./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/loop-industry-pattern/aiob_1.c --full-output --procedureinliner.inline.calls.to.implemented.procedures NEVER --traceabstraction.positions.where.we.compute.the.hoare.annotation All --witnessprinter.yaml.format.version 2.1 --witnessprinter.generate.graphml.witnesses false --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e378df2c Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/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/AutomizerReach.xml -i ../sv-benchmarks/c/loop-industry-pattern/aiob_1.c -s /storage/repos/certificate-witnesses-artifact/automizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/certificate-witnesses-artifact/automizer --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash f089d1b40a76f9af7e090d21489c70b68a6ceb7402496399cd1357670ffd9b51 --procedureinliner.inline.calls.to.implemented.procedures NEVER --traceabstraction.positions.where.we.compute.the.hoare.annotation All --witnessprinter.yaml.format.version 2.1 --witnessprinter.generate.graphml.witnesses false --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dk.contract-modifies-e378df2-m [2024-10-15 14:20:06,815 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-15 14:20:06,873 INFO L114 SettingsManager]: Loading settings from /storage/repos/certificate-witnesses-artifact/automizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-15 14:20:06,878 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-15 14:20:06,880 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-15 14:20:06,902 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-15 14:20:06,903 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-15 14:20:06,903 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-15 14:20:06,904 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-15 14:20:06,904 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-15 14:20:06,905 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-15 14:20:06,905 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-15 14:20:06,905 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-15 14:20:06,907 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-15 14:20:06,907 INFO L153 SettingsManager]: * Use SBE=true [2024-10-15 14:20:06,907 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-15 14:20:06,908 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-15 14:20:06,908 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-15 14:20:06,908 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-15 14:20:06,908 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-15 14:20:06,908 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-15 14:20:06,912 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-15 14:20:06,912 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-15 14:20:06,913 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-15 14:20:06,913 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-15 14:20:06,913 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-15 14:20:06,913 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-15 14:20:06,913 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-15 14:20:06,913 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-15 14:20:06,913 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-15 14:20:06,914 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-15 14:20:06,914 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-15 14:20:06,914 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-15 14:20:06,914 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-15 14:20:06,914 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-15 14:20:06,914 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-15 14:20:06,915 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-15 14:20:06,915 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-15 14:20:06,915 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-15 14:20:06,915 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-15 14:20:06,915 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-15 14:20:06,915 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-15 14:20:06,916 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/certificate-witnesses-artifact/automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f089d1b40a76f9af7e090d21489c70b68a6ceb7402496399cd1357670ffd9b51 Applying setting for plugin de.uni_freiburg.informatik.ultimate.boogie.procedureinliner: Inline calls to implemented procedures -> NEVER Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> All Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: YAML Format version -> 2.1 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Generate GraphML witnesses -> false [2024-10-15 14:20:07,108 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-15 14:20:07,127 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-15 14:20:07,130 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-15 14:20:07,131 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-15 14:20:07,131 INFO L274 PluginConnector]: CDTParser initialized [2024-10-15 14:20:07,132 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/automizer/../sv-benchmarks/c/loop-industry-pattern/aiob_1.c [2024-10-15 14:20:08,432 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-15 14:20:08,623 INFO L384 CDTParser]: Found 1 translation units. [2024-10-15 14:20:08,623 INFO L180 CDTParser]: Scanning /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/loop-industry-pattern/aiob_1.c [2024-10-15 14:20:08,630 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/certificate-witnesses-artifact/automizer/data/c1ab8dfe4/c415b8542f774d10bd44739c453094e4/FLAG30e11439f [2024-10-15 14:20:09,005 INFO L435 CDTParser]: Successfully deleted /storage/repos/certificate-witnesses-artifact/automizer/data/c1ab8dfe4/c415b8542f774d10bd44739c453094e4 [2024-10-15 14:20:09,007 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-15 14:20:09,010 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-15 14:20:09,012 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-15 14:20:09,012 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-15 14:20:09,018 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-15 14:20:09,019 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 02:20:09" (1/1) ... [2024-10-15 14:20:09,020 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@19682073 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:20:09, skipping insertion in model container [2024-10-15 14:20:09,020 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 02:20:09" (1/1) ... [2024-10-15 14:20:09,051 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-15 14:20:09,264 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/loop-industry-pattern/aiob_1.c[7657,7670] [2024-10-15 14:20:09,267 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-15 14:20:09,273 INFO L200 MainTranslator]: Completed pre-run [2024-10-15 14:20:09,330 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/loop-industry-pattern/aiob_1.c[7657,7670] [2024-10-15 14:20:09,331 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-15 14:20:09,349 INFO L204 MainTranslator]: Completed translation [2024-10-15 14:20:09,349 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:20:09 WrapperNode [2024-10-15 14:20:09,349 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-15 14:20:09,351 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-15 14:20:09,351 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-15 14:20:09,351 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-15 14:20:09,359 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:20:09" (1/1) ... [2024-10-15 14:20:09,369 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:20:09" (1/1) ... [2024-10-15 14:20:09,377 INFO L138 Inliner]: procedures = 20, calls = 242, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2024-10-15 14:20:09,377 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-15 14:20:09,378 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-15 14:20:09,378 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-15 14:20:09,378 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-15 14:20:09,388 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:20:09" (1/1) ... [2024-10-15 14:20:09,389 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:20:09" (1/1) ... [2024-10-15 14:20:09,395 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:20:09" (1/1) ... [2024-10-15 14:20:09,429 INFO L175 MemorySlicer]: Split 224 memory accesses to 6 slices as follows [2, 7, 2, 42, 130, 41]. 58 percent of accesses are in the largest equivalence class. The 178 initializations are split as follows [2, 7, 2, 41, 126, 0]. The 0 writes are split as follows [0, 0, 0, 0, 0, 0]. [2024-10-15 14:20:09,433 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:20:09" (1/1) ... [2024-10-15 14:20:09,433 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:20:09" (1/1) ... [2024-10-15 14:20:09,454 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:20:09" (1/1) ... [2024-10-15 14:20:09,457 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:20:09" (1/1) ... [2024-10-15 14:20:09,463 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:20:09" (1/1) ... [2024-10-15 14:20:09,464 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:20:09" (1/1) ... [2024-10-15 14:20:09,471 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-15 14:20:09,474 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-15 14:20:09,474 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-15 14:20:09,474 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-15 14:20:09,475 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:20:09" (1/1) ... [2024-10-15 14:20:09,480 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-15 14:20:09,491 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-10-15 14:20:09,516 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) [2024-10-15 14:20:09,522 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 [2024-10-15 14:20:09,592 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-10-15 14:20:09,593 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-10-15 14:20:09,594 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-10-15 14:20:09,594 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-10-15 14:20:09,594 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2024-10-15 14:20:09,594 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2024-10-15 14:20:09,594 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-10-15 14:20:09,595 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-10-15 14:20:09,595 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2024-10-15 14:20:09,596 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2024-10-15 14:20:09,596 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2024-10-15 14:20:09,596 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2024-10-15 14:20:09,596 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-15 14:20:09,596 INFO L130 BoogieDeclarations]: Found specification of procedure main [2024-10-15 14:20:09,596 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2024-10-15 14:20:09,596 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-15 14:20:09,596 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-10-15 14:20:09,597 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-10-15 14:20:09,597 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-10-15 14:20:09,597 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-10-15 14:20:09,597 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-10-15 14:20:09,597 INFO L130 BoogieDeclarations]: Found specification of procedure Id_MCDC_95 [2024-10-15 14:20:09,597 INFO L138 BoogieDeclarations]: Found implementation of procedure Id_MCDC_95 [2024-10-15 14:20:09,597 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-10-15 14:20:09,598 INFO L130 BoogieDeclarations]: Found specification of procedure Id_MCDC_92 [2024-10-15 14:20:09,598 INFO L138 BoogieDeclarations]: Found implementation of procedure Id_MCDC_92 [2024-10-15 14:20:09,598 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2024-10-15 14:20:09,598 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2024-10-15 14:20:09,598 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-15 14:20:09,599 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-15 14:20:09,618 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-10-15 14:20:09,618 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-10-15 14:20:09,618 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-10-15 14:20:09,618 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-10-15 14:20:09,618 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-10-15 14:20:09,618 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-10-15 14:20:09,619 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-10-15 14:20:09,619 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-10-15 14:20:09,619 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-10-15 14:20:09,751 INFO L238 CfgBuilder]: Building ICFG [2024-10-15 14:20:09,753 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-15 14:20:10,056 INFO L? ?]: Removed 19 outVars from TransFormulas that were not future-live. [2024-10-15 14:20:10,057 INFO L287 CfgBuilder]: Performing block encoding [2024-10-15 14:20:10,074 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-15 14:20:10,074 INFO L314 CfgBuilder]: Removed 1 assume(true) statements. [2024-10-15 14:20:10,074 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 02:20:10 BoogieIcfgContainer [2024-10-15 14:20:10,074 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-15 14:20:10,076 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-15 14:20:10,076 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-15 14:20:10,079 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-15 14:20:10,079 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 02:20:09" (1/3) ... [2024-10-15 14:20:10,080 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3548c382 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 02:20:10, skipping insertion in model container [2024-10-15 14:20:10,080 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:20:09" (2/3) ... [2024-10-15 14:20:10,082 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3548c382 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 02:20:10, skipping insertion in model container [2024-10-15 14:20:10,082 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 02:20:10" (3/3) ... [2024-10-15 14:20:10,083 INFO L112 eAbstractionObserver]: Analyzing ICFG aiob_1.c [2024-10-15 14:20:10,095 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:All NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-15 14:20:10,095 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-15 14:20:10,132 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-15 14:20:10,137 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, 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;@37e4f36a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-15 14:20:10,137 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-15 14:20:10,140 INFO L276 IsEmpty]: Start isEmpty. Operand has 29 states, 17 states have (on average 1.2941176470588236) internal successors, (22), 18 states have internal predecessors, (22), 5 states have call successors, (5), 5 states have call predecessors, (5), 5 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-10-15 14:20:10,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-10-15 14:20:10,148 INFO L207 NwaCegarLoop]: Found error trace [2024-10-15 14:20:10,149 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-15 14:20:10,149 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-15 14:20:10,156 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-15 14:20:10,157 INFO L85 PathProgramCache]: Analyzing trace with hash 1810614050, now seen corresponding path program 1 times [2024-10-15 14:20:10,163 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-15 14:20:10,163 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2029877328] [2024-10-15 14:20:10,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-15 14:20:10,163 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-15 14:20:10,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 14:20:10,616 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-10-15 14:20:10,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 14:20:10,622 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-15 14:20:10,623 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-15 14:20:10,623 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2029877328] [2024-10-15 14:20:10,623 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2029877328] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-15 14:20:10,624 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-15 14:20:10,624 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-15 14:20:10,625 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [897883441] [2024-10-15 14:20:10,626 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-15 14:20:10,629 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-15 14:20:10,629 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-15 14:20:10,647 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-15 14:20:10,647 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-15 14:20:10,649 INFO L87 Difference]: Start difference. First operand has 29 states, 17 states have (on average 1.2941176470588236) internal successors, (22), 18 states have internal predecessors, (22), 5 states have call successors, (5), 5 states have call predecessors, (5), 5 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Second operand has 7 states, 6 states have (on average 1.5) internal successors, (9), 5 states have internal predecessors, (9), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-10-15 14:20:10,834 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-15 14:20:10,834 INFO L93 Difference]: Finished difference Result 73 states and 84 transitions. [2024-10-15 14:20:10,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-15 14:20:10,837 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 1.5) internal successors, (9), 5 states have internal predecessors, (9), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 14 [2024-10-15 14:20:10,837 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-15 14:20:10,842 INFO L225 Difference]: With dead ends: 73 [2024-10-15 14:20:10,842 INFO L226 Difference]: Without dead ends: 36 [2024-10-15 14:20:10,845 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2024-10-15 14:20:10,848 INFO L432 NwaCegarLoop]: 14 mSDtfsCounter, 52 mSDsluCounter, 54 mSDsCounter, 0 mSdLazyCounter, 88 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 68 SdHoareTripleChecker+Invalid, 110 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 88 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-15 14:20:10,850 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [52 Valid, 68 Invalid, 110 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 88 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-15 14:20:10,887 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2024-10-15 14:20:10,906 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 29. [2024-10-15 14:20:10,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 18 states have (on average 1.0555555555555556) internal successors, (19), 19 states have internal predecessors, (19), 6 states have call successors, (6), 6 states have call predecessors, (6), 4 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) [2024-10-15 14:20:10,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 29 transitions. [2024-10-15 14:20:10,929 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 29 transitions. Word has length 14 [2024-10-15 14:20:10,929 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-15 14:20:10,929 INFO L471 AbstractCegarLoop]: Abstraction has 29 states and 29 transitions. [2024-10-15 14:20:10,929 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 1.5) internal successors, (9), 5 states have internal predecessors, (9), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-10-15 14:20:10,930 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-15 14:20:10,930 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 29 transitions. [2024-10-15 14:20:10,930 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2024-10-15 14:20:10,931 INFO L207 NwaCegarLoop]: Found error trace [2024-10-15 14:20:10,931 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-15 14:20:10,931 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-15 14:20:10,931 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-15 14:20:10,935 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-15 14:20:10,935 INFO L85 PathProgramCache]: Analyzing trace with hash -1460209492, now seen corresponding path program 1 times [2024-10-15 14:20:10,935 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-15 14:20:10,936 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [154814283] [2024-10-15 14:20:10,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-15 14:20:10,936 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-15 14:20:10,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 14:20:11,252 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-10-15 14:20:11,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 14:20:11,257 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-15 14:20:11,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 14:20:11,260 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-10-15 14:20:11,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 14:20:11,262 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-15 14:20:11,262 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-15 14:20:11,262 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [154814283] [2024-10-15 14:20:11,262 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [154814283] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-15 14:20:11,263 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2051382995] [2024-10-15 14:20:11,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-15 14:20:11,263 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-15 14:20:11,263 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-10-15 14:20:11,264 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) [2024-10-15 14:20:11,266 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-15 14:20:11,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 14:20:11,442 INFO L255 TraceCheckSpWp]: Trace formula consists of 603 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-10-15 14:20:11,448 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-15 14:20:11,526 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-15 14:20:11,526 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-15 14:20:11,620 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-15 14:20:11,620 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2051382995] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-15 14:20:11,621 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-15 14:20:11,621 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7, 7] total 14 [2024-10-15 14:20:11,621 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [879139533] [2024-10-15 14:20:11,621 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-15 14:20:11,622 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-10-15 14:20:11,622 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-15 14:20:11,623 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-10-15 14:20:11,623 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2024-10-15 14:20:11,623 INFO L87 Difference]: Start difference. First operand 29 states and 29 transitions. Second operand has 14 states, 11 states have (on average 2.5454545454545454) internal successors, (28), 11 states have internal predecessors, (28), 6 states have call successors, (11), 4 states have call predecessors, (11), 1 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2024-10-15 14:20:12,029 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-15 14:20:12,029 INFO L93 Difference]: Finished difference Result 68 states and 71 transitions. [2024-10-15 14:20:12,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-10-15 14:20:12,030 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 11 states have (on average 2.5454545454545454) internal successors, (28), 11 states have internal predecessors, (28), 6 states have call successors, (11), 4 states have call predecessors, (11), 1 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) Word has length 26 [2024-10-15 14:20:12,030 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-15 14:20:12,032 INFO L225 Difference]: With dead ends: 68 [2024-10-15 14:20:12,032 INFO L226 Difference]: Without dead ends: 66 [2024-10-15 14:20:12,032 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 52 SyntacticMatches, 2 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 168 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=186, Invalid=684, Unknown=0, NotChecked=0, Total=870 [2024-10-15 14:20:12,035 INFO L432 NwaCegarLoop]: 11 mSDtfsCounter, 68 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 216 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 63 SdHoareTripleChecker+Invalid, 256 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 216 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-15 14:20:12,036 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [68 Valid, 63 Invalid, 256 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 216 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-15 14:20:12,036 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2024-10-15 14:20:12,049 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 63. [2024-10-15 14:20:12,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63 states, 40 states have (on average 1.025) internal successors, (41), 41 states have internal predecessors, (41), 13 states have call successors, (13), 11 states have call predecessors, (13), 9 states have return successors, (11), 10 states have call predecessors, (11), 11 states have call successors, (11) [2024-10-15 14:20:12,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 65 transitions. [2024-10-15 14:20:12,051 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 65 transitions. Word has length 26 [2024-10-15 14:20:12,051 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-15 14:20:12,051 INFO L471 AbstractCegarLoop]: Abstraction has 63 states and 65 transitions. [2024-10-15 14:20:12,051 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 11 states have (on average 2.5454545454545454) internal successors, (28), 11 states have internal predecessors, (28), 6 states have call successors, (11), 4 states have call predecessors, (11), 1 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2024-10-15 14:20:12,051 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-15 14:20:12,051 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 65 transitions. [2024-10-15 14:20:12,053 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2024-10-15 14:20:12,053 INFO L207 NwaCegarLoop]: Found error trace [2024-10-15 14:20:12,053 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-15 14:20:12,066 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-10-15 14:20:12,253 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-15 14:20:12,254 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-15 14:20:12,255 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-15 14:20:12,256 INFO L85 PathProgramCache]: Analyzing trace with hash -323841206, now seen corresponding path program 2 times [2024-10-15 14:20:12,256 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-15 14:20:12,256 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [856423899] [2024-10-15 14:20:12,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-15 14:20:12,256 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-15 14:20:12,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 14:20:12,599 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-10-15 14:20:12,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 14:20:12,602 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-15 14:20:12,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 14:20:12,609 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-10-15 14:20:12,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 14:20:12,613 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-10-15 14:20:12,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 14:20:12,617 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-15 14:20:12,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 14:20:12,620 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-10-15 14:20:12,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 14:20:12,622 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-15 14:20:12,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 14:20:12,625 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-15 14:20:12,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 14:20:12,628 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-10-15 14:20:12,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 14:20:12,631 INFO L134 CoverageAnalysis]: Checked inductivity of 92 backedges. 8 proven. 48 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2024-10-15 14:20:12,631 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-15 14:20:12,631 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [856423899] [2024-10-15 14:20:12,631 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [856423899] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-15 14:20:12,631 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [193322012] [2024-10-15 14:20:12,631 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-15 14:20:12,631 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-15 14:20:12,631 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-10-15 14:20:12,637 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) [2024-10-15 14:20:12,638 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-10-15 14:20:12,800 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-10-15 14:20:12,801 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-15 14:20:12,808 INFO L255 TraceCheckSpWp]: Trace formula consists of 729 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-10-15 14:20:12,811 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-15 14:20:12,896 INFO L134 CoverageAnalysis]: Checked inductivity of 92 backedges. 16 proven. 49 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2024-10-15 14:20:12,896 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-15 14:20:13,077 INFO L134 CoverageAnalysis]: Checked inductivity of 92 backedges. 8 proven. 48 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2024-10-15 14:20:13,077 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [193322012] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-15 14:20:13,077 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-15 14:20:13,077 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 12, 10] total 21 [2024-10-15 14:20:13,077 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1799818352] [2024-10-15 14:20:13,077 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-15 14:20:13,078 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-10-15 14:20:13,078 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-15 14:20:13,079 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-10-15 14:20:13,079 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=351, Unknown=0, NotChecked=0, Total=420 [2024-10-15 14:20:13,079 INFO L87 Difference]: Start difference. First operand 63 states and 65 transitions. Second operand has 21 states, 18 states have (on average 3.0555555555555554) internal successors, (55), 19 states have internal predecessors, (55), 12 states have call successors, (23), 4 states have call predecessors, (23), 2 states have return successors, (18), 9 states have call predecessors, (18), 9 states have call successors, (18) [2024-10-15 14:20:13,883 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-15 14:20:13,883 INFO L93 Difference]: Finished difference Result 112 states and 124 transitions. [2024-10-15 14:20:13,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2024-10-15 14:20:13,884 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 18 states have (on average 3.0555555555555554) internal successors, (55), 19 states have internal predecessors, (55), 12 states have call successors, (23), 4 states have call predecessors, (23), 2 states have return successors, (18), 9 states have call predecessors, (18), 9 states have call successors, (18) Word has length 62 [2024-10-15 14:20:13,884 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-15 14:20:13,885 INFO L225 Difference]: With dead ends: 112 [2024-10-15 14:20:13,886 INFO L226 Difference]: Without dead ends: 110 [2024-10-15 14:20:13,886 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 177 GetRequests, 134 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 360 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=346, Invalid=1634, Unknown=0, NotChecked=0, Total=1980 [2024-10-15 14:20:13,888 INFO L432 NwaCegarLoop]: 17 mSDtfsCounter, 90 mSDsluCounter, 131 mSDsCounter, 0 mSdLazyCounter, 599 mSolverCounterSat, 95 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 91 SdHoareTripleChecker+Valid, 148 SdHoareTripleChecker+Invalid, 694 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 95 IncrementalHoareTripleChecker+Valid, 599 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-15 14:20:13,889 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [91 Valid, 148 Invalid, 694 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [95 Valid, 599 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-15 14:20:13,891 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states. [2024-10-15 14:20:13,921 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 107. [2024-10-15 14:20:13,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 107 states, 70 states have (on average 1.0142857142857142) internal successors, (71), 71 states have internal predecessors, (71), 24 states have call successors, (24), 14 states have call predecessors, (24), 12 states have return successors, (22), 21 states have call predecessors, (22), 22 states have call successors, (22) [2024-10-15 14:20:13,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 117 transitions. [2024-10-15 14:20:13,923 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 117 transitions. Word has length 62 [2024-10-15 14:20:13,924 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-15 14:20:13,924 INFO L471 AbstractCegarLoop]: Abstraction has 107 states and 117 transitions. [2024-10-15 14:20:13,924 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 18 states have (on average 3.0555555555555554) internal successors, (55), 19 states have internal predecessors, (55), 12 states have call successors, (23), 4 states have call predecessors, (23), 2 states have return successors, (18), 9 states have call predecessors, (18), 9 states have call successors, (18) [2024-10-15 14:20:13,924 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-15 14:20:13,924 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 117 transitions. [2024-10-15 14:20:13,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2024-10-15 14:20:13,927 INFO L207 NwaCegarLoop]: Found error trace [2024-10-15 14:20:13,928 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-15 14:20:13,942 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-10-15 14:20:14,128 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-15 14:20:14,128 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-15 14:20:14,129 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-15 14:20:14,129 INFO L85 PathProgramCache]: Analyzing trace with hash 1221059462, now seen corresponding path program 3 times [2024-10-15 14:20:14,129 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-15 14:20:14,129 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1977418084] [2024-10-15 14:20:14,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-15 14:20:14,130 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-15 14:20:14,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 14:20:14,680 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-10-15 14:20:14,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 14:20:14,683 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-15 14:20:14,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 14:20:14,685 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-10-15 14:20:14,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 14:20:14,687 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-10-15 14:20:14,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 14:20:14,689 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-15 14:20:14,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 14:20:14,690 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-10-15 14:20:14,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 14:20:14,692 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-15 14:20:14,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 14:20:14,694 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-15 14:20:14,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 14:20:14,695 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-10-15 14:20:14,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 14:20:14,697 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-10-15 14:20:14,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 14:20:14,699 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-10-15 14:20:14,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 14:20:14,700 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-10-15 14:20:14,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 14:20:14,702 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-10-15 14:20:14,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 14:20:14,704 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-10-15 14:20:14,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 14:20:14,706 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-10-15 14:20:14,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 14:20:14,707 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-10-15 14:20:14,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 14:20:14,710 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-10-15 14:20:14,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 14:20:14,711 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-10-15 14:20:14,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 14:20:14,713 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-10-15 14:20:14,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 14:20:14,726 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2024-10-15 14:20:14,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 14:20:14,728 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2024-10-15 14:20:14,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 14:20:14,734 INFO L134 CoverageAnalysis]: Checked inductivity of 590 backedges. 20 proven. 300 refuted. 0 times theorem prover too weak. 270 trivial. 0 not checked. [2024-10-15 14:20:14,735 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-15 14:20:14,735 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1977418084] [2024-10-15 14:20:14,735 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1977418084] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-15 14:20:14,735 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [832596810] [2024-10-15 14:20:14,735 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-10-15 14:20:14,735 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-15 14:20:14,735 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-10-15 14:20:14,740 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) [2024-10-15 14:20:14,741 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-10-15 14:20:14,925 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2024-10-15 14:20:14,926 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-15 14:20:14,928 INFO L255 TraceCheckSpWp]: Trace formula consists of 645 conjuncts, 37 conjuncts are in the unsatisfiable core [2024-10-15 14:20:14,934 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-15 14:20:16,002 INFO L349 Elim1Store]: treesize reduction 4, result has 60.0 percent of original size [2024-10-15 14:20:16,003 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 82 treesize of output 48 [2024-10-15 14:20:16,380 INFO L134 CoverageAnalysis]: Checked inductivity of 590 backedges. 33 proven. 140 refuted. 0 times theorem prover too weak. 417 trivial. 0 not checked. [2024-10-15 14:20:16,381 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-15 14:20:16,789 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [832596810] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-15 14:20:16,789 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-10-15 14:20:16,789 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17] total 32 [2024-10-15 14:20:16,789 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2069440954] [2024-10-15 14:20:16,790 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-10-15 14:20:16,791 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2024-10-15 14:20:16,791 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-15 14:20:16,793 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2024-10-15 14:20:16,794 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=191, Invalid=1369, Unknown=0, NotChecked=0, Total=1560 [2024-10-15 14:20:16,794 INFO L87 Difference]: Start difference. First operand 107 states and 117 transitions. Second operand has 32 states, 29 states have (on average 2.6551724137931036) internal successors, (77), 27 states have internal predecessors, (77), 16 states have call successors, (30), 6 states have call predecessors, (30), 4 states have return successors, (26), 14 states have call predecessors, (26), 14 states have call successors, (26) [2024-10-15 14:20:19,128 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-15 14:20:19,128 INFO L93 Difference]: Finished difference Result 124 states and 136 transitions. [2024-10-15 14:20:19,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2024-10-15 14:20:19,129 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 29 states have (on average 2.6551724137931036) internal successors, (77), 27 states have internal predecessors, (77), 16 states have call successors, (30), 6 states have call predecessors, (30), 4 states have return successors, (26), 14 states have call predecessors, (26), 14 states have call successors, (26) Word has length 134 [2024-10-15 14:20:19,131 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-15 14:20:19,131 INFO L225 Difference]: With dead ends: 124 [2024-10-15 14:20:19,131 INFO L226 Difference]: Without dead ends: 0 [2024-10-15 14:20:19,135 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 261 GetRequests, 140 SyntacticMatches, 35 SemanticMatches, 86 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1519 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=1161, Invalid=6495, Unknown=0, NotChecked=0, Total=7656 [2024-10-15 14:20:19,135 INFO L432 NwaCegarLoop]: 29 mSDtfsCounter, 129 mSDsluCounter, 225 mSDsCounter, 0 mSdLazyCounter, 1649 mSolverCounterSat, 208 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 129 SdHoareTripleChecker+Valid, 254 SdHoareTripleChecker+Invalid, 1857 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 208 IncrementalHoareTripleChecker+Valid, 1649 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-10-15 14:20:19,137 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [129 Valid, 254 Invalid, 1857 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [208 Valid, 1649 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-10-15 14:20:19,137 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-10-15 14:20:19,140 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-10-15 14:20:19,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-15 14:20:19,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-10-15 14:20:19,141 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 134 [2024-10-15 14:20:19,141 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-15 14:20:19,141 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-10-15 14:20:19,141 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 29 states have (on average 2.6551724137931036) internal successors, (77), 27 states have internal predecessors, (77), 16 states have call successors, (30), 6 states have call predecessors, (30), 4 states have return successors, (26), 14 states have call predecessors, (26), 14 states have call successors, (26) [2024-10-15 14:20:19,141 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-15 14:20:19,141 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-10-15 14:20:19,142 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-10-15 14:20:19,144 INFO L782 garLoopResultBuilder]: Registering result SAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-10-15 14:20:19,159 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-10-15 14:20:19,349 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-15 14:20:19,353 INFO L407 BasicCegarLoop]: Path program histogram: [3, 1] [2024-10-15 14:20:19,354 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-10-15 14:20:20,851 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-10-15 14:20:20,859 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #memory_int#4 [2024-10-15 14:20:20,860 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int#4,GLOBAL] [2024-10-15 14:20:20,860 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int#4,GLOBAL],[IdentifierExpression[~#Id_MCDC_101~0!base,]]] [2024-10-15 14:20:20,860 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~#Id_MCDC_101~0!offset [2024-10-15 14:20:20,860 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #memory_int#4 [2024-10-15 14:20:20,861 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int#4,GLOBAL] [2024-10-15 14:20:20,861 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int#4,GLOBAL],[IdentifierExpression[~#Id_MCDC_101~0!base,]]] [2024-10-15 14:20:20,861 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~#Id_MCDC_101~0!offset [2024-10-15 14:20:20,862 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #memory_int#4 [2024-10-15 14:20:20,862 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int#4,GLOBAL] [2024-10-15 14:20:20,862 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int#4,GLOBAL],[IdentifierExpression[~#Id_MCDC_101~0!base,]]] [2024-10-15 14:20:20,862 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~#Id_MCDC_101~0!offset [2024-10-15 14:20:20,868 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression [2024-10-15 14:20:20,868 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression [2024-10-15 14:20:20,868 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression [2024-10-15 14:20:20,869 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression [2024-10-15 14:20:20,873 WARN L156 FloydHoareUtils]: Requires clause for main contained old-variable. Original clause: (and (= ~Id_MCDC_99~0 0) (= |old(~Id_MCDC_99~0)| 0)) Eliminated clause: (= ~Id_MCDC_99~0 0) [2024-10-15 14:20:20,876 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression [2024-10-15 14:20:20,880 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression [2024-10-15 14:20:20,880 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression [2024-10-15 14:20:20,880 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression [2024-10-15 14:20:20,881 WARN L156 FloydHoareUtils]: Requires clause for Id_MCDC_95 contained old-variable. Original clause: (and (= ~Id_MCDC_99~0 0) (= |old(~Id_MCDC_99~0)| 0)) Eliminated clause: (= ~Id_MCDC_99~0 0) [2024-10-15 14:20:20,881 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.10 02:20:20 BoogieIcfgContainer [2024-10-15 14:20:20,881 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-10-15 14:20:20,882 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-15 14:20:20,882 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-15 14:20:20,882 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-15 14:20:20,883 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 02:20:10" (3/4) ... [2024-10-15 14:20:20,884 INFO L139 WitnessPrinter]: Generating witness for correct program [2024-10-15 14:20:20,944 INFO L149 WitnessManager]: Wrote witness to /storage/repos/certificate-witnesses-artifact/automizer/witness.yml [2024-10-15 14:20:20,944 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-15 14:20:20,945 INFO L158 Benchmark]: Toolchain (without parser) took 11936.50ms. Allocated memory was 159.4MB in the beginning and 337.6MB in the end (delta: 178.3MB). Free memory was 85.6MB in the beginning and 271.5MB in the end (delta: -185.9MB). There was no memory consumed. Max. memory is 16.1GB. [2024-10-15 14:20:20,945 INFO L158 Benchmark]: CDTParser took 0.37ms. Allocated memory is still 159.4MB. Free memory is still 110.6MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-15 14:20:20,945 INFO L158 Benchmark]: CACSL2BoogieTranslator took 337.59ms. Allocated memory is still 159.4MB. Free memory was 85.3MB in the beginning and 66.3MB in the end (delta: 19.0MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2024-10-15 14:20:20,946 INFO L158 Benchmark]: Boogie Procedure Inliner took 27.01ms. Allocated memory is still 159.4MB. Free memory was 66.3MB in the beginning and 65.2MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2024-10-15 14:20:20,946 INFO L158 Benchmark]: Boogie Preprocessor took 94.73ms. Allocated memory is still 159.4MB. Free memory was 64.9MB in the beginning and 59.9MB in the end (delta: 5.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-10-15 14:20:20,946 INFO L158 Benchmark]: RCFGBuilder took 600.93ms. Allocated memory was 159.4MB in the beginning and 232.8MB in the end (delta: 73.4MB). Free memory was 59.9MB in the beginning and 166.8MB in the end (delta: -106.9MB). Peak memory consumption was 17.9MB. Max. memory is 16.1GB. [2024-10-15 14:20:20,947 INFO L158 Benchmark]: TraceAbstraction took 10805.58ms. Allocated memory was 232.8MB in the beginning and 337.6MB in the end (delta: 104.9MB). Free memory was 165.8MB in the beginning and 273.6MB in the end (delta: -107.8MB). Peak memory consumption was 163.6MB. Max. memory is 16.1GB. [2024-10-15 14:20:20,947 INFO L158 Benchmark]: Witness Printer took 62.79ms. Allocated memory is still 337.6MB. Free memory was 273.6MB in the beginning and 271.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-15 14:20:20,948 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.37ms. Allocated memory is still 159.4MB. Free memory is still 110.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 337.59ms. Allocated memory is still 159.4MB. Free memory was 85.3MB in the beginning and 66.3MB in the end (delta: 19.0MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 27.01ms. Allocated memory is still 159.4MB. Free memory was 66.3MB in the beginning and 65.2MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 94.73ms. Allocated memory is still 159.4MB. Free memory was 64.9MB in the beginning and 59.9MB in the end (delta: 5.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 600.93ms. Allocated memory was 159.4MB in the beginning and 232.8MB in the end (delta: 73.4MB). Free memory was 59.9MB in the beginning and 166.8MB in the end (delta: -106.9MB). Peak memory consumption was 17.9MB. Max. memory is 16.1GB. * TraceAbstraction took 10805.58ms. Allocated memory was 232.8MB in the beginning and 337.6MB in the end (delta: 104.9MB). Free memory was 165.8MB in the beginning and 273.6MB in the end (delta: -107.8MB). Peak memory consumption was 163.6MB. Max. memory is 16.1GB. * Witness Printer took 62.79ms. Allocated memory is still 337.6MB. Free memory was 273.6MB in the beginning and 271.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #memory_int#4 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int#4,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int#4,GLOBAL],[IdentifierExpression[~#Id_MCDC_101~0!base,]]] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~#Id_MCDC_101~0!offset - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #memory_int#4 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int#4,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int#4,GLOBAL],[IdentifierExpression[~#Id_MCDC_101~0!base,]]] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~#Id_MCDC_101~0!offset - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #memory_int#4 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int#4,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int#4,GLOBAL],[IdentifierExpression[~#Id_MCDC_101~0!base,]]] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~#Id_MCDC_101~0!offset - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 189]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 29 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 9.2s, OverallIterations: 4, TraceHistogramMax: 11, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 3.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 340 SdHoareTripleChecker+Valid, 1.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 339 mSDsluCounter, 533 SdHoareTripleChecker+Invalid, 1.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 462 mSDsCounter, 365 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2552 IncrementalHoareTripleChecker+Invalid, 2917 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 365 mSolverCounterUnsat, 71 mSDtfsCounter, 2552 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 533 GetRequests, 330 SyntacticMatches, 37 SemanticMatches, 166 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2049 ImplicationChecksByTransitivity, 3.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=107occurred in iteration=3, InterpolantAutomatonStates: 110, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 4 MinimizatonAttempts, 13 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 3.8s InterpolantComputationTime, 458 NumberOfCodeBlocks, 362 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 537 ConstructedInterpolants, 54 QuantifiedInterpolants, 2222 SizeOfPredicates, 22 NumberOfNonLiveVariables, 1977 ConjunctsInSsa, 69 ConjunctsInUnsatCore, 9 InterpolantComputations, 1 PerfectInterpolantSequences, 877/1471 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 144]: Loop Invariant Derived loop invariant: ((((((Id_MCDC_99 <= 1) && (Id_MCDC_102 == 1)) && (0 <= 0)) || (((((Id_MCDC_99 != 41) && ((((long long) Id_MCDC_102 + 4294967295) % 4294967296) <= 41)) && (41 != (((long long) Id_MCDC_102 + 4294967295) % 4294967296))) && (Id_MCDC_99 <= 41)) && (((Id_MCDC_99 + 4294967295) % 4294967296) <= 41))) || ((Id_MCDC_99 == 0) && (Id_MCDC_102 == 0))) && (\old(Id_MCDC_99) == 0)) - ProcedureContractResult [Line: 128]: Procedure Contract for Id_MCDC_92 Derived contract for procedure Id_MCDC_92. Requires: (((Id_MCDC_99 <= 10) && (0 <= 0)) || (((Id_MCDC_99 != 41) && (Id_MCDC_99 <= 41)) && (((Id_MCDC_99 + 4294967295) % 4294967296) <= 41))) Ensures: ((((Id_MCDC_99 <= 10) && (0 <= 0)) || (((Id_MCDC_99 != 41) && (Id_MCDC_99 <= 41)) && (((Id_MCDC_99 + 4294967295) % 4294967296) <= 41))) && (Id_MCDC_99 == \old(Id_MCDC_99))) - ProcedureContractResult [Line: 150]: Procedure Contract for main Derived contract for procedure main. Requires: (Id_MCDC_99 == 0) Ensures: (\old(Id_MCDC_99) == 0) - ProcedureContractResult [Line: 185]: Procedure Contract for __VERIFIER_assert Derived contract for procedure __VERIFIER_assert. Requires: ((((Id_MCDC_99 <= 10) && (0 <= 0)) && (Id_MCDC_98 == 1)) || ((((Id_MCDC_99 != 41) && (41 != ((Id_MCDC_99 + 4294967295) % 4294967296))) && (Id_MCDC_98 == 1)) && (((Id_MCDC_99 + 4294967295) % 4294967296) <= 41))) Ensures: (((((Id_MCDC_99 <= 10) && (0 <= 0)) && (Id_MCDC_98 == 1)) || ((((Id_MCDC_99 != 41) && (41 != ((Id_MCDC_99 + 4294967295) % 4294967296))) && (Id_MCDC_98 == 1)) && (((Id_MCDC_99 + 4294967295) % 4294967296) <= 41))) && (Id_MCDC_99 == \old(Id_MCDC_99))) - ProcedureContractResult [Line: 139]: Procedure Contract for Id_MCDC_95 Derived contract for procedure Id_MCDC_95. Requires: (Id_MCDC_99 == 0) Ensures: (\old(Id_MCDC_99) == 0) RESULT: Ultimate proved your program to be correct! [2024-10-15 14:20:20,977 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE