./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/loop-industry-pattern/aiob_3.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_3.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 a580f4004513699e7113a3144aa7d61cbca2d2a42465d87f17daced269fc5719 --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 14:20:39,565 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-15 14:20:39,627 INFO L114 SettingsManager]: Loading settings from /storage/repos/certificate-witnesses-artifact/automizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-15 14:20:39,632 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-15 14:20:39,632 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-15 14:20:39,666 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-15 14:20:39,666 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-15 14:20:39,667 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-15 14:20:39,667 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-15 14:20:39,668 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-15 14:20:39,669 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-15 14:20:39,669 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-15 14:20:39,670 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-15 14:20:39,672 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-15 14:20:39,672 INFO L153 SettingsManager]: * Use SBE=true [2024-10-15 14:20:39,672 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-15 14:20:39,673 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-15 14:20:39,673 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-15 14:20:39,673 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-15 14:20:39,673 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-15 14:20:39,673 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-15 14:20:39,674 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-15 14:20:39,674 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-15 14:20:39,674 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-15 14:20:39,674 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-15 14:20:39,675 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-15 14:20:39,675 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-15 14:20:39,675 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-15 14:20:39,675 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-15 14:20:39,675 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-15 14:20:39,676 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-15 14:20:39,676 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-15 14:20:39,676 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-15 14:20:39,676 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-15 14:20:39,676 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-15 14:20:39,676 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-15 14:20:39,677 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-15 14:20:39,677 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-15 14:20:39,677 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-15 14:20:39,677 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-15 14:20:39,677 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-15 14:20:39,678 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-15 14:20:39,679 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/certificate-witnesses-artifact/automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a580f4004513699e7113a3144aa7d61cbca2d2a42465d87f17daced269fc5719 Applying setting for plugin de.uni_freiburg.informatik.ultimate.boogie.procedureinliner: Inline calls to implemented procedures -> NEVER Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> All Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: YAML Format version -> 2.1 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Generate GraphML witnesses -> false [2024-10-15 14:20:39,893 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-15 14:20:39,909 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-15 14:20:39,915 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-15 14:20:39,915 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-15 14:20:39,916 INFO L274 PluginConnector]: CDTParser initialized [2024-10-15 14:20:39,917 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/automizer/../sv-benchmarks/c/loop-industry-pattern/aiob_3.c [2024-10-15 14:20:41,193 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-15 14:20:41,380 INFO L384 CDTParser]: Found 1 translation units. [2024-10-15 14:20:41,383 INFO L180 CDTParser]: Scanning /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/loop-industry-pattern/aiob_3.c [2024-10-15 14:20:41,392 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/certificate-witnesses-artifact/automizer/data/ccc74ad48/2e5cffba130c4e40941ee0d1776dc9a4/FLAG25a44565b [2024-10-15 14:20:41,756 INFO L435 CDTParser]: Successfully deleted /storage/repos/certificate-witnesses-artifact/automizer/data/ccc74ad48/2e5cffba130c4e40941ee0d1776dc9a4 [2024-10-15 14:20:41,758 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-15 14:20:41,759 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-15 14:20:41,759 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-15 14:20:41,760 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-15 14:20:41,765 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-15 14:20:41,765 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 02:20:41" (1/1) ... [2024-10-15 14:20:41,766 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@41175e38 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:20:41, skipping insertion in model container [2024-10-15 14:20:41,766 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 02:20:41" (1/1) ... [2024-10-15 14:20:41,787 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-15 14:20:42,005 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_3.c[7657,7670] [2024-10-15 14:20:42,029 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-15 14:20:42,039 INFO L200 MainTranslator]: Completed pre-run [2024-10-15 14:20:42,101 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_3.c[7657,7670] [2024-10-15 14:20:42,101 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-15 14:20:42,114 INFO L204 MainTranslator]: Completed translation [2024-10-15 14:20:42,115 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:20:42 WrapperNode [2024-10-15 14:20:42,115 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-15 14:20:42,116 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-15 14:20:42,116 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-15 14:20:42,116 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-15 14:20:42,121 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:20:42" (1/1) ... [2024-10-15 14:20:42,131 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:20:42" (1/1) ... [2024-10-15 14:20:42,139 INFO L138 Inliner]: procedures = 20, calls = 242, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2024-10-15 14:20:42,140 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-15 14:20:42,140 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-15 14:20:42,140 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-15 14:20:42,140 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-15 14:20:42,148 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:20:42" (1/1) ... [2024-10-15 14:20:42,149 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:20:42" (1/1) ... [2024-10-15 14:20:42,153 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:20:42" (1/1) ... [2024-10-15 14:20:42,172 INFO L175 MemorySlicer]: Split 224 memory accesses to 6 slices as follows [2, 42, 130, 7, 2, 41]. 58 percent of accesses are in the largest equivalence class. The 178 initializations are split as follows [2, 41, 126, 7, 2, 0]. The 0 writes are split as follows [0, 0, 0, 0, 0, 0]. [2024-10-15 14:20:42,172 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:20:42" (1/1) ... [2024-10-15 14:20:42,172 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:20:42" (1/1) ... [2024-10-15 14:20:42,189 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:20:42" (1/1) ... [2024-10-15 14:20:42,192 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:20:42" (1/1) ... [2024-10-15 14:20:42,194 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:20:42" (1/1) ... [2024-10-15 14:20:42,196 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:20:42" (1/1) ... [2024-10-15 14:20:42,199 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-15 14:20:42,200 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-15 14:20:42,200 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-15 14:20:42,200 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-15 14:20:42,201 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:20:42" (1/1) ... [2024-10-15 14:20:42,205 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-15 14:20:42,221 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-10-15 14:20:42,244 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 14:20:42,252 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 14:20:42,291 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-10-15 14:20:42,292 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-10-15 14:20:42,292 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-10-15 14:20:42,292 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-10-15 14:20:42,293 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2024-10-15 14:20:42,293 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2024-10-15 14:20:42,293 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-10-15 14:20:42,294 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-10-15 14:20:42,294 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2024-10-15 14:20:42,294 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2024-10-15 14:20:42,294 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2024-10-15 14:20:42,294 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2024-10-15 14:20:42,294 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-15 14:20:42,294 INFO L130 BoogieDeclarations]: Found specification of procedure main [2024-10-15 14:20:42,295 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2024-10-15 14:20:42,295 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-15 14:20:42,295 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-10-15 14:20:42,295 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-10-15 14:20:42,295 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-10-15 14:20:42,295 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-10-15 14:20:42,295 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-10-15 14:20:42,295 INFO L130 BoogieDeclarations]: Found specification of procedure Id_MCDC_95 [2024-10-15 14:20:42,295 INFO L138 BoogieDeclarations]: Found implementation of procedure Id_MCDC_95 [2024-10-15 14:20:42,295 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-10-15 14:20:42,295 INFO L130 BoogieDeclarations]: Found specification of procedure Id_MCDC_92 [2024-10-15 14:20:42,295 INFO L138 BoogieDeclarations]: Found implementation of procedure Id_MCDC_92 [2024-10-15 14:20:42,295 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2024-10-15 14:20:42,296 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2024-10-15 14:20:42,296 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-15 14:20:42,296 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-15 14:20:42,296 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-10-15 14:20:42,296 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-10-15 14:20:42,296 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-10-15 14:20:42,296 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-10-15 14:20:42,296 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-10-15 14:20:42,298 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-10-15 14:20:42,298 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-10-15 14:20:42,298 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-10-15 14:20:42,298 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-10-15 14:20:42,414 INFO L238 CfgBuilder]: Building ICFG [2024-10-15 14:20:42,416 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-15 14:20:42,725 INFO L? ?]: Removed 19 outVars from TransFormulas that were not future-live. [2024-10-15 14:20:42,725 INFO L287 CfgBuilder]: Performing block encoding [2024-10-15 14:20:42,740 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-15 14:20:42,740 INFO L314 CfgBuilder]: Removed 1 assume(true) statements. [2024-10-15 14:20:42,740 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 02:20:42 BoogieIcfgContainer [2024-10-15 14:20:42,740 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-15 14:20:42,742 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-15 14:20:42,743 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-15 14:20:42,745 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-15 14:20:42,745 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 02:20:41" (1/3) ... [2024-10-15 14:20:42,746 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4de92e3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 02:20:42, skipping insertion in model container [2024-10-15 14:20:42,746 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:20:42" (2/3) ... [2024-10-15 14:20:42,748 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4de92e3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 02:20:42, skipping insertion in model container [2024-10-15 14:20:42,748 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 02:20:42" (3/3) ... [2024-10-15 14:20:42,749 INFO L112 eAbstractionObserver]: Analyzing ICFG aiob_3.c [2024-10-15 14:20:42,760 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:All NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-15 14:20:42,760 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-15 14:20:42,798 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-15 14:20:42,802 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;@628e5775, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-15 14:20:42,802 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-15 14:20:42,805 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 14:20:42,810 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-10-15 14:20:42,810 INFO L207 NwaCegarLoop]: Found error trace [2024-10-15 14:20:42,811 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-15 14:20:42,811 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-15 14:20:42,814 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-15 14:20:42,814 INFO L85 PathProgramCache]: Analyzing trace with hash 1810614050, now seen corresponding path program 1 times [2024-10-15 14:20:42,820 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-15 14:20:42,821 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1797512186] [2024-10-15 14:20:42,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-15 14:20:42,821 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-15 14:20:43,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 14:20:43,362 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-10-15 14:20:43,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 14:20:43,369 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 14:20:43,369 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-15 14:20:43,370 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1797512186] [2024-10-15 14:20:43,370 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1797512186] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-15 14:20:43,370 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-15 14:20:43,371 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-15 14:20:43,372 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [760678583] [2024-10-15 14:20:43,372 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-15 14:20:43,375 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-15 14:20:43,376 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-15 14:20:43,392 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-15 14:20:43,393 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-15 14:20:43,394 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 14:20:43,543 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-15 14:20:43,543 INFO L93 Difference]: Finished difference Result 73 states and 84 transitions. [2024-10-15 14:20:43,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-15 14:20:43,546 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 14:20:43,546 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-15 14:20:43,550 INFO L225 Difference]: With dead ends: 73 [2024-10-15 14:20:43,550 INFO L226 Difference]: Without dead ends: 36 [2024-10-15 14:20:43,554 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 14:20:43,556 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 14:20:43,557 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 14:20:43,569 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2024-10-15 14:20:43,582 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 29. [2024-10-15 14:20:43,584 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 14:20:43,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 29 transitions. [2024-10-15 14:20:43,585 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 29 transitions. Word has length 14 [2024-10-15 14:20:43,585 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-15 14:20:43,585 INFO L471 AbstractCegarLoop]: Abstraction has 29 states and 29 transitions. [2024-10-15 14:20:43,586 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 14:20:43,586 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-15 14:20:43,587 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 29 transitions. [2024-10-15 14:20:43,588 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2024-10-15 14:20:43,588 INFO L207 NwaCegarLoop]: Found error trace [2024-10-15 14:20:43,588 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 14:20:43,588 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-15 14:20:43,588 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-15 14:20:43,589 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-15 14:20:43,589 INFO L85 PathProgramCache]: Analyzing trace with hash -1460209492, now seen corresponding path program 1 times [2024-10-15 14:20:43,589 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-15 14:20:43,590 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1028353326] [2024-10-15 14:20:43,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-15 14:20:43,590 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-15 14:20:43,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 14:20:43,916 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-10-15 14:20:43,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 14:20:43,920 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-15 14:20:43,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 14:20:43,925 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-10-15 14:20:43,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 14:20:43,930 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 14:20:43,931 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-15 14:20:43,931 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1028353326] [2024-10-15 14:20:43,931 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1028353326] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-15 14:20:43,931 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1382763414] [2024-10-15 14:20:43,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-15 14:20:43,932 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-15 14:20:43,932 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-10-15 14:20:43,937 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 14:20:43,941 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 14:20:44,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 14:20:44,105 INFO L255 TraceCheckSpWp]: Trace formula consists of 605 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-10-15 14:20:44,111 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-15 14:20:44,172 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 14:20:44,172 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-15 14:20:44,276 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 14:20:44,276 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1382763414] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-15 14:20:44,276 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-15 14:20:44,277 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7, 7] total 14 [2024-10-15 14:20:44,277 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [120124199] [2024-10-15 14:20:44,277 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-15 14:20:44,278 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-10-15 14:20:44,278 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-15 14:20:44,278 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-10-15 14:20:44,279 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2024-10-15 14:20:44,279 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 14:20:44,626 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-15 14:20:44,626 INFO L93 Difference]: Finished difference Result 68 states and 71 transitions. [2024-10-15 14:20:44,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-10-15 14:20:44,627 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 14:20:44,627 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-15 14:20:44,628 INFO L225 Difference]: With dead ends: 68 [2024-10-15 14:20:44,628 INFO L226 Difference]: Without dead ends: 66 [2024-10-15 14:20:44,629 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 14:20:44,630 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 14:20:44,630 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 14:20:44,631 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2024-10-15 14:20:44,642 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 63. [2024-10-15 14:20:44,642 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 14:20:44,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 65 transitions. [2024-10-15 14:20:44,644 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 65 transitions. Word has length 26 [2024-10-15 14:20:44,644 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-15 14:20:44,644 INFO L471 AbstractCegarLoop]: Abstraction has 63 states and 65 transitions. [2024-10-15 14:20:44,644 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 14:20:44,644 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-15 14:20:44,644 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 65 transitions. [2024-10-15 14:20:44,646 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2024-10-15 14:20:44,646 INFO L207 NwaCegarLoop]: Found error trace [2024-10-15 14:20:44,646 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 14:20:44,661 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 14:20:44,846 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 14:20:44,847 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-15 14:20:44,848 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-15 14:20:44,848 INFO L85 PathProgramCache]: Analyzing trace with hash -323841206, now seen corresponding path program 2 times [2024-10-15 14:20:44,848 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-15 14:20:44,848 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1861463044] [2024-10-15 14:20:44,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-15 14:20:44,848 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-15 14:20:44,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 14:20:45,176 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-10-15 14:20:45,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 14:20:45,180 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-15 14:20:45,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 14:20:45,184 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-10-15 14:20:45,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 14:20:45,187 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-10-15 14:20:45,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 14:20:45,189 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-15 14:20:45,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 14:20:45,191 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-10-15 14:20:45,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 14:20:45,193 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-15 14:20:45,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 14:20:45,195 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-15 14:20:45,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 14:20:45,197 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-10-15 14:20:45,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 14:20:45,201 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 14:20:45,201 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-15 14:20:45,201 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1861463044] [2024-10-15 14:20:45,201 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1861463044] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-15 14:20:45,202 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [582061778] [2024-10-15 14:20:45,202 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-15 14:20:45,202 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-15 14:20:45,202 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-10-15 14:20:45,203 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 14:20:45,204 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 14:20:45,367 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-10-15 14:20:45,367 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-15 14:20:45,378 INFO L255 TraceCheckSpWp]: Trace formula consists of 731 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-10-15 14:20:45,381 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-15 14:20:45,501 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 14:20:45,502 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-15 14:20:45,699 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 14:20:45,699 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [582061778] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-15 14:20:45,699 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-15 14:20:45,699 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 12, 10] total 21 [2024-10-15 14:20:45,700 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [430328674] [2024-10-15 14:20:45,700 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-15 14:20:45,700 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-10-15 14:20:45,700 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-15 14:20:45,701 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-10-15 14:20:45,701 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=351, Unknown=0, NotChecked=0, Total=420 [2024-10-15 14:20:45,701 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 14:20:46,457 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-15 14:20:46,457 INFO L93 Difference]: Finished difference Result 112 states and 124 transitions. [2024-10-15 14:20:46,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2024-10-15 14:20:46,458 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 14:20:46,458 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-15 14:20:46,459 INFO L225 Difference]: With dead ends: 112 [2024-10-15 14:20:46,459 INFO L226 Difference]: Without dead ends: 110 [2024-10-15 14:20:46,460 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 14:20:46,461 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, 0.3s IncrementalHoareTripleChecker+Time [2024-10-15 14:20:46,461 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [91 Valid, 148 Invalid, 694 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [95 Valid, 599 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-15 14:20:46,462 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states. [2024-10-15 14:20:46,488 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 107. [2024-10-15 14:20:46,489 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 14:20:46,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 117 transitions. [2024-10-15 14:20:46,493 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 117 transitions. Word has length 62 [2024-10-15 14:20:46,493 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-15 14:20:46,494 INFO L471 AbstractCegarLoop]: Abstraction has 107 states and 117 transitions. [2024-10-15 14:20:46,494 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 14:20:46,494 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-15 14:20:46,494 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 117 transitions. [2024-10-15 14:20:46,497 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2024-10-15 14:20:46,499 INFO L207 NwaCegarLoop]: Found error trace [2024-10-15 14:20:46,500 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 14:20:46,521 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 14:20:46,700 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 14:20:46,701 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-15 14:20:46,701 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-15 14:20:46,701 INFO L85 PathProgramCache]: Analyzing trace with hash 1221059462, now seen corresponding path program 3 times [2024-10-15 14:20:46,702 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-15 14:20:46,702 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [479366807] [2024-10-15 14:20:46,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-15 14:20:46,704 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-15 14:20:46,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 14:20:47,371 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-10-15 14:20:47,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 14:20:47,374 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-15 14:20:47,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 14:20:47,376 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-10-15 14:20:47,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 14:20:47,381 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-10-15 14:20:47,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 14:20:47,383 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-15 14:20:47,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 14:20:47,387 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-10-15 14:20:47,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 14:20:47,388 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-15 14:20:47,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 14:20:47,391 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-15 14:20:47,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 14:20:47,393 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-10-15 14:20:47,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 14:20:47,395 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-10-15 14:20:47,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 14:20:47,396 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-10-15 14:20:47,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 14:20:47,401 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-10-15 14:20:47,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 14:20:47,403 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-10-15 14:20:47,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 14:20:47,405 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-10-15 14:20:47,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 14:20:47,406 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-10-15 14:20:47,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 14:20:47,408 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-10-15 14:20:47,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 14:20:47,410 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-10-15 14:20:47,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 14:20:47,412 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-10-15 14:20:47,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 14:20:47,415 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-10-15 14:20:47,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 14:20:47,416 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2024-10-15 14:20:47,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 14:20:47,423 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2024-10-15 14:20:47,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 14:20:47,429 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 14:20:47,429 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-15 14:20:47,429 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [479366807] [2024-10-15 14:20:47,430 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [479366807] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-15 14:20:47,430 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2147270731] [2024-10-15 14:20:47,433 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-10-15 14:20:47,433 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-15 14:20:47,433 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-10-15 14:20:47,434 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 14:20:47,449 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 14:20:47,653 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2024-10-15 14:20:47,653 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-15 14:20:47,656 INFO L255 TraceCheckSpWp]: Trace formula consists of 647 conjuncts, 28 conjuncts are in the unsatisfiable core [2024-10-15 14:20:47,665 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-15 14:20:48,756 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-15 14:20:48,757 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 14:20:49,060 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 14:20:49,060 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-15 14:20:49,443 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2147270731] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-15 14:20:49,446 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-10-15 14:20:49,446 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 14] total 29 [2024-10-15 14:20:49,446 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1719398518] [2024-10-15 14:20:49,446 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-10-15 14:20:49,447 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2024-10-15 14:20:49,447 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-15 14:20:49,448 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2024-10-15 14:20:49,448 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=185, Invalid=1147, Unknown=0, NotChecked=0, Total=1332 [2024-10-15 14:20:49,450 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 14:20:51,030 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-15 14:20:51,030 INFO L93 Difference]: Finished difference Result 124 states and 136 transitions. [2024-10-15 14:20:51,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2024-10-15 14:20:51,030 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 14:20:51,031 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-15 14:20:51,031 INFO L225 Difference]: With dead ends: 124 [2024-10-15 14:20:51,031 INFO L226 Difference]: Without dead ends: 0 [2024-10-15 14:20:51,034 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 249 GetRequests, 143 SyntacticMatches, 35 SemanticMatches, 71 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 942 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=902, Invalid=4354, Unknown=0, NotChecked=0, Total=5256 [2024-10-15 14:20:51,035 INFO L432 NwaCegarLoop]: 29 mSDtfsCounter, 131 mSDsluCounter, 140 mSDsCounter, 0 mSdLazyCounter, 1247 mSolverCounterSat, 173 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 131 SdHoareTripleChecker+Valid, 169 SdHoareTripleChecker+Invalid, 1420 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 173 IncrementalHoareTripleChecker+Valid, 1247 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-10-15 14:20:51,035 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [131 Valid, 169 Invalid, 1420 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [173 Valid, 1247 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-10-15 14:20:51,035 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-10-15 14:20:51,035 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-10-15 14:20:51,036 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 14:20:51,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-10-15 14:20:51,036 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 134 [2024-10-15 14:20:51,036 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-15 14:20:51,036 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-10-15 14:20:51,036 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 14:20:51,036 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-15 14:20:51,036 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-10-15 14:20:51,036 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-10-15 14:20:51,038 INFO L782 garLoopResultBuilder]: Registering result SAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-10-15 14:20:51,054 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 14:20:51,242 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 14:20:51,246 INFO L407 BasicCegarLoop]: Path program histogram: [3, 1] [2024-10-15 14:20:51,248 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-10-15 14:20:52,710 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-10-15 14:20:52,718 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~#Id_MCDC_101~0!offset [2024-10-15 14:20:52,719 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #memory_int#2 [2024-10-15 14:20:52,719 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int#2,GLOBAL] [2024-10-15 14:20:52,719 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int#2,GLOBAL],[IdentifierExpression[~#Id_MCDC_101~0!base,]]] [2024-10-15 14:20:52,719 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~#Id_MCDC_101~0!offset [2024-10-15 14:20:52,719 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #memory_int#2 [2024-10-15 14:20:52,719 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int#2,GLOBAL] [2024-10-15 14:20:52,719 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int#2,GLOBAL],[IdentifierExpression[~#Id_MCDC_101~0!base,]]] [2024-10-15 14:20:52,720 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~#Id_MCDC_101~0!offset [2024-10-15 14:20:52,720 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #memory_int#2 [2024-10-15 14:20:52,720 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int#2,GLOBAL] [2024-10-15 14:20:52,720 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int#2,GLOBAL],[IdentifierExpression[~#Id_MCDC_101~0!base,]]] [2024-10-15 14:20:52,727 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression [2024-10-15 14:20:52,727 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression [2024-10-15 14:20:52,727 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression [2024-10-15 14:20:52,728 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression [2024-10-15 14:20:52,729 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 14:20:52,732 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression [2024-10-15 14:20:52,732 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression [2024-10-15 14:20:52,733 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression [2024-10-15 14:20:52,733 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression [2024-10-15 14:20:52,733 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 14:20:52,734 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.10 02:20:52 BoogieIcfgContainer [2024-10-15 14:20:52,734 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-10-15 14:20:52,734 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-15 14:20:52,734 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-15 14:20:52,734 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-15 14:20:52,738 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 02:20:42" (3/4) ... [2024-10-15 14:20:52,740 INFO L139 WitnessPrinter]: Generating witness for correct program [2024-10-15 14:20:52,793 INFO L149 WitnessManager]: Wrote witness to /storage/repos/certificate-witnesses-artifact/automizer/witness.yml [2024-10-15 14:20:52,793 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-15 14:20:52,794 INFO L158 Benchmark]: Toolchain (without parser) took 11035.18ms. Allocated memory was 178.3MB in the beginning and 369.1MB in the end (delta: 190.8MB). Free memory was 106.9MB in the beginning and 261.2MB in the end (delta: -154.3MB). Peak memory consumption was 36.7MB. Max. memory is 16.1GB. [2024-10-15 14:20:52,794 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 178.3MB. Free memory is still 142.0MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-15 14:20:52,794 INFO L158 Benchmark]: CACSL2BoogieTranslator took 355.73ms. Allocated memory is still 178.3MB. Free memory was 106.5MB in the beginning and 142.1MB in the end (delta: -35.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-10-15 14:20:52,794 INFO L158 Benchmark]: Boogie Procedure Inliner took 24.00ms. Allocated memory is still 178.3MB. Free memory was 142.1MB in the beginning and 140.6MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-15 14:20:52,794 INFO L158 Benchmark]: Boogie Preprocessor took 59.37ms. Allocated memory is still 178.3MB. Free memory was 140.6MB in the beginning and 135.8MB in the end (delta: 4.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-10-15 14:20:52,794 INFO L158 Benchmark]: RCFGBuilder took 540.18ms. Allocated memory is still 178.3MB. Free memory was 135.8MB in the beginning and 98.1MB in the end (delta: 37.7MB). Peak memory consumption was 37.7MB. Max. memory is 16.1GB. [2024-10-15 14:20:52,795 INFO L158 Benchmark]: TraceAbstraction took 9992.00ms. Allocated memory was 178.3MB in the beginning and 369.1MB in the end (delta: 190.8MB). Free memory was 97.4MB in the beginning and 263.3MB in the end (delta: -165.9MB). Peak memory consumption was 132.6MB. Max. memory is 16.1GB. [2024-10-15 14:20:52,796 INFO L158 Benchmark]: Witness Printer took 59.13ms. Allocated memory is still 369.1MB. Free memory was 263.3MB in the beginning and 261.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-15 14:20:52,797 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 178.3MB. Free memory is still 142.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 355.73ms. Allocated memory is still 178.3MB. Free memory was 106.5MB in the beginning and 142.1MB in the end (delta: -35.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 24.00ms. Allocated memory is still 178.3MB. Free memory was 142.1MB in the beginning and 140.6MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 59.37ms. Allocated memory is still 178.3MB. Free memory was 140.6MB in the beginning and 135.8MB in the end (delta: 4.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 540.18ms. Allocated memory is still 178.3MB. Free memory was 135.8MB in the beginning and 98.1MB in the end (delta: 37.7MB). Peak memory consumption was 37.7MB. Max. memory is 16.1GB. * TraceAbstraction took 9992.00ms. Allocated memory was 178.3MB in the beginning and 369.1MB in the end (delta: 190.8MB). Free memory was 97.4MB in the beginning and 263.3MB in the end (delta: -165.9MB). Peak memory consumption was 132.6MB. Max. memory is 16.1GB. * Witness Printer took 59.13ms. Allocated memory is still 369.1MB. Free memory was 263.3MB in the beginning and 261.2MB 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: ~#Id_MCDC_101~0!offset - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #memory_int#2 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int#2,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int#2,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#2 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int#2,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int#2,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#2 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int#2,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int#2,GLOBAL],[IdentifierExpression[~#Id_MCDC_101~0!base,]]] - 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: 8.5s, OverallIterations: 4, TraceHistogramMax: 11, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 2.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 342 SdHoareTripleChecker+Valid, 1.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 341 mSDsluCounter, 448 SdHoareTripleChecker+Invalid, 1.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 377 mSDsCounter, 330 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2150 IncrementalHoareTripleChecker+Invalid, 2480 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 330 mSolverCounterUnsat, 71 mSDtfsCounter, 2150 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 521 GetRequests, 333 SyntacticMatches, 37 SemanticMatches, 151 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1472 ImplicationChecksByTransitivity, 3.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=107occurred in iteration=3, InterpolantAutomatonStates: 98, 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, 0.5s SatisfiabilityAnalysisTime, 3.9s InterpolantComputationTime, 458 NumberOfCodeBlocks, 362 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 537 ConstructedInterpolants, 54 QuantifiedInterpolants, 2155 SizeOfPredicates, 16 NumberOfNonLiveVariables, 1983 ConjunctsInSsa, 60 ConjunctsInUnsatCore, 9 InterpolantComputations, 1 PerfectInterpolantSequences, 868/1471 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 != 41) && (41 != ((Id_MCDC_99 + 4294967295) % 4294967296))) && (Id_MCDC_98 == 1)) && (((Id_MCDC_99 + 4294967295) % 4294967296) <= 41)) || (((Id_MCDC_99 <= 10) && (0 <= 0)) && (Id_MCDC_98 == 1))) Ensures: ((((((Id_MCDC_99 != 41) && (41 != ((Id_MCDC_99 + 4294967295) % 4294967296))) && (Id_MCDC_98 == 1)) && (((Id_MCDC_99 + 4294967295) % 4294967296) <= 41)) || (((Id_MCDC_99 <= 10) && (0 <= 0)) && (Id_MCDC_98 == 1))) && (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 14:20:52,824 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE