./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/loop-industry-pattern/aiob_2.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_2.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 026c555e7fee0226e2a759c30119467d21d68b18e5fa50b91855a2cfe8505a9d --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 14:20:24,001 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-15 14:20:24,089 INFO L114 SettingsManager]: Loading settings from /storage/repos/certificate-witnesses-artifact/automizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-15 14:20:24,094 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-15 14:20:24,094 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-15 14:20:24,115 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-15 14:20:24,115 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-15 14:20:24,116 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-15 14:20:24,116 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-15 14:20:24,116 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-15 14:20:24,116 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-15 14:20:24,117 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-15 14:20:24,117 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-15 14:20:24,117 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-15 14:20:24,117 INFO L153 SettingsManager]: * Use SBE=true [2024-10-15 14:20:24,118 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-15 14:20:24,118 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-15 14:20:24,121 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-15 14:20:24,121 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-15 14:20:24,121 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-15 14:20:24,122 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-15 14:20:24,122 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-15 14:20:24,122 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-15 14:20:24,122 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-15 14:20:24,122 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-15 14:20:24,123 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-15 14:20:24,123 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-15 14:20:24,123 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-15 14:20:24,123 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-15 14:20:24,123 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-15 14:20:24,123 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-15 14:20:24,124 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-15 14:20:24,124 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-15 14:20:24,124 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-15 14:20:24,124 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-15 14:20:24,124 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-15 14:20:24,124 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-15 14:20:24,124 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-15 14:20:24,125 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-15 14:20:24,125 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-15 14:20:24,125 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-15 14:20:24,127 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-15 14:20:24,127 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/certificate-witnesses-artifact/automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 026c555e7fee0226e2a759c30119467d21d68b18e5fa50b91855a2cfe8505a9d Applying setting for plugin de.uni_freiburg.informatik.ultimate.boogie.procedureinliner: Inline calls to implemented procedures -> NEVER Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> All Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: YAML Format version -> 2.1 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Generate GraphML witnesses -> false [2024-10-15 14:20:24,313 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-15 14:20:24,333 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-15 14:20:24,335 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-15 14:20:24,336 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-15 14:20:24,336 INFO L274 PluginConnector]: CDTParser initialized [2024-10-15 14:20:24,337 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/automizer/../sv-benchmarks/c/loop-industry-pattern/aiob_2.c [2024-10-15 14:20:25,567 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-15 14:20:25,752 INFO L384 CDTParser]: Found 1 translation units. [2024-10-15 14:20:25,752 INFO L180 CDTParser]: Scanning /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/loop-industry-pattern/aiob_2.c [2024-10-15 14:20:25,758 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/certificate-witnesses-artifact/automizer/data/b05346e6d/b7c98dbbb21a4bdfb7cf6f74f9fd242b/FLAG3325323b1 [2024-10-15 14:20:25,770 INFO L435 CDTParser]: Successfully deleted /storage/repos/certificate-witnesses-artifact/automizer/data/b05346e6d/b7c98dbbb21a4bdfb7cf6f74f9fd242b [2024-10-15 14:20:25,773 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-15 14:20:25,774 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-15 14:20:25,775 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-15 14:20:25,775 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-15 14:20:25,781 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-15 14:20:25,782 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 02:20:25" (1/1) ... [2024-10-15 14:20:25,782 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@19d0c00 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:20:25, skipping insertion in model container [2024-10-15 14:20:25,783 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 02:20:25" (1/1) ... [2024-10-15 14:20:25,806 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-15 14:20:26,040 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_2.c[7657,7670] [2024-10-15 14:20:26,047 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-15 14:20:26,054 INFO L200 MainTranslator]: Completed pre-run [2024-10-15 14:20:26,113 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_2.c[7657,7670] [2024-10-15 14:20:26,113 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-15 14:20:26,129 INFO L204 MainTranslator]: Completed translation [2024-10-15 14:20:26,130 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:20:26 WrapperNode [2024-10-15 14:20:26,130 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-15 14:20:26,131 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-15 14:20:26,131 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-15 14:20:26,131 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-15 14:20:26,136 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:20:26" (1/1) ... [2024-10-15 14:20:26,147 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:20:26" (1/1) ... [2024-10-15 14:20:26,153 INFO L138 Inliner]: procedures = 20, calls = 242, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2024-10-15 14:20:26,153 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-15 14:20:26,153 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-15 14:20:26,153 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-15 14:20:26,153 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-15 14:20:26,161 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:20:26" (1/1) ... [2024-10-15 14:20:26,161 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:20:26" (1/1) ... [2024-10-15 14:20:26,165 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:20:26" (1/1) ... [2024-10-15 14:20:26,199 INFO L175 MemorySlicer]: Split 224 memory accesses to 6 slices as follows [2, 7, 2, 42, 41, 130]. 58 percent of accesses are in the largest equivalence class. The 178 initializations are split as follows [2, 7, 2, 41, 0, 126]. The 0 writes are split as follows [0, 0, 0, 0, 0, 0]. [2024-10-15 14:20:26,200 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:20:26" (1/1) ... [2024-10-15 14:20:26,200 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:20:26" (1/1) ... [2024-10-15 14:20:26,218 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:20:26" (1/1) ... [2024-10-15 14:20:26,225 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:20:26" (1/1) ... [2024-10-15 14:20:26,227 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:20:26" (1/1) ... [2024-10-15 14:20:26,229 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:20:26" (1/1) ... [2024-10-15 14:20:26,232 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-15 14:20:26,233 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-15 14:20:26,233 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-15 14:20:26,233 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-15 14:20:26,234 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:20:26" (1/1) ... [2024-10-15 14:20:26,243 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-15 14:20:26,252 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-10-15 14:20:26,267 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 14:20:26,272 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 14:20:26,308 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-10-15 14:20:26,308 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-10-15 14:20:26,308 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-10-15 14:20:26,308 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-10-15 14:20:26,309 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2024-10-15 14:20:26,309 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2024-10-15 14:20:26,309 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-10-15 14:20:26,310 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-10-15 14:20:26,310 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2024-10-15 14:20:26,311 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2024-10-15 14:20:26,311 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2024-10-15 14:20:26,311 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2024-10-15 14:20:26,311 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-15 14:20:26,311 INFO L130 BoogieDeclarations]: Found specification of procedure main [2024-10-15 14:20:26,311 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2024-10-15 14:20:26,312 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-15 14:20:26,312 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-10-15 14:20:26,312 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-10-15 14:20:26,312 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-10-15 14:20:26,313 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-10-15 14:20:26,313 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-10-15 14:20:26,313 INFO L130 BoogieDeclarations]: Found specification of procedure Id_MCDC_95 [2024-10-15 14:20:26,313 INFO L138 BoogieDeclarations]: Found implementation of procedure Id_MCDC_95 [2024-10-15 14:20:26,314 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-10-15 14:20:26,314 INFO L130 BoogieDeclarations]: Found specification of procedure Id_MCDC_92 [2024-10-15 14:20:26,314 INFO L138 BoogieDeclarations]: Found implementation of procedure Id_MCDC_92 [2024-10-15 14:20:26,314 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2024-10-15 14:20:26,314 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2024-10-15 14:20:26,314 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-15 14:20:26,315 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-15 14:20:26,315 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-10-15 14:20:26,315 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-10-15 14:20:26,315 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-10-15 14:20:26,316 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-10-15 14:20:26,316 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-10-15 14:20:26,316 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-10-15 14:20:26,316 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-10-15 14:20:26,316 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-10-15 14:20:26,316 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-10-15 14:20:26,438 INFO L238 CfgBuilder]: Building ICFG [2024-10-15 14:20:26,439 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-15 14:20:26,709 INFO L? ?]: Removed 19 outVars from TransFormulas that were not future-live. [2024-10-15 14:20:26,709 INFO L287 CfgBuilder]: Performing block encoding [2024-10-15 14:20:26,726 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-15 14:20:26,727 INFO L314 CfgBuilder]: Removed 1 assume(true) statements. [2024-10-15 14:20:26,727 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 02:20:26 BoogieIcfgContainer [2024-10-15 14:20:26,728 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-15 14:20:26,730 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-15 14:20:26,730 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-15 14:20:26,732 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-15 14:20:26,732 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 02:20:25" (1/3) ... [2024-10-15 14:20:26,733 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d9da225 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 02:20:26, skipping insertion in model container [2024-10-15 14:20:26,733 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:20:26" (2/3) ... [2024-10-15 14:20:26,734 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d9da225 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 02:20:26, skipping insertion in model container [2024-10-15 14:20:26,735 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 02:20:26" (3/3) ... [2024-10-15 14:20:26,736 INFO L112 eAbstractionObserver]: Analyzing ICFG aiob_2.c [2024-10-15 14:20:26,748 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:All NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-15 14:20:26,748 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-15 14:20:26,794 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-15 14:20:26,799 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;@2ed31c30, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-15 14:20:26,800 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-15 14:20:26,803 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 14:20:26,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-10-15 14:20:26,808 INFO L207 NwaCegarLoop]: Found error trace [2024-10-15 14:20:26,808 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-15 14:20:26,808 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-15 14:20:26,814 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-15 14:20:26,814 INFO L85 PathProgramCache]: Analyzing trace with hash 1810614050, now seen corresponding path program 1 times [2024-10-15 14:20:26,821 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-15 14:20:26,821 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1967301529] [2024-10-15 14:20:26,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-15 14:20:26,822 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-15 14:20:26,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 14:20:27,452 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-10-15 14:20:27,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 14:20:27,458 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 14:20:27,458 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-15 14:20:27,458 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1967301529] [2024-10-15 14:20:27,459 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1967301529] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-15 14:20:27,459 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-15 14:20:27,459 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-15 14:20:27,460 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1159292103] [2024-10-15 14:20:27,460 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-15 14:20:27,464 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-15 14:20:27,464 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-15 14:20:27,482 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-15 14:20:27,483 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-15 14:20:27,484 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 14:20:27,638 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-15 14:20:27,638 INFO L93 Difference]: Finished difference Result 73 states and 84 transitions. [2024-10-15 14:20:27,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-15 14:20:27,641 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 14:20:27,641 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-15 14:20:27,645 INFO L225 Difference]: With dead ends: 73 [2024-10-15 14:20:27,645 INFO L226 Difference]: Without dead ends: 36 [2024-10-15 14:20:27,648 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 14:20:27,651 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 14:20:27,652 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 14:20:27,663 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2024-10-15 14:20:27,675 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 29. [2024-10-15 14:20:27,676 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 14:20:27,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 29 transitions. [2024-10-15 14:20:27,678 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 29 transitions. Word has length 14 [2024-10-15 14:20:27,678 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-15 14:20:27,678 INFO L471 AbstractCegarLoop]: Abstraction has 29 states and 29 transitions. [2024-10-15 14:20:27,678 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 14:20:27,679 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-15 14:20:27,679 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 29 transitions. [2024-10-15 14:20:27,679 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2024-10-15 14:20:27,679 INFO L207 NwaCegarLoop]: Found error trace [2024-10-15 14:20:27,680 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 14:20:27,680 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-15 14:20:27,680 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-15 14:20:27,680 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-15 14:20:27,680 INFO L85 PathProgramCache]: Analyzing trace with hash -1460209492, now seen corresponding path program 1 times [2024-10-15 14:20:27,680 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-15 14:20:27,680 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1936266368] [2024-10-15 14:20:27,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-15 14:20:27,681 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-15 14:20:27,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 14:20:28,000 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-10-15 14:20:28,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 14:20:28,006 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-15 14:20:28,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 14:20:28,009 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-10-15 14:20:28,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 14:20:28,015 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 14:20:28,015 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-15 14:20:28,015 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1936266368] [2024-10-15 14:20:28,016 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1936266368] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-15 14:20:28,016 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [168762623] [2024-10-15 14:20:28,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-15 14:20:28,016 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-15 14:20:28,016 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-10-15 14:20:28,018 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 14:20:28,020 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 14:20:28,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 14:20:28,189 INFO L255 TraceCheckSpWp]: Trace formula consists of 601 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-10-15 14:20:28,195 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-15 14:20:28,276 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-15 14:20:28,276 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-15 14:20:28,377 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 14:20:28,377 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [168762623] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-15 14:20:28,377 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-15 14:20:28,377 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 9, 7] total 15 [2024-10-15 14:20:28,378 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [362504714] [2024-10-15 14:20:28,378 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-15 14:20:28,378 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-10-15 14:20:28,378 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-15 14:20:28,379 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-10-15 14:20:28,379 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=174, Unknown=0, NotChecked=0, Total=210 [2024-10-15 14:20:28,379 INFO L87 Difference]: Start difference. First operand 29 states and 29 transitions. Second operand has 15 states, 12 states have (on average 2.5833333333333335) internal successors, (31), 13 states have internal predecessors, (31), 6 states have call successors, (11), 4 states have call predecessors, (11), 2 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2024-10-15 14:20:28,771 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-15 14:20:28,771 INFO L93 Difference]: Finished difference Result 64 states and 68 transitions. [2024-10-15 14:20:28,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-10-15 14:20:28,772 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 12 states have (on average 2.5833333333333335) internal successors, (31), 13 states have internal predecessors, (31), 6 states have call successors, (11), 4 states have call predecessors, (11), 2 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) Word has length 26 [2024-10-15 14:20:28,772 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-15 14:20:28,773 INFO L225 Difference]: With dead ends: 64 [2024-10-15 14:20:28,773 INFO L226 Difference]: Without dead ends: 62 [2024-10-15 14:20:28,774 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 207 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=208, Invalid=848, Unknown=0, NotChecked=0, Total=1056 [2024-10-15 14:20:28,775 INFO L432 NwaCegarLoop]: 11 mSDtfsCounter, 75 mSDsluCounter, 66 mSDsCounter, 0 mSdLazyCounter, 256 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 76 SdHoareTripleChecker+Valid, 77 SdHoareTripleChecker+Invalid, 308 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 256 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-15 14:20:28,775 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [76 Valid, 77 Invalid, 308 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 256 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-15 14:20:28,776 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2024-10-15 14:20:28,787 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 59. [2024-10-15 14:20:28,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59 states, 38 states have (on average 1.0263157894736843) internal successors, (39), 39 states have internal predecessors, (39), 12 states have call successors, (12), 10 states have call predecessors, (12), 8 states have return successors, (10), 9 states have call predecessors, (10), 10 states have call successors, (10) [2024-10-15 14:20:28,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 61 transitions. [2024-10-15 14:20:28,788 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 61 transitions. Word has length 26 [2024-10-15 14:20:28,789 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-15 14:20:28,789 INFO L471 AbstractCegarLoop]: Abstraction has 59 states and 61 transitions. [2024-10-15 14:20:28,789 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 12 states have (on average 2.5833333333333335) internal successors, (31), 13 states have internal predecessors, (31), 6 states have call successors, (11), 4 states have call predecessors, (11), 2 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2024-10-15 14:20:28,789 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-15 14:20:28,789 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 61 transitions. [2024-10-15 14:20:28,791 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2024-10-15 14:20:28,791 INFO L207 NwaCegarLoop]: Found error trace [2024-10-15 14:20:28,791 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 14:20:28,806 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 14:20:28,995 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 14:20:28,996 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-15 14:20:28,996 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-15 14:20:28,996 INFO L85 PathProgramCache]: Analyzing trace with hash -323841206, now seen corresponding path program 2 times [2024-10-15 14:20:28,996 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-15 14:20:28,996 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [489648480] [2024-10-15 14:20:28,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-15 14:20:28,997 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-15 14:20:29,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 14:20:29,281 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-10-15 14:20:29,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 14:20:29,284 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-15 14:20:29,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 14:20:29,287 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-10-15 14:20:29,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 14:20:29,289 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-10-15 14:20:29,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 14:20:29,291 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-15 14:20:29,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 14:20:29,293 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-10-15 14:20:29,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 14:20:29,295 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-15 14:20:29,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 14:20:29,297 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-15 14:20:29,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 14:20:29,299 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-10-15 14:20:29,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 14:20:29,301 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 14:20:29,301 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-15 14:20:29,301 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [489648480] [2024-10-15 14:20:29,301 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [489648480] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-15 14:20:29,302 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1770531843] [2024-10-15 14:20:29,302 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-15 14:20:29,302 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-15 14:20:29,302 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-10-15 14:20:29,303 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 14:20:29,306 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 14:20:29,462 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-10-15 14:20:29,463 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-15 14:20:29,466 INFO L255 TraceCheckSpWp]: Trace formula consists of 727 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-10-15 14:20:29,468 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-15 14:20:29,542 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 14:20:29,543 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-15 14:20:29,744 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 14:20:29,745 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1770531843] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-15 14:20:29,745 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-15 14:20:29,745 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 12, 10] total 21 [2024-10-15 14:20:29,745 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [639437304] [2024-10-15 14:20:29,745 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-15 14:20:29,746 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-10-15 14:20:29,747 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-15 14:20:29,748 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-10-15 14:20:29,748 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=351, Unknown=0, NotChecked=0, Total=420 [2024-10-15 14:20:29,749 INFO L87 Difference]: Start difference. First operand 59 states and 61 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 14:20:30,522 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-15 14:20:30,523 INFO L93 Difference]: Finished difference Result 112 states and 124 transitions. [2024-10-15 14:20:30,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2024-10-15 14:20:30,523 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 14:20:30,524 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-15 14:20:30,525 INFO L225 Difference]: With dead ends: 112 [2024-10-15 14:20:30,525 INFO L226 Difference]: Without dead ends: 110 [2024-10-15 14:20:30,526 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 177 GetRequests, 134 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 360 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=346, Invalid=1634, Unknown=0, NotChecked=0, Total=1980 [2024-10-15 14:20:30,527 INFO L432 NwaCegarLoop]: 17 mSDtfsCounter, 110 mSDsluCounter, 107 mSDsCounter, 0 mSdLazyCounter, 534 mSolverCounterSat, 115 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 111 SdHoareTripleChecker+Valid, 124 SdHoareTripleChecker+Invalid, 649 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 115 IncrementalHoareTripleChecker+Valid, 534 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-15 14:20:30,527 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [111 Valid, 124 Invalid, 649 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [115 Valid, 534 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-15 14:20:30,528 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states. [2024-10-15 14:20:30,550 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 107. [2024-10-15 14:20:30,550 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 14:20:30,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 117 transitions. [2024-10-15 14:20:30,552 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 117 transitions. Word has length 62 [2024-10-15 14:20:30,552 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-15 14:20:30,553 INFO L471 AbstractCegarLoop]: Abstraction has 107 states and 117 transitions. [2024-10-15 14:20:30,553 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 14:20:30,553 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-15 14:20:30,553 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 117 transitions. [2024-10-15 14:20:30,556 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2024-10-15 14:20:30,556 INFO L207 NwaCegarLoop]: Found error trace [2024-10-15 14:20:30,556 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 14:20:30,572 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-10-15 14:20:30,757 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 14:20:30,758 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-15 14:20:30,758 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-15 14:20:30,758 INFO L85 PathProgramCache]: Analyzing trace with hash 1221059462, now seen corresponding path program 3 times [2024-10-15 14:20:30,758 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-15 14:20:30,759 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [437196623] [2024-10-15 14:20:30,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-15 14:20:30,759 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-15 14:20:30,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 14:20:31,288 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-10-15 14:20:31,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 14:20:31,291 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-15 14:20:31,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 14:20:31,293 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-10-15 14:20:31,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 14:20:31,295 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-10-15 14:20:31,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 14:20:31,297 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-15 14:20:31,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 14:20:31,298 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-10-15 14:20:31,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 14:20:31,300 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-15 14:20:31,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 14:20:31,302 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-15 14:20:31,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 14:20:31,304 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-10-15 14:20:31,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 14:20:31,306 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-10-15 14:20:31,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 14:20:31,307 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-10-15 14:20:31,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 14:20:31,309 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-10-15 14:20:31,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 14:20:31,311 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-10-15 14:20:31,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 14:20:31,312 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-10-15 14:20:31,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 14:20:31,314 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-10-15 14:20:31,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 14:20:31,316 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-10-15 14:20:31,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 14:20:31,318 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-10-15 14:20:31,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 14:20:31,320 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-10-15 14:20:31,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 14:20:31,322 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-10-15 14:20:31,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 14:20:31,323 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2024-10-15 14:20:31,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 14:20:31,325 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2024-10-15 14:20:31,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 14:20:31,327 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 14:20:31,327 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-15 14:20:31,327 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [437196623] [2024-10-15 14:20:31,327 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [437196623] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-15 14:20:31,328 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1152758252] [2024-10-15 14:20:31,328 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-10-15 14:20:31,328 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-15 14:20:31,328 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-10-15 14:20:31,329 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 14:20:31,330 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 14:20:31,518 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2024-10-15 14:20:31,518 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-15 14:20:31,521 INFO L255 TraceCheckSpWp]: Trace formula consists of 643 conjuncts, 26 conjuncts are in the unsatisfiable core [2024-10-15 14:20:31,527 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-15 14:20:32,524 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-15 14:20:32,524 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 45 treesize of output 33 [2024-10-15 14:20:32,810 INFO L134 CoverageAnalysis]: Checked inductivity of 590 backedges. 0 proven. 149 refuted. 0 times theorem prover too weak. 441 trivial. 0 not checked. [2024-10-15 14:20:32,810 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-15 14:20:33,177 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1152758252] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-15 14:20:33,177 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-10-15 14:20:33,177 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 14] total 29 [2024-10-15 14:20:33,177 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [313408044] [2024-10-15 14:20:33,177 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-10-15 14:20:33,178 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2024-10-15 14:20:33,178 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-15 14:20:33,178 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2024-10-15 14:20:33,179 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=185, Invalid=1147, Unknown=0, NotChecked=0, Total=1332 [2024-10-15 14:20:33,179 INFO L87 Difference]: Start difference. First operand 107 states and 117 transitions. Second operand has 29 states, 26 states have (on average 2.8461538461538463) internal successors, (74), 25 states have internal predecessors, (74), 16 states have call successors, (30), 6 states have call predecessors, (30), 3 states have return successors, (25), 13 states have call predecessors, (25), 14 states have call successors, (25) [2024-10-15 14:20:34,746 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-15 14:20:34,747 INFO L93 Difference]: Finished difference Result 124 states and 136 transitions. [2024-10-15 14:20:34,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2024-10-15 14:20:34,747 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 26 states have (on average 2.8461538461538463) internal successors, (74), 25 states have internal predecessors, (74), 16 states have call successors, (30), 6 states have call predecessors, (30), 3 states have return successors, (25), 13 states have call predecessors, (25), 14 states have call successors, (25) Word has length 134 [2024-10-15 14:20:34,748 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-15 14:20:34,748 INFO L225 Difference]: With dead ends: 124 [2024-10-15 14:20:34,748 INFO L226 Difference]: Without dead ends: 0 [2024-10-15 14:20:34,750 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 249 GetRequests, 143 SyntacticMatches, 35 SemanticMatches, 71 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 942 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=902, Invalid=4354, Unknown=0, NotChecked=0, Total=5256 [2024-10-15 14:20:34,751 INFO L432 NwaCegarLoop]: 29 mSDtfsCounter, 128 mSDsluCounter, 120 mSDsCounter, 0 mSdLazyCounter, 1281 mSolverCounterSat, 171 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 128 SdHoareTripleChecker+Valid, 149 SdHoareTripleChecker+Invalid, 1452 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 171 IncrementalHoareTripleChecker+Valid, 1281 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-10-15 14:20:34,751 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [128 Valid, 149 Invalid, 1452 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [171 Valid, 1281 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-10-15 14:20:34,751 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-10-15 14:20:34,751 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-10-15 14:20:34,752 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 14:20:34,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-10-15 14:20:34,752 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 134 [2024-10-15 14:20:34,752 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-15 14:20:34,752 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-10-15 14:20:34,752 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 26 states have (on average 2.8461538461538463) internal successors, (74), 25 states have internal predecessors, (74), 16 states have call successors, (30), 6 states have call predecessors, (30), 3 states have return successors, (25), 13 states have call predecessors, (25), 14 states have call successors, (25) [2024-10-15 14:20:34,752 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-15 14:20:34,752 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-10-15 14:20:34,752 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-10-15 14:20:34,761 INFO L782 garLoopResultBuilder]: Registering result SAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-10-15 14:20:34,787 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-10-15 14:20:34,962 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 14:20:34,965 INFO L407 BasicCegarLoop]: Path program histogram: [3, 1] [2024-10-15 14:20:34,967 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-10-15 14:20:36,365 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-10-15 14:20:36,373 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #memory_int#5 [2024-10-15 14:20:36,374 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int#5,GLOBAL] [2024-10-15 14:20:36,374 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int#5,GLOBAL],[IdentifierExpression[~#Id_MCDC_101~0!base,]]] [2024-10-15 14:20:36,374 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~#Id_MCDC_101~0!offset [2024-10-15 14:20:36,374 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #memory_int#5 [2024-10-15 14:20:36,375 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int#5,GLOBAL] [2024-10-15 14:20:36,375 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int#5,GLOBAL],[IdentifierExpression[~#Id_MCDC_101~0!base,]]] [2024-10-15 14:20:36,375 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~#Id_MCDC_101~0!offset [2024-10-15 14:20:36,375 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #memory_int#5 [2024-10-15 14:20:36,375 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int#5,GLOBAL] [2024-10-15 14:20:36,375 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int#5,GLOBAL],[IdentifierExpression[~#Id_MCDC_101~0!base,]]] [2024-10-15 14:20:36,376 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~#Id_MCDC_101~0!offset [2024-10-15 14:20:36,383 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression [2024-10-15 14:20:36,383 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression [2024-10-15 14:20:36,383 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression [2024-10-15 14:20:36,383 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression [2024-10-15 14:20:36,387 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 14:20:36,390 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression [2024-10-15 14:20:36,392 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression [2024-10-15 14:20:36,392 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression [2024-10-15 14:20:36,392 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression [2024-10-15 14:20:36,393 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 14:20:36,395 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.10 02:20:36 BoogieIcfgContainer [2024-10-15 14:20:36,395 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-10-15 14:20:36,396 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-15 14:20:36,396 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-15 14:20:36,396 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-15 14:20:36,398 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 02:20:26" (3/4) ... [2024-10-15 14:20:36,400 INFO L139 WitnessPrinter]: Generating witness for correct program [2024-10-15 14:20:36,454 INFO L149 WitnessManager]: Wrote witness to /storage/repos/certificate-witnesses-artifact/automizer/witness.yml [2024-10-15 14:20:36,454 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-15 14:20:36,455 INFO L158 Benchmark]: Toolchain (without parser) took 10680.84ms. Allocated memory was 237.0MB in the beginning and 343.9MB in the end (delta: 107.0MB). Free memory was 164.5MB in the beginning and 152.3MB in the end (delta: 12.2MB). Peak memory consumption was 121.9MB. Max. memory is 16.1GB. [2024-10-15 14:20:36,455 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 123.7MB. Free memory is still 86.0MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-15 14:20:36,455 INFO L158 Benchmark]: CACSL2BoogieTranslator took 355.46ms. Allocated memory is still 237.0MB. Free memory was 164.1MB in the beginning and 145.3MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2024-10-15 14:20:36,455 INFO L158 Benchmark]: Boogie Procedure Inliner took 22.21ms. Allocated memory is still 237.0MB. Free memory was 145.3MB in the beginning and 144.1MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-15 14:20:36,455 INFO L158 Benchmark]: Boogie Preprocessor took 79.12ms. Allocated memory is still 237.0MB. Free memory was 143.6MB in the beginning and 139.0MB in the end (delta: 4.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-10-15 14:20:36,455 INFO L158 Benchmark]: RCFGBuilder took 494.65ms. Allocated memory is still 237.0MB. Free memory was 139.0MB in the beginning and 99.5MB in the end (delta: 39.4MB). Peak memory consumption was 39.8MB. Max. memory is 16.1GB. [2024-10-15 14:20:36,456 INFO L158 Benchmark]: TraceAbstraction took 9665.56ms. Allocated memory was 237.0MB in the beginning and 343.9MB in the end (delta: 107.0MB). Free memory was 99.1MB in the beginning and 155.5MB in the end (delta: -56.4MB). Peak memory consumption was 101.5MB. Max. memory is 16.1GB. [2024-10-15 14:20:36,456 INFO L158 Benchmark]: Witness Printer took 58.31ms. Allocated memory is still 343.9MB. Free memory was 155.5MB in the beginning and 152.3MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-10-15 14:20:36,457 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 123.7MB. Free memory is still 86.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 355.46ms. Allocated memory is still 237.0MB. Free memory was 164.1MB in the beginning and 145.3MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 22.21ms. Allocated memory is still 237.0MB. Free memory was 145.3MB in the beginning and 144.1MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 79.12ms. Allocated memory is still 237.0MB. Free memory was 143.6MB in the beginning and 139.0MB in the end (delta: 4.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 494.65ms. Allocated memory is still 237.0MB. Free memory was 139.0MB in the beginning and 99.5MB in the end (delta: 39.4MB). Peak memory consumption was 39.8MB. Max. memory is 16.1GB. * TraceAbstraction took 9665.56ms. Allocated memory was 237.0MB in the beginning and 343.9MB in the end (delta: 107.0MB). Free memory was 99.1MB in the beginning and 155.5MB in the end (delta: -56.4MB). Peak memory consumption was 101.5MB. Max. memory is 16.1GB. * Witness Printer took 58.31ms. Allocated memory is still 343.9MB. Free memory was 155.5MB in the beginning and 152.3MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #memory_int#5 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int#5,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int#5,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#5 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int#5,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int#5,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#5 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int#5,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int#5,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: 8.2s, OverallIterations: 4, TraceHistogramMax: 11, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 2.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 367 SdHoareTripleChecker+Valid, 1.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 365 mSDsluCounter, 418 SdHoareTripleChecker+Invalid, 1.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 347 mSDsCounter, 360 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2159 IncrementalHoareTripleChecker+Invalid, 2519 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 360 mSolverCounterUnsat, 71 mSDtfsCounter, 2159 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 523 GetRequests, 334 SyntacticMatches, 35 SemanticMatches, 154 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1511 ImplicationChecksByTransitivity, 2.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=107occurred in iteration=3, InterpolantAutomatonStates: 100, 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, 3.7s InterpolantComputationTime, 458 NumberOfCodeBlocks, 362 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 537 ConstructedInterpolants, 54 QuantifiedInterpolants, 2165 SizeOfPredicates, 18 NumberOfNonLiveVariables, 1971 ConjunctsInSsa, 66 ConjunctsInUnsatCore, 9 InterpolantComputations, 1 PerfectInterpolantSequences, 867/1471 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 == 0) && (Id_MCDC_102 == 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))) && (\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 14:20:36,486 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