./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/nla-digbench-scaling/ps3-ll_valuebound2.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 --cacsl2boogietranslator.check.absence.of.signed.integer.overflows true --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a9b967e5 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/certificate-witnesses-artifact/automizer/data/config -Xmx15G -Xms4m -jar /storage/repos/certificate-witnesses-artifact/automizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/certificate-witnesses-artifact/automizer/data -tc /storage/repos/certificate-witnesses-artifact/automizer/config/AutomizerReach.xml -i ../sv-benchmarks/c/nla-digbench-scaling/ps3-ll_valuebound2.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 f3e506cafffeea5cb7f2c70b249646e3661acb1536bc2a1bf01f7118a770ad1d --procedureinliner.inline.calls.to.implemented.procedures NEVER --traceabstraction.positions.where.we.compute.the.hoare.annotation All --witnessprinter.yaml.format.version 2.1 --cacsl2boogietranslator.check.absence.of.signed.integer.overflows true --- Real Ultimate output --- This is Ultimate 0.2.4-dev-a9b967e-m [2024-09-12 19:36:27,798 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-09-12 19:36:27,879 INFO L114 SettingsManager]: Loading settings from /storage/repos/certificate-witnesses-artifact/automizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-09-12 19:36:27,885 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-09-12 19:36:27,888 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-09-12 19:36:27,918 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-09-12 19:36:27,921 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-09-12 19:36:27,921 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-09-12 19:36:27,921 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-09-12 19:36:27,922 INFO L153 SettingsManager]: * Use memory slicer=true [2024-09-12 19:36:27,922 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-09-12 19:36:27,922 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-09-12 19:36:27,923 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-09-12 19:36:27,924 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-09-12 19:36:27,924 INFO L153 SettingsManager]: * Use SBE=true [2024-09-12 19:36:27,925 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-09-12 19:36:27,925 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-09-12 19:36:27,925 INFO L153 SettingsManager]: * sizeof long=4 [2024-09-12 19:36:27,926 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-09-12 19:36:27,926 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-09-12 19:36:27,926 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-09-12 19:36:27,929 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-09-12 19:36:27,930 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-09-12 19:36:27,930 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-09-12 19:36:27,930 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-09-12 19:36:27,930 INFO L153 SettingsManager]: * sizeof long double=12 [2024-09-12 19:36:27,930 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-09-12 19:36:27,931 INFO L153 SettingsManager]: * Use constant arrays=true [2024-09-12 19:36:27,931 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-09-12 19:36:27,931 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-09-12 19:36:27,931 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-09-12 19:36:27,932 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-09-12 19:36:27,932 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-12 19:36:27,932 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-09-12 19:36:27,933 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-09-12 19:36:27,933 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-09-12 19:36:27,933 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-09-12 19:36:27,934 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-09-12 19:36:27,934 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-09-12 19:36:27,934 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-09-12 19:36:27,934 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-09-12 19:36:27,935 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-09-12 19:36:27,935 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/certificate-witnesses-artifact/automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f3e506cafffeea5cb7f2c70b249646e3661acb1536bc2a1bf01f7118a770ad1d Applying setting for plugin de.uni_freiburg.informatik.ultimate.boogie.procedureinliner: Inline calls to implemented procedures -> NEVER Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> All Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: YAML Format version -> 2.1 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of signed integer overflows -> true [2024-09-12 19:36:28,268 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-09-12 19:36:28,292 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-09-12 19:36:28,295 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-09-12 19:36:28,296 INFO L270 PluginConnector]: Initializing CDTParser... [2024-09-12 19:36:28,297 INFO L274 PluginConnector]: CDTParser initialized [2024-09-12 19:36:28,298 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/automizer/../sv-benchmarks/c/nla-digbench-scaling/ps3-ll_valuebound2.c [2024-09-12 19:36:29,802 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-09-12 19:36:29,983 INFO L384 CDTParser]: Found 1 translation units. [2024-09-12 19:36:29,984 INFO L180 CDTParser]: Scanning /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/nla-digbench-scaling/ps3-ll_valuebound2.c [2024-09-12 19:36:29,995 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/certificate-witnesses-artifact/automizer/data/000e7f6ad/2c7eaa947cdd4f3fa58e37639e29b9a0/FLAGf5b0fbbe1 [2024-09-12 19:36:30,377 INFO L435 CDTParser]: Successfully deleted /storage/repos/certificate-witnesses-artifact/automizer/data/000e7f6ad/2c7eaa947cdd4f3fa58e37639e29b9a0 [2024-09-12 19:36:30,379 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-09-12 19:36:30,380 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-09-12 19:36:30,381 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-09-12 19:36:30,382 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-09-12 19:36:30,387 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-09-12 19:36:30,388 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.09 07:36:30" (1/1) ... [2024-09-12 19:36:30,389 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4459597f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:36:30, skipping insertion in model container [2024-09-12 19:36:30,389 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.09 07:36:30" (1/1) ... [2024-09-12 19:36:30,409 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-09-12 19:36:30,555 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/nla-digbench-scaling/ps3-ll_valuebound2.c[458,471] [2024-09-12 19:36:30,576 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-12 19:36:30,588 INFO L200 MainTranslator]: Completed pre-run [2024-09-12 19:36:30,601 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/nla-digbench-scaling/ps3-ll_valuebound2.c[458,471] [2024-09-12 19:36:30,613 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-12 19:36:30,630 INFO L204 MainTranslator]: Completed translation [2024-09-12 19:36:30,630 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:36:30 WrapperNode [2024-09-12 19:36:30,631 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-09-12 19:36:30,632 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-09-12 19:36:30,632 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-09-12 19:36:30,632 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-09-12 19:36:30,638 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:36:30" (1/1) ... [2024-09-12 19:36:30,644 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:36:30" (1/1) ... [2024-09-12 19:36:30,649 INFO L138 Inliner]: procedures = 14, calls = 10, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2024-09-12 19:36:30,649 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-09-12 19:36:30,650 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-09-12 19:36:30,652 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-09-12 19:36:30,652 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-09-12 19:36:30,659 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:36:30" (1/1) ... [2024-09-12 19:36:30,660 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:36:30" (1/1) ... [2024-09-12 19:36:30,661 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:36:30" (1/1) ... [2024-09-12 19:36:30,672 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-09-12 19:36:30,672 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:36:30" (1/1) ... [2024-09-12 19:36:30,672 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:36:30" (1/1) ... [2024-09-12 19:36:30,675 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:36:30" (1/1) ... [2024-09-12 19:36:30,681 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:36:30" (1/1) ... [2024-09-12 19:36:30,682 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:36:30" (1/1) ... [2024-09-12 19:36:30,683 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:36:30" (1/1) ... [2024-09-12 19:36:30,684 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-09-12 19:36:30,685 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-09-12 19:36:30,685 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-09-12 19:36:30,685 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-09-12 19:36:30,686 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:36:30" (1/1) ... [2024-09-12 19:36:30,691 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-12 19:36:30,703 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:36:30,719 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/certificate-witnesses-artifact/automizer/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-09-12 19:36:30,724 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-09-12 19:36:30,763 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-09-12 19:36:30,763 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-09-12 19:36:30,763 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-09-12 19:36:30,764 INFO L130 BoogieDeclarations]: Found specification of procedure main [2024-09-12 19:36:30,764 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2024-09-12 19:36:30,764 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-09-12 19:36:30,764 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2024-09-12 19:36:30,764 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2024-09-12 19:36:30,764 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-09-12 19:36:30,765 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-09-12 19:36:30,766 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-09-12 19:36:30,766 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-09-12 19:36:30,818 INFO L242 CfgBuilder]: Building ICFG [2024-09-12 19:36:30,820 INFO L268 CfgBuilder]: Building CFG for each procedure with an implementation [2024-09-12 19:36:31,190 INFO L? ?]: Removed 59 outVars from TransFormulas that were not future-live. [2024-09-12 19:36:31,190 INFO L291 CfgBuilder]: Performing block encoding [2024-09-12 19:36:31,222 INFO L313 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-09-12 19:36:31,224 INFO L318 CfgBuilder]: Removed 1 assume(true) statements. [2024-09-12 19:36:31,225 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.09 07:36:31 BoogieIcfgContainer [2024-09-12 19:36:31,225 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-09-12 19:36:31,228 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-09-12 19:36:31,228 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-09-12 19:36:31,231 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-09-12 19:36:31,232 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.09 07:36:30" (1/3) ... [2024-09-12 19:36:31,233 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@205f8301 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.09 07:36:31, skipping insertion in model container [2024-09-12 19:36:31,233 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:36:30" (2/3) ... [2024-09-12 19:36:31,233 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@205f8301 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.09 07:36:31, skipping insertion in model container [2024-09-12 19:36:31,235 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.09 07:36:31" (3/3) ... [2024-09-12 19:36:31,236 INFO L112 eAbstractionObserver]: Analyzing ICFG ps3-ll_valuebound2.c [2024-09-12 19:36:31,251 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:All NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-09-12 19:36:31,252 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 45 error locations. [2024-09-12 19:36:31,322 INFO L335 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-09-12 19:36:31,328 INFO L336 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=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;@54df7b74, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-09-12 19:36:31,329 INFO L337 AbstractCegarLoop]: Starting to check reachability of 45 error locations. [2024-09-12 19:36:31,333 INFO L276 IsEmpty]: Start isEmpty. Operand has 113 states, 58 states have (on average 1.8620689655172413) internal successors, (108), 103 states have internal predecessors, (108), 5 states have call successors, (5), 4 states have call predecessors, (5), 4 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-09-12 19:36:31,339 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-09-12 19:36:31,339 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:36:31,340 INFO L216 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:36:31,341 INFO L399 AbstractCegarLoop]: === Iteration 1 === Targeting mainErr26ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 42 more)] === [2024-09-12 19:36:31,346 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:36:31,346 INFO L85 PathProgramCache]: Analyzing trace with hash -965623358, now seen corresponding path program 1 times [2024-09-12 19:36:31,354 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:36:31,354 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1461704419] [2024-09-12 19:36:31,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:36:31,355 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:36:31,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:36:31,462 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:36:31,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:36:31,481 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 19:36:31,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:36:31,491 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 19:36:31,493 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:36:31,494 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1461704419] [2024-09-12 19:36:31,494 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1461704419] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 19:36:31,494 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 19:36:31,495 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-09-12 19:36:31,496 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [272533367] [2024-09-12 19:36:31,497 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:36:31,500 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-09-12 19:36:31,500 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:36:31,517 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-09-12 19:36:31,517 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-09-12 19:36:31,520 INFO L87 Difference]: Start difference. First operand has 113 states, 58 states have (on average 1.8620689655172413) internal successors, (108), 103 states have internal predecessors, (108), 5 states have call successors, (5), 4 states have call predecessors, (5), 4 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Second operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 1 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2024-09-12 19:36:31,564 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:36:31,565 INFO L93 Difference]: Finished difference Result 213 states and 229 transitions. [2024-09-12 19:36:31,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-12 19:36:31,567 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 1 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 13 [2024-09-12 19:36:31,567 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:36:31,575 INFO L225 Difference]: With dead ends: 213 [2024-09-12 19:36:31,575 INFO L226 Difference]: Without dead ends: 104 [2024-09-12 19:36:31,579 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-09-12 19:36:31,583 INFO L434 NwaCegarLoop]: 107 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 107 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-09-12 19:36:31,583 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 107 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-09-12 19:36:31,598 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2024-09-12 19:36:31,624 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 104. [2024-09-12 19:36:31,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 104 states, 56 states have (on average 1.7321428571428572) internal successors, (97), 96 states have internal predecessors, (97), 5 states have call successors, (5), 4 states have call predecessors, (5), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-09-12 19:36:31,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 105 transitions. [2024-09-12 19:36:31,634 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 105 transitions. Word has length 13 [2024-09-12 19:36:31,634 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:36:31,635 INFO L474 AbstractCegarLoop]: Abstraction has 104 states and 105 transitions. [2024-09-12 19:36:31,635 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 1 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2024-09-12 19:36:31,635 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:36:31,636 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 105 transitions. [2024-09-12 19:36:31,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-09-12 19:36:31,638 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:36:31,638 INFO L216 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:36:31,638 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-09-12 19:36:31,638 INFO L399 AbstractCegarLoop]: === Iteration 2 === Targeting mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 42 more)] === [2024-09-12 19:36:31,639 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:36:31,639 INFO L85 PathProgramCache]: Analyzing trace with hash -908366977, now seen corresponding path program 1 times [2024-09-12 19:36:31,639 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:36:31,639 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [877288493] [2024-09-12 19:36:31,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:36:31,640 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:36:31,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:36:31,712 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:36:31,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:36:31,727 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 19:36:31,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:36:31,736 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 19:36:31,736 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:36:31,736 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [877288493] [2024-09-12 19:36:31,736 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [877288493] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 19:36:31,737 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 19:36:31,737 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-09-12 19:36:31,737 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [932184970] [2024-09-12 19:36:31,738 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:36:31,739 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-09-12 19:36:31,739 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:36:31,740 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-09-12 19:36:31,740 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-12 19:36:31,740 INFO L87 Difference]: Start difference. First operand 104 states and 105 transitions. Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-09-12 19:36:31,894 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:36:31,895 INFO L93 Difference]: Finished difference Result 178 states and 194 transitions. [2024-09-12 19:36:31,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-12 19:36:31,896 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 13 [2024-09-12 19:36:31,896 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:36:31,898 INFO L225 Difference]: With dead ends: 178 [2024-09-12 19:36:31,898 INFO L226 Difference]: Without dead ends: 173 [2024-09-12 19:36:31,898 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-12 19:36:31,900 INFO L434 NwaCegarLoop]: 73 mSDtfsCounter, 66 mSDsluCounter, 66 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 139 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 19:36:31,900 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [67 Valid, 139 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 19:36:31,902 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 173 states. [2024-09-12 19:36:31,915 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 173 to 134. [2024-09-12 19:36:31,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 134 states, 85 states have (on average 1.7176470588235293) internal successors, (146), 125 states have internal predecessors, (146), 6 states have call successors, (6), 4 states have call predecessors, (6), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-09-12 19:36:31,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 156 transitions. [2024-09-12 19:36:31,918 INFO L78 Accepts]: Start accepts. Automaton has 134 states and 156 transitions. Word has length 13 [2024-09-12 19:36:31,918 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:36:31,918 INFO L474 AbstractCegarLoop]: Abstraction has 134 states and 156 transitions. [2024-09-12 19:36:31,919 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-09-12 19:36:31,919 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:36:31,919 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 156 transitions. [2024-09-12 19:36:31,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-09-12 19:36:31,920 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:36:31,920 INFO L216 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:36:31,920 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-09-12 19:36:31,920 INFO L399 AbstractCegarLoop]: === Iteration 3 === Targeting mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 42 more)] === [2024-09-12 19:36:31,921 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:36:31,921 INFO L85 PathProgramCache]: Analyzing trace with hash -1062301951, now seen corresponding path program 1 times [2024-09-12 19:36:31,921 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:36:31,921 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [286773127] [2024-09-12 19:36:31,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:36:31,922 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:36:31,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:36:31,977 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:36:31,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:36:31,985 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 19:36:31,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:36:31,992 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 19:36:31,992 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:36:31,992 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [286773127] [2024-09-12 19:36:31,992 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [286773127] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 19:36:31,993 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 19:36:31,993 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-09-12 19:36:31,995 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1612664335] [2024-09-12 19:36:31,995 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:36:31,996 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-09-12 19:36:31,996 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:36:31,997 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-09-12 19:36:31,998 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-12 19:36:31,998 INFO L87 Difference]: Start difference. First operand 134 states and 156 transitions. Second operand has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-09-12 19:36:32,213 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:36:32,214 INFO L93 Difference]: Finished difference Result 171 states and 187 transitions. [2024-09-12 19:36:32,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-12 19:36:32,215 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 15 [2024-09-12 19:36:32,215 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:36:32,217 INFO L225 Difference]: With dead ends: 171 [2024-09-12 19:36:32,219 INFO L226 Difference]: Without dead ends: 153 [2024-09-12 19:36:32,219 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-12 19:36:32,221 INFO L434 NwaCegarLoop]: 58 mSDtfsCounter, 41 mSDsluCounter, 31 mSDsCounter, 0 mSdLazyCounter, 120 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 89 SdHoareTripleChecker+Invalid, 137 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 120 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 19:36:32,221 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 89 Invalid, 137 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 120 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 19:36:32,228 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 153 states. [2024-09-12 19:36:32,244 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 153 to 146. [2024-09-12 19:36:32,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 146 states, 97 states have (on average 1.5463917525773196) internal successors, (150), 137 states have internal predecessors, (150), 6 states have call successors, (6), 4 states have call predecessors, (6), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-09-12 19:36:32,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 160 transitions. [2024-09-12 19:36:32,254 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 160 transitions. Word has length 15 [2024-09-12 19:36:32,254 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:36:32,255 INFO L474 AbstractCegarLoop]: Abstraction has 146 states and 160 transitions. [2024-09-12 19:36:32,255 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-09-12 19:36:32,255 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:36:32,260 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 160 transitions. [2024-09-12 19:36:32,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2024-09-12 19:36:32,261 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:36:32,261 INFO L216 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:36:32,261 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-09-12 19:36:32,261 INFO L399 AbstractCegarLoop]: === Iteration 4 === Targeting mainErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 42 more)] === [2024-09-12 19:36:32,261 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:36:32,262 INFO L85 PathProgramCache]: Analyzing trace with hash 1134487943, now seen corresponding path program 1 times [2024-09-12 19:36:32,262 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:36:32,262 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1154575408] [2024-09-12 19:36:32,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:36:32,262 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:36:32,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:36:32,373 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:36:32,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:36:32,382 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 19:36:32,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:36:32,390 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 19:36:32,393 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:36:32,393 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1154575408] [2024-09-12 19:36:32,393 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1154575408] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 19:36:32,393 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 19:36:32,393 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-12 19:36:32,394 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [962163778] [2024-09-12 19:36:32,394 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:36:32,394 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-12 19:36:32,394 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:36:32,395 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-12 19:36:32,395 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-09-12 19:36:32,395 INFO L87 Difference]: Start difference. First operand 146 states and 160 transitions. Second operand has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-09-12 19:36:32,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:36:32,570 INFO L93 Difference]: Finished difference Result 161 states and 171 transitions. [2024-09-12 19:36:32,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-12 19:36:32,570 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 21 [2024-09-12 19:36:32,571 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:36:32,572 INFO L225 Difference]: With dead ends: 161 [2024-09-12 19:36:32,572 INFO L226 Difference]: Without dead ends: 155 [2024-09-12 19:36:32,576 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-09-12 19:36:32,577 INFO L434 NwaCegarLoop]: 57 mSDtfsCounter, 83 mSDsluCounter, 66 mSDsCounter, 0 mSdLazyCounter, 91 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 84 SdHoareTripleChecker+Valid, 123 SdHoareTripleChecker+Invalid, 98 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 91 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 19:36:32,577 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [84 Valid, 123 Invalid, 98 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 91 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 19:36:32,578 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 155 states. [2024-09-12 19:36:32,606 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 155 to 149. [2024-09-12 19:36:32,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 149 states, 100 states have (on average 1.5) internal successors, (150), 140 states have internal predecessors, (150), 6 states have call successors, (6), 4 states have call predecessors, (6), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-09-12 19:36:32,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 149 states to 149 states and 160 transitions. [2024-09-12 19:36:32,611 INFO L78 Accepts]: Start accepts. Automaton has 149 states and 160 transitions. Word has length 21 [2024-09-12 19:36:32,612 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:36:32,612 INFO L474 AbstractCegarLoop]: Abstraction has 149 states and 160 transitions. [2024-09-12 19:36:32,613 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-09-12 19:36:32,613 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:36:32,613 INFO L276 IsEmpty]: Start isEmpty. Operand 149 states and 160 transitions. [2024-09-12 19:36:32,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2024-09-12 19:36:32,614 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:36:32,614 INFO L216 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:36:32,614 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-09-12 19:36:32,614 INFO L399 AbstractCegarLoop]: === Iteration 5 === Targeting mainErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 42 more)] === [2024-09-12 19:36:32,614 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:36:32,615 INFO L85 PathProgramCache]: Analyzing trace with hash 809387939, now seen corresponding path program 1 times [2024-09-12 19:36:32,615 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:36:32,615 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [713091374] [2024-09-12 19:36:32,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:36:32,615 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:36:32,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 19:36:32,639 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1165368251] [2024-09-12 19:36:32,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:36:32,642 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:36:32,643 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:36:32,646 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 19:36:32,649 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-09-12 19:36:32,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:36:32,706 INFO L262 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-09-12 19:36:32,712 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:36:32,782 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 19:36:32,783 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 19:36:32,783 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:36:32,783 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [713091374] [2024-09-12 19:36:32,784 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 19:36:32,784 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1165368251] [2024-09-12 19:36:32,784 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1165368251] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 19:36:32,785 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 19:36:32,785 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-09-12 19:36:32,785 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [862276368] [2024-09-12 19:36:32,785 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:36:32,786 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-09-12 19:36:32,786 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:36:32,786 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-09-12 19:36:32,787 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-12 19:36:32,787 INFO L87 Difference]: Start difference. First operand 149 states and 160 transitions. Second operand has 3 states, 2 states have (on average 8.5) internal successors, (17), 3 states have internal predecessors, (17), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-09-12 19:36:32,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:36:32,948 INFO L93 Difference]: Finished difference Result 159 states and 163 transitions. [2024-09-12 19:36:32,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-12 19:36:32,949 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 8.5) internal successors, (17), 3 states have internal predecessors, (17), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 22 [2024-09-12 19:36:32,950 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:36:32,959 INFO L225 Difference]: With dead ends: 159 [2024-09-12 19:36:32,961 INFO L226 Difference]: Without dead ends: 153 [2024-09-12 19:36:32,962 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-12 19:36:32,963 INFO L434 NwaCegarLoop]: 66 mSDtfsCounter, 34 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 120 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 89 SdHoareTripleChecker+Invalid, 125 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 120 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 19:36:32,963 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 89 Invalid, 125 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 120 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 19:36:32,964 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 153 states. [2024-09-12 19:36:32,986 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 153 to 150. [2024-09-12 19:36:32,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 150 states, 101 states have (on average 1.4455445544554455) internal successors, (146), 141 states have internal predecessors, (146), 6 states have call successors, (6), 4 states have call predecessors, (6), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-09-12 19:36:32,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 156 transitions. [2024-09-12 19:36:32,989 INFO L78 Accepts]: Start accepts. Automaton has 150 states and 156 transitions. Word has length 22 [2024-09-12 19:36:32,989 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:36:32,989 INFO L474 AbstractCegarLoop]: Abstraction has 150 states and 156 transitions. [2024-09-12 19:36:32,989 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 8.5) internal successors, (17), 3 states have internal predecessors, (17), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-09-12 19:36:32,990 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:36:32,990 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 156 transitions. [2024-09-12 19:36:32,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2024-09-12 19:36:32,991 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:36:32,991 INFO L216 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:36:33,009 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-09-12 19:36:33,192 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:36:33,193 INFO L399 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 42 more)] === [2024-09-12 19:36:33,193 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:36:33,193 INFO L85 PathProgramCache]: Analyzing trace with hash -378714467, now seen corresponding path program 1 times [2024-09-12 19:36:33,193 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:36:33,193 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [405944081] [2024-09-12 19:36:33,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:36:33,194 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:36:33,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 19:36:33,225 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1271734674] [2024-09-12 19:36:33,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:36:33,225 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:36:33,225 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:36:33,228 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 19:36:33,229 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-09-12 19:36:33,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:36:33,283 INFO L262 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-09-12 19:36:33,286 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:36:33,451 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 19:36:33,452 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 19:36:33,452 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:36:33,452 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [405944081] [2024-09-12 19:36:33,452 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 19:36:33,452 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1271734674] [2024-09-12 19:36:33,452 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1271734674] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 19:36:33,452 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 19:36:33,452 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-09-12 19:36:33,453 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [582839729] [2024-09-12 19:36:33,453 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:36:33,454 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-12 19:36:33,454 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:36:33,455 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-12 19:36:33,455 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-09-12 19:36:33,455 INFO L87 Difference]: Start difference. First operand 150 states and 156 transitions. Second operand has 5 states, 5 states have (on average 5.6) internal successors, (28), 4 states have internal predecessors, (28), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-09-12 19:36:33,664 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:36:33,664 INFO L93 Difference]: Finished difference Result 159 states and 162 transitions. [2024-09-12 19:36:33,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-12 19:36:33,665 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.6) internal successors, (28), 4 states have internal predecessors, (28), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 34 [2024-09-12 19:36:33,665 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:36:33,666 INFO L225 Difference]: With dead ends: 159 [2024-09-12 19:36:33,666 INFO L226 Difference]: Without dead ends: 138 [2024-09-12 19:36:33,666 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-09-12 19:36:33,667 INFO L434 NwaCegarLoop]: 63 mSDtfsCounter, 28 mSDsluCounter, 145 mSDsCounter, 0 mSdLazyCounter, 211 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 208 SdHoareTripleChecker+Invalid, 212 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 211 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 19:36:33,667 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 208 Invalid, 212 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 211 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 19:36:33,668 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138 states. [2024-09-12 19:36:33,684 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138 to 136. [2024-09-12 19:36:33,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 136 states, 86 states have (on average 1.5116279069767442) internal successors, (130), 126 states have internal predecessors, (130), 6 states have call successors, (6), 5 states have call predecessors, (6), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-09-12 19:36:33,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 136 states and 140 transitions. [2024-09-12 19:36:33,691 INFO L78 Accepts]: Start accepts. Automaton has 136 states and 140 transitions. Word has length 34 [2024-09-12 19:36:33,691 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:36:33,691 INFO L474 AbstractCegarLoop]: Abstraction has 136 states and 140 transitions. [2024-09-12 19:36:33,694 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.6) internal successors, (28), 4 states have internal predecessors, (28), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-09-12 19:36:33,694 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:36:33,694 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 140 transitions. [2024-09-12 19:36:33,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2024-09-12 19:36:33,695 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:36:33,695 INFO L216 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:36:33,712 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-09-12 19:36:33,896 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2024-09-12 19:36:33,896 INFO L399 AbstractCegarLoop]: === Iteration 7 === Targeting mainErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 42 more)] === [2024-09-12 19:36:33,897 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:36:33,897 INFO L85 PathProgramCache]: Analyzing trace with hash 601306291, now seen corresponding path program 1 times [2024-09-12 19:36:33,897 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:36:33,898 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1265878420] [2024-09-12 19:36:33,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:36:33,898 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:36:33,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:36:33,952 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:36:33,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:36:33,961 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 19:36:33,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:36:33,964 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-09-12 19:36:33,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:36:33,973 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 19:36:33,977 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:36:33,977 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1265878420] [2024-09-12 19:36:33,977 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1265878420] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 19:36:33,977 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 19:36:33,978 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-09-12 19:36:33,978 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1683579303] [2024-09-12 19:36:33,978 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:36:33,978 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-09-12 19:36:33,978 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:36:33,979 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-09-12 19:36:33,979 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-12 19:36:33,979 INFO L87 Difference]: Start difference. First operand 136 states and 140 transitions. Second operand has 3 states, 2 states have (on average 15.0) internal successors, (30), 3 states have internal predecessors, (30), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-09-12 19:36:34,006 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:36:34,009 INFO L93 Difference]: Finished difference Result 138 states and 140 transitions. [2024-09-12 19:36:34,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-12 19:36:34,010 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 15.0) internal successors, (30), 3 states have internal predecessors, (30), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 37 [2024-09-12 19:36:34,010 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:36:34,011 INFO L225 Difference]: With dead ends: 138 [2024-09-12 19:36:34,011 INFO L226 Difference]: Without dead ends: 136 [2024-09-12 19:36:34,012 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-12 19:36:34,012 INFO L434 NwaCegarLoop]: 101 mSDtfsCounter, 1 mSDsluCounter, 96 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 197 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-09-12 19:36:34,013 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 197 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-09-12 19:36:34,013 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136 states. [2024-09-12 19:36:34,021 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136 to 136. [2024-09-12 19:36:34,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 136 states, 86 states have (on average 1.4883720930232558) internal successors, (128), 126 states have internal predecessors, (128), 6 states have call successors, (6), 5 states have call predecessors, (6), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-09-12 19:36:34,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 136 states and 138 transitions. [2024-09-12 19:36:34,023 INFO L78 Accepts]: Start accepts. Automaton has 136 states and 138 transitions. Word has length 37 [2024-09-12 19:36:34,023 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:36:34,024 INFO L474 AbstractCegarLoop]: Abstraction has 136 states and 138 transitions. [2024-09-12 19:36:34,025 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 15.0) internal successors, (30), 3 states have internal predecessors, (30), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-09-12 19:36:34,025 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:36:34,025 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 138 transitions. [2024-09-12 19:36:34,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2024-09-12 19:36:34,026 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:36:34,026 INFO L216 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:36:34,026 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-09-12 19:36:34,027 INFO L399 AbstractCegarLoop]: === Iteration 8 === Targeting mainErr23ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 42 more)] === [2024-09-12 19:36:34,030 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:36:34,030 INFO L85 PathProgramCache]: Analyzing trace with hash -1649548523, now seen corresponding path program 1 times [2024-09-12 19:36:34,030 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:36:34,030 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1636785737] [2024-09-12 19:36:34,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:36:34,030 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:36:34,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 19:36:34,060 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [859544] [2024-09-12 19:36:34,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:36:34,060 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:36:34,060 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:36:34,062 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 19:36:34,065 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-09-12 19:36:34,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:36:34,114 INFO L262 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-09-12 19:36:34,115 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:36:34,173 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 19:36:34,173 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 19:36:34,173 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:36:34,173 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1636785737] [2024-09-12 19:36:34,173 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 19:36:34,174 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [859544] [2024-09-12 19:36:34,174 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [859544] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 19:36:34,174 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 19:36:34,174 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-12 19:36:34,174 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1660933405] [2024-09-12 19:36:34,174 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:36:34,175 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-12 19:36:34,175 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:36:34,175 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-12 19:36:34,175 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-09-12 19:36:34,176 INFO L87 Difference]: Start difference. First operand 136 states and 138 transitions. Second operand has 4 states, 3 states have (on average 11.666666666666666) internal successors, (35), 4 states have internal predecessors, (35), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-09-12 19:36:34,368 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:36:34,368 INFO L93 Difference]: Finished difference Result 206 states and 222 transitions. [2024-09-12 19:36:34,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-12 19:36:34,369 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 11.666666666666666) internal successors, (35), 4 states have internal predecessors, (35), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 42 [2024-09-12 19:36:34,369 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:36:34,370 INFO L225 Difference]: With dead ends: 206 [2024-09-12 19:36:34,370 INFO L226 Difference]: Without dead ends: 187 [2024-09-12 19:36:34,371 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-09-12 19:36:34,371 INFO L434 NwaCegarLoop]: 61 mSDtfsCounter, 51 mSDsluCounter, 62 mSDsCounter, 0 mSdLazyCounter, 220 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 123 SdHoareTripleChecker+Invalid, 238 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 220 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 19:36:34,372 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [52 Valid, 123 Invalid, 238 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 220 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 19:36:34,373 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 187 states. [2024-09-12 19:36:34,385 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 187 to 176. [2024-09-12 19:36:34,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 176 states, 125 states have (on average 1.456) internal successors, (182), 165 states have internal predecessors, (182), 7 states have call successors, (7), 5 states have call predecessors, (7), 4 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-09-12 19:36:34,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 176 states to 176 states and 194 transitions. [2024-09-12 19:36:34,387 INFO L78 Accepts]: Start accepts. Automaton has 176 states and 194 transitions. Word has length 42 [2024-09-12 19:36:34,388 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:36:34,388 INFO L474 AbstractCegarLoop]: Abstraction has 176 states and 194 transitions. [2024-09-12 19:36:34,388 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 11.666666666666666) internal successors, (35), 4 states have internal predecessors, (35), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-09-12 19:36:34,388 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:36:34,389 INFO L276 IsEmpty]: Start isEmpty. Operand 176 states and 194 transitions. [2024-09-12 19:36:34,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2024-09-12 19:36:34,392 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:36:34,392 INFO L216 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:36:34,407 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-09-12 19:36:34,592 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2024-09-12 19:36:34,593 INFO L399 AbstractCegarLoop]: === Iteration 9 === Targeting mainErr25ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 42 more)] === [2024-09-12 19:36:34,593 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:36:34,593 INFO L85 PathProgramCache]: Analyzing trace with hash -373194857, now seen corresponding path program 1 times [2024-09-12 19:36:34,594 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:36:34,594 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [545592655] [2024-09-12 19:36:34,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:36:34,594 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:36:34,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:36:34,696 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:36:34,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:36:34,700 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 19:36:34,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:36:34,703 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-09-12 19:36:34,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:36:34,707 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 19:36:34,710 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:36:34,710 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [545592655] [2024-09-12 19:36:34,710 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [545592655] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 19:36:34,711 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 19:36:34,711 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-12 19:36:34,711 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1015178834] [2024-09-12 19:36:34,711 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:36:34,711 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-12 19:36:34,715 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:36:34,715 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-12 19:36:34,716 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-09-12 19:36:34,716 INFO L87 Difference]: Start difference. First operand 176 states and 194 transitions. Second operand has 4 states, 3 states have (on average 12.333333333333334) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-09-12 19:36:34,886 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:36:34,886 INFO L93 Difference]: Finished difference Result 177 states and 194 transitions. [2024-09-12 19:36:34,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-12 19:36:34,887 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 12.333333333333334) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 44 [2024-09-12 19:36:34,888 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:36:34,889 INFO L225 Difference]: With dead ends: 177 [2024-09-12 19:36:34,890 INFO L226 Difference]: Without dead ends: 176 [2024-09-12 19:36:34,891 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-09-12 19:36:34,891 INFO L434 NwaCegarLoop]: 82 mSDtfsCounter, 23 mSDsluCounter, 89 mSDsCounter, 0 mSdLazyCounter, 142 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 171 SdHoareTripleChecker+Invalid, 143 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 142 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 19:36:34,892 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 171 Invalid, 143 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 142 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 19:36:34,893 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 176 states. [2024-09-12 19:36:34,907 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 176 to 176. [2024-09-12 19:36:34,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 176 states, 125 states have (on average 1.448) internal successors, (181), 165 states have internal predecessors, (181), 7 states have call successors, (7), 5 states have call predecessors, (7), 4 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-09-12 19:36:34,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 176 states to 176 states and 193 transitions. [2024-09-12 19:36:34,909 INFO L78 Accepts]: Start accepts. Automaton has 176 states and 193 transitions. Word has length 44 [2024-09-12 19:36:34,909 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:36:34,909 INFO L474 AbstractCegarLoop]: Abstraction has 176 states and 193 transitions. [2024-09-12 19:36:34,910 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 12.333333333333334) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-09-12 19:36:34,910 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:36:34,910 INFO L276 IsEmpty]: Start isEmpty. Operand 176 states and 193 transitions. [2024-09-12 19:36:34,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2024-09-12 19:36:34,913 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:36:34,914 INFO L216 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:36:34,915 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-09-12 19:36:34,915 INFO L399 AbstractCegarLoop]: === Iteration 10 === Targeting mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 42 more)] === [2024-09-12 19:36:34,916 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:36:34,916 INFO L85 PathProgramCache]: Analyzing trace with hash 2136997017, now seen corresponding path program 1 times [2024-09-12 19:36:34,916 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:36:34,916 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [452793511] [2024-09-12 19:36:34,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:36:34,916 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:36:34,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 19:36:34,932 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1338663287] [2024-09-12 19:36:34,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:36:34,932 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:36:34,932 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:36:34,936 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 19:36:34,940 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-09-12 19:36:34,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:36:34,989 INFO L262 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-09-12 19:36:34,990 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:36:35,063 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-09-12 19:36:35,063 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 19:36:35,064 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:36:35,064 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [452793511] [2024-09-12 19:36:35,064 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 19:36:35,064 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1338663287] [2024-09-12 19:36:35,064 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1338663287] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 19:36:35,064 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 19:36:35,064 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-09-12 19:36:35,064 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [256213566] [2024-09-12 19:36:35,064 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:36:35,065 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-09-12 19:36:35,065 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:36:35,065 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-09-12 19:36:35,065 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-12 19:36:35,065 INFO L87 Difference]: Start difference. First operand 176 states and 193 transitions. Second operand has 3 states, 2 states have (on average 19.0) internal successors, (38), 3 states have internal predecessors, (38), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-09-12 19:36:35,141 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:36:35,141 INFO L93 Difference]: Finished difference Result 176 states and 193 transitions. [2024-09-12 19:36:35,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-12 19:36:35,142 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 19.0) internal successors, (38), 3 states have internal predecessors, (38), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 46 [2024-09-12 19:36:35,143 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:36:35,144 INFO L225 Difference]: With dead ends: 176 [2024-09-12 19:36:35,144 INFO L226 Difference]: Without dead ends: 173 [2024-09-12 19:36:35,144 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 43 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-12 19:36:35,144 INFO L434 NwaCegarLoop]: 68 mSDtfsCounter, 40 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 83 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 19:36:35,145 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 83 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 19:36:35,145 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 173 states. [2024-09-12 19:36:35,157 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 173 to 173. [2024-09-12 19:36:35,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 173 states, 125 states have (on average 1.408) internal successors, (176), 162 states have internal predecessors, (176), 7 states have call successors, (7), 5 states have call predecessors, (7), 4 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-09-12 19:36:35,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 173 states to 173 states and 188 transitions. [2024-09-12 19:36:35,159 INFO L78 Accepts]: Start accepts. Automaton has 173 states and 188 transitions. Word has length 46 [2024-09-12 19:36:35,159 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:36:35,159 INFO L474 AbstractCegarLoop]: Abstraction has 173 states and 188 transitions. [2024-09-12 19:36:35,159 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 19.0) internal successors, (38), 3 states have internal predecessors, (38), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-09-12 19:36:35,160 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:36:35,160 INFO L276 IsEmpty]: Start isEmpty. Operand 173 states and 188 transitions. [2024-09-12 19:36:35,160 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2024-09-12 19:36:35,160 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:36:35,161 INFO L216 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:36:35,178 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-09-12 19:36:35,361 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,5 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:36:35,361 INFO L399 AbstractCegarLoop]: === Iteration 11 === Targeting mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 42 more)] === [2024-09-12 19:36:35,362 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:36:35,362 INFO L85 PathProgramCache]: Analyzing trace with hash 1822398145, now seen corresponding path program 1 times [2024-09-12 19:36:35,362 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:36:35,362 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [372000942] [2024-09-12 19:36:35,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:36:35,362 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:36:35,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 19:36:35,382 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1213497962] [2024-09-12 19:36:35,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:36:35,382 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:36:35,382 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:36:35,384 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 19:36:35,385 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-09-12 19:36:35,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:36:35,427 INFO L262 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-09-12 19:36:35,428 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:36:35,554 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 19:36:35,554 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:36:35,649 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 19:36:35,649 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:36:35,650 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [372000942] [2024-09-12 19:36:35,650 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 19:36:35,650 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1213497962] [2024-09-12 19:36:35,650 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1213497962] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 19:36:35,650 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-09-12 19:36:35,650 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2024-09-12 19:36:35,651 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [973133679] [2024-09-12 19:36:35,651 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-09-12 19:36:35,651 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-09-12 19:36:35,651 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:36:35,652 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-09-12 19:36:35,652 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-09-12 19:36:35,652 INFO L87 Difference]: Start difference. First operand 173 states and 188 transitions. Second operand has 8 states, 7 states have (on average 10.285714285714286) internal successors, (72), 8 states have internal predecessors, (72), 3 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-09-12 19:36:36,106 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:36:36,107 INFO L93 Difference]: Finished difference Result 190 states and 207 transitions. [2024-09-12 19:36:36,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-09-12 19:36:36,107 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 10.285714285714286) internal successors, (72), 8 states have internal predecessors, (72), 3 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 47 [2024-09-12 19:36:36,108 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:36:36,109 INFO L225 Difference]: With dead ends: 190 [2024-09-12 19:36:36,109 INFO L226 Difference]: Without dead ends: 186 [2024-09-12 19:36:36,110 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 87 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2024-09-12 19:36:36,111 INFO L434 NwaCegarLoop]: 51 mSDtfsCounter, 176 mSDsluCounter, 133 mSDsCounter, 0 mSdLazyCounter, 455 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 177 SdHoareTripleChecker+Valid, 184 SdHoareTripleChecker+Invalid, 464 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 455 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-09-12 19:36:36,112 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [177 Valid, 184 Invalid, 464 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 455 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-09-12 19:36:36,112 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 186 states. [2024-09-12 19:36:36,135 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 186 to 179. [2024-09-12 19:36:36,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 179 states, 132 states have (on average 1.3636363636363635) internal successors, (180), 168 states have internal predecessors, (180), 7 states have call successors, (7), 5 states have call predecessors, (7), 4 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-09-12 19:36:36,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 179 states to 179 states and 192 transitions. [2024-09-12 19:36:36,137 INFO L78 Accepts]: Start accepts. Automaton has 179 states and 192 transitions. Word has length 47 [2024-09-12 19:36:36,138 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:36:36,138 INFO L474 AbstractCegarLoop]: Abstraction has 179 states and 192 transitions. [2024-09-12 19:36:36,138 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 10.285714285714286) internal successors, (72), 8 states have internal predecessors, (72), 3 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-09-12 19:36:36,138 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:36:36,139 INFO L276 IsEmpty]: Start isEmpty. Operand 179 states and 192 transitions. [2024-09-12 19:36:36,140 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2024-09-12 19:36:36,140 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:36:36,140 INFO L216 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:36:36,157 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-09-12 19:36:36,344 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2024-09-12 19:36:36,345 INFO L399 AbstractCegarLoop]: === Iteration 12 === Targeting mainErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 42 more)] === [2024-09-12 19:36:36,345 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:36:36,346 INFO L85 PathProgramCache]: Analyzing trace with hash 116768929, now seen corresponding path program 1 times [2024-09-12 19:36:36,346 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:36:36,346 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [783726865] [2024-09-12 19:36:36,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:36:36,346 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:36:36,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 19:36:36,372 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1591853672] [2024-09-12 19:36:36,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:36:36,372 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:36:36,372 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:36:36,374 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 19:36:36,375 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-09-12 19:36:36,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:36:36,424 INFO L262 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-09-12 19:36:36,425 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:36:36,495 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 19:36:36,495 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 19:36:36,495 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:36:36,495 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [783726865] [2024-09-12 19:36:36,495 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 19:36:36,495 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1591853672] [2024-09-12 19:36:36,496 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1591853672] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 19:36:36,496 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 19:36:36,496 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-09-12 19:36:36,496 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1795649160] [2024-09-12 19:36:36,496 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:36:36,496 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-12 19:36:36,496 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:36:36,497 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-12 19:36:36,497 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-09-12 19:36:36,497 INFO L87 Difference]: Start difference. First operand 179 states and 192 transitions. Second operand has 5 states, 4 states have (on average 11.75) internal successors, (47), 5 states have internal predecessors, (47), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-09-12 19:36:36,683 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:36:36,684 INFO L93 Difference]: Finished difference Result 179 states and 192 transitions. [2024-09-12 19:36:36,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-12 19:36:36,684 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 11.75) internal successors, (47), 5 states have internal predecessors, (47), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 54 [2024-09-12 19:36:36,684 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:36:36,686 INFO L225 Difference]: With dead ends: 179 [2024-09-12 19:36:36,686 INFO L226 Difference]: Without dead ends: 168 [2024-09-12 19:36:36,686 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-09-12 19:36:36,687 INFO L434 NwaCegarLoop]: 28 mSDtfsCounter, 57 mSDsluCounter, 31 mSDsCounter, 0 mSdLazyCounter, 126 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 59 SdHoareTripleChecker+Invalid, 137 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 126 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 19:36:36,687 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 59 Invalid, 137 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 126 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 19:36:36,688 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 168 states. [2024-09-12 19:36:36,714 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 168 to 168. [2024-09-12 19:36:36,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 168 states, 132 states have (on average 1.25) internal successors, (165), 157 states have internal predecessors, (165), 7 states have call successors, (7), 5 states have call predecessors, (7), 4 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-09-12 19:36:36,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 168 states to 168 states and 177 transitions. [2024-09-12 19:36:36,716 INFO L78 Accepts]: Start accepts. Automaton has 168 states and 177 transitions. Word has length 54 [2024-09-12 19:36:36,716 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:36:36,716 INFO L474 AbstractCegarLoop]: Abstraction has 168 states and 177 transitions. [2024-09-12 19:36:36,716 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 11.75) internal successors, (47), 5 states have internal predecessors, (47), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-09-12 19:36:36,716 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:36:36,716 INFO L276 IsEmpty]: Start isEmpty. Operand 168 states and 177 transitions. [2024-09-12 19:36:36,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2024-09-12 19:36:36,717 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:36:36,717 INFO L216 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:36:36,734 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-09-12 19:36:36,921 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2024-09-12 19:36:36,922 INFO L399 AbstractCegarLoop]: === Iteration 13 === Targeting mainErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 42 more)] === [2024-09-12 19:36:36,922 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:36:36,922 INFO L85 PathProgramCache]: Analyzing trace with hash -675130423, now seen corresponding path program 1 times [2024-09-12 19:36:36,923 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:36:36,923 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1950971503] [2024-09-12 19:36:36,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:36:36,923 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:36:36,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 19:36:36,935 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1477574747] [2024-09-12 19:36:36,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:36:36,935 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:36:36,935 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:36:36,937 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 19:36:36,938 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-09-12 19:36:36,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:36:36,981 INFO L262 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-09-12 19:36:36,982 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:36:37,118 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 19:36:37,119 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:36:37,239 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 19:36:37,239 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:36:37,239 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1950971503] [2024-09-12 19:36:37,239 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 19:36:37,239 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1477574747] [2024-09-12 19:36:37,240 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1477574747] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 19:36:37,240 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-09-12 19:36:37,240 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2024-09-12 19:36:37,240 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [966444652] [2024-09-12 19:36:37,240 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-09-12 19:36:37,241 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-09-12 19:36:37,241 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:36:37,241 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-09-12 19:36:37,241 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2024-09-12 19:36:37,242 INFO L87 Difference]: Start difference. First operand 168 states and 177 transitions. Second operand has 8 states, 7 states have (on average 12.571428571428571) internal successors, (88), 8 states have internal predecessors, (88), 3 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-09-12 19:36:37,684 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:36:37,684 INFO L93 Difference]: Finished difference Result 184 states and 198 transitions. [2024-09-12 19:36:37,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-09-12 19:36:37,684 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 12.571428571428571) internal successors, (88), 8 states have internal predecessors, (88), 3 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 55 [2024-09-12 19:36:37,685 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:36:37,686 INFO L225 Difference]: With dead ends: 184 [2024-09-12 19:36:37,686 INFO L226 Difference]: Without dead ends: 178 [2024-09-12 19:36:37,686 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 103 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2024-09-12 19:36:37,687 INFO L434 NwaCegarLoop]: 33 mSDtfsCounter, 74 mSDsluCounter, 104 mSDsCounter, 0 mSdLazyCounter, 403 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 76 SdHoareTripleChecker+Valid, 137 SdHoareTripleChecker+Invalid, 416 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 403 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-09-12 19:36:37,687 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [76 Valid, 137 Invalid, 416 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 403 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-09-12 19:36:37,688 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 178 states. [2024-09-12 19:36:37,713 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 178 to 171. [2024-09-12 19:36:37,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 171 states, 140 states have (on average 1.207142857142857) internal successors, (169), 160 states have internal predecessors, (169), 7 states have call successors, (7), 5 states have call predecessors, (7), 4 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-09-12 19:36:37,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 171 states to 171 states and 181 transitions. [2024-09-12 19:36:37,714 INFO L78 Accepts]: Start accepts. Automaton has 171 states and 181 transitions. Word has length 55 [2024-09-12 19:36:37,715 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:36:37,715 INFO L474 AbstractCegarLoop]: Abstraction has 171 states and 181 transitions. [2024-09-12 19:36:37,715 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 12.571428571428571) internal successors, (88), 8 states have internal predecessors, (88), 3 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-09-12 19:36:37,715 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:36:37,715 INFO L276 IsEmpty]: Start isEmpty. Operand 171 states and 181 transitions. [2024-09-12 19:36:37,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2024-09-12 19:36:37,716 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:36:37,716 INFO L216 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:36:37,733 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-09-12 19:36:37,920 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,8 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:36:37,921 INFO L399 AbstractCegarLoop]: === Iteration 14 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 42 more)] === [2024-09-12 19:36:37,921 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:36:37,921 INFO L85 PathProgramCache]: Analyzing trace with hash -156087869, now seen corresponding path program 1 times [2024-09-12 19:36:37,921 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:36:37,921 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [227520441] [2024-09-12 19:36:37,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:36:37,922 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:36:37,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 19:36:37,943 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [425525868] [2024-09-12 19:36:37,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:36:37,943 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:36:37,943 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:36:37,945 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 19:36:37,946 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-09-12 19:36:37,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:36:37,990 INFO L262 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-09-12 19:36:37,992 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:36:38,192 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 2 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 19:36:38,193 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:36:38,349 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2024-09-12 19:36:38,349 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:36:38,350 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [227520441] [2024-09-12 19:36:38,350 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 19:36:38,350 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [425525868] [2024-09-12 19:36:38,350 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [425525868] provided 1 perfect and 1 imperfect interpolant sequences [2024-09-12 19:36:38,350 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-09-12 19:36:38,350 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [7] total 9 [2024-09-12 19:36:38,350 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1304236441] [2024-09-12 19:36:38,351 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:36:38,351 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-09-12 19:36:38,351 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:36:38,351 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-09-12 19:36:38,352 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-09-12 19:36:38,352 INFO L87 Difference]: Start difference. First operand 171 states and 181 transitions. Second operand has 6 states, 6 states have (on average 6.666666666666667) internal successors, (40), 5 states have internal predecessors, (40), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-09-12 19:36:38,674 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:36:38,674 INFO L93 Difference]: Finished difference Result 171 states and 181 transitions. [2024-09-12 19:36:38,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-09-12 19:36:38,676 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.666666666666667) internal successors, (40), 5 states have internal predecessors, (40), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 67 [2024-09-12 19:36:38,677 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:36:38,678 INFO L225 Difference]: With dead ends: 171 [2024-09-12 19:36:38,678 INFO L226 Difference]: Without dead ends: 150 [2024-09-12 19:36:38,678 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 135 GetRequests, 124 SyntacticMatches, 3 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2024-09-12 19:36:38,679 INFO L434 NwaCegarLoop]: 20 mSDtfsCounter, 47 mSDsluCounter, 66 mSDsCounter, 0 mSdLazyCounter, 271 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 86 SdHoareTripleChecker+Invalid, 274 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 271 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-09-12 19:36:38,679 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 86 Invalid, 274 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 271 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-09-12 19:36:38,680 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150 states. [2024-09-12 19:36:38,717 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150 to 150. [2024-09-12 19:36:38,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 150 states, 121 states have (on average 1.2148760330578512) internal successors, (147), 139 states have internal predecessors, (147), 6 states have call successors, (6), 5 states have call predecessors, (6), 4 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-09-12 19:36:38,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 158 transitions. [2024-09-12 19:36:38,719 INFO L78 Accepts]: Start accepts. Automaton has 150 states and 158 transitions. Word has length 67 [2024-09-12 19:36:38,719 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:36:38,719 INFO L474 AbstractCegarLoop]: Abstraction has 150 states and 158 transitions. [2024-09-12 19:36:38,719 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.666666666666667) internal successors, (40), 5 states have internal predecessors, (40), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-09-12 19:36:38,719 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:36:38,720 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 158 transitions. [2024-09-12 19:36:38,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-09-12 19:36:38,720 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:36:38,720 INFO L216 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:36:38,738 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2024-09-12 19:36:38,921 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,9 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:36:38,921 INFO L399 AbstractCegarLoop]: === Iteration 15 === Targeting mainErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 42 more)] === [2024-09-12 19:36:38,922 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:36:38,922 INFO L85 PathProgramCache]: Analyzing trace with hash 1440782285, now seen corresponding path program 1 times [2024-09-12 19:36:38,922 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:36:38,922 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [466745415] [2024-09-12 19:36:38,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:36:38,922 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:36:38,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:36:39,010 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:36:39,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:36:39,013 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 19:36:39,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:36:39,015 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-09-12 19:36:39,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:36:39,023 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-09-12 19:36:39,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:36:39,026 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-09-12 19:36:39,028 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:36:39,028 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [466745415] [2024-09-12 19:36:39,028 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [466745415] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:36:39,028 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [927232396] [2024-09-12 19:36:39,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:36:39,028 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:36:39,029 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:36:39,030 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 19:36:39,032 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-09-12 19:36:39,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:36:39,074 INFO L262 TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-09-12 19:36:39,075 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:36:39,135 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-09-12 19:36:39,135 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 19:36:39,136 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [927232396] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 19:36:39,136 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-09-12 19:36:39,136 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2024-09-12 19:36:39,136 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1686367483] [2024-09-12 19:36:39,136 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:36:39,136 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-12 19:36:39,137 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:36:39,137 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-12 19:36:39,137 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-09-12 19:36:39,137 INFO L87 Difference]: Start difference. First operand 150 states and 158 transitions. Second operand has 4 states, 3 states have (on average 19.333333333333332) internal successors, (58), 4 states have internal predecessors, (58), 3 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-09-12 19:36:39,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:36:39,192 INFO L93 Difference]: Finished difference Result 150 states and 158 transitions. [2024-09-12 19:36:39,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-12 19:36:39,192 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 19.333333333333332) internal successors, (58), 4 states have internal predecessors, (58), 3 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 70 [2024-09-12 19:36:39,192 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:36:39,193 INFO L225 Difference]: With dead ends: 150 [2024-09-12 19:36:39,193 INFO L226 Difference]: Without dead ends: 149 [2024-09-12 19:36:39,194 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 77 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-09-12 19:36:39,194 INFO L434 NwaCegarLoop]: 91 mSDtfsCounter, 13 mSDsluCounter, 81 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 172 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-09-12 19:36:39,195 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 172 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-09-12 19:36:39,195 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 149 states. [2024-09-12 19:36:39,229 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 149 to 149. [2024-09-12 19:36:39,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 149 states, 121 states have (on average 1.1983471074380165) internal successors, (145), 138 states have internal predecessors, (145), 6 states have call successors, (6), 5 states have call predecessors, (6), 4 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-09-12 19:36:39,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 149 states to 149 states and 156 transitions. [2024-09-12 19:36:39,230 INFO L78 Accepts]: Start accepts. Automaton has 149 states and 156 transitions. Word has length 70 [2024-09-12 19:36:39,231 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:36:39,231 INFO L474 AbstractCegarLoop]: Abstraction has 149 states and 156 transitions. [2024-09-12 19:36:39,231 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 19.333333333333332) internal successors, (58), 4 states have internal predecessors, (58), 3 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-09-12 19:36:39,231 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:36:39,232 INFO L276 IsEmpty]: Start isEmpty. Operand 149 states and 156 transitions. [2024-09-12 19:36:39,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2024-09-12 19:36:39,232 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:36:39,232 INFO L216 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:36:39,250 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2024-09-12 19:36:39,435 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2024-09-12 19:36:39,436 INFO L399 AbstractCegarLoop]: === Iteration 16 === Targeting mainErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 42 more)] === [2024-09-12 19:36:39,436 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:36:39,436 INFO L85 PathProgramCache]: Analyzing trace with hash 1714577975, now seen corresponding path program 1 times [2024-09-12 19:36:39,436 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:36:39,436 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [628423471] [2024-09-12 19:36:39,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:36:39,437 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:36:39,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:36:39,505 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:36:39,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:36:39,507 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 19:36:39,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:36:39,509 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-09-12 19:36:39,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:36:39,513 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-09-12 19:36:39,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:36:39,520 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 23 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-09-12 19:36:39,520 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:36:39,520 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [628423471] [2024-09-12 19:36:39,520 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [628423471] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:36:39,521 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [526876596] [2024-09-12 19:36:39,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:36:39,521 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:36:39,521 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:36:39,523 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 19:36:39,524 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-09-12 19:36:39,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:36:39,566 INFO L262 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-09-12 19:36:39,567 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:36:39,625 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 23 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-09-12 19:36:39,625 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:36:39,707 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 23 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-09-12 19:36:39,708 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [526876596] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 19:36:39,708 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 19:36:39,708 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6 [2024-09-12 19:36:39,708 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1645152135] [2024-09-12 19:36:39,708 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 19:36:39,709 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-09-12 19:36:39,710 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:36:39,711 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-09-12 19:36:39,711 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-09-12 19:36:39,711 INFO L87 Difference]: Start difference. First operand 149 states and 156 transitions. Second operand has 7 states, 6 states have (on average 22.166666666666668) internal successors, (133), 7 states have internal predecessors, (133), 6 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (7), 6 states have call predecessors, (7), 6 states have call successors, (7) [2024-09-12 19:36:39,799 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:36:39,800 INFO L93 Difference]: Finished difference Result 210 states and 217 transitions. [2024-09-12 19:36:39,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-12 19:36:39,800 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 22.166666666666668) internal successors, (133), 7 states have internal predecessors, (133), 6 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (7), 6 states have call predecessors, (7), 6 states have call successors, (7) Word has length 71 [2024-09-12 19:36:39,801 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:36:39,802 INFO L225 Difference]: With dead ends: 210 [2024-09-12 19:36:39,802 INFO L226 Difference]: Without dead ends: 209 [2024-09-12 19:36:39,802 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 152 GetRequests, 147 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-09-12 19:36:39,803 INFO L434 NwaCegarLoop]: 71 mSDtfsCounter, 25 mSDsluCounter, 192 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 263 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-09-12 19:36:39,803 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 263 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-09-12 19:36:39,804 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 209 states. [2024-09-12 19:36:39,858 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 209 to 190. [2024-09-12 19:36:39,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 190 states, 160 states have (on average 1.24375) internal successors, (199), 177 states have internal predecessors, (199), 8 states have call successors, (8), 5 states have call predecessors, (8), 4 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-09-12 19:36:39,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 190 states to 190 states and 214 transitions. [2024-09-12 19:36:39,860 INFO L78 Accepts]: Start accepts. Automaton has 190 states and 214 transitions. Word has length 71 [2024-09-12 19:36:39,860 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:36:39,860 INFO L474 AbstractCegarLoop]: Abstraction has 190 states and 214 transitions. [2024-09-12 19:36:39,861 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 22.166666666666668) internal successors, (133), 7 states have internal predecessors, (133), 6 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (7), 6 states have call predecessors, (7), 6 states have call successors, (7) [2024-09-12 19:36:39,861 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:36:39,861 INFO L276 IsEmpty]: Start isEmpty. Operand 190 states and 214 transitions. [2024-09-12 19:36:39,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-09-12 19:36:39,862 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:36:39,862 INFO L216 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:36:39,879 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2024-09-12 19:36:40,066 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2024-09-12 19:36:40,067 INFO L399 AbstractCegarLoop]: === Iteration 17 === Targeting mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 42 more)] === [2024-09-12 19:36:40,067 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:36:40,067 INFO L85 PathProgramCache]: Analyzing trace with hash 11061825, now seen corresponding path program 1 times [2024-09-12 19:36:40,067 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:36:40,067 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1880032079] [2024-09-12 19:36:40,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:36:40,067 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:36:40,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:36:40,129 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:36:40,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:36:40,132 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 19:36:40,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:36:40,134 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-09-12 19:36:40,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:36:40,135 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-09-12 19:36:40,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:36:40,139 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-09-12 19:36:40,139 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:36:40,139 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1880032079] [2024-09-12 19:36:40,139 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1880032079] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 19:36:40,139 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 19:36:40,139 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-12 19:36:40,139 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1512792872] [2024-09-12 19:36:40,140 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:36:40,140 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-12 19:36:40,140 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:36:40,141 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-12 19:36:40,141 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-09-12 19:36:40,141 INFO L87 Difference]: Start difference. First operand 190 states and 214 transitions. Second operand has 4 states, 3 states have (on average 19.333333333333332) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-09-12 19:36:40,260 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:36:40,260 INFO L93 Difference]: Finished difference Result 190 states and 214 transitions. [2024-09-12 19:36:40,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-12 19:36:40,260 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 19.333333333333332) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 81 [2024-09-12 19:36:40,261 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:36:40,262 INFO L225 Difference]: With dead ends: 190 [2024-09-12 19:36:40,262 INFO L226 Difference]: Without dead ends: 185 [2024-09-12 19:36:40,262 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-09-12 19:36:40,263 INFO L434 NwaCegarLoop]: 26 mSDtfsCounter, 60 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 38 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 19:36:40,263 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 38 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 19:36:40,264 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 185 states. [2024-09-12 19:36:40,307 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 185 to 185. [2024-09-12 19:36:40,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 185 states, 160 states have (on average 1.18125) internal successors, (189), 172 states have internal predecessors, (189), 8 states have call successors, (8), 5 states have call predecessors, (8), 4 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-09-12 19:36:40,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 185 states to 185 states and 204 transitions. [2024-09-12 19:36:40,309 INFO L78 Accepts]: Start accepts. Automaton has 185 states and 204 transitions. Word has length 81 [2024-09-12 19:36:40,309 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:36:40,309 INFO L474 AbstractCegarLoop]: Abstraction has 185 states and 204 transitions. [2024-09-12 19:36:40,309 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 19.333333333333332) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-09-12 19:36:40,310 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:36:40,310 INFO L276 IsEmpty]: Start isEmpty. Operand 185 states and 204 transitions. [2024-09-12 19:36:40,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2024-09-12 19:36:40,311 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:36:40,311 INFO L216 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:36:40,311 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-09-12 19:36:40,311 INFO L399 AbstractCegarLoop]: === Iteration 18 === Targeting mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 42 more)] === [2024-09-12 19:36:40,311 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:36:40,312 INFO L85 PathProgramCache]: Analyzing trace with hash 342916637, now seen corresponding path program 1 times [2024-09-12 19:36:40,312 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:36:40,312 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [823773838] [2024-09-12 19:36:40,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:36:40,312 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:36:40,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:36:40,368 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:36:40,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:36:40,371 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 19:36:40,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:36:40,373 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-09-12 19:36:40,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:36:40,375 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-09-12 19:36:40,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:36:40,378 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2024-09-12 19:36:40,378 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:36:40,378 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [823773838] [2024-09-12 19:36:40,378 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [823773838] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 19:36:40,378 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 19:36:40,378 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-12 19:36:40,378 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [279076525] [2024-09-12 19:36:40,379 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:36:40,379 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-12 19:36:40,379 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:36:40,379 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-12 19:36:40,379 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-09-12 19:36:40,380 INFO L87 Difference]: Start difference. First operand 185 states and 204 transitions. Second operand has 4 states, 3 states have (on average 19.333333333333332) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-09-12 19:36:40,492 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:36:40,493 INFO L93 Difference]: Finished difference Result 185 states and 204 transitions. [2024-09-12 19:36:40,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-12 19:36:40,493 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 19.333333333333332) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 82 [2024-09-12 19:36:40,494 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:36:40,495 INFO L225 Difference]: With dead ends: 185 [2024-09-12 19:36:40,495 INFO L226 Difference]: Without dead ends: 184 [2024-09-12 19:36:40,495 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-09-12 19:36:40,496 INFO L434 NwaCegarLoop]: 26 mSDtfsCounter, 30 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 50 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 19:36:40,496 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 50 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 19:36:40,496 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 184 states. [2024-09-12 19:36:40,542 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 184 to 184. [2024-09-12 19:36:40,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 184 states, 160 states have (on average 1.1625) internal successors, (186), 171 states have internal predecessors, (186), 8 states have call successors, (8), 5 states have call predecessors, (8), 4 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-09-12 19:36:40,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 184 states to 184 states and 201 transitions. [2024-09-12 19:36:40,544 INFO L78 Accepts]: Start accepts. Automaton has 184 states and 201 transitions. Word has length 82 [2024-09-12 19:36:40,544 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:36:40,544 INFO L474 AbstractCegarLoop]: Abstraction has 184 states and 201 transitions. [2024-09-12 19:36:40,545 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 19.333333333333332) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-09-12 19:36:40,545 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:36:40,545 INFO L276 IsEmpty]: Start isEmpty. Operand 184 states and 201 transitions. [2024-09-12 19:36:40,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-09-12 19:36:40,546 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:36:40,546 INFO L216 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:36:40,546 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-09-12 19:36:40,546 INFO L399 AbstractCegarLoop]: === Iteration 19 === Targeting mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 42 more)] === [2024-09-12 19:36:40,547 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:36:40,547 INFO L85 PathProgramCache]: Analyzing trace with hash -1169591585, now seen corresponding path program 1 times [2024-09-12 19:36:40,547 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:36:40,547 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1703851318] [2024-09-12 19:36:40,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:36:40,547 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:36:40,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:36:40,625 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:36:40,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:36:40,628 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 19:36:40,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:36:40,631 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-09-12 19:36:40,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:36:40,634 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-09-12 19:36:40,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:36:40,637 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 37 proven. 4 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-09-12 19:36:40,638 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:36:40,638 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1703851318] [2024-09-12 19:36:40,638 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1703851318] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:36:40,638 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [165154978] [2024-09-12 19:36:40,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:36:40,638 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:36:40,639 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:36:40,640 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 19:36:40,642 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-09-12 19:36:40,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:36:40,687 INFO L262 TraceCheckSpWp]: Trace formula consists of 138 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-09-12 19:36:40,689 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:36:40,736 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 37 proven. 4 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-09-12 19:36:40,736 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:36:40,846 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [165154978] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:36:40,847 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-09-12 19:36:40,847 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 4 [2024-09-12 19:36:40,847 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1467373736] [2024-09-12 19:36:40,847 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-09-12 19:36:40,847 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-12 19:36:40,847 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:36:40,848 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-12 19:36:40,848 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2024-09-12 19:36:40,848 INFO L87 Difference]: Start difference. First operand 184 states and 201 transitions. Second operand has 5 states, 4 states have (on average 17.75) internal successors, (71), 5 states have internal predecessors, (71), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-09-12 19:36:40,996 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:36:40,997 INFO L93 Difference]: Finished difference Result 184 states and 201 transitions. [2024-09-12 19:36:40,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-12 19:36:40,997 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 17.75) internal successors, (71), 5 states have internal predecessors, (71), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 84 [2024-09-12 19:36:40,998 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:36:40,999 INFO L225 Difference]: With dead ends: 184 [2024-09-12 19:36:40,999 INFO L226 Difference]: Without dead ends: 173 [2024-09-12 19:36:41,000 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 114 GetRequests, 107 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2024-09-12 19:36:41,000 INFO L434 NwaCegarLoop]: 24 mSDtfsCounter, 90 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 90 SdHoareTripleChecker+Valid, 49 SdHoareTripleChecker+Invalid, 78 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 19:36:41,001 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [90 Valid, 49 Invalid, 78 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 19:36:41,002 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 173 states. [2024-09-12 19:36:41,053 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 173 to 173. [2024-09-12 19:36:41,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 173 states, 153 states have (on average 1.1176470588235294) internal successors, (171), 160 states have internal predecessors, (171), 8 states have call successors, (8), 5 states have call predecessors, (8), 4 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-09-12 19:36:41,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 173 states to 173 states and 186 transitions. [2024-09-12 19:36:41,055 INFO L78 Accepts]: Start accepts. Automaton has 173 states and 186 transitions. Word has length 84 [2024-09-12 19:36:41,055 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:36:41,055 INFO L474 AbstractCegarLoop]: Abstraction has 173 states and 186 transitions. [2024-09-12 19:36:41,055 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 17.75) internal successors, (71), 5 states have internal predecessors, (71), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-09-12 19:36:41,056 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:36:41,056 INFO L276 IsEmpty]: Start isEmpty. Operand 173 states and 186 transitions. [2024-09-12 19:36:41,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2024-09-12 19:36:41,056 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:36:41,056 INFO L216 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:36:41,073 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2024-09-12 19:36:41,257 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,12 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:36:41,257 INFO L399 AbstractCegarLoop]: === Iteration 20 === Targeting mainErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 42 more)] === [2024-09-12 19:36:41,257 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:36:41,258 INFO L85 PathProgramCache]: Analyzing trace with hash -1897600699, now seen corresponding path program 1 times [2024-09-12 19:36:41,258 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:36:41,258 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1958240844] [2024-09-12 19:36:41,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:36:41,258 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:36:41,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 19:36:41,274 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [173762514] [2024-09-12 19:36:41,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:36:41,274 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:36:41,274 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:36:41,276 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 19:36:41,283 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-09-12 19:36:41,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:36:41,329 INFO L262 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-09-12 19:36:41,331 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:36:41,417 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 45 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-09-12 19:36:41,417 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 19:36:41,418 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:36:41,418 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1958240844] [2024-09-12 19:36:41,418 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 19:36:41,418 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [173762514] [2024-09-12 19:36:41,418 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [173762514] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 19:36:41,418 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 19:36:41,418 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-09-12 19:36:41,419 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [434476439] [2024-09-12 19:36:41,419 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:36:41,419 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-12 19:36:41,419 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:36:41,420 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-12 19:36:41,420 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-09-12 19:36:41,420 INFO L87 Difference]: Start difference. First operand 173 states and 186 transitions. Second operand has 5 states, 4 states have (on average 18.25) internal successors, (73), 5 states have internal predecessors, (73), 3 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-09-12 19:36:41,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:36:41,570 INFO L93 Difference]: Finished difference Result 173 states and 186 transitions. [2024-09-12 19:36:41,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-12 19:36:41,571 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 18.25) internal successors, (73), 5 states have internal predecessors, (73), 3 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 85 [2024-09-12 19:36:41,571 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:36:41,572 INFO L225 Difference]: With dead ends: 173 [2024-09-12 19:36:41,572 INFO L226 Difference]: Without dead ends: 164 [2024-09-12 19:36:41,572 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 81 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-09-12 19:36:41,573 INFO L434 NwaCegarLoop]: 42 mSDtfsCounter, 34 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 125 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 82 SdHoareTripleChecker+Invalid, 126 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 125 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 19:36:41,573 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 82 Invalid, 126 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 125 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 19:36:41,573 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 164 states. [2024-09-12 19:36:41,617 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 164 to 164. [2024-09-12 19:36:41,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 164 states, 146 states have (on average 1.082191780821918) internal successors, (158), 151 states have internal predecessors, (158), 8 states have call successors, (8), 5 states have call predecessors, (8), 4 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-09-12 19:36:41,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 164 states to 164 states and 173 transitions. [2024-09-12 19:36:41,619 INFO L78 Accepts]: Start accepts. Automaton has 164 states and 173 transitions. Word has length 85 [2024-09-12 19:36:41,619 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:36:41,619 INFO L474 AbstractCegarLoop]: Abstraction has 164 states and 173 transitions. [2024-09-12 19:36:41,619 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 18.25) internal successors, (73), 5 states have internal predecessors, (73), 3 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-09-12 19:36:41,620 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:36:41,620 INFO L276 IsEmpty]: Start isEmpty. Operand 164 states and 173 transitions. [2024-09-12 19:36:41,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2024-09-12 19:36:41,620 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:36:41,621 INFO L216 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:36:41,634 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2024-09-12 19:36:41,824 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable19 [2024-09-12 19:36:41,825 INFO L399 AbstractCegarLoop]: === Iteration 21 === Targeting mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 42 more)] === [2024-09-12 19:36:41,825 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:36:41,825 INFO L85 PathProgramCache]: Analyzing trace with hash 1303920545, now seen corresponding path program 1 times [2024-09-12 19:36:41,825 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:36:41,825 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1466123957] [2024-09-12 19:36:41,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:36:41,825 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:36:41,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 19:36:41,838 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [902236966] [2024-09-12 19:36:41,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:36:41,839 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:36:41,839 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:36:41,840 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 19:36:41,842 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-09-12 19:36:41,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:36:41,886 INFO L262 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-09-12 19:36:41,887 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:36:41,963 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 0 proven. 47 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-09-12 19:36:41,964 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:36:42,050 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:36:42,050 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1466123957] [2024-09-12 19:36:42,050 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 19:36:42,050 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [902236966] [2024-09-12 19:36:42,051 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [902236966] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:36:42,051 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 19:36:42,051 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4] total 4 [2024-09-12 19:36:42,051 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1508895126] [2024-09-12 19:36:42,051 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 19:36:42,051 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-12 19:36:42,051 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:36:42,052 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-12 19:36:42,052 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-09-12 19:36:42,052 INFO L87 Difference]: Start difference. First operand 164 states and 173 transitions. Second operand has 5 states, 4 states have (on average 18.5) internal successors, (74), 5 states have internal predecessors, (74), 3 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-09-12 19:36:42,192 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:36:42,192 INFO L93 Difference]: Finished difference Result 165 states and 173 transitions. [2024-09-12 19:36:42,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-12 19:36:42,192 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 18.5) internal successors, (74), 5 states have internal predecessors, (74), 3 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 86 [2024-09-12 19:36:42,193 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:36:42,194 INFO L225 Difference]: With dead ends: 165 [2024-09-12 19:36:42,194 INFO L226 Difference]: Without dead ends: 164 [2024-09-12 19:36:42,194 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 99 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-09-12 19:36:42,195 INFO L434 NwaCegarLoop]: 27 mSDtfsCounter, 15 mSDsluCounter, 47 mSDsCounter, 0 mSdLazyCounter, 103 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 74 SdHoareTripleChecker+Invalid, 103 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 103 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 19:36:42,195 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 74 Invalid, 103 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 103 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 19:36:42,195 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 164 states. [2024-09-12 19:36:42,249 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 164 to 164. [2024-09-12 19:36:42,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 164 states, 146 states have (on average 1.0753424657534247) internal successors, (157), 151 states have internal predecessors, (157), 8 states have call successors, (8), 5 states have call predecessors, (8), 4 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-09-12 19:36:42,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 164 states to 164 states and 172 transitions. [2024-09-12 19:36:42,251 INFO L78 Accepts]: Start accepts. Automaton has 164 states and 172 transitions. Word has length 86 [2024-09-12 19:36:42,251 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:36:42,252 INFO L474 AbstractCegarLoop]: Abstraction has 164 states and 172 transitions. [2024-09-12 19:36:42,252 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 18.5) internal successors, (74), 5 states have internal predecessors, (74), 3 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-09-12 19:36:42,252 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:36:42,252 INFO L276 IsEmpty]: Start isEmpty. Operand 164 states and 172 transitions. [2024-09-12 19:36:42,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-09-12 19:36:42,253 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:36:42,253 INFO L216 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:36:42,270 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2024-09-12 19:36:42,454 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,14 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:36:42,455 INFO L399 AbstractCegarLoop]: === Iteration 22 === Targeting mainErr23ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 42 more)] === [2024-09-12 19:36:42,455 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:36:42,455 INFO L85 PathProgramCache]: Analyzing trace with hash -1838637099, now seen corresponding path program 1 times [2024-09-12 19:36:42,455 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:36:42,455 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [684702073] [2024-09-12 19:36:42,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:36:42,456 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:36:42,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:36:42,657 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:36:42,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:36:42,660 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 19:36:42,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:36:42,678 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-09-12 19:36:42,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:36:42,682 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-09-12 19:36:42,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:36:42,686 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-09-12 19:36:42,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:36:42,691 INFO L134 CoverageAnalysis]: Checked inductivity of 95 backedges. 39 proven. 44 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-09-12 19:36:42,691 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:36:42,691 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [684702073] [2024-09-12 19:36:42,692 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [684702073] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:36:42,692 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1299164519] [2024-09-12 19:36:42,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:36:42,692 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:36:42,692 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:36:42,694 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 19:36:42,696 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-09-12 19:36:42,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:36:42,744 INFO L262 TraceCheckSpWp]: Trace formula consists of 170 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-09-12 19:36:42,746 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:36:43,124 INFO L134 CoverageAnalysis]: Checked inductivity of 95 backedges. 83 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-09-12 19:36:43,124 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 19:36:43,124 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1299164519] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 19:36:43,124 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-09-12 19:36:43,124 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [8] total 11 [2024-09-12 19:36:43,125 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [80506040] [2024-09-12 19:36:43,125 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:36:43,125 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-09-12 19:36:43,125 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:36:43,125 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-09-12 19:36:43,126 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2024-09-12 19:36:43,126 INFO L87 Difference]: Start difference. First operand 164 states and 172 transitions. Second operand has 8 states, 8 states have (on average 11.375) internal successors, (91), 7 states have internal predecessors, (91), 4 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (5), 5 states have call predecessors, (5), 4 states have call successors, (5) [2024-09-12 19:36:43,196 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:36:43,198 INFO L93 Difference]: Finished difference Result 168 states and 175 transitions. [2024-09-12 19:36:43,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-09-12 19:36:43,198 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.375) internal successors, (91), 7 states have internal predecessors, (91), 4 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (5), 5 states have call predecessors, (5), 4 states have call successors, (5) Word has length 108 [2024-09-12 19:36:43,199 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:36:43,199 INFO L225 Difference]: With dead ends: 168 [2024-09-12 19:36:43,199 INFO L226 Difference]: Without dead ends: 0 [2024-09-12 19:36:43,200 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 124 GetRequests, 115 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2024-09-12 19:36:43,200 INFO L434 NwaCegarLoop]: 86 mSDtfsCounter, 0 mSDsluCounter, 266 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 352 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-09-12 19:36:43,200 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 352 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-09-12 19:36:43,200 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-09-12 19:36:43,201 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-09-12 19:36:43,201 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) [2024-09-12 19:36:43,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-09-12 19:36:43,201 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 108 [2024-09-12 19:36:43,202 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:36:43,202 INFO L474 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-09-12 19:36:43,202 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.375) internal successors, (91), 7 states have internal predecessors, (91), 4 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (5), 5 states have call predecessors, (5), 4 states have call successors, (5) [2024-09-12 19:36:43,203 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:36:43,203 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-09-12 19:36:43,203 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-09-12 19:36:43,205 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (44 of 45 remaining) [2024-09-12 19:36:43,206 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (43 of 45 remaining) [2024-09-12 19:36:43,206 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (42 of 45 remaining) [2024-09-12 19:36:43,206 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (41 of 45 remaining) [2024-09-12 19:36:43,206 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (40 of 45 remaining) [2024-09-12 19:36:43,206 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (39 of 45 remaining) [2024-09-12 19:36:43,207 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (38 of 45 remaining) [2024-09-12 19:36:43,207 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (37 of 45 remaining) [2024-09-12 19:36:43,207 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (36 of 45 remaining) [2024-09-12 19:36:43,207 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (35 of 45 remaining) [2024-09-12 19:36:43,207 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr10ASSERT_VIOLATIONINTEGER_OVERFLOW (34 of 45 remaining) [2024-09-12 19:36:43,207 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr11ASSERT_VIOLATIONINTEGER_OVERFLOW (33 of 45 remaining) [2024-09-12 19:36:43,208 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr12ASSERT_VIOLATIONINTEGER_OVERFLOW (32 of 45 remaining) [2024-09-12 19:36:43,208 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr13ASSERT_VIOLATIONINTEGER_OVERFLOW (31 of 45 remaining) [2024-09-12 19:36:43,208 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr14ASSERT_VIOLATIONINTEGER_OVERFLOW (30 of 45 remaining) [2024-09-12 19:36:43,208 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr15ASSERT_VIOLATIONINTEGER_OVERFLOW (29 of 45 remaining) [2024-09-12 19:36:43,208 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr16ASSERT_VIOLATIONINTEGER_OVERFLOW (28 of 45 remaining) [2024-09-12 19:36:43,208 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr17ASSERT_VIOLATIONINTEGER_OVERFLOW (27 of 45 remaining) [2024-09-12 19:36:43,208 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr18ASSERT_VIOLATIONINTEGER_OVERFLOW (26 of 45 remaining) [2024-09-12 19:36:43,209 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr19ASSERT_VIOLATIONINTEGER_OVERFLOW (25 of 45 remaining) [2024-09-12 19:36:43,209 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr20ASSERT_VIOLATIONINTEGER_OVERFLOW (24 of 45 remaining) [2024-09-12 19:36:43,209 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr21ASSERT_VIOLATIONINTEGER_OVERFLOW (23 of 45 remaining) [2024-09-12 19:36:43,209 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr22ASSERT_VIOLATIONINTEGER_OVERFLOW (22 of 45 remaining) [2024-09-12 19:36:43,209 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr23ASSERT_VIOLATIONINTEGER_OVERFLOW (21 of 45 remaining) [2024-09-12 19:36:43,209 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr24ASSERT_VIOLATIONINTEGER_OVERFLOW (20 of 45 remaining) [2024-09-12 19:36:43,210 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr25ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 45 remaining) [2024-09-12 19:36:43,210 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr26ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 45 remaining) [2024-09-12 19:36:43,210 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr27ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 45 remaining) [2024-09-12 19:36:43,210 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr28ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 45 remaining) [2024-09-12 19:36:43,210 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr29ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 45 remaining) [2024-09-12 19:36:43,210 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr30ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 45 remaining) [2024-09-12 19:36:43,210 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr31ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 45 remaining) [2024-09-12 19:36:43,211 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr32ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 45 remaining) [2024-09-12 19:36:43,211 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr33ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 45 remaining) [2024-09-12 19:36:43,211 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr34ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 45 remaining) [2024-09-12 19:36:43,211 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr35ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 45 remaining) [2024-09-12 19:36:43,211 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr36ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 45 remaining) [2024-09-12 19:36:43,211 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr37ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 45 remaining) [2024-09-12 19:36:43,212 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr38ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 45 remaining) [2024-09-12 19:36:43,212 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr39ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 45 remaining) [2024-09-12 19:36:43,212 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr40ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 45 remaining) [2024-09-12 19:36:43,212 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr41ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 45 remaining) [2024-09-12 19:36:43,212 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr42ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 45 remaining) [2024-09-12 19:36:43,212 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr43ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 45 remaining) [2024-09-12 19:36:43,213 INFO L785 garLoopResultBuilder]: Registering result SAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 45 remaining) [2024-09-12 19:36:43,228 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2024-09-12 19:36:43,416 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2024-09-12 19:36:43,419 INFO L408 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:36:43,421 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-09-12 19:36:45,438 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-09-12 19:36:45,460 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.09 07:36:45 BoogieIcfgContainer [2024-09-12 19:36:45,460 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-09-12 19:36:45,461 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-09-12 19:36:45,461 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-09-12 19:36:45,461 INFO L274 PluginConnector]: Witness Printer initialized [2024-09-12 19:36:45,462 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.09 07:36:31" (3/4) ... [2024-09-12 19:36:45,463 INFO L139 WitnessPrinter]: Generating witness for correct program [2024-09-12 19:36:45,466 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2024-09-12 19:36:45,466 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not [2024-09-12 19:36:45,466 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2024-09-12 19:36:45,467 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2024-09-12 19:36:45,473 INFO L896 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2024-09-12 19:36:45,473 INFO L896 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2024-09-12 19:36:45,473 INFO L896 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-09-12 19:36:45,473 INFO L896 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-09-12 19:36:45,553 INFO L149 WitnessManager]: Wrote witness to /storage/repos/certificate-witnesses-artifact/automizer/witness.graphml [2024-09-12 19:36:45,553 INFO L149 WitnessManager]: Wrote witness to /storage/repos/certificate-witnesses-artifact/automizer/witness.yml [2024-09-12 19:36:45,553 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-09-12 19:36:45,554 INFO L158 Benchmark]: Toolchain (without parser) took 15173.50ms. Allocated memory was 58.7MB in the beginning and 182.5MB in the end (delta: 123.7MB). Free memory was 30.6MB in the beginning and 144.8MB in the end (delta: -114.2MB). Peak memory consumption was 9.7MB. Max. memory is 16.1GB. [2024-09-12 19:36:45,554 INFO L158 Benchmark]: CDTParser took 0.24ms. Allocated memory is still 41.9MB. Free memory is still 18.3MB. There was no memory consumed. Max. memory is 16.1GB. [2024-09-12 19:36:45,554 INFO L158 Benchmark]: CACSL2BoogieTranslator took 249.51ms. Allocated memory is still 58.7MB. Free memory was 30.5MB in the beginning and 34.9MB in the end (delta: -4.4MB). Peak memory consumption was 8.7MB. Max. memory is 16.1GB. [2024-09-12 19:36:45,555 INFO L158 Benchmark]: Boogie Procedure Inliner took 17.93ms. Allocated memory is still 58.7MB. Free memory was 34.9MB in the beginning and 33.9MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2024-09-12 19:36:45,555 INFO L158 Benchmark]: Boogie Preprocessor took 33.65ms. Allocated memory is still 58.7MB. Free memory was 33.9MB in the beginning and 32.2MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-09-12 19:36:45,555 INFO L158 Benchmark]: RCFGBuilder took 541.17ms. Allocated memory was 58.7MB in the beginning and 71.3MB in the end (delta: 12.6MB). Free memory was 32.2MB in the beginning and 41.8MB in the end (delta: -9.6MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-09-12 19:36:45,559 INFO L158 Benchmark]: TraceAbstraction took 14232.83ms. Allocated memory was 71.3MB in the beginning and 182.5MB in the end (delta: 111.1MB). Free memory was 41.2MB in the beginning and 150.0MB in the end (delta: -108.8MB). Peak memory consumption was 101.2MB. Max. memory is 16.1GB. [2024-09-12 19:36:45,560 INFO L158 Benchmark]: Witness Printer took 92.47ms. Allocated memory is still 182.5MB. Free memory was 150.0MB in the beginning and 144.8MB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2024-09-12 19:36:45,561 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24ms. Allocated memory is still 41.9MB. Free memory is still 18.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 249.51ms. Allocated memory is still 58.7MB. Free memory was 30.5MB in the beginning and 34.9MB in the end (delta: -4.4MB). Peak memory consumption was 8.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 17.93ms. Allocated memory is still 58.7MB. Free memory was 34.9MB in the beginning and 33.9MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 33.65ms. Allocated memory is still 58.7MB. Free memory was 33.9MB in the beginning and 32.2MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 541.17ms. Allocated memory was 58.7MB in the beginning and 71.3MB in the end (delta: 12.6MB). Free memory was 32.2MB in the beginning and 41.8MB in the end (delta: -9.6MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 14232.83ms. Allocated memory was 71.3MB in the beginning and 182.5MB in the end (delta: 111.1MB). Free memory was 41.2MB in the beginning and 150.0MB in the end (delta: -108.8MB). Peak memory consumption was 101.2MB. Max. memory is 16.1GB. * Witness Printer took 92.47ms. Allocated memory is still 182.5MB. Free memory was 150.0MB in the beginning and 144.8MB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * 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: 28]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 28]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 28]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 28]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 28]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 28]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 28]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 28]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 28]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 28]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 28]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 28]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 28]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 28]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 28]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 28]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 28]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 28]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 33]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 33]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 34]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 34]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 35]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 35]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 35]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 35]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 37]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 37]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 37]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 37]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 37]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 37]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 37]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 37]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 37]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 37]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 37]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 37]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 37]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 37]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 37]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 37]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 37]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 37]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 12]: 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 5 procedures, 113 locations, 45 error locations. Started 1 CEGAR loops. OverallTime: 12.1s, OverallIterations: 22, TraceHistogramMax: 3, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 3.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1002 SdHoareTripleChecker+Valid, 2.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 988 mSDsluCounter, 2875 SdHoareTripleChecker+Invalid, 2.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1614 mSDsCounter, 110 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2822 IncrementalHoareTripleChecker+Invalid, 2932 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 110 mSolverCounterUnsat, 1261 mSDtfsCounter, 2822 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1257 GetRequests, 1176 SyntacticMatches, 4 SemanticMatches, 77 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=190occurred in iteration=16, 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: 0.7s AutomataMinimizationTime, 22 MinimizatonAttempts, 101 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 3.3s InterpolantComputationTime, 2048 NumberOfCodeBlocks, 2048 NumberOfCodeBlocksAsserted, 36 NumberOfCheckSat, 1720 ConstructedInterpolants, 0 QuantifiedInterpolants, 7233 SizeOfPredicates, 7 NumberOfNonLiveVariables, 1531 ConjunctsInSsa, 79 ConjunctsInUnsatCore, 30 InterpolantComputations, 17 PerfectInterpolantSequences, 447/685 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 45 specifications checked. All of them hold - InvariantResult [Line: 27]: Loop Invariant Derived loop invariant: ((((((((y == 2) && (0 <= k)) && (k <= 2)) && (c <= 9223372036854775805)) && (2 <= c)) && (5 == x)) || (((((x == 0) && (0 <= k)) && (k <= 2)) && (c == 0)) && (y == 0))) || (((((0 <= k) && (y == 1)) && (k <= 2)) && (x == 1)) && (c == 1))) - ProcedureContractResult [Line: 6]: Procedure Contract for assume_abort_if_not Derived contract for procedure assume_abort_if_not. Ensures: (\old(cond) != 0) - ProcedureContractResult [Line: 9]: Procedure Contract for __VERIFIER_assert Derived contract for procedure __VERIFIER_assert. Requires: (1 <= \old(cond)) Ensures: (1 <= \old(cond)) RESULT: Ultimate proved your program to be correct! [2024-09-12 19:36:45,588 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