./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 26998269 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-2699826-m [2024-08-14 14:27:05,565 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-08-14 14:27:05,637 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-08-14 14:27:05,643 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-08-14 14:27:05,646 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-08-14 14:27:05,671 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-08-14 14:27:05,673 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-08-14 14:27:05,673 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-08-14 14:27:05,674 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-08-14 14:27:05,676 INFO L153 SettingsManager]: * Use memory slicer=true [2024-08-14 14:27:05,676 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-08-14 14:27:05,677 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-08-14 14:27:05,677 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-08-14 14:27:05,679 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-08-14 14:27:05,679 INFO L153 SettingsManager]: * Use SBE=true [2024-08-14 14:27:05,680 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-08-14 14:27:05,680 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-08-14 14:27:05,680 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-08-14 14:27:05,681 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-08-14 14:27:05,681 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-08-14 14:27:05,681 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-08-14 14:27:05,684 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-08-14 14:27:05,685 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-08-14 14:27:05,685 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-08-14 14:27:05,685 INFO L153 SettingsManager]: * Use constant arrays=true [2024-08-14 14:27:05,686 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-08-14 14:27:05,686 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-08-14 14:27:05,686 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-08-14 14:27:05,687 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-08-14 14:27:05,687 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-08-14 14:27:05,687 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-08-14 14:27:05,687 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-08-14 14:27:05,688 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-08-14 14:27:05,688 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-08-14 14:27:05,689 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-08-14 14:27:05,689 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-08-14 14:27:05,689 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-08-14 14:27:05,690 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-08-14 14:27:05,690 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-08-14 14:27:05,690 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-08-14 14:27:05,690 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.boogie.preprocessor: Replace while statements and if-then-else statements -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder: Size of a code block -> SequenceOfStatements [2024-08-14 14:27:05,941 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-08-14 14:27:05,967 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-08-14 14:27:05,971 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-08-14 14:27:05,972 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-08-14 14:27:05,973 INFO L274 PluginConnector]: Witness Parser initialized [2024-08-14 14:27:05,975 INFO L431 ainManager$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 [2024-08-14 14:27:06,114 INFO L270 PluginConnector]: Initializing CDTParser... [2024-08-14 14:27:06,115 INFO L274 PluginConnector]: CDTParser initialized [2024-08-14 14:27:06,115 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardware-verification-bv/btor2c-lazyMod.unsafe_analog_estimation_convergence.c [2024-08-14 14:27:07,627 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-08-14 14:27:07,862 INFO L384 CDTParser]: Found 1 translation units. [2024-08-14 14:27:07,862 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardware-verification-bv/btor2c-lazyMod.unsafe_analog_estimation_convergence.c [2024-08-14 14:27:07,874 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/734791689/873898dbbfd2473a814daa269f96436f/FLAG8068b62dd [2024-08-14 14:27:08,210 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/734791689/873898dbbfd2473a814daa269f96436f [2024-08-14 14:27:08,211 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-08-14 14:27:08,212 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2024-08-14 14:27:08,214 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-08-14 14:27:08,214 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-08-14 14:27:08,219 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-08-14 14:27:08,220 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser VIOLATION_WITNESS 14.08 02:27:06" (1/2) ... [2024-08-14 14:27:08,221 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2b9dbc6e and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator VIOLATION_WITNESS 14.08 02:27:08, skipping insertion in model container [2024-08-14 14:27:08,221 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser VIOLATION_WITNESS 14.08 02:27:06" (1/2) ... [2024-08-14 14:27:08,223 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@397e7d2d and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator VIOLATION_WITNESS 14.08 02:27:08, skipping insertion in model container [2024-08-14 14:27:08,223 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.08 02:27:08" (2/2) ... [2024-08-14 14:27:08,223 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2b9dbc6e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 02:27:08, skipping insertion in model container [2024-08-14 14:27:08,223 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.08 02:27:08" (2/2) ... [2024-08-14 14:27:08,257 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-08-14 14:27:08,427 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] [2024-08-14 14:27:08,552 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-08-14 14:27:08,568 INFO L200 MainTranslator]: Completed pre-run [2024-08-14 14:27:08,582 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] [2024-08-14 14:27:08,685 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-08-14 14:27:08,704 INFO L204 MainTranslator]: Completed translation [2024-08-14 14:27:08,705 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 02:27:08 WrapperNode [2024-08-14 14:27:08,705 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-08-14 14:27:08,706 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-08-14 14:27:08,707 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-08-14 14:27:08,707 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-08-14 14:27:08,720 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 02:27:08" (1/1) ... [2024-08-14 14:27:08,720 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 02:27:08" (1/1) ... [2024-08-14 14:27:08,753 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 02:27:08" (1/1) ... [2024-08-14 14:27:08,819 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]. [2024-08-14 14:27:08,821 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 02:27:08" (1/1) ... [2024-08-14 14:27:08,822 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 02:27:08" (1/1) ... [2024-08-14 14:27:08,858 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 02:27:08" (1/1) ... [2024-08-14 14:27:08,865 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 02:27:08" (1/1) ... [2024-08-14 14:27:08,876 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 02:27:08" (1/1) ... [2024-08-14 14:27:08,895 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-08-14 14:27:08,895 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-08-14 14:27:08,896 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-08-14 14:27:08,896 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-08-14 14:27:08,896 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 02:27:08" (1/1) ... [2024-08-14 14:27:08,911 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-08-14 14:27:08,922 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-08-14 14:27:08,936 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) [2024-08-14 14:27:08,938 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 [2024-08-14 14:27:08,981 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2024-08-14 14:27:08,981 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-08-14 14:27:08,982 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2024-08-14 14:27:08,982 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-08-14 14:27:08,982 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-08-14 14:27:08,983 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2024-08-14 14:27:08,983 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uchar [2024-08-14 14:27:08,983 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ushort [2024-08-14 14:27:08,983 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2024-08-14 14:27:08,983 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2024-08-14 14:27:08,984 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2024-08-14 14:27:08,984 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2024-08-14 14:27:08,984 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2024-08-14 14:27:08,984 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-08-14 14:27:08,984 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-08-14 14:27:08,984 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-08-14 14:27:08,984 INFO L130 BoogieDeclarations]: Found specification of procedure main [2024-08-14 14:27:08,984 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2024-08-14 14:27:08,985 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-08-14 14:27:08,985 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-08-14 14:27:08,985 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-08-14 14:27:08,985 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-08-14 14:27:08,985 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-08-14 14:27:09,147 INFO L273 CfgBuilder]: Building ICFG [2024-08-14 14:27:09,150 INFO L304 CfgBuilder]: Building CFG for each procedure with an implementation [2024-08-14 14:27:10,484 INFO L? ?]: Removed 477 outVars from TransFormulas that were not future-live. [2024-08-14 14:27:10,485 INFO L327 CfgBuilder]: Performing block encoding [2024-08-14 14:27:10,501 INFO L349 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-08-14 14:27:10,501 INFO L354 CfgBuilder]: Removed 0 assume(true) statements. [2024-08-14 14:27:10,502 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 14.08 02:27:10 BoogieIcfgContainer [2024-08-14 14:27:10,502 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-08-14 14:27:10,505 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-08-14 14:27:10,505 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-08-14 14:27:10,509 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-08-14 14:27:10,509 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser VIOLATION_WITNESS 14.08 02:27:06" (1/4) ... [2024-08-14 14:27:10,510 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64c25a78 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction VIOLATION_WITNESS 14.08 02:27:10, skipping insertion in model container [2024-08-14 14:27:10,510 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.08 02:27:08" (2/4) ... [2024-08-14 14:27:10,510 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64c25a78 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.08 02:27:10, skipping insertion in model container [2024-08-14 14:27:10,510 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 02:27:08" (3/4) ... [2024-08-14 14:27:10,510 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64c25a78 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.08 02:27:10, skipping insertion in model container [2024-08-14 14:27:10,510 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 14.08 02:27:10" (4/4) ... [2024-08-14 14:27:10,512 INFO L119 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.unsafe_analog_estimation_convergence.c [2024-08-14 14:27:10,512 WARN L130 eAbstractionObserver]: Found a witness in the YAML format. I will only consider traces that are accepted by the witness [2024-08-14 14:27:10,534 INFO L221 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-08-14 14:27:10,535 INFO L180 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-08-14 14:27:10,571 INFO L92 WitnessUtils]: Constructing product of automaton with 226 states and violation witness of the following lengths: [63] [2024-08-14 14:27:10,580 INFO L82 GeneralOperation]: Start removeDeadEnds. Operand has 226 states, 215 states have (on average 1.6325581395348838) internal successors, (351), 216 states have internal predecessors, (351), 5 states have call successors, (5), 4 states have call predecessors, (5), 4 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-08-14 14:27:11,926 INFO L88 GeneralOperation]: Finished removeDeadEnds. Reduced from 7325 states to 7118 states. [2024-08-14 14:27:11,944 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-08-14 14:27:11,953 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;@4d6cda10, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-08-14 14:27:11,954 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-08-14 14:27:11,955 INFO L276 IsEmpty]: Start isEmpty. Operand 7118 states. [2024-08-14 14:27:12,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 964 [2024-08-14 14:27:12,021 INFO L187 NwaCegarLoop]: Found error trace [2024-08-14 14:27:12,023 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] [2024-08-14 14:27:12,023 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-08-14 14:27:12,028 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-14 14:27:12,029 INFO L85 PathProgramCache]: Analyzing trace with hash 1680199358, now seen corresponding path program 1 times [2024-08-14 14:27:12,037 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-14 14:27:12,038 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [482907960] [2024-08-14 14:27:12,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-14 14:27:12,039 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-14 14:27:13,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:27:17,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-08-14 14:27:17,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:27:17,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-08-14 14:27:17,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:27:17,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-08-14 14:27:17,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:27:17,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2024-08-14 14:27:17,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:27:17,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2024-08-14 14:27:17,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:27:17,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2024-08-14 14:27:17,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:27:17,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 264 [2024-08-14 14:27:17,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:27:17,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 303 [2024-08-14 14:27:17,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:27:17,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 317 [2024-08-14 14:27:17,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:27:17,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 403 [2024-08-14 14:27:17,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:27:17,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 442 [2024-08-14 14:27:17,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:27:17,883 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 456 [2024-08-14 14:27:17,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:27:17,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 542 [2024-08-14 14:27:17,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:27:17,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 581 [2024-08-14 14:27:17,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:27:17,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 595 [2024-08-14 14:27:17,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:27:17,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 681 [2024-08-14 14:27:17,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:27:17,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 720 [2024-08-14 14:27:17,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:27:17,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 734 [2024-08-14 14:27:17,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:27:17,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 820 [2024-08-14 14:27:17,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:27:17,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 859 [2024-08-14 14:27:17,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:27:17,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 873 [2024-08-14 14:27:17,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:27:17,920 INFO L134 CoverageAnalysis]: Checked inductivity of 2953 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 2929 trivial. 0 not checked. [2024-08-14 14:27:17,921 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-14 14:27:17,922 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [482907960] [2024-08-14 14:27:17,922 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [482907960] provided 1 perfect and 0 imperfect interpolant sequences [2024-08-14 14:27:17,922 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-08-14 14:27:17,923 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-08-14 14:27:17,924 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [974826200] [2024-08-14 14:27:17,925 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-08-14 14:27:17,930 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-08-14 14:27:17,930 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-14 14:27:17,965 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-08-14 14:27:17,966 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-08-14 14:27:17,968 INFO L87 Difference]: Start difference. First operand 7118 states. 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) [2024-08-14 14:27:18,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-08-14 14:27:18,088 INFO L93 Difference]: Finished difference Result 1895 states and 3028 transitions. [2024-08-14 14:27:18,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-08-14 14:27:18,091 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 [2024-08-14 14:27:18,095 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-08-14 14:27:18,103 INFO L225 Difference]: With dead ends: 1895 [2024-08-14 14:27:18,104 INFO L226 Difference]: Without dead ends: 1889 [2024-08-14 14:27:18,106 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 [2024-08-14 14:27:18,109 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 [2024-08-14 14:27:18,110 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] [2024-08-14 14:27:18,131 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1889 states. [2024-08-14 14:27:18,213 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1889 to 1469. [2024-08-14 14:27:18,220 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) [2024-08-14 14:27:18,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1469 states to 1469 states and 2351 transitions. [2024-08-14 14:27:18,239 INFO L78 Accepts]: Start accepts. Automaton has 1469 states and 2351 transitions. Word has length 963 [2024-08-14 14:27:18,244 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-08-14 14:27:18,244 INFO L495 AbstractCegarLoop]: Abstraction has 1469 states and 2351 transitions. [2024-08-14 14:27:18,245 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) [2024-08-14 14:27:18,245 INFO L276 IsEmpty]: Start isEmpty. Operand 1469 states and 2351 transitions. [2024-08-14 14:27:18,266 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 965 [2024-08-14 14:27:18,267 INFO L187 NwaCegarLoop]: Found error trace [2024-08-14 14:27:18,267 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] [2024-08-14 14:27:18,268 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-08-14 14:27:18,268 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-08-14 14:27:18,269 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-14 14:27:18,269 INFO L85 PathProgramCache]: Analyzing trace with hash -1295461086, now seen corresponding path program 1 times [2024-08-14 14:27:18,269 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-14 14:27:18,269 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [935109055] [2024-08-14 14:27:18,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-14 14:27:18,270 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-14 14:27:19,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:27:21,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-08-14 14:27:21,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:27:21,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-08-14 14:27:21,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:27:21,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-08-14 14:27:21,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:27:21,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2024-08-14 14:27:21,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:27:21,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2024-08-14 14:27:21,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:27:21,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2024-08-14 14:27:21,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:27:21,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 264 [2024-08-14 14:27:21,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:27:21,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 303 [2024-08-14 14:27:21,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:27:21,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 317 [2024-08-14 14:27:21,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:27:21,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 403 [2024-08-14 14:27:21,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:27:21,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 442 [2024-08-14 14:27:21,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:27:21,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 456 [2024-08-14 14:27:21,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:27:21,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 542 [2024-08-14 14:27:21,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:27:21,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 581 [2024-08-14 14:27:21,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:27:21,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 595 [2024-08-14 14:27:21,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:27:21,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 681 [2024-08-14 14:27:21,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:27:21,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 720 [2024-08-14 14:27:21,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:27:21,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 734 [2024-08-14 14:27:21,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:27:21,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 820 [2024-08-14 14:27:21,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:27:21,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 859 [2024-08-14 14:27:21,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:27:21,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 873 [2024-08-14 14:27:21,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:27:21,596 INFO L134 CoverageAnalysis]: Checked inductivity of 2953 backedges. 24 proven. 72 refuted. 0 times theorem prover too weak. 2857 trivial. 0 not checked. [2024-08-14 14:27:21,596 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-14 14:27:21,596 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [935109055] [2024-08-14 14:27:21,597 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [935109055] provided 0 perfect and 1 imperfect interpolant sequences [2024-08-14 14:27:21,597 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1582284459] [2024-08-14 14:27:21,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-14 14:27:21,597 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-14 14:27:21,598 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-08-14 14:27:21,600 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) [2024-08-14 14:27:21,601 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-08-14 14:27:23,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:27:23,075 INFO L262 TraceCheckSpWp]: Trace formula consists of 5131 conjuncts, 8 conjunts are in the unsatisfiable core [2024-08-14 14:27:23,120 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-08-14 14:27:23,327 INFO L134 CoverageAnalysis]: Checked inductivity of 2953 backedges. 124 proven. 0 refuted. 0 times theorem prover too weak. 2829 trivial. 0 not checked. [2024-08-14 14:27:23,327 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-08-14 14:27:23,327 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1582284459] provided 1 perfect and 0 imperfect interpolant sequences [2024-08-14 14:27:23,328 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-08-14 14:27:23,328 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 7 [2024-08-14 14:27:23,329 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [399992918] [2024-08-14 14:27:23,329 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-08-14 14:27:23,330 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-08-14 14:27:23,330 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-14 14:27:23,331 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-08-14 14:27:23,331 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-08-14 14:27:23,332 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) [2024-08-14 14:27:23,484 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-08-14 14:27:23,484 INFO L93 Difference]: Finished difference Result 1469 states and 2335 transitions. [2024-08-14 14:27:23,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-14 14:27:23,485 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 [2024-08-14 14:27:23,486 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-08-14 14:27:23,492 INFO L225 Difference]: With dead ends: 1469 [2024-08-14 14:27:23,492 INFO L226 Difference]: Without dead ends: 1469 [2024-08-14 14:27:23,493 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 [2024-08-14 14:27:23,496 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 [2024-08-14 14:27:23,496 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] [2024-08-14 14:27:23,500 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1469 states. [2024-08-14 14:27:23,562 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1469 to 1469. [2024-08-14 14:27:23,565 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) [2024-08-14 14:27:23,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1469 states to 1469 states and 2335 transitions. [2024-08-14 14:27:23,571 INFO L78 Accepts]: Start accepts. Automaton has 1469 states and 2335 transitions. Word has length 964 [2024-08-14 14:27:23,571 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-08-14 14:27:23,571 INFO L495 AbstractCegarLoop]: Abstraction has 1469 states and 2335 transitions. [2024-08-14 14:27:23,571 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) [2024-08-14 14:27:23,572 INFO L276 IsEmpty]: Start isEmpty. Operand 1469 states and 2335 transitions. [2024-08-14 14:27:23,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 972 [2024-08-14 14:27:23,580 INFO L187 NwaCegarLoop]: Found error trace [2024-08-14 14:27:23,581 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] [2024-08-14 14:27:23,605 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-08-14 14:27:23,781 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 [2024-08-14 14:27:23,782 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-08-14 14:27:23,783 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-14 14:27:23,783 INFO L85 PathProgramCache]: Analyzing trace with hash -1622188889, now seen corresponding path program 1 times [2024-08-14 14:27:23,783 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-14 14:27:23,784 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1789081024] [2024-08-14 14:27:23,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-14 14:27:23,784 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-14 14:27:24,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:27:26,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-08-14 14:27:26,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:27:26,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-08-14 14:27:26,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:27:26,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-08-14 14:27:26,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:27:26,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2024-08-14 14:27:26,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:27:26,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2024-08-14 14:27:26,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:27:26,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2024-08-14 14:27:26,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:27:26,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 266 [2024-08-14 14:27:26,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:27:26,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 305 [2024-08-14 14:27:26,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:27:26,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 320 [2024-08-14 14:27:26,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:27:26,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 406 [2024-08-14 14:27:26,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:27:26,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 445 [2024-08-14 14:27:26,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:27:26,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 460 [2024-08-14 14:27:26,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:27:26,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 546 [2024-08-14 14:27:26,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:27:26,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 585 [2024-08-14 14:27:26,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:27:26,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 600 [2024-08-14 14:27:26,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:27:26,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 686 [2024-08-14 14:27:26,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:27:26,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 725 [2024-08-14 14:27:26,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:27:26,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 740 [2024-08-14 14:27:26,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:27:26,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 826 [2024-08-14 14:27:26,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:27:26,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 865 [2024-08-14 14:27:26,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:27:26,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 880 [2024-08-14 14:27:26,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:27:26,470 INFO L134 CoverageAnalysis]: Checked inductivity of 2974 backedges. 670 proven. 0 refuted. 0 times theorem prover too weak. 2304 trivial. 0 not checked. [2024-08-14 14:27:26,470 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-14 14:27:26,470 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1789081024] [2024-08-14 14:27:26,471 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1789081024] provided 1 perfect and 0 imperfect interpolant sequences [2024-08-14 14:27:26,471 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-08-14 14:27:26,471 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-08-14 14:27:26,471 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1189408356] [2024-08-14 14:27:26,471 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-08-14 14:27:26,472 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-08-14 14:27:26,472 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-14 14:27:26,473 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-08-14 14:27:26,473 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-08-14 14:27:26,474 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) [2024-08-14 14:27:26,621 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-08-14 14:27:26,621 INFO L93 Difference]: Finished difference Result 1469 states and 2328 transitions. [2024-08-14 14:27:26,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-14 14:27:26,622 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 [2024-08-14 14:27:26,622 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-08-14 14:27:26,628 INFO L225 Difference]: With dead ends: 1469 [2024-08-14 14:27:26,628 INFO L226 Difference]: Without dead ends: 1469 [2024-08-14 14:27:26,629 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 [2024-08-14 14:27:26,629 INFO L413 NwaCegarLoop]: 294 mSDtfsCounter, 235 mSDsluCounter, 321 mSDsCounter, 0 mSdLazyCounter, 115 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 236 SdHoareTripleChecker+Valid, 615 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 [2024-08-14 14:27:26,630 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [236 Valid, 615 Invalid, 116 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 115 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-08-14 14:27:26,632 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1469 states. [2024-08-14 14:27:26,653 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1469 to 1469. [2024-08-14 14:27:26,656 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) [2024-08-14 14:27:26,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1469 states to 1469 states and 2328 transitions. [2024-08-14 14:27:26,663 INFO L78 Accepts]: Start accepts. Automaton has 1469 states and 2328 transitions. Word has length 971 [2024-08-14 14:27:26,664 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-08-14 14:27:26,664 INFO L495 AbstractCegarLoop]: Abstraction has 1469 states and 2328 transitions. [2024-08-14 14:27:26,664 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) [2024-08-14 14:27:26,665 INFO L276 IsEmpty]: Start isEmpty. Operand 1469 states and 2328 transitions. [2024-08-14 14:27:26,675 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 978 [2024-08-14 14:27:26,675 INFO L187 NwaCegarLoop]: Found error trace [2024-08-14 14:27:26,676 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] [2024-08-14 14:27:26,676 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-08-14 14:27:26,676 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-08-14 14:27:26,677 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-14 14:27:26,677 INFO L85 PathProgramCache]: Analyzing trace with hash 652445199, now seen corresponding path program 1 times [2024-08-14 14:27:26,677 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-14 14:27:26,679 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [558572229] [2024-08-14 14:27:26,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-14 14:27:26,680 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-14 14:27:27,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:27:28,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-08-14 14:27:28,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:27:28,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-08-14 14:27:28,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:27:28,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-08-14 14:27:28,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:27:28,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2024-08-14 14:27:28,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:27:28,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2024-08-14 14:27:28,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:27:28,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2024-08-14 14:27:28,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:27:28,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 267 [2024-08-14 14:27:28,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:27:28,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 307 [2024-08-14 14:27:28,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:27:28,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 322 [2024-08-14 14:27:28,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:27:28,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 408 [2024-08-14 14:27:28,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:27:28,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 448 [2024-08-14 14:27:28,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:27:28,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 463 [2024-08-14 14:27:28,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:27:28,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 549 [2024-08-14 14:27:28,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:27:28,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 589 [2024-08-14 14:27:28,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:27:28,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 604 [2024-08-14 14:27:28,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:27:28,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 690 [2024-08-14 14:27:28,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:27:28,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 730 [2024-08-14 14:27:28,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:27:28,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 745 [2024-08-14 14:27:28,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:27:28,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 831 [2024-08-14 14:27:28,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:27:28,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 871 [2024-08-14 14:27:28,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:27:28,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 886 [2024-08-14 14:27:28,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:27:28,893 INFO L134 CoverageAnalysis]: Checked inductivity of 2989 backedges. 685 proven. 0 refuted. 0 times theorem prover too weak. 2304 trivial. 0 not checked. [2024-08-14 14:27:28,895 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-14 14:27:28,895 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [558572229] [2024-08-14 14:27:28,895 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [558572229] provided 1 perfect and 0 imperfect interpolant sequences [2024-08-14 14:27:28,896 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-08-14 14:27:28,896 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-08-14 14:27:28,896 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [950336991] [2024-08-14 14:27:28,896 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-08-14 14:27:28,897 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-08-14 14:27:28,897 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-14 14:27:28,898 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-08-14 14:27:28,898 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-08-14 14:27:28,900 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) [2024-08-14 14:27:29,054 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-08-14 14:27:29,056 INFO L93 Difference]: Finished difference Result 1469 states and 2321 transitions. [2024-08-14 14:27:29,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-14 14:27:29,057 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 [2024-08-14 14:27:29,057 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-08-14 14:27:29,063 INFO L225 Difference]: With dead ends: 1469 [2024-08-14 14:27:29,063 INFO L226 Difference]: Without dead ends: 1469 [2024-08-14 14:27:29,063 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 [2024-08-14 14:27:29,064 INFO L413 NwaCegarLoop]: 294 mSDtfsCounter, 231 mSDsluCounter, 321 mSDsCounter, 0 mSdLazyCounter, 113 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 232 SdHoareTripleChecker+Valid, 615 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 [2024-08-14 14:27:29,065 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [232 Valid, 615 Invalid, 114 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 113 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-08-14 14:27:29,067 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1469 states. [2024-08-14 14:27:29,103 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1469 to 1469. [2024-08-14 14:27:29,111 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) [2024-08-14 14:27:29,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1469 states to 1469 states and 2321 transitions. [2024-08-14 14:27:29,117 INFO L78 Accepts]: Start accepts. Automaton has 1469 states and 2321 transitions. Word has length 977 [2024-08-14 14:27:29,117 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-08-14 14:27:29,118 INFO L495 AbstractCegarLoop]: Abstraction has 1469 states and 2321 transitions. [2024-08-14 14:27:29,118 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) [2024-08-14 14:27:29,119 INFO L276 IsEmpty]: Start isEmpty. Operand 1469 states and 2321 transitions. [2024-08-14 14:27:29,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 984 [2024-08-14 14:27:29,129 INFO L187 NwaCegarLoop]: Found error trace [2024-08-14 14:27:29,131 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] [2024-08-14 14:27:29,131 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-08-14 14:27:29,131 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-08-14 14:27:29,132 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-14 14:27:29,132 INFO L85 PathProgramCache]: Analyzing trace with hash 183701497, now seen corresponding path program 1 times [2024-08-14 14:27:29,132 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-14 14:27:29,132 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1584245035] [2024-08-14 14:27:29,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-14 14:27:29,133 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-14 14:27:29,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:27:31,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-08-14 14:27:31,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:27:31,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-08-14 14:27:31,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:27:31,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-08-14 14:27:31,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:27:31,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2024-08-14 14:27:31,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:27:31,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2024-08-14 14:27:31,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:27:31,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2024-08-14 14:27:31,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:27:31,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 268 [2024-08-14 14:27:31,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:27:31,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 309 [2024-08-14 14:27:31,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:27:31,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 324 [2024-08-14 14:27:31,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:27:31,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 410 [2024-08-14 14:27:31,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:27:31,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 451 [2024-08-14 14:27:31,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:27:31,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 466 [2024-08-14 14:27:31,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:27:31,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 552 [2024-08-14 14:27:31,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:27:31,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 593 [2024-08-14 14:27:31,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:27:31,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 608 [2024-08-14 14:27:31,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:27:31,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 694 [2024-08-14 14:27:31,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:27:31,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 735 [2024-08-14 14:27:31,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:27:31,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 750 [2024-08-14 14:27:31,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:27:31,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 836 [2024-08-14 14:27:31,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:27:31,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 877 [2024-08-14 14:27:31,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:27:31,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 892 [2024-08-14 14:27:31,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:27:31,440 INFO L134 CoverageAnalysis]: Checked inductivity of 3004 backedges. 700 proven. 0 refuted. 0 times theorem prover too weak. 2304 trivial. 0 not checked. [2024-08-14 14:27:31,440 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-14 14:27:31,440 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1584245035] [2024-08-14 14:27:31,441 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1584245035] provided 1 perfect and 0 imperfect interpolant sequences [2024-08-14 14:27:31,441 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-08-14 14:27:31,441 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-08-14 14:27:31,441 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1841226857] [2024-08-14 14:27:31,441 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-08-14 14:27:31,442 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-08-14 14:27:31,442 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-14 14:27:31,443 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-08-14 14:27:31,443 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-08-14 14:27:31,443 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) [2024-08-14 14:27:31,585 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-08-14 14:27:31,586 INFO L93 Difference]: Finished difference Result 1469 states and 2314 transitions. [2024-08-14 14:27:31,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-14 14:27:31,587 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 [2024-08-14 14:27:31,587 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-08-14 14:27:31,592 INFO L225 Difference]: With dead ends: 1469 [2024-08-14 14:27:31,593 INFO L226 Difference]: Without dead ends: 1469 [2024-08-14 14:27:31,593 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 [2024-08-14 14:27:31,594 INFO L413 NwaCegarLoop]: 294 mSDtfsCounter, 433 mSDsluCounter, 305 mSDsCounter, 0 mSdLazyCounter, 111 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 434 SdHoareTripleChecker+Valid, 599 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 [2024-08-14 14:27:31,594 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [434 Valid, 599 Invalid, 112 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 111 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-08-14 14:27:31,596 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1469 states. [2024-08-14 14:27:31,616 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1469 to 1469. [2024-08-14 14:27:31,618 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) [2024-08-14 14:27:31,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1469 states to 1469 states and 2314 transitions. [2024-08-14 14:27:31,624 INFO L78 Accepts]: Start accepts. Automaton has 1469 states and 2314 transitions. Word has length 983 [2024-08-14 14:27:31,624 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-08-14 14:27:31,624 INFO L495 AbstractCegarLoop]: Abstraction has 1469 states and 2314 transitions. [2024-08-14 14:27:31,624 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) [2024-08-14 14:27:31,625 INFO L276 IsEmpty]: Start isEmpty. Operand 1469 states and 2314 transitions. [2024-08-14 14:27:31,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 990 [2024-08-14 14:27:31,633 INFO L187 NwaCegarLoop]: Found error trace [2024-08-14 14:27:31,634 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] [2024-08-14 14:27:31,634 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-08-14 14:27:31,634 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-08-14 14:27:31,635 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-14 14:27:31,635 INFO L85 PathProgramCache]: Analyzing trace with hash -677568529, now seen corresponding path program 1 times [2024-08-14 14:27:31,635 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-14 14:27:31,635 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [338665020] [2024-08-14 14:27:31,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-14 14:27:31,636 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-14 14:27:32,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:27:34,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-08-14 14:27:34,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:27:34,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-08-14 14:27:34,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:27:34,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-08-14 14:27:34,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:27:34,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2024-08-14 14:27:34,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:27:34,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2024-08-14 14:27:34,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:27:34,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2024-08-14 14:27:34,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:27:34,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 269 [2024-08-14 14:27:34,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:27:34,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 311 [2024-08-14 14:27:34,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:27:34,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 326 [2024-08-14 14:27:34,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:27:34,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 412 [2024-08-14 14:27:34,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:27:34,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 454 [2024-08-14 14:27:34,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:27:34,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 469 [2024-08-14 14:27:34,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:27:34,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 555 [2024-08-14 14:27:34,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:27:34,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 597 [2024-08-14 14:27:34,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:27:34,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 612 [2024-08-14 14:27:34,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:27:34,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 698 [2024-08-14 14:27:34,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:27:34,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 740 [2024-08-14 14:27:34,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:27:34,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 755 [2024-08-14 14:27:34,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:27:34,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 841 [2024-08-14 14:27:34,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:27:34,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 883 [2024-08-14 14:27:34,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:27:34,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 898 [2024-08-14 14:27:34,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:27:34,286 INFO L134 CoverageAnalysis]: Checked inductivity of 3019 backedges. 755 proven. 0 refuted. 0 times theorem prover too weak. 2264 trivial. 0 not checked. [2024-08-14 14:27:34,287 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-14 14:27:34,287 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [338665020] [2024-08-14 14:27:34,288 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [338665020] provided 1 perfect and 0 imperfect interpolant sequences [2024-08-14 14:27:34,288 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-08-14 14:27:34,288 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-08-14 14:27:34,288 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [439982989] [2024-08-14 14:27:34,288 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-08-14 14:27:34,289 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-08-14 14:27:34,289 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-14 14:27:34,290 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-08-14 14:27:34,291 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-08-14 14:27:34,291 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) [2024-08-14 14:27:34,435 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-08-14 14:27:34,436 INFO L93 Difference]: Finished difference Result 1469 states and 2307 transitions. [2024-08-14 14:27:34,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-14 14:27:34,437 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 [2024-08-14 14:27:34,437 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-08-14 14:27:34,443 INFO L225 Difference]: With dead ends: 1469 [2024-08-14 14:27:34,444 INFO L226 Difference]: Without dead ends: 1469 [2024-08-14 14:27:34,444 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 [2024-08-14 14:27:34,446 INFO L413 NwaCegarLoop]: 294 mSDtfsCounter, 215 mSDsluCounter, 321 mSDsCounter, 0 mSdLazyCounter, 109 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 216 SdHoareTripleChecker+Valid, 615 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 [2024-08-14 14:27:34,447 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [216 Valid, 615 Invalid, 110 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 109 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-08-14 14:27:34,449 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1469 states. [2024-08-14 14:27:34,478 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1469 to 1469. [2024-08-14 14:27:34,483 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) [2024-08-14 14:27:34,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1469 states to 1469 states and 2307 transitions. [2024-08-14 14:27:34,489 INFO L78 Accepts]: Start accepts. Automaton has 1469 states and 2307 transitions. Word has length 989 [2024-08-14 14:27:34,490 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-08-14 14:27:34,490 INFO L495 AbstractCegarLoop]: Abstraction has 1469 states and 2307 transitions. [2024-08-14 14:27:34,491 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) [2024-08-14 14:27:34,491 INFO L276 IsEmpty]: Start isEmpty. Operand 1469 states and 2307 transitions. [2024-08-14 14:27:34,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 996 [2024-08-14 14:27:34,539 INFO L187 NwaCegarLoop]: Found error trace [2024-08-14 14:27:34,540 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] [2024-08-14 14:27:34,540 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-08-14 14:27:34,540 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-08-14 14:27:34,541 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-14 14:27:34,541 INFO L85 PathProgramCache]: Analyzing trace with hash 1156176659, now seen corresponding path program 1 times [2024-08-14 14:27:34,541 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-14 14:27:34,542 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [417145104] [2024-08-14 14:27:34,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-14 14:27:34,542 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-14 14:27:35,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:27:36,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-08-14 14:27:36,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:27:36,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-08-14 14:27:36,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:27:36,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-08-14 14:27:36,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:27:36,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2024-08-14 14:27:36,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:27:36,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2024-08-14 14:27:36,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:27:36,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2024-08-14 14:27:36,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:27:36,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 270 [2024-08-14 14:27:36,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:27:36,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 313 [2024-08-14 14:27:36,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:27:36,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 328 [2024-08-14 14:27:36,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:27:36,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 414 [2024-08-14 14:27:36,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:27:36,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 457 [2024-08-14 14:27:36,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:27:36,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 472 [2024-08-14 14:27:36,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:27:36,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 558 [2024-08-14 14:27:36,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:27:36,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 601 [2024-08-14 14:27:36,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:27:36,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 616 [2024-08-14 14:27:36,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:27:36,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 702 [2024-08-14 14:27:36,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:27:36,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 745 [2024-08-14 14:27:36,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:27:36,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 760 [2024-08-14 14:27:36,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:27:36,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 846 [2024-08-14 14:27:36,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:27:36,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 889 [2024-08-14 14:27:36,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:27:36,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 904 [2024-08-14 14:27:36,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:27:36,532 INFO L134 CoverageAnalysis]: Checked inductivity of 3034 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 2998 trivial. 0 not checked. [2024-08-14 14:27:36,533 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-14 14:27:36,533 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [417145104] [2024-08-14 14:27:36,533 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [417145104] provided 1 perfect and 0 imperfect interpolant sequences [2024-08-14 14:27:36,533 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-08-14 14:27:36,533 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-08-14 14:27:36,533 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1828518355] [2024-08-14 14:27:36,534 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-08-14 14:27:36,534 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-08-14 14:27:36,534 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-14 14:27:36,535 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-08-14 14:27:36,535 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-08-14 14:27:36,535 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) [2024-08-14 14:27:36,558 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-08-14 14:27:36,558 INFO L93 Difference]: Finished difference Result 1483 states and 2321 transitions. [2024-08-14 14:27:36,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-14 14:27:36,559 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 [2024-08-14 14:27:36,560 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-08-14 14:27:36,565 INFO L225 Difference]: With dead ends: 1483 [2024-08-14 14:27:36,566 INFO L226 Difference]: Without dead ends: 1483 [2024-08-14 14:27:36,566 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 [2024-08-14 14:27:36,567 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 [2024-08-14 14:27:36,567 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] [2024-08-14 14:27:36,568 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1483 states. [2024-08-14 14:27:36,586 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1483 to 1483. [2024-08-14 14:27:36,588 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) [2024-08-14 14:27:36,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1483 states to 1483 states and 2321 transitions. [2024-08-14 14:27:36,594 INFO L78 Accepts]: Start accepts. Automaton has 1483 states and 2321 transitions. Word has length 995 [2024-08-14 14:27:36,595 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-08-14 14:27:36,596 INFO L495 AbstractCegarLoop]: Abstraction has 1483 states and 2321 transitions. [2024-08-14 14:27:36,596 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) [2024-08-14 14:27:36,596 INFO L276 IsEmpty]: Start isEmpty. Operand 1483 states and 2321 transitions. [2024-08-14 14:27:36,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 997 [2024-08-14 14:27:36,605 INFO L187 NwaCegarLoop]: Found error trace [2024-08-14 14:27:36,605 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] [2024-08-14 14:27:36,605 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-08-14 14:27:36,606 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-08-14 14:27:36,606 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-14 14:27:36,606 INFO L85 PathProgramCache]: Analyzing trace with hash 585528938, now seen corresponding path program 1 times [2024-08-14 14:27:36,606 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-14 14:27:36,607 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1163902098] [2024-08-14 14:27:36,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-14 14:27:36,607 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-14 14:27:37,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:27:39,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-08-14 14:27:39,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:27:39,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-08-14 14:27:39,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:27:39,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-08-14 14:27:39,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:27:39,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2024-08-14 14:27:39,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:27:39,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2024-08-14 14:27:39,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:27:39,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2024-08-14 14:27:39,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:27:39,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 270 [2024-08-14 14:27:39,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:27:39,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 313 [2024-08-14 14:27:39,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:27:39,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 328 [2024-08-14 14:27:39,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:27:39,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 414 [2024-08-14 14:27:39,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:27:39,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 457 [2024-08-14 14:27:39,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:27:39,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 472 [2024-08-14 14:27:39,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:27:39,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 558 [2024-08-14 14:27:39,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:27:39,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 601 [2024-08-14 14:27:39,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:27:39,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 616 [2024-08-14 14:27:39,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:27:39,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 702 [2024-08-14 14:27:39,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:27:39,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 745 [2024-08-14 14:27:39,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:27:39,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 760 [2024-08-14 14:27:39,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:27:39,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 846 [2024-08-14 14:27:39,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:27:39,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 889 [2024-08-14 14:27:39,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:27:39,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 904 [2024-08-14 14:27:39,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:27:39,189 INFO L134 CoverageAnalysis]: Checked inductivity of 3034 backedges. 150 proven. 0 refuted. 0 times theorem prover too weak. 2884 trivial. 0 not checked. [2024-08-14 14:27:39,190 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-14 14:27:39,190 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1163902098] [2024-08-14 14:27:39,190 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1163902098] provided 1 perfect and 0 imperfect interpolant sequences [2024-08-14 14:27:39,190 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-08-14 14:27:39,190 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-08-14 14:27:39,191 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1089849793] [2024-08-14 14:27:39,191 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-08-14 14:27:39,192 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-08-14 14:27:39,192 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-14 14:27:39,193 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-08-14 14:27:39,193 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-08-14 14:27:39,193 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) [2024-08-14 14:27:39,250 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-08-14 14:27:39,251 INFO L93 Difference]: Finished difference Result 1483 states and 2314 transitions. [2024-08-14 14:27:39,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-14 14:27:39,251 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 [2024-08-14 14:27:39,252 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-08-14 14:27:39,257 INFO L225 Difference]: With dead ends: 1483 [2024-08-14 14:27:39,257 INFO L226 Difference]: Without dead ends: 1483 [2024-08-14 14:27:39,257 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 [2024-08-14 14:27:39,258 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 [2024-08-14 14:27:39,258 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] [2024-08-14 14:27:39,261 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1483 states. [2024-08-14 14:27:39,287 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1483 to 1483. [2024-08-14 14:27:39,289 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) [2024-08-14 14:27:39,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1483 states to 1483 states and 2314 transitions. [2024-08-14 14:27:39,301 INFO L78 Accepts]: Start accepts. Automaton has 1483 states and 2314 transitions. Word has length 996 [2024-08-14 14:27:39,301 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-08-14 14:27:39,301 INFO L495 AbstractCegarLoop]: Abstraction has 1483 states and 2314 transitions. [2024-08-14 14:27:39,302 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) [2024-08-14 14:27:39,302 INFO L276 IsEmpty]: Start isEmpty. Operand 1483 states and 2314 transitions. [2024-08-14 14:27:39,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1004 [2024-08-14 14:27:39,310 INFO L187 NwaCegarLoop]: Found error trace [2024-08-14 14:27:39,311 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] [2024-08-14 14:27:39,311 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-08-14 14:27:39,311 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-08-14 14:27:39,312 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-14 14:27:39,312 INFO L85 PathProgramCache]: Analyzing trace with hash -568795325, now seen corresponding path program 1 times [2024-08-14 14:27:39,312 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-14 14:27:39,312 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1602918877] [2024-08-14 14:27:39,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-14 14:27:39,312 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-14 14:27:40,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:27:41,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-08-14 14:27:41,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:27:41,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-08-14 14:27:41,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:27:41,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-08-14 14:27:41,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:27:41,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2024-08-14 14:27:41,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:27:41,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2024-08-14 14:27:41,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:27:41,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2024-08-14 14:27:41,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:27:41,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 272 [2024-08-14 14:27:41,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:27:41,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 315 [2024-08-14 14:27:41,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:27:41,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 330 [2024-08-14 14:27:41,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:27:41,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 417 [2024-08-14 14:27:41,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:27:41,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 460 [2024-08-14 14:27:41,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:27:41,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 475 [2024-08-14 14:27:41,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:27:41,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 562 [2024-08-14 14:27:41,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:27:41,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 605 [2024-08-14 14:27:41,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:27:41,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 620 [2024-08-14 14:27:41,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:27:41,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 707 [2024-08-14 14:27:41,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:27:41,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 750 [2024-08-14 14:27:41,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:27:41,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 765 [2024-08-14 14:27:41,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:27:41,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 852 [2024-08-14 14:27:41,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:27:41,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 895 [2024-08-14 14:27:41,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:27:41,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 910 [2024-08-14 14:27:41,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:27:41,172 INFO L134 CoverageAnalysis]: Checked inductivity of 3055 backedges. 646 proven. 0 refuted. 0 times theorem prover too weak. 2409 trivial. 0 not checked. [2024-08-14 14:27:41,172 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-14 14:27:41,172 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1602918877] [2024-08-14 14:27:41,173 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1602918877] provided 1 perfect and 0 imperfect interpolant sequences [2024-08-14 14:27:41,173 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-08-14 14:27:41,173 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-08-14 14:27:41,173 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1727902962] [2024-08-14 14:27:41,173 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-08-14 14:27:41,174 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-08-14 14:27:41,174 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-14 14:27:41,175 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-08-14 14:27:41,175 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-08-14 14:27:41,175 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) [2024-08-14 14:27:41,229 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-08-14 14:27:41,230 INFO L93 Difference]: Finished difference Result 1483 states and 2307 transitions. [2024-08-14 14:27:41,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-14 14:27:41,231 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 [2024-08-14 14:27:41,231 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-08-14 14:27:41,236 INFO L225 Difference]: With dead ends: 1483 [2024-08-14 14:27:41,236 INFO L226 Difference]: Without dead ends: 1483 [2024-08-14 14:27:41,236 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 [2024-08-14 14:27:41,237 INFO L413 NwaCegarLoop]: 334 mSDtfsCounter, 459 mSDsluCounter, 345 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 461 SdHoareTripleChecker+Valid, 679 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 [2024-08-14 14:27:41,237 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [461 Valid, 679 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-08-14 14:27:41,239 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1483 states. [2024-08-14 14:27:41,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1483 to 1483. [2024-08-14 14:27:41,260 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) [2024-08-14 14:27:41,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1483 states to 1483 states and 2307 transitions. [2024-08-14 14:27:41,266 INFO L78 Accepts]: Start accepts. Automaton has 1483 states and 2307 transitions. Word has length 1003 [2024-08-14 14:27:41,266 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-08-14 14:27:41,267 INFO L495 AbstractCegarLoop]: Abstraction has 1483 states and 2307 transitions. [2024-08-14 14:27:41,267 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) [2024-08-14 14:27:41,267 INFO L276 IsEmpty]: Start isEmpty. Operand 1483 states and 2307 transitions. [2024-08-14 14:27:41,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1010 [2024-08-14 14:27:41,277 INFO L187 NwaCegarLoop]: Found error trace [2024-08-14 14:27:41,277 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] [2024-08-14 14:27:41,277 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-08-14 14:27:41,278 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-08-14 14:27:41,278 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-14 14:27:41,278 INFO L85 PathProgramCache]: Analyzing trace with hash 2039468511, now seen corresponding path program 1 times [2024-08-14 14:27:41,278 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-14 14:27:41,279 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [942385019] [2024-08-14 14:27:41,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-14 14:27:41,279 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-14 14:27:42,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:27:42,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-08-14 14:27:42,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:27:42,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-08-14 14:27:42,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:27:42,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-08-14 14:27:42,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:27:42,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2024-08-14 14:27:42,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:27:42,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2024-08-14 14:27:42,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:27:42,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2024-08-14 14:27:42,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:27:42,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 273 [2024-08-14 14:27:42,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:27:42,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 317 [2024-08-14 14:27:42,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:27:42,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 332 [2024-08-14 14:27:42,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:27:42,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 419 [2024-08-14 14:27:42,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:27:42,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 463 [2024-08-14 14:27:42,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:27:42,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 478 [2024-08-14 14:27:42,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:27:42,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 565 [2024-08-14 14:27:42,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:27:42,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 609 [2024-08-14 14:27:42,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:27:42,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 624 [2024-08-14 14:27:42,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:27:42,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 711 [2024-08-14 14:27:42,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:27:42,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 755 [2024-08-14 14:27:42,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:27:42,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 770 [2024-08-14 14:27:42,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:27:42,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 857 [2024-08-14 14:27:42,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:27:42,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 901 [2024-08-14 14:27:42,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:27:42,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 916 [2024-08-14 14:27:42,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:27:42,923 INFO L134 CoverageAnalysis]: Checked inductivity of 3070 backedges. 661 proven. 0 refuted. 0 times theorem prover too weak. 2409 trivial. 0 not checked. [2024-08-14 14:27:42,923 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-14 14:27:42,923 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [942385019] [2024-08-14 14:27:42,923 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [942385019] provided 1 perfect and 0 imperfect interpolant sequences [2024-08-14 14:27:42,923 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-08-14 14:27:42,924 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-08-14 14:27:42,924 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2085669206] [2024-08-14 14:27:42,924 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-08-14 14:27:42,925 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-08-14 14:27:42,925 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-14 14:27:42,926 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-08-14 14:27:42,926 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-08-14 14:27:42,926 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) [2024-08-14 14:27:42,977 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-08-14 14:27:42,978 INFO L93 Difference]: Finished difference Result 1483 states and 2300 transitions. [2024-08-14 14:27:42,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-14 14:27:42,979 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 [2024-08-14 14:27:42,979 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-08-14 14:27:42,984 INFO L225 Difference]: With dead ends: 1483 [2024-08-14 14:27:42,984 INFO L226 Difference]: Without dead ends: 1483 [2024-08-14 14:27:42,985 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 [2024-08-14 14:27:42,985 INFO L413 NwaCegarLoop]: 334 mSDtfsCounter, 451 mSDsluCounter, 345 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 453 SdHoareTripleChecker+Valid, 679 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 [2024-08-14 14:27:42,986 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [453 Valid, 679 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-08-14 14:27:42,987 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1483 states. [2024-08-14 14:27:43,009 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1483 to 1483. [2024-08-14 14:27:43,012 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) [2024-08-14 14:27:43,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1483 states to 1483 states and 2300 transitions. [2024-08-14 14:27:43,016 INFO L78 Accepts]: Start accepts. Automaton has 1483 states and 2300 transitions. Word has length 1009 [2024-08-14 14:27:43,016 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-08-14 14:27:43,017 INFO L495 AbstractCegarLoop]: Abstraction has 1483 states and 2300 transitions. [2024-08-14 14:27:43,017 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) [2024-08-14 14:27:43,017 INFO L276 IsEmpty]: Start isEmpty. Operand 1483 states and 2300 transitions. [2024-08-14 14:27:43,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1016 [2024-08-14 14:27:43,026 INFO L187 NwaCegarLoop]: Found error trace [2024-08-14 14:27:43,026 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] [2024-08-14 14:27:43,027 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-08-14 14:27:43,027 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-08-14 14:27:43,028 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-14 14:27:43,028 INFO L85 PathProgramCache]: Analyzing trace with hash 1021313379, now seen corresponding path program 1 times [2024-08-14 14:27:43,028 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-14 14:27:43,028 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [128245651] [2024-08-14 14:27:43,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-14 14:27:43,028 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-14 14:27:44,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:27:46,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-08-14 14:27:46,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:27:46,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-08-14 14:27:46,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:27:46,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-08-14 14:27:46,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:27:46,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2024-08-14 14:27:46,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:27:46,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2024-08-14 14:27:46,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:27:46,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2024-08-14 14:27:46,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:27:46,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 274 [2024-08-14 14:27:46,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:27:46,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 319 [2024-08-14 14:27:46,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:27:46,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 334 [2024-08-14 14:27:46,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:27:46,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 421 [2024-08-14 14:27:46,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:27:46,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 466 [2024-08-14 14:27:46,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:27:46,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 481 [2024-08-14 14:27:46,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:27:46,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 568 [2024-08-14 14:27:46,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:27:46,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 613 [2024-08-14 14:27:46,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:27:46,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 628 [2024-08-14 14:27:46,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:27:46,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 715 [2024-08-14 14:27:46,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:27:46,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 760 [2024-08-14 14:27:46,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:27:46,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 775 [2024-08-14 14:27:46,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:27:46,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 862 [2024-08-14 14:27:46,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:27:46,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 907 [2024-08-14 14:27:46,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:27:46,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 922 [2024-08-14 14:27:46,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:27:46,426 INFO L134 CoverageAnalysis]: Checked inductivity of 3085 backedges. 156 proven. 0 refuted. 0 times theorem prover too weak. 2929 trivial. 0 not checked. [2024-08-14 14:27:46,426 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-14 14:27:46,427 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [128245651] [2024-08-14 14:27:46,427 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [128245651] provided 1 perfect and 0 imperfect interpolant sequences [2024-08-14 14:27:46,427 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-08-14 14:27:46,427 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-08-14 14:27:46,427 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [356018478] [2024-08-14 14:27:46,427 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-08-14 14:27:46,428 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-08-14 14:27:46,428 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-14 14:27:46,429 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-08-14 14:27:46,429 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-08-14 14:27:46,430 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) [2024-08-14 14:27:46,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-08-14 14:27:46,483 INFO L93 Difference]: Finished difference Result 1483 states and 2293 transitions. [2024-08-14 14:27:46,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-14 14:27:46,484 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 [2024-08-14 14:27:46,484 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-08-14 14:27:46,493 INFO L225 Difference]: With dead ends: 1483 [2024-08-14 14:27:46,494 INFO L226 Difference]: Without dead ends: 1483 [2024-08-14 14:27:46,494 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 [2024-08-14 14:27:46,498 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 [2024-08-14 14:27:46,498 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] [2024-08-14 14:27:46,500 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1483 states. [2024-08-14 14:27:46,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1483 to 1483. [2024-08-14 14:27:46,528 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) [2024-08-14 14:27:46,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1483 states to 1483 states and 2293 transitions. [2024-08-14 14:27:46,533 INFO L78 Accepts]: Start accepts. Automaton has 1483 states and 2293 transitions. Word has length 1015 [2024-08-14 14:27:46,534 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-08-14 14:27:46,534 INFO L495 AbstractCegarLoop]: Abstraction has 1483 states and 2293 transitions. [2024-08-14 14:27:46,534 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) [2024-08-14 14:27:46,534 INFO L276 IsEmpty]: Start isEmpty. Operand 1483 states and 2293 transitions. [2024-08-14 14:27:46,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1016 [2024-08-14 14:27:46,543 INFO L187 NwaCegarLoop]: Found error trace [2024-08-14 14:27:46,543 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] [2024-08-14 14:27:46,543 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-08-14 14:27:46,544 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-08-14 14:27:46,544 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-14 14:27:46,544 INFO L85 PathProgramCache]: Analyzing trace with hash -1847722206, now seen corresponding path program 1 times [2024-08-14 14:27:46,544 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-14 14:27:46,544 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1866712973] [2024-08-14 14:27:46,545 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-14 14:27:46,545 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-14 14:27:48,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:27:49,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-08-14 14:27:49,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:27:49,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-08-14 14:27:49,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:27:49,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-08-14 14:27:49,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:27:49,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2024-08-14 14:27:49,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:27:49,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2024-08-14 14:27:49,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:27:49,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2024-08-14 14:27:49,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:27:49,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 274 [2024-08-14 14:27:49,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:27:49,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 319 [2024-08-14 14:27:49,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:27:49,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 334 [2024-08-14 14:27:49,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:27:49,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 421 [2024-08-14 14:27:49,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:27:49,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 466 [2024-08-14 14:27:49,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:27:49,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 481 [2024-08-14 14:27:49,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:27:49,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 568 [2024-08-14 14:27:49,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:27:49,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 613 [2024-08-14 14:27:49,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:27:49,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 628 [2024-08-14 14:27:49,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:27:49,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 715 [2024-08-14 14:27:49,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:27:49,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 760 [2024-08-14 14:27:49,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:27:49,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 775 [2024-08-14 14:27:49,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:27:49,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 862 [2024-08-14 14:27:49,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:27:49,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 907 [2024-08-14 14:27:49,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:27:49,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 922 [2024-08-14 14:27:49,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:27:49,936 INFO L134 CoverageAnalysis]: Checked inductivity of 3085 backedges. 651 proven. 0 refuted. 0 times theorem prover too weak. 2434 trivial. 0 not checked. [2024-08-14 14:27:49,937 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-14 14:27:49,937 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1866712973] [2024-08-14 14:27:49,937 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1866712973] provided 1 perfect and 0 imperfect interpolant sequences [2024-08-14 14:27:49,937 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-08-14 14:27:49,937 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-08-14 14:27:49,938 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [144720599] [2024-08-14 14:27:49,938 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-08-14 14:27:49,939 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-08-14 14:27:49,939 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-14 14:27:49,940 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-08-14 14:27:49,940 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-08-14 14:27:49,940 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) [2024-08-14 14:27:50,002 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-08-14 14:27:50,003 INFO L93 Difference]: Finished difference Result 1483 states and 2286 transitions. [2024-08-14 14:27:50,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-14 14:27:50,004 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 [2024-08-14 14:27:50,005 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-08-14 14:27:50,013 INFO L225 Difference]: With dead ends: 1483 [2024-08-14 14:27:50,013 INFO L226 Difference]: Without dead ends: 1483 [2024-08-14 14:27:50,014 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 [2024-08-14 14:27:50,015 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 [2024-08-14 14:27:50,015 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] [2024-08-14 14:27:50,017 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1483 states. [2024-08-14 14:27:50,037 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1483 to 1483. [2024-08-14 14:27:50,041 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) [2024-08-14 14:27:50,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1483 states to 1483 states and 2286 transitions. [2024-08-14 14:27:50,046 INFO L78 Accepts]: Start accepts. Automaton has 1483 states and 2286 transitions. Word has length 1015 [2024-08-14 14:27:50,047 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-08-14 14:27:50,047 INFO L495 AbstractCegarLoop]: Abstraction has 1483 states and 2286 transitions. [2024-08-14 14:27:50,047 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) [2024-08-14 14:27:50,048 INFO L276 IsEmpty]: Start isEmpty. Operand 1483 states and 2286 transitions. [2024-08-14 14:27:50,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1016 [2024-08-14 14:27:50,057 INFO L187 NwaCegarLoop]: Found error trace [2024-08-14 14:27:50,057 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] [2024-08-14 14:27:50,058 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-08-14 14:27:50,058 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-08-14 14:27:50,058 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-14 14:27:50,058 INFO L85 PathProgramCache]: Analyzing trace with hash -1176221694, now seen corresponding path program 1 times [2024-08-14 14:27:50,059 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-14 14:27:50,059 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1008703059] [2024-08-14 14:27:50,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-14 14:27:50,059 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-14 14:27:51,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:27:52,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-08-14 14:27:52,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:27:52,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-08-14 14:27:52,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:27:52,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-08-14 14:27:52,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:27:52,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2024-08-14 14:27:52,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:27:52,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2024-08-14 14:27:52,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:27:52,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2024-08-14 14:27:52,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:27:52,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 274 [2024-08-14 14:27:52,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:27:52,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 319 [2024-08-14 14:27:52,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:27:52,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 334 [2024-08-14 14:27:52,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:27:52,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 421 [2024-08-14 14:27:52,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:27:52,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 466 [2024-08-14 14:27:52,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:27:52,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 481 [2024-08-14 14:27:52,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:27:52,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 568 [2024-08-14 14:27:52,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:27:52,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 613 [2024-08-14 14:27:52,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:27:52,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 628 [2024-08-14 14:27:52,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:27:52,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 715 [2024-08-14 14:27:52,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:27:52,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 760 [2024-08-14 14:27:52,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:27:52,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 775 [2024-08-14 14:27:52,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:27:52,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 862 [2024-08-14 14:27:52,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:27:52,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 907 [2024-08-14 14:27:52,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:27:52,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 922 [2024-08-14 14:27:52,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:27:52,545 INFO L134 CoverageAnalysis]: Checked inductivity of 3085 backedges. 666 proven. 0 refuted. 0 times theorem prover too weak. 2419 trivial. 0 not checked. [2024-08-14 14:27:52,545 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-14 14:27:52,545 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1008703059] [2024-08-14 14:27:52,546 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1008703059] provided 1 perfect and 0 imperfect interpolant sequences [2024-08-14 14:27:52,546 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-08-14 14:27:52,546 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-08-14 14:27:52,546 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1792664714] [2024-08-14 14:27:52,546 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-08-14 14:27:52,547 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-08-14 14:27:52,547 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-14 14:27:52,549 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-08-14 14:27:52,549 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-08-14 14:27:52,549 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) [2024-08-14 14:27:52,607 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-08-14 14:27:52,607 INFO L93 Difference]: Finished difference Result 1483 states and 2279 transitions. [2024-08-14 14:27:52,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-14 14:27:52,608 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 [2024-08-14 14:27:52,609 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-08-14 14:27:52,612 INFO L225 Difference]: With dead ends: 1483 [2024-08-14 14:27:52,613 INFO L226 Difference]: Without dead ends: 1483 [2024-08-14 14:27:52,613 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-08-14 14:27:52,614 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 [2024-08-14 14:27:52,614 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] [2024-08-14 14:27:52,616 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1483 states. [2024-08-14 14:27:52,639 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1483 to 1483. [2024-08-14 14:27:52,645 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) [2024-08-14 14:27:52,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1483 states to 1483 states and 2279 transitions. [2024-08-14 14:27:52,649 INFO L78 Accepts]: Start accepts. Automaton has 1483 states and 2279 transitions. Word has length 1015 [2024-08-14 14:27:52,654 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-08-14 14:27:52,654 INFO L495 AbstractCegarLoop]: Abstraction has 1483 states and 2279 transitions. [2024-08-14 14:27:52,654 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) [2024-08-14 14:27:52,654 INFO L276 IsEmpty]: Start isEmpty. Operand 1483 states and 2279 transitions. [2024-08-14 14:27:52,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1016 [2024-08-14 14:27:52,670 INFO L187 NwaCegarLoop]: Found error trace [2024-08-14 14:27:52,670 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] [2024-08-14 14:27:52,671 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-08-14 14:27:52,671 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-08-14 14:27:52,671 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-14 14:27:52,671 INFO L85 PathProgramCache]: Analyzing trace with hash 2051910434, now seen corresponding path program 1 times [2024-08-14 14:27:52,671 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-14 14:27:52,672 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [65174126] [2024-08-14 14:27:52,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-14 14:27:52,672 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-14 14:27:59,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:28:03,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-08-14 14:28:03,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:28:03,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-08-14 14:28:03,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:28:03,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-08-14 14:28:03,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:28:03,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2024-08-14 14:28:03,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:28:03,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2024-08-14 14:28:03,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:28:03,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2024-08-14 14:28:03,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:28:03,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 274 [2024-08-14 14:28:03,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:28:03,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 319 [2024-08-14 14:28:03,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:28:03,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 334 [2024-08-14 14:28:03,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:28:03,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 421 [2024-08-14 14:28:03,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:28:03,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 466 [2024-08-14 14:28:03,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:28:03,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 481 [2024-08-14 14:28:03,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:28:03,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 568 [2024-08-14 14:28:03,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:28:03,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 613 [2024-08-14 14:28:03,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:28:03,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 628 [2024-08-14 14:28:03,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:28:03,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 715 [2024-08-14 14:28:03,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:28:03,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 760 [2024-08-14 14:28:03,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:28:03,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 775 [2024-08-14 14:28:03,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:28:03,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 862 [2024-08-14 14:28:03,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:28:03,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 907 [2024-08-14 14:28:03,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:28:03,883 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 922 [2024-08-14 14:28:03,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:28:03,892 INFO L134 CoverageAnalysis]: Checked inductivity of 3085 backedges. 498 proven. 6 refuted. 0 times theorem prover too weak. 2581 trivial. 0 not checked. [2024-08-14 14:28:03,892 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-14 14:28:03,892 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [65174126] [2024-08-14 14:28:03,892 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [65174126] provided 0 perfect and 1 imperfect interpolant sequences [2024-08-14 14:28:03,892 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1297319872] [2024-08-14 14:28:03,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-14 14:28:03,893 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-14 14:28:03,893 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-08-14 14:28:03,895 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) [2024-08-14 14:28:03,896 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-08-14 14:28:07,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:28:07,583 INFO L262 TraceCheckSpWp]: Trace formula consists of 5303 conjuncts, 11 conjunts are in the unsatisfiable core [2024-08-14 14:28:07,597 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-08-14 14:28:07,671 INFO L134 CoverageAnalysis]: Checked inductivity of 3085 backedges. 1789 proven. 0 refuted. 0 times theorem prover too weak. 1296 trivial. 0 not checked. [2024-08-14 14:28:07,671 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-08-14 14:28:07,671 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1297319872] provided 1 perfect and 0 imperfect interpolant sequences [2024-08-14 14:28:07,671 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-08-14 14:28:07,672 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [8] total 12 [2024-08-14 14:28:07,672 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [342509859] [2024-08-14 14:28:07,672 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-08-14 14:28:07,673 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-08-14 14:28:07,673 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-14 14:28:07,674 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-08-14 14:28:07,674 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2024-08-14 14:28:07,674 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) [2024-08-14 14:28:07,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-08-14 14:28:07,711 INFO L93 Difference]: Finished difference Result 1499 states and 2295 transitions. [2024-08-14 14:28:07,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-08-14 14:28:07,712 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 [2024-08-14 14:28:07,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-08-14 14:28:07,715 INFO L225 Difference]: With dead ends: 1499 [2024-08-14 14:28:07,715 INFO L226 Difference]: Without dead ends: 1483 [2024-08-14 14:28:07,716 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 [2024-08-14 14:28:07,716 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 [2024-08-14 14:28:07,716 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] [2024-08-14 14:28:07,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1483 states. [2024-08-14 14:28:07,735 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1483 to 1483. [2024-08-14 14:28:07,737 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) [2024-08-14 14:28:07,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1483 states to 1483 states and 2271 transitions. [2024-08-14 14:28:07,741 INFO L78 Accepts]: Start accepts. Automaton has 1483 states and 2271 transitions. Word has length 1015 [2024-08-14 14:28:07,741 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-08-14 14:28:07,741 INFO L495 AbstractCegarLoop]: Abstraction has 1483 states and 2271 transitions. [2024-08-14 14:28:07,741 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) [2024-08-14 14:28:07,742 INFO L276 IsEmpty]: Start isEmpty. Operand 1483 states and 2271 transitions. [2024-08-14 14:28:07,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1023 [2024-08-14 14:28:07,750 INFO L187 NwaCegarLoop]: Found error trace [2024-08-14 14:28:07,751 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] [2024-08-14 14:28:07,796 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-08-14 14:28:07,952 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 [2024-08-14 14:28:07,953 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-08-14 14:28:07,953 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-14 14:28:07,953 INFO L85 PathProgramCache]: Analyzing trace with hash 981921532, now seen corresponding path program 1 times [2024-08-14 14:28:07,954 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-14 14:28:07,954 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1449307832] [2024-08-14 14:28:07,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-14 14:28:07,954 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-14 14:28:13,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:28:16,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-08-14 14:28:16,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:28:16,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-08-14 14:28:16,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:28:16,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-08-14 14:28:16,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:28:16,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-08-14 14:28:16,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:28:16,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2024-08-14 14:28:16,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:28:16,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2024-08-14 14:28:16,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:28:16,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 276 [2024-08-14 14:28:16,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:28:16,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 322 [2024-08-14 14:28:16,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:28:16,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 337 [2024-08-14 14:28:16,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:28:16,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 424 [2024-08-14 14:28:16,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:28:16,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 470 [2024-08-14 14:28:16,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:28:16,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 485 [2024-08-14 14:28:16,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:28:16,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 572 [2024-08-14 14:28:16,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:28:16,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 618 [2024-08-14 14:28:16,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:28:16,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 633 [2024-08-14 14:28:16,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:28:16,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 720 [2024-08-14 14:28:16,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:28:16,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 766 [2024-08-14 14:28:16,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:28:16,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 781 [2024-08-14 14:28:16,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:28:16,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 868 [2024-08-14 14:28:16,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:28:16,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 914 [2024-08-14 14:28:16,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:28:16,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 929 [2024-08-14 14:28:16,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:28:16,982 INFO L134 CoverageAnalysis]: Checked inductivity of 3106 backedges. 474 proven. 6 refuted. 0 times theorem prover too weak. 2626 trivial. 0 not checked. [2024-08-14 14:28:16,982 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-14 14:28:16,982 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1449307832] [2024-08-14 14:28:16,983 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1449307832] provided 0 perfect and 1 imperfect interpolant sequences [2024-08-14 14:28:16,983 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [187970769] [2024-08-14 14:28:16,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-14 14:28:16,983 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-14 14:28:16,983 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-08-14 14:28:16,985 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) [2024-08-14 14:28:16,987 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-08-14 14:28:20,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:28:20,424 INFO L262 TraceCheckSpWp]: Trace formula consists of 5324 conjuncts, 86 conjunts are in the unsatisfiable core [2024-08-14 14:28:20,442 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-08-14 14:28:21,109 INFO L134 CoverageAnalysis]: Checked inductivity of 3106 backedges. 678 proven. 0 refuted. 0 times theorem prover too weak. 2428 trivial. 0 not checked. [2024-08-14 14:28:21,110 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-08-14 14:28:21,110 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [187970769] provided 1 perfect and 0 imperfect interpolant sequences [2024-08-14 14:28:21,110 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-08-14 14:28:21,110 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [8] total 13 [2024-08-14 14:28:21,111 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [340416333] [2024-08-14 14:28:21,111 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-08-14 14:28:21,112 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-08-14 14:28:21,112 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-14 14:28:21,112 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-08-14 14:28:21,112 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=105, Unknown=0, NotChecked=0, Total=156 [2024-08-14 14:28:21,113 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) [2024-08-14 14:28:21,360 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-08-14 14:28:21,364 INFO L93 Difference]: Finished difference Result 2141 states and 3349 transitions. [2024-08-14 14:28:21,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-08-14 14:28:21,365 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 [2024-08-14 14:28:21,365 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-08-14 14:28:21,369 INFO L225 Difference]: With dead ends: 2141 [2024-08-14 14:28:21,369 INFO L226 Difference]: Without dead ends: 2141 [2024-08-14 14:28:21,370 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 [2024-08-14 14:28:21,370 INFO L413 NwaCegarLoop]: 286 mSDtfsCounter, 461 mSDsluCounter, 1060 mSDsCounter, 0 mSdLazyCounter, 305 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 462 SdHoareTripleChecker+Valid, 1346 SdHoareTripleChecker+Invalid, 307 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 305 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-08-14 14:28:21,370 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [462 Valid, 1346 Invalid, 307 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 305 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-08-14 14:28:21,372 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2141 states. [2024-08-14 14:28:21,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2141 to 2134. [2024-08-14 14:28:21,400 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) [2024-08-14 14:28:21,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2134 states to 2134 states and 3342 transitions. [2024-08-14 14:28:21,404 INFO L78 Accepts]: Start accepts. Automaton has 2134 states and 3342 transitions. Word has length 1022 [2024-08-14 14:28:21,405 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-08-14 14:28:21,405 INFO L495 AbstractCegarLoop]: Abstraction has 2134 states and 3342 transitions. [2024-08-14 14:28:21,405 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) [2024-08-14 14:28:21,405 INFO L276 IsEmpty]: Start isEmpty. Operand 2134 states and 3342 transitions. [2024-08-14 14:28:21,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1030 [2024-08-14 14:28:21,416 INFO L187 NwaCegarLoop]: Found error trace [2024-08-14 14:28:21,416 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] [2024-08-14 14:28:21,460 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-08-14 14:28:21,617 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 [2024-08-14 14:28:21,618 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-08-14 14:28:21,618 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-14 14:28:21,618 INFO L85 PathProgramCache]: Analyzing trace with hash 1676344571, now seen corresponding path program 1 times [2024-08-14 14:28:21,618 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-14 14:28:21,619 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2077240748] [2024-08-14 14:28:21,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-14 14:28:21,619 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-14 14:28:29,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:28:34,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-08-14 14:28:34,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:28:34,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-08-14 14:28:34,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:28:34,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-08-14 14:28:34,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:28:34,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2024-08-14 14:28:34,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:28:34,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2024-08-14 14:28:34,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:28:34,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2024-08-14 14:28:34,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:28:34,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 278 [2024-08-14 14:28:34,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:28:34,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 324 [2024-08-14 14:28:34,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:28:34,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 339 [2024-08-14 14:28:34,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:28:34,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 427 [2024-08-14 14:28:34,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:28:34,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 473 [2024-08-14 14:28:34,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:28:34,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 488 [2024-08-14 14:28:34,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:28:34,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 576 [2024-08-14 14:28:34,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:28:34,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 622 [2024-08-14 14:28:34,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:28:34,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 637 [2024-08-14 14:28:34,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:28:34,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 725 [2024-08-14 14:28:34,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:28:34,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 771 [2024-08-14 14:28:34,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:28:34,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 786 [2024-08-14 14:28:34,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:28:34,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 874 [2024-08-14 14:28:34,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:28:34,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 920 [2024-08-14 14:28:34,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:28:34,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 935 [2024-08-14 14:28:34,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:28:34,603 INFO L134 CoverageAnalysis]: Checked inductivity of 3127 backedges. 1214 proven. 1 refuted. 0 times theorem prover too weak. 1912 trivial. 0 not checked. [2024-08-14 14:28:34,603 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-14 14:28:34,605 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2077240748] [2024-08-14 14:28:34,606 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2077240748] provided 0 perfect and 1 imperfect interpolant sequences [2024-08-14 14:28:34,606 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [875150325] [2024-08-14 14:28:34,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-14 14:28:34,606 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-14 14:28:34,606 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-08-14 14:28:34,608 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) [2024-08-14 14:28:34,609 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-08-14 14:28:39,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:28:39,574 INFO L262 TraceCheckSpWp]: Trace formula consists of 5345 conjuncts, 328 conjunts are in the unsatisfiable core [2024-08-14 14:28:39,606 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-08-14 14:28:44,783 INFO L134 CoverageAnalysis]: Checked inductivity of 3127 backedges. 1966 proven. 176 refuted. 0 times theorem prover too weak. 985 trivial. 0 not checked. [2024-08-14 14:28:44,784 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-08-14 14:28:50,547 INFO L134 CoverageAnalysis]: Checked inductivity of 3127 backedges. 1700 proven. 16 refuted. 0 times theorem prover too weak. 1411 trivial. 0 not checked. [2024-08-14 14:28:50,548 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [875150325] provided 0 perfect and 2 imperfect interpolant sequences [2024-08-14 14:28:50,548 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-08-14 14:28:50,548 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 31, 23] total 57 [2024-08-14 14:28:50,549 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [316456162] [2024-08-14 14:28:50,549 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-08-14 14:28:50,551 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 57 states [2024-08-14 14:28:50,551 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-14 14:28:50,555 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 57 interpolants. [2024-08-14 14:28:50,556 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=468, Invalid=2724, Unknown=0, NotChecked=0, Total=3192 [2024-08-14 14:28:50,558 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) [2024-08-14 14:28:59,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-08-14 14:28:59,449 INFO L93 Difference]: Finished difference Result 10462 states and 15964 transitions. [2024-08-14 14:28:59,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 146 states. [2024-08-14 14:28:59,450 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 [2024-08-14 14:28:59,450 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-08-14 14:28:59,469 INFO L225 Difference]: With dead ends: 10462 [2024-08-14 14:28:59,470 INFO L226 Difference]: Without dead ends: 10462 [2024-08-14 14:28:59,480 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2288 GetRequests, 2114 SyntacticMatches, 0 SemanticMatches, 174 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9770 ImplicationChecksByTransitivity, 5.9s TimeCoverageRelationStatistics Valid=2739, Invalid=28061, Unknown=0, NotChecked=0, Total=30800 [2024-08-14 14:28:59,481 INFO L413 NwaCegarLoop]: 516 mSDtfsCounter, 2821 mSDsluCounter, 16005 mSDsCounter, 0 mSdLazyCounter, 6805 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2822 SdHoareTripleChecker+Valid, 16521 SdHoareTripleChecker+Invalid, 6852 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 6805 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2024-08-14 14:28:59,481 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2822 Valid, 16521 Invalid, 6852 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [47 Valid, 6805 Invalid, 0 Unknown, 0 Unchecked, 4.2s Time] [2024-08-14 14:28:59,491 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10462 states. [2024-08-14 14:28:59,615 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10462 to 4165. [2024-08-14 14:28:59,621 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) [2024-08-14 14:28:59,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4165 states to 4165 states and 6538 transitions. [2024-08-14 14:28:59,633 INFO L78 Accepts]: Start accepts. Automaton has 4165 states and 6538 transitions. Word has length 1029 [2024-08-14 14:28:59,633 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-08-14 14:28:59,633 INFO L495 AbstractCegarLoop]: Abstraction has 4165 states and 6538 transitions. [2024-08-14 14:28:59,634 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) [2024-08-14 14:28:59,634 INFO L276 IsEmpty]: Start isEmpty. Operand 4165 states and 6538 transitions. [2024-08-14 14:28:59,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1041 [2024-08-14 14:28:59,648 INFO L187 NwaCegarLoop]: Found error trace [2024-08-14 14:28:59,648 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] [2024-08-14 14:28:59,697 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-08-14 14:28:59,849 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 [2024-08-14 14:28:59,849 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-08-14 14:28:59,849 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-14 14:28:59,850 INFO L85 PathProgramCache]: Analyzing trace with hash -573264572, now seen corresponding path program 1 times [2024-08-14 14:28:59,850 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-14 14:28:59,850 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [264392471] [2024-08-14 14:28:59,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-14 14:28:59,850 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-14 14:29:00,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:29:02,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-08-14 14:29:02,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:29:02,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-08-14 14:29:02,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:29:02,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-08-14 14:29:02,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:29:02,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2024-08-14 14:29:02,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:29:02,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2024-08-14 14:29:02,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:29:02,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2024-08-14 14:29:02,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:29:02,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 280 [2024-08-14 14:29:02,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:29:02,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 326 [2024-08-14 14:29:02,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:29:02,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 342 [2024-08-14 14:29:02,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:29:02,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 431 [2024-08-14 14:29:02,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:29:02,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 477 [2024-08-14 14:29:02,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:29:02,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 493 [2024-08-14 14:29:02,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:29:02,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 582 [2024-08-14 14:29:02,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:29:02,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 628 [2024-08-14 14:29:02,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:29:02,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 644 [2024-08-14 14:29:02,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:29:02,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 733 [2024-08-14 14:29:02,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:29:02,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 779 [2024-08-14 14:29:02,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:29:02,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 795 [2024-08-14 14:29:02,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:29:02,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 884 [2024-08-14 14:29:02,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:29:02,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 930 [2024-08-14 14:29:02,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:29:02,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 946 [2024-08-14 14:29:02,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:29:02,160 INFO L134 CoverageAnalysis]: Checked inductivity of 3151 backedges. 222 proven. 0 refuted. 0 times theorem prover too weak. 2929 trivial. 0 not checked. [2024-08-14 14:29:02,161 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-14 14:29:02,161 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [264392471] [2024-08-14 14:29:02,161 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [264392471] provided 1 perfect and 0 imperfect interpolant sequences [2024-08-14 14:29:02,161 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-08-14 14:29:02,161 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-08-14 14:29:02,161 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1064611805] [2024-08-14 14:29:02,162 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-08-14 14:29:02,163 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-08-14 14:29:02,163 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-14 14:29:02,164 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-08-14 14:29:02,164 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-08-14 14:29:02,164 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) [2024-08-14 14:29:02,237 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-08-14 14:29:02,238 INFO L93 Difference]: Finished difference Result 4191 states and 6551 transitions. [2024-08-14 14:29:02,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-08-14 14:29:02,238 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 [2024-08-14 14:29:02,239 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-08-14 14:29:02,246 INFO L225 Difference]: With dead ends: 4191 [2024-08-14 14:29:02,246 INFO L226 Difference]: Without dead ends: 4191 [2024-08-14 14:29:02,246 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 [2024-08-14 14:29:02,247 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 [2024-08-14 14:29:02,247 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] [2024-08-14 14:29:02,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4191 states. [2024-08-14 14:29:02,289 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4191 to 4191. [2024-08-14 14:29:02,294 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) [2024-08-14 14:29:02,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4191 states to 4191 states and 6551 transitions. [2024-08-14 14:29:02,304 INFO L78 Accepts]: Start accepts. Automaton has 4191 states and 6551 transitions. Word has length 1040 [2024-08-14 14:29:02,304 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-08-14 14:29:02,304 INFO L495 AbstractCegarLoop]: Abstraction has 4191 states and 6551 transitions. [2024-08-14 14:29:02,305 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) [2024-08-14 14:29:02,305 INFO L276 IsEmpty]: Start isEmpty. Operand 4191 states and 6551 transitions. [2024-08-14 14:29:02,318 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1042 [2024-08-14 14:29:02,318 INFO L187 NwaCegarLoop]: Found error trace [2024-08-14 14:29:02,319 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] [2024-08-14 14:29:02,319 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-08-14 14:29:02,319 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-08-14 14:29:02,320 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-14 14:29:02,320 INFO L85 PathProgramCache]: Analyzing trace with hash 23807034, now seen corresponding path program 1 times [2024-08-14 14:29:02,320 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-14 14:29:02,320 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [384083465] [2024-08-14 14:29:02,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-14 14:29:02,321 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-14 14:29:02,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:29:04,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-08-14 14:29:04,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:29:04,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-08-14 14:29:04,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:29:04,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-08-14 14:29:04,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:29:04,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2024-08-14 14:29:04,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:29:04,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2024-08-14 14:29:04,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:29:04,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2024-08-14 14:29:04,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:29:04,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 281 [2024-08-14 14:29:04,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:29:04,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 327 [2024-08-14 14:29:04,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:29:04,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 343 [2024-08-14 14:29:04,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:29:04,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 432 [2024-08-14 14:29:04,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:29:04,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 478 [2024-08-14 14:29:04,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:29:04,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 494 [2024-08-14 14:29:04,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:29:04,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 583 [2024-08-14 14:29:04,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:29:04,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 629 [2024-08-14 14:29:04,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:29:04,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 645 [2024-08-14 14:29:04,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:29:04,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 734 [2024-08-14 14:29:04,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:29:04,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 780 [2024-08-14 14:29:04,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:29:04,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 796 [2024-08-14 14:29:04,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:29:04,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 885 [2024-08-14 14:29:04,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:29:04,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 931 [2024-08-14 14:29:04,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:29:04,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 947 [2024-08-14 14:29:04,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:29:04,082 INFO L134 CoverageAnalysis]: Checked inductivity of 3163 backedges. 642 proven. 0 refuted. 0 times theorem prover too weak. 2521 trivial. 0 not checked. [2024-08-14 14:29:04,083 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-14 14:29:04,083 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [384083465] [2024-08-14 14:29:04,083 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [384083465] provided 1 perfect and 0 imperfect interpolant sequences [2024-08-14 14:29:04,083 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-08-14 14:29:04,083 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-08-14 14:29:04,083 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [22833596] [2024-08-14 14:29:04,083 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-08-14 14:29:04,084 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-08-14 14:29:04,084 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-14 14:29:04,085 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-08-14 14:29:04,085 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-08-14 14:29:04,085 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) [2024-08-14 14:29:04,234 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-08-14 14:29:04,235 INFO L93 Difference]: Finished difference Result 4212 states and 6573 transitions. [2024-08-14 14:29:04,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-08-14 14:29:04,235 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 [2024-08-14 14:29:04,236 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-08-14 14:29:04,242 INFO L225 Difference]: With dead ends: 4212 [2024-08-14 14:29:04,243 INFO L226 Difference]: Without dead ends: 4212 [2024-08-14 14:29:04,243 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 [2024-08-14 14:29:04,243 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 [2024-08-14 14:29:04,244 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] [2024-08-14 14:29:04,247 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4212 states. [2024-08-14 14:29:04,283 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4212 to 4205. [2024-08-14 14:29:04,287 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) [2024-08-14 14:29:04,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4205 states to 4205 states and 6559 transitions. [2024-08-14 14:29:04,296 INFO L78 Accepts]: Start accepts. Automaton has 4205 states and 6559 transitions. Word has length 1041 [2024-08-14 14:29:04,296 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-08-14 14:29:04,296 INFO L495 AbstractCegarLoop]: Abstraction has 4205 states and 6559 transitions. [2024-08-14 14:29:04,297 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) [2024-08-14 14:29:04,297 INFO L276 IsEmpty]: Start isEmpty. Operand 4205 states and 6559 transitions. [2024-08-14 14:29:04,315 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1042 [2024-08-14 14:29:04,315 INFO L187 NwaCegarLoop]: Found error trace [2024-08-14 14:29:04,315 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] [2024-08-14 14:29:04,316 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-08-14 14:29:04,316 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-08-14 14:29:04,316 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-14 14:29:04,316 INFO L85 PathProgramCache]: Analyzing trace with hash -1529484390, now seen corresponding path program 1 times [2024-08-14 14:29:04,317 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-14 14:29:04,317 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [235819704] [2024-08-14 14:29:04,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-14 14:29:04,317 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-14 14:29:04,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:29:05,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-08-14 14:29:05,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:29:05,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-08-14 14:29:05,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:29:05,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-08-14 14:29:05,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:29:05,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2024-08-14 14:29:05,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:29:05,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2024-08-14 14:29:05,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:29:05,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2024-08-14 14:29:05,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:29:05,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 281 [2024-08-14 14:29:05,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:29:05,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 327 [2024-08-14 14:29:05,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:29:05,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 343 [2024-08-14 14:29:05,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:29:05,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 432 [2024-08-14 14:29:05,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:29:05,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 478 [2024-08-14 14:29:05,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:29:05,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 494 [2024-08-14 14:29:05,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:29:05,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 583 [2024-08-14 14:29:05,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:29:05,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 629 [2024-08-14 14:29:06,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:29:06,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 645 [2024-08-14 14:29:06,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:29:06,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 734 [2024-08-14 14:29:06,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:29:06,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 780 [2024-08-14 14:29:06,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:29:06,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 796 [2024-08-14 14:29:06,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:29:06,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 885 [2024-08-14 14:29:06,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:29:06,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 931 [2024-08-14 14:29:06,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:29:06,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 947 [2024-08-14 14:29:06,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:29:06,009 INFO L134 CoverageAnalysis]: Checked inductivity of 3163 backedges. 885 proven. 0 refuted. 0 times theorem prover too weak. 2278 trivial. 0 not checked. [2024-08-14 14:29:06,009 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-14 14:29:06,009 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [235819704] [2024-08-14 14:29:06,009 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [235819704] provided 1 perfect and 0 imperfect interpolant sequences [2024-08-14 14:29:06,009 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-08-14 14:29:06,009 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-08-14 14:29:06,010 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [967889580] [2024-08-14 14:29:06,010 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-08-14 14:29:06,011 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-08-14 14:29:06,011 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-14 14:29:06,011 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-08-14 14:29:06,012 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-08-14 14:29:06,012 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) [2024-08-14 14:29:06,083 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-08-14 14:29:06,083 INFO L93 Difference]: Finished difference Result 8007 states and 12497 transitions. [2024-08-14 14:29:06,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-08-14 14:29:06,083 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 [2024-08-14 14:29:06,084 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-08-14 14:29:06,099 INFO L225 Difference]: With dead ends: 8007 [2024-08-14 14:29:06,099 INFO L226 Difference]: Without dead ends: 8007 [2024-08-14 14:29:06,100 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 [2024-08-14 14:29:06,100 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 [2024-08-14 14:29:06,101 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] [2024-08-14 14:29:06,108 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8007 states. [2024-08-14 14:29:06,168 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8007 to 4582. [2024-08-14 14:29:06,173 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) [2024-08-14 14:29:06,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4582 states to 4582 states and 7052 transitions. [2024-08-14 14:29:06,183 INFO L78 Accepts]: Start accepts. Automaton has 4582 states and 7052 transitions. Word has length 1041 [2024-08-14 14:29:06,183 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-08-14 14:29:06,183 INFO L495 AbstractCegarLoop]: Abstraction has 4582 states and 7052 transitions. [2024-08-14 14:29:06,183 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) [2024-08-14 14:29:06,184 INFO L276 IsEmpty]: Start isEmpty. Operand 4582 states and 7052 transitions. [2024-08-14 14:29:06,196 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1042 [2024-08-14 14:29:06,197 INFO L187 NwaCegarLoop]: Found error trace [2024-08-14 14:29:06,197 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] [2024-08-14 14:29:06,197 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-08-14 14:29:06,197 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-08-14 14:29:06,198 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-14 14:29:06,198 INFO L85 PathProgramCache]: Analyzing trace with hash 2090106362, now seen corresponding path program 1 times [2024-08-14 14:29:06,198 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-14 14:29:06,198 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1323319270] [2024-08-14 14:29:06,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-14 14:29:06,199 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-14 14:29:14,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:29:16,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-08-14 14:29:16,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:29:16,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-08-14 14:29:16,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:29:16,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-08-14 14:29:16,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:29:16,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2024-08-14 14:29:16,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:29:16,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2024-08-14 14:29:16,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:29:16,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2024-08-14 14:29:16,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:29:16,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 281 [2024-08-14 14:29:16,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:29:16,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 327 [2024-08-14 14:29:16,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:29:16,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 343 [2024-08-14 14:29:16,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:29:16,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 432 [2024-08-14 14:29:16,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:29:16,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 478 [2024-08-14 14:29:16,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:29:16,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 494 [2024-08-14 14:29:16,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:29:16,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 583 [2024-08-14 14:29:16,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:29:16,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 629 [2024-08-14 14:29:16,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:29:16,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 645 [2024-08-14 14:29:16,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:29:16,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 734 [2024-08-14 14:29:16,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:29:16,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 780 [2024-08-14 14:29:16,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:29:16,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 796 [2024-08-14 14:29:16,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:29:16,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 885 [2024-08-14 14:29:16,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:29:16,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 931 [2024-08-14 14:29:16,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:29:16,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 947 [2024-08-14 14:29:16,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:29:16,592 INFO L134 CoverageAnalysis]: Checked inductivity of 3163 backedges. 132 proven. 0 refuted. 0 times theorem prover too weak. 3031 trivial. 0 not checked. [2024-08-14 14:29:16,592 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-14 14:29:16,592 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1323319270] [2024-08-14 14:29:16,595 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1323319270] provided 1 perfect and 0 imperfect interpolant sequences [2024-08-14 14:29:16,595 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-08-14 14:29:16,595 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-08-14 14:29:16,595 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1291968145] [2024-08-14 14:29:16,595 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-08-14 14:29:16,596 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-08-14 14:29:16,596 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-14 14:29:16,597 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-08-14 14:29:16,597 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-08-14 14:29:16,597 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) [2024-08-14 14:29:16,836 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-08-14 14:29:16,836 INFO L93 Difference]: Finished difference Result 4672 states and 7172 transitions. [2024-08-14 14:29:16,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-08-14 14:29:16,836 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 [2024-08-14 14:29:16,837 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-08-14 14:29:16,845 INFO L225 Difference]: With dead ends: 4672 [2024-08-14 14:29:16,845 INFO L226 Difference]: Without dead ends: 4672 [2024-08-14 14:29:16,845 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 [2024-08-14 14:29:16,846 INFO L413 NwaCegarLoop]: 284 mSDtfsCounter, 316 mSDsluCounter, 1393 mSDsCounter, 0 mSdLazyCounter, 346 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 318 SdHoareTripleChecker+Valid, 1677 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 [2024-08-14 14:29:16,846 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [318 Valid, 1677 Invalid, 349 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 346 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-08-14 14:29:16,850 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4672 states. [2024-08-14 14:29:16,892 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4672 to 4643. [2024-08-14 14:29:16,897 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) [2024-08-14 14:29:16,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4643 states to 4643 states and 7128 transitions. [2024-08-14 14:29:16,905 INFO L78 Accepts]: Start accepts. Automaton has 4643 states and 7128 transitions. Word has length 1041 [2024-08-14 14:29:16,906 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-08-14 14:29:16,906 INFO L495 AbstractCegarLoop]: Abstraction has 4643 states and 7128 transitions. [2024-08-14 14:29:16,906 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) [2024-08-14 14:29:16,906 INFO L276 IsEmpty]: Start isEmpty. Operand 4643 states and 7128 transitions. [2024-08-14 14:29:16,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1043 [2024-08-14 14:29:16,919 INFO L187 NwaCegarLoop]: Found error trace [2024-08-14 14:29:16,920 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] [2024-08-14 14:29:16,920 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-08-14 14:29:16,920 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-08-14 14:29:16,920 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-14 14:29:16,921 INFO L85 PathProgramCache]: Analyzing trace with hash 399223468, now seen corresponding path program 1 times [2024-08-14 14:29:16,921 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-14 14:29:16,921 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1995410770] [2024-08-14 14:29:16,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-14 14:29:16,921 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-14 14:29:24,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:29:28,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-08-14 14:29:28,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:29:28,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-08-14 14:29:28,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:29:28,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-08-14 14:29:28,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:29:28,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2024-08-14 14:29:28,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:29:28,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2024-08-14 14:29:28,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:29:28,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2024-08-14 14:29:28,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:29:28,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2024-08-14 14:29:28,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:29:28,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 328 [2024-08-14 14:29:28,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:29:28,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2024-08-14 14:29:28,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:29:28,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 433 [2024-08-14 14:29:28,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:29:28,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 479 [2024-08-14 14:29:28,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:29:28,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 495 [2024-08-14 14:29:28,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:29:28,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 584 [2024-08-14 14:29:28,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:29:28,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 630 [2024-08-14 14:29:28,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:29:28,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 646 [2024-08-14 14:29:28,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:29:28,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 735 [2024-08-14 14:29:28,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:29:28,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 781 [2024-08-14 14:29:28,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:29:28,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 797 [2024-08-14 14:29:28,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:29:28,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 886 [2024-08-14 14:29:28,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:29:28,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 932 [2024-08-14 14:29:28,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:29:28,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 948 [2024-08-14 14:29:28,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:29:28,452 INFO L134 CoverageAnalysis]: Checked inductivity of 3169 backedges. 138 proven. 0 refuted. 0 times theorem prover too weak. 3031 trivial. 0 not checked. [2024-08-14 14:29:28,452 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-14 14:29:28,452 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1995410770] [2024-08-14 14:29:28,453 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1995410770] provided 1 perfect and 0 imperfect interpolant sequences [2024-08-14 14:29:28,453 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-08-14 14:29:28,453 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-08-14 14:29:28,453 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [9081085] [2024-08-14 14:29:28,453 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-08-14 14:29:28,454 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-08-14 14:29:28,454 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-14 14:29:28,455 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-08-14 14:29:28,455 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-08-14 14:29:28,455 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) [2024-08-14 14:29:28,662 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-08-14 14:29:28,662 INFO L93 Difference]: Finished difference Result 4658 states and 7143 transitions. [2024-08-14 14:29:28,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-08-14 14:29:28,662 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 [2024-08-14 14:29:28,662 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-08-14 14:29:28,670 INFO L225 Difference]: With dead ends: 4658 [2024-08-14 14:29:28,670 INFO L226 Difference]: Without dead ends: 4658 [2024-08-14 14:29:28,671 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 [2024-08-14 14:29:28,671 INFO L413 NwaCegarLoop]: 284 mSDtfsCounter, 295 mSDsluCounter, 1409 mSDsCounter, 0 mSdLazyCounter, 346 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 297 SdHoareTripleChecker+Valid, 1693 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 [2024-08-14 14:29:28,671 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [297 Valid, 1693 Invalid, 347 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 346 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-08-14 14:29:28,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4658 states. [2024-08-14 14:29:28,729 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4658 to 4098. [2024-08-14 14:29:28,734 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) [2024-08-14 14:29:28,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4098 states to 4098 states and 6359 transitions. [2024-08-14 14:29:28,743 INFO L78 Accepts]: Start accepts. Automaton has 4098 states and 6359 transitions. Word has length 1042 [2024-08-14 14:29:28,743 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-08-14 14:29:28,743 INFO L495 AbstractCegarLoop]: Abstraction has 4098 states and 6359 transitions. [2024-08-14 14:29:28,744 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) [2024-08-14 14:29:28,744 INFO L276 IsEmpty]: Start isEmpty. Operand 4098 states and 6359 transitions. [2024-08-14 14:29:28,756 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1043 [2024-08-14 14:29:28,757 INFO L187 NwaCegarLoop]: Found error trace [2024-08-14 14:29:28,757 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] [2024-08-14 14:29:28,757 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-08-14 14:29:28,759 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-08-14 14:29:28,759 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-14 14:29:28,760 INFO L85 PathProgramCache]: Analyzing trace with hash -10364981, now seen corresponding path program 1 times [2024-08-14 14:29:28,760 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-14 14:29:28,760 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [703138410] [2024-08-14 14:29:28,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-14 14:29:28,761 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-14 14:29:37,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:29:39,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-08-14 14:29:39,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:29:39,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-08-14 14:29:39,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:29:39,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-08-14 14:29:39,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:29:39,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2024-08-14 14:29:39,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:29:39,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2024-08-14 14:29:39,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:29:39,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2024-08-14 14:29:39,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:29:39,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2024-08-14 14:29:39,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:29:39,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 328 [2024-08-14 14:29:39,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:29:39,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2024-08-14 14:29:39,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:29:39,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 433 [2024-08-14 14:29:39,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:29:39,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 479 [2024-08-14 14:29:39,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:29:39,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 495 [2024-08-14 14:29:39,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:29:39,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 584 [2024-08-14 14:29:39,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:29:39,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 630 [2024-08-14 14:29:39,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:29:39,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 646 [2024-08-14 14:29:39,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:29:39,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 735 [2024-08-14 14:29:39,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:29:39,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 781 [2024-08-14 14:29:39,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:29:39,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 797 [2024-08-14 14:29:39,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:29:39,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 886 [2024-08-14 14:29:39,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:29:39,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 932 [2024-08-14 14:29:39,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:29:39,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 948 [2024-08-14 14:29:39,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:29:39,487 INFO L134 CoverageAnalysis]: Checked inductivity of 3169 backedges. 66 proven. 0 refuted. 0 times theorem prover too weak. 3103 trivial. 0 not checked. [2024-08-14 14:29:39,488 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-14 14:29:39,488 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [703138410] [2024-08-14 14:29:39,488 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [703138410] provided 1 perfect and 0 imperfect interpolant sequences [2024-08-14 14:29:39,488 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-08-14 14:29:39,488 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-08-14 14:29:39,488 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1604481386] [2024-08-14 14:29:39,489 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-08-14 14:29:39,489 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-08-14 14:29:39,489 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-14 14:29:39,490 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-08-14 14:29:39,490 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-08-14 14:29:39,490 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) [2024-08-14 14:29:39,698 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-08-14 14:29:39,699 INFO L93 Difference]: Finished difference Result 4127 states and 6400 transitions. [2024-08-14 14:29:39,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-08-14 14:29:39,699 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 [2024-08-14 14:29:39,699 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-08-14 14:29:39,705 INFO L225 Difference]: With dead ends: 4127 [2024-08-14 14:29:39,706 INFO L226 Difference]: Without dead ends: 4123 [2024-08-14 14:29:39,706 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 [2024-08-14 14:29:39,706 INFO L413 NwaCegarLoop]: 288 mSDtfsCounter, 355 mSDsluCounter, 1383 mSDsCounter, 0 mSdLazyCounter, 324 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 358 SdHoareTripleChecker+Valid, 1671 SdHoareTripleChecker+Invalid, 326 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 324 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-08-14 14:29:39,707 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [358 Valid, 1671 Invalid, 326 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 324 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-08-14 14:29:39,709 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4123 states. [2024-08-14 14:29:39,749 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4123 to 4123. [2024-08-14 14:29:39,753 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) [2024-08-14 14:29:39,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4123 states to 4123 states and 6396 transitions. [2024-08-14 14:29:39,761 INFO L78 Accepts]: Start accepts. Automaton has 4123 states and 6396 transitions. Word has length 1042 [2024-08-14 14:29:39,762 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-08-14 14:29:39,762 INFO L495 AbstractCegarLoop]: Abstraction has 4123 states and 6396 transitions. [2024-08-14 14:29:39,762 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) [2024-08-14 14:29:39,762 INFO L276 IsEmpty]: Start isEmpty. Operand 4123 states and 6396 transitions. [2024-08-14 14:29:39,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1044 [2024-08-14 14:29:39,775 INFO L187 NwaCegarLoop]: Found error trace [2024-08-14 14:29:39,775 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] [2024-08-14 14:29:39,775 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-08-14 14:29:39,776 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-08-14 14:29:39,776 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-14 14:29:39,776 INFO L85 PathProgramCache]: Analyzing trace with hash 1049483488, now seen corresponding path program 1 times [2024-08-14 14:29:39,776 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-14 14:29:39,776 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2056930474] [2024-08-14 14:29:39,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-14 14:29:39,777 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-14 14:29:40,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:29:41,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-08-14 14:29:41,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:29:41,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-08-14 14:29:41,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:29:41,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-08-14 14:29:41,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:29:41,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2024-08-14 14:29:41,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:29:41,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2024-08-14 14:29:41,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:29:41,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2024-08-14 14:29:41,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:29:41,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 283 [2024-08-14 14:29:41,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:29:41,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 329 [2024-08-14 14:29:41,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:29:41,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 345 [2024-08-14 14:29:41,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:29:41,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 434 [2024-08-14 14:29:41,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:29:41,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 480 [2024-08-14 14:29:41,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:29:41,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 496 [2024-08-14 14:29:41,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:29:41,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 585 [2024-08-14 14:29:41,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:29:41,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 631 [2024-08-14 14:29:41,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:29:41,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 647 [2024-08-14 14:29:41,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:29:41,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 736 [2024-08-14 14:29:41,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:29:41,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 782 [2024-08-14 14:29:41,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:29:41,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 798 [2024-08-14 14:29:41,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:29:41,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 887 [2024-08-14 14:29:41,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:29:41,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 933 [2024-08-14 14:29:41,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:29:41,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 949 [2024-08-14 14:29:41,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:29:41,355 INFO L134 CoverageAnalysis]: Checked inductivity of 3169 backedges. 48 proven. 0 refuted. 0 times theorem prover too weak. 3121 trivial. 0 not checked. [2024-08-14 14:29:41,355 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-14 14:29:41,355 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2056930474] [2024-08-14 14:29:41,356 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2056930474] provided 1 perfect and 0 imperfect interpolant sequences [2024-08-14 14:29:41,356 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-08-14 14:29:41,356 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-08-14 14:29:41,356 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [408630108] [2024-08-14 14:29:41,356 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-08-14 14:29:41,357 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-08-14 14:29:41,357 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-14 14:29:41,358 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-08-14 14:29:41,358 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-08-14 14:29:41,358 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) [2024-08-14 14:29:41,389 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-08-14 14:29:41,389 INFO L93 Difference]: Finished difference Result 4121 states and 6392 transitions. [2024-08-14 14:29:41,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-08-14 14:29:41,390 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 [2024-08-14 14:29:41,390 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-08-14 14:29:41,395 INFO L225 Difference]: With dead ends: 4121 [2024-08-14 14:29:41,395 INFO L226 Difference]: Without dead ends: 4098 [2024-08-14 14:29:41,395 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 [2024-08-14 14:29:41,396 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 [2024-08-14 14:29:41,396 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] [2024-08-14 14:29:41,398 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4098 states. [2024-08-14 14:29:41,433 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4098 to 4098. [2024-08-14 14:29:41,437 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) [2024-08-14 14:29:41,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4098 states to 4098 states and 6358 transitions. [2024-08-14 14:29:41,444 INFO L78 Accepts]: Start accepts. Automaton has 4098 states and 6358 transitions. Word has length 1043 [2024-08-14 14:29:41,445 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-08-14 14:29:41,445 INFO L495 AbstractCegarLoop]: Abstraction has 4098 states and 6358 transitions. [2024-08-14 14:29:41,445 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) [2024-08-14 14:29:41,445 INFO L276 IsEmpty]: Start isEmpty. Operand 4098 states and 6358 transitions. [2024-08-14 14:29:41,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1044 [2024-08-14 14:29:41,510 INFO L187 NwaCegarLoop]: Found error trace [2024-08-14 14:29:41,511 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] [2024-08-14 14:29:41,511 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-08-14 14:29:41,511 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-08-14 14:29:41,511 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-14 14:29:41,512 INFO L85 PathProgramCache]: Analyzing trace with hash 207959815, now seen corresponding path program 1 times [2024-08-14 14:29:41,512 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-14 14:29:41,512 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1469974599] [2024-08-14 14:29:41,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-14 14:29:41,512 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-14 14:30:01,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:30:03,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-08-14 14:30:03,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:30:03,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-08-14 14:30:03,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:30:03,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-08-14 14:30:03,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:30:03,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2024-08-14 14:30:03,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:30:03,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2024-08-14 14:30:03,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:30:03,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2024-08-14 14:30:03,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:30:03,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 283 [2024-08-14 14:30:03,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:30:03,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 329 [2024-08-14 14:30:03,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:30:03,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 345 [2024-08-14 14:30:03,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:30:03,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 434 [2024-08-14 14:30:03,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:30:03,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 480 [2024-08-14 14:30:03,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:30:03,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 496 [2024-08-14 14:30:03,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:30:03,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 585 [2024-08-14 14:30:03,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:30:03,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 631 [2024-08-14 14:30:03,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:30:03,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 647 [2024-08-14 14:30:03,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:30:03,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 736 [2024-08-14 14:30:03,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:30:03,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 782 [2024-08-14 14:30:03,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:30:03,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 798 [2024-08-14 14:30:03,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:30:03,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 887 [2024-08-14 14:30:03,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:30:03,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 933 [2024-08-14 14:30:03,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:30:03,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 949 [2024-08-14 14:30:03,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:30:03,650 INFO L134 CoverageAnalysis]: Checked inductivity of 3169 backedges. 1833 proven. 8 refuted. 0 times theorem prover too weak. 1328 trivial. 0 not checked. [2024-08-14 14:30:03,650 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-14 14:30:03,650 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1469974599] [2024-08-14 14:30:03,651 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1469974599] provided 0 perfect and 1 imperfect interpolant sequences [2024-08-14 14:30:03,651 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [407061614] [2024-08-14 14:30:03,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-14 14:30:03,651 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-14 14:30:03,651 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-08-14 14:30:03,654 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) [2024-08-14 14:30:03,655 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-08-14 14:30:07,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:30:07,421 INFO L262 TraceCheckSpWp]: Trace formula consists of 5401 conjuncts, 13 conjunts are in the unsatisfiable core [2024-08-14 14:30:07,436 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-08-14 14:30:07,479 INFO L134 CoverageAnalysis]: Checked inductivity of 3169 backedges. 1403 proven. 0 refuted. 0 times theorem prover too weak. 1766 trivial. 0 not checked. [2024-08-14 14:30:07,479 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-08-14 14:30:07,479 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [407061614] provided 1 perfect and 0 imperfect interpolant sequences [2024-08-14 14:30:07,479 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-08-14 14:30:07,480 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2024-08-14 14:30:07,480 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [593909350] [2024-08-14 14:30:07,480 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-08-14 14:30:07,481 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-08-14 14:30:07,481 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-14 14:30:07,481 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-08-14 14:30:07,482 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2024-08-14 14:30:07,482 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) [2024-08-14 14:30:07,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-08-14 14:30:07,499 INFO L93 Difference]: Finished difference Result 4084 states and 6324 transitions. [2024-08-14 14:30:07,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-14 14:30:07,500 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 [2024-08-14 14:30:07,502 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-08-14 14:30:07,507 INFO L225 Difference]: With dead ends: 4084 [2024-08-14 14:30:07,508 INFO L226 Difference]: Without dead ends: 4084 [2024-08-14 14:30:07,508 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 [2024-08-14 14:30:07,509 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 [2024-08-14 14:30:07,510 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] [2024-08-14 14:30:07,512 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4084 states. [2024-08-14 14:30:07,553 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4084 to 4084. [2024-08-14 14:30:07,557 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) [2024-08-14 14:30:07,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4084 states to 4084 states and 6324 transitions. [2024-08-14 14:30:07,564 INFO L78 Accepts]: Start accepts. Automaton has 4084 states and 6324 transitions. Word has length 1043 [2024-08-14 14:30:07,565 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-08-14 14:30:07,565 INFO L495 AbstractCegarLoop]: Abstraction has 4084 states and 6324 transitions. [2024-08-14 14:30:07,565 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) [2024-08-14 14:30:07,565 INFO L276 IsEmpty]: Start isEmpty. Operand 4084 states and 6324 transitions. [2024-08-14 14:30:07,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1049 [2024-08-14 14:30:07,577 INFO L187 NwaCegarLoop]: Found error trace [2024-08-14 14:30:07,578 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] [2024-08-14 14:30:07,630 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-08-14 14:30:07,778 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 [2024-08-14 14:30:07,779 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-08-14 14:30:07,780 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-14 14:30:07,780 INFO L85 PathProgramCache]: Analyzing trace with hash 389521795, now seen corresponding path program 1 times [2024-08-14 14:30:07,780 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-14 14:30:07,780 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2029738650] [2024-08-14 14:30:07,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-14 14:30:07,781 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-14 14:30:14,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:30:16,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-08-14 14:30:16,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:30:16,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-08-14 14:30:16,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:30:16,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-08-14 14:30:16,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:30:16,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2024-08-14 14:30:16,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:30:16,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2024-08-14 14:30:16,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:30:16,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2024-08-14 14:30:16,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:30:16,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 284 [2024-08-14 14:30:16,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:30:16,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 330 [2024-08-14 14:30:16,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:30:16,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 346 [2024-08-14 14:30:16,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:30:16,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 436 [2024-08-14 14:30:16,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:30:16,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 482 [2024-08-14 14:30:16,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:30:16,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 498 [2024-08-14 14:30:16,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:30:16,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 588 [2024-08-14 14:30:16,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:30:16,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 634 [2024-08-14 14:30:16,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:30:16,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 650 [2024-08-14 14:30:16,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:30:16,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 740 [2024-08-14 14:30:16,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:30:16,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 786 [2024-08-14 14:30:16,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:30:16,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 802 [2024-08-14 14:30:16,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:30:16,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 892 [2024-08-14 14:30:16,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:30:16,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 938 [2024-08-14 14:30:16,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:30:16,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 954 [2024-08-14 14:30:16,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:30:16,568 INFO L134 CoverageAnalysis]: Checked inductivity of 3172 backedges. 216 proven. 0 refuted. 0 times theorem prover too weak. 2956 trivial. 0 not checked. [2024-08-14 14:30:16,568 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-14 14:30:16,568 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2029738650] [2024-08-14 14:30:16,569 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2029738650] provided 1 perfect and 0 imperfect interpolant sequences [2024-08-14 14:30:16,569 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-08-14 14:30:16,569 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-08-14 14:30:16,569 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [876556524] [2024-08-14 14:30:16,569 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-08-14 14:30:16,570 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-08-14 14:30:16,570 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-14 14:30:16,571 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-08-14 14:30:16,571 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-08-14 14:30:16,571 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) [2024-08-14 14:30:16,592 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-08-14 14:30:16,593 INFO L93 Difference]: Finished difference Result 4110 states and 6350 transitions. [2024-08-14 14:30:16,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-14 14:30:16,593 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 [2024-08-14 14:30:16,593 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-08-14 14:30:16,597 INFO L225 Difference]: With dead ends: 4110 [2024-08-14 14:30:16,598 INFO L226 Difference]: Without dead ends: 4110 [2024-08-14 14:30:16,598 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 [2024-08-14 14:30:16,598 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 [2024-08-14 14:30:16,599 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] [2024-08-14 14:30:16,601 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4110 states. [2024-08-14 14:30:16,633 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4110 to 4110. [2024-08-14 14:30:16,637 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) [2024-08-14 14:30:16,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4110 states to 4110 states and 6350 transitions. [2024-08-14 14:30:16,645 INFO L78 Accepts]: Start accepts. Automaton has 4110 states and 6350 transitions. Word has length 1048 [2024-08-14 14:30:16,646 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-08-14 14:30:16,646 INFO L495 AbstractCegarLoop]: Abstraction has 4110 states and 6350 transitions. [2024-08-14 14:30:16,646 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) [2024-08-14 14:30:16,646 INFO L276 IsEmpty]: Start isEmpty. Operand 4110 states and 6350 transitions. [2024-08-14 14:30:16,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1050 [2024-08-14 14:30:16,657 INFO L187 NwaCegarLoop]: Found error trace [2024-08-14 14:30:16,657 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] [2024-08-14 14:30:16,658 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-08-14 14:30:16,658 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-08-14 14:30:16,658 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-14 14:30:16,658 INFO L85 PathProgramCache]: Analyzing trace with hash 761949646, now seen corresponding path program 1 times [2024-08-14 14:30:16,659 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-14 14:30:16,659 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [424332633] [2024-08-14 14:30:16,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-14 14:30:16,659 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-14 14:30:26,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:30:31,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-08-14 14:30:31,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:30:31,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-08-14 14:30:31,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:30:31,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-08-14 14:30:31,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:30:31,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2024-08-14 14:30:31,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:30:31,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2024-08-14 14:30:31,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:30:31,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2024-08-14 14:30:31,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:30:31,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 285 [2024-08-14 14:30:31,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:30:31,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 331 [2024-08-14 14:30:31,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:30:31,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 347 [2024-08-14 14:30:31,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:30:31,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 437 [2024-08-14 14:30:31,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:30:31,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 483 [2024-08-14 14:30:31,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:30:31,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 499 [2024-08-14 14:30:31,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:30:31,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 589 [2024-08-14 14:30:31,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:30:31,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 635 [2024-08-14 14:30:31,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:30:31,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 651 [2024-08-14 14:30:31,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:30:31,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 741 [2024-08-14 14:30:31,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:30:31,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 787 [2024-08-14 14:30:31,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:30:31,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 803 [2024-08-14 14:30:31,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:30:31,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 893 [2024-08-14 14:30:31,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:30:31,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 939 [2024-08-14 14:30:31,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:30:31,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 955 [2024-08-14 14:30:31,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:30:31,160 INFO L134 CoverageAnalysis]: Checked inductivity of 3190 backedges. 654 proven. 0 refuted. 0 times theorem prover too weak. 2536 trivial. 0 not checked. [2024-08-14 14:30:31,160 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-14 14:30:31,160 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [424332633] [2024-08-14 14:30:31,160 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [424332633] provided 1 perfect and 0 imperfect interpolant sequences [2024-08-14 14:30:31,160 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-08-14 14:30:31,160 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-08-14 14:30:31,161 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1893035699] [2024-08-14 14:30:31,161 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-08-14 14:30:31,161 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-08-14 14:30:31,161 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-14 14:30:31,162 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-08-14 14:30:31,163 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2024-08-14 14:30:31,163 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) [2024-08-14 14:30:31,516 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-08-14 14:30:31,516 INFO L93 Difference]: Finished difference Result 4110 states and 6349 transitions. [2024-08-14 14:30:31,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-08-14 14:30:31,517 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 [2024-08-14 14:30:31,517 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-08-14 14:30:31,522 INFO L225 Difference]: With dead ends: 4110 [2024-08-14 14:30:31,522 INFO L226 Difference]: Without dead ends: 4110 [2024-08-14 14:30:31,523 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 [2024-08-14 14:30:31,523 INFO L413 NwaCegarLoop]: 300 mSDtfsCounter, 917 mSDsluCounter, 1937 mSDsCounter, 0 mSdLazyCounter, 393 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 920 SdHoareTripleChecker+Valid, 2237 SdHoareTripleChecker+Invalid, 397 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 393 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-08-14 14:30:31,525 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [920 Valid, 2237 Invalid, 397 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 393 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-08-14 14:30:31,527 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4110 states. [2024-08-14 14:30:31,560 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4110 to 4110. [2024-08-14 14:30:31,566 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) [2024-08-14 14:30:31,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4110 states to 4110 states and 6349 transitions. [2024-08-14 14:30:31,574 INFO L78 Accepts]: Start accepts. Automaton has 4110 states and 6349 transitions. Word has length 1049 [2024-08-14 14:30:31,574 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-08-14 14:30:31,574 INFO L495 AbstractCegarLoop]: Abstraction has 4110 states and 6349 transitions. [2024-08-14 14:30:31,574 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) [2024-08-14 14:30:31,574 INFO L276 IsEmpty]: Start isEmpty. Operand 4110 states and 6349 transitions. [2024-08-14 14:30:31,585 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1050 [2024-08-14 14:30:31,585 INFO L187 NwaCegarLoop]: Found error trace [2024-08-14 14:30:31,586 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] [2024-08-14 14:30:31,586 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-08-14 14:30:31,586 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-08-14 14:30:31,586 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-14 14:30:31,587 INFO L85 PathProgramCache]: Analyzing trace with hash 816945261, now seen corresponding path program 1 times [2024-08-14 14:30:31,587 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-14 14:30:31,587 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [620005913] [2024-08-14 14:30:31,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-14 14:30:31,587 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-14 14:30:49,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:30:55,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-08-14 14:30:55,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:30:55,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-08-14 14:30:55,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:30:55,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-08-14 14:30:55,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:30:55,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2024-08-14 14:30:55,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:30:55,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2024-08-14 14:30:55,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:30:55,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2024-08-14 14:30:55,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:30:55,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 285 [2024-08-14 14:30:55,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:30:55,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 331 [2024-08-14 14:30:55,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:30:55,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 347 [2024-08-14 14:30:55,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:30:55,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 437 [2024-08-14 14:30:55,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:30:55,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 483 [2024-08-14 14:30:55,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:30:55,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 499 [2024-08-14 14:30:55,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:30:55,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 589 [2024-08-14 14:30:55,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:30:55,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 635 [2024-08-14 14:30:55,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:30:55,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 651 [2024-08-14 14:30:55,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:30:55,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 741 [2024-08-14 14:30:55,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:30:55,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 787 [2024-08-14 14:30:55,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:30:55,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 803 [2024-08-14 14:30:55,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:30:55,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 893 [2024-08-14 14:30:55,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:30:55,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 939 [2024-08-14 14:30:55,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:30:55,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 955 [2024-08-14 14:30:55,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:30:55,301 INFO L134 CoverageAnalysis]: Checked inductivity of 3190 backedges. 816 proven. 0 refuted. 0 times theorem prover too weak. 2374 trivial. 0 not checked. [2024-08-14 14:30:55,301 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-14 14:30:55,301 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [620005913] [2024-08-14 14:30:55,301 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [620005913] provided 1 perfect and 0 imperfect interpolant sequences [2024-08-14 14:30:55,301 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-08-14 14:30:55,301 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-08-14 14:30:55,301 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [521435734] [2024-08-14 14:30:55,302 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-08-14 14:30:55,302 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-08-14 14:30:55,302 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-14 14:30:55,303 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-08-14 14:30:55,303 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2024-08-14 14:30:55,304 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) [2024-08-14 14:30:55,662 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-08-14 14:30:55,663 INFO L93 Difference]: Finished difference Result 4720 states and 7298 transitions. [2024-08-14 14:30:55,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-08-14 14:30:55,663 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 [2024-08-14 14:30:55,663 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-08-14 14:30:55,668 INFO L225 Difference]: With dead ends: 4720 [2024-08-14 14:30:55,668 INFO L226 Difference]: Without dead ends: 4720 [2024-08-14 14:30:55,668 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 [2024-08-14 14:30:55,669 INFO L413 NwaCegarLoop]: 310 mSDtfsCounter, 780 mSDsluCounter, 2668 mSDsCounter, 0 mSdLazyCounter, 350 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 786 SdHoareTripleChecker+Valid, 2978 SdHoareTripleChecker+Invalid, 351 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 350 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-08-14 14:30:55,669 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [786 Valid, 2978 Invalid, 351 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 350 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-08-14 14:30:55,671 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4720 states. [2024-08-14 14:30:55,710 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4720 to 4415. [2024-08-14 14:30:55,713 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) [2024-08-14 14:30:55,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4415 states to 4415 states and 6822 transitions. [2024-08-14 14:30:55,727 INFO L78 Accepts]: Start accepts. Automaton has 4415 states and 6822 transitions. Word has length 1049 [2024-08-14 14:30:55,727 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-08-14 14:30:55,727 INFO L495 AbstractCegarLoop]: Abstraction has 4415 states and 6822 transitions. [2024-08-14 14:30:55,727 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) [2024-08-14 14:30:55,727 INFO L276 IsEmpty]: Start isEmpty. Operand 4415 states and 6822 transitions. [2024-08-14 14:30:55,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1050 [2024-08-14 14:30:55,742 INFO L187 NwaCegarLoop]: Found error trace [2024-08-14 14:30:55,743 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] [2024-08-14 14:30:55,743 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-08-14 14:30:55,743 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-08-14 14:30:55,743 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-14 14:30:55,744 INFO L85 PathProgramCache]: Analyzing trace with hash 1445599948, now seen corresponding path program 1 times [2024-08-14 14:30:55,744 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-14 14:30:55,744 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [808408002] [2024-08-14 14:30:55,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-14 14:30:55,744 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-14 14:31:13,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:31:16,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-08-14 14:31:16,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:31:16,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-08-14 14:31:16,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:31:16,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-08-14 14:31:16,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:31:16,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2024-08-14 14:31:16,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:31:16,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2024-08-14 14:31:16,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:31:16,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2024-08-14 14:31:16,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:31:16,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 285 [2024-08-14 14:31:16,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:31:16,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 331 [2024-08-14 14:31:16,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:31:16,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 347 [2024-08-14 14:31:16,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:31:16,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 437 [2024-08-14 14:31:16,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:31:16,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 483 [2024-08-14 14:31:16,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:31:16,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 499 [2024-08-14 14:31:16,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:31:16,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 589 [2024-08-14 14:31:16,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:31:16,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 635 [2024-08-14 14:31:16,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:31:16,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 651 [2024-08-14 14:31:16,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:31:16,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 741 [2024-08-14 14:31:16,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:31:16,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 787 [2024-08-14 14:31:16,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:31:16,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 803 [2024-08-14 14:31:16,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:31:16,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 893 [2024-08-14 14:31:16,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:31:16,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 939 [2024-08-14 14:31:16,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:31:16,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 955 [2024-08-14 14:31:16,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:31:16,134 INFO L134 CoverageAnalysis]: Checked inductivity of 3190 backedges. 1825 proven. 16 refuted. 0 times theorem prover too weak. 1349 trivial. 0 not checked. [2024-08-14 14:31:16,135 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-14 14:31:16,135 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [808408002] [2024-08-14 14:31:16,135 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [808408002] provided 0 perfect and 1 imperfect interpolant sequences [2024-08-14 14:31:16,135 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2041476975] [2024-08-14 14:31:16,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-14 14:31:16,135 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-14 14:31:16,135 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-08-14 14:31:16,137 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) [2024-08-14 14:31:16,137 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-08-14 14:31:18,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:31:18,380 INFO L262 TraceCheckSpWp]: Trace formula consists of 5420 conjuncts, 7 conjunts are in the unsatisfiable core [2024-08-14 14:31:18,394 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-08-14 14:31:18,773 INFO L134 CoverageAnalysis]: Checked inductivity of 3190 backedges. 912 proven. 0 refuted. 0 times theorem prover too weak. 2278 trivial. 0 not checked. [2024-08-14 14:31:18,773 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-08-14 14:31:18,773 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2041476975] provided 1 perfect and 0 imperfect interpolant sequences [2024-08-14 14:31:18,773 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-08-14 14:31:18,773 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [9] total 11 [2024-08-14 14:31:18,774 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [463224458] [2024-08-14 14:31:18,774 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-08-14 14:31:18,774 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-08-14 14:31:18,774 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-14 14:31:18,775 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-08-14 14:31:18,775 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2024-08-14 14:31:18,775 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) [2024-08-14 14:31:18,858 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-08-14 14:31:18,858 INFO L93 Difference]: Finished difference Result 4415 states and 6806 transitions. [2024-08-14 14:31:18,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-14 14:31:18,858 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 [2024-08-14 14:31:18,859 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-08-14 14:31:18,863 INFO L225 Difference]: With dead ends: 4415 [2024-08-14 14:31:18,863 INFO L226 Difference]: Without dead ends: 4415 [2024-08-14 14:31:18,863 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 [2024-08-14 14:31:18,864 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 [2024-08-14 14:31:18,864 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] [2024-08-14 14:31:18,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4415 states. [2024-08-14 14:31:18,898 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4415 to 4415. [2024-08-14 14:31:18,903 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) [2024-08-14 14:31:18,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4415 states to 4415 states and 6806 transitions. [2024-08-14 14:31:18,912 INFO L78 Accepts]: Start accepts. Automaton has 4415 states and 6806 transitions. Word has length 1049 [2024-08-14 14:31:18,913 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-08-14 14:31:18,913 INFO L495 AbstractCegarLoop]: Abstraction has 4415 states and 6806 transitions. [2024-08-14 14:31:18,913 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) [2024-08-14 14:31:18,913 INFO L276 IsEmpty]: Start isEmpty. Operand 4415 states and 6806 transitions. [2024-08-14 14:31:18,924 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1051 [2024-08-14 14:31:18,925 INFO L187 NwaCegarLoop]: Found error trace [2024-08-14 14:31:18,925 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] [2024-08-14 14:31:18,966 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-08-14 14:31:19,125 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 [2024-08-14 14:31:19,126 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-08-14 14:31:19,126 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-14 14:31:19,127 INFO L85 PathProgramCache]: Analyzing trace with hash 1599150219, now seen corresponding path program 1 times [2024-08-14 14:31:19,127 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-14 14:31:19,127 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1307063468] [2024-08-14 14:31:19,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-14 14:31:19,127 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-14 14:31:36,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:31:41,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-08-14 14:31:41,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:31:41,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-08-14 14:31:41,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:31:41,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-08-14 14:31:41,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:31:41,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2024-08-14 14:31:41,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:31:41,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2024-08-14 14:31:41,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:31:41,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2024-08-14 14:31:41,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:31:41,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 286 [2024-08-14 14:31:41,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:31:41,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 332 [2024-08-14 14:31:41,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:31:41,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 348 [2024-08-14 14:31:41,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:31:41,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 438 [2024-08-14 14:31:41,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:31:41,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 484 [2024-08-14 14:31:41,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:31:41,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 500 [2024-08-14 14:31:41,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:31:41,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 590 [2024-08-14 14:31:41,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:31:41,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 636 [2024-08-14 14:31:41,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:31:41,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 652 [2024-08-14 14:31:41,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:31:41,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 742 [2024-08-14 14:31:41,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:31:41,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 788 [2024-08-14 14:31:41,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:31:41,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 804 [2024-08-14 14:31:41,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:31:41,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 894 [2024-08-14 14:31:41,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:31:41,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 940 [2024-08-14 14:31:41,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:31:41,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 956 [2024-08-14 14:31:41,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:31:41,420 INFO L134 CoverageAnalysis]: Checked inductivity of 3190 backedges. 816 proven. 0 refuted. 0 times theorem prover too weak. 2374 trivial. 0 not checked. [2024-08-14 14:31:41,420 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-14 14:31:41,420 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1307063468] [2024-08-14 14:31:41,421 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1307063468] provided 1 perfect and 0 imperfect interpolant sequences [2024-08-14 14:31:41,421 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-08-14 14:31:41,421 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-08-14 14:31:41,421 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1191752946] [2024-08-14 14:31:41,421 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-08-14 14:31:41,422 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-08-14 14:31:41,422 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-14 14:31:41,423 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-08-14 14:31:41,423 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2024-08-14 14:31:41,423 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) [2024-08-14 14:31:41,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-08-14 14:31:41,726 INFO L93 Difference]: Finished difference Result 4720 states and 7280 transitions. [2024-08-14 14:31:41,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-08-14 14:31:41,727 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 [2024-08-14 14:31:41,727 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-08-14 14:31:41,731 INFO L225 Difference]: With dead ends: 4720 [2024-08-14 14:31:41,732 INFO L226 Difference]: Without dead ends: 4720 [2024-08-14 14:31:41,732 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 [2024-08-14 14:31:41,732 INFO L413 NwaCegarLoop]: 304 mSDtfsCounter, 799 mSDsluCounter, 2657 mSDsCounter, 0 mSdLazyCounter, 362 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 805 SdHoareTripleChecker+Valid, 2961 SdHoareTripleChecker+Invalid, 362 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 362 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-08-14 14:31:41,733 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [805 Valid, 2961 Invalid, 362 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 362 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-08-14 14:31:41,736 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4720 states. [2024-08-14 14:31:41,768 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4720 to 4417. [2024-08-14 14:31:41,773 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) [2024-08-14 14:31:41,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4417 states to 4417 states and 6808 transitions. [2024-08-14 14:31:41,782 INFO L78 Accepts]: Start accepts. Automaton has 4417 states and 6808 transitions. Word has length 1050 [2024-08-14 14:31:41,782 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-08-14 14:31:41,783 INFO L495 AbstractCegarLoop]: Abstraction has 4417 states and 6808 transitions. [2024-08-14 14:31:41,783 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) [2024-08-14 14:31:41,783 INFO L276 IsEmpty]: Start isEmpty. Operand 4417 states and 6808 transitions. [2024-08-14 14:31:41,794 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1051 [2024-08-14 14:31:41,795 INFO L187 NwaCegarLoop]: Found error trace [2024-08-14 14:31:41,795 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] [2024-08-14 14:31:41,796 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2024-08-14 14:31:41,796 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-08-14 14:31:41,796 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-14 14:31:41,796 INFO L85 PathProgramCache]: Analyzing trace with hash -9132374, now seen corresponding path program 1 times [2024-08-14 14:31:41,796 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-14 14:31:41,797 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [693170691] [2024-08-14 14:31:41,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-14 14:31:41,797 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-14 14:31:59,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:32:05,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-08-14 14:32:05,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:32:05,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-08-14 14:32:05,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:32:05,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-08-14 14:32:05,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:32:05,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2024-08-14 14:32:05,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:32:05,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2024-08-14 14:32:05,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:32:05,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2024-08-14 14:32:05,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:32:05,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 286 [2024-08-14 14:32:05,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:32:05,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 332 [2024-08-14 14:32:05,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:32:05,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 348 [2024-08-14 14:32:05,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:32:05,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 438 [2024-08-14 14:32:05,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:32:05,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 484 [2024-08-14 14:32:05,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:32:05,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 500 [2024-08-14 14:32:05,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:32:05,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 590 [2024-08-14 14:32:05,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:32:05,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 636 [2024-08-14 14:32:05,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:32:05,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 652 [2024-08-14 14:32:05,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:32:05,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 742 [2024-08-14 14:32:05,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:32:05,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 788 [2024-08-14 14:32:05,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:32:05,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 804 [2024-08-14 14:32:05,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:32:05,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 894 [2024-08-14 14:32:05,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:32:05,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 940 [2024-08-14 14:32:05,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:32:05,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 956 [2024-08-14 14:32:05,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:32:05,132 INFO L134 CoverageAnalysis]: Checked inductivity of 3190 backedges. 2179 proven. 87 refuted. 0 times theorem prover too weak. 924 trivial. 0 not checked. [2024-08-14 14:32:05,132 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-14 14:32:05,132 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [693170691] [2024-08-14 14:32:05,132 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [693170691] provided 0 perfect and 1 imperfect interpolant sequences [2024-08-14 14:32:05,132 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [173254048] [2024-08-14 14:32:05,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-14 14:32:05,133 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-14 14:32:05,133 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-08-14 14:32:05,134 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) [2024-08-14 14:32:05,135 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-08-14 14:32:10,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:32:10,980 INFO L262 TraceCheckSpWp]: Trace formula consists of 5423 conjuncts, 95 conjunts are in the unsatisfiable core [2024-08-14 14:32:10,997 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-08-14 14:32:15,379 INFO L134 CoverageAnalysis]: Checked inductivity of 3190 backedges. 1805 proven. 478 refuted. 0 times theorem prover too weak. 907 trivial. 0 not checked. [2024-08-14 14:32:15,379 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-08-14 14:32:20,311 INFO L134 CoverageAnalysis]: Checked inductivity of 3190 backedges. 1930 proven. 416 refuted. 0 times theorem prover too weak. 844 trivial. 0 not checked. [2024-08-14 14:32:20,311 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [173254048] provided 0 perfect and 2 imperfect interpolant sequences [2024-08-14 14:32:20,311 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-08-14 14:32:20,311 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 16, 13] total 37 [2024-08-14 14:32:20,312 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1484985926] [2024-08-14 14:32:20,312 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-08-14 14:32:20,313 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 37 states [2024-08-14 14:32:20,313 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-14 14:32:20,315 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2024-08-14 14:32:20,316 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=182, Invalid=1150, Unknown=0, NotChecked=0, Total=1332 [2024-08-14 14:32:20,316 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) [2024-08-14 14:32:26,590 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-08-14 14:32:26,590 INFO L93 Difference]: Finished difference Result 18654 states and 28431 transitions. [2024-08-14 14:32:26,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 97 states. [2024-08-14 14:32:26,591 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 [2024-08-14 14:32:26,592 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-08-14 14:32:26,607 INFO L225 Difference]: With dead ends: 18654 [2024-08-14 14:32:26,608 INFO L226 Difference]: Without dead ends: 18654 [2024-08-14 14:32:26,611 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2248 GetRequests, 2118 SyntacticMatches, 0 SemanticMatches, 130 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4730 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=2090, Invalid=15202, Unknown=0, NotChecked=0, Total=17292 [2024-08-14 14:32:26,612 INFO L413 NwaCegarLoop]: 880 mSDtfsCounter, 2384 mSDsluCounter, 17690 mSDsCounter, 0 mSdLazyCounter, 5441 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2384 SdHoareTripleChecker+Valid, 18570 SdHoareTripleChecker+Invalid, 5458 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 5441 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2024-08-14 14:32:26,612 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2384 Valid, 18570 Invalid, 5458 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 5441 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2024-08-14 14:32:26,623 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18654 states. [2024-08-14 14:32:26,733 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18654 to 11798. [2024-08-14 14:32:26,744 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) [2024-08-14 14:32:26,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11798 states to 11798 states and 18184 transitions. [2024-08-14 14:32:26,768 INFO L78 Accepts]: Start accepts. Automaton has 11798 states and 18184 transitions. Word has length 1050 [2024-08-14 14:32:26,769 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-08-14 14:32:26,769 INFO L495 AbstractCegarLoop]: Abstraction has 11798 states and 18184 transitions. [2024-08-14 14:32:26,770 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) [2024-08-14 14:32:26,770 INFO L276 IsEmpty]: Start isEmpty. Operand 11798 states and 18184 transitions. [2024-08-14 14:32:26,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1053 [2024-08-14 14:32:26,789 INFO L187 NwaCegarLoop]: Found error trace [2024-08-14 14:32:26,790 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] [2024-08-14 14:32:26,856 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-08-14 14:32:26,990 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 [2024-08-14 14:32:26,991 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-08-14 14:32:26,991 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-14 14:32:26,992 INFO L85 PathProgramCache]: Analyzing trace with hash -1395559961, now seen corresponding path program 1 times [2024-08-14 14:32:26,992 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-14 14:32:26,992 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [263615768] [2024-08-14 14:32:26,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-14 14:32:26,992 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-14 14:32:36,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:32:41,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-08-14 14:32:41,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:32:41,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-08-14 14:32:41,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:32:41,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-08-14 14:32:41,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:32:41,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2024-08-14 14:32:41,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:32:41,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2024-08-14 14:32:41,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:32:41,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2024-08-14 14:32:41,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:32:41,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 286 [2024-08-14 14:32:41,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:32:41,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 332 [2024-08-14 14:32:41,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:32:41,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 348 [2024-08-14 14:32:41,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:32:41,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 438 [2024-08-14 14:32:41,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:32:41,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 485 [2024-08-14 14:32:41,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:32:41,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 501 [2024-08-14 14:32:41,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:32:41,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 591 [2024-08-14 14:32:41,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:32:41,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 637 [2024-08-14 14:32:41,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:32:41,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 653 [2024-08-14 14:32:41,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:32:41,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 743 [2024-08-14 14:32:41,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:32:41,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 790 [2024-08-14 14:32:41,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:32:41,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 806 [2024-08-14 14:32:41,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:32:41,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 896 [2024-08-14 14:32:41,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:32:41,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 942 [2024-08-14 14:32:41,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:32:41,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 958 [2024-08-14 14:32:41,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:32:41,726 INFO L134 CoverageAnalysis]: Checked inductivity of 3193 backedges. 1821 proven. 59 refuted. 0 times theorem prover too weak. 1313 trivial. 0 not checked. [2024-08-14 14:32:41,726 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-14 14:32:41,726 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [263615768] [2024-08-14 14:32:41,726 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [263615768] provided 0 perfect and 1 imperfect interpolant sequences [2024-08-14 14:32:41,727 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1218760212] [2024-08-14 14:32:41,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-14 14:32:41,727 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-14 14:32:41,727 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-08-14 14:32:41,728 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) [2024-08-14 14:32:41,729 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-08-14 14:32:44,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:32:44,060 INFO L262 TraceCheckSpWp]: Trace formula consists of 5434 conjuncts, 7 conjunts are in the unsatisfiable core [2024-08-14 14:32:44,071 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-08-14 14:32:44,746 INFO L134 CoverageAnalysis]: Checked inductivity of 3193 backedges. 1494 proven. 2 refuted. 0 times theorem prover too weak. 1697 trivial. 0 not checked. [2024-08-14 14:32:44,746 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-08-14 14:32:45,373 INFO L134 CoverageAnalysis]: Checked inductivity of 3193 backedges. 1310 proven. 2 refuted. 0 times theorem prover too weak. 1881 trivial. 0 not checked. [2024-08-14 14:32:45,374 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1218760212] provided 0 perfect and 2 imperfect interpolant sequences [2024-08-14 14:32:45,374 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-08-14 14:32:45,374 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 4, 4] total 15 [2024-08-14 14:32:45,374 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [710591692] [2024-08-14 14:32:45,374 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-08-14 14:32:45,376 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-08-14 14:32:45,376 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-14 14:32:45,377 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-08-14 14:32:45,377 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=175, Unknown=0, NotChecked=0, Total=210 [2024-08-14 14:32:45,377 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) [2024-08-14 14:32:46,306 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-08-14 14:32:46,306 INFO L93 Difference]: Finished difference Result 17100 states and 26390 transitions. [2024-08-14 14:32:46,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-08-14 14:32:46,307 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 [2024-08-14 14:32:46,308 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-08-14 14:32:46,331 INFO L225 Difference]: With dead ends: 17100 [2024-08-14 14:32:46,331 INFO L226 Difference]: Without dead ends: 17100 [2024-08-14 14:32:46,332 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2168 GetRequests, 2143 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 80 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=151, Invalid=551, Unknown=0, NotChecked=0, Total=702 [2024-08-14 14:32:46,332 INFO L413 NwaCegarLoop]: 506 mSDtfsCounter, 964 mSDsluCounter, 4677 mSDsCounter, 0 mSdLazyCounter, 1379 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 964 SdHoareTripleChecker+Valid, 5183 SdHoareTripleChecker+Invalid, 1382 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1379 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-08-14 14:32:46,332 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [964 Valid, 5183 Invalid, 1382 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1379 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-08-14 14:32:46,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17100 states. [2024-08-14 14:32:46,479 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17100 to 11816. [2024-08-14 14:32:46,490 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) [2024-08-14 14:32:46,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11816 states to 11816 states and 18164 transitions. [2024-08-14 14:32:46,504 INFO L78 Accepts]: Start accepts. Automaton has 11816 states and 18164 transitions. Word has length 1052 [2024-08-14 14:32:46,505 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-08-14 14:32:46,505 INFO L495 AbstractCegarLoop]: Abstraction has 11816 states and 18164 transitions. [2024-08-14 14:32:46,505 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) [2024-08-14 14:32:46,505 INFO L276 IsEmpty]: Start isEmpty. Operand 11816 states and 18164 transitions. [2024-08-14 14:32:46,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1057 [2024-08-14 14:32:46,529 INFO L187 NwaCegarLoop]: Found error trace [2024-08-14 14:32:46,529 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] [2024-08-14 14:32:46,575 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-08-14 14:32:46,729 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 [2024-08-14 14:32:46,730 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-08-14 14:32:46,730 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-14 14:32:46,730 INFO L85 PathProgramCache]: Analyzing trace with hash -1008284240, now seen corresponding path program 1 times [2024-08-14 14:32:46,730 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-14 14:32:46,731 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [640691489] [2024-08-14 14:32:46,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-14 14:32:46,731 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-14 14:33:06,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:33:07,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-08-14 14:33:07,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:33:07,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-08-14 14:33:07,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:33:07,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-08-14 14:33:07,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:33:07,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2024-08-14 14:33:07,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:33:07,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2024-08-14 14:33:07,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:33:07,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2024-08-14 14:33:07,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:33:07,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 286 [2024-08-14 14:33:07,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:33:07,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 333 [2024-08-14 14:33:07,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:33:07,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 349 [2024-08-14 14:33:07,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:33:07,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 439 [2024-08-14 14:33:07,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:33:07,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 487 [2024-08-14 14:33:07,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:33:07,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 503 [2024-08-14 14:33:07,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:33:07,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 593 [2024-08-14 14:33:07,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:33:07,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 639 [2024-08-14 14:33:07,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:33:07,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 655 [2024-08-14 14:33:07,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:33:07,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 745 [2024-08-14 14:33:07,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:33:07,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 793 [2024-08-14 14:33:07,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:33:07,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 809 [2024-08-14 14:33:07,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:33:07,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 899 [2024-08-14 14:33:07,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:33:07,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 946 [2024-08-14 14:33:07,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:33:07,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 962 [2024-08-14 14:33:07,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:33:07,958 INFO L134 CoverageAnalysis]: Checked inductivity of 3199 backedges. 1316 proven. 128 refuted. 0 times theorem prover too weak. 1755 trivial. 0 not checked. [2024-08-14 14:33:07,958 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-14 14:33:07,958 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [640691489] [2024-08-14 14:33:07,958 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [640691489] provided 0 perfect and 1 imperfect interpolant sequences [2024-08-14 14:33:07,958 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1608841091] [2024-08-14 14:33:07,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-14 14:33:07,959 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-14 14:33:07,959 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-08-14 14:33:07,961 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) [2024-08-14 14:33:07,962 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-08-14 14:33:10,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:33:10,456 INFO L262 TraceCheckSpWp]: Trace formula consists of 5441 conjuncts, 40 conjunts are in the unsatisfiable core [2024-08-14 14:33:10,466 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-08-14 14:33:11,190 INFO L134 CoverageAnalysis]: Checked inductivity of 3199 backedges. 1600 proven. 47 refuted. 0 times theorem prover too weak. 1552 trivial. 0 not checked. [2024-08-14 14:33:11,190 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-08-14 14:33:12,122 INFO L134 CoverageAnalysis]: Checked inductivity of 3199 backedges. 1617 proven. 13 refuted. 0 times theorem prover too weak. 1569 trivial. 0 not checked. [2024-08-14 14:33:12,123 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1608841091] provided 0 perfect and 2 imperfect interpolant sequences [2024-08-14 14:33:12,123 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-08-14 14:33:12,123 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 14, 11] total 25 [2024-08-14 14:33:12,123 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [228278674] [2024-08-14 14:33:12,123 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-08-14 14:33:12,124 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2024-08-14 14:33:12,124 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-14 14:33:12,125 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2024-08-14 14:33:12,126 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=540, Unknown=0, NotChecked=0, Total=600 [2024-08-14 14:33:12,126 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) [2024-08-14 14:33:13,178 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-08-14 14:33:13,178 INFO L93 Difference]: Finished difference Result 13224 states and 19939 transitions. [2024-08-14 14:33:13,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2024-08-14 14:33:13,179 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 [2024-08-14 14:33:13,180 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-08-14 14:33:13,193 INFO L225 Difference]: With dead ends: 13224 [2024-08-14 14:33:13,193 INFO L226 Difference]: Without dead ends: 12499 [2024-08-14 14:33:13,194 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2195 GetRequests, 2147 SyntacticMatches, 2 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 317 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=228, Invalid=2028, Unknown=0, NotChecked=0, Total=2256 [2024-08-14 14:33:13,195 INFO L413 NwaCegarLoop]: 607 mSDtfsCounter, 1424 mSDsluCounter, 9926 mSDsCounter, 0 mSdLazyCounter, 1347 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1427 SdHoareTripleChecker+Valid, 10533 SdHoareTripleChecker+Invalid, 1367 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 1347 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-08-14 14:33:13,195 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1427 Valid, 10533 Invalid, 1367 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 1347 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-08-14 14:33:13,204 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12499 states. [2024-08-14 14:33:13,311 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12499 to 11271. [2024-08-14 14:33:13,322 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) [2024-08-14 14:33:13,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11271 states to 11271 states and 17285 transitions. [2024-08-14 14:33:13,341 INFO L78 Accepts]: Start accepts. Automaton has 11271 states and 17285 transitions. Word has length 1056 [2024-08-14 14:33:13,341 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-08-14 14:33:13,341 INFO L495 AbstractCegarLoop]: Abstraction has 11271 states and 17285 transitions. [2024-08-14 14:33:13,342 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) [2024-08-14 14:33:13,342 INFO L276 IsEmpty]: Start isEmpty. Operand 11271 states and 17285 transitions. [2024-08-14 14:33:13,360 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1057 [2024-08-14 14:33:13,361 INFO L187 NwaCegarLoop]: Found error trace [2024-08-14 14:33:13,361 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] [2024-08-14 14:33:13,403 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-08-14 14:33:13,562 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 [2024-08-14 14:33:13,562 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-08-14 14:33:13,562 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-14 14:33:13,563 INFO L85 PathProgramCache]: Analyzing trace with hash -67134203, now seen corresponding path program 2 times [2024-08-14 14:33:13,563 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-14 14:33:13,563 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [276444938] [2024-08-14 14:33:13,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-14 14:33:13,563 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-14 14:33:26,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:33:28,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-08-14 14:33:28,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:33:28,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-08-14 14:33:28,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:33:28,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-08-14 14:33:28,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:33:28,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2024-08-14 14:33:28,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:33:28,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2024-08-14 14:33:28,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:33:28,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2024-08-14 14:33:28,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:33:28,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2024-08-14 14:33:28,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:33:28,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 333 [2024-08-14 14:33:28,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:33:28,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 349 [2024-08-14 14:33:28,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:33:28,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 439 [2024-08-14 14:33:28,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:33:28,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 487 [2024-08-14 14:33:28,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:33:28,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 503 [2024-08-14 14:33:28,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:33:28,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 593 [2024-08-14 14:33:28,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:33:28,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 640 [2024-08-14 14:33:28,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:33:28,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 656 [2024-08-14 14:33:28,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:33:28,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 746 [2024-08-14 14:33:28,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:33:28,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 793 [2024-08-14 14:33:28,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:33:28,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 809 [2024-08-14 14:33:28,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:33:28,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 899 [2024-08-14 14:33:28,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:33:28,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 946 [2024-08-14 14:33:28,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:33:28,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 962 [2024-08-14 14:33:28,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:33:28,079 INFO L134 CoverageAnalysis]: Checked inductivity of 3199 backedges. 764 proven. 0 refuted. 0 times theorem prover too weak. 2435 trivial. 0 not checked. [2024-08-14 14:33:28,079 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-14 14:33:28,079 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [276444938] [2024-08-14 14:33:28,079 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [276444938] provided 1 perfect and 0 imperfect interpolant sequences [2024-08-14 14:33:28,080 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-08-14 14:33:28,080 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-08-14 14:33:28,080 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1186580522] [2024-08-14 14:33:28,080 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-08-14 14:33:28,081 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-08-14 14:33:28,081 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-14 14:33:28,082 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-08-14 14:33:28,082 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-08-14 14:33:28,082 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) [2024-08-14 14:33:28,243 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-08-14 14:33:28,243 INFO L93 Difference]: Finished difference Result 10075 states and 15435 transitions. [2024-08-14 14:33:28,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-08-14 14:33:28,244 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 [2024-08-14 14:33:28,244 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-08-14 14:33:28,255 INFO L225 Difference]: With dead ends: 10075 [2024-08-14 14:33:28,256 INFO L226 Difference]: Without dead ends: 10075 [2024-08-14 14:33:28,256 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2024-08-14 14:33:28,256 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 [2024-08-14 14:33:28,257 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] [2024-08-14 14:33:28,263 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10075 states. [2024-08-14 14:33:28,338 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10075 to 10063. [2024-08-14 14:33:28,347 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) [2024-08-14 14:33:28,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10063 states to 10063 states and 15420 transitions. [2024-08-14 14:33:28,361 INFO L78 Accepts]: Start accepts. Automaton has 10063 states and 15420 transitions. Word has length 1056 [2024-08-14 14:33:28,361 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-08-14 14:33:28,361 INFO L495 AbstractCegarLoop]: Abstraction has 10063 states and 15420 transitions. [2024-08-14 14:33:28,361 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) [2024-08-14 14:33:28,362 INFO L276 IsEmpty]: Start isEmpty. Operand 10063 states and 15420 transitions. [2024-08-14 14:33:28,377 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1057 [2024-08-14 14:33:28,378 INFO L187 NwaCegarLoop]: Found error trace [2024-08-14 14:33:28,378 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] [2024-08-14 14:33:28,378 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2024-08-14 14:33:28,378 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-08-14 14:33:28,378 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-14 14:33:28,379 INFO L85 PathProgramCache]: Analyzing trace with hash 627226744, now seen corresponding path program 1 times [2024-08-14 14:33:28,379 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-14 14:33:28,379 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1089229297] [2024-08-14 14:33:28,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-14 14:33:28,379 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-14 14:33:45,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:33:57,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-08-14 14:33:57,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:33:57,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-08-14 14:33:57,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:33:57,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-08-14 14:33:57,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:33:57,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2024-08-14 14:33:57,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:33:57,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2024-08-14 14:33:57,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:33:57,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2024-08-14 14:33:57,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:33:57,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2024-08-14 14:33:57,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:33:57,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 334 [2024-08-14 14:33:57,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:33:57,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 350 [2024-08-14 14:33:57,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:33:57,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 440 [2024-08-14 14:33:57,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:33:57,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 487 [2024-08-14 14:33:57,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:33:57,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 503 [2024-08-14 14:33:57,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:33:57,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 593 [2024-08-14 14:33:57,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:33:57,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 640 [2024-08-14 14:33:57,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:33:57,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 656 [2024-08-14 14:33:57,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:33:57,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 746 [2024-08-14 14:33:57,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:33:57,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 794 [2024-08-14 14:33:57,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:33:57,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 810 [2024-08-14 14:33:57,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:33:57,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 900 [2024-08-14 14:33:57,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:33:57,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 946 [2024-08-14 14:33:57,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:33:57,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 962 [2024-08-14 14:33:57,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:33:57,118 INFO L134 CoverageAnalysis]: Checked inductivity of 3199 backedges. 1648 proven. 705 refuted. 0 times theorem prover too weak. 846 trivial. 0 not checked. [2024-08-14 14:33:57,118 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-14 14:33:57,118 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1089229297] [2024-08-14 14:33:57,118 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1089229297] provided 0 perfect and 1 imperfect interpolant sequences [2024-08-14 14:33:57,118 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1435272767] [2024-08-14 14:33:57,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-14 14:33:57,119 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-14 14:33:57,119 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-08-14 14:33:57,121 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) [2024-08-14 14:33:57,122 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-08-14 14:34:15,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:34:15,700 INFO L262 TraceCheckSpWp]: Trace formula consists of 5445 conjuncts, 460 conjunts are in the unsatisfiable core [2024-08-14 14:34:15,723 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-08-14 14:34:25,393 INFO L134 CoverageAnalysis]: Checked inductivity of 3199 backedges. 1072 proven. 1767 refuted. 0 times theorem prover too weak. 360 trivial. 0 not checked. [2024-08-14 14:34:25,393 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-08-14 14:34:41,573 INFO L134 CoverageAnalysis]: Checked inductivity of 3199 backedges. 1283 proven. 755 refuted. 0 times theorem prover too weak. 1161 trivial. 0 not checked. [2024-08-14 14:34:41,574 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1435272767] provided 0 perfect and 2 imperfect interpolant sequences [2024-08-14 14:34:41,574 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-08-14 14:34:41,574 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 67, 51] total 133 [2024-08-14 14:34:41,575 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [127342259] [2024-08-14 14:34:41,575 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-08-14 14:34:41,577 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 133 states [2024-08-14 14:34:41,577 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-14 14:34:41,581 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 133 interpolants. [2024-08-14 14:34:41,584 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1841, Invalid=15713, Unknown=2, NotChecked=0, Total=17556 [2024-08-14 14:34:41,585 INFO L87 Difference]: Start difference. First operand 10063 states and 15420 transitions. Second operand has 133 states, 131 states have (on average 14.870229007633588) internal successors, (1948), 133 states have internal predecessors, (1948), 22 states have call successors, (43), 2 states have call predecessors, (43), 3 states have return successors, (42), 20 states have call predecessors, (42), 22 states have call successors, (42) [2024-08-14 14:35:39,397 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-08-14 14:35:39,397 INFO L93 Difference]: Finished difference Result 27180 states and 40710 transitions. [2024-08-14 14:35:39,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 409 states. [2024-08-14 14:35:39,398 INFO L78 Accepts]: Start accepts. Automaton has has 133 states, 131 states have (on average 14.870229007633588) internal successors, (1948), 133 states have internal predecessors, (1948), 22 states have call successors, (43), 2 states have call predecessors, (43), 3 states have return successors, (42), 20 states have call predecessors, (42), 22 states have call successors, (42) Word has length 1056 [2024-08-14 14:35:39,399 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-08-14 14:35:39,437 INFO L225 Difference]: With dead ends: 27180 [2024-08-14 14:35:39,438 INFO L226 Difference]: Without dead ends: 26900 [2024-08-14 14:35:39,466 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2579 GetRequests, 2043 SyntacticMatches, 0 SemanticMatches, 536 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 97230 ImplicationChecksByTransitivity, 50.4s TimeCoverageRelationStatistics Valid=22582, Invalid=266321, Unknown=3, NotChecked=0, Total=288906 [2024-08-14 14:35:39,467 INFO L413 NwaCegarLoop]: 499 mSDtfsCounter, 13229 mSDsluCounter, 30815 mSDsCounter, 0 mSdLazyCounter, 22038 mSolverCounterSat, 95 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13229 SdHoareTripleChecker+Valid, 31314 SdHoareTripleChecker+Invalid, 22134 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 95 IncrementalHoareTripleChecker+Valid, 22038 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.9s IncrementalHoareTripleChecker+Time [2024-08-14 14:35:39,468 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13229 Valid, 31314 Invalid, 22134 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [95 Valid, 22038 Invalid, 1 Unknown, 0 Unchecked, 14.9s Time] [2024-08-14 14:35:39,485 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26900 states. [2024-08-14 14:35:39,665 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26900 to 15738. [2024-08-14 14:35:39,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15738 states, 15438 states have (on average 1.5016841559787537) internal successors, (23183), 15496 states have internal predecessors, (23183), 272 states have call successors, (272), 28 states have call predecessors, (272), 27 states have return successors, (270), 213 states have call predecessors, (270), 270 states have call successors, (270) [2024-08-14 14:35:39,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15738 states to 15738 states and 23725 transitions. [2024-08-14 14:35:39,696 INFO L78 Accepts]: Start accepts. Automaton has 15738 states and 23725 transitions. Word has length 1056 [2024-08-14 14:35:39,696 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-08-14 14:35:39,696 INFO L495 AbstractCegarLoop]: Abstraction has 15738 states and 23725 transitions. [2024-08-14 14:35:39,697 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 133 states, 131 states have (on average 14.870229007633588) internal successors, (1948), 133 states have internal predecessors, (1948), 22 states have call successors, (43), 2 states have call predecessors, (43), 3 states have return successors, (42), 20 states have call predecessors, (42), 22 states have call successors, (42) [2024-08-14 14:35:39,697 INFO L276 IsEmpty]: Start isEmpty. Operand 15738 states and 23725 transitions. [2024-08-14 14:35:39,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1058 [2024-08-14 14:35:39,715 INFO L187 NwaCegarLoop]: Found error trace [2024-08-14 14:35:39,715 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, 5, 5, 5, 5, 5, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-08-14 14:35:39,762 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2024-08-14 14:35:39,915 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable33 [2024-08-14 14:35:39,916 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-08-14 14:35:39,916 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-14 14:35:39,917 INFO L85 PathProgramCache]: Analyzing trace with hash -1585695002, now seen corresponding path program 1 times [2024-08-14 14:35:39,917 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-14 14:35:39,917 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1685121820] [2024-08-14 14:35:39,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-14 14:35:39,917 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-14 14:35:49,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:35:50,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-08-14 14:35:50,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:35:50,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-08-14 14:35:50,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:35:50,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-08-14 14:35:50,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:35:50,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2024-08-14 14:35:50,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:35:50,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2024-08-14 14:35:50,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:35:50,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2024-08-14 14:35:50,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:35:50,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2024-08-14 14:35:50,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:35:50,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 334 [2024-08-14 14:35:50,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:35:50,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 350 [2024-08-14 14:35:50,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:35:50,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 440 [2024-08-14 14:35:50,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:35:50,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 487 [2024-08-14 14:35:50,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:35:50,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 503 [2024-08-14 14:35:50,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:35:50,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 593 [2024-08-14 14:35:50,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:35:50,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 641 [2024-08-14 14:35:50,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:35:50,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 657 [2024-08-14 14:35:50,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:35:50,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 747 [2024-08-14 14:35:50,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:35:50,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 794 [2024-08-14 14:35:50,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:35:50,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 810 [2024-08-14 14:35:50,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:35:50,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 900 [2024-08-14 14:35:50,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:35:50,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 947 [2024-08-14 14:35:50,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:35:50,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 963 [2024-08-14 14:35:50,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:35:50,839 INFO L134 CoverageAnalysis]: Checked inductivity of 3182 backedges. 1751 proven. 0 refuted. 0 times theorem prover too weak. 1431 trivial. 0 not checked. [2024-08-14 14:35:50,839 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-14 14:35:50,839 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1685121820] [2024-08-14 14:35:50,839 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1685121820] provided 1 perfect and 0 imperfect interpolant sequences [2024-08-14 14:35:50,839 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-08-14 14:35:50,840 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-08-14 14:35:50,840 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1258982379] [2024-08-14 14:35:50,840 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-08-14 14:35:50,840 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-08-14 14:35:50,840 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-14 14:35:50,841 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-08-14 14:35:50,841 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2024-08-14 14:35:50,841 INFO L87 Difference]: Start difference. First operand 15738 states and 23725 transitions. Second operand has 7 states, 7 states have (on average 58.857142857142854) internal successors, (412), 7 states have internal predecessors, (412), 4 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (9), 4 states have call predecessors, (9), 4 states have call successors, (9) [2024-08-14 14:35:51,059 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-08-14 14:35:51,059 INFO L93 Difference]: Finished difference Result 29836 states and 45198 transitions. [2024-08-14 14:35:51,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-08-14 14:35:51,060 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 58.857142857142854) internal successors, (412), 7 states have internal predecessors, (412), 4 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (9), 4 states have call predecessors, (9), 4 states have call successors, (9) Word has length 1057 [2024-08-14 14:35:51,060 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-08-14 14:35:51,105 INFO L225 Difference]: With dead ends: 29836 [2024-08-14 14:35:51,105 INFO L226 Difference]: Without dead ends: 28648 [2024-08-14 14:35:51,105 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2024-08-14 14:35:51,106 INFO L413 NwaCegarLoop]: 288 mSDtfsCounter, 473 mSDsluCounter, 1080 mSDsCounter, 0 mSdLazyCounter, 257 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 474 SdHoareTripleChecker+Valid, 1368 SdHoareTripleChecker+Invalid, 258 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 257 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-08-14 14:35:51,106 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [474 Valid, 1368 Invalid, 258 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 257 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-08-14 14:35:51,127 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28648 states. [2024-08-14 14:35:51,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28648 to 25816. [2024-08-14 14:35:51,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25816 states, 25387 states have (on average 1.5278685941623666) internal successors, (38788), 25454 states have internal predecessors, (38788), 401 states have call successors, (401), 28 states have call predecessors, (401), 27 states have return successors, (399), 333 states have call predecessors, (399), 399 states have call successors, (399) [2024-08-14 14:35:51,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25816 states to 25816 states and 39588 transitions. [2024-08-14 14:35:51,437 INFO L78 Accepts]: Start accepts. Automaton has 25816 states and 39588 transitions. Word has length 1057 [2024-08-14 14:35:51,438 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-08-14 14:35:51,438 INFO L495 AbstractCegarLoop]: Abstraction has 25816 states and 39588 transitions. [2024-08-14 14:35:51,438 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 58.857142857142854) internal successors, (412), 7 states have internal predecessors, (412), 4 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (9), 4 states have call predecessors, (9), 4 states have call successors, (9) [2024-08-14 14:35:51,438 INFO L276 IsEmpty]: Start isEmpty. Operand 25816 states and 39588 transitions. [2024-08-14 14:35:51,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1058 [2024-08-14 14:35:51,463 INFO L187 NwaCegarLoop]: Found error trace [2024-08-14 14:35:51,463 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, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-08-14 14:35:51,463 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2024-08-14 14:35:51,464 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-08-14 14:35:51,464 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-14 14:35:51,464 INFO L85 PathProgramCache]: Analyzing trace with hash -686567712, now seen corresponding path program 1 times [2024-08-14 14:35:51,464 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-14 14:35:51,464 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1877941900] [2024-08-14 14:35:51,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-14 14:35:51,464 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-14 14:36:03,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:36:04,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-08-14 14:36:04,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:36:04,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-08-14 14:36:04,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:36:04,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-08-14 14:36:04,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:36:04,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2024-08-14 14:36:04,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:36:04,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2024-08-14 14:36:04,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:36:04,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2024-08-14 14:36:04,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:36:04,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2024-08-14 14:36:04,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:36:04,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 334 [2024-08-14 14:36:04,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:36:04,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 350 [2024-08-14 14:36:04,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:36:04,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 440 [2024-08-14 14:36:04,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:36:04,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 487 [2024-08-14 14:36:04,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:36:04,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 503 [2024-08-14 14:36:04,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:36:04,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 593 [2024-08-14 14:36:04,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:36:04,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 641 [2024-08-14 14:36:04,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:36:04,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 657 [2024-08-14 14:36:04,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:36:04,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 747 [2024-08-14 14:36:04,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:36:04,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 794 [2024-08-14 14:36:04,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:36:04,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 810 [2024-08-14 14:36:04,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:36:04,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 900 [2024-08-14 14:36:04,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:36:04,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 947 [2024-08-14 14:36:04,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:36:04,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 963 [2024-08-14 14:36:04,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:36:04,996 INFO L134 CoverageAnalysis]: Checked inductivity of 3172 backedges. 1098 proven. 12 refuted. 0 times theorem prover too weak. 2062 trivial. 0 not checked. [2024-08-14 14:36:04,996 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-14 14:36:04,996 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1877941900] [2024-08-14 14:36:04,996 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1877941900] provided 0 perfect and 1 imperfect interpolant sequences [2024-08-14 14:36:04,996 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1781733594] [2024-08-14 14:36:04,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-14 14:36:04,997 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-14 14:36:04,997 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-08-14 14:36:04,999 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-08-14 14:36:05,001 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-08-14 14:36:08,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:36:08,854 INFO L262 TraceCheckSpWp]: Trace formula consists of 5446 conjuncts, 53 conjunts are in the unsatisfiable core [2024-08-14 14:36:08,865 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-08-14 14:36:09,579 INFO L134 CoverageAnalysis]: Checked inductivity of 3172 backedges. 1234 proven. 0 refuted. 0 times theorem prover too weak. 1938 trivial. 0 not checked. [2024-08-14 14:36:09,579 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-08-14 14:36:09,580 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1781733594] provided 1 perfect and 0 imperfect interpolant sequences [2024-08-14 14:36:09,580 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-08-14 14:36:09,580 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [6] total 10 [2024-08-14 14:36:09,580 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [427507322] [2024-08-14 14:36:09,580 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-08-14 14:36:09,581 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-08-14 14:36:09,581 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-14 14:36:09,581 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-08-14 14:36:09,581 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2024-08-14 14:36:09,582 INFO L87 Difference]: Start difference. First operand 25816 states and 39588 transitions. Second operand has 7 states, 7 states have (on average 46.857142857142854) internal successors, (328), 7 states have internal predecessors, (328), 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) [2024-08-14 14:36:09,685 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-08-14 14:36:09,685 INFO L93 Difference]: Finished difference Result 25816 states and 39496 transitions. [2024-08-14 14:36:09,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-08-14 14:36:09,686 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 46.857142857142854) internal successors, (328), 7 states have internal predecessors, (328), 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 1057 [2024-08-14 14:36:09,686 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-08-14 14:36:09,723 INFO L225 Difference]: With dead ends: 25816 [2024-08-14 14:36:09,724 INFO L226 Difference]: Without dead ends: 25816 [2024-08-14 14:36:09,724 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1104 GetRequests, 1096 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2024-08-14 14:36:09,724 INFO L413 NwaCegarLoop]: 326 mSDtfsCounter, 150 mSDsluCounter, 1277 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 150 SdHoareTripleChecker+Valid, 1603 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-08-14 14:36:09,724 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [150 Valid, 1603 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-08-14 14:36:09,743 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25816 states. [2024-08-14 14:36:09,957 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25816 to 25816. [2024-08-14 14:36:09,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25816 states, 25387 states have (on average 1.5242446921652815) internal successors, (38696), 25454 states have internal predecessors, (38696), 401 states have call successors, (401), 28 states have call predecessors, (401), 27 states have return successors, (399), 333 states have call predecessors, (399), 399 states have call successors, (399) [2024-08-14 14:36:10,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25816 states to 25816 states and 39496 transitions. [2024-08-14 14:36:10,020 INFO L78 Accepts]: Start accepts. Automaton has 25816 states and 39496 transitions. Word has length 1057 [2024-08-14 14:36:10,021 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-08-14 14:36:10,021 INFO L495 AbstractCegarLoop]: Abstraction has 25816 states and 39496 transitions. [2024-08-14 14:36:10,021 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 46.857142857142854) internal successors, (328), 7 states have internal predecessors, (328), 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) [2024-08-14 14:36:10,021 INFO L276 IsEmpty]: Start isEmpty. Operand 25816 states and 39496 transitions. [2024-08-14 14:36:10,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1058 [2024-08-14 14:36:10,047 INFO L187 NwaCegarLoop]: Found error trace [2024-08-14 14:36:10,047 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, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-08-14 14:36:10,083 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2024-08-14 14:36:10,247 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable35 [2024-08-14 14:36:10,248 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-08-14 14:36:10,248 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-14 14:36:10,248 INFO L85 PathProgramCache]: Analyzing trace with hash 89246946, now seen corresponding path program 1 times [2024-08-14 14:36:10,249 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-14 14:36:10,249 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [501509839] [2024-08-14 14:36:10,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-14 14:36:10,249 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-14 14:36:27,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:36:30,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-08-14 14:36:30,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:36:30,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-08-14 14:36:30,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:36:30,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-08-14 14:36:30,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:36:30,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2024-08-14 14:36:30,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:36:30,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2024-08-14 14:36:30,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:36:30,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2024-08-14 14:36:30,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:36:30,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2024-08-14 14:36:30,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:36:30,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 334 [2024-08-14 14:36:30,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:36:30,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 350 [2024-08-14 14:36:30,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:36:30,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 440 [2024-08-14 14:36:30,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:36:30,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 487 [2024-08-14 14:36:30,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:36:30,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 503 [2024-08-14 14:36:30,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:36:30,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 593 [2024-08-14 14:36:30,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:36:30,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 641 [2024-08-14 14:36:30,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:36:30,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 657 [2024-08-14 14:36:30,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:36:30,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 747 [2024-08-14 14:36:30,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:36:30,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 794 [2024-08-14 14:36:30,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:36:30,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 810 [2024-08-14 14:36:30,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:36:30,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 900 [2024-08-14 14:36:30,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:36:30,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 947 [2024-08-14 14:36:30,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:36:30,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 963 [2024-08-14 14:36:30,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:36:30,117 INFO L134 CoverageAnalysis]: Checked inductivity of 3172 backedges. 1082 proven. 42 refuted. 0 times theorem prover too weak. 2048 trivial. 0 not checked. [2024-08-14 14:36:30,117 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-14 14:36:30,117 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [501509839] [2024-08-14 14:36:30,117 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [501509839] provided 0 perfect and 1 imperfect interpolant sequences [2024-08-14 14:36:30,117 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1967688863] [2024-08-14 14:36:30,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-14 14:36:30,118 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-14 14:36:30,118 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-08-14 14:36:30,119 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-08-14 14:36:30,120 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-08-14 14:36:34,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:36:34,290 INFO L262 TraceCheckSpWp]: Trace formula consists of 5444 conjuncts, 63 conjunts are in the unsatisfiable core [2024-08-14 14:36:34,300 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-08-14 14:36:34,611 INFO L134 CoverageAnalysis]: Checked inductivity of 3172 backedges. 1233 proven. 374 refuted. 0 times theorem prover too weak. 1565 trivial. 0 not checked. [2024-08-14 14:36:34,611 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-08-14 14:36:34,808 INFO L134 CoverageAnalysis]: Checked inductivity of 3172 backedges. 1117 proven. 0 refuted. 0 times theorem prover too weak. 2055 trivial. 0 not checked. [2024-08-14 14:36:34,808 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1967688863] provided 1 perfect and 1 imperfect interpolant sequences [2024-08-14 14:36:34,808 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-08-14 14:36:34,809 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [8, 14] total 25 [2024-08-14 14:36:34,809 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [29616861] [2024-08-14 14:36:34,809 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-08-14 14:36:34,809 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-08-14 14:36:34,809 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-14 14:36:34,810 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-08-14 14:36:34,810 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=532, Unknown=0, NotChecked=0, Total=600 [2024-08-14 14:36:34,810 INFO L87 Difference]: Start difference. First operand 25816 states and 39496 transitions. Second operand has 7 states, 7 states have (on average 46.285714285714285) internal successors, (324), 7 states have internal predecessors, (324), 2 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-08-14 14:36:34,902 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-08-14 14:36:34,902 INFO L93 Difference]: Finished difference Result 25972 states and 39560 transitions. [2024-08-14 14:36:34,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-08-14 14:36:34,903 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 46.285714285714285) internal successors, (324), 7 states have internal predecessors, (324), 2 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 1057 [2024-08-14 14:36:34,903 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-08-14 14:36:34,931 INFO L225 Difference]: With dead ends: 25972 [2024-08-14 14:36:34,931 INFO L226 Difference]: Without dead ends: 25972 [2024-08-14 14:36:34,932 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2167 GetRequests, 2144 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=68, Invalid=532, Unknown=0, NotChecked=0, Total=600 [2024-08-14 14:36:34,932 INFO L413 NwaCegarLoop]: 331 mSDtfsCounter, 8 mSDsluCounter, 1277 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 1608 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-08-14 14:36:34,932 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 1608 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-08-14 14:36:34,947 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25972 states. [2024-08-14 14:36:35,128 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25972 to 25972. [2024-08-14 14:36:35,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25972 states, 25543 states have (on average 1.517441177622049) internal successors, (38760), 25610 states have internal predecessors, (38760), 401 states have call successors, (401), 28 states have call predecessors, (401), 27 states have return successors, (399), 333 states have call predecessors, (399), 399 states have call successors, (399) [2024-08-14 14:36:35,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25972 states to 25972 states and 39560 transitions. [2024-08-14 14:36:35,183 INFO L78 Accepts]: Start accepts. Automaton has 25972 states and 39560 transitions. Word has length 1057 [2024-08-14 14:36:35,184 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-08-14 14:36:35,184 INFO L495 AbstractCegarLoop]: Abstraction has 25972 states and 39560 transitions. [2024-08-14 14:36:35,184 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 46.285714285714285) internal successors, (324), 7 states have internal predecessors, (324), 2 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-08-14 14:36:35,184 INFO L276 IsEmpty]: Start isEmpty. Operand 25972 states and 39560 transitions. [2024-08-14 14:36:35,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1060 [2024-08-14 14:36:35,208 INFO L187 NwaCegarLoop]: Found error trace [2024-08-14 14:36:35,208 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, 6, 6, 6, 6, 6, 6, 6, 6, 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, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-08-14 14:36:35,245 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2024-08-14 14:36:35,409 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable36 [2024-08-14 14:36:35,409 INFO L420 AbstractCegarLoop]: === Iteration 38 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-08-14 14:36:35,409 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-14 14:36:35,410 INFO L85 PathProgramCache]: Analyzing trace with hash 328635622, now seen corresponding path program 1 times [2024-08-14 14:36:35,410 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-14 14:36:35,410 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1885175408] [2024-08-14 14:36:35,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-14 14:36:35,410 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-14 14:36:36,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:36:37,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-08-14 14:36:37,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:36:37,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-08-14 14:36:37,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:36:37,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-08-14 14:36:37,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:36:37,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2024-08-14 14:36:37,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:36:37,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2024-08-14 14:36:37,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:36:38,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2024-08-14 14:36:38,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:36:38,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2024-08-14 14:36:38,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:36:38,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 334 [2024-08-14 14:36:38,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:36:38,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 350 [2024-08-14 14:36:38,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:36:38,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 441 [2024-08-14 14:36:38,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:36:38,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 488 [2024-08-14 14:36:38,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:36:38,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 504 [2024-08-14 14:36:38,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:36:38,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 594 [2024-08-14 14:36:38,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:36:38,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 642 [2024-08-14 14:36:38,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:36:38,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 658 [2024-08-14 14:36:38,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:36:38,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 748 [2024-08-14 14:36:38,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:36:38,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 795 [2024-08-14 14:36:38,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:36:38,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 811 [2024-08-14 14:36:38,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:36:38,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 902 [2024-08-14 14:36:38,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:36:38,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 949 [2024-08-14 14:36:38,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:36:38,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 965 [2024-08-14 14:36:38,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:36:38,015 INFO L134 CoverageAnalysis]: Checked inductivity of 3173 backedges. 1597 proven. 0 refuted. 0 times theorem prover too weak. 1576 trivial. 0 not checked. [2024-08-14 14:36:38,015 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-14 14:36:38,015 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1885175408] [2024-08-14 14:36:38,015 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1885175408] provided 1 perfect and 0 imperfect interpolant sequences [2024-08-14 14:36:38,015 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-08-14 14:36:38,015 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-08-14 14:36:38,015 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [43153688] [2024-08-14 14:36:38,015 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-08-14 14:36:38,016 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-08-14 14:36:38,016 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-14 14:36:38,017 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-08-14 14:36:38,017 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-08-14 14:36:38,018 INFO L87 Difference]: Start difference. First operand 25972 states and 39560 transitions. Second operand has 6 states, 6 states have (on average 75.66666666666667) internal successors, (454), 6 states have internal predecessors, (454), 3 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2024-08-14 14:36:38,141 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-08-14 14:36:38,142 INFO L93 Difference]: Finished difference Result 27346 states and 41172 transitions. [2024-08-14 14:36:38,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-08-14 14:36:38,143 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 75.66666666666667) internal successors, (454), 6 states have internal predecessors, (454), 3 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) Word has length 1059 [2024-08-14 14:36:38,143 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-08-14 14:36:38,170 INFO L225 Difference]: With dead ends: 27346 [2024-08-14 14:36:38,170 INFO L226 Difference]: Without dead ends: 27346 [2024-08-14 14:36:38,170 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 46 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-08-14 14:36:38,171 INFO L413 NwaCegarLoop]: 320 mSDtfsCounter, 172 mSDsluCounter, 934 mSDsCounter, 0 mSdLazyCounter, 103 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 172 SdHoareTripleChecker+Valid, 1254 SdHoareTripleChecker+Invalid, 104 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 103 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-08-14 14:36:38,171 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [172 Valid, 1254 Invalid, 104 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 103 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-08-14 14:36:38,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27346 states. [2024-08-14 14:36:38,361 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27346 to 27346. [2024-08-14 14:36:38,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27346 states, 26917 states have (on average 1.4998699706505183) internal successors, (40372), 26984 states have internal predecessors, (40372), 401 states have call successors, (401), 28 states have call predecessors, (401), 27 states have return successors, (399), 333 states have call predecessors, (399), 399 states have call successors, (399) [2024-08-14 14:36:38,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27346 states to 27346 states and 41172 transitions. [2024-08-14 14:36:38,413 INFO L78 Accepts]: Start accepts. Automaton has 27346 states and 41172 transitions. Word has length 1059 [2024-08-14 14:36:38,413 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-08-14 14:36:38,413 INFO L495 AbstractCegarLoop]: Abstraction has 27346 states and 41172 transitions. [2024-08-14 14:36:38,413 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 75.66666666666667) internal successors, (454), 6 states have internal predecessors, (454), 3 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2024-08-14 14:36:38,413 INFO L276 IsEmpty]: Start isEmpty. Operand 27346 states and 41172 transitions. [2024-08-14 14:36:38,439 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1060 [2024-08-14 14:36:38,439 INFO L187 NwaCegarLoop]: Found error trace [2024-08-14 14:36:38,440 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, 6, 6, 6, 6, 6, 6, 6, 6, 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, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-08-14 14:36:38,440 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2024-08-14 14:36:38,440 INFO L420 AbstractCegarLoop]: === Iteration 39 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-08-14 14:36:38,440 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-14 14:36:38,440 INFO L85 PathProgramCache]: Analyzing trace with hash 338138758, now seen corresponding path program 1 times [2024-08-14 14:36:38,441 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-14 14:36:38,441 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [903168025] [2024-08-14 14:36:38,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-14 14:36:38,441 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-14 14:36:52,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:36:54,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-08-14 14:36:54,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:36:54,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-08-14 14:36:54,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:36:54,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-08-14 14:36:54,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:36:54,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2024-08-14 14:36:54,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:36:54,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2024-08-14 14:36:54,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:36:54,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2024-08-14 14:36:54,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:36:54,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2024-08-14 14:36:54,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:36:54,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 334 [2024-08-14 14:36:54,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:36:54,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 350 [2024-08-14 14:36:54,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:36:54,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 441 [2024-08-14 14:36:54,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:36:54,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 488 [2024-08-14 14:36:54,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:36:54,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 504 [2024-08-14 14:36:54,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:36:54,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 594 [2024-08-14 14:36:54,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:36:54,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 642 [2024-08-14 14:36:54,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:36:54,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 658 [2024-08-14 14:36:54,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:36:54,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 748 [2024-08-14 14:36:54,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:36:54,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 795 [2024-08-14 14:36:54,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:36:54,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 811 [2024-08-14 14:36:54,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:36:54,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 902 [2024-08-14 14:36:54,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:36:54,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 949 [2024-08-14 14:36:54,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:36:54,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 965 [2024-08-14 14:36:54,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:36:54,421 INFO L134 CoverageAnalysis]: Checked inductivity of 3173 backedges. 1435 proven. 0 refuted. 0 times theorem prover too weak. 1738 trivial. 0 not checked. [2024-08-14 14:36:54,422 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-14 14:36:54,422 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [903168025] [2024-08-14 14:36:54,422 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [903168025] provided 1 perfect and 0 imperfect interpolant sequences [2024-08-14 14:36:54,422 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-08-14 14:36:54,422 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-08-14 14:36:54,422 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1050841845] [2024-08-14 14:36:54,422 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-08-14 14:36:54,423 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-08-14 14:36:54,423 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-14 14:36:54,423 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-08-14 14:36:54,423 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-08-14 14:36:54,423 INFO L87 Difference]: Start difference. First operand 27346 states and 41172 transitions. Second operand has 7 states, 7 states have (on average 47.0) internal successors, (329), 7 states have internal predecessors, (329), 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) [2024-08-14 14:36:54,528 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-08-14 14:36:54,528 INFO L93 Difference]: Finished difference Result 27580 states and 41392 transitions. [2024-08-14 14:36:54,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-08-14 14:36:54,529 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 47.0) internal successors, (329), 7 states have internal predecessors, (329), 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 1059 [2024-08-14 14:36:54,529 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-08-14 14:36:54,555 INFO L225 Difference]: With dead ends: 27580 [2024-08-14 14:36:54,555 INFO L226 Difference]: Without dead ends: 27580 [2024-08-14 14:36:54,556 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2024-08-14 14:36:54,556 INFO L413 NwaCegarLoop]: 325 mSDtfsCounter, 155 mSDsluCounter, 1229 mSDsCounter, 0 mSdLazyCounter, 76 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 155 SdHoareTripleChecker+Valid, 1554 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 76 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-08-14 14:36:54,556 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [155 Valid, 1554 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 76 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-08-14 14:36:54,568 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27580 states. [2024-08-14 14:36:54,751 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27580 to 27502. [2024-08-14 14:36:54,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27502 states, 27073 states have (on average 1.4935914010268534) internal successors, (40436), 27140 states have internal predecessors, (40436), 401 states have call successors, (401), 28 states have call predecessors, (401), 27 states have return successors, (399), 333 states have call predecessors, (399), 399 states have call successors, (399) [2024-08-14 14:36:54,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27502 states to 27502 states and 41236 transitions. [2024-08-14 14:36:54,803 INFO L78 Accepts]: Start accepts. Automaton has 27502 states and 41236 transitions. Word has length 1059 [2024-08-14 14:36:54,804 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-08-14 14:36:54,804 INFO L495 AbstractCegarLoop]: Abstraction has 27502 states and 41236 transitions. [2024-08-14 14:36:54,804 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 47.0) internal successors, (329), 7 states have internal predecessors, (329), 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) [2024-08-14 14:36:54,804 INFO L276 IsEmpty]: Start isEmpty. Operand 27502 states and 41236 transitions. [2024-08-14 14:36:54,831 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1060 [2024-08-14 14:36:54,831 INFO L187 NwaCegarLoop]: Found error trace [2024-08-14 14:36:54,831 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, 5, 5, 5, 5, 5, 5, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-08-14 14:36:54,831 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2024-08-14 14:36:54,831 INFO L420 AbstractCegarLoop]: === Iteration 40 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-08-14 14:36:54,832 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-14 14:36:54,832 INFO L85 PathProgramCache]: Analyzing trace with hash -755253658, now seen corresponding path program 1 times [2024-08-14 14:36:54,832 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-14 14:36:54,832 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [841691886] [2024-08-14 14:36:54,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-14 14:36:54,832 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-14 14:36:55,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:36:56,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-08-14 14:36:56,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:36:56,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-08-14 14:36:56,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:36:56,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-08-14 14:36:56,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:36:56,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2024-08-14 14:36:56,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:36:56,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2024-08-14 14:36:56,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:36:56,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2024-08-14 14:36:56,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:36:56,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2024-08-14 14:36:56,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:36:56,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 335 [2024-08-14 14:36:56,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:36:56,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 351 [2024-08-14 14:36:56,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:36:56,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 441 [2024-08-14 14:36:56,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:36:56,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 488 [2024-08-14 14:36:56,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:36:56,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 504 [2024-08-14 14:36:56,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:36:56,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 594 [2024-08-14 14:36:56,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:36:56,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 642 [2024-08-14 14:36:56,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:36:56,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 658 [2024-08-14 14:36:56,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:36:56,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 748 [2024-08-14 14:36:56,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:36:56,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 796 [2024-08-14 14:36:56,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:36:56,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 812 [2024-08-14 14:36:56,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:36:56,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 902 [2024-08-14 14:36:56,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:36:56,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 949 [2024-08-14 14:36:56,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:36:56,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 965 [2024-08-14 14:36:56,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:36:56,664 INFO L134 CoverageAnalysis]: Checked inductivity of 3183 backedges. 1845 proven. 0 refuted. 0 times theorem prover too weak. 1338 trivial. 0 not checked. [2024-08-14 14:36:56,664 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-14 14:36:56,664 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [841691886] [2024-08-14 14:36:56,664 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [841691886] provided 1 perfect and 0 imperfect interpolant sequences [2024-08-14 14:36:56,664 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-08-14 14:36:56,664 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-08-14 14:36:56,664 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1024849580] [2024-08-14 14:36:56,664 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-08-14 14:36:56,665 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-08-14 14:36:56,665 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-14 14:36:56,665 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-08-14 14:36:56,665 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2024-08-14 14:36:56,665 INFO L87 Difference]: Start difference. First operand 27502 states and 41236 transitions. Second operand has 7 states, 7 states have (on average 63.285714285714285) internal successors, (443), 7 states have internal predecessors, (443), 4 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) [2024-08-14 14:36:56,916 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-08-14 14:36:56,916 INFO L93 Difference]: Finished difference Result 43272 states and 64657 transitions. [2024-08-14 14:36:56,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-08-14 14:36:56,917 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 63.285714285714285) internal successors, (443), 7 states have internal predecessors, (443), 4 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) Word has length 1059 [2024-08-14 14:36:56,917 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-08-14 14:36:56,963 INFO L225 Difference]: With dead ends: 43272 [2024-08-14 14:36:56,963 INFO L226 Difference]: Without dead ends: 43272 [2024-08-14 14:36:56,963 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2024-08-14 14:36:56,964 INFO L413 NwaCegarLoop]: 531 mSDtfsCounter, 440 mSDsluCounter, 1311 mSDsCounter, 0 mSdLazyCounter, 300 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 440 SdHoareTripleChecker+Valid, 1842 SdHoareTripleChecker+Invalid, 301 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 300 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-08-14 14:36:56,964 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [440 Valid, 1842 Invalid, 301 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 300 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-08-14 14:36:56,985 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43272 states. [2024-08-14 14:36:57,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43272 to 43207. [2024-08-14 14:36:57,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43207 states, 42509 states have (on average 1.4866734103366346) internal successors, (63197), 42633 states have internal predecessors, (63197), 670 states have call successors, (670), 28 states have call predecessors, (670), 27 states have return successors, (668), 545 states have call predecessors, (668), 668 states have call successors, (668) [2024-08-14 14:36:57,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43207 states to 43207 states and 64535 transitions. [2024-08-14 14:36:57,338 INFO L78 Accepts]: Start accepts. Automaton has 43207 states and 64535 transitions. Word has length 1059 [2024-08-14 14:36:57,339 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-08-14 14:36:57,339 INFO L495 AbstractCegarLoop]: Abstraction has 43207 states and 64535 transitions. [2024-08-14 14:36:57,339 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 63.285714285714285) internal successors, (443), 7 states have internal predecessors, (443), 4 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) [2024-08-14 14:36:57,339 INFO L276 IsEmpty]: Start isEmpty. Operand 43207 states and 64535 transitions. [2024-08-14 14:36:57,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1060 [2024-08-14 14:36:57,375 INFO L187 NwaCegarLoop]: Found error trace [2024-08-14 14:36:57,376 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, 5, 5, 5, 5, 5, 5, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-08-14 14:36:57,376 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2024-08-14 14:36:57,376 INFO L420 AbstractCegarLoop]: === Iteration 41 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-08-14 14:36:57,376 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-14 14:36:57,376 INFO L85 PathProgramCache]: Analyzing trace with hash 1804716230, now seen corresponding path program 1 times [2024-08-14 14:36:57,376 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-14 14:36:57,376 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [517369186] [2024-08-14 14:36:57,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-14 14:36:57,377 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-14 14:37:03,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:37:06,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-08-14 14:37:06,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:37:06,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-08-14 14:37:06,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:37:06,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-08-14 14:37:06,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:37:06,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2024-08-14 14:37:06,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:37:06,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2024-08-14 14:37:06,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:37:06,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2024-08-14 14:37:06,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:37:06,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2024-08-14 14:37:06,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:37:06,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 335 [2024-08-14 14:37:06,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:37:06,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 351 [2024-08-14 14:37:06,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:37:06,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 441 [2024-08-14 14:37:06,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:37:06,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 488 [2024-08-14 14:37:06,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:37:06,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 504 [2024-08-14 14:37:06,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:37:06,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 594 [2024-08-14 14:37:06,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:37:06,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 642 [2024-08-14 14:37:06,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:37:06,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 658 [2024-08-14 14:37:06,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:37:06,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 748 [2024-08-14 14:37:06,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:37:06,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 796 [2024-08-14 14:37:06,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:37:06,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 812 [2024-08-14 14:37:06,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:37:06,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 902 [2024-08-14 14:37:06,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:37:06,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 949 [2024-08-14 14:37:06,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:37:06,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 965 [2024-08-14 14:37:06,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:37:06,590 INFO L134 CoverageAnalysis]: Checked inductivity of 3183 backedges. 1554 proven. 148 refuted. 0 times theorem prover too weak. 1481 trivial. 0 not checked. [2024-08-14 14:37:06,590 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-14 14:37:06,590 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [517369186] [2024-08-14 14:37:06,590 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [517369186] provided 0 perfect and 1 imperfect interpolant sequences [2024-08-14 14:37:06,590 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [375338532] [2024-08-14 14:37:06,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-14 14:37:06,590 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-14 14:37:06,591 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-08-14 14:37:06,591 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-08-14 14:37:06,592 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-08-14 14:37:12,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:37:12,427 INFO L262 TraceCheckSpWp]: Trace formula consists of 5446 conjuncts, 91 conjunts are in the unsatisfiable core [2024-08-14 14:37:12,440 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-08-14 14:37:14,776 INFO L134 CoverageAnalysis]: Checked inductivity of 3183 backedges. 1873 proven. 10 refuted. 0 times theorem prover too weak. 1300 trivial. 0 not checked. [2024-08-14 14:37:14,777 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-08-14 14:37:20,831 INFO L134 CoverageAnalysis]: Checked inductivity of 3183 backedges. 2120 proven. 214 refuted. 0 times theorem prover too weak. 849 trivial. 0 not checked. [2024-08-14 14:37:20,831 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [375338532] provided 0 perfect and 2 imperfect interpolant sequences [2024-08-14 14:37:20,831 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-08-14 14:37:20,831 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 13, 12] total 28 [2024-08-14 14:37:20,832 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1396747693] [2024-08-14 14:37:20,832 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-08-14 14:37:20,833 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2024-08-14 14:37:20,833 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-14 14:37:20,834 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2024-08-14 14:37:20,834 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=143, Invalid=613, Unknown=0, NotChecked=0, Total=756 [2024-08-14 14:37:20,834 INFO L87 Difference]: Start difference. First operand 43207 states and 64535 transitions. Second operand has 28 states, 28 states have (on average 40.42857142857143) internal successors, (1132), 28 states have internal predecessors, (1132), 10 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (25), 10 states have call predecessors, (25), 10 states have call successors, (25) [2024-08-14 14:37:22,290 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-08-14 14:37:22,291 INFO L93 Difference]: Finished difference Result 81788 states and 122180 transitions. [2024-08-14 14:37:22,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-08-14 14:37:22,291 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 40.42857142857143) internal successors, (1132), 28 states have internal predecessors, (1132), 10 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (25), 10 states have call predecessors, (25), 10 states have call successors, (25) Word has length 1059 [2024-08-14 14:37:22,292 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-08-14 14:37:22,368 INFO L225 Difference]: With dead ends: 81788 [2024-08-14 14:37:22,368 INFO L226 Difference]: Without dead ends: 79148 [2024-08-14 14:37:22,368 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2191 GetRequests, 2144 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 410 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=382, Invalid=1970, Unknown=0, NotChecked=0, Total=2352 [2024-08-14 14:37:22,369 INFO L413 NwaCegarLoop]: 319 mSDtfsCounter, 1278 mSDsluCounter, 3285 mSDsCounter, 0 mSdLazyCounter, 1301 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1278 SdHoareTripleChecker+Valid, 3604 SdHoareTripleChecker+Invalid, 1320 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 1301 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-08-14 14:37:22,369 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1278 Valid, 3604 Invalid, 1320 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 1301 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-08-14 14:37:22,410 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79148 states. [2024-08-14 14:37:22,928 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79148 to 51150. [2024-08-14 14:37:22,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51150 states, 50433 states have (on average 1.4923165387742152) internal successors, (75262), 50545 states have internal predecessors, (75262), 689 states have call successors, (689), 28 states have call predecessors, (689), 27 states have return successors, (687), 576 states have call predecessors, (687), 687 states have call successors, (687) [2024-08-14 14:37:23,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51150 states to 51150 states and 76638 transitions. [2024-08-14 14:37:23,024 INFO L78 Accepts]: Start accepts. Automaton has 51150 states and 76638 transitions. Word has length 1059 [2024-08-14 14:37:23,025 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-08-14 14:37:23,025 INFO L495 AbstractCegarLoop]: Abstraction has 51150 states and 76638 transitions. [2024-08-14 14:37:23,025 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 40.42857142857143) internal successors, (1132), 28 states have internal predecessors, (1132), 10 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (25), 10 states have call predecessors, (25), 10 states have call successors, (25) [2024-08-14 14:37:23,025 INFO L276 IsEmpty]: Start isEmpty. Operand 51150 states and 76638 transitions. [2024-08-14 14:37:23,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1060 [2024-08-14 14:37:23,067 INFO L187 NwaCegarLoop]: Found error trace [2024-08-14 14:37:23,067 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, 5, 4, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-08-14 14:37:23,106 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2024-08-14 14:37:23,268 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable40 [2024-08-14 14:37:23,268 INFO L420 AbstractCegarLoop]: === Iteration 42 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-08-14 14:37:23,270 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-14 14:37:23,270 INFO L85 PathProgramCache]: Analyzing trace with hash -2040990200, now seen corresponding path program 1 times [2024-08-14 14:37:23,270 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-14 14:37:23,270 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2047071327] [2024-08-14 14:37:23,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-14 14:37:23,270 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-14 14:37:44,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:37:52,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-08-14 14:37:52,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:37:52,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-08-14 14:37:52,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:37:52,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-08-14 14:37:52,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:37:52,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2024-08-14 14:37:52,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:37:52,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2024-08-14 14:37:52,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:37:52,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2024-08-14 14:37:52,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:37:52,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2024-08-14 14:37:52,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:37:52,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 334 [2024-08-14 14:37:52,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:37:52,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 350 [2024-08-14 14:37:52,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:37:52,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 440 [2024-08-14 14:37:52,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:37:52,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 488 [2024-08-14 14:37:52,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:37:52,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 504 [2024-08-14 14:37:52,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:37:52,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 594 [2024-08-14 14:37:52,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:37:52,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 642 [2024-08-14 14:37:52,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:37:52,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 658 [2024-08-14 14:37:52,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:37:52,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 748 [2024-08-14 14:37:52,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:37:52,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 795 [2024-08-14 14:37:52,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:37:52,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 811 [2024-08-14 14:37:52,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:37:52,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 901 [2024-08-14 14:37:52,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:37:52,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 949 [2024-08-14 14:37:52,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:37:52,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 965 [2024-08-14 14:37:52,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:37:52,561 INFO L134 CoverageAnalysis]: Checked inductivity of 3211 backedges. 2133 proven. 153 refuted. 0 times theorem prover too weak. 925 trivial. 0 not checked. [2024-08-14 14:37:52,561 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-14 14:37:52,561 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2047071327] [2024-08-14 14:37:52,561 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2047071327] provided 0 perfect and 1 imperfect interpolant sequences [2024-08-14 14:37:52,561 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [756593285] [2024-08-14 14:37:52,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-14 14:37:52,561 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-14 14:37:52,562 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-08-14 14:37:52,562 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-08-14 14:37:52,564 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-08-14 14:38:05,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:38:05,669 INFO L262 TraceCheckSpWp]: Trace formula consists of 5456 conjuncts, 169 conjunts are in the unsatisfiable core [2024-08-14 14:38:05,683 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-08-14 14:38:10,533 INFO L134 CoverageAnalysis]: Checked inductivity of 3211 backedges. 1893 proven. 726 refuted. 0 times theorem prover too weak. 592 trivial. 0 not checked. [2024-08-14 14:38:10,533 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-08-14 14:38:19,991 INFO L134 CoverageAnalysis]: Checked inductivity of 3211 backedges. 1695 proven. 599 refuted. 0 times theorem prover too weak. 917 trivial. 0 not checked. [2024-08-14 14:38:19,991 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [756593285] provided 0 perfect and 2 imperfect interpolant sequences [2024-08-14 14:38:19,991 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-08-14 14:38:19,992 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 25, 30] total 69 [2024-08-14 14:38:19,992 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [963076160] [2024-08-14 14:38:19,992 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-08-14 14:38:19,993 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 69 states [2024-08-14 14:38:19,993 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-14 14:38:19,994 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 69 interpolants. [2024-08-14 14:38:19,995 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=537, Invalid=4155, Unknown=0, NotChecked=0, Total=4692 [2024-08-14 14:38:19,995 INFO L87 Difference]: Start difference. First operand 51150 states and 76638 transitions. Second operand has 69 states, 67 states have (on average 25.253731343283583) internal successors, (1692), 68 states have internal predecessors, (1692), 17 states have call successors, (43), 3 states have call predecessors, (43), 3 states have return successors, (41), 15 states have call predecessors, (41), 16 states have call successors, (41) [2024-08-14 14:38:37,608 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-08-14 14:38:37,608 INFO L93 Difference]: Finished difference Result 153854 states and 228553 transitions. [2024-08-14 14:38:37,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 210 states. [2024-08-14 14:38:37,608 INFO L78 Accepts]: Start accepts. Automaton has has 69 states, 67 states have (on average 25.253731343283583) internal successors, (1692), 68 states have internal predecessors, (1692), 17 states have call successors, (43), 3 states have call predecessors, (43), 3 states have return successors, (41), 15 states have call predecessors, (41), 16 states have call successors, (41) Word has length 1059 [2024-08-14 14:38:37,609 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-08-14 14:38:37,750 INFO L225 Difference]: With dead ends: 153854 [2024-08-14 14:38:37,750 INFO L226 Difference]: Without dead ends: 153854 [2024-08-14 14:38:37,753 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2382 GetRequests, 2110 SyntacticMatches, 0 SemanticMatches, 272 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24462 ImplicationChecksByTransitivity, 10.4s TimeCoverageRelationStatistics Valid=7119, Invalid=67683, Unknown=0, NotChecked=0, Total=74802 [2024-08-14 14:38:37,753 INFO L413 NwaCegarLoop]: 802 mSDtfsCounter, 6808 mSDsluCounter, 30767 mSDsCounter, 0 mSdLazyCounter, 15179 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6808 SdHoareTripleChecker+Valid, 31569 SdHoareTripleChecker+Invalid, 15222 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 15179 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.9s IncrementalHoareTripleChecker+Time [2024-08-14 14:38:37,754 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6808 Valid, 31569 Invalid, 15222 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [43 Valid, 15179 Invalid, 0 Unknown, 0 Unchecked, 7.9s Time] [2024-08-14 14:38:37,828 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 153854 states. [2024-08-14 14:38:38,666 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 153854 to 80666. [2024-08-14 14:38:38,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80666 states, 79522 states have (on average 1.4910213525816756) internal successors, (118569), 79752 states have internal predecessors, (118569), 1113 states have call successors, (1113), 31 states have call predecessors, (1113), 30 states have return successors, (1111), 882 states have call predecessors, (1111), 1111 states have call successors, (1111) [2024-08-14 14:38:38,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80666 states to 80666 states and 120793 transitions. [2024-08-14 14:38:38,824 INFO L78 Accepts]: Start accepts. Automaton has 80666 states and 120793 transitions. Word has length 1059 [2024-08-14 14:38:38,825 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-08-14 14:38:38,825 INFO L495 AbstractCegarLoop]: Abstraction has 80666 states and 120793 transitions. [2024-08-14 14:38:38,825 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 69 states, 67 states have (on average 25.253731343283583) internal successors, (1692), 68 states have internal predecessors, (1692), 17 states have call successors, (43), 3 states have call predecessors, (43), 3 states have return successors, (41), 15 states have call predecessors, (41), 16 states have call successors, (41) [2024-08-14 14:38:38,825 INFO L276 IsEmpty]: Start isEmpty. Operand 80666 states and 120793 transitions. [2024-08-14 14:38:38,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1060 [2024-08-14 14:38:38,893 INFO L187 NwaCegarLoop]: Found error trace [2024-08-14 14:38:38,894 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, 5, 4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-08-14 14:38:38,937 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2024-08-14 14:38:39,094 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-14 14:38:39,094 INFO L420 AbstractCegarLoop]: === Iteration 43 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-08-14 14:38:39,095 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-14 14:38:39,095 INFO L85 PathProgramCache]: Analyzing trace with hash -547040169, now seen corresponding path program 1 times [2024-08-14 14:38:39,095 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-14 14:38:39,095 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [801127837] [2024-08-14 14:38:39,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-14 14:38:39,095 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-14 14:38:58,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:39:08,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-08-14 14:39:08,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:39:08,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-08-14 14:39:08,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:39:08,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-08-14 14:39:08,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:39:08,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2024-08-14 14:39:08,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:39:08,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2024-08-14 14:39:08,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:39:08,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2024-08-14 14:39:08,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:39:08,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2024-08-14 14:39:08,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:39:08,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 334 [2024-08-14 14:39:08,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:39:08,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 350 [2024-08-14 14:39:08,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:39:08,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 440 [2024-08-14 14:39:08,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:39:08,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 488 [2024-08-14 14:39:08,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:39:08,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 504 [2024-08-14 14:39:08,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:39:08,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 594 [2024-08-14 14:39:08,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:39:08,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 642 [2024-08-14 14:39:08,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:39:08,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 658 [2024-08-14 14:39:08,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:39:08,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 748 [2024-08-14 14:39:08,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:39:08,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 796 [2024-08-14 14:39:08,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:39:08,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 812 [2024-08-14 14:39:08,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:39:08,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 902 [2024-08-14 14:39:08,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:39:08,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 949 [2024-08-14 14:39:08,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:39:08,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 965 [2024-08-14 14:39:08,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:39:08,520 INFO L134 CoverageAnalysis]: Checked inductivity of 3211 backedges. 1172 proven. 763 refuted. 0 times theorem prover too weak. 1276 trivial. 0 not checked. [2024-08-14 14:39:08,520 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-14 14:39:08,520 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [801127837] [2024-08-14 14:39:08,520 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [801127837] provided 0 perfect and 1 imperfect interpolant sequences [2024-08-14 14:39:08,520 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [640106232] [2024-08-14 14:39:08,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-14 14:39:08,520 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-14 14:39:08,521 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-08-14 14:39:08,522 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-08-14 14:39:08,523 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2024-08-14 14:39:21,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:39:21,759 INFO L262 TraceCheckSpWp]: Trace formula consists of 5457 conjuncts, 550 conjunts are in the unsatisfiable core [2024-08-14 14:39:21,781 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-08-14 14:39:35,957 INFO L134 CoverageAnalysis]: Checked inductivity of 3211 backedges. 990 proven. 1796 refuted. 0 times theorem prover too weak. 425 trivial. 0 not checked. [2024-08-14 14:39:35,957 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-08-14 14:39:47,268 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [640106232] provided 0 perfect and 1 imperfect interpolant sequences [2024-08-14 14:39:47,269 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-08-14 14:39:47,269 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 87] total 104 [2024-08-14 14:39:47,269 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1691109918] [2024-08-14 14:39:47,269 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-08-14 14:39:47,270 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 104 states [2024-08-14 14:39:47,270 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-14 14:39:47,271 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 104 interpolants. [2024-08-14 14:39:47,272 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=797, Invalid=15459, Unknown=0, NotChecked=0, Total=16256 [2024-08-14 14:39:47,272 INFO L87 Difference]: Start difference. First operand 80666 states and 120793 transitions. Second operand has 104 states, 103 states have (on average 12.475728155339805) internal successors, (1285), 104 states have internal predecessors, (1285), 14 states have call successors, (30), 2 states have call predecessors, (30), 3 states have return successors, (28), 13 states have call predecessors, (28), 14 states have call successors, (28)