./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/recursified_nla-digbench/recursified_ps2-ll.c --full-output --witness-type correctness_witness --validate ../results/automizer-verification-files/SV-COMP24_unreach-call/recursified_ps2-ll.yml/witness-2.1.yml --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 04d6fb36 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/certificate-witnesses-artifact/automizer/data/config -Xmx15G -Xms4m -jar /storage/repos/certificate-witnesses-artifact/automizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/certificate-witnesses-artifact/automizer/data -tc /storage/repos/certificate-witnesses-artifact/automizer/config/AutomizerReachWitnessValidation.xml -i ../sv-benchmarks/c/recursified_nla-digbench/recursified_ps2-ll.c ../results/automizer-verification-files/SV-COMP24_unreach-call/recursified_ps2-ll.yml/witness-2.1.yml -s /storage/repos/certificate-witnesses-artifact/automizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --traceabstraction.positions.where.we.compute.the.hoare.annotation None --- Real Ultimate output --- This is Ultimate 0.2.4-tmp.dk.referee-eval-04d6fb3-m [2024-09-15 20:26:00,886 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-09-15 20:26:00,957 INFO L114 SettingsManager]: Loading settings from /storage/repos/certificate-witnesses-artifact/automizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-09-15 20:26:00,962 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-09-15 20:26:00,963 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-09-15 20:26:00,995 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-09-15 20:26:00,997 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-09-15 20:26:00,997 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-09-15 20:26:00,998 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-09-15 20:26:00,998 INFO L153 SettingsManager]: * Use memory slicer=true [2024-09-15 20:26:00,999 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-09-15 20:26:00,999 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-09-15 20:26:01,002 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-09-15 20:26:01,003 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-09-15 20:26:01,003 INFO L153 SettingsManager]: * Use SBE=true [2024-09-15 20:26:01,003 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-09-15 20:26:01,004 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-09-15 20:26:01,004 INFO L153 SettingsManager]: * sizeof long=4 [2024-09-15 20:26:01,007 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-09-15 20:26:01,007 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-09-15 20:26:01,007 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-09-15 20:26:01,008 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-09-15 20:26:01,008 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-09-15 20:26:01,009 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-09-15 20:26:01,009 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-09-15 20:26:01,012 INFO L153 SettingsManager]: * sizeof long double=12 [2024-09-15 20:26:01,013 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-09-15 20:26:01,013 INFO L153 SettingsManager]: * Use constant arrays=true [2024-09-15 20:26:01,013 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-09-15 20:26:01,014 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-09-15 20:26:01,014 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-09-15 20:26:01,014 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-09-15 20:26:01,014 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-15 20:26:01,015 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-09-15 20:26:01,015 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-09-15 20:26:01,015 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-09-15 20:26:01,016 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-09-15 20:26:01,016 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-09-15 20:26:01,016 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-09-15 20:26:01,016 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-09-15 20:26:01,017 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-09-15 20:26:01,018 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-09-15 20:26:01,018 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/certificate-witnesses-artifact/automizer/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> None [2024-09-15 20:26:01,359 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-09-15 20:26:01,381 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-09-15 20:26:01,385 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-09-15 20:26:01,386 INFO L270 PluginConnector]: Initializing CDTParser... [2024-09-15 20:26:01,387 INFO L274 PluginConnector]: CDTParser initialized [2024-09-15 20:26:01,388 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/automizer/../sv-benchmarks/c/recursified_nla-digbench/recursified_ps2-ll.c [2024-09-15 20:26:02,945 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-09-15 20:26:03,136 INFO L384 CDTParser]: Found 1 translation units. [2024-09-15 20:26:03,137 INFO L180 CDTParser]: Scanning /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/recursified_nla-digbench/recursified_ps2-ll.c [2024-09-15 20:26:03,156 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/certificate-witnesses-artifact/automizer/data/5a7b6997c/197b6a6a9f3a4feaa288992c7f29466f/FLAG9ac598d1b [2024-09-15 20:26:03,177 INFO L435 CDTParser]: Successfully deleted /storage/repos/certificate-witnesses-artifact/automizer/data/5a7b6997c/197b6a6a9f3a4feaa288992c7f29466f [2024-09-15 20:26:03,180 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-09-15 20:26:03,181 INFO L274 PluginConnector]: Witness Parser initialized [2024-09-15 20:26:03,182 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/automizer/../results/automizer-verification-files/SV-COMP24_unreach-call/recursified_ps2-ll.yml/witness-2.1.yml [2024-09-15 20:26:03,235 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-09-15 20:26:03,237 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-09-15 20:26:03,239 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-09-15 20:26:03,239 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-09-15 20:26:03,244 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-09-15 20:26:03,245 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.09 08:26:03" (1/2) ... [2024-09-15 20:26:03,249 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@64695c23 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 08:26:03, skipping insertion in model container [2024-09-15 20:26:03,249 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.09 08:26:03" (1/2) ... [2024-09-15 20:26:03,250 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@2fb44293 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 08:26:03, skipping insertion in model container [2024-09-15 20:26:03,250 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 15.09 08:26:03" (2/2) ... [2024-09-15 20:26:03,251 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@64695c23 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 15.09 08:26:03, skipping insertion in model container [2024-09-15 20:26:03,251 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 15.09 08:26:03" (2/2) ... [2024-09-15 20:26:03,261 INFO L93 nessWitnessExtractor]: Found the following entries in the witness: [2024-09-15 20:26:03,262 INFO L1541 ArrayList]: Function contract at [L31]: requires (1 <= \old(cond)), ensures (1 <= \old(cond)) [2024-09-15 20:26:03,281 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-09-15 20:26:03,439 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/recursified_nla-digbench/recursified_ps2-ll.c[983,996] [2024-09-15 20:26:03,460 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-15 20:26:03,471 INFO L200 MainTranslator]: Completed pre-run Start Parsing Global Start Parsing Global [2024-09-15 20:26:03,509 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/recursified_nla-digbench/recursified_ps2-ll.c[983,996] [2024-09-15 20:26:03,517 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-15 20:26:03,534 INFO L204 MainTranslator]: Completed translation [2024-09-15 20:26:03,535 INFO L201 PluginConnector]: Adding new model witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 15.09 08:26:03 WrapperNode [2024-09-15 20:26:03,536 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-09-15 20:26:03,537 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-09-15 20:26:03,537 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-09-15 20:26:03,538 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-09-15 20:26:03,544 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 15.09 08:26:03" (1/1) ... [2024-09-15 20:26:03,551 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 15.09 08:26:03" (1/1) ... [2024-09-15 20:26:03,567 INFO L138 Inliner]: procedures = 16, calls = 44, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 48 [2024-09-15 20:26:03,567 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-09-15 20:26:03,568 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-09-15 20:26:03,568 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-09-15 20:26:03,568 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-09-15 20:26:03,579 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 15.09 08:26:03" (1/1) ... [2024-09-15 20:26:03,579 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 15.09 08:26:03" (1/1) ... [2024-09-15 20:26:03,585 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 15.09 08:26:03" (1/1) ... [2024-09-15 20:26:03,608 WARN L109 MemorySlicer]: Omit memory slicing because it failed with the following exception: Unsupported: Procedure __VERIFIER_assert is not part of the Ultimate memory model but has specification other that is not a ModifiesSpecification [2024-09-15 20:26:03,612 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 15.09 08:26:03" (1/1) ... [2024-09-15 20:26:03,612 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 15.09 08:26:03" (1/1) ... [2024-09-15 20:26:03,617 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 15.09 08:26:03" (1/1) ... [2024-09-15 20:26:03,623 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 15.09 08:26:03" (1/1) ... [2024-09-15 20:26:03,624 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 15.09 08:26:03" (1/1) ... [2024-09-15 20:26:03,624 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 15.09 08:26:03" (1/1) ... [2024-09-15 20:26:03,630 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-09-15 20:26:03,631 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-09-15 20:26:03,631 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-09-15 20:26:03,631 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-09-15 20:26:03,632 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 15.09 08:26:03" (1/1) ... [2024-09-15 20:26:03,638 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-15 20:26:03,647 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-15 20:26:03,664 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/certificate-witnesses-artifact/automizer/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-09-15 20:26:03,666 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-09-15 20:26:03,712 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-09-15 20:26:03,714 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-09-15 20:26:03,714 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-09-15 20:26:03,714 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-09-15 20:26:03,714 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-09-15 20:26:03,714 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-09-15 20:26:03,715 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-09-15 20:26:03,715 INFO L130 BoogieDeclarations]: Found specification of procedure func_to_recursive_line_26_to_34_0 [2024-09-15 20:26:03,715 INFO L138 BoogieDeclarations]: Found implementation of procedure func_to_recursive_line_26_to_34_0 [2024-09-15 20:26:03,715 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-09-15 20:26:03,715 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-09-15 20:26:03,715 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-09-15 20:26:03,799 INFO L242 CfgBuilder]: Building ICFG [2024-09-15 20:26:03,801 INFO L268 CfgBuilder]: Building CFG for each procedure with an implementation [2024-09-15 20:26:03,983 WARN L783 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2024-09-15 20:26:04,015 INFO L? ?]: Removed 22 outVars from TransFormulas that were not future-live. [2024-09-15 20:26:04,017 INFO L291 CfgBuilder]: Performing block encoding [2024-09-15 20:26:04,053 INFO L313 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-09-15 20:26:04,054 INFO L318 CfgBuilder]: Removed 1 assume(true) statements. [2024-09-15 20:26:04,055 INFO L201 PluginConnector]: Adding new model witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.09 08:26:04 BoogieIcfgContainer [2024-09-15 20:26:04,055 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-09-15 20:26:04,057 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-09-15 20:26:04,058 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-09-15 20:26:04,061 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-09-15 20:26:04,061 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.09 08:26:03" (1/4) ... [2024-09-15 20:26:04,062 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ac1d50d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.09 08:26:04, skipping insertion in model container [2024-09-15 20:26:04,063 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 15.09 08:26:03" (2/4) ... [2024-09-15 20:26:04,063 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ac1d50d and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 15.09 08:26:04, skipping insertion in model container [2024-09-15 20:26:04,064 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 15.09 08:26:03" (3/4) ... [2024-09-15 20:26:04,064 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ac1d50d and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 15.09 08:26:04, skipping insertion in model container [2024-09-15 20:26:04,064 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.09 08:26:04" (4/4) ... [2024-09-15 20:26:04,065 INFO L112 eAbstractionObserver]: Analyzing ICFG recursified_ps2-ll.c [2024-09-15 20:26:04,084 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-09-15 20:26:04,084 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2024-09-15 20:26:04,144 INFO L335 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-09-15 20:26:04,151 INFO L336 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=None, 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;@573826b0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-09-15 20:26:04,152 INFO L337 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2024-09-15 20:26:04,157 INFO L276 IsEmpty]: Start isEmpty. Operand has 23 states, 14 states have (on average 1.3571428571428572) internal successors, (19), 17 states have internal predecessors, (19), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-09-15 20:26:04,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2024-09-15 20:26:04,164 INFO L208 NwaCegarLoop]: Found error trace [2024-09-15 20:26:04,165 INFO L216 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2024-09-15 20:26:04,166 INFO L399 AbstractCegarLoop]: === Iteration 1 === Targeting func_to_recursive_line_26_to_34_0Err0REQUIRES_VIOLATIONPRE_CONDITION === [ULTIMATE.startErr0REQUIRES_VIOLATIONPRE_CONDITION, func_to_recursive_line_26_to_34_0Err0REQUIRES_VIOLATIONPRE_CONDITION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-09-15 20:26:04,171 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-15 20:26:04,172 INFO L85 PathProgramCache]: Analyzing trace with hash 74160820, now seen corresponding path program 1 times [2024-09-15 20:26:04,182 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-15 20:26:04,182 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1091496481] [2024-09-15 20:26:04,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-15 20:26:04,183 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-15 20:26:04,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-15 20:26:04,363 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1609738532] [2024-09-15 20:26:04,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-15 20:26:04,363 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-15 20:26:04,364 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-15 20:26:04,366 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-15 20:26:04,368 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-09-15 20:26:04,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-15 20:26:04,490 INFO L262 TraceCheckSpWp]: Trace formula consists of 121 conjuncts, 37 conjuncts are in the unsatisfiable core [2024-09-15 20:26:04,501 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-15 20:26:04,590 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-09-15 20:26:04,607 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-09-15 20:26:04,610 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-09-15 20:26:04,626 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-09-15 20:26:04,834 INFO L349 Elim1Store]: treesize reduction 188, result has 24.5 percent of original size [2024-09-15 20:26:04,835 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 4 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 6 new quantified variables, introduced 4 case distinctions, treesize of input 130 treesize of output 333 [2024-09-15 20:26:04,879 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 15 [2024-09-15 20:26:04,923 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 15 [2024-09-15 20:26:04,995 INFO L349 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2024-09-15 20:26:04,996 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 110 treesize of output 100 [2024-09-15 20:26:05,238 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 50 [2024-09-15 20:26:05,305 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 50 [2024-09-15 20:26:05,361 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 50 [2024-09-15 20:26:05,571 INFO L173 IndexEqualityManager]: detected equality via solver [2024-09-15 20:26:05,596 INFO L173 IndexEqualityManager]: detected equality via solver [2024-09-15 20:26:05,600 INFO L173 IndexEqualityManager]: detected equality via solver [2024-09-15 20:26:05,603 INFO L173 IndexEqualityManager]: detected equality via solver [2024-09-15 20:26:05,612 INFO L173 IndexEqualityManager]: detected equality via solver [2024-09-15 20:26:05,618 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 3 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 249 treesize of output 237 [2024-09-15 20:26:05,865 INFO L173 IndexEqualityManager]: detected equality via solver [2024-09-15 20:26:05,890 INFO L173 IndexEqualityManager]: detected equality via solver [2024-09-15 20:26:05,895 INFO L173 IndexEqualityManager]: detected equality via solver [2024-09-15 20:26:05,895 INFO L173 IndexEqualityManager]: detected equality via solver [2024-09-15 20:26:05,903 INFO L173 IndexEqualityManager]: detected equality via solver [2024-09-15 20:26:05,907 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 3 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 291 treesize of output 279 [2024-09-15 20:26:06,054 INFO L173 IndexEqualityManager]: detected equality via solver [2024-09-15 20:26:06,100 INFO L349 Elim1Store]: treesize reduction 54, result has 23.9 percent of original size [2024-09-15 20:26:06,101 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 271 treesize of output 250 [2024-09-15 20:26:06,453 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2024-09-15 20:26:06,768 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-09-15 20:26:06,769 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-09-15 20:26:06,770 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-09-15 20:26:06,930 INFO L349 Elim1Store]: treesize reduction 191, result has 20.7 percent of original size [2024-09-15 20:26:06,931 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 3 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 7 new quantified variables, introduced 7 case distinctions, treesize of input 343 treesize of output 425 [2024-09-15 20:26:07,511 INFO L349 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2024-09-15 20:26:07,512 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 21 treesize of output 11 [2024-09-15 20:26:07,682 INFO L349 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2024-09-15 20:26:07,683 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 21 treesize of output 11 [2024-09-15 20:26:08,344 INFO L349 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2024-09-15 20:26:08,344 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 21 treesize of output 11 [2024-09-15 20:26:10,401 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-09-15 20:26:10,402 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-09-15 20:26:10,403 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-09-15 20:26:10,406 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 272 treesize of output 300 [2024-09-15 20:26:10,571 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-09-15 20:26:10,578 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-09-15 20:26:10,579 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-09-15 20:26:10,582 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 105 treesize of output 106 [2024-09-15 20:26:10,598 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-09-15 20:26:10,599 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-09-15 20:26:10,599 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-09-15 20:26:10,602 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 269 treesize of output 297 [2024-09-15 20:26:10,691 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 62 treesize of output 38 [2024-09-15 20:26:10,826 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-09-15 20:26:10,828 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-09-15 20:26:10,829 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-09-15 20:26:10,830 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-09-15 20:26:10,836 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 249 treesize of output 196 [2024-09-15 20:26:10,934 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-09-15 20:26:10,938 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-09-15 20:26:10,940 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-09-15 20:26:11,093 INFO L349 Elim1Store]: treesize reduction 201, result has 12.2 percent of original size [2024-09-15 20:26:11,094 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 3 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 5 new quantified variables, introduced 5 case distinctions, treesize of input 12933 treesize of output 12761 [2024-09-15 20:26:12,449 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-09-15 20:26:12,450 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-09-15 20:26:12,452 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-09-15 20:26:12,455 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 1014 treesize of output 1015 [2024-09-15 20:26:12,470 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-09-15 20:26:12,471 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-09-15 20:26:12,471 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-09-15 20:26:12,576 INFO L349 Elim1Store]: treesize reduction 149, result has 22.8 percent of original size [2024-09-15 20:26:12,577 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 3 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 7 new quantified variables, introduced 7 case distinctions, treesize of input 3714 treesize of output 3394 [2024-09-15 20:26:13,052 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-09-15 20:26:13,053 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-09-15 20:26:13,054 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-09-15 20:26:13,054 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-09-15 20:26:13,055 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-09-15 20:26:13,056 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-09-15 20:26:13,058 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 112 treesize of output 134 [2024-09-15 20:26:13,083 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-09-15 20:26:13,084 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-09-15 20:26:13,085 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-09-15 20:26:13,087 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 491 treesize of output 496 [2024-09-15 20:26:15,618 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-09-15 20:26:17,921 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-09-15 20:26:17,924 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 19 select indices, 19 select index equivalence classes, 1 disjoint index pairs (out of 171 index pairs), introduced 19 new quantified variables, introduced 170 case distinctions, treesize of input 23065 treesize of output 21825 [2024-09-15 20:26:18,578 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 1232 treesize of output 1230 [2024-09-15 20:26:18,792 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 1230 treesize of output 1228 [2024-09-15 20:26:19,010 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 1228 treesize of output 1226 [2024-09-15 20:26:19,228 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 1226 treesize of output 1224 [2024-09-15 20:26:19,467 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 1224 treesize of output 1222 [2024-09-15 20:26:19,685 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 1222 treesize of output 1220 [2024-09-15 20:26:19,919 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 1220 treesize of output 1218 [2024-09-15 20:26:21,673 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-09-15 20:26:21,673 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 20 treesize of output 22 [2024-09-15 20:26:37,441 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-15 20:26:37,441 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-15 20:26:37,442 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-15 20:26:37,442 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1091496481] [2024-09-15 20:26:37,442 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-15 20:26:37,443 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1609738532] [2024-09-15 20:26:37,444 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1609738532] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-15 20:26:37,444 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-15 20:26:37,444 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-09-15 20:26:37,446 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2029672083] [2024-09-15 20:26:37,446 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-15 20:26:37,450 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-09-15 20:26:37,450 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-15 20:26:37,474 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-09-15 20:26:37,474 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-09-15 20:26:37,477 INFO L87 Difference]: Start difference. First operand has 23 states, 14 states have (on average 1.3571428571428572) internal successors, (19), 17 states have internal predecessors, (19), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Second operand has 6 states, 4 states have (on average 1.0) internal successors, (4), 4 states have internal predecessors, (4), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-09-15 20:26:47,930 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-09-15 20:26:51,938 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-09-15 20:26:52,213 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-15 20:26:52,213 INFO L93 Difference]: Finished difference Result 27 states and 30 transitions. [2024-09-15 20:26:52,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-09-15 20:26:52,215 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 4 states have (on average 1.0) internal successors, (4), 4 states have internal predecessors, (4), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2024-09-15 20:26:52,216 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-15 20:26:52,221 INFO L225 Difference]: With dead ends: 27 [2024-09-15 20:26:52,221 INFO L226 Difference]: Without dead ends: 25 [2024-09-15 20:26:52,222 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 7.1s TimeCoverageRelationStatistics Valid=18, Invalid=37, Unknown=1, NotChecked=0, Total=56 [2024-09-15 20:26:52,227 INFO L434 NwaCegarLoop]: 20 mSDtfsCounter, 3 mSDsluCounter, 60 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 1 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 80 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.7s IncrementalHoareTripleChecker+Time [2024-09-15 20:26:52,227 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 80 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 43 Invalid, 2 Unknown, 0 Unchecked, 8.7s Time] [2024-09-15 20:26:52,242 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2024-09-15 20:26:52,255 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 24. [2024-09-15 20:26:52,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 15 states have (on average 1.2) internal successors, (18), 18 states have internal predecessors, (18), 5 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) [2024-09-15 20:26:52,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 27 transitions. [2024-09-15 20:26:52,258 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 27 transitions. Word has length 5 [2024-09-15 20:26:52,258 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-15 20:26:52,258 INFO L474 AbstractCegarLoop]: Abstraction has 24 states and 27 transitions. [2024-09-15 20:26:52,259 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 4 states have (on average 1.0) internal successors, (4), 4 states have internal predecessors, (4), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-09-15 20:26:52,259 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 27 transitions. [2024-09-15 20:26:52,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-09-15 20:26:52,260 INFO L208 NwaCegarLoop]: Found error trace [2024-09-15 20:26:52,260 INFO L216 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-09-15 20:26:52,278 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-09-15 20:26:52,464 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-09-15 20:26:52,465 INFO L399 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr1ENSURES_VIOLATIONPOST_CONDITION === [ULTIMATE.startErr0REQUIRES_VIOLATIONPRE_CONDITION, func_to_recursive_line_26_to_34_0Err0REQUIRES_VIOLATIONPRE_CONDITION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-09-15 20:26:52,465 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-15 20:26:52,466 INFO L85 PathProgramCache]: Analyzing trace with hash 1712682790, now seen corresponding path program 1 times [2024-09-15 20:26:52,466 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-15 20:26:52,466 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1062886787] [2024-09-15 20:26:52,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-15 20:26:52,466 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-15 20:26:52,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-15 20:26:52,585 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-15 20:26:52,585 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-15 20:26:52,585 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1062886787] [2024-09-15 20:26:52,586 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1062886787] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-15 20:26:52,586 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-15 20:26:52,586 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-09-15 20:26:52,586 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [833987640] [2024-09-15 20:26:52,586 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-15 20:26:52,587 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-09-15 20:26:52,587 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-15 20:26:52,588 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-09-15 20:26:52,589 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-15 20:26:52,589 INFO L87 Difference]: Start difference. First operand 24 states and 27 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-09-15 20:26:52,612 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-15 20:26:52,613 INFO L93 Difference]: Finished difference Result 23 states and 26 transitions. [2024-09-15 20:26:52,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-15 20:26:52,614 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2024-09-15 20:26:52,614 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-15 20:26:52,616 INFO L225 Difference]: With dead ends: 23 [2024-09-15 20:26:52,616 INFO L226 Difference]: Without dead ends: 23 [2024-09-15 20:26:52,617 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-15 20:26:52,618 INFO L434 NwaCegarLoop]: 18 mSDtfsCounter, 3 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 31 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-09-15 20:26:52,621 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 31 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-09-15 20:26:52,621 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2024-09-15 20:26:52,625 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2024-09-15 20:26:52,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 15 states have (on average 1.1333333333333333) internal successors, (17), 17 states have internal predecessors, (17), 5 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) [2024-09-15 20:26:52,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 26 transitions. [2024-09-15 20:26:52,626 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 26 transitions. Word has length 8 [2024-09-15 20:26:52,628 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-15 20:26:52,628 INFO L474 AbstractCegarLoop]: Abstraction has 23 states and 26 transitions. [2024-09-15 20:26:52,628 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-09-15 20:26:52,628 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 26 transitions. [2024-09-15 20:26:52,628 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-09-15 20:26:52,628 INFO L208 NwaCegarLoop]: Found error trace [2024-09-15 20:26:52,629 INFO L216 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-09-15 20:26:52,629 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-09-15 20:26:52,629 INFO L399 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0REQUIRES_VIOLATIONPRE_CONDITION, func_to_recursive_line_26_to_34_0Err0REQUIRES_VIOLATIONPRE_CONDITION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-09-15 20:26:52,630 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-15 20:26:52,631 INFO L85 PathProgramCache]: Analyzing trace with hash 1712682629, now seen corresponding path program 1 times [2024-09-15 20:26:52,631 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-15 20:26:52,631 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [662461691] [2024-09-15 20:26:52,631 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-15 20:26:52,632 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-15 20:26:52,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-15 20:26:52,778 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-15 20:26:52,779 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-15 20:26:52,779 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [662461691] [2024-09-15 20:26:52,779 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [662461691] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-15 20:26:52,779 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-15 20:26:52,779 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-15 20:26:52,780 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [184428876] [2024-09-15 20:26:52,780 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-15 20:26:52,780 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-09-15 20:26:52,780 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-15 20:26:52,781 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-09-15 20:26:52,781 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-15 20:26:52,781 INFO L87 Difference]: Start difference. First operand 23 states and 26 transitions. Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-09-15 20:26:52,796 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-15 20:26:52,797 INFO L93 Difference]: Finished difference Result 21 states and 24 transitions. [2024-09-15 20:26:52,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-15 20:26:52,798 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2024-09-15 20:26:52,798 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-15 20:26:52,799 INFO L225 Difference]: With dead ends: 21 [2024-09-15 20:26:52,799 INFO L226 Difference]: Without dead ends: 21 [2024-09-15 20:26:52,799 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-15 20:26:52,800 INFO L434 NwaCegarLoop]: 17 mSDtfsCounter, 0 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 34 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-09-15 20:26:52,800 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 34 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-09-15 20:26:52,800 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2024-09-15 20:26:52,805 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2024-09-15 20:26:52,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 14 states have (on average 1.0714285714285714) internal successors, (15), 15 states have internal predecessors, (15), 4 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) [2024-09-15 20:26:52,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 23 transitions. [2024-09-15 20:26:52,809 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 23 transitions. Word has length 8 [2024-09-15 20:26:52,811 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-15 20:26:52,812 INFO L474 AbstractCegarLoop]: Abstraction has 21 states and 23 transitions. [2024-09-15 20:26:52,812 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-09-15 20:26:52,812 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 23 transitions. [2024-09-15 20:26:52,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-09-15 20:26:52,813 INFO L208 NwaCegarLoop]: Found error trace [2024-09-15 20:26:52,813 INFO L216 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-15 20:26:52,813 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-09-15 20:26:52,813 INFO L399 AbstractCegarLoop]: === Iteration 4 === Targeting func_to_recursive_line_26_to_34_0Err0REQUIRES_VIOLATIONPRE_CONDITION === [ULTIMATE.startErr0REQUIRES_VIOLATIONPRE_CONDITION, func_to_recursive_line_26_to_34_0Err0REQUIRES_VIOLATIONPRE_CONDITION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-09-15 20:26:52,813 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-15 20:26:52,813 INFO L85 PathProgramCache]: Analyzing trace with hash -1570114581, now seen corresponding path program 1 times [2024-09-15 20:26:52,814 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-15 20:26:52,814 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1054115683] [2024-09-15 20:26:52,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-15 20:26:52,814 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-15 20:26:52,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-15 20:26:52,897 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1644241049] [2024-09-15 20:26:52,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-15 20:26:52,897 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-15 20:26:52,897 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-15 20:26:52,899 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-15 20:26:52,904 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-09-15 20:26:52,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-15 20:26:53,003 INFO L262 TraceCheckSpWp]: Trace formula consists of 188 conjuncts, 71 conjuncts are in the unsatisfiable core [2024-09-15 20:26:53,007 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-15 20:26:53,023 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-09-15 20:26:53,026 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-09-15 20:26:53,028 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-09-15 20:26:53,035 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-09-15 20:26:53,036 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-09-15 20:26:53,039 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-09-15 20:26:53,858 INFO L349 Elim1Store]: treesize reduction 384, result has 24.0 percent of original size [2024-09-15 20:26:53,859 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 8 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 11 new quantified variables, introduced 8 case distinctions, treesize of input 286 treesize of output 1051 [2024-09-15 20:26:53,980 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 29 [2024-09-15 20:26:54,088 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 29 [2024-09-15 20:26:54,209 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 29 [2024-09-15 20:26:54,333 INFO L349 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2024-09-15 20:26:54,334 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 76 treesize of output 70 [2024-09-15 20:26:54,721 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 3 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 97 treesize of output 148 [2024-09-15 20:26:54,907 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 3 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 97 treesize of output 148 [2024-09-15 20:26:55,135 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 3 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 97 treesize of output 148 [2024-09-15 20:26:57,872 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-09-15 20:26:57,874 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-09-15 20:26:58,193 INFO L173 IndexEqualityManager]: detected equality via solver [2024-09-15 20:26:58,214 INFO L173 IndexEqualityManager]: detected equality via solver [2024-09-15 20:26:58,370 INFO L173 IndexEqualityManager]: detected equality via solver [2024-09-15 20:26:58,398 INFO L224 Elim1Store]: Index analysis took 540 ms [2024-09-15 20:26:58,473 INFO L349 Elim1Store]: treesize reduction 73, result has 9.9 percent of original size [2024-09-15 20:26:58,473 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 6 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 13 case distinctions, treesize of input 876 treesize of output 1075 [2024-09-15 20:27:00,316 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-09-15 20:27:00,317 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-09-15 20:27:00,319 INFO L173 IndexEqualityManager]: detected equality via solver [2024-09-15 20:27:00,400 INFO L173 IndexEqualityManager]: detected equality via solver [2024-09-15 20:27:00,427 INFO L173 IndexEqualityManager]: detected equality via solver [2024-09-15 20:27:00,441 INFO L173 IndexEqualityManager]: detected equality via solver [2024-09-15 20:27:00,462 INFO L173 IndexEqualityManager]: detected equality via solver [2024-09-15 20:27:00,492 INFO L173 IndexEqualityManager]: detected equality via solver [2024-09-15 20:27:00,522 INFO L173 IndexEqualityManager]: detected equality via solver [2024-09-15 20:27:00,523 INFO L173 IndexEqualityManager]: detected equality via solver [2024-09-15 20:27:00,536 INFO L173 IndexEqualityManager]: detected equality via solver [2024-09-15 20:27:00,536 INFO L224 Elim1Store]: Index analysis took 220 ms [2024-09-15 20:27:00,538 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 6 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 590 treesize of output 787 [2024-09-15 20:27:00,924 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-09-15 20:27:00,925 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-09-15 20:27:00,928 INFO L173 IndexEqualityManager]: detected equality via solver [2024-09-15 20:27:01,003 INFO L173 IndexEqualityManager]: detected equality via solver [2024-09-15 20:27:01,017 INFO L173 IndexEqualityManager]: detected equality via solver [2024-09-15 20:27:01,019 INFO L173 IndexEqualityManager]: detected equality via solver [2024-09-15 20:27:01,053 INFO L173 IndexEqualityManager]: detected equality via solver [2024-09-15 20:27:01,084 INFO L173 IndexEqualityManager]: detected equality via solver [2024-09-15 20:27:01,095 INFO L173 IndexEqualityManager]: detected equality via solver [2024-09-15 20:27:01,095 INFO L224 Elim1Store]: Index analysis took 172 ms [2024-09-15 20:27:01,097 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 5 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 609 treesize of output 714 [2024-09-15 20:27:01,672 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-09-15 20:27:01,674 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-09-15 20:27:01,681 INFO L173 IndexEqualityManager]: detected equality via solver [2024-09-15 20:27:01,690 INFO L173 IndexEqualityManager]: detected equality via solver [2024-09-15 20:27:01,697 INFO L173 IndexEqualityManager]: detected equality via solver [2024-09-15 20:27:01,703 INFO L173 IndexEqualityManager]: detected equality via solver [2024-09-15 20:27:01,750 INFO L173 IndexEqualityManager]: detected equality via solver [2024-09-15 20:27:01,756 INFO L173 IndexEqualityManager]: detected equality via solver [2024-09-15 20:27:01,769 INFO L173 IndexEqualityManager]: detected equality via solver [2024-09-15 20:27:01,772 INFO L173 IndexEqualityManager]: detected equality via solver [2024-09-15 20:27:01,785 INFO L173 IndexEqualityManager]: detected equality via solver [2024-09-15 20:27:01,785 INFO L173 IndexEqualityManager]: detected equality via solver [2024-09-15 20:27:01,788 INFO L173 IndexEqualityManager]: detected equality via solver [2024-09-15 20:27:01,795 INFO L173 IndexEqualityManager]: detected equality via solver [2024-09-15 20:27:01,798 INFO L173 IndexEqualityManager]: detected equality via solver [2024-09-15 20:27:01,798 INFO L224 Elim1Store]: Index analysis took 128 ms [2024-09-15 20:27:01,800 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 5 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 147 treesize of output 254 [2024-09-15 20:27:01,932 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-09-15 20:27:01,933 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-09-15 20:27:01,935 INFO L173 IndexEqualityManager]: detected equality via solver [2024-09-15 20:27:01,992 INFO L173 IndexEqualityManager]: detected equality via solver [2024-09-15 20:27:02,019 INFO L173 IndexEqualityManager]: detected equality via solver [2024-09-15 20:27:02,033 INFO L173 IndexEqualityManager]: detected equality via solver [2024-09-15 20:27:02,060 INFO L173 IndexEqualityManager]: detected equality via solver [2024-09-15 20:27:02,072 INFO L173 IndexEqualityManager]: detected equality via solver [2024-09-15 20:27:02,073 INFO L173 IndexEqualityManager]: detected equality via solver [2024-09-15 20:27:02,073 INFO L224 Elim1Store]: Index analysis took 141 ms [2024-09-15 20:27:02,075 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 5 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 522 treesize of output 627 [2024-09-15 20:27:08,758 INFO L173 IndexEqualityManager]: detected equality via solver [2024-09-15 20:27:08,760 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-09-15 20:27:08,761 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-09-15 20:27:08,764 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-09-15 20:27:08,769 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-09-15 20:27:08,771 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-09-15 20:27:08,771 INFO L173 IndexEqualityManager]: detected equality via solver [2024-09-15 20:27:08,776 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 206 treesize of output 169 [2024-09-15 20:27:08,787 INFO L173 IndexEqualityManager]: detected equality via solver [2024-09-15 20:27:08,790 INFO L349 Elim1Store]: treesize reduction 22, result has 4.3 percent of original size [2024-09-15 20:27:08,791 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 4 case distinctions, treesize of input 32 treesize of output 29 [2024-09-15 20:27:08,821 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2024-09-15 20:27:10,233 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-09-15 20:27:10,233 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-09-15 20:27:10,234 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-09-15 20:27:10,235 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-09-15 20:27:10,235 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-09-15 20:27:10,236 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-09-15 20:27:10,239 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-09-15 20:27:10,240 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-09-15 20:27:10,248 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 115 treesize of output 84 [2024-09-15 20:27:10,645 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-09-15 20:27:10,646 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-09-15 20:27:10,647 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-09-15 20:27:10,649 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 61 treesize of output 48 [2024-09-15 20:27:10,651 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 11 [2024-09-15 20:27:10,655 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 11 [2024-09-15 20:27:10,711 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-15 20:27:10,711 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-15 20:27:10,919 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-15 20:27:10,919 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1054115683] [2024-09-15 20:27:10,919 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-15 20:27:10,919 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1644241049] [2024-09-15 20:27:10,919 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1644241049] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-15 20:27:10,919 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-15 20:27:10,919 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2024-09-15 20:27:10,920 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [618599794] [2024-09-15 20:27:10,920 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-15 20:27:10,920 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-09-15 20:27:10,920 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-15 20:27:10,921 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-09-15 20:27:10,923 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=115, Unknown=9, NotChecked=0, Total=156 [2024-09-15 20:27:10,923 INFO L87 Difference]: Start difference. First operand 21 states and 23 transitions. Second operand has 9 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 6 states have internal predecessors, (11), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-15 20:27:11,159 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-15 20:27:11,159 INFO L93 Difference]: Finished difference Result 42 states and 46 transitions. [2024-09-15 20:27:11,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-09-15 20:27:11,159 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 6 states have internal predecessors, (11), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 15 [2024-09-15 20:27:11,159 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-15 20:27:11,161 INFO L225 Difference]: With dead ends: 42 [2024-09-15 20:27:11,161 INFO L226 Difference]: Without dead ends: 42 [2024-09-15 20:27:11,161 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 9 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=55, Invalid=174, Unknown=11, NotChecked=0, Total=240 [2024-09-15 20:27:11,162 INFO L434 NwaCegarLoop]: 14 mSDtfsCounter, 21 mSDsluCounter, 43 mSDsCounter, 0 mSdLazyCounter, 90 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 57 SdHoareTripleChecker+Invalid, 97 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 90 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-15 20:27:11,162 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 57 Invalid, 97 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 90 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-15 20:27:11,163 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2024-09-15 20:27:11,168 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 37. [2024-09-15 20:27:11,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37 states, 25 states have (on average 1.12) internal successors, (28), 27 states have internal predecessors, (28), 6 states have call successors, (6), 5 states have call predecessors, (6), 5 states have return successors, (8), 6 states have call predecessors, (8), 6 states have call successors, (8) [2024-09-15 20:27:11,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 42 transitions. [2024-09-15 20:27:11,169 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 42 transitions. Word has length 15 [2024-09-15 20:27:11,169 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-15 20:27:11,169 INFO L474 AbstractCegarLoop]: Abstraction has 37 states and 42 transitions. [2024-09-15 20:27:11,170 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 6 states have internal predecessors, (11), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-15 20:27:11,170 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 42 transitions. [2024-09-15 20:27:11,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-09-15 20:27:11,170 INFO L208 NwaCegarLoop]: Found error trace [2024-09-15 20:27:11,170 INFO L216 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-15 20:27:11,182 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-09-15 20:27:11,370 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-15 20:27:11,371 INFO L399 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONPRE_CONDITION === [ULTIMATE.startErr0REQUIRES_VIOLATIONPRE_CONDITION, func_to_recursive_line_26_to_34_0Err0REQUIRES_VIOLATIONPRE_CONDITION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-09-15 20:27:11,371 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-15 20:27:11,372 INFO L85 PathProgramCache]: Analyzing trace with hash -1571605412, now seen corresponding path program 1 times [2024-09-15 20:27:11,372 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-15 20:27:11,372 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1730779879] [2024-09-15 20:27:11,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-15 20:27:11,372 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-15 20:27:11,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-15 20:27:11,395 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [154490557] [2024-09-15 20:27:11,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-15 20:27:11,395 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-15 20:27:11,395 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-15 20:27:11,397 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-15 20:27:11,400 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-09-15 20:27:11,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-15 20:27:11,481 INFO L262 TraceCheckSpWp]: Trace formula consists of 146 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-09-15 20:27:11,483 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-15 20:27:11,502 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-09-15 20:27:11,506 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-09-15 20:27:11,509 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-09-15 20:27:11,511 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-09-15 20:27:11,704 INFO L349 Elim1Store]: treesize reduction 188, result has 24.5 percent of original size [2024-09-15 20:27:11,705 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 4 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 6 new quantified variables, introduced 4 case distinctions, treesize of input 130 treesize of output 333 [2024-09-15 20:27:11,747 INFO L349 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2024-09-15 20:27:11,748 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 77 treesize of output 73 [2024-09-15 20:27:11,773 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 15 [2024-09-15 20:27:11,799 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 15 [2024-09-15 20:27:11,960 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 50 [2024-09-15 20:27:12,111 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 50 [2024-09-15 20:27:12,163 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 50 [2024-09-15 20:27:13,015 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-09-15 20:27:13,016 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-09-15 20:27:13,016 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-09-15 20:27:13,019 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-09-15 20:27:13,022 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-09-15 20:27:13,024 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-09-15 20:27:13,055 INFO L349 Elim1Store]: treesize reduction 27, result has 38.6 percent of original size [2024-09-15 20:27:13,056 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 623 treesize of output 570 [2024-09-15 20:27:16,304 INFO L349 Elim1Store]: treesize reduction 8, result has 98.7 percent of original size [2024-09-15 20:27:16,306 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 13 select indices, 13 select index equivalence classes, 0 disjoint index pairs (out of 78 index pairs), introduced 13 new quantified variables, introduced 78 case distinctions, treesize of input 5780 treesize of output 5600 [2024-09-15 20:27:16,394 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 430 treesize of output 428 [2024-09-15 20:27:16,455 INFO L349 Elim1Store]: treesize reduction 11, result has 50.0 percent of original size [2024-09-15 20:27:16,455 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 428 treesize of output 435 [2024-09-15 20:27:16,631 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2024-09-15 20:27:16,657 INFO L349 Elim1Store]: treesize reduction 9, result has 10.0 percent of original size [2024-09-15 20:27:16,657 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 9 [2024-09-15 20:27:19,688 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-15 20:27:19,688 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-15 20:27:19,688 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-15 20:27:19,688 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1730779879] [2024-09-15 20:27:19,688 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-15 20:27:19,688 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [154490557] [2024-09-15 20:27:19,689 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [154490557] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-15 20:27:19,689 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-15 20:27:19,689 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-09-15 20:27:19,689 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [773807952] [2024-09-15 20:27:19,689 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-15 20:27:19,689 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-15 20:27:19,689 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-15 20:27:19,690 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-15 20:27:19,690 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-09-15 20:27:19,690 INFO L87 Difference]: Start difference. First operand 37 states and 42 transitions. Second operand has 5 states, 4 states have (on average 2.75) internal successors, (11), 5 states have internal predecessors, (11), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-09-15 20:27:19,831 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-15 20:27:19,831 INFO L93 Difference]: Finished difference Result 43 states and 47 transitions. [2024-09-15 20:27:19,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-15 20:27:19,831 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.75) internal successors, (11), 5 states have internal predecessors, (11), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 15 [2024-09-15 20:27:19,832 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-15 20:27:19,832 INFO L225 Difference]: With dead ends: 43 [2024-09-15 20:27:19,832 INFO L226 Difference]: Without dead ends: 39 [2024-09-15 20:27:19,832 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-09-15 20:27:19,833 INFO L434 NwaCegarLoop]: 9 mSDtfsCounter, 4 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 26 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-15 20:27:19,833 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 26 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 37 Invalid, 1 Unknown, 0 Unchecked, 0.1s Time] [2024-09-15 20:27:19,834 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2024-09-15 20:27:19,838 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2024-09-15 20:27:19,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39 states, 26 states have (on average 1.0769230769230769) internal successors, (28), 27 states have internal predecessors, (28), 6 states have call successors, (6), 5 states have call predecessors, (6), 6 states have return successors, (9), 6 states have call predecessors, (9), 6 states have call successors, (9) [2024-09-15 20:27:19,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 43 transitions. [2024-09-15 20:27:19,839 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 43 transitions. Word has length 15 [2024-09-15 20:27:19,839 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-15 20:27:19,839 INFO L474 AbstractCegarLoop]: Abstraction has 39 states and 43 transitions. [2024-09-15 20:27:19,839 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.75) internal successors, (11), 5 states have internal predecessors, (11), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-09-15 20:27:19,839 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 43 transitions. [2024-09-15 20:27:19,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2024-09-15 20:27:19,840 INFO L208 NwaCegarLoop]: Found error trace [2024-09-15 20:27:19,840 INFO L216 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1] [2024-09-15 20:27:19,852 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-09-15 20:27:20,040 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-15 20:27:20,041 INFO L399 AbstractCegarLoop]: === Iteration 6 === Targeting func_to_recursive_line_26_to_34_0Err0REQUIRES_VIOLATIONPRE_CONDITION === [ULTIMATE.startErr0REQUIRES_VIOLATIONPRE_CONDITION, func_to_recursive_line_26_to_34_0Err0REQUIRES_VIOLATIONPRE_CONDITION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-09-15 20:27:20,041 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-15 20:27:20,041 INFO L85 PathProgramCache]: Analyzing trace with hash -634424222, now seen corresponding path program 2 times [2024-09-15 20:27:20,041 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-15 20:27:20,041 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1981643092] [2024-09-15 20:27:20,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-15 20:27:20,041 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-15 20:27:20,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-15 20:27:20,095 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1114938969] [2024-09-15 20:27:20,096 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-15 20:27:20,096 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-15 20:27:20,096 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-15 20:27:20,097 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-15 20:27:20,103 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-09-15 20:27:20,209 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-09-15 20:27:20,209 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-15 20:27:20,212 INFO L262 TraceCheckSpWp]: Trace formula consists of 255 conjuncts, 100 conjuncts are in the unsatisfiable core [2024-09-15 20:27:20,217 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-15 20:27:20,260 INFO L349 Elim1Store]: treesize reduction 58, result has 24.7 percent of original size [2024-09-15 20:27:20,260 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 38 treesize of output 34 [2024-09-15 20:27:20,294 INFO L349 Elim1Store]: treesize reduction 24, result has 52.9 percent of original size [2024-09-15 20:27:20,295 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 34 treesize of output 46 [2024-09-15 20:27:20,350 INFO L349 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2024-09-15 20:27:20,351 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 19 [2024-09-15 20:27:20,366 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 36 [2024-09-15 20:27:20,382 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 3 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 56 treesize of output 55 [2024-09-15 20:27:20,390 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 59 treesize of output 58 [2024-09-15 20:27:20,396 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-09-15 20:27:20,399 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 23 [2024-09-15 20:27:20,404 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2024-09-15 20:27:20,413 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-09-15 20:27:20,414 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-09-15 20:27:20,420 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-09-15 20:27:20,422 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-09-15 20:27:20,423 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-09-15 20:27:20,428 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 3 stores, 1 select indices, 1 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 61 treesize of output 60 [2024-09-15 20:27:20,434 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-09-15 20:27:20,438 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-09-15 20:27:20,446 INFO L349 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2024-09-15 20:27:20,446 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 19 [2024-09-15 20:27:20,460 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 63 [2024-09-15 20:27:20,471 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 136 treesize of output 129 [2024-09-15 20:27:20,477 WARN L214 Elim1Store]: Array PQE input equivalent to false [2024-09-15 20:27:20,521 INFO L349 Elim1Store]: treesize reduction 53, result has 41.1 percent of original size [2024-09-15 20:27:20,521 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 3 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 56 treesize of output 63 [2024-09-15 20:27:20,530 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-09-15 20:27:20,584 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 19 [2024-09-15 20:27:20,796 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-09-15 20:27:20,797 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-09-15 20:27:20,798 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-09-15 20:27:20,800 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 43 [2024-09-15 20:27:20,804 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 11 [2024-09-15 20:27:20,810 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 11 [2024-09-15 20:27:21,020 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-09-15 20:27:21,021 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-09-15 20:27:21,022 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-09-15 20:27:21,024 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 43 [2024-09-15 20:27:21,028 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 11 [2024-09-15 20:27:21,034 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 11 [2024-09-15 20:27:21,107 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-15 20:27:21,108 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-15 20:27:21,183 WARN L854 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_235 (Array Int Int))) (let ((.cse5 (store |c_#memory_int| c_func_to_recursive_line_26_to_34_0_~c.base v_ArrVal_235))) (let ((.cse6 (select .cse5 c_func_to_recursive_line_26_to_34_0_~y.base))) (let ((.cse3 (select .cse6 c_func_to_recursive_line_26_to_34_0_~y.offset))) (let ((.cse1 (store .cse5 c_func_to_recursive_line_26_to_34_0_~y.base (store .cse6 c_func_to_recursive_line_26_to_34_0_~y.offset (+ .cse3 1))))) (let ((.cse2 (select .cse1 c_func_to_recursive_line_26_to_34_0_~x.base))) (let ((.cse4 (select .cse2 c_func_to_recursive_line_26_to_34_0_~x.offset))) (= (let ((.cse0 (select (select (store .cse1 c_func_to_recursive_line_26_to_34_0_~x.base (store .cse2 c_func_to_recursive_line_26_to_34_0_~x.offset (+ .cse3 .cse4 1))) c_func_to_recursive_line_26_to_34_0_~y.base) c_func_to_recursive_line_26_to_34_0_~y.offset))) (+ .cse0 (* .cse0 .cse0))) (+ (* .cse3 2) 2 (* .cse4 2)))))))))) is different from false [2024-09-15 20:27:21,204 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-15 20:27:21,204 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1981643092] [2024-09-15 20:27:21,204 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-15 20:27:21,204 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1114938969] [2024-09-15 20:27:21,204 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1114938969] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-15 20:27:21,204 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-15 20:27:21,204 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2024-09-15 20:27:21,204 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [327591604] [2024-09-15 20:27:21,204 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-15 20:27:21,205 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-09-15 20:27:21,205 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-15 20:27:21,205 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-09-15 20:27:21,205 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=172, Unknown=1, NotChecked=26, Total=240 [2024-09-15 20:27:21,206 INFO L87 Difference]: Start difference. First operand 39 states and 43 transitions. Second operand has 12 states, 10 states have (on average 1.8) internal successors, (18), 8 states have internal predecessors, (18), 4 states have call successors, (5), 5 states have call predecessors, (5), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-09-15 20:27:21,530 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-15 20:27:21,530 INFO L93 Difference]: Finished difference Result 56 states and 61 transitions. [2024-09-15 20:27:21,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-09-15 20:27:21,531 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 10 states have (on average 1.8) internal successors, (18), 8 states have internal predecessors, (18), 4 states have call successors, (5), 5 states have call predecessors, (5), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 25 [2024-09-15 20:27:21,531 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-15 20:27:21,532 INFO L225 Difference]: With dead ends: 56 [2024-09-15 20:27:21,532 INFO L226 Difference]: Without dead ends: 56 [2024-09-15 20:27:21,532 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 15 SyntacticMatches, 2 SemanticMatches, 18 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=70, Invalid=275, Unknown=1, NotChecked=34, Total=380 [2024-09-15 20:27:21,533 INFO L434 NwaCegarLoop]: 19 mSDtfsCounter, 26 mSDsluCounter, 62 mSDsCounter, 0 mSdLazyCounter, 153 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 81 SdHoareTripleChecker+Invalid, 162 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 153 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-15 20:27:21,533 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 81 Invalid, 162 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 153 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-15 20:27:21,533 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2024-09-15 20:27:21,538 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 53. [2024-09-15 20:27:21,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53 states, 35 states have (on average 1.0857142857142856) internal successors, (38), 37 states have internal predecessors, (38), 8 states have call successors, (8), 7 states have call predecessors, (8), 9 states have return successors, (13), 8 states have call predecessors, (13), 8 states have call successors, (13) [2024-09-15 20:27:21,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 59 transitions. [2024-09-15 20:27:21,539 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 59 transitions. Word has length 25 [2024-09-15 20:27:21,539 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-15 20:27:21,539 INFO L474 AbstractCegarLoop]: Abstraction has 53 states and 59 transitions. [2024-09-15 20:27:21,539 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 10 states have (on average 1.8) internal successors, (18), 8 states have internal predecessors, (18), 4 states have call successors, (5), 5 states have call predecessors, (5), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-09-15 20:27:21,539 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 59 transitions. [2024-09-15 20:27:21,540 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2024-09-15 20:27:21,540 INFO L208 NwaCegarLoop]: Found error trace [2024-09-15 20:27:21,540 INFO L216 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-15 20:27:21,553 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-09-15 20:27:21,740 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-15 20:27:21,741 INFO L399 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONPRE_CONDITION === [ULTIMATE.startErr0REQUIRES_VIOLATIONPRE_CONDITION, func_to_recursive_line_26_to_34_0Err0REQUIRES_VIOLATIONPRE_CONDITION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-09-15 20:27:21,741 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-15 20:27:21,741 INFO L85 PathProgramCache]: Analyzing trace with hash -1222779608, now seen corresponding path program 1 times [2024-09-15 20:27:21,741 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-15 20:27:21,741 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [219478614] [2024-09-15 20:27:21,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-15 20:27:21,742 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-15 20:27:21,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-15 20:27:21,790 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [393355957] [2024-09-15 20:27:21,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-15 20:27:21,790 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-15 20:27:21,793 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-15 20:27:21,795 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-15 20:27:21,797 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-09-15 20:27:21,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-15 20:27:21,891 INFO L262 TraceCheckSpWp]: Trace formula consists of 215 conjuncts, 59 conjuncts are in the unsatisfiable core [2024-09-15 20:27:21,894 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-15 20:27:21,897 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 37 [2024-09-15 20:27:21,994 INFO L349 Elim1Store]: treesize reduction 88, result has 39.3 percent of original size [2024-09-15 20:27:21,994 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 56 treesize of output 105 [2024-09-15 20:27:22,000 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 17 [2024-09-15 20:27:22,014 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2024-09-15 20:27:22,035 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2024-09-15 20:27:22,127 INFO L349 Elim1Store]: treesize reduction 51, result has 20.3 percent of original size [2024-09-15 20:27:22,127 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 7 case distinctions, treesize of input 49 treesize of output 33 [2024-09-15 20:27:22,140 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 11 [2024-09-15 20:27:22,275 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 22 [2024-09-15 20:27:22,293 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 5 proven. 5 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-09-15 20:27:22,293 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-15 20:27:24,917 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-15 20:27:24,918 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [219478614] [2024-09-15 20:27:24,918 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-15 20:27:24,918 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [393355957] [2024-09-15 20:27:24,918 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [393355957] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-15 20:27:24,918 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-15 20:27:24,918 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2024-09-15 20:27:24,918 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1252804336] [2024-09-15 20:27:24,918 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-15 20:27:24,918 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-09-15 20:27:24,919 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-15 20:27:24,919 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-09-15 20:27:24,919 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=223, Unknown=0, NotChecked=0, Total=272 [2024-09-15 20:27:24,919 INFO L87 Difference]: Start difference. First operand 53 states and 59 transitions. Second operand has 12 states, 9 states have (on average 2.111111111111111) internal successors, (19), 10 states have internal predecessors, (19), 3 states have call successors, (4), 2 states have call predecessors, (4), 4 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4) [2024-09-15 20:27:25,221 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-15 20:27:25,221 INFO L93 Difference]: Finished difference Result 52 states and 58 transitions. [2024-09-15 20:27:25,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-09-15 20:27:25,222 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 9 states have (on average 2.111111111111111) internal successors, (19), 10 states have internal predecessors, (19), 3 states have call successors, (4), 2 states have call predecessors, (4), 4 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4) Word has length 27 [2024-09-15 20:27:25,222 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-15 20:27:25,222 INFO L225 Difference]: With dead ends: 52 [2024-09-15 20:27:25,222 INFO L226 Difference]: Without dead ends: 38 [2024-09-15 20:27:25,223 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 80 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=96, Invalid=410, Unknown=0, NotChecked=0, Total=506 [2024-09-15 20:27:25,223 INFO L434 NwaCegarLoop]: 5 mSDtfsCounter, 20 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 102 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 22 SdHoareTripleChecker+Invalid, 114 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 102 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-15 20:27:25,224 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 22 Invalid, 114 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 102 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-15 20:27:25,224 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2024-09-15 20:27:25,226 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 36. [2024-09-15 20:27:25,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36 states, 25 states have (on average 1.0) internal successors, (25), 25 states have internal predecessors, (25), 8 states have call successors, (8), 7 states have call predecessors, (8), 3 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) [2024-09-15 20:27:25,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 37 transitions. [2024-09-15 20:27:25,227 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 37 transitions. Word has length 27 [2024-09-15 20:27:25,227 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-15 20:27:25,227 INFO L474 AbstractCegarLoop]: Abstraction has 36 states and 37 transitions. [2024-09-15 20:27:25,227 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 9 states have (on average 2.111111111111111) internal successors, (19), 10 states have internal predecessors, (19), 3 states have call successors, (4), 2 states have call predecessors, (4), 4 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4) [2024-09-15 20:27:25,227 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 37 transitions. [2024-09-15 20:27:25,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2024-09-15 20:27:25,228 INFO L208 NwaCegarLoop]: Found error trace [2024-09-15 20:27:25,228 INFO L216 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1] [2024-09-15 20:27:25,246 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-09-15 20:27:25,432 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2024-09-15 20:27:25,433 INFO L399 AbstractCegarLoop]: === Iteration 8 === Targeting func_to_recursive_line_26_to_34_0Err0REQUIRES_VIOLATIONPRE_CONDITION === [ULTIMATE.startErr0REQUIRES_VIOLATIONPRE_CONDITION, func_to_recursive_line_26_to_34_0Err0REQUIRES_VIOLATIONPRE_CONDITION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-09-15 20:27:25,433 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-15 20:27:25,433 INFO L85 PathProgramCache]: Analyzing trace with hash 1868827673, now seen corresponding path program 3 times [2024-09-15 20:27:25,433 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-15 20:27:25,433 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [921962409] [2024-09-15 20:27:25,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-15 20:27:25,434 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-15 20:27:25,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-15 20:27:25,498 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [153716084] [2024-09-15 20:27:25,498 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-09-15 20:27:25,498 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-15 20:27:25,498 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-15 20:27:25,500 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-15 20:27:25,504 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-09-15 20:27:25,832 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2024-09-15 20:27:25,832 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-15 20:27:25,836 INFO L262 TraceCheckSpWp]: Trace formula consists of 322 conjuncts, 153 conjuncts are in the unsatisfiable core [2024-09-15 20:27:25,840 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-15 20:27:25,849 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-09-15 20:27:25,851 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-09-15 20:27:25,853 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-09-15 20:27:25,855 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-09-15 20:27:25,969 INFO L349 Elim1Store]: treesize reduction 188, result has 24.5 percent of original size [2024-09-15 20:27:25,970 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 4 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 6 new quantified variables, introduced 4 case distinctions, treesize of input 130 treesize of output 333 [2024-09-15 20:27:25,986 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 15 [2024-09-15 20:27:26,005 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 15 [2024-09-15 20:27:26,033 INFO L349 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2024-09-15 20:27:26,033 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 95 treesize of output 87 [2024-09-15 20:27:26,126 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 29 [2024-09-15 20:27:26,150 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 29 [2024-09-15 20:27:26,176 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 29 [2024-09-15 20:27:26,341 INFO L173 IndexEqualityManager]: detected equality via solver [2024-09-15 20:27:26,371 INFO L173 IndexEqualityManager]: detected equality via solver [2024-09-15 20:27:26,375 INFO L173 IndexEqualityManager]: detected equality via solver [2024-09-15 20:27:26,376 INFO L173 IndexEqualityManager]: detected equality via solver [2024-09-15 20:27:26,387 INFO L173 IndexEqualityManager]: detected equality via solver [2024-09-15 20:27:26,389 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 3 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 222 treesize of output 212 [2024-09-15 20:27:26,440 INFO L173 IndexEqualityManager]: detected equality via solver [2024-09-15 20:27:26,459 INFO L173 IndexEqualityManager]: detected equality via solver [2024-09-15 20:27:26,462 INFO L173 IndexEqualityManager]: detected equality via solver [2024-09-15 20:27:26,463 INFO L173 IndexEqualityManager]: detected equality via solver [2024-09-15 20:27:26,469 INFO L173 IndexEqualityManager]: detected equality via solver [2024-09-15 20:27:26,471 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 3 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 254 treesize of output 244 [2024-09-15 20:27:26,794 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-09-15 20:27:26,795 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-09-15 20:27:26,795 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-09-15 20:27:26,863 INFO L349 Elim1Store]: treesize reduction 122, result has 17.0 percent of original size [2024-09-15 20:27:26,863 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 6 new quantified variables, introduced 6 case distinctions, treesize of input 2074 treesize of output 1974 [2024-09-15 20:27:26,912 INFO L173 IndexEqualityManager]: detected equality via solver [2024-09-15 20:27:26,919 INFO L349 Elim1Store]: treesize reduction 69, result has 1.4 percent of original size [2024-09-15 20:27:26,919 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 52 treesize of output 21 [2024-09-15 20:27:26,937 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 61 treesize of output 31 [2024-09-15 20:27:27,404 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-09-15 20:27:27,405 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-09-15 20:27:27,406 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-09-15 20:27:27,407 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-09-15 20:27:27,408 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-09-15 20:27:27,409 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-09-15 20:27:27,479 INFO L349 Elim1Store]: treesize reduction 112, result has 36.0 percent of original size [2024-09-15 20:27:27,480 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 84 treesize of output 131 [2024-09-15 20:27:27,496 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 11 [2024-09-15 20:27:27,521 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 11 [2024-09-15 20:27:27,561 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 50 [2024-09-15 20:27:27,643 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 50 [2024-09-15 20:27:27,672 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 86 treesize of output 83 [2024-09-15 20:27:27,777 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 128 treesize of output 113 [2024-09-15 20:27:27,831 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 189 treesize of output 171 [2024-09-15 20:27:27,949 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 137 treesize of output 119 [2024-09-15 20:27:28,223 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-09-15 20:27:28,224 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-09-15 20:27:28,225 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-09-15 20:27:28,228 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 43 [2024-09-15 20:27:28,231 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 11 [2024-09-15 20:27:28,239 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 11 [2024-09-15 20:27:28,464 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-09-15 20:27:28,466 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-09-15 20:27:28,504 INFO L349 Elim1Store]: treesize reduction 47, result has 28.8 percent of original size [2024-09-15 20:27:28,504 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 5 case distinctions, treesize of input 234 treesize of output 98 [2024-09-15 20:27:28,521 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-09-15 20:27:28,522 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 20 [2024-09-15 20:27:28,527 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 7 [2024-09-15 20:27:28,658 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 39 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-15 20:27:28,659 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-15 20:27:29,102 WARN L854 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_376 (Array Int Int))) (let ((.cse13 (store |c_#memory_int| c_func_to_recursive_line_26_to_34_0_~c.base v_ArrVal_376))) (let ((.cse14 (select .cse13 c_func_to_recursive_line_26_to_34_0_~y.base))) (let ((.cse12 (select .cse14 c_func_to_recursive_line_26_to_34_0_~y.offset))) (let ((.cse8 (store .cse14 c_func_to_recursive_line_26_to_34_0_~y.offset (+ .cse12 1)))) (let ((.cse10 (store .cse13 c_func_to_recursive_line_26_to_34_0_~y.base .cse8))) (let ((.cse6 (let ((.cse11 (select .cse10 c_func_to_recursive_line_26_to_34_0_~x.base))) (store .cse11 c_func_to_recursive_line_26_to_34_0_~x.offset (+ (select .cse11 c_func_to_recursive_line_26_to_34_0_~x.offset) .cse12 1))))) (let ((.cse1 (let ((.cse9 (select (store .cse10 c_func_to_recursive_line_26_to_34_0_~x.base .cse6) c_func_to_recursive_line_26_to_34_0_~c.base))) (store .cse9 c_func_to_recursive_line_26_to_34_0_~c.offset (+ (select .cse9 c_func_to_recursive_line_26_to_34_0_~c.offset) 1))))) (let ((.cse7 (select (store (store (store |c_#memory_int| c_func_to_recursive_line_26_to_34_0_~y.base .cse8) c_func_to_recursive_line_26_to_34_0_~x.base .cse6) c_func_to_recursive_line_26_to_34_0_~c.base .cse1) c_func_to_recursive_line_26_to_34_0_~y.base))) (let ((.cse5 (select .cse7 c_func_to_recursive_line_26_to_34_0_~y.offset))) (let ((.cse2 (store .cse7 c_func_to_recursive_line_26_to_34_0_~y.offset (+ .cse5 1)))) (let ((.cse3 (select (store (store (store |c_#memory_int| c_func_to_recursive_line_26_to_34_0_~x.base .cse6) c_func_to_recursive_line_26_to_34_0_~c.base .cse1) c_func_to_recursive_line_26_to_34_0_~y.base .cse2) c_func_to_recursive_line_26_to_34_0_~x.base))) (let ((.cse4 (select .cse3 c_func_to_recursive_line_26_to_34_0_~x.offset))) (= (let ((.cse0 (select (select (store (store (store |c_#memory_int| c_func_to_recursive_line_26_to_34_0_~c.base .cse1) c_func_to_recursive_line_26_to_34_0_~y.base .cse2) c_func_to_recursive_line_26_to_34_0_~x.base (store .cse3 c_func_to_recursive_line_26_to_34_0_~x.offset (+ .cse4 .cse5 1))) c_func_to_recursive_line_26_to_34_0_~y.base) c_func_to_recursive_line_26_to_34_0_~y.offset))) (+ .cse0 (* .cse0 .cse0))) (+ (* 2 .cse5) 2 (* .cse4 2)))))))))))))))) is different from false [2024-09-15 20:27:29,201 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-15 20:27:29,201 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [921962409] [2024-09-15 20:27:29,201 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-15 20:27:29,201 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [153716084] [2024-09-15 20:27:29,201 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [153716084] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-15 20:27:29,202 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-15 20:27:29,202 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2024-09-15 20:27:29,202 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2119406609] [2024-09-15 20:27:29,202 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-15 20:27:29,202 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-09-15 20:27:29,202 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-15 20:27:29,203 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-09-15 20:27:29,203 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=390, Unknown=4, NotChecked=40, Total=506 [2024-09-15 20:27:29,203 INFO L87 Difference]: Start difference. First operand 36 states and 37 transitions. Second operand has 17 states, 14 states have (on average 1.7857142857142858) internal successors, (25), 12 states have internal predecessors, (25), 6 states have call successors, (7), 7 states have call predecessors, (7), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-09-15 20:27:29,828 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-15 20:27:29,828 INFO L93 Difference]: Finished difference Result 48 states and 49 transitions. [2024-09-15 20:27:29,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-09-15 20:27:29,829 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 14 states have (on average 1.7857142857142858) internal successors, (25), 12 states have internal predecessors, (25), 6 states have call successors, (7), 7 states have call predecessors, (7), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 35 [2024-09-15 20:27:29,829 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-15 20:27:29,830 INFO L225 Difference]: With dead ends: 48 [2024-09-15 20:27:29,830 INFO L226 Difference]: Without dead ends: 48 [2024-09-15 20:27:29,830 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 28 SyntacticMatches, 2 SemanticMatches, 26 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 90 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=115, Invalid=586, Unknown=5, NotChecked=50, Total=756 [2024-09-15 20:27:29,831 INFO L434 NwaCegarLoop]: 16 mSDtfsCounter, 15 mSDsluCounter, 89 mSDsCounter, 0 mSdLazyCounter, 347 mSolverCounterSat, 7 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 105 SdHoareTripleChecker+Invalid, 357 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 347 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-09-15 20:27:29,831 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 105 Invalid, 357 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 347 Invalid, 3 Unknown, 0 Unchecked, 0.4s Time] [2024-09-15 20:27:29,831 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2024-09-15 20:27:29,834 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 46. [2024-09-15 20:27:29,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 32 states have (on average 1.0) internal successors, (32), 32 states have internal predecessors, (32), 10 states have call successors, (10), 9 states have call predecessors, (10), 4 states have return successors, (5), 4 states have call predecessors, (5), 5 states have call successors, (5) [2024-09-15 20:27:29,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 47 transitions. [2024-09-15 20:27:29,835 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 47 transitions. Word has length 35 [2024-09-15 20:27:29,835 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-15 20:27:29,836 INFO L474 AbstractCegarLoop]: Abstraction has 46 states and 47 transitions. [2024-09-15 20:27:29,836 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 14 states have (on average 1.7857142857142858) internal successors, (25), 12 states have internal predecessors, (25), 6 states have call successors, (7), 7 states have call predecessors, (7), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-09-15 20:27:29,836 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 47 transitions. [2024-09-15 20:27:29,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2024-09-15 20:27:29,837 INFO L208 NwaCegarLoop]: Found error trace [2024-09-15 20:27:29,837 INFO L216 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1] [2024-09-15 20:27:29,845 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-09-15 20:27:30,037 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,7 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-15 20:27:30,038 INFO L399 AbstractCegarLoop]: === Iteration 9 === Targeting func_to_recursive_line_26_to_34_0Err0REQUIRES_VIOLATIONPRE_CONDITION === [ULTIMATE.startErr0REQUIRES_VIOLATIONPRE_CONDITION, func_to_recursive_line_26_to_34_0Err0REQUIRES_VIOLATIONPRE_CONDITION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-09-15 20:27:30,038 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-15 20:27:30,038 INFO L85 PathProgramCache]: Analyzing trace with hash 1753459472, now seen corresponding path program 4 times [2024-09-15 20:27:30,038 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-15 20:27:30,038 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1701515402] [2024-09-15 20:27:30,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-15 20:27:30,038 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-15 20:27:30,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-15 20:27:30,141 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1154610357] [2024-09-15 20:27:30,141 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-09-15 20:27:30,141 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-15 20:27:30,141 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-15 20:27:30,143 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-15 20:27:30,145 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-09-15 20:27:30,987 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-09-15 20:27:30,987 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-15 20:27:30,992 WARN L260 TraceCheckSpWp]: Trace formula consists of 313 conjuncts, 175 conjuncts are in the unsatisfiable core [2024-09-15 20:27:30,997 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-15 20:27:31,699 INFO L349 Elim1Store]: treesize reduction 417, result has 37.5 percent of original size [2024-09-15 20:27:31,699 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 6 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 9 new quantified variables, introduced 27 case distinctions, treesize of input 1962 treesize of output 910 [2024-09-15 20:27:48,083 WARN L293 SmtUtils]: Spent 8.14s on a formula simplification that was a NOOP. DAG size: 12 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-09-15 20:27:53,699 INFO L173 IndexEqualityManager]: detected equality via solver [2024-09-15 20:27:53,705 INFO L173 IndexEqualityManager]: detected equality via solver [2024-09-15 20:27:53,728 INFO L349 Elim1Store]: treesize reduction 13, result has 38.1 percent of original size [2024-09-15 20:27:53,728 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 606 treesize of output 576 [2024-09-15 20:27:53,789 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 10 [2024-09-15 20:27:53,819 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-09-15 20:27:53,819 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 36 treesize of output 40 [2024-09-15 20:27:53,852 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 16 [2024-09-15 20:27:53,940 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 10 [2024-09-15 20:27:53,963 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-09-15 20:27:53,963 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 363 treesize of output 355 [2024-09-15 20:27:54,116 INFO L173 IndexEqualityManager]: detected equality via solver [2024-09-15 20:27:54,120 INFO L173 IndexEqualityManager]: detected equality via solver [2024-09-15 20:27:54,138 INFO L349 Elim1Store]: treesize reduction 13, result has 38.1 percent of original size [2024-09-15 20:27:54,138 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 5 case distinctions, treesize of input 390 treesize of output 350 [2024-09-15 20:27:54,195 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 26 [2024-09-15 20:27:54,227 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 40 [2024-09-15 20:27:54,287 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-09-15 20:27:54,288 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 58 treesize of output 60 [2024-09-15 20:27:54,351 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-09-15 20:27:54,352 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 104 treesize of output 94 [2024-09-15 20:27:54,496 INFO L173 IndexEqualityManager]: detected equality via solver [2024-09-15 20:27:54,511 INFO L349 Elim1Store]: treesize reduction 13, result has 38.1 percent of original size [2024-09-15 20:27:54,512 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 283 treesize of output 247 [2024-09-15 20:28:10,591 WARN L293 SmtUtils]: Spent 8.00s on a formula simplification that was a NOOP. DAG size: 12 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-09-15 20:28:18,788 WARN L293 SmtUtils]: Spent 8.20s on a formula simplification that was a NOOP. DAG size: 12 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-09-15 20:28:22,873 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 7 [2024-09-15 20:28:22,891 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-09-15 20:28:22,891 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 216 treesize of output 200 [2024-09-15 20:28:29,465 INFO L173 IndexEqualityManager]: detected equality via solver [2024-09-15 20:28:29,471 INFO L173 IndexEqualityManager]: detected equality via solver [2024-09-15 20:28:29,486 INFO L349 Elim1Store]: treesize reduction 13, result has 38.1 percent of original size [2024-09-15 20:28:29,486 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 637 treesize of output 615 [2024-09-15 20:28:29,502 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 7 [2024-09-15 20:28:29,510 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-09-15 20:28:29,510 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 30 [2024-09-15 20:28:29,563 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5 [2024-09-15 20:28:29,578 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-09-15 20:28:29,579 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 48 treesize of output 48 [2024-09-15 20:28:29,621 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5 [2024-09-15 20:28:29,631 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-09-15 20:28:29,631 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 113 treesize of output 111 [2024-09-15 20:28:29,652 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 48 [2024-09-15 20:28:29,657 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 19 [2024-09-15 20:28:29,666 INFO L349 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2024-09-15 20:28:29,666 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 102 treesize of output 88 [2024-09-15 20:28:37,699 WARN L293 SmtUtils]: Spent 8.01s on a formula simplification that was a NOOP. DAG size: 11 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-09-15 20:28:37,770 INFO L173 IndexEqualityManager]: detected equality via solver [2024-09-15 20:28:37,779 INFO L173 IndexEqualityManager]: detected equality via solver [2024-09-15 20:28:37,803 INFO L349 Elim1Store]: treesize reduction 24, result has 25.0 percent of original size [2024-09-15 20:28:37,804 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 684 treesize of output 629 [2024-09-15 20:28:37,880 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2024-09-15 20:28:37,921 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-09-15 20:28:37,921 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 29 treesize of output 33 [2024-09-15 20:28:37,997 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2024-09-15 20:28:38,019 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-09-15 20:28:38,020 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 34 [2024-09-15 20:28:38,059 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 7 [2024-09-15 20:28:38,161 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2024-09-15 20:28:38,180 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-09-15 20:28:38,180 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 126 treesize of output 122 [2024-09-15 20:29:07,003 WARN L293 SmtUtils]: Spent 28.50s on a formula simplification. DAG size of input: 264 DAG size of output: 247 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-09-15 20:29:32,034 WARN L293 SmtUtils]: Spent 5.11s on a formula simplification that was a NOOP. DAG size: 12 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-09-15 20:29:52,115 WARN L876 $PredicateComparison]: unable to prove that (let ((.cse7 (select (select |c_#memory_int| |c_func_to_recursive_line_26_to_34_0_#in~x.base|) |c_func_to_recursive_line_26_to_34_0_#in~x.offset|))) (let ((.cse58 (= |c_func_to_recursive_line_26_to_34_0_#in~c.base| |c_func_to_recursive_line_26_to_34_0_#in~x.base|)) (.cse4 (* .cse7 2)) (.cse8 (* .cse7 .cse7)) (.cse10 (select (select |c_#memory_int| |c_func_to_recursive_line_26_to_34_0_#in~y.base|) |c_func_to_recursive_line_26_to_34_0_#in~y.offset|)) (.cse19 (select (select |c_#memory_int| |c_func_to_recursive_line_26_to_34_0_#in~c.base|) |c_func_to_recursive_line_26_to_34_0_#in~c.offset|)) (.cse59 (= |c_func_to_recursive_line_26_to_34_0_#in~c.offset| |c_func_to_recursive_line_26_to_34_0_#in~x.offset|))) (let ((.cse30 (= |c_func_to_recursive_line_26_to_34_0_#in~c.offset| |c_func_to_recursive_line_26_to_34_0_#in~y.offset|)) (.cse33 (= |c_func_to_recursive_line_26_to_34_0_#in~c.base| |c_func_to_recursive_line_26_to_34_0_#in~y.base|)) (.cse25 (not .cse59)) (.cse26 (exists ((v_DerPreprocessor_279 (Array Int Int)) (v_DerPreprocessor_288 (Array Int Int)) (v_DerPreprocessor_289 (Array Int Int)) (v_DerPreprocessor_275 (Array Int Int)) (v_DerPreprocessor_273 (Array Int Int)) (v_DerPreprocessor_274 (Array Int Int)) (v_prenex_420 (Array Int Int)) (v_prenex_421 (Array Int Int)) (v_DerPreprocessor_280 (Array Int Int)) (v_DerPreprocessor_281 (Array Int Int)) (v_DerPreprocessor_290 (Array Int Int)) (v_prenex_419 (Array Int Int)) (v_prenex_717 (Array Int Int)) (v_prenex_718 (Array Int Int)) (v_prenex_719 (Array Int Int))) (let ((.cse79 (store (store (store |c_#memory_int| |c_func_to_recursive_line_26_to_34_0_#in~c.base| v_DerPreprocessor_279) |c_func_to_recursive_line_26_to_34_0_#in~y.base| v_DerPreprocessor_280) |c_func_to_recursive_line_26_to_34_0_#in~x.base| v_DerPreprocessor_281))) (let ((.cse67 (select .cse79 |c_func_to_recursive_line_26_to_34_0_#in~c.base|))) (let ((.cse78 (store (store (store |c_#memory_int| |c_func_to_recursive_line_26_to_34_0_#in~c.base| v_DerPreprocessor_288) |c_func_to_recursive_line_26_to_34_0_#in~y.base| v_DerPreprocessor_289) |c_func_to_recursive_line_26_to_34_0_#in~x.base| v_DerPreprocessor_290)) (.cse64 (select .cse67 |c_func_to_recursive_line_26_to_34_0_#in~c.offset|)) (.cse76 (store (store (store |c_#memory_int| |c_func_to_recursive_line_26_to_34_0_#in~c.base| v_prenex_420) |c_func_to_recursive_line_26_to_34_0_#in~y.base| v_prenex_421) |c_func_to_recursive_line_26_to_34_0_#in~x.base| v_prenex_419)) (.cse77 (store (store (store |c_#memory_int| |c_func_to_recursive_line_26_to_34_0_#in~c.base| v_prenex_718) |c_func_to_recursive_line_26_to_34_0_#in~y.base| v_prenex_719) |c_func_to_recursive_line_26_to_34_0_#in~x.base| v_prenex_717)) (.cse80 (store (store (store |c_#memory_int| |c_func_to_recursive_line_26_to_34_0_#in~c.base| v_DerPreprocessor_273) |c_func_to_recursive_line_26_to_34_0_#in~y.base| v_DerPreprocessor_274) |c_func_to_recursive_line_26_to_34_0_#in~x.base| v_DerPreprocessor_275))) (let ((.cse63 (select .cse80 |c_func_to_recursive_line_26_to_34_0_#in~c.base|)) (.cse66 (select .cse80 |c_func_to_recursive_line_26_to_34_0_#in~y.base|)) (.cse71 (select .cse77 |c_func_to_recursive_line_26_to_34_0_#in~c.base|)) (.cse70 (select .cse76 |c_func_to_recursive_line_26_to_34_0_#in~c.base|)) (.cse68 (+ .cse64 1)) (.cse65 (+ .cse64 .cse7 1)) (.cse74 (select .cse79 |c_func_to_recursive_line_26_to_34_0_#in~y.base|)) (.cse72 (select .cse78 |c_func_to_recursive_line_26_to_34_0_#in~c.base|)) (.cse75 (select .cse78 |c_func_to_recursive_line_26_to_34_0_#in~y.base|)) (.cse61 (* .cse64 2)) (.cse62 (select v_DerPreprocessor_290 |c_func_to_recursive_line_26_to_34_0_#in~x.offset|)) (.cse69 (select .cse77 |c_func_to_recursive_line_26_to_34_0_#in~y.base|)) (.cse73 (select .cse76 |c_func_to_recursive_line_26_to_34_0_#in~y.base|))) (and (= (+ .cse61 .cse4 2) (+ (select v_DerPreprocessor_281 |c_func_to_recursive_line_26_to_34_0_#in~x.offset|) (* 2 .cse62))) (= (+ .cse61 1) (select v_prenex_419 |c_func_to_recursive_line_26_to_34_0_#in~x.offset|)) (= (select .cse63 |c_func_to_recursive_line_26_to_34_0_#in~c.offset|) .cse64) (= (+ (* 3 .cse62) (* (* .cse64 .cse62) 2) (* (* .cse7 .cse62) 2)) (+ (* .cse62 .cse62) .cse7 (* 2 (* .cse64 .cse7)) (* .cse64 3) 2 (* .cse64 .cse64) .cse8)) (= .cse65 (+ .cse62 .cse10)) (= v_DerPreprocessor_274 .cse66) (= (select v_prenex_717 |c_func_to_recursive_line_26_to_34_0_#in~x.offset|) (+ .cse61 2)) (= .cse67 v_DerPreprocessor_279) (= v_DerPreprocessor_273 .cse63) (= .cse68 (select .cse69 |c_func_to_recursive_line_26_to_34_0_#in~y.offset|)) (= .cse64 (select .cse70 |c_func_to_recursive_line_26_to_34_0_#in~c.offset|)) (= .cse64 (select .cse71 |c_func_to_recursive_line_26_to_34_0_#in~c.offset|)) (= .cse65 (+ .cse62 (select .cse66 |c_func_to_recursive_line_26_to_34_0_#in~y.offset|))) (= .cse72 v_DerPreprocessor_288) (= .cse68 (select .cse73 |c_func_to_recursive_line_26_to_34_0_#in~y.offset|)) (= .cse74 v_DerPreprocessor_280) (= .cse71 v_prenex_718) (= .cse70 v_prenex_420) (= .cse68 (select .cse75 |c_func_to_recursive_line_26_to_34_0_#in~y.offset|)) (= .cse65 (+ (select .cse74 |c_func_to_recursive_line_26_to_34_0_#in~y.offset|) .cse62)) (= .cse64 (select .cse72 |c_func_to_recursive_line_26_to_34_0_#in~c.offset|)) (= .cse75 v_DerPreprocessor_289) (= (+ .cse61 .cse7 1) (+ .cse62 (select v_DerPreprocessor_275 |c_func_to_recursive_line_26_to_34_0_#in~x.offset|))) (= v_prenex_719 .cse69) (= .cse64 .cse19) (= .cse73 v_prenex_421)))))))) (.cse29 (not .cse58))) (or (exists ((v_DerPreprocessor_275 (Array Int Int)) (v_DerPreprocessor_273 (Array Int Int)) (v_DerPreprocessor_274 (Array Int Int))) (let ((.cse24 (store (store (store |c_#memory_int| |c_func_to_recursive_line_26_to_34_0_#in~c.base| v_DerPreprocessor_273) |c_func_to_recursive_line_26_to_34_0_#in~y.base| v_DerPreprocessor_274) |c_func_to_recursive_line_26_to_34_0_#in~x.base| v_DerPreprocessor_275))) (let ((.cse1 (select .cse24 |c_func_to_recursive_line_26_to_34_0_#in~c.base|)) (.cse0 (select .cse24 |c_func_to_recursive_line_26_to_34_0_#in~y.base|))) (and (= v_DerPreprocessor_274 .cse0) (= v_DerPreprocessor_273 .cse1) (exists ((v_prenex_717 (Array Int Int)) (v_prenex_718 (Array Int Int)) (v_prenex_719 (Array Int Int))) (let ((.cse23 (store (store (store |c_#memory_int| |c_func_to_recursive_line_26_to_34_0_#in~c.base| v_prenex_718) |c_func_to_recursive_line_26_to_34_0_#in~y.base| v_prenex_719) |c_func_to_recursive_line_26_to_34_0_#in~x.base| v_prenex_717))) (let ((.cse14 (select .cse23 |c_func_to_recursive_line_26_to_34_0_#in~c.base|)) (.cse13 (select .cse23 |c_func_to_recursive_line_26_to_34_0_#in~y.base|))) (and (exists ((v_DerPreprocessor_288 (Array Int Int)) (v_DerPreprocessor_289 (Array Int Int)) (v_DerPreprocessor_290 (Array Int Int))) (let ((.cse22 (store (store (store |c_#memory_int| |c_func_to_recursive_line_26_to_34_0_#in~c.base| v_DerPreprocessor_288) |c_func_to_recursive_line_26_to_34_0_#in~y.base| v_DerPreprocessor_289) |c_func_to_recursive_line_26_to_34_0_#in~x.base| v_DerPreprocessor_290))) (let ((.cse18 (select .cse22 |c_func_to_recursive_line_26_to_34_0_#in~c.base|)) (.cse17 (select .cse22 |c_func_to_recursive_line_26_to_34_0_#in~y.base|))) (and (exists ((v_prenex_419 (Array Int Int)) (v_prenex_420 (Array Int Int)) (v_prenex_421 (Array Int Int))) (let ((.cse21 (store (store (store |c_#memory_int| |c_func_to_recursive_line_26_to_34_0_#in~c.base| v_prenex_420) |c_func_to_recursive_line_26_to_34_0_#in~y.base| v_prenex_421) |c_func_to_recursive_line_26_to_34_0_#in~x.base| v_prenex_419))) (let ((.cse2 (select .cse21 |c_func_to_recursive_line_26_to_34_0_#in~c.base|)) (.cse15 (select .cse21 |c_func_to_recursive_line_26_to_34_0_#in~y.base|))) (and (= .cse2 v_prenex_420) (exists ((v_DerPreprocessor_279 (Array Int Int)) (v_DerPreprocessor_280 (Array Int Int)) (v_DerPreprocessor_281 (Array Int Int))) (let ((.cse20 (store (store (store |c_#memory_int| |c_func_to_recursive_line_26_to_34_0_#in~c.base| v_DerPreprocessor_279) |c_func_to_recursive_line_26_to_34_0_#in~y.base| v_DerPreprocessor_280) |c_func_to_recursive_line_26_to_34_0_#in~x.base| v_DerPreprocessor_281))) (let ((.cse11 (select .cse20 |c_func_to_recursive_line_26_to_34_0_#in~c.base|))) (let ((.cse6 (select .cse11 |c_func_to_recursive_line_26_to_34_0_#in~c.offset|))) (let ((.cse12 (+ .cse6 1)) (.cse9 (+ .cse6 .cse7 1)) (.cse16 (select .cse20 |c_func_to_recursive_line_26_to_34_0_#in~y.base|)) (.cse3 (* .cse6 2)) (.cse5 (select v_DerPreprocessor_290 |c_func_to_recursive_line_26_to_34_0_#in~x.offset|))) (and (= (+ .cse3 .cse4 2) (+ (select v_DerPreprocessor_281 |c_func_to_recursive_line_26_to_34_0_#in~x.offset|) (* 2 .cse5))) (= (+ .cse3 1) (select v_prenex_419 |c_func_to_recursive_line_26_to_34_0_#in~x.offset|)) (= (select .cse1 |c_func_to_recursive_line_26_to_34_0_#in~c.offset|) .cse6) (= (+ (* 3 .cse5) (* (* .cse6 .cse5) 2) (* (* .cse7 .cse5) 2)) (+ (* .cse5 .cse5) .cse7 (* 2 (* .cse6 .cse7)) (* .cse6 3) 2 (* .cse6 .cse6) .cse8)) (= .cse9 (+ .cse5 .cse10)) (= (select v_prenex_717 |c_func_to_recursive_line_26_to_34_0_#in~x.offset|) (+ .cse3 2)) (= .cse11 v_DerPreprocessor_279) (= .cse3 .cse5) (= .cse12 (select .cse13 |c_func_to_recursive_line_26_to_34_0_#in~y.offset|)) (= .cse6 (select .cse2 |c_func_to_recursive_line_26_to_34_0_#in~c.offset|)) (= .cse6 (select .cse14 |c_func_to_recursive_line_26_to_34_0_#in~c.offset|)) (= .cse9 (+ .cse5 (select .cse0 |c_func_to_recursive_line_26_to_34_0_#in~y.offset|))) (= .cse12 (select .cse15 |c_func_to_recursive_line_26_to_34_0_#in~y.offset|)) (= .cse16 v_DerPreprocessor_280) (= .cse12 (select .cse17 |c_func_to_recursive_line_26_to_34_0_#in~y.offset|)) (= .cse9 (+ (select .cse16 |c_func_to_recursive_line_26_to_34_0_#in~y.offset|) .cse5)) (= .cse6 (select .cse18 |c_func_to_recursive_line_26_to_34_0_#in~c.offset|)) (= (+ .cse3 .cse7 1) (+ .cse5 (select v_DerPreprocessor_275 |c_func_to_recursive_line_26_to_34_0_#in~x.offset|))) (= .cse6 .cse19))))))) (= .cse15 v_prenex_421))))) (= .cse18 v_DerPreprocessor_288) (= .cse17 v_DerPreprocessor_289))))) (= .cse14 v_prenex_718) (= v_prenex_719 .cse13))))))))) (and .cse25 .cse26) (and (= |c_func_to_recursive_line_26_to_34_0_#in~x.base| |c_func_to_recursive_line_26_to_34_0_#in~y.base|) (let ((.cse28 (= (mod .cse7 2) 0))) (or (and (let ((.cse27 (div .cse7 2))) (= (* 3 .cse27) (+ 2 (* .cse27 .cse27)))) .cse28 (or .cse25 .cse29)) (and .cse30 (= (let ((.cse31 (div (* (- 1) .cse7) 2))) (+ (* .cse31 5) 6 (* .cse31 .cse31))) 0) (exists ((v_DerPreprocessor_268 (Array Int Int)) (v_DerPreprocessor_269 (Array Int Int)) (v_DerPreprocessor_267 (Array Int Int))) (let ((.cse32 (store (store (store |c_#memory_int| |c_func_to_recursive_line_26_to_34_0_#in~c.base| v_DerPreprocessor_267) |c_func_to_recursive_line_26_to_34_0_#in~y.base| v_DerPreprocessor_268) |c_func_to_recursive_line_26_to_34_0_#in~x.base| v_DerPreprocessor_269))) (and (= .cse7 (+ (select v_DerPreprocessor_269 |c_func_to_recursive_line_26_to_34_0_#in~x.offset|) 1)) (= v_DerPreprocessor_268 (select .cse32 |c_func_to_recursive_line_26_to_34_0_#in~y.base|)) (= (select .cse32 |c_func_to_recursive_line_26_to_34_0_#in~c.base|) v_DerPreprocessor_267)))) .cse28 .cse33))) (= |c_func_to_recursive_line_26_to_34_0_#in~y.offset| |c_func_to_recursive_line_26_to_34_0_#in~x.offset|)) (and .cse30 .cse33 (or (exists ((v_DerPreprocessor_266 (Array Int Int)) (v_DerPreprocessor_264 (Array Int Int)) (v_DerPreprocessor_265 (Array Int Int))) (let ((.cse34 (store (store (store |c_#memory_int| |c_func_to_recursive_line_26_to_34_0_#in~c.base| v_DerPreprocessor_264) |c_func_to_recursive_line_26_to_34_0_#in~y.base| v_DerPreprocessor_265) |c_func_to_recursive_line_26_to_34_0_#in~x.base| v_DerPreprocessor_266))) (let ((.cse40 (select .cse34 |c_func_to_recursive_line_26_to_34_0_#in~y.base|))) (and (= (select .cse34 |c_func_to_recursive_line_26_to_34_0_#in~c.base|) v_DerPreprocessor_264) (exists ((v_DerPreprocessor_284 (Array Int Int)) (v_DerPreprocessor_282 (Array Int Int)) (v_DerPreprocessor_283 (Array Int Int))) (let ((.cse42 (store (store (store |c_#memory_int| |c_func_to_recursive_line_26_to_34_0_#in~c.base| v_DerPreprocessor_282) |c_func_to_recursive_line_26_to_34_0_#in~y.base| v_DerPreprocessor_283) |c_func_to_recursive_line_26_to_34_0_#in~x.base| v_DerPreprocessor_284))) (let ((.cse35 (select .cse42 |c_func_to_recursive_line_26_to_34_0_#in~y.base|))) (and (exists ((v_DerPreprocessor_279 (Array Int Int)) (v_DerPreprocessor_280 (Array Int Int)) (v_DerPreprocessor_281 (Array Int Int))) (let ((.cse37 (store (store (store |c_#memory_int| |c_func_to_recursive_line_26_to_34_0_#in~c.base| v_DerPreprocessor_279) |c_func_to_recursive_line_26_to_34_0_#in~y.base| v_DerPreprocessor_280) |c_func_to_recursive_line_26_to_34_0_#in~x.base| v_DerPreprocessor_281))) (let ((.cse39 (select .cse37 |c_func_to_recursive_line_26_to_34_0_#in~y.base|))) (let ((.cse41 (select .cse39 |c_func_to_recursive_line_26_to_34_0_#in~y.offset|))) (let ((.cse36 (+ .cse41 1)) (.cse38 (* 2 .cse41))) (and (= (select .cse35 |c_func_to_recursive_line_26_to_34_0_#in~y.offset|) .cse36) (= (select .cse37 |c_func_to_recursive_line_26_to_34_0_#in~c.base|) v_DerPreprocessor_279) (= .cse10 .cse36) (= .cse7 .cse38) (= .cse39 v_DerPreprocessor_280) (= (select v_DerPreprocessor_266 |c_func_to_recursive_line_26_to_34_0_#in~x.offset|) (+ .cse38 1)) (= (select .cse40 |c_func_to_recursive_line_26_to_34_0_#in~y.offset|) .cse36) (= (+ .cse38 2) (select v_DerPreprocessor_284 |c_func_to_recursive_line_26_to_34_0_#in~x.offset|)) (= .cse4 (+ (* .cse41 .cse41) 2 .cse41)) (= (select v_DerPreprocessor_281 |c_func_to_recursive_line_26_to_34_0_#in~x.offset|) .cse38))))))) (= .cse35 v_DerPreprocessor_283) (= v_DerPreprocessor_282 (select .cse42 |c_func_to_recursive_line_26_to_34_0_#in~c.base|)))))) (= v_DerPreprocessor_265 .cse40))))) (and (exists ((v_DerPreprocessor_279 (Array Int Int)) (v_DerPreprocessor_266 (Array Int Int)) (v_DerPreprocessor_264 (Array Int Int)) (v_DerPreprocessor_265 (Array Int Int)) (v_DerPreprocessor_284 (Array Int Int)) (v_DerPreprocessor_282 (Array Int Int)) (v_DerPreprocessor_283 (Array Int Int)) (v_DerPreprocessor_280 (Array Int Int)) (v_DerPreprocessor_281 (Array Int Int))) (let ((.cse45 (store (store (store |c_#memory_int| |c_func_to_recursive_line_26_to_34_0_#in~c.base| v_DerPreprocessor_279) |c_func_to_recursive_line_26_to_34_0_#in~y.base| v_DerPreprocessor_280) |c_func_to_recursive_line_26_to_34_0_#in~x.base| v_DerPreprocessor_281))) (let ((.cse47 (select .cse45 |c_func_to_recursive_line_26_to_34_0_#in~y.base|))) (let ((.cse46 (store (store (store |c_#memory_int| |c_func_to_recursive_line_26_to_34_0_#in~c.base| v_DerPreprocessor_264) |c_func_to_recursive_line_26_to_34_0_#in~y.base| v_DerPreprocessor_265) |c_func_to_recursive_line_26_to_34_0_#in~x.base| v_DerPreprocessor_266)) (.cse51 (store (store (store |c_#memory_int| |c_func_to_recursive_line_26_to_34_0_#in~c.base| v_DerPreprocessor_282) |c_func_to_recursive_line_26_to_34_0_#in~y.base| v_DerPreprocessor_283) |c_func_to_recursive_line_26_to_34_0_#in~x.base| v_DerPreprocessor_284)) (.cse50 (select .cse47 |c_func_to_recursive_line_26_to_34_0_#in~y.offset|))) (let ((.cse44 (+ .cse50 1)) (.cse43 (select .cse51 |c_func_to_recursive_line_26_to_34_0_#in~y.base|)) (.cse48 (* 2 .cse50)) (.cse49 (select .cse46 |c_func_to_recursive_line_26_to_34_0_#in~y.base|))) (and (= (select .cse43 |c_func_to_recursive_line_26_to_34_0_#in~y.offset|) .cse44) (= (select .cse45 |c_func_to_recursive_line_26_to_34_0_#in~c.base|) v_DerPreprocessor_279) (= .cse10 .cse44) (= (select .cse46 |c_func_to_recursive_line_26_to_34_0_#in~c.base|) v_DerPreprocessor_264) (= .cse47 v_DerPreprocessor_280) (= (select v_DerPreprocessor_266 |c_func_to_recursive_line_26_to_34_0_#in~x.offset|) (+ .cse48 1)) (= (select .cse49 |c_func_to_recursive_line_26_to_34_0_#in~y.offset|) .cse44) (= (+ .cse48 2) (select v_DerPreprocessor_284 |c_func_to_recursive_line_26_to_34_0_#in~x.offset|)) (= .cse43 v_DerPreprocessor_283) (= .cse4 (+ (* .cse50 .cse50) 2 .cse50)) (= v_DerPreprocessor_282 (select .cse51 |c_func_to_recursive_line_26_to_34_0_#in~c.base|)) (= (select v_DerPreprocessor_281 |c_func_to_recursive_line_26_to_34_0_#in~x.offset|) .cse48) (= v_DerPreprocessor_265 .cse49))))))) .cse25) (and .cse29 (exists ((v_DerPreprocessor_279 (Array Int Int)) (v_DerPreprocessor_266 (Array Int Int)) (v_DerPreprocessor_264 (Array Int Int)) (v_DerPreprocessor_265 (Array Int Int)) (v_DerPreprocessor_284 (Array Int Int)) (v_DerPreprocessor_282 (Array Int Int)) (v_DerPreprocessor_283 (Array Int Int)) (v_DerPreprocessor_280 (Array Int Int)) (v_DerPreprocessor_281 (Array Int Int))) (let ((.cse54 (store (store (store |c_#memory_int| |c_func_to_recursive_line_26_to_34_0_#in~c.base| v_DerPreprocessor_279) |c_func_to_recursive_line_26_to_34_0_#in~y.base| v_DerPreprocessor_280) |c_func_to_recursive_line_26_to_34_0_#in~x.base| v_DerPreprocessor_281))) (let ((.cse57 (select (select .cse54 |c_func_to_recursive_line_26_to_34_0_#in~y.base|) |c_func_to_recursive_line_26_to_34_0_#in~y.offset|))) (let ((.cse55 (store (store (store |c_#memory_int| |c_func_to_recursive_line_26_to_34_0_#in~c.base| v_DerPreprocessor_264) |c_func_to_recursive_line_26_to_34_0_#in~y.base| v_DerPreprocessor_265) |c_func_to_recursive_line_26_to_34_0_#in~x.base| v_DerPreprocessor_266)) (.cse53 (+ .cse57 1)) (.cse52 (store (store (store |c_#memory_int| |c_func_to_recursive_line_26_to_34_0_#in~c.base| v_DerPreprocessor_282) |c_func_to_recursive_line_26_to_34_0_#in~y.base| v_DerPreprocessor_283) |c_func_to_recursive_line_26_to_34_0_#in~x.base| v_DerPreprocessor_284)) (.cse56 (* 2 .cse57))) (and (= (select (select .cse52 |c_func_to_recursive_line_26_to_34_0_#in~y.base|) |c_func_to_recursive_line_26_to_34_0_#in~y.offset|) .cse53) (= (select .cse54 |c_func_to_recursive_line_26_to_34_0_#in~c.base|) v_DerPreprocessor_279) (= .cse10 .cse53) (= (select .cse55 |c_func_to_recursive_line_26_to_34_0_#in~c.base|) v_DerPreprocessor_264) (= (select v_DerPreprocessor_266 |c_func_to_recursive_line_26_to_34_0_#in~x.offset|) (+ .cse56 1)) (= (select (select .cse55 |c_func_to_recursive_line_26_to_34_0_#in~y.base|) |c_func_to_recursive_line_26_to_34_0_#in~y.offset|) .cse53) (= (+ .cse56 2) (select v_DerPreprocessor_284 |c_func_to_recursive_line_26_to_34_0_#in~x.offset|)) (= .cse4 (+ (* .cse57 .cse57) 2 .cse57)) (= v_DerPreprocessor_282 (select .cse52 |c_func_to_recursive_line_26_to_34_0_#in~c.base|)) (= (select v_DerPreprocessor_281 |c_func_to_recursive_line_26_to_34_0_#in~x.offset|) .cse56))))))))) (and .cse26 .cse29) (let ((.cse60 (* .cse10 .cse10))) (and .cse58 .cse59 (= (mod (+ .cse60 .cse10) 2) 0) (= (+ (div (+ (* (- 1) .cse10) .cse60) 2) .cse10 1) .cse7))))))) is different from true