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-15 18:26:15,576 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2024-08-15 18:26:15,576 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=182, Invalid=1150, Unknown=0, NotChecked=0, Total=1332 [2024-08-15 18:26:15,577 INFO L87 Difference]: Start difference. First operand 4417 states and 6808 transitions. Second operand has 37 states, 37 states have (on average 38.7027027027027) internal successors, (1432), 37 states have internal predecessors, (1432), 12 states have call successors, (35), 2 states have call predecessors, (35), 2 states have return successors, (34), 12 states have call predecessors, (34), 12 states have call successors, (34) [2024-08-15 18:26:21,503 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-08-15 18:26:21,504 INFO L93 Difference]: Finished difference Result 18654 states and 28431 transitions. [2024-08-15 18:26:21,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 97 states. [2024-08-15 18:26:21,504 INFO L78 Accepts]: Start accepts. Automaton has has 37 states, 37 states have (on average 38.7027027027027) internal successors, (1432), 37 states have internal predecessors, (1432), 12 states have call successors, (35), 2 states have call predecessors, (35), 2 states have return successors, (34), 12 states have call predecessors, (34), 12 states have call successors, (34) Word has length 1050 [2024-08-15 18:26:21,505 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-08-15 18:26:21,528 INFO L225 Difference]: With dead ends: 18654 [2024-08-15 18:26:21,528 INFO L226 Difference]: Without dead ends: 18654 [2024-08-15 18:26:21,533 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2248 GetRequests, 2118 SyntacticMatches, 0 SemanticMatches, 130 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4739 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=2090, Invalid=15202, Unknown=0, NotChecked=0, Total=17292 [2024-08-15 18:26:21,533 INFO L413 NwaCegarLoop]: 895 mSDtfsCounter, 2569 mSDsluCounter, 18660 mSDsCounter, 0 mSdLazyCounter, 5886 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2569 SdHoareTripleChecker+Valid, 19555 SdHoareTripleChecker+Invalid, 5904 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 5886 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2024-08-15 18:26:21,534 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2569 Valid, 19555 Invalid, 5904 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 5886 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2024-08-15 18:26:21,546 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18654 states. [2024-08-15 18:26:21,659 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18654 to 11798. [2024-08-15 18:26:21,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11798 states, 11619 states have (on average 1.538600568035115) internal successors, (17877), 11629 states have internal predecessors, (17877), 154 states have call successors, (154), 25 states have call predecessors, (154), 24 states have return successors, (153), 143 states have call predecessors, (153), 153 states have call successors, (153) [2024-08-15 18:26:21,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11798 states to 11798 states and 18184 transitions. [2024-08-15 18:26:21,689 INFO L78 Accepts]: Start accepts. Automaton has 11798 states and 18184 transitions. Word has length 1050 [2024-08-15 18:26:21,690 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-08-15 18:26:21,690 INFO L495 AbstractCegarLoop]: Abstraction has 11798 states and 18184 transitions. [2024-08-15 18:26:21,690 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 37 states, 37 states have (on average 38.7027027027027) internal successors, (1432), 37 states have internal predecessors, (1432), 12 states have call successors, (35), 2 states have call predecessors, (35), 2 states have return successors, (34), 12 states have call predecessors, (34), 12 states have call successors, (34) [2024-08-15 18:26:21,690 INFO L276 IsEmpty]: Start isEmpty. Operand 11798 states and 18184 transitions. [2024-08-15 18:26:21,705 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1053 [2024-08-15 18:26:21,705 INFO L187 NwaCegarLoop]: Found error trace [2024-08-15 18:26:21,706 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-08-15 18:26:21,752 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2024-08-15 18:26:21,906 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-15 18:26:21,907 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-08-15 18:26:21,907 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-15 18:26:21,907 INFO L85 PathProgramCache]: Analyzing trace with hash -1395559961, now seen corresponding path program 1 times [2024-08-15 18:26:21,907 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-15 18:26:21,908 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [595932613] [2024-08-15 18:26:21,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-15 18:26:21,908 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-15 18:26:31,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:26:37,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-08-15 18:26:37,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:26:37,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-08-15 18:26:37,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:26:37,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-08-15 18:26:37,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:26:37,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2024-08-15 18:26:37,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:26:37,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2024-08-15 18:26:37,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:26:37,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2024-08-15 18:26:37,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:26:37,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 286 [2024-08-15 18:26:37,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:26:37,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 332 [2024-08-15 18:26:37,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:26:37,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 348 [2024-08-15 18:26:37,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:26:37,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 438 [2024-08-15 18:26:37,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:26:37,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 485 [2024-08-15 18:26:37,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:26:37,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 501 [2024-08-15 18:26:37,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:26:37,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 591 [2024-08-15 18:26:37,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:26:37,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 637 [2024-08-15 18:26:37,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:26:37,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 653 [2024-08-15 18:26:37,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:26:37,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 743 [2024-08-15 18:26:37,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:26:37,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 790 [2024-08-15 18:26:37,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:26:37,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 806 [2024-08-15 18:26:37,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:26:37,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 896 [2024-08-15 18:26:37,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:26:37,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 942 [2024-08-15 18:26:37,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:26:37,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 958 [2024-08-15 18:26:37,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:26:37,484 INFO L134 CoverageAnalysis]: Checked inductivity of 3193 backedges. 1821 proven. 59 refuted. 0 times theorem prover too weak. 1313 trivial. 0 not checked. [2024-08-15 18:26:37,484 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-15 18:26:37,484 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [595932613] [2024-08-15 18:26:37,484 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [595932613] provided 0 perfect and 1 imperfect interpolant sequences [2024-08-15 18:26:37,484 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1808700297] [2024-08-15 18:26:37,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-15 18:26:37,484 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-15 18:26:37,484 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-08-15 18:26:37,485 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-08-15 18:26:37,486 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-08-15 18:26:39,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:26:39,449 INFO L262 TraceCheckSpWp]: Trace formula consists of 5434 conjuncts, 7 conjunts are in the unsatisfiable core [2024-08-15 18:26:39,465 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-08-15 18:26:39,982 INFO L134 CoverageAnalysis]: Checked inductivity of 3193 backedges. 1494 proven. 2 refuted. 0 times theorem prover too weak. 1697 trivial. 0 not checked. [2024-08-15 18:26:39,983 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-08-15 18:26:40,577 INFO L134 CoverageAnalysis]: Checked inductivity of 3193 backedges. 1310 proven. 2 refuted. 0 times theorem prover too weak. 1881 trivial. 0 not checked. [2024-08-15 18:26:40,578 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1808700297] provided 0 perfect and 2 imperfect interpolant sequences [2024-08-15 18:26:40,578 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-08-15 18:26:40,578 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 4, 4] total 15 [2024-08-15 18:26:40,578 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1056504738] [2024-08-15 18:26:40,578 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-08-15 18:26:40,579 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-08-15 18:26:40,580 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-15 18:26:40,580 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-08-15 18:26:40,581 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=175, Unknown=0, NotChecked=0, Total=210 [2024-08-15 18:26:40,581 INFO L87 Difference]: Start difference. First operand 11798 states and 18184 transitions. Second operand has 15 states, 15 states have (on average 50.06666666666667) internal successors, (751), 15 states have internal predecessors, (751), 6 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (19), 6 states have call predecessors, (19), 6 states have call successors, (19) [2024-08-15 18:26:41,364 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-08-15 18:26:41,364 INFO L93 Difference]: Finished difference Result 17100 states and 26390 transitions. [2024-08-15 18:26:41,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-08-15 18:26:41,365 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 50.06666666666667) internal successors, (751), 15 states have internal predecessors, (751), 6 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (19), 6 states have call predecessors, (19), 6 states have call successors, (19) Word has length 1052 [2024-08-15 18:26:41,365 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-08-15 18:26:41,386 INFO L225 Difference]: With dead ends: 17100 [2024-08-15 18:26:41,387 INFO L226 Difference]: Without dead ends: 17100 [2024-08-15 18:26:41,387 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2168 GetRequests, 2143 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 80 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=151, Invalid=551, Unknown=0, NotChecked=0, Total=702 [2024-08-15 18:26:41,388 INFO L413 NwaCegarLoop]: 506 mSDtfsCounter, 1129 mSDsluCounter, 4228 mSDsCounter, 0 mSdLazyCounter, 1225 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1129 SdHoareTripleChecker+Valid, 4734 SdHoareTripleChecker+Invalid, 1228 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1225 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-08-15 18:26:41,388 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1129 Valid, 4734 Invalid, 1228 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1225 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-08-15 18:26:41,399 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17100 states. [2024-08-15 18:26:41,500 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17100 to 11816. [2024-08-15 18:26:41,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11816 states, 11637 states have (on average 1.534502019420813) internal successors, (17857), 11647 states have internal predecessors, (17857), 154 states have call successors, (154), 25 states have call predecessors, (154), 24 states have return successors, (153), 143 states have call predecessors, (153), 153 states have call successors, (153) [2024-08-15 18:26:41,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11816 states to 11816 states and 18164 transitions. [2024-08-15 18:26:41,533 INFO L78 Accepts]: Start accepts. Automaton has 11816 states and 18164 transitions. Word has length 1052 [2024-08-15 18:26:41,534 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-08-15 18:26:41,534 INFO L495 AbstractCegarLoop]: Abstraction has 11816 states and 18164 transitions. [2024-08-15 18:26:41,534 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 50.06666666666667) internal successors, (751), 15 states have internal predecessors, (751), 6 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (19), 6 states have call predecessors, (19), 6 states have call successors, (19) [2024-08-15 18:26:41,534 INFO L276 IsEmpty]: Start isEmpty. Operand 11816 states and 18164 transitions. [2024-08-15 18:26:41,549 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1057 [2024-08-15 18:26:41,549 INFO L187 NwaCegarLoop]: Found error trace [2024-08-15 18:26:41,550 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-08-15 18:26:41,585 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-08-15 18:26:41,750 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable30 [2024-08-15 18:26:41,751 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-08-15 18:26:41,751 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-15 18:26:41,751 INFO L85 PathProgramCache]: Analyzing trace with hash -1008284240, now seen corresponding path program 1 times [2024-08-15 18:26:41,752 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-15 18:26:41,752 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1277930004] [2024-08-15 18:26:41,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-15 18:26:41,752 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-15 18:26:58,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:27:00,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-08-15 18:27:00,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:27:00,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-08-15 18:27:00,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:27:00,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-08-15 18:27:00,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:27:00,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2024-08-15 18:27:00,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:27:00,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2024-08-15 18:27:00,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:27:00,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2024-08-15 18:27:00,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:27:00,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 286 [2024-08-15 18:27:00,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:27:00,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 333 [2024-08-15 18:27:00,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:27:00,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 349 [2024-08-15 18:27:00,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:27:00,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 439 [2024-08-15 18:27:00,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:27:00,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 487 [2024-08-15 18:27:00,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:27:00,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 503 [2024-08-15 18:27:00,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:27:00,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 593 [2024-08-15 18:27:00,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:27:00,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 639 [2024-08-15 18:27:00,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:27:00,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 655 [2024-08-15 18:27:00,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:27:00,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 745 [2024-08-15 18:27:00,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:27:00,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 793 [2024-08-15 18:27:00,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:27:00,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 809 [2024-08-15 18:27:00,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:27:00,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 899 [2024-08-15 18:27:00,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:27:00,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 946 [2024-08-15 18:27:00,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:27:00,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 962 [2024-08-15 18:27:00,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:27:00,977 INFO L134 CoverageAnalysis]: Checked inductivity of 3199 backedges. 1316 proven. 128 refuted. 0 times theorem prover too weak. 1755 trivial. 0 not checked. [2024-08-15 18:27:00,977 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-15 18:27:00,977 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1277930004] [2024-08-15 18:27:00,977 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1277930004] provided 0 perfect and 1 imperfect interpolant sequences [2024-08-15 18:27:00,977 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1570094452] [2024-08-15 18:27:00,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-15 18:27:00,977 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-15 18:27:00,977 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-08-15 18:27:00,978 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-08-15 18:27:00,979 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-08-15 18:27:02,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:27:02,978 INFO L262 TraceCheckSpWp]: Trace formula consists of 5441 conjuncts, 40 conjunts are in the unsatisfiable core [2024-08-15 18:27:03,064 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-08-15 18:27:03,660 INFO L134 CoverageAnalysis]: Checked inductivity of 3199 backedges. 1600 proven. 47 refuted. 0 times theorem prover too weak. 1552 trivial. 0 not checked. [2024-08-15 18:27:03,661 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-08-15 18:27:04,333 INFO L134 CoverageAnalysis]: Checked inductivity of 3199 backedges. 1617 proven. 13 refuted. 0 times theorem prover too weak. 1569 trivial. 0 not checked. [2024-08-15 18:27:04,333 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1570094452] provided 0 perfect and 2 imperfect interpolant sequences [2024-08-15 18:27:04,333 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-08-15 18:27:04,333 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 14, 11] total 25 [2024-08-15 18:27:04,333 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [984468996] [2024-08-15 18:27:04,334 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-08-15 18:27:04,335 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2024-08-15 18:27:04,335 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-15 18:27:04,336 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2024-08-15 18:27:04,336 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=540, Unknown=0, NotChecked=0, Total=600 [2024-08-15 18:27:04,336 INFO L87 Difference]: Start difference. First operand 11816 states and 18164 transitions. Second operand has 25 states, 21 states have (on average 36.142857142857146) internal successors, (759), 24 states have internal predecessors, (759), 9 states have call successors, (22), 3 states have call predecessors, (22), 2 states have return successors, (18), 5 states have call predecessors, (18), 7 states have call successors, (18) [2024-08-15 18:27:05,393 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-08-15 18:27:05,393 INFO L93 Difference]: Finished difference Result 13224 states and 19939 transitions. [2024-08-15 18:27:05,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2024-08-15 18:27:05,394 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 21 states have (on average 36.142857142857146) internal successors, (759), 24 states have internal predecessors, (759), 9 states have call successors, (22), 3 states have call predecessors, (22), 2 states have return successors, (18), 5 states have call predecessors, (18), 7 states have call successors, (18) Word has length 1056 [2024-08-15 18:27:05,394 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-08-15 18:27:05,420 INFO L225 Difference]: With dead ends: 13224 [2024-08-15 18:27:05,421 INFO L226 Difference]: Without dead ends: 12499 [2024-08-15 18:27:05,423 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2195 GetRequests, 2147 SyntacticMatches, 2 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 317 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=228, Invalid=2028, Unknown=0, NotChecked=0, Total=2256 [2024-08-15 18:27:05,423 INFO L413 NwaCegarLoop]: 607 mSDtfsCounter, 1451 mSDsluCounter, 10913 mSDsCounter, 0 mSdLazyCounter, 1769 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1454 SdHoareTripleChecker+Valid, 11520 SdHoareTripleChecker+Invalid, 1792 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 1769 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-08-15 18:27:05,423 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1454 Valid, 11520 Invalid, 1792 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 1769 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-08-15 18:27:05,433 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12499 states. [2024-08-15 18:27:05,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12499 to 11271. [2024-08-15 18:27:05,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11271 states, 11078 states have (on average 1.530871998555696) internal successors, (16959), 11105 states have internal predecessors, (16959), 164 states have call successors, (164), 29 states have call predecessors, (164), 28 states have return successors, (162), 136 states have call predecessors, (162), 162 states have call successors, (162) [2024-08-15 18:27:05,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11271 states to 11271 states and 17285 transitions. [2024-08-15 18:27:05,553 INFO L78 Accepts]: Start accepts. Automaton has 11271 states and 17285 transitions. Word has length 1056 [2024-08-15 18:27:05,553 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-08-15 18:27:05,553 INFO L495 AbstractCegarLoop]: Abstraction has 11271 states and 17285 transitions. [2024-08-15 18:27:05,553 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 21 states have (on average 36.142857142857146) internal successors, (759), 24 states have internal predecessors, (759), 9 states have call successors, (22), 3 states have call predecessors, (22), 2 states have return successors, (18), 5 states have call predecessors, (18), 7 states have call successors, (18) [2024-08-15 18:27:05,553 INFO L276 IsEmpty]: Start isEmpty. Operand 11271 states and 17285 transitions. [2024-08-15 18:27:05,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1057 [2024-08-15 18:27:05,568 INFO L187 NwaCegarLoop]: Found error trace [2024-08-15 18:27:05,569 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-08-15 18:27:05,608 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-08-15 18:27:05,769 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-15 18:27:05,770 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-08-15 18:27:05,770 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-15 18:27:05,771 INFO L85 PathProgramCache]: Analyzing trace with hash -67134203, now seen corresponding path program 2 times [2024-08-15 18:27:05,771 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-15 18:27:05,771 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1024291332] [2024-08-15 18:27:05,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-15 18:27:05,771 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-15 18:27:19,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:27:21,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-08-15 18:27:21,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:27:21,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-08-15 18:27:21,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:27:21,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-08-15 18:27:21,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:27:21,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2024-08-15 18:27:21,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:27:21,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2024-08-15 18:27:21,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:27:21,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2024-08-15 18:27:21,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:27:21,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2024-08-15 18:27:21,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:27:21,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 333 [2024-08-15 18:27:21,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:27:21,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 349 [2024-08-15 18:27:21,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:27:21,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 439 [2024-08-15 18:27:21,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:27:21,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 487 [2024-08-15 18:27:21,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:27:21,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 503 [2024-08-15 18:27:21,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:27:21,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 593 [2024-08-15 18:27:21,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:27:21,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 640 [2024-08-15 18:27:21,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:27:21,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 656 [2024-08-15 18:27:21,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:27:21,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 746 [2024-08-15 18:27:21,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:27:21,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 793 [2024-08-15 18:27:21,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:27:21,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 809 [2024-08-15 18:27:21,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:27:21,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 899 [2024-08-15 18:27:21,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:27:21,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 946 [2024-08-15 18:27:21,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:27:21,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 962 [2024-08-15 18:27:21,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:27:21,287 INFO L134 CoverageAnalysis]: Checked inductivity of 3199 backedges. 764 proven. 0 refuted. 0 times theorem prover too weak. 2435 trivial. 0 not checked. [2024-08-15 18:27:21,287 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-15 18:27:21,287 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1024291332] [2024-08-15 18:27:21,287 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1024291332] provided 1 perfect and 0 imperfect interpolant sequences [2024-08-15 18:27:21,287 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-08-15 18:27:21,287 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-08-15 18:27:21,287 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [939738943] [2024-08-15 18:27:21,287 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-08-15 18:27:21,288 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-08-15 18:27:21,288 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-15 18:27:21,288 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-08-15 18:27:21,289 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-08-15 18:27:21,289 INFO L87 Difference]: Start difference. First operand 11271 states and 17285 transitions. Second operand has 7 states, 7 states have (on average 41.714285714285715) internal successors, (292), 7 states have internal predecessors, (292), 3 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-08-15 18:27:21,435 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-08-15 18:27:21,435 INFO L93 Difference]: Finished difference Result 10075 states and 15435 transitions. [2024-08-15 18:27:21,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-08-15 18:27:21,435 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 41.714285714285715) internal successors, (292), 7 states have internal predecessors, (292), 3 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 1056 [2024-08-15 18:27:21,436 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-08-15 18:27:21,451 INFO L225 Difference]: With dead ends: 10075 [2024-08-15 18:27:21,451 INFO L226 Difference]: Without dead ends: 10075 [2024-08-15 18:27:21,451 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2024-08-15 18:27:21,452 INFO L413 NwaCegarLoop]: 305 mSDtfsCounter, 707 mSDsluCounter, 1218 mSDsCounter, 0 mSdLazyCounter, 162 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 710 SdHoareTripleChecker+Valid, 1523 SdHoareTripleChecker+Invalid, 165 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 162 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-08-15 18:27:21,452 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [710 Valid, 1523 Invalid, 165 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 162 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-08-15 18:27:21,458 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10075 states. [2024-08-15 18:27:21,526 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10075 to 10063. [2024-08-15 18:27:21,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10063 states, 9889 states have (on average 1.5299828091819192) internal successors, (15130), 9912 states have internal predecessors, (15130), 146 states have call successors, (146), 28 states have call predecessors, (146), 27 states have return successors, (144), 122 states have call predecessors, (144), 144 states have call successors, (144) [2024-08-15 18:27:21,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10063 states to 10063 states and 15420 transitions. [2024-08-15 18:27:21,557 INFO L78 Accepts]: Start accepts. Automaton has 10063 states and 15420 transitions. Word has length 1056 [2024-08-15 18:27:21,557 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-08-15 18:27:21,557 INFO L495 AbstractCegarLoop]: Abstraction has 10063 states and 15420 transitions. [2024-08-15 18:27:21,557 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 41.714285714285715) internal successors, (292), 7 states have internal predecessors, (292), 3 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-08-15 18:27:21,558 INFO L276 IsEmpty]: Start isEmpty. Operand 10063 states and 15420 transitions. [2024-08-15 18:27:21,572 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1057 [2024-08-15 18:27:21,572 INFO L187 NwaCegarLoop]: Found error trace [2024-08-15 18:27:21,573 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-08-15 18:27:21,573 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2024-08-15 18:27:21,574 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-08-15 18:27:21,574 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-15 18:27:21,574 INFO L85 PathProgramCache]: Analyzing trace with hash 627226744, now seen corresponding path program 1 times [2024-08-15 18:27:21,574 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-15 18:27:21,574 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [415000554] [2024-08-15 18:27:21,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-15 18:27:21,575 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-15 18:27:41,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:27:53,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-08-15 18:27:53,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:27:53,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-08-15 18:27:53,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:27:53,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-08-15 18:27:53,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:27:53,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2024-08-15 18:27:53,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:27:53,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2024-08-15 18:27:53,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:27:53,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2024-08-15 18:27:53,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:27:53,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2024-08-15 18:27:53,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:27:53,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 334 [2024-08-15 18:27:53,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:27:53,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 350 [2024-08-15 18:27:53,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:27:53,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 440 [2024-08-15 18:27:53,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:27:53,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 487 [2024-08-15 18:27:53,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:27:53,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 503 [2024-08-15 18:27:53,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:27:53,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 593 [2024-08-15 18:27:53,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:27:53,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 640 [2024-08-15 18:27:53,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:27:53,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 656 [2024-08-15 18:27:53,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:27:53,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 746 [2024-08-15 18:27:53,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:27:53,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 794 [2024-08-15 18:27:53,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:27:53,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 810 [2024-08-15 18:27:53,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:27:53,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 900 [2024-08-15 18:27:53,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:27:53,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 946 [2024-08-15 18:27:53,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:27:53,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 962 [2024-08-15 18:27:53,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:27:53,160 INFO L134 CoverageAnalysis]: Checked inductivity of 3199 backedges. 1648 proven. 705 refuted. 0 times theorem prover too weak. 846 trivial. 0 not checked. [2024-08-15 18:27:53,160 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-15 18:27:53,161 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [415000554] [2024-08-15 18:27:53,161 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [415000554] provided 0 perfect and 1 imperfect interpolant sequences [2024-08-15 18:27:53,161 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1939855177] [2024-08-15 18:27:53,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-15 18:27:53,161 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-15 18:27:53,161 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-08-15 18:27:53,163 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-08-15 18:27:53,170 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process