./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/loops/veris.c_OpenSER_cases1_stripFullBoth_arr.i --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/loops/veris.c_OpenSER_cases1_stripFullBoth_arr.i -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 970cab0a23b690f163a0a51afef8881644c6447187bc11bbe1f60a2a40cf01a7 --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 17:54:32,208 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-09-12 17:54:32,291 INFO L114 SettingsManager]: Loading settings from /storage/repos/certificate-witnesses-artifact/automizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-09-12 17:54:32,298 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-09-12 17:54:32,299 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-09-12 17:54:32,327 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-09-12 17:54:32,327 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-09-12 17:54:32,328 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-09-12 17:54:32,329 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-09-12 17:54:32,330 INFO L153 SettingsManager]: * Use memory slicer=true [2024-09-12 17:54:32,331 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-09-12 17:54:32,331 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-09-12 17:54:32,331 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-09-12 17:54:32,332 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-09-12 17:54:32,335 INFO L153 SettingsManager]: * Use SBE=true [2024-09-12 17:54:32,335 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-09-12 17:54:32,335 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-09-12 17:54:32,336 INFO L153 SettingsManager]: * sizeof long=4 [2024-09-12 17:54:32,336 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-09-12 17:54:32,336 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-09-12 17:54:32,336 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-09-12 17:54:32,337 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-09-12 17:54:32,337 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-09-12 17:54:32,337 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-09-12 17:54:32,337 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-09-12 17:54:32,338 INFO L153 SettingsManager]: * sizeof long double=12 [2024-09-12 17:54:32,338 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-09-12 17:54:32,338 INFO L153 SettingsManager]: * Use constant arrays=true [2024-09-12 17:54:32,338 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-09-12 17:54:32,339 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-09-12 17:54:32,339 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-09-12 17:54:32,339 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-09-12 17:54:32,339 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-12 17:54:32,339 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-09-12 17:54:32,340 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-09-12 17:54:32,340 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-09-12 17:54:32,340 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-09-12 17:54:32,340 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-09-12 17:54:32,341 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-09-12 17:54:32,341 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-09-12 17:54:32,341 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-09-12 17:54:32,341 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-09-12 17:54:32,341 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/certificate-witnesses-artifact/automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 970cab0a23b690f163a0a51afef8881644c6447187bc11bbe1f60a2a40cf01a7 Applying setting for plugin de.uni_freiburg.informatik.ultimate.boogie.procedureinliner: Inline calls to implemented procedures -> NEVER Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> All Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: YAML Format version -> 2.1 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of signed integer overflows -> true [2024-09-12 17:54:32,656 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-09-12 17:54:32,681 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-09-12 17:54:32,683 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-09-12 17:54:32,684 INFO L270 PluginConnector]: Initializing CDTParser... [2024-09-12 17:54:32,685 INFO L274 PluginConnector]: CDTParser initialized [2024-09-12 17:54:32,686 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/automizer/../sv-benchmarks/c/loops/veris.c_OpenSER_cases1_stripFullBoth_arr.i [2024-09-12 17:54:34,248 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-09-12 17:54:34,465 INFO L384 CDTParser]: Found 1 translation units. [2024-09-12 17:54:34,467 INFO L180 CDTParser]: Scanning /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/loops/veris.c_OpenSER_cases1_stripFullBoth_arr.i [2024-09-12 17:54:34,479 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/certificate-witnesses-artifact/automizer/data/6d357f827/8d3776feba5047a0af6597028ce3d686/FLAG3d2004f5f [2024-09-12 17:54:34,496 INFO L435 CDTParser]: Successfully deleted /storage/repos/certificate-witnesses-artifact/automizer/data/6d357f827/8d3776feba5047a0af6597028ce3d686 [2024-09-12 17:54:34,499 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-09-12 17:54:34,501 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-09-12 17:54:34,503 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-09-12 17:54:34,504 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-09-12 17:54:34,509 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-09-12 17:54:34,510 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.09 05:54:34" (1/1) ... [2024-09-12 17:54:34,511 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@549e4cbe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 05:54:34, skipping insertion in model container [2024-09-12 17:54:34,511 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.09 05:54:34" (1/1) ... [2024-09-12 17:54:34,537 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-09-12 17:54:34,707 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/loops/veris.c_OpenSER_cases1_stripFullBoth_arr.i[878,891] [2024-09-12 17:54:34,764 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-12 17:54:34,771 INFO L200 MainTranslator]: Completed pre-run [2024-09-12 17:54:34,789 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/loops/veris.c_OpenSER_cases1_stripFullBoth_arr.i[878,891] [2024-09-12 17:54:34,815 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-12 17:54:34,839 INFO L204 MainTranslator]: Completed translation [2024-09-12 17:54:34,839 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 05:54:34 WrapperNode [2024-09-12 17:54:34,840 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-09-12 17:54:34,841 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-09-12 17:54:34,841 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-09-12 17:54:34,841 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-09-12 17:54:34,848 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 05:54:34" (1/1) ... [2024-09-12 17:54:34,860 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 05:54:34" (1/1) ... [2024-09-12 17:54:34,872 INFO L138 Inliner]: procedures = 42, calls = 29, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2024-09-12 17:54:34,872 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-09-12 17:54:34,873 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-09-12 17:54:34,873 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-09-12 17:54:34,873 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-09-12 17:54:34,885 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 05:54:34" (1/1) ... [2024-09-12 17:54:34,885 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 05:54:34" (1/1) ... [2024-09-12 17:54:34,889 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 05:54:34" (1/1) ... [2024-09-12 17:54:34,912 INFO L175 MemorySlicer]: Split 13 memory accesses to 4 slices as follows [2, 1, 10, 0]. 77 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0, 0]. The 3 writes are split as follows [0, 1, 2, 0]. [2024-09-12 17:54:34,913 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 05:54:34" (1/1) ... [2024-09-12 17:54:34,913 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 05:54:34" (1/1) ... [2024-09-12 17:54:34,921 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 05:54:34" (1/1) ... [2024-09-12 17:54:34,925 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 05:54:34" (1/1) ... [2024-09-12 17:54:34,926 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 05:54:34" (1/1) ... [2024-09-12 17:54:34,927 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 05:54:34" (1/1) ... [2024-09-12 17:54:34,930 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-09-12 17:54:34,931 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-09-12 17:54:34,931 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-09-12 17:54:34,932 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-09-12 17:54:34,933 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 05:54:34" (1/1) ... [2024-09-12 17:54:34,942 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-12 17:54:34,954 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 17:54:34,971 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 17:54:34,977 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 17:54:35,029 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-09-12 17:54:35,029 INFO L130 BoogieDeclarations]: Found specification of procedure r_strncpy [2024-09-12 17:54:35,029 INFO L138 BoogieDeclarations]: Found implementation of procedure r_strncpy [2024-09-12 17:54:35,030 INFO L130 BoogieDeclarations]: Found specification of procedure main [2024-09-12 17:54:35,030 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2024-09-12 17:54:35,030 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-09-12 17:54:35,030 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-09-12 17:54:35,032 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-09-12 17:54:35,032 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-09-12 17:54:35,032 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-09-12 17:54:35,032 INFO L130 BoogieDeclarations]: Found specification of procedure parse_expression_list [2024-09-12 17:54:35,033 INFO L138 BoogieDeclarations]: Found implementation of procedure parse_expression_list [2024-09-12 17:54:35,033 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-09-12 17:54:35,033 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-09-12 17:54:35,033 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-09-12 17:54:35,034 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-09-12 17:54:35,034 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-09-12 17:54:35,034 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-09-12 17:54:35,035 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-09-12 17:54:35,035 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-09-12 17:54:35,035 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2024-09-12 17:54:35,035 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2024-09-12 17:54:35,035 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-09-12 17:54:35,036 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-09-12 17:54:35,036 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-09-12 17:54:35,037 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-09-12 17:54:35,037 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-09-12 17:54:35,138 INFO L242 CfgBuilder]: Building ICFG [2024-09-12 17:54:35,140 INFO L268 CfgBuilder]: Building CFG for each procedure with an implementation [2024-09-12 17:54:35,524 INFO L? ?]: Removed 88 outVars from TransFormulas that were not future-live. [2024-09-12 17:54:35,524 INFO L291 CfgBuilder]: Performing block encoding [2024-09-12 17:54:35,568 INFO L313 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-09-12 17:54:35,570 INFO L318 CfgBuilder]: Removed 4 assume(true) statements. [2024-09-12 17:54:35,571 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.09 05:54:35 BoogieIcfgContainer [2024-09-12 17:54:35,571 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-09-12 17:54:35,574 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-09-12 17:54:35,574 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-09-12 17:54:35,578 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-09-12 17:54:35,578 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.09 05:54:34" (1/3) ... [2024-09-12 17:54:35,579 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@40c56a98 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.09 05:54:35, skipping insertion in model container [2024-09-12 17:54:35,579 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 05:54:34" (2/3) ... [2024-09-12 17:54:35,581 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@40c56a98 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.09 05:54:35, skipping insertion in model container [2024-09-12 17:54:35,581 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.09 05:54:35" (3/3) ... [2024-09-12 17:54:35,583 INFO L112 eAbstractionObserver]: Analyzing ICFG veris.c_OpenSER_cases1_stripFullBoth_arr.i [2024-09-12 17:54:35,600 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:All NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-09-12 17:54:35,600 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 33 error locations. [2024-09-12 17:54:35,664 INFO L335 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-09-12 17:54:35,671 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;@71f1d1f0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-09-12 17:54:35,672 INFO L337 AbstractCegarLoop]: Starting to check reachability of 33 error locations. [2024-09-12 17:54:35,677 INFO L276 IsEmpty]: Start isEmpty. Operand has 111 states, 67 states have (on average 1.7761194029850746) internal successors, (119), 100 states have internal predecessors, (119), 5 states have call successors, (5), 5 states have call predecessors, (5), 5 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-09-12 17:54:35,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-09-12 17:54:35,683 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 17:54:35,684 INFO L216 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-09-12 17:54:35,684 INFO L399 AbstractCegarLoop]: === Iteration 1 === Targeting mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, parse_expression_listErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 30 more)] === [2024-09-12 17:54:35,691 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 17:54:35,691 INFO L85 PathProgramCache]: Analyzing trace with hash -2090483955, now seen corresponding path program 1 times [2024-09-12 17:54:35,701 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 17:54:35,701 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1665772524] [2024-09-12 17:54:35,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 17:54:35,702 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 17:54:35,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:54:35,965 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 17:54:35,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:54:35,977 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 17:54:35,978 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 17:54:35,978 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1665772524] [2024-09-12 17:54:35,979 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1665772524] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 17:54:35,979 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 17:54:35,979 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-12 17:54:35,981 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [455595992] [2024-09-12 17:54:35,981 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 17:54:35,985 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-12 17:54:35,986 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 17:54:36,008 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-12 17:54:36,009 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-09-12 17:54:36,012 INFO L87 Difference]: Start difference. First operand has 111 states, 67 states have (on average 1.7761194029850746) internal successors, (119), 100 states have internal predecessors, (119), 5 states have call successors, (5), 5 states have call predecessors, (5), 5 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Second operand has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 4 states have internal predecessors, (4), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 17:54:36,091 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 17:54:36,092 INFO L93 Difference]: Finished difference Result 217 states and 255 transitions. [2024-09-12 17:54:36,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-12 17:54:36,095 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 4 states have internal predecessors, (4), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 7 [2024-09-12 17:54:36,095 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 17:54:36,103 INFO L225 Difference]: With dead ends: 217 [2024-09-12 17:54:36,103 INFO L226 Difference]: Without dead ends: 107 [2024-09-12 17:54:36,107 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 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 17:54:36,113 INFO L434 NwaCegarLoop]: 117 mSDtfsCounter, 1 mSDsluCounter, 229 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 346 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-09-12 17:54:36,114 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 346 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-09-12 17:54:36,131 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2024-09-12 17:54:36,149 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 107. [2024-09-12 17:54:36,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 107 states, 66 states have (on average 1.6515151515151516) internal successors, (109), 98 states have internal predecessors, (109), 5 states have call successors, (5), 5 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 17:54:36,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 117 transitions. [2024-09-12 17:54:36,158 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 117 transitions. Word has length 7 [2024-09-12 17:54:36,158 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 17:54:36,158 INFO L474 AbstractCegarLoop]: Abstraction has 107 states and 117 transitions. [2024-09-12 17:54:36,159 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 4 states have internal predecessors, (4), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 17:54:36,159 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 17:54:36,159 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 117 transitions. [2024-09-12 17:54:36,160 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2024-09-12 17:54:36,160 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 17:54:36,160 INFO L216 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 17:54:36,161 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-09-12 17:54:36,161 INFO L399 AbstractCegarLoop]: === Iteration 2 === Targeting mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, parse_expression_listErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 30 more)] === [2024-09-12 17:54:36,162 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 17:54:36,162 INFO L85 PathProgramCache]: Analyzing trace with hash -581659529, now seen corresponding path program 1 times [2024-09-12 17:54:36,166 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 17:54:36,166 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [858740690] [2024-09-12 17:54:36,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 17:54:36,166 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 17:54:36,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:54:36,295 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 17:54:36,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:54:36,300 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 17:54:36,301 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 17:54:36,301 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [858740690] [2024-09-12 17:54:36,301 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [858740690] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 17:54:36,301 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [846542785] [2024-09-12 17:54:36,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 17:54:36,302 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 17:54:36,302 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 17:54:36,304 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 17:54:36,306 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 17:54:36,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:54:36,377 INFO L262 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-09-12 17:54:36,385 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 17:54:36,434 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 17:54:36,434 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 17:54:36,435 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [846542785] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 17:54:36,437 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-09-12 17:54:36,437 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2024-09-12 17:54:36,438 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1699806673] [2024-09-12 17:54:36,438 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 17:54:36,439 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-09-12 17:54:36,439 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 17:54:36,441 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-09-12 17:54:36,441 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-09-12 17:54:36,442 INFO L87 Difference]: Start difference. First operand 107 states and 117 transitions. Second operand has 6 states, 5 states have (on average 1.4) internal successors, (7), 6 states have internal predecessors, (7), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 17:54:36,505 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 17:54:36,505 INFO L93 Difference]: Finished difference Result 107 states and 117 transitions. [2024-09-12 17:54:36,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-12 17:54:36,510 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 1.4) internal successors, (7), 6 states have internal predecessors, (7), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 10 [2024-09-12 17:54:36,510 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 17:54:36,511 INFO L225 Difference]: With dead ends: 107 [2024-09-12 17:54:36,511 INFO L226 Difference]: Without dead ends: 106 [2024-09-12 17:54:36,512 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-09-12 17:54:36,513 INFO L434 NwaCegarLoop]: 105 mSDtfsCounter, 1 mSDsluCounter, 311 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 416 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-09-12 17:54:36,516 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 416 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-09-12 17:54:36,517 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106 states. [2024-09-12 17:54:36,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 106. [2024-09-12 17:54:36,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 106 states, 66 states have (on average 1.6363636363636365) internal successors, (108), 97 states have internal predecessors, (108), 5 states have call successors, (5), 5 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 17:54:36,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 116 transitions. [2024-09-12 17:54:36,534 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 116 transitions. Word has length 10 [2024-09-12 17:54:36,534 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 17:54:36,535 INFO L474 AbstractCegarLoop]: Abstraction has 106 states and 116 transitions. [2024-09-12 17:54:36,535 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 1.4) internal successors, (7), 6 states have internal predecessors, (7), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 17:54:36,535 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 17:54:36,536 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 116 transitions. [2024-09-12 17:54:36,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-09-12 17:54:36,536 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 17:54:36,536 INFO L216 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 17:54:36,552 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-09-12 17:54:36,737 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 17:54:36,737 INFO L399 AbstractCegarLoop]: === Iteration 3 === Targeting mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, parse_expression_listErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 30 more)] === [2024-09-12 17:54:36,738 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 17:54:36,738 INFO L85 PathProgramCache]: Analyzing trace with hash -851576169, now seen corresponding path program 1 times [2024-09-12 17:54:36,738 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 17:54:36,738 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [281255576] [2024-09-12 17:54:36,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 17:54:36,739 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 17:54:36,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:54:36,812 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 17:54:36,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:54:36,818 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-09-12 17:54:36,821 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 17:54:36,821 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [281255576] [2024-09-12 17:54:36,822 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [281255576] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 17:54:36,822 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 17:54:36,822 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-09-12 17:54:36,823 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [12678431] [2024-09-12 17:54:36,823 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 17:54:36,823 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-09-12 17:54:36,823 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 17:54:36,824 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-09-12 17:54:36,824 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-12 17:54:36,824 INFO L87 Difference]: Start difference. First operand 106 states and 116 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, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 17:54:36,848 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 17:54:36,848 INFO L93 Difference]: Finished difference Result 106 states and 116 transitions. [2024-09-12 17:54:36,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-12 17:54:36,849 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, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 11 [2024-09-12 17:54:36,849 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 17:54:36,850 INFO L225 Difference]: With dead ends: 106 [2024-09-12 17:54:36,850 INFO L226 Difference]: Without dead ends: 105 [2024-09-12 17:54:36,850 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 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 17:54:36,851 INFO L434 NwaCegarLoop]: 106 mSDtfsCounter, 0 mSDsluCounter, 106 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 212 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-09-12 17:54:36,852 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 212 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-09-12 17:54:36,853 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105 states. [2024-09-12 17:54:36,859 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105 to 103. [2024-09-12 17:54:36,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 103 states, 64 states have (on average 1.640625) internal successors, (105), 94 states have internal predecessors, (105), 5 states have call successors, (5), 5 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 17:54:36,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 113 transitions. [2024-09-12 17:54:36,861 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 113 transitions. Word has length 11 [2024-09-12 17:54:36,861 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 17:54:36,861 INFO L474 AbstractCegarLoop]: Abstraction has 103 states and 113 transitions. [2024-09-12 17:54:36,862 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, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 17:54:36,862 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 17:54:36,862 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 113 transitions. [2024-09-12 17:54:36,863 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-09-12 17:54:36,863 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 17:54:36,863 INFO L216 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 17:54:36,863 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-09-12 17:54:36,863 INFO L399 AbstractCegarLoop]: === Iteration 4 === Targeting parse_expression_listErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, parse_expression_listErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 30 more)] === [2024-09-12 17:54:36,864 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 17:54:36,864 INFO L85 PathProgramCache]: Analyzing trace with hash -877752892, now seen corresponding path program 1 times [2024-09-12 17:54:36,864 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 17:54:36,864 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [731522728] [2024-09-12 17:54:36,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 17:54:36,864 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 17:54:36,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:54:36,941 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 17:54:36,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:54:36,949 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 17:54:36,949 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 17:54:36,949 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [731522728] [2024-09-12 17:54:36,950 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [731522728] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 17:54:36,950 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2062539966] [2024-09-12 17:54:36,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 17:54:36,950 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 17:54:36,951 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 17:54:36,952 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 17:54:36,954 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 17:54:37,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:54:37,018 INFO L262 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-09-12 17:54:37,020 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 17:54:37,047 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 17:54:37,048 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 17:54:37,095 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 17:54:37,096 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2062539966] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 17:54:37,096 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 17:54:37,096 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2024-09-12 17:54:37,096 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [577069279] [2024-09-12 17:54:37,097 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 17:54:37,097 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-09-12 17:54:37,097 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 17:54:37,098 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-09-12 17:54:37,098 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-09-12 17:54:37,098 INFO L87 Difference]: Start difference. First operand 103 states and 113 transitions. Second operand has 10 states, 10 states have (on average 2.0) internal successors, (20), 10 states have internal predecessors, (20), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 17:54:37,149 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 17:54:37,150 INFO L93 Difference]: Finished difference Result 203 states and 224 transitions. [2024-09-12 17:54:37,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-09-12 17:54:37,151 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 2.0) internal successors, (20), 10 states have internal predecessors, (20), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 15 [2024-09-12 17:54:37,151 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 17:54:37,152 INFO L225 Difference]: With dead ends: 203 [2024-09-12 17:54:37,152 INFO L226 Difference]: Without dead ends: 109 [2024-09-12 17:54:37,153 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-09-12 17:54:37,154 INFO L434 NwaCegarLoop]: 106 mSDtfsCounter, 0 mSDsluCounter, 415 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 521 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-09-12 17:54:37,154 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 521 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-09-12 17:54:37,155 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2024-09-12 17:54:37,162 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 109. [2024-09-12 17:54:37,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 109 states, 70 states have (on average 1.5857142857142856) internal successors, (111), 100 states have internal predecessors, (111), 5 states have call successors, (5), 5 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 17:54:37,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 119 transitions. [2024-09-12 17:54:37,164 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 119 transitions. Word has length 15 [2024-09-12 17:54:37,164 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 17:54:37,164 INFO L474 AbstractCegarLoop]: Abstraction has 109 states and 119 transitions. [2024-09-12 17:54:37,165 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 2.0) internal successors, (20), 10 states have internal predecessors, (20), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 17:54:37,166 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 17:54:37,166 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 119 transitions. [2024-09-12 17:54:37,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2024-09-12 17:54:37,166 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 17:54:37,167 INFO L216 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 17:54:37,181 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-09-12 17:54:37,367 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 17:54:37,368 INFO L399 AbstractCegarLoop]: === Iteration 5 === Targeting parse_expression_listErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, parse_expression_listErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 30 more)] === [2024-09-12 17:54:37,368 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 17:54:37,368 INFO L85 PathProgramCache]: Analyzing trace with hash 1875303812, now seen corresponding path program 2 times [2024-09-12 17:54:37,368 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 17:54:37,368 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [749176903] [2024-09-12 17:54:37,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 17:54:37,369 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 17:54:37,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:54:37,468 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 17:54:37,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:54:37,472 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-09-12 17:54:37,473 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 17:54:37,473 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [749176903] [2024-09-12 17:54:37,473 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [749176903] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 17:54:37,473 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 17:54:37,473 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-12 17:54:37,473 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [715450794] [2024-09-12 17:54:37,474 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 17:54:37,474 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-12 17:54:37,474 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 17:54:37,475 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-12 17:54:37,475 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-09-12 17:54:37,475 INFO L87 Difference]: Start difference. First operand 109 states and 119 transitions. Second operand has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 17:54:37,519 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 17:54:37,519 INFO L93 Difference]: Finished difference Result 109 states and 119 transitions. [2024-09-12 17:54:37,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-12 17:54:37,519 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 21 [2024-09-12 17:54:37,520 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 17:54:37,521 INFO L225 Difference]: With dead ends: 109 [2024-09-12 17:54:37,521 INFO L226 Difference]: Without dead ends: 106 [2024-09-12 17:54:37,521 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 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 17:54:37,522 INFO L434 NwaCegarLoop]: 95 mSDtfsCounter, 81 mSDsluCounter, 111 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 83 SdHoareTripleChecker+Valid, 206 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-09-12 17:54:37,522 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [83 Valid, 206 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-09-12 17:54:37,523 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106 states. [2024-09-12 17:54:37,545 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 106. [2024-09-12 17:54:37,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 106 states, 70 states have (on average 1.542857142857143) internal successors, (108), 97 states have internal predecessors, (108), 5 states have call successors, (5), 5 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 17:54:37,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 116 transitions. [2024-09-12 17:54:37,555 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 116 transitions. Word has length 21 [2024-09-12 17:54:37,555 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 17:54:37,555 INFO L474 AbstractCegarLoop]: Abstraction has 106 states and 116 transitions. [2024-09-12 17:54:37,555 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 17:54:37,555 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 17:54:37,555 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 116 transitions. [2024-09-12 17:54:37,556 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2024-09-12 17:54:37,556 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 17:54:37,556 INFO L216 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 17:54:37,556 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-09-12 17:54:37,556 INFO L399 AbstractCegarLoop]: === Iteration 6 === Targeting parse_expression_listErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, parse_expression_listErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 30 more)] === [2024-09-12 17:54:37,557 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 17:54:37,557 INFO L85 PathProgramCache]: Analyzing trace with hash -1995123906, now seen corresponding path program 1 times [2024-09-12 17:54:37,557 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 17:54:37,557 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [980763030] [2024-09-12 17:54:37,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 17:54:37,561 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 17:54:37,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:54:37,634 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 17:54:37,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:54:37,642 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-09-12 17:54:37,642 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 17:54:37,642 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [980763030] [2024-09-12 17:54:37,642 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [980763030] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 17:54:37,643 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 17:54:37,643 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-12 17:54:37,643 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [944162380] [2024-09-12 17:54:37,643 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 17:54:37,643 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-12 17:54:37,643 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 17:54:37,644 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-12 17:54:37,645 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-09-12 17:54:37,645 INFO L87 Difference]: Start difference. First operand 106 states and 116 transitions. Second operand has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 17:54:37,691 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 17:54:37,691 INFO L93 Difference]: Finished difference Result 110 states and 120 transitions. [2024-09-12 17:54:37,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-12 17:54:37,692 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 22 [2024-09-12 17:54:37,692 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 17:54:37,693 INFO L225 Difference]: With dead ends: 110 [2024-09-12 17:54:37,693 INFO L226 Difference]: Without dead ends: 109 [2024-09-12 17:54:37,694 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 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 17:54:37,694 INFO L434 NwaCegarLoop]: 102 mSDtfsCounter, 0 mSDsluCounter, 195 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 297 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-09-12 17:54:37,695 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 297 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-09-12 17:54:37,696 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2024-09-12 17:54:37,707 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 109. [2024-09-12 17:54:37,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 109 states, 73 states have (on average 1.5205479452054795) internal successors, (111), 100 states have internal predecessors, (111), 5 states have call successors, (5), 5 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 17:54:37,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 119 transitions. [2024-09-12 17:54:37,709 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 119 transitions. Word has length 22 [2024-09-12 17:54:37,709 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 17:54:37,709 INFO L474 AbstractCegarLoop]: Abstraction has 109 states and 119 transitions. [2024-09-12 17:54:37,709 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 17:54:37,710 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 17:54:37,710 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 119 transitions. [2024-09-12 17:54:37,711 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2024-09-12 17:54:37,711 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 17:54:37,711 INFO L216 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 17:54:37,711 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-09-12 17:54:37,711 INFO L399 AbstractCegarLoop]: === Iteration 7 === Targeting parse_expression_listErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, parse_expression_listErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 30 more)] === [2024-09-12 17:54:37,712 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 17:54:37,712 INFO L85 PathProgramCache]: Analyzing trace with hash 2142416878, now seen corresponding path program 1 times [2024-09-12 17:54:37,712 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 17:54:37,712 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1857306068] [2024-09-12 17:54:37,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 17:54:37,713 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 17:54:37,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:54:37,829 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 17:54:37,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:54:37,833 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-09-12 17:54:37,834 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 17:54:37,834 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1857306068] [2024-09-12 17:54:37,834 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1857306068] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 17:54:37,834 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 17:54:37,834 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-12 17:54:37,835 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [497838719] [2024-09-12 17:54:37,835 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 17:54:37,835 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-12 17:54:37,835 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 17:54:37,836 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-12 17:54:37,836 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-09-12 17:54:37,837 INFO L87 Difference]: Start difference. First operand 109 states and 119 transitions. Second operand has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 4 states have internal predecessors, (17), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 17:54:37,969 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 17:54:37,970 INFO L93 Difference]: Finished difference Result 165 states and 202 transitions. [2024-09-12 17:54:37,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-12 17:54:37,970 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 4 states have internal predecessors, (17), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 27 [2024-09-12 17:54:37,971 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 17:54:37,973 INFO L225 Difference]: With dead ends: 165 [2024-09-12 17:54:37,973 INFO L226 Difference]: Without dead ends: 163 [2024-09-12 17:54:37,974 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 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 17:54:37,975 INFO L434 NwaCegarLoop]: 64 mSDtfsCounter, 51 mSDsluCounter, 122 mSDsCounter, 0 mSdLazyCounter, 139 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 186 SdHoareTripleChecker+Invalid, 140 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 139 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 17:54:37,976 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [53 Valid, 186 Invalid, 140 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 139 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 17:54:37,977 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 163 states. [2024-09-12 17:54:38,002 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 163 to 120. [2024-09-12 17:54:38,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 120 states, 84 states have (on average 1.5) internal successors, (126), 111 states have internal predecessors, (126), 5 states have call successors, (5), 5 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 17:54:38,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 134 transitions. [2024-09-12 17:54:38,004 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 134 transitions. Word has length 27 [2024-09-12 17:54:38,004 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 17:54:38,005 INFO L474 AbstractCegarLoop]: Abstraction has 120 states and 134 transitions. [2024-09-12 17:54:38,005 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 4 states have internal predecessors, (17), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 17:54:38,005 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 17:54:38,005 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 134 transitions. [2024-09-12 17:54:38,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2024-09-12 17:54:38,006 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 17:54:38,006 INFO L216 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 17:54:38,007 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-09-12 17:54:38,007 INFO L399 AbstractCegarLoop]: === Iteration 8 === Targeting parse_expression_listErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, parse_expression_listErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 30 more)] === [2024-09-12 17:54:38,007 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 17:54:38,007 INFO L85 PathProgramCache]: Analyzing trace with hash 1725043765, now seen corresponding path program 1 times [2024-09-12 17:54:38,007 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 17:54:38,008 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2070370043] [2024-09-12 17:54:38,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 17:54:38,008 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 17:54:38,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:54:38,171 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 17:54:38,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:54:38,179 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-09-12 17:54:38,180 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 17:54:38,180 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2070370043] [2024-09-12 17:54:38,180 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2070370043] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 17:54:38,180 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [804777888] [2024-09-12 17:54:38,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 17:54:38,181 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 17:54:38,181 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 17:54:38,183 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 17:54:38,185 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 17:54:38,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:54:38,267 INFO L262 TraceCheckSpWp]: Trace formula consists of 142 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-09-12 17:54:38,268 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 17:54:38,312 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-09-12 17:54:38,312 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 17:54:38,402 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-09-12 17:54:38,402 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [804777888] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 17:54:38,403 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 17:54:38,403 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 18 [2024-09-12 17:54:38,403 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [958860447] [2024-09-12 17:54:38,403 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 17:54:38,404 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-09-12 17:54:38,404 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 17:54:38,404 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-09-12 17:54:38,405 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2024-09-12 17:54:38,405 INFO L87 Difference]: Start difference. First operand 120 states and 134 transitions. Second operand has 18 states, 18 states have (on average 2.0555555555555554) internal successors, (37), 18 states have internal predecessors, (37), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 17:54:38,463 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 17:54:38,463 INFO L93 Difference]: Finished difference Result 237 states and 268 transitions. [2024-09-12 17:54:38,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-09-12 17:54:38,464 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.0555555555555554) internal successors, (37), 18 states have internal predecessors, (37), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 28 [2024-09-12 17:54:38,464 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 17:54:38,466 INFO L225 Difference]: With dead ends: 237 [2024-09-12 17:54:38,466 INFO L226 Difference]: Without dead ends: 132 [2024-09-12 17:54:38,466 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 82 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2024-09-12 17:54:38,467 INFO L434 NwaCegarLoop]: 103 mSDtfsCounter, 0 mSDsluCounter, 409 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 512 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-09-12 17:54:38,468 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 512 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-09-12 17:54:38,468 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132 states. [2024-09-12 17:54:38,482 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132 to 132. [2024-09-12 17:54:38,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 132 states, 96 states have (on average 1.4375) internal successors, (138), 123 states have internal predecessors, (138), 5 states have call successors, (5), 5 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 17:54:38,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 146 transitions. [2024-09-12 17:54:38,484 INFO L78 Accepts]: Start accepts. Automaton has 132 states and 146 transitions. Word has length 28 [2024-09-12 17:54:38,484 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 17:54:38,485 INFO L474 AbstractCegarLoop]: Abstraction has 132 states and 146 transitions. [2024-09-12 17:54:38,485 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.0555555555555554) internal successors, (37), 18 states have internal predecessors, (37), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 17:54:38,485 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 17:54:38,485 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 146 transitions. [2024-09-12 17:54:38,486 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2024-09-12 17:54:38,486 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 17:54:38,486 INFO L216 NwaCegarLoop]: trace histogram [7, 7, 7, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 17:54:38,503 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-09-12 17:54:38,687 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 17:54:38,687 INFO L399 AbstractCegarLoop]: === Iteration 9 === Targeting parse_expression_listErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, parse_expression_listErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 30 more)] === [2024-09-12 17:54:38,688 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 17:54:38,688 INFO L85 PathProgramCache]: Analyzing trace with hash -1598458699, now seen corresponding path program 2 times [2024-09-12 17:54:38,688 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 17:54:38,688 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [250618228] [2024-09-12 17:54:38,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 17:54:38,688 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 17:54:38,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:54:38,983 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 17:54:38,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:54:38,987 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 0 proven. 70 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-09-12 17:54:38,988 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 17:54:38,988 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [250618228] [2024-09-12 17:54:38,988 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [250618228] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 17:54:38,988 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1001587487] [2024-09-12 17:54:38,988 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-12 17:54:38,989 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 17:54:38,989 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 17:54:38,990 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 17:54:38,992 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 17:54:39,078 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-09-12 17:54:39,078 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 17:54:39,080 INFO L262 TraceCheckSpWp]: Trace formula consists of 194 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-09-12 17:54:39,081 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 17:54:39,146 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 0 proven. 70 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-09-12 17:54:39,147 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 17:54:39,312 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 0 proven. 70 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-09-12 17:54:39,312 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1001587487] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 17:54:39,312 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 17:54:39,312 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 19 [2024-09-12 17:54:39,313 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1106188626] [2024-09-12 17:54:39,313 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 17:54:39,313 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-09-12 17:54:39,314 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 17:54:39,315 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-09-12 17:54:39,315 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=99, Invalid=243, Unknown=0, NotChecked=0, Total=342 [2024-09-12 17:54:39,316 INFO L87 Difference]: Start difference. First operand 132 states and 146 transitions. Second operand has 19 states, 19 states have (on average 2.0) internal successors, (38), 19 states have internal predecessors, (38), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 17:54:39,389 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 17:54:39,389 INFO L93 Difference]: Finished difference Result 240 states and 268 transitions. [2024-09-12 17:54:39,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-09-12 17:54:39,390 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 2.0) internal successors, (38), 19 states have internal predecessors, (38), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 40 [2024-09-12 17:54:39,390 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 17:54:39,391 INFO L225 Difference]: With dead ends: 240 [2024-09-12 17:54:39,392 INFO L226 Difference]: Without dead ends: 135 [2024-09-12 17:54:39,393 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 66 SyntacticMatches, 15 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 287 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=99, Invalid=243, Unknown=0, NotChecked=0, Total=342 [2024-09-12 17:54:39,394 INFO L434 NwaCegarLoop]: 103 mSDtfsCounter, 0 mSDsluCounter, 609 mSDsCounter, 0 mSdLazyCounter, 64 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 712 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 64 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 17:54:39,394 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 712 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 64 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 17:54:39,395 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 135 states. [2024-09-12 17:54:39,434 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 135 to 135. [2024-09-12 17:54:39,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 135 states, 99 states have (on average 1.4242424242424243) internal successors, (141), 126 states have internal predecessors, (141), 5 states have call successors, (5), 5 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 17:54:39,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135 states to 135 states and 149 transitions. [2024-09-12 17:54:39,437 INFO L78 Accepts]: Start accepts. Automaton has 135 states and 149 transitions. Word has length 40 [2024-09-12 17:54:39,437 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 17:54:39,437 INFO L474 AbstractCegarLoop]: Abstraction has 135 states and 149 transitions. [2024-09-12 17:54:39,438 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 2.0) internal successors, (38), 19 states have internal predecessors, (38), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 17:54:39,438 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 17:54:39,438 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states and 149 transitions. [2024-09-12 17:54:39,439 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2024-09-12 17:54:39,439 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 17:54:39,439 INFO L216 NwaCegarLoop]: trace histogram [8, 8, 8, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 17:54:39,457 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 17:54:39,642 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,5 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 17:54:39,643 INFO L399 AbstractCegarLoop]: === Iteration 10 === Targeting parse_expression_listErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, parse_expression_listErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 30 more)] === [2024-09-12 17:54:39,643 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 17:54:39,643 INFO L85 PathProgramCache]: Analyzing trace with hash 2044753035, now seen corresponding path program 3 times [2024-09-12 17:54:39,643 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 17:54:39,643 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [718184231] [2024-09-12 17:54:39,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 17:54:39,644 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 17:54:39,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:54:39,722 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 17:54:39,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:54:39,725 INFO L134 CoverageAnalysis]: Checked inductivity of 95 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked. [2024-09-12 17:54:39,725 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 17:54:39,725 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [718184231] [2024-09-12 17:54:39,725 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [718184231] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 17:54:39,726 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [517544879] [2024-09-12 17:54:39,726 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-09-12 17:54:39,726 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 17:54:39,726 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 17:54:39,728 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 17:54:39,730 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 17:54:39,802 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-09-12 17:54:39,802 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 17:54:39,803 INFO L262 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-09-12 17:54:39,804 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 17:54:39,829 INFO L134 CoverageAnalysis]: Checked inductivity of 95 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked. [2024-09-12 17:54:39,829 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 17:54:39,872 INFO L134 CoverageAnalysis]: Checked inductivity of 95 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked. [2024-09-12 17:54:39,872 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [517544879] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 17:54:39,873 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 17:54:39,873 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 9 [2024-09-12 17:54:39,873 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1899061888] [2024-09-12 17:54:39,873 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 17:54:39,874 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-09-12 17:54:39,874 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 17:54:39,874 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-09-12 17:54:39,874 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2024-09-12 17:54:39,874 INFO L87 Difference]: Start difference. First operand 135 states and 149 transitions. Second operand has 10 states, 9 states have (on average 3.2222222222222223) internal successors, (29), 10 states have internal predecessors, (29), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 17:54:40,004 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 17:54:40,005 INFO L93 Difference]: Finished difference Result 398 states and 462 transitions. [2024-09-12 17:54:40,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-09-12 17:54:40,005 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.2222222222222223) internal successors, (29), 10 states have internal predecessors, (29), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 43 [2024-09-12 17:54:40,006 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 17:54:40,008 INFO L225 Difference]: With dead ends: 398 [2024-09-12 17:54:40,008 INFO L226 Difference]: Without dead ends: 395 [2024-09-12 17:54:40,009 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 84 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2024-09-12 17:54:40,010 INFO L434 NwaCegarLoop]: 98 mSDtfsCounter, 309 mSDsluCounter, 549 mSDsCounter, 0 mSdLazyCounter, 85 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 315 SdHoareTripleChecker+Valid, 647 SdHoareTripleChecker+Invalid, 95 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 85 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 17:54:40,010 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [315 Valid, 647 Invalid, 95 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 85 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 17:54:40,011 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 395 states. [2024-09-12 17:54:40,051 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 395 to 323. [2024-09-12 17:54:40,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 323 states, 281 states have (on average 1.5302491103202847) internal successors, (430), 308 states have internal predecessors, (430), 11 states have call successors, (11), 5 states have call predecessors, (11), 3 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-09-12 17:54:40,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 323 states to 323 states and 450 transitions. [2024-09-12 17:54:40,054 INFO L78 Accepts]: Start accepts. Automaton has 323 states and 450 transitions. Word has length 43 [2024-09-12 17:54:40,055 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 17:54:40,055 INFO L474 AbstractCegarLoop]: Abstraction has 323 states and 450 transitions. [2024-09-12 17:54:40,055 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.2222222222222223) internal successors, (29), 10 states have internal predecessors, (29), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 17:54:40,055 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 17:54:40,055 INFO L276 IsEmpty]: Start isEmpty. Operand 323 states and 450 transitions. [2024-09-12 17:54:40,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2024-09-12 17:54:40,056 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 17:54:40,056 INFO L216 NwaCegarLoop]: trace histogram [8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 17:54:40,073 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 17:54:40,257 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-09-12 17:54:40,258 INFO L399 AbstractCegarLoop]: === Iteration 11 === Targeting parse_expression_listErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, parse_expression_listErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 30 more)] === [2024-09-12 17:54:40,258 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 17:54:40,258 INFO L85 PathProgramCache]: Analyzing trace with hash -1400680286, now seen corresponding path program 1 times [2024-09-12 17:54:40,258 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 17:54:40,258 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2124603979] [2024-09-12 17:54:40,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 17:54:40,259 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 17:54:40,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:54:40,321 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 17:54:40,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:54:40,324 INFO L134 CoverageAnalysis]: Checked inductivity of 92 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked. [2024-09-12 17:54:40,324 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 17:54:40,324 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2124603979] [2024-09-12 17:54:40,324 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2124603979] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 17:54:40,324 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 17:54:40,325 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-12 17:54:40,325 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1965694670] [2024-09-12 17:54:40,325 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 17:54:40,325 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-12 17:54:40,325 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 17:54:40,326 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-12 17:54:40,326 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-09-12 17:54:40,326 INFO L87 Difference]: Start difference. First operand 323 states and 450 transitions. Second operand has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 4 states have internal predecessors, (19), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 17:54:40,468 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 17:54:40,469 INFO L93 Difference]: Finished difference Result 487 states and 727 transitions. [2024-09-12 17:54:40,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-12 17:54:40,469 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 4 states have internal predecessors, (19), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 44 [2024-09-12 17:54:40,469 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 17:54:40,473 INFO L225 Difference]: With dead ends: 487 [2024-09-12 17:54:40,473 INFO L226 Difference]: Without dead ends: 485 [2024-09-12 17:54:40,474 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 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 17:54:40,474 INFO L434 NwaCegarLoop]: 64 mSDtfsCounter, 49 mSDsluCounter, 122 mSDsCounter, 0 mSdLazyCounter, 139 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 186 SdHoareTripleChecker+Invalid, 140 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 139 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 17:54:40,474 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [51 Valid, 186 Invalid, 140 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 139 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 17:54:40,475 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 485 states. [2024-09-12 17:54:40,534 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 485 to 339. [2024-09-12 17:54:40,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 339 states, 297 states have (on average 1.5151515151515151) internal successors, (450), 324 states have internal predecessors, (450), 11 states have call successors, (11), 5 states have call predecessors, (11), 3 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-09-12 17:54:40,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 339 states to 339 states and 470 transitions. [2024-09-12 17:54:40,538 INFO L78 Accepts]: Start accepts. Automaton has 339 states and 470 transitions. Word has length 44 [2024-09-12 17:54:40,538 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 17:54:40,538 INFO L474 AbstractCegarLoop]: Abstraction has 339 states and 470 transitions. [2024-09-12 17:54:40,538 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 4 states have internal predecessors, (19), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 17:54:40,539 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 17:54:40,539 INFO L276 IsEmpty]: Start isEmpty. Operand 339 states and 470 transitions. [2024-09-12 17:54:40,540 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2024-09-12 17:54:40,540 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 17:54:40,540 INFO L216 NwaCegarLoop]: trace histogram [8, 8, 8, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 17:54:40,540 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-09-12 17:54:40,541 INFO L399 AbstractCegarLoop]: === Iteration 12 === Targeting parse_expression_listErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, parse_expression_listErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 30 more)] === [2024-09-12 17:54:40,541 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 17:54:40,541 INFO L85 PathProgramCache]: Analyzing trace with hash -462988120, now seen corresponding path program 1 times [2024-09-12 17:54:40,541 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 17:54:40,542 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1276953086] [2024-09-12 17:54:40,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 17:54:40,542 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 17:54:40,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:54:40,653 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 17:54:40,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:54:40,655 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked. [2024-09-12 17:54:40,655 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 17:54:40,655 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1276953086] [2024-09-12 17:54:40,656 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1276953086] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 17:54:40,656 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [710377252] [2024-09-12 17:54:40,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 17:54:40,656 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 17:54:40,656 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 17:54:40,658 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 17:54:40,659 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 17:54:40,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:54:40,751 INFO L262 TraceCheckSpWp]: Trace formula consists of 225 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-09-12 17:54:40,752 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 17:54:40,785 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked. [2024-09-12 17:54:40,785 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 17:54:40,785 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [710377252] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 17:54:40,785 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-09-12 17:54:40,785 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2024-09-12 17:54:40,786 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1395556942] [2024-09-12 17:54:40,786 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 17:54:40,786 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-09-12 17:54:40,787 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 17:54:40,787 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-09-12 17:54:40,787 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-09-12 17:54:40,788 INFO L87 Difference]: Start difference. First operand 339 states and 470 transitions. Second operand has 6 states, 5 states have (on average 4.4) internal successors, (22), 6 states have internal predecessors, (22), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 17:54:41,091 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 17:54:41,091 INFO L93 Difference]: Finished difference Result 652 states and 1004 transitions. [2024-09-12 17:54:41,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-12 17:54:41,092 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 4.4) internal successors, (22), 6 states have internal predecessors, (22), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 47 [2024-09-12 17:54:41,092 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 17:54:41,097 INFO L225 Difference]: With dead ends: 652 [2024-09-12 17:54:41,097 INFO L226 Difference]: Without dead ends: 651 [2024-09-12 17:54:41,097 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-09-12 17:54:41,098 INFO L434 NwaCegarLoop]: 95 mSDtfsCounter, 97 mSDsluCounter, 285 mSDsCounter, 0 mSdLazyCounter, 351 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 101 SdHoareTripleChecker+Valid, 380 SdHoareTripleChecker+Invalid, 351 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 351 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 17:54:41,098 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [101 Valid, 380 Invalid, 351 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 351 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 17:54:41,099 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 651 states. [2024-09-12 17:54:41,135 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 651 to 354. [2024-09-12 17:54:41,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 354 states, 312 states have (on average 1.516025641025641) internal successors, (473), 339 states have internal predecessors, (473), 11 states have call successors, (11), 5 states have call predecessors, (11), 3 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-09-12 17:54:41,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 354 states to 354 states and 493 transitions. [2024-09-12 17:54:41,139 INFO L78 Accepts]: Start accepts. Automaton has 354 states and 493 transitions. Word has length 47 [2024-09-12 17:54:41,140 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 17:54:41,140 INFO L474 AbstractCegarLoop]: Abstraction has 354 states and 493 transitions. [2024-09-12 17:54:41,140 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 4.4) internal successors, (22), 6 states have internal predecessors, (22), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 17:54:41,140 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 17:54:41,140 INFO L276 IsEmpty]: Start isEmpty. Operand 354 states and 493 transitions. [2024-09-12 17:54:41,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2024-09-12 17:54:41,141 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 17:54:41,141 INFO L216 NwaCegarLoop]: trace histogram [8, 8, 8, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 17:54:41,159 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-09-12 17:54:41,345 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 17:54:41,346 INFO L399 AbstractCegarLoop]: === Iteration 13 === Targeting parse_expression_listErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, parse_expression_listErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 30 more)] === [2024-09-12 17:54:41,346 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 17:54:41,346 INFO L85 PathProgramCache]: Analyzing trace with hash -1467729743, now seen corresponding path program 1 times [2024-09-12 17:54:41,346 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 17:54:41,347 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [652602993] [2024-09-12 17:54:41,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 17:54:41,347 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 17:54:41,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:54:41,433 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 17:54:41,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:54:41,435 INFO L134 CoverageAnalysis]: Checked inductivity of 97 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked. [2024-09-12 17:54:41,435 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 17:54:41,435 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [652602993] [2024-09-12 17:54:41,435 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [652602993] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 17:54:41,436 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1401443541] [2024-09-12 17:54:41,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 17:54:41,436 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 17:54:41,436 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 17:54:41,438 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 17:54:41,439 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 17:54:41,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:54:41,530 INFO L262 TraceCheckSpWp]: Trace formula consists of 226 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-09-12 17:54:41,532 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 17:54:41,575 INFO L134 CoverageAnalysis]: Checked inductivity of 97 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked. [2024-09-12 17:54:41,576 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 17:54:41,623 INFO L134 CoverageAnalysis]: Checked inductivity of 97 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked. [2024-09-12 17:54:41,623 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1401443541] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 17:54:41,623 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 17:54:41,624 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2024-09-12 17:54:41,624 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [634895765] [2024-09-12 17:54:41,624 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 17:54:41,624 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-09-12 17:54:41,624 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 17:54:41,625 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-09-12 17:54:41,625 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2024-09-12 17:54:41,625 INFO L87 Difference]: Start difference. First operand 354 states and 493 transitions. Second operand has 12 states, 11 states have (on average 4.545454545454546) internal successors, (50), 12 states have internal predecessors, (50), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 17:54:42,034 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 17:54:42,035 INFO L93 Difference]: Finished difference Result 1020 states and 1621 transitions. [2024-09-12 17:54:42,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-09-12 17:54:42,035 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 4.545454545454546) internal successors, (50), 12 states have internal predecessors, (50), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 48 [2024-09-12 17:54:42,036 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 17:54:42,041 INFO L225 Difference]: With dead ends: 1020 [2024-09-12 17:54:42,041 INFO L226 Difference]: Without dead ends: 1019 [2024-09-12 17:54:42,042 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 92 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2024-09-12 17:54:42,043 INFO L434 NwaCegarLoop]: 64 mSDtfsCounter, 238 mSDsluCounter, 473 mSDsCounter, 0 mSdLazyCounter, 422 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 246 SdHoareTripleChecker+Valid, 537 SdHoareTripleChecker+Invalid, 425 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 422 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-09-12 17:54:42,043 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [246 Valid, 537 Invalid, 425 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 422 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-09-12 17:54:42,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1019 states. [2024-09-12 17:54:42,091 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1019 to 414. [2024-09-12 17:54:42,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 414 states, 372 states have (on average 1.4973118279569892) internal successors, (557), 399 states have internal predecessors, (557), 11 states have call successors, (11), 5 states have call predecessors, (11), 3 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-09-12 17:54:42,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 414 states to 414 states and 577 transitions. [2024-09-12 17:54:42,095 INFO L78 Accepts]: Start accepts. Automaton has 414 states and 577 transitions. Word has length 48 [2024-09-12 17:54:42,096 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 17:54:42,096 INFO L474 AbstractCegarLoop]: Abstraction has 414 states and 577 transitions. [2024-09-12 17:54:42,097 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 4.545454545454546) internal successors, (50), 12 states have internal predecessors, (50), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 17:54:42,097 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 17:54:42,097 INFO L276 IsEmpty]: Start isEmpty. Operand 414 states and 577 transitions. [2024-09-12 17:54:42,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2024-09-12 17:54:42,099 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 17:54:42,100 INFO L216 NwaCegarLoop]: trace histogram [8, 8, 8, 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 17:54:42,116 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 17:54:42,300 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 17:54:42,301 INFO L399 AbstractCegarLoop]: === Iteration 14 === Targeting parse_expression_listErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, parse_expression_listErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 30 more)] === [2024-09-12 17:54:42,301 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 17:54:42,301 INFO L85 PathProgramCache]: Analyzing trace with hash -1796230474, now seen corresponding path program 1 times [2024-09-12 17:54:42,301 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 17:54:42,302 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1884014871] [2024-09-12 17:54:42,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 17:54:42,302 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 17:54:42,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:54:42,357 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 17:54:42,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:54:42,363 INFO L134 CoverageAnalysis]: Checked inductivity of 92 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked. [2024-09-12 17:54:42,363 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 17:54:42,363 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1884014871] [2024-09-12 17:54:42,363 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1884014871] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 17:54:42,363 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 17:54:42,363 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-12 17:54:42,364 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [968737705] [2024-09-12 17:54:42,366 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 17:54:42,366 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-09-12 17:54:42,366 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 17:54:42,367 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-09-12 17:54:42,367 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-12 17:54:42,367 INFO L87 Difference]: Start difference. First operand 414 states and 577 transitions. Second operand has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 17:54:42,453 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 17:54:42,453 INFO L93 Difference]: Finished difference Result 649 states and 922 transitions. [2024-09-12 17:54:42,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-12 17:54:42,454 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 49 [2024-09-12 17:54:42,454 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 17:54:42,458 INFO L225 Difference]: With dead ends: 649 [2024-09-12 17:54:42,459 INFO L226 Difference]: Without dead ends: 418 [2024-09-12 17:54:42,460 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-12 17:54:42,461 INFO L434 NwaCegarLoop]: 104 mSDtfsCounter, 0 mSDsluCounter, 99 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 203 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-09-12 17:54:42,461 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 203 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-09-12 17:54:42,462 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 418 states. [2024-09-12 17:54:42,508 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 418 to 418. [2024-09-12 17:54:42,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 418 states, 376 states have (on average 1.4920212765957446) internal successors, (561), 403 states have internal predecessors, (561), 11 states have call successors, (11), 5 states have call predecessors, (11), 3 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-09-12 17:54:42,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 418 states to 418 states and 581 transitions. [2024-09-12 17:54:42,512 INFO L78 Accepts]: Start accepts. Automaton has 418 states and 581 transitions. Word has length 49 [2024-09-12 17:54:42,512 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 17:54:42,512 INFO L474 AbstractCegarLoop]: Abstraction has 418 states and 581 transitions. [2024-09-12 17:54:42,513 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 17:54:42,513 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 17:54:42,513 INFO L276 IsEmpty]: Start isEmpty. Operand 418 states and 581 transitions. [2024-09-12 17:54:42,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2024-09-12 17:54:42,514 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 17:54:42,514 INFO L216 NwaCegarLoop]: trace histogram [8, 8, 8, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 17:54:42,514 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-09-12 17:54:42,514 INFO L399 AbstractCegarLoop]: === Iteration 15 === Targeting parse_expression_listErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, parse_expression_listErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 30 more)] === [2024-09-12 17:54:42,514 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 17:54:42,514 INFO L85 PathProgramCache]: Analyzing trace with hash 1744964722, now seen corresponding path program 1 times [2024-09-12 17:54:42,515 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 17:54:42,515 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1897114709] [2024-09-12 17:54:42,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 17:54:42,515 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 17:54:42,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:54:42,612 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 17:54:42,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:54:42,614 INFO L134 CoverageAnalysis]: Checked inductivity of 95 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked. [2024-09-12 17:54:42,615 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 17:54:42,615 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1897114709] [2024-09-12 17:54:42,615 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1897114709] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 17:54:42,615 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [314993194] [2024-09-12 17:54:42,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 17:54:42,615 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 17:54:42,616 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 17:54:42,617 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 17:54:42,619 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 17:54:42,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:54:42,717 INFO L262 TraceCheckSpWp]: Trace formula consists of 229 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-09-12 17:54:42,719 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 17:54:42,756 INFO L134 CoverageAnalysis]: Checked inductivity of 95 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked. [2024-09-12 17:54:42,757 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 17:54:42,757 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [314993194] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 17:54:42,757 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-09-12 17:54:42,757 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2024-09-12 17:54:42,757 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1807559975] [2024-09-12 17:54:42,757 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 17:54:42,758 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-09-12 17:54:42,758 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 17:54:42,758 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-09-12 17:54:42,758 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-09-12 17:54:42,759 INFO L87 Difference]: Start difference. First operand 418 states and 581 transitions. Second operand has 6 states, 5 states have (on average 4.8) internal successors, (24), 6 states have internal predecessors, (24), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 17:54:43,078 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 17:54:43,078 INFO L93 Difference]: Finished difference Result 730 states and 1108 transitions. [2024-09-12 17:54:43,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-12 17:54:43,079 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 4.8) internal successors, (24), 6 states have internal predecessors, (24), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 49 [2024-09-12 17:54:43,079 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 17:54:43,083 INFO L225 Difference]: With dead ends: 730 [2024-09-12 17:54:43,083 INFO L226 Difference]: Without dead ends: 729 [2024-09-12 17:54:43,084 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-09-12 17:54:43,084 INFO L434 NwaCegarLoop]: 94 mSDtfsCounter, 95 mSDsluCounter, 280 mSDsCounter, 0 mSdLazyCounter, 358 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 99 SdHoareTripleChecker+Valid, 374 SdHoareTripleChecker+Invalid, 360 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 358 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 17:54:43,085 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [99 Valid, 374 Invalid, 360 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 358 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 17:54:43,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 729 states. [2024-09-12 17:54:43,140 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 729 to 427. [2024-09-12 17:54:43,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 427 states, 385 states have (on average 1.4857142857142858) internal successors, (572), 412 states have internal predecessors, (572), 11 states have call successors, (11), 5 states have call predecessors, (11), 3 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-09-12 17:54:43,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 427 states to 427 states and 592 transitions. [2024-09-12 17:54:43,144 INFO L78 Accepts]: Start accepts. Automaton has 427 states and 592 transitions. Word has length 49 [2024-09-12 17:54:43,144 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 17:54:43,144 INFO L474 AbstractCegarLoop]: Abstraction has 427 states and 592 transitions. [2024-09-12 17:54:43,144 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 4.8) internal successors, (24), 6 states have internal predecessors, (24), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 17:54:43,144 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 17:54:43,145 INFO L276 IsEmpty]: Start isEmpty. Operand 427 states and 592 transitions. [2024-09-12 17:54:43,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2024-09-12 17:54:43,145 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 17:54:43,145 INFO L216 NwaCegarLoop]: trace histogram [8, 8, 8, 2, 2, 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 17:54:43,161 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 17:54:43,346 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,9 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 17:54:43,346 INFO L399 AbstractCegarLoop]: === Iteration 16 === Targeting parse_expression_listErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, parse_expression_listErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 30 more)] === [2024-09-12 17:54:43,347 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 17:54:43,347 INFO L85 PathProgramCache]: Analyzing trace with hash -1740668366, now seen corresponding path program 1 times [2024-09-12 17:54:43,347 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 17:54:43,347 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1476133902] [2024-09-12 17:54:43,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 17:54:43,347 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 17:54:43,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:54:43,433 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 17:54:43,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:54:43,436 INFO L134 CoverageAnalysis]: Checked inductivity of 95 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked. [2024-09-12 17:54:43,436 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 17:54:43,436 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1476133902] [2024-09-12 17:54:43,436 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1476133902] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 17:54:43,436 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1939875960] [2024-09-12 17:54:43,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 17:54:43,437 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 17:54:43,437 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 17:54:43,439 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 17:54:43,440 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 17:54:43,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:54:43,539 INFO L262 TraceCheckSpWp]: Trace formula consists of 230 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-09-12 17:54:43,541 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 17:54:43,582 INFO L134 CoverageAnalysis]: Checked inductivity of 95 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked. [2024-09-12 17:54:43,582 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 17:54:43,643 INFO L134 CoverageAnalysis]: Checked inductivity of 95 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked. [2024-09-12 17:54:43,643 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1939875960] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 17:54:43,643 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 17:54:43,643 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2024-09-12 17:54:43,643 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1117481634] [2024-09-12 17:54:43,643 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 17:54:43,643 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-09-12 17:54:43,644 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 17:54:43,644 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-09-12 17:54:43,644 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2024-09-12 17:54:43,645 INFO L87 Difference]: Start difference. First operand 427 states and 592 transitions. Second operand has 12 states, 11 states have (on average 4.909090909090909) internal successors, (54), 12 states have internal predecessors, (54), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 17:54:44,048 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 17:54:44,048 INFO L93 Difference]: Finished difference Result 1057 states and 1652 transitions. [2024-09-12 17:54:44,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-09-12 17:54:44,048 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 4.909090909090909) internal successors, (54), 12 states have internal predecessors, (54), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 50 [2024-09-12 17:54:44,048 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 17:54:44,053 INFO L225 Difference]: With dead ends: 1057 [2024-09-12 17:54:44,054 INFO L226 Difference]: Without dead ends: 1056 [2024-09-12 17:54:44,054 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 96 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2024-09-12 17:54:44,055 INFO L434 NwaCegarLoop]: 62 mSDtfsCounter, 278 mSDsluCounter, 445 mSDsCounter, 0 mSdLazyCounter, 428 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 286 SdHoareTripleChecker+Valid, 507 SdHoareTripleChecker+Invalid, 433 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 428 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 17:54:44,055 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [286 Valid, 507 Invalid, 433 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 428 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 17:54:44,056 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1056 states. [2024-09-12 17:54:44,148 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1056 to 427. [2024-09-12 17:54:44,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 427 states, 385 states have (on average 1.4857142857142858) internal successors, (572), 412 states have internal predecessors, (572), 11 states have call successors, (11), 5 states have call predecessors, (11), 3 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-09-12 17:54:44,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 427 states to 427 states and 592 transitions. [2024-09-12 17:54:44,152 INFO L78 Accepts]: Start accepts. Automaton has 427 states and 592 transitions. Word has length 50 [2024-09-12 17:54:44,152 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 17:54:44,153 INFO L474 AbstractCegarLoop]: Abstraction has 427 states and 592 transitions. [2024-09-12 17:54:44,153 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 4.909090909090909) internal successors, (54), 12 states have internal predecessors, (54), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 17:54:44,154 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 17:54:44,155 INFO L276 IsEmpty]: Start isEmpty. Operand 427 states and 592 transitions. [2024-09-12 17:54:44,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2024-09-12 17:54:44,155 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 17:54:44,155 INFO L216 NwaCegarLoop]: trace histogram [8, 8, 8, 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 17:54:44,173 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-09-12 17:54:44,359 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2024-09-12 17:54:44,360 INFO L399 AbstractCegarLoop]: === Iteration 17 === Targeting parse_expression_listErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, parse_expression_listErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 30 more)] === [2024-09-12 17:54:44,360 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 17:54:44,360 INFO L85 PathProgramCache]: Analyzing trace with hash 390692849, now seen corresponding path program 1 times [2024-09-12 17:54:44,360 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 17:54:44,360 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1576104711] [2024-09-12 17:54:44,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 17:54:44,361 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 17:54:44,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:54:44,431 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 17:54:44,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:54:44,434 INFO L134 CoverageAnalysis]: Checked inductivity of 92 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked. [2024-09-12 17:54:44,434 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 17:54:44,434 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1576104711] [2024-09-12 17:54:44,434 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1576104711] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 17:54:44,434 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 17:54:44,434 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-09-12 17:54:44,435 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1873323253] [2024-09-12 17:54:44,435 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 17:54:44,435 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-12 17:54:44,435 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 17:54:44,435 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-12 17:54:44,436 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-09-12 17:54:44,436 INFO L87 Difference]: Start difference. First operand 427 states and 592 transitions. Second operand has 5 states, 4 states have (on average 6.5) internal successors, (26), 5 states have internal predecessors, (26), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 17:54:44,631 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 17:54:44,631 INFO L93 Difference]: Finished difference Result 523 states and 768 transitions. [2024-09-12 17:54:44,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-12 17:54:44,632 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 6.5) internal successors, (26), 5 states have internal predecessors, (26), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 51 [2024-09-12 17:54:44,632 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 17:54:44,636 INFO L225 Difference]: With dead ends: 523 [2024-09-12 17:54:44,636 INFO L226 Difference]: Without dead ends: 522 [2024-09-12 17:54:44,637 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-09-12 17:54:44,637 INFO L434 NwaCegarLoop]: 104 mSDtfsCounter, 50 mSDsluCounter, 160 mSDsCounter, 0 mSdLazyCounter, 164 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 264 SdHoareTripleChecker+Invalid, 166 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 164 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 17:54:44,637 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [52 Valid, 264 Invalid, 166 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 164 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 17:54:44,638 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 522 states. [2024-09-12 17:54:44,686 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 522 to 426. [2024-09-12 17:54:44,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 426 states, 385 states have (on average 1.4753246753246754) internal successors, (568), 411 states have internal predecessors, (568), 11 states have call successors, (11), 5 states have call predecessors, (11), 3 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-09-12 17:54:44,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 426 states to 426 states and 588 transitions. [2024-09-12 17:54:44,690 INFO L78 Accepts]: Start accepts. Automaton has 426 states and 588 transitions. Word has length 51 [2024-09-12 17:54:44,690 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 17:54:44,690 INFO L474 AbstractCegarLoop]: Abstraction has 426 states and 588 transitions. [2024-09-12 17:54:44,690 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 6.5) internal successors, (26), 5 states have internal predecessors, (26), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 17:54:44,691 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 17:54:44,691 INFO L276 IsEmpty]: Start isEmpty. Operand 426 states and 588 transitions. [2024-09-12 17:54:44,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2024-09-12 17:54:44,691 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 17:54:44,691 INFO L216 NwaCegarLoop]: trace histogram [8, 8, 8, 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 17:54:44,692 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-09-12 17:54:44,692 INFO L399 AbstractCegarLoop]: === Iteration 18 === Targeting parse_expression_listErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, parse_expression_listErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 30 more)] === [2024-09-12 17:54:44,693 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 17:54:44,693 INFO L85 PathProgramCache]: Analyzing trace with hash -773423435, now seen corresponding path program 1 times [2024-09-12 17:54:44,693 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 17:54:44,693 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1716589345] [2024-09-12 17:54:44,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 17:54:44,693 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 17:54:44,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:54:44,782 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 17:54:44,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:54:44,785 INFO L134 CoverageAnalysis]: Checked inductivity of 92 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked. [2024-09-12 17:54:44,785 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 17:54:44,785 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1716589345] [2024-09-12 17:54:44,785 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1716589345] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 17:54:44,785 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 17:54:44,785 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-09-12 17:54:44,785 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1035739635] [2024-09-12 17:54:44,785 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 17:54:44,786 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-09-12 17:54:44,786 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 17:54:44,786 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-09-12 17:54:44,786 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-09-12 17:54:44,787 INFO L87 Difference]: Start difference. First operand 426 states and 588 transitions. Second operand has 7 states, 7 states have (on average 3.857142857142857) internal successors, (27), 7 states have internal predecessors, (27), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 17:54:45,038 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 17:54:45,038 INFO L93 Difference]: Finished difference Result 696 states and 956 transitions. [2024-09-12 17:54:45,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-09-12 17:54:45,038 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.857142857142857) internal successors, (27), 7 states have internal predecessors, (27), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 52 [2024-09-12 17:54:45,039 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 17:54:45,041 INFO L225 Difference]: With dead ends: 696 [2024-09-12 17:54:45,041 INFO L226 Difference]: Without dead ends: 462 [2024-09-12 17:54:45,042 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2024-09-12 17:54:45,043 INFO L434 NwaCegarLoop]: 57 mSDtfsCounter, 123 mSDsluCounter, 308 mSDsCounter, 0 mSdLazyCounter, 284 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 125 SdHoareTripleChecker+Valid, 365 SdHoareTripleChecker+Invalid, 289 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 284 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 17:54:45,043 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [125 Valid, 365 Invalid, 289 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 284 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 17:54:45,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 462 states. [2024-09-12 17:54:45,088 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 462 to 421. [2024-09-12 17:54:45,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 421 states, 380 states have (on average 1.4710526315789474) internal successors, (559), 406 states have internal predecessors, (559), 11 states have call successors, (11), 5 states have call predecessors, (11), 3 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-09-12 17:54:45,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 421 states to 421 states and 579 transitions. [2024-09-12 17:54:45,092 INFO L78 Accepts]: Start accepts. Automaton has 421 states and 579 transitions. Word has length 52 [2024-09-12 17:54:45,092 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 17:54:45,092 INFO L474 AbstractCegarLoop]: Abstraction has 421 states and 579 transitions. [2024-09-12 17:54:45,093 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.857142857142857) internal successors, (27), 7 states have internal predecessors, (27), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 17:54:45,093 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 17:54:45,093 INFO L276 IsEmpty]: Start isEmpty. Operand 421 states and 579 transitions. [2024-09-12 17:54:45,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2024-09-12 17:54:45,093 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 17:54:45,094 INFO L216 NwaCegarLoop]: trace histogram [8, 8, 8, 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 17:54:45,094 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-09-12 17:54:45,094 INFO L399 AbstractCegarLoop]: === Iteration 19 === Targeting parse_expression_listErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, parse_expression_listErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 30 more)] === [2024-09-12 17:54:45,094 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 17:54:45,094 INFO L85 PathProgramCache]: Analyzing trace with hash -506036237, now seen corresponding path program 1 times [2024-09-12 17:54:45,094 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 17:54:45,094 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1812494407] [2024-09-12 17:54:45,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 17:54:45,095 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 17:54:45,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:54:45,124 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 17:54:45,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:54:45,126 INFO L134 CoverageAnalysis]: Checked inductivity of 92 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked. [2024-09-12 17:54:45,126 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 17:54:45,126 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1812494407] [2024-09-12 17:54:45,126 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1812494407] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 17:54:45,126 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 17:54:45,126 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-12 17:54:45,126 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1750748622] [2024-09-12 17:54:45,127 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 17:54:45,127 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-09-12 17:54:45,127 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 17:54:45,128 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-09-12 17:54:45,128 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-12 17:54:45,128 INFO L87 Difference]: Start difference. First operand 421 states and 579 transitions. Second operand has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 17:54:45,186 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 17:54:45,186 INFO L93 Difference]: Finished difference Result 648 states and 907 transitions. [2024-09-12 17:54:45,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-12 17:54:45,187 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 52 [2024-09-12 17:54:45,187 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 17:54:45,190 INFO L225 Difference]: With dead ends: 648 [2024-09-12 17:54:45,190 INFO L226 Difference]: Without dead ends: 425 [2024-09-12 17:54:45,191 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-12 17:54:45,191 INFO L434 NwaCegarLoop]: 103 mSDtfsCounter, 0 mSDsluCounter, 99 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 202 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-09-12 17:54:45,191 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 202 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-09-12 17:54:45,192 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 425 states. [2024-09-12 17:54:45,248 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 425 to 425. [2024-09-12 17:54:45,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 425 states, 384 states have (on average 1.4661458333333333) internal successors, (563), 410 states have internal predecessors, (563), 11 states have call successors, (11), 5 states have call predecessors, (11), 3 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-09-12 17:54:45,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 425 states to 425 states and 583 transitions. [2024-09-12 17:54:45,252 INFO L78 Accepts]: Start accepts. Automaton has 425 states and 583 transitions. Word has length 52 [2024-09-12 17:54:45,252 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 17:54:45,252 INFO L474 AbstractCegarLoop]: Abstraction has 425 states and 583 transitions. [2024-09-12 17:54:45,252 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 17:54:45,253 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 17:54:45,253 INFO L276 IsEmpty]: Start isEmpty. Operand 425 states and 583 transitions. [2024-09-12 17:54:45,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2024-09-12 17:54:45,253 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 17:54:45,253 INFO L216 NwaCegarLoop]: trace histogram [8, 8, 8, 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 17:54:45,253 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-09-12 17:54:45,254 INFO L399 AbstractCegarLoop]: === Iteration 20 === Targeting parse_expression_listErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, parse_expression_listErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 30 more)] === [2024-09-12 17:54:45,254 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 17:54:45,254 INFO L85 PathProgramCache]: Analyzing trace with hash -506038159, now seen corresponding path program 1 times [2024-09-12 17:54:45,254 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 17:54:45,254 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [977705905] [2024-09-12 17:54:45,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 17:54:45,254 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 17:54:45,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:54:45,321 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 17:54:45,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:54:45,323 INFO L134 CoverageAnalysis]: Checked inductivity of 92 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked. [2024-09-12 17:54:45,323 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 17:54:45,323 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [977705905] [2024-09-12 17:54:45,324 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [977705905] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 17:54:45,324 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 17:54:45,324 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-09-12 17:54:45,324 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1805671962] [2024-09-12 17:54:45,324 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 17:54:45,324 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-12 17:54:45,325 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 17:54:45,325 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-12 17:54:45,325 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-09-12 17:54:45,325 INFO L87 Difference]: Start difference. First operand 425 states and 583 transitions. Second operand has 5 states, 5 states have (on average 5.4) internal successors, (27), 5 states have internal predecessors, (27), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 17:54:45,512 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 17:54:45,513 INFO L93 Difference]: Finished difference Result 721 states and 1031 transitions. [2024-09-12 17:54:45,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-12 17:54:45,514 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.4) internal successors, (27), 5 states have internal predecessors, (27), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 52 [2024-09-12 17:54:45,515 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 17:54:45,518 INFO L225 Difference]: With dead ends: 721 [2024-09-12 17:54:45,518 INFO L226 Difference]: Without dead ends: 494 [2024-09-12 17:54:45,519 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-09-12 17:54:45,519 INFO L434 NwaCegarLoop]: 65 mSDtfsCounter, 43 mSDsluCounter, 119 mSDsCounter, 0 mSdLazyCounter, 138 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 184 SdHoareTripleChecker+Invalid, 141 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 138 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 17:54:45,520 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 184 Invalid, 141 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 138 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 17:54:45,521 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 494 states. [2024-09-12 17:54:45,614 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 494 to 428. [2024-09-12 17:54:45,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 428 states, 387 states have (on average 1.4521963824289406) internal successors, (562), 413 states have internal predecessors, (562), 11 states have call successors, (11), 5 states have call predecessors, (11), 3 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-09-12 17:54:45,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 428 states to 428 states and 582 transitions. [2024-09-12 17:54:45,620 INFO L78 Accepts]: Start accepts. Automaton has 428 states and 582 transitions. Word has length 52 [2024-09-12 17:54:45,620 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 17:54:45,620 INFO L474 AbstractCegarLoop]: Abstraction has 428 states and 582 transitions. [2024-09-12 17:54:45,621 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.4) internal successors, (27), 5 states have internal predecessors, (27), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 17:54:45,621 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 17:54:45,621 INFO L276 IsEmpty]: Start isEmpty. Operand 428 states and 582 transitions. [2024-09-12 17:54:45,623 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2024-09-12 17:54:45,624 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 17:54:45,624 INFO L216 NwaCegarLoop]: trace histogram [8, 8, 8, 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 17:54:45,624 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-09-12 17:54:45,624 INFO L399 AbstractCegarLoop]: === Iteration 21 === Targeting parse_expression_listErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, parse_expression_listErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 30 more)] === [2024-09-12 17:54:45,625 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 17:54:45,625 INFO L85 PathProgramCache]: Analyzing trace with hash 1492752010, now seen corresponding path program 1 times [2024-09-12 17:54:45,625 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 17:54:45,626 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2028046485] [2024-09-12 17:54:45,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 17:54:45,626 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 17:54:45,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:54:45,669 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 17:54:45,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:54:45,672 INFO L134 CoverageAnalysis]: Checked inductivity of 92 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked. [2024-09-12 17:54:45,672 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 17:54:45,672 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2028046485] [2024-09-12 17:54:45,672 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2028046485] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 17:54:45,672 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 17:54:45,672 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-09-12 17:54:45,673 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1696932157] [2024-09-12 17:54:45,673 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 17:54:45,673 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-09-12 17:54:45,673 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 17:54:45,674 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-09-12 17:54:45,674 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-12 17:54:45,674 INFO L87 Difference]: Start difference. First operand 428 states and 582 transitions. Second operand has 3 states, 2 states have (on average 14.0) internal successors, (28), 3 states have internal predecessors, (28), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 17:54:45,786 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 17:54:45,787 INFO L93 Difference]: Finished difference Result 428 states and 582 transitions. [2024-09-12 17:54:45,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-12 17:54:45,787 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 14.0) internal successors, (28), 3 states have internal predecessors, (28), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 53 [2024-09-12 17:54:45,787 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 17:54:45,791 INFO L225 Difference]: With dead ends: 428 [2024-09-12 17:54:45,791 INFO L226 Difference]: Without dead ends: 420 [2024-09-12 17:54:45,791 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 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 17:54:45,792 INFO L434 NwaCegarLoop]: 71 mSDtfsCounter, 17 mSDsluCounter, 48 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 119 SdHoareTripleChecker+Invalid, 68 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 17:54:45,792 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 119 Invalid, 68 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 17:54:45,793 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 420 states. [2024-09-12 17:54:45,848 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 420 to 420. [2024-09-12 17:54:45,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 420 states, 387 states have (on average 1.3695090439276485) internal successors, (530), 405 states have internal predecessors, (530), 11 states have call successors, (11), 5 states have call predecessors, (11), 3 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-09-12 17:54:45,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 420 states to 420 states and 550 transitions. [2024-09-12 17:54:45,851 INFO L78 Accepts]: Start accepts. Automaton has 420 states and 550 transitions. Word has length 53 [2024-09-12 17:54:45,852 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 17:54:45,852 INFO L474 AbstractCegarLoop]: Abstraction has 420 states and 550 transitions. [2024-09-12 17:54:45,852 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 14.0) internal successors, (28), 3 states have internal predecessors, (28), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 17:54:45,852 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 17:54:45,852 INFO L276 IsEmpty]: Start isEmpty. Operand 420 states and 550 transitions. [2024-09-12 17:54:45,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2024-09-12 17:54:45,855 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 17:54:45,855 INFO L216 NwaCegarLoop]: trace histogram [8, 8, 8, 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 17:54:45,855 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-09-12 17:54:45,855 INFO L399 AbstractCegarLoop]: === Iteration 22 === Targeting parse_expression_listErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, parse_expression_listErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 30 more)] === [2024-09-12 17:54:45,855 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 17:54:45,855 INFO L85 PathProgramCache]: Analyzing trace with hash -969327785, now seen corresponding path program 1 times [2024-09-12 17:54:45,855 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 17:54:45,855 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1196643472] [2024-09-12 17:54:45,856 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 17:54:45,856 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 17:54:45,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:54:45,948 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 17:54:45,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:54:45,950 INFO L134 CoverageAnalysis]: Checked inductivity of 92 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked. [2024-09-12 17:54:45,950 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 17:54:45,950 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1196643472] [2024-09-12 17:54:45,951 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1196643472] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 17:54:45,951 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 17:54:45,951 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-09-12 17:54:45,951 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2062109186] [2024-09-12 17:54:45,951 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 17:54:45,951 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-12 17:54:45,952 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 17:54:45,952 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-12 17:54:45,952 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-09-12 17:54:45,952 INFO L87 Difference]: Start difference. First operand 420 states and 550 transitions. Second operand has 5 states, 4 states have (on average 7.25) internal successors, (29), 5 states have internal predecessors, (29), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 17:54:46,176 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 17:54:46,176 INFO L93 Difference]: Finished difference Result 608 states and 800 transitions. [2024-09-12 17:54:46,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-12 17:54:46,178 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 7.25) internal successors, (29), 5 states have internal predecessors, (29), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 54 [2024-09-12 17:54:46,178 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 17:54:46,181 INFO L225 Difference]: With dead ends: 608 [2024-09-12 17:54:46,181 INFO L226 Difference]: Without dead ends: 600 [2024-09-12 17:54:46,182 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2024-09-12 17:54:46,182 INFO L434 NwaCegarLoop]: 70 mSDtfsCounter, 79 mSDsluCounter, 110 mSDsCounter, 0 mSdLazyCounter, 134 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 81 SdHoareTripleChecker+Valid, 180 SdHoareTripleChecker+Invalid, 147 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 134 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 17:54:46,182 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [81 Valid, 180 Invalid, 147 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 134 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 17:54:46,183 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 600 states. [2024-09-12 17:54:46,278 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 600 to 592. [2024-09-12 17:54:46,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 592 states, 551 states have (on average 1.323049001814882) internal successors, (729), 569 states have internal predecessors, (729), 19 states have call successors, (19), 5 states have call predecessors, (19), 3 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-09-12 17:54:46,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 592 states to 592 states and 765 transitions. [2024-09-12 17:54:46,282 INFO L78 Accepts]: Start accepts. Automaton has 592 states and 765 transitions. Word has length 54 [2024-09-12 17:54:46,282 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 17:54:46,283 INFO L474 AbstractCegarLoop]: Abstraction has 592 states and 765 transitions. [2024-09-12 17:54:46,283 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 7.25) internal successors, (29), 5 states have internal predecessors, (29), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 17:54:46,283 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 17:54:46,283 INFO L276 IsEmpty]: Start isEmpty. Operand 592 states and 765 transitions. [2024-09-12 17:54:46,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2024-09-12 17:54:46,284 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 17:54:46,284 INFO L216 NwaCegarLoop]: trace histogram [8, 8, 8, 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 17:54:46,284 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-09-12 17:54:46,284 INFO L399 AbstractCegarLoop]: === Iteration 23 === Targeting parse_expression_listErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, parse_expression_listErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 30 more)] === [2024-09-12 17:54:46,285 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 17:54:46,285 INFO L85 PathProgramCache]: Analyzing trace with hash -1533189733, now seen corresponding path program 1 times [2024-09-12 17:54:46,285 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 17:54:46,285 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [751731245] [2024-09-12 17:54:46,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 17:54:46,285 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 17:54:46,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:54:46,387 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 17:54:46,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:54:46,390 INFO L134 CoverageAnalysis]: Checked inductivity of 92 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked. [2024-09-12 17:54:46,390 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 17:54:46,390 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [751731245] [2024-09-12 17:54:46,390 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [751731245] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 17:54:46,390 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 17:54:46,390 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-09-12 17:54:46,390 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1030573518] [2024-09-12 17:54:46,391 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 17:54:46,391 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-09-12 17:54:46,391 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 17:54:46,391 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-09-12 17:54:46,392 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-09-12 17:54:46,392 INFO L87 Difference]: Start difference. First operand 592 states and 765 transitions. Second operand has 7 states, 6 states have (on average 5.166666666666667) internal successors, (31), 7 states have internal predecessors, (31), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 17:54:46,756 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 17:54:46,756 INFO L93 Difference]: Finished difference Result 962 states and 1252 transitions. [2024-09-12 17:54:46,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-09-12 17:54:46,756 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 5.166666666666667) internal successors, (31), 7 states have internal predecessors, (31), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 56 [2024-09-12 17:54:46,757 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 17:54:46,760 INFO L225 Difference]: With dead ends: 962 [2024-09-12 17:54:46,760 INFO L226 Difference]: Without dead ends: 715 [2024-09-12 17:54:46,763 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2024-09-12 17:54:46,764 INFO L434 NwaCegarLoop]: 94 mSDtfsCounter, 90 mSDsluCounter, 267 mSDsCounter, 0 mSdLazyCounter, 334 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 94 SdHoareTripleChecker+Valid, 361 SdHoareTripleChecker+Invalid, 335 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 334 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 17:54:46,764 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [94 Valid, 361 Invalid, 335 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 334 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 17:54:46,765 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 715 states. [2024-09-12 17:54:46,859 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 715 to 625. [2024-09-12 17:54:46,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 625 states, 584 states have (on average 1.3202054794520548) internal successors, (771), 602 states have internal predecessors, (771), 19 states have call successors, (19), 5 states have call predecessors, (19), 3 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-09-12 17:54:46,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 625 states to 625 states and 807 transitions. [2024-09-12 17:54:46,867 INFO L78 Accepts]: Start accepts. Automaton has 625 states and 807 transitions. Word has length 56 [2024-09-12 17:54:46,867 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 17:54:46,867 INFO L474 AbstractCegarLoop]: Abstraction has 625 states and 807 transitions. [2024-09-12 17:54:46,868 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 5.166666666666667) internal successors, (31), 7 states have internal predecessors, (31), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 17:54:46,868 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 17:54:46,868 INFO L276 IsEmpty]: Start isEmpty. Operand 625 states and 807 transitions. [2024-09-12 17:54:46,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2024-09-12 17:54:46,869 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 17:54:46,869 INFO L216 NwaCegarLoop]: trace histogram [8, 8, 8, 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] [2024-09-12 17:54:46,870 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-09-12 17:54:46,870 INFO L399 AbstractCegarLoop]: === Iteration 24 === Targeting parse_expression_listErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, parse_expression_listErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 30 more)] === [2024-09-12 17:54:46,870 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 17:54:46,870 INFO L85 PathProgramCache]: Analyzing trace with hash 1331353950, now seen corresponding path program 1 times [2024-09-12 17:54:46,870 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 17:54:46,870 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [637423503] [2024-09-12 17:54:46,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 17:54:46,871 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 17:54:46,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:54:46,996 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 17:54:46,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:54:46,999 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked. [2024-09-12 17:54:46,999 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 17:54:46,999 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [637423503] [2024-09-12 17:54:46,999 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [637423503] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 17:54:46,999 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1609325313] [2024-09-12 17:54:46,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 17:54:46,999 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 17:54:46,999 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 17:54:47,002 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 17:54:47,004 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 17:54:47,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:54:47,115 INFO L262 TraceCheckSpWp]: Trace formula consists of 240 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-09-12 17:54:47,117 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 17:54:47,147 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked. [2024-09-12 17:54:47,147 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 17:54:47,204 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked. [2024-09-12 17:54:47,204 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1609325313] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 17:54:47,204 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 17:54:47,204 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 9 [2024-09-12 17:54:47,204 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [648073042] [2024-09-12 17:54:47,205 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 17:54:47,205 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-09-12 17:54:47,205 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 17:54:47,205 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-09-12 17:54:47,206 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-09-12 17:54:47,206 INFO L87 Difference]: Start difference. First operand 625 states and 807 transitions. Second operand has 9 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 9 states have internal predecessors, (33), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 17:54:47,539 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 17:54:47,539 INFO L93 Difference]: Finished difference Result 848 states and 1057 transitions. [2024-09-12 17:54:47,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-09-12 17:54:47,540 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 9 states have internal predecessors, (33), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 58 [2024-09-12 17:54:47,540 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 17:54:47,544 INFO L225 Difference]: With dead ends: 848 [2024-09-12 17:54:47,544 INFO L226 Difference]: Without dead ends: 610 [2024-09-12 17:54:47,545 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 113 SyntacticMatches, 6 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=44, Invalid=112, Unknown=0, NotChecked=0, Total=156 [2024-09-12 17:54:47,546 INFO L434 NwaCegarLoop]: 59 mSDtfsCounter, 152 mSDsluCounter, 364 mSDsCounter, 0 mSdLazyCounter, 291 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 152 SdHoareTripleChecker+Valid, 423 SdHoareTripleChecker+Invalid, 300 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 291 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 17:54:47,546 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [152 Valid, 423 Invalid, 300 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 291 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 17:54:47,547 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 610 states. [2024-09-12 17:54:47,687 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 610 to 588. [2024-09-12 17:54:47,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 588 states, 547 states have (on average 1.3016453382084094) internal successors, (712), 565 states have internal predecessors, (712), 19 states have call successors, (19), 5 states have call predecessors, (19), 3 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-09-12 17:54:47,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 588 states to 588 states and 748 transitions. [2024-09-12 17:54:47,691 INFO L78 Accepts]: Start accepts. Automaton has 588 states and 748 transitions. Word has length 58 [2024-09-12 17:54:47,692 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 17:54:47,692 INFO L474 AbstractCegarLoop]: Abstraction has 588 states and 748 transitions. [2024-09-12 17:54:47,692 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 9 states have internal predecessors, (33), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 17:54:47,692 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 17:54:47,692 INFO L276 IsEmpty]: Start isEmpty. Operand 588 states and 748 transitions. [2024-09-12 17:54:47,693 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2024-09-12 17:54:47,693 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 17:54:47,693 INFO L216 NwaCegarLoop]: trace histogram [8, 8, 8, 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] [2024-09-12 17:54:47,709 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 17:54:47,893 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2024-09-12 17:54:47,894 INFO L399 AbstractCegarLoop]: === Iteration 25 === Targeting parse_expression_listErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, parse_expression_listErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 30 more)] === [2024-09-12 17:54:47,894 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 17:54:47,894 INFO L85 PathProgramCache]: Analyzing trace with hash -996445401, now seen corresponding path program 1 times [2024-09-12 17:54:47,894 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 17:54:47,895 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1164747469] [2024-09-12 17:54:47,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 17:54:47,895 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 17:54:47,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:54:47,995 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 17:54:47,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:54:47,998 INFO L134 CoverageAnalysis]: Checked inductivity of 95 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked. [2024-09-12 17:54:47,998 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 17:54:47,998 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1164747469] [2024-09-12 17:54:47,998 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1164747469] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 17:54:47,998 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1175963485] [2024-09-12 17:54:47,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 17:54:47,999 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 17:54:47,999 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 17:54:48,001 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 17:54:48,002 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 17:54:48,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:54:48,117 INFO L262 TraceCheckSpWp]: Trace formula consists of 238 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-09-12 17:54:48,120 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 17:54:48,204 INFO L134 CoverageAnalysis]: Checked inductivity of 95 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked. [2024-09-12 17:54:48,204 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 17:54:48,204 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1175963485] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 17:54:48,204 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-09-12 17:54:48,204 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [6] total 9 [2024-09-12 17:54:48,205 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1546566753] [2024-09-12 17:54:48,205 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 17:54:48,205 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-09-12 17:54:48,205 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 17:54:48,206 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-09-12 17:54:48,206 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2024-09-12 17:54:48,206 INFO L87 Difference]: Start difference. First operand 588 states and 748 transitions. Second operand has 6 states, 5 states have (on average 6.8) internal successors, (34), 6 states have internal predecessors, (34), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 17:54:48,445 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 17:54:48,445 INFO L93 Difference]: Finished difference Result 741 states and 941 transitions. [2024-09-12 17:54:48,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-12 17:54:48,446 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 6.8) internal successors, (34), 6 states have internal predecessors, (34), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 59 [2024-09-12 17:54:48,446 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 17:54:48,449 INFO L225 Difference]: With dead ends: 741 [2024-09-12 17:54:48,449 INFO L226 Difference]: Without dead ends: 733 [2024-09-12 17:54:48,450 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2024-09-12 17:54:48,450 INFO L434 NwaCegarLoop]: 94 mSDtfsCounter, 102 mSDsluCounter, 222 mSDsCounter, 0 mSdLazyCounter, 219 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 106 SdHoareTripleChecker+Valid, 316 SdHoareTripleChecker+Invalid, 230 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 219 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 17:54:48,451 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [106 Valid, 316 Invalid, 230 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 219 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 17:54:48,451 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 733 states. [2024-09-12 17:54:48,539 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 733 to 616. [2024-09-12 17:54:48,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 616 states, 575 states have (on average 1.3165217391304347) internal successors, (757), 593 states have internal predecessors, (757), 19 states have call successors, (19), 5 states have call predecessors, (19), 3 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-09-12 17:54:48,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 616 states to 616 states and 793 transitions. [2024-09-12 17:54:48,543 INFO L78 Accepts]: Start accepts. Automaton has 616 states and 793 transitions. Word has length 59 [2024-09-12 17:54:48,543 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 17:54:48,544 INFO L474 AbstractCegarLoop]: Abstraction has 616 states and 793 transitions. [2024-09-12 17:54:48,544 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 6.8) internal successors, (34), 6 states have internal predecessors, (34), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 17:54:48,544 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 17:54:48,544 INFO L276 IsEmpty]: Start isEmpty. Operand 616 states and 793 transitions. [2024-09-12 17:54:48,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2024-09-12 17:54:48,545 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 17:54:48,545 INFO L216 NwaCegarLoop]: trace histogram [8, 8, 8, 4, 4, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 17:54:48,561 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2024-09-12 17:54:48,745 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2024-09-12 17:54:48,746 INFO L399 AbstractCegarLoop]: === Iteration 26 === Targeting parse_expression_listErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, parse_expression_listErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 30 more)] === [2024-09-12 17:54:48,746 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 17:54:48,746 INFO L85 PathProgramCache]: Analyzing trace with hash 863691826, now seen corresponding path program 2 times [2024-09-12 17:54:48,746 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 17:54:48,746 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [585271685] [2024-09-12 17:54:48,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 17:54:48,746 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 17:54:48,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:54:48,885 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 17:54:48,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:54:48,889 INFO L134 CoverageAnalysis]: Checked inductivity of 116 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked. [2024-09-12 17:54:48,889 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 17:54:48,889 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [585271685] [2024-09-12 17:54:48,889 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [585271685] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 17:54:48,889 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [505753477] [2024-09-12 17:54:48,890 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-12 17:54:48,890 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 17:54:48,890 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 17:54:48,892 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 17:54:48,893 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 17:54:49,019 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-09-12 17:54:49,020 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 17:54:49,021 INFO L262 TraceCheckSpWp]: Trace formula consists of 258 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-09-12 17:54:49,022 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 17:54:49,069 INFO L134 CoverageAnalysis]: Checked inductivity of 116 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked. [2024-09-12 17:54:49,070 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 17:54:49,165 INFO L134 CoverageAnalysis]: Checked inductivity of 116 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked. [2024-09-12 17:54:49,166 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [505753477] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 17:54:49,166 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 17:54:49,166 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 19 [2024-09-12 17:54:49,166 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1792282432] [2024-09-12 17:54:49,166 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 17:54:49,167 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-09-12 17:54:49,167 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 17:54:49,167 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-09-12 17:54:49,168 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=95, Invalid=285, Unknown=0, NotChecked=0, Total=380 [2024-09-12 17:54:49,169 INFO L87 Difference]: Start difference. First operand 616 states and 793 transitions. Second operand has 20 states, 19 states have (on average 3.8947368421052633) internal successors, (74), 20 states have internal predecessors, (74), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 17:54:49,889 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 17:54:49,889 INFO L93 Difference]: Finished difference Result 1819 states and 2236 transitions. [2024-09-12 17:54:49,889 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-09-12 17:54:49,890 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 19 states have (on average 3.8947368421052633) internal successors, (74), 20 states have internal predecessors, (74), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 60 [2024-09-12 17:54:49,890 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 17:54:49,897 INFO L225 Difference]: With dead ends: 1819 [2024-09-12 17:54:49,897 INFO L226 Difference]: Without dead ends: 1817 [2024-09-12 17:54:49,898 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 112 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 103 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=95, Invalid=285, Unknown=0, NotChecked=0, Total=380 [2024-09-12 17:54:49,899 INFO L434 NwaCegarLoop]: 61 mSDtfsCounter, 524 mSDsluCounter, 657 mSDsCounter, 0 mSdLazyCounter, 553 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 540 SdHoareTripleChecker+Valid, 718 SdHoareTripleChecker+Invalid, 563 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 553 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-09-12 17:54:49,899 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [540 Valid, 718 Invalid, 563 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 553 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-09-12 17:54:49,901 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1817 states. [2024-09-12 17:54:50,011 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1817 to 668. [2024-09-12 17:54:50,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 668 states, 627 states have (on average 1.328548644338118) internal successors, (833), 645 states have internal predecessors, (833), 19 states have call successors, (19), 5 states have call predecessors, (19), 3 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-09-12 17:54:50,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 668 states to 668 states and 869 transitions. [2024-09-12 17:54:50,015 INFO L78 Accepts]: Start accepts. Automaton has 668 states and 869 transitions. Word has length 60 [2024-09-12 17:54:50,015 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 17:54:50,015 INFO L474 AbstractCegarLoop]: Abstraction has 668 states and 869 transitions. [2024-09-12 17:54:50,016 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 19 states have (on average 3.8947368421052633) internal successors, (74), 20 states have internal predecessors, (74), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 17:54:50,016 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 17:54:50,016 INFO L276 IsEmpty]: Start isEmpty. Operand 668 states and 869 transitions. [2024-09-12 17:54:50,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2024-09-12 17:54:50,017 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 17:54:50,017 INFO L216 NwaCegarLoop]: trace histogram [8, 8, 8, 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] [2024-09-12 17:54:50,032 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 17:54:50,217 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2024-09-12 17:54:50,217 INFO L399 AbstractCegarLoop]: === Iteration 27 === Targeting parse_expression_listErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, parse_expression_listErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 30 more)] === [2024-09-12 17:54:50,218 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 17:54:50,218 INFO L85 PathProgramCache]: Analyzing trace with hash -1823414933, now seen corresponding path program 1 times [2024-09-12 17:54:50,218 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 17:54:50,218 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [950505332] [2024-09-12 17:54:50,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 17:54:50,218 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 17:54:50,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:54:50,346 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 17:54:50,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:54:50,348 INFO L134 CoverageAnalysis]: Checked inductivity of 95 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked. [2024-09-12 17:54:50,348 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 17:54:50,348 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [950505332] [2024-09-12 17:54:50,348 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [950505332] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 17:54:50,348 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1264130776] [2024-09-12 17:54:50,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 17:54:50,349 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 17:54:50,349 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 17:54:50,351 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 17:54:50,352 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 17:54:50,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:54:50,474 INFO L262 TraceCheckSpWp]: Trace formula consists of 245 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-09-12 17:54:50,475 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 17:54:50,543 INFO L134 CoverageAnalysis]: Checked inductivity of 95 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked. [2024-09-12 17:54:50,543 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 17:54:50,543 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1264130776] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 17:54:50,543 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-09-12 17:54:50,543 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [8] total 11 [2024-09-12 17:54:50,543 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [450008801] [2024-09-12 17:54:50,544 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 17:54:50,544 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-09-12 17:54:50,544 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 17:54:50,544 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-09-12 17:54:50,544 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2024-09-12 17:54:50,545 INFO L87 Difference]: Start difference. First operand 668 states and 869 transitions. Second operand has 8 states, 7 states have (on average 5.142857142857143) internal successors, (36), 8 states have internal predecessors, (36), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 17:54:50,879 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 17:54:50,879 INFO L93 Difference]: Finished difference Result 907 states and 1145 transitions. [2024-09-12 17:54:50,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-09-12 17:54:50,879 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 5.142857142857143) internal successors, (36), 8 states have internal predecessors, (36), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 61 [2024-09-12 17:54:50,880 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 17:54:50,883 INFO L225 Difference]: With dead ends: 907 [2024-09-12 17:54:50,883 INFO L226 Difference]: Without dead ends: 899 [2024-09-12 17:54:50,883 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2024-09-12 17:54:50,884 INFO L434 NwaCegarLoop]: 114 mSDtfsCounter, 126 mSDsluCounter, 394 mSDsCounter, 0 mSdLazyCounter, 387 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 132 SdHoareTripleChecker+Valid, 508 SdHoareTripleChecker+Invalid, 397 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 387 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 17:54:50,884 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [132 Valid, 508 Invalid, 397 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 387 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 17:54:50,885 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 899 states. [2024-09-12 17:54:51,008 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 899 to 642. [2024-09-12 17:54:51,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 642 states, 603 states have (on average 1.3333333333333333) internal successors, (804), 621 states have internal predecessors, (804), 17 states have call successors, (17), 5 states have call predecessors, (17), 3 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-09-12 17:54:51,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 642 states to 642 states and 836 transitions. [2024-09-12 17:54:51,012 INFO L78 Accepts]: Start accepts. Automaton has 642 states and 836 transitions. Word has length 61 [2024-09-12 17:54:51,013 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 17:54:51,013 INFO L474 AbstractCegarLoop]: Abstraction has 642 states and 836 transitions. [2024-09-12 17:54:51,013 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 5.142857142857143) internal successors, (36), 8 states have internal predecessors, (36), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 17:54:51,013 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 17:54:51,013 INFO L276 IsEmpty]: Start isEmpty. Operand 642 states and 836 transitions. [2024-09-12 17:54:51,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2024-09-12 17:54:51,014 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 17:54:51,015 INFO L216 NwaCegarLoop]: trace histogram [8, 8, 8, 5, 5, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 17:54:51,032 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 17:54:51,215 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2024-09-12 17:54:51,215 INFO L399 AbstractCegarLoop]: === Iteration 28 === Targeting parse_expression_listErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, parse_expression_listErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 30 more)] === [2024-09-12 17:54:51,216 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 17:54:51,216 INFO L85 PathProgramCache]: Analyzing trace with hash 1607454320, now seen corresponding path program 4 times [2024-09-12 17:54:51,216 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 17:54:51,216 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1332626481] [2024-09-12 17:54:51,216 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 17:54:51,216 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 17:54:51,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:54:51,351 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 17:54:51,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:54:51,354 INFO L134 CoverageAnalysis]: Checked inductivity of 140 backedges. 0 proven. 48 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked. [2024-09-12 17:54:51,354 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 17:54:51,354 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1332626481] [2024-09-12 17:54:51,355 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1332626481] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 17:54:51,355 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1825424314] [2024-09-12 17:54:51,355 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-09-12 17:54:51,355 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 17:54:51,355 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 17:54:51,357 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 17:54:51,359 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 17:54:51,486 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-09-12 17:54:51,486 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 17:54:51,487 INFO L262 TraceCheckSpWp]: Trace formula consists of 246 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-09-12 17:54:51,488 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 17:54:51,528 INFO L134 CoverageAnalysis]: Checked inductivity of 140 backedges. 0 proven. 48 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked. [2024-09-12 17:54:51,528 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 17:54:51,659 INFO L134 CoverageAnalysis]: Checked inductivity of 140 backedges. 0 proven. 48 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked. [2024-09-12 17:54:51,659 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1825424314] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 17:54:51,659 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 17:54:51,659 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 21 [2024-09-12 17:54:51,659 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [107353064] [2024-09-12 17:54:51,659 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 17:54:51,659 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-09-12 17:54:51,660 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 17:54:51,660 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-09-12 17:54:51,660 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=131, Invalid=331, Unknown=0, NotChecked=0, Total=462 [2024-09-12 17:54:51,660 INFO L87 Difference]: Start difference. First operand 642 states and 836 transitions. Second operand has 22 states, 21 states have (on average 3.0952380952380953) internal successors, (65), 22 states have internal predecessors, (65), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 17:54:52,028 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 17:54:52,028 INFO L93 Difference]: Finished difference Result 1874 states and 2414 transitions. [2024-09-12 17:54:52,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-09-12 17:54:52,028 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 21 states have (on average 3.0952380952380953) internal successors, (65), 22 states have internal predecessors, (65), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 61 [2024-09-12 17:54:52,029 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 17:54:52,034 INFO L225 Difference]: With dead ends: 1874 [2024-09-12 17:54:52,034 INFO L226 Difference]: Without dead ends: 1871 [2024-09-12 17:54:52,034 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 134 GetRequests, 114 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 97 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=131, Invalid=331, Unknown=0, NotChecked=0, Total=462 [2024-09-12 17:54:52,035 INFO L434 NwaCegarLoop]: 97 mSDtfsCounter, 1035 mSDsluCounter, 858 mSDsCounter, 0 mSdLazyCounter, 158 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1053 SdHoareTripleChecker+Valid, 955 SdHoareTripleChecker+Invalid, 178 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 158 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 17:54:52,035 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [1053 Valid, 955 Invalid, 178 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 158 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 17:54:52,037 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1871 states. [2024-09-12 17:54:52,340 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1871 to 1722. [2024-09-12 17:54:52,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1722 states, 1659 states have (on average 1.3634719710669079) internal successors, (2262), 1677 states have internal predecessors, (2262), 41 states have call successors, (41), 5 states have call predecessors, (41), 3 states have return successors, (39), 39 states have call predecessors, (39), 39 states have call successors, (39) [2024-09-12 17:54:52,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1722 states to 1722 states and 2342 transitions. [2024-09-12 17:54:52,348 INFO L78 Accepts]: Start accepts. Automaton has 1722 states and 2342 transitions. Word has length 61 [2024-09-12 17:54:52,348 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 17:54:52,348 INFO L474 AbstractCegarLoop]: Abstraction has 1722 states and 2342 transitions. [2024-09-12 17:54:52,349 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 21 states have (on average 3.0952380952380953) internal successors, (65), 22 states have internal predecessors, (65), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 17:54:52,349 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 17:54:52,349 INFO L276 IsEmpty]: Start isEmpty. Operand 1722 states and 2342 transitions. [2024-09-12 17:54:52,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2024-09-12 17:54:52,350 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 17:54:52,350 INFO L216 NwaCegarLoop]: trace histogram [8, 8, 8, 3, 3, 3, 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 17:54:52,367 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2024-09-12 17:54:52,550 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2024-09-12 17:54:52,551 INFO L399 AbstractCegarLoop]: === Iteration 29 === Targeting parse_expression_listErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, parse_expression_listErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 30 more)] === [2024-09-12 17:54:52,551 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 17:54:52,551 INFO L85 PathProgramCache]: Analyzing trace with hash -1029648057, now seen corresponding path program 2 times [2024-09-12 17:54:52,551 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 17:54:52,551 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [16999733] [2024-09-12 17:54:52,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 17:54:52,551 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 17:54:52,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:54:52,674 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 17:54:52,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:54:52,676 INFO L134 CoverageAnalysis]: Checked inductivity of 106 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked. [2024-09-12 17:54:52,676 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 17:54:52,676 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [16999733] [2024-09-12 17:54:52,676 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [16999733] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 17:54:52,676 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [403572938] [2024-09-12 17:54:52,677 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-12 17:54:52,677 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 17:54:52,677 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 17:54:52,679 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 17:54:52,680 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2024-09-12 17:54:52,796 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-09-12 17:54:52,796 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 17:54:52,797 INFO L262 TraceCheckSpWp]: Trace formula consists of 123 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-09-12 17:54:52,798 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 17:54:52,841 INFO L134 CoverageAnalysis]: Checked inductivity of 106 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2024-09-12 17:54:52,842 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 17:54:52,842 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [403572938] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 17:54:52,842 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-09-12 17:54:52,842 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [10] total 13 [2024-09-12 17:54:52,842 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1214809557] [2024-09-12 17:54:52,843 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 17:54:52,843 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-12 17:54:52,843 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 17:54:52,843 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-12 17:54:52,844 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=142, Unknown=0, NotChecked=0, Total=182 [2024-09-12 17:54:52,844 INFO L87 Difference]: Start difference. First operand 1722 states and 2342 transitions. Second operand has 5 states, 4 states have (on average 7.75) internal successors, (31), 5 states have internal predecessors, (31), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 17:54:53,301 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 17:54:53,302 INFO L93 Difference]: Finished difference Result 2098 states and 2830 transitions. [2024-09-12 17:54:53,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-12 17:54:53,302 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 7.75) internal successors, (31), 5 states have internal predecessors, (31), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 64 [2024-09-12 17:54:53,302 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 17:54:53,311 INFO L225 Difference]: With dead ends: 2098 [2024-09-12 17:54:53,311 INFO L226 Difference]: Without dead ends: 2096 [2024-09-12 17:54:53,312 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=192, Unknown=0, NotChecked=0, Total=240 [2024-09-12 17:54:53,312 INFO L434 NwaCegarLoop]: 55 mSDtfsCounter, 114 mSDsluCounter, 119 mSDsCounter, 0 mSdLazyCounter, 134 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 116 SdHoareTripleChecker+Valid, 174 SdHoareTripleChecker+Invalid, 141 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 134 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 17:54:53,313 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [116 Valid, 174 Invalid, 141 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 134 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 17:54:53,314 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2096 states. [2024-09-12 17:54:53,650 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2096 to 1720. [2024-09-12 17:54:53,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1720 states, 1659 states have (on average 1.3417721518987342) internal successors, (2226), 1675 states have internal predecessors, (2226), 41 states have call successors, (41), 5 states have call predecessors, (41), 3 states have return successors, (39), 39 states have call predecessors, (39), 39 states have call successors, (39) [2024-09-12 17:54:53,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1720 states to 1720 states and 2306 transitions. [2024-09-12 17:54:53,659 INFO L78 Accepts]: Start accepts. Automaton has 1720 states and 2306 transitions. Word has length 64 [2024-09-12 17:54:53,659 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 17:54:53,659 INFO L474 AbstractCegarLoop]: Abstraction has 1720 states and 2306 transitions. [2024-09-12 17:54:53,660 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 7.75) internal successors, (31), 5 states have internal predecessors, (31), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 17:54:53,660 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 17:54:53,660 INFO L276 IsEmpty]: Start isEmpty. Operand 1720 states and 2306 transitions. [2024-09-12 17:54:53,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2024-09-12 17:54:53,661 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 17:54:53,661 INFO L216 NwaCegarLoop]: trace histogram [8, 8, 8, 3, 3, 3, 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] [2024-09-12 17:54:53,675 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2024-09-12 17:54:53,862 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2024-09-12 17:54:53,862 INFO L399 AbstractCegarLoop]: === Iteration 30 === Targeting parse_expression_listErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, parse_expression_listErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 30 more)] === [2024-09-12 17:54:53,862 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 17:54:53,863 INFO L85 PathProgramCache]: Analyzing trace with hash -1650961560, now seen corresponding path program 1 times [2024-09-12 17:54:53,863 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 17:54:53,863 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [237860385] [2024-09-12 17:54:53,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 17:54:53,863 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 17:54:53,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:54:53,924 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 17:54:53,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:54:53,927 INFO L134 CoverageAnalysis]: Checked inductivity of 106 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 106 trivial. 0 not checked. [2024-09-12 17:54:53,927 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 17:54:53,927 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [237860385] [2024-09-12 17:54:53,927 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [237860385] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 17:54:53,927 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 17:54:53,928 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-09-12 17:54:53,928 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2061045373] [2024-09-12 17:54:53,928 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 17:54:53,928 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-12 17:54:53,928 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 17:54:53,929 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-12 17:54:53,929 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-09-12 17:54:53,929 INFO L87 Difference]: Start difference. First operand 1720 states and 2306 transitions. Second operand has 4 states, 4 states have (on average 8.0) internal successors, (32), 4 states have internal predecessors, (32), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 17:54:54,339 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 17:54:54,340 INFO L93 Difference]: Finished difference Result 2538 states and 3425 transitions. [2024-09-12 17:54:54,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-12 17:54:54,340 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.0) internal successors, (32), 4 states have internal predecessors, (32), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 66 [2024-09-12 17:54:54,340 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 17:54:54,347 INFO L225 Difference]: With dead ends: 2538 [2024-09-12 17:54:54,348 INFO L226 Difference]: Without dead ends: 1784 [2024-09-12 17:54:54,349 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 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 17:54:54,350 INFO L434 NwaCegarLoop]: 92 mSDtfsCounter, 0 mSDsluCounter, 176 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 268 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-09-12 17:54:54,350 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 268 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-09-12 17:54:54,352 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1784 states. [2024-09-12 17:54:54,670 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1784 to 1784. [2024-09-12 17:54:54,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1784 states, 1723 states have (on average 1.3290771909460244) internal successors, (2290), 1739 states have internal predecessors, (2290), 41 states have call successors, (41), 5 states have call predecessors, (41), 3 states have return successors, (39), 39 states have call predecessors, (39), 39 states have call successors, (39) [2024-09-12 17:54:54,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1784 states to 1784 states and 2370 transitions. [2024-09-12 17:54:54,675 INFO L78 Accepts]: Start accepts. Automaton has 1784 states and 2370 transitions. Word has length 66 [2024-09-12 17:54:54,675 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 17:54:54,675 INFO L474 AbstractCegarLoop]: Abstraction has 1784 states and 2370 transitions. [2024-09-12 17:54:54,675 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.0) internal successors, (32), 4 states have internal predecessors, (32), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 17:54:54,675 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 17:54:54,676 INFO L276 IsEmpty]: Start isEmpty. Operand 1784 states and 2370 transitions. [2024-09-12 17:54:54,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2024-09-12 17:54:54,676 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 17:54:54,677 INFO L216 NwaCegarLoop]: trace histogram [8, 8, 8, 3, 3, 3, 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] [2024-09-12 17:54:54,677 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2024-09-12 17:54:54,677 INFO L399 AbstractCegarLoop]: === Iteration 31 === Targeting parse_expression_listErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, parse_expression_listErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 30 more)] === [2024-09-12 17:54:54,677 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 17:54:54,677 INFO L85 PathProgramCache]: Analyzing trace with hash 124045802, now seen corresponding path program 1 times [2024-09-12 17:54:54,677 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 17:54:54,677 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [139950805] [2024-09-12 17:54:54,677 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 17:54:54,677 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 17:54:54,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:54:54,740 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 17:54:54,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:54:54,742 INFO L134 CoverageAnalysis]: Checked inductivity of 106 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 106 trivial. 0 not checked. [2024-09-12 17:54:54,742 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 17:54:54,742 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [139950805] [2024-09-12 17:54:54,742 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [139950805] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 17:54:54,742 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 17:54:54,742 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-09-12 17:54:54,743 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [690266549] [2024-09-12 17:54:54,743 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 17:54:54,743 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-12 17:54:54,743 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 17:54:54,743 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-12 17:54:54,744 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-09-12 17:54:54,744 INFO L87 Difference]: Start difference. First operand 1784 states and 2370 transitions. Second operand has 5 states, 4 states have (on average 8.0) internal successors, (32), 5 states have internal predecessors, (32), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 17:54:55,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 17:54:55,293 INFO L93 Difference]: Finished difference Result 2176 states and 2874 transitions. [2024-09-12 17:54:55,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-12 17:54:55,293 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 8.0) internal successors, (32), 5 states have internal predecessors, (32), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 66 [2024-09-12 17:54:55,293 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 17:54:55,302 INFO L225 Difference]: With dead ends: 2176 [2024-09-12 17:54:55,303 INFO L226 Difference]: Without dead ends: 2175 [2024-09-12 17:54:55,304 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-09-12 17:54:55,304 INFO L434 NwaCegarLoop]: 83 mSDtfsCounter, 23 mSDsluCounter, 189 mSDsCounter, 0 mSdLazyCounter, 162 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 272 SdHoareTripleChecker+Invalid, 162 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 162 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 17:54:55,304 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 272 Invalid, 162 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 162 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 17:54:55,306 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2175 states. [2024-09-12 17:54:55,707 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2175 to 1783. [2024-09-12 17:54:55,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1783 states, 1723 states have (on average 1.3151479976784677) internal successors, (2266), 1738 states have internal predecessors, (2266), 41 states have call successors, (41), 5 states have call predecessors, (41), 3 states have return successors, (39), 39 states have call predecessors, (39), 39 states have call successors, (39) [2024-09-12 17:54:55,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1783 states to 1783 states and 2346 transitions. [2024-09-12 17:54:55,714 INFO L78 Accepts]: Start accepts. Automaton has 1783 states and 2346 transitions. Word has length 66 [2024-09-12 17:54:55,715 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 17:54:55,715 INFO L474 AbstractCegarLoop]: Abstraction has 1783 states and 2346 transitions. [2024-09-12 17:54:55,715 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 8.0) internal successors, (32), 5 states have internal predecessors, (32), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 17:54:55,715 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 17:54:55,715 INFO L276 IsEmpty]: Start isEmpty. Operand 1783 states and 2346 transitions. [2024-09-12 17:54:55,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2024-09-12 17:54:55,716 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 17:54:55,717 INFO L216 NwaCegarLoop]: trace histogram [8, 8, 8, 3, 3, 3, 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] [2024-09-12 17:54:55,717 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2024-09-12 17:54:55,717 INFO L399 AbstractCegarLoop]: === Iteration 32 === Targeting parse_expression_listErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, parse_expression_listErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 30 more)] === [2024-09-12 17:54:55,717 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 17:54:55,717 INFO L85 PathProgramCache]: Analyzing trace with hash -449547283, now seen corresponding path program 1 times [2024-09-12 17:54:55,717 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 17:54:55,717 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [143624213] [2024-09-12 17:54:55,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 17:54:55,718 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 17:54:55,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:54:55,840 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 17:54:55,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:54:55,842 INFO L134 CoverageAnalysis]: Checked inductivity of 106 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked. [2024-09-12 17:54:55,842 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 17:54:55,843 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [143624213] [2024-09-12 17:54:55,843 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [143624213] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 17:54:55,843 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [674606611] [2024-09-12 17:54:55,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 17:54:55,843 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 17:54:55,843 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 17:54:55,845 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 17:54:55,846 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2024-09-12 17:54:55,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:54:55,982 INFO L262 TraceCheckSpWp]: Trace formula consists of 262 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-09-12 17:54:55,983 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 17:54:56,026 INFO L134 CoverageAnalysis]: Checked inductivity of 106 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked. [2024-09-12 17:54:56,027 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 17:54:56,158 INFO L134 CoverageAnalysis]: Checked inductivity of 106 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked. [2024-09-12 17:54:56,158 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [674606611] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 17:54:56,158 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 17:54:56,158 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 19 [2024-09-12 17:54:56,158 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1275313332] [2024-09-12 17:54:56,158 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 17:54:56,159 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-09-12 17:54:56,159 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 17:54:56,159 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-09-12 17:54:56,159 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=298, Unknown=0, NotChecked=0, Total=380 [2024-09-12 17:54:56,160 INFO L87 Difference]: Start difference. First operand 1783 states and 2346 transitions. Second operand has 20 states, 19 states have (on average 4.052631578947368) internal successors, (77), 20 states have internal predecessors, (77), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 17:54:56,955 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 17:54:56,955 INFO L93 Difference]: Finished difference Result 1938 states and 2509 transitions. [2024-09-12 17:54:56,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-09-12 17:54:56,955 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 19 states have (on average 4.052631578947368) internal successors, (77), 20 states have internal predecessors, (77), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 67 [2024-09-12 17:54:56,955 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 17:54:56,964 INFO L225 Difference]: With dead ends: 1938 [2024-09-12 17:54:56,965 INFO L226 Difference]: Without dead ends: 1937 [2024-09-12 17:54:56,966 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 153 GetRequests, 127 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 118 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=162, Invalid=594, Unknown=0, NotChecked=0, Total=756 [2024-09-12 17:54:56,966 INFO L434 NwaCegarLoop]: 48 mSDtfsCounter, 606 mSDsluCounter, 498 mSDsCounter, 0 mSdLazyCounter, 743 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 606 SdHoareTripleChecker+Valid, 546 SdHoareTripleChecker+Invalid, 773 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 743 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-09-12 17:54:56,966 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [606 Valid, 546 Invalid, 773 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 743 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-09-12 17:54:56,968 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1937 states. [2024-09-12 17:54:57,336 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1937 to 1782. [2024-09-12 17:54:57,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1782 states, 1723 states have (on average 1.3012188044109112) internal successors, (2242), 1737 states have internal predecessors, (2242), 41 states have call successors, (41), 5 states have call predecessors, (41), 3 states have return successors, (39), 39 states have call predecessors, (39), 39 states have call successors, (39) [2024-09-12 17:54:57,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1782 states to 1782 states and 2322 transitions. [2024-09-12 17:54:57,342 INFO L78 Accepts]: Start accepts. Automaton has 1782 states and 2322 transitions. Word has length 67 [2024-09-12 17:54:57,342 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 17:54:57,342 INFO L474 AbstractCegarLoop]: Abstraction has 1782 states and 2322 transitions. [2024-09-12 17:54:57,342 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 19 states have (on average 4.052631578947368) internal successors, (77), 20 states have internal predecessors, (77), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 17:54:57,343 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 17:54:57,343 INFO L276 IsEmpty]: Start isEmpty. Operand 1782 states and 2322 transitions. [2024-09-12 17:54:57,343 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-09-12 17:54:57,344 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 17:54:57,344 INFO L216 NwaCegarLoop]: trace histogram [8, 8, 8, 3, 3, 3, 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] [2024-09-12 17:54:57,356 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2024-09-12 17:54:57,544 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31,17 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 17:54:57,544 INFO L399 AbstractCegarLoop]: === Iteration 33 === Targeting parse_expression_listErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, parse_expression_listErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 30 more)] === [2024-09-12 17:54:57,545 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 17:54:57,545 INFO L85 PathProgramCache]: Analyzing trace with hash -1049030000, now seen corresponding path program 1 times [2024-09-12 17:54:57,545 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 17:54:57,545 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1955603270] [2024-09-12 17:54:57,545 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 17:54:57,545 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 17:54:57,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:54:57,629 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 17:54:57,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:54:57,631 INFO L134 CoverageAnalysis]: Checked inductivity of 106 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 106 trivial. 0 not checked. [2024-09-12 17:54:57,631 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 17:54:57,631 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1955603270] [2024-09-12 17:54:57,631 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1955603270] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 17:54:57,632 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 17:54:57,632 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-09-12 17:54:57,632 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1110432102] [2024-09-12 17:54:57,632 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 17:54:57,634 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-12 17:54:57,634 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 17:54:57,634 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-12 17:54:57,635 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-09-12 17:54:57,635 INFO L87 Difference]: Start difference. First operand 1782 states and 2322 transitions. Second operand has 5 states, 5 states have (on average 6.8) internal successors, (34), 5 states have internal predecessors, (34), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 17:54:58,354 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 17:54:58,355 INFO L93 Difference]: Finished difference Result 2831 states and 3672 transitions. [2024-09-12 17:54:58,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-12 17:54:58,355 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.8) internal successors, (34), 5 states have internal predecessors, (34), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 68 [2024-09-12 17:54:58,356 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 17:54:58,369 INFO L225 Difference]: With dead ends: 2831 [2024-09-12 17:54:58,370 INFO L226 Difference]: Without dead ends: 2150 [2024-09-12 17:54:58,372 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-09-12 17:54:58,373 INFO L434 NwaCegarLoop]: 86 mSDtfsCounter, 45 mSDsluCounter, 136 mSDsCounter, 0 mSdLazyCounter, 121 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 222 SdHoareTripleChecker+Invalid, 123 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 121 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 17:54:58,374 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 222 Invalid, 123 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 121 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 17:54:58,375 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2150 states. [2024-09-12 17:54:58,761 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2150 to 1774. [2024-09-12 17:54:58,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1774 states, 1715 states have (on average 1.2886297376093294) internal successors, (2210), 1729 states have internal predecessors, (2210), 41 states have call successors, (41), 5 states have call predecessors, (41), 3 states have return successors, (39), 39 states have call predecessors, (39), 39 states have call successors, (39) [2024-09-12 17:54:58,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1774 states to 1774 states and 2290 transitions. [2024-09-12 17:54:58,766 INFO L78 Accepts]: Start accepts. Automaton has 1774 states and 2290 transitions. Word has length 68 [2024-09-12 17:54:58,766 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 17:54:58,766 INFO L474 AbstractCegarLoop]: Abstraction has 1774 states and 2290 transitions. [2024-09-12 17:54:58,766 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.8) internal successors, (34), 5 states have internal predecessors, (34), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 17:54:58,766 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 17:54:58,766 INFO L276 IsEmpty]: Start isEmpty. Operand 1774 states and 2290 transitions. [2024-09-12 17:54:58,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-09-12 17:54:58,767 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 17:54:58,767 INFO L216 NwaCegarLoop]: trace histogram [8, 8, 8, 3, 3, 3, 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] [2024-09-12 17:54:58,767 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2024-09-12 17:54:58,767 INFO L399 AbstractCegarLoop]: === Iteration 34 === Targeting parse_expression_listErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, parse_expression_listErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 30 more)] === [2024-09-12 17:54:58,767 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 17:54:58,768 INFO L85 PathProgramCache]: Analyzing trace with hash -1050877042, now seen corresponding path program 1 times [2024-09-12 17:54:58,768 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 17:54:58,768 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1584805288] [2024-09-12 17:54:58,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 17:54:58,768 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 17:54:58,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:54:58,912 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 17:54:58,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:54:58,914 INFO L134 CoverageAnalysis]: Checked inductivity of 106 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked. [2024-09-12 17:54:58,915 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 17:54:58,915 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1584805288] [2024-09-12 17:54:58,915 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1584805288] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 17:54:58,915 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [120656309] [2024-09-12 17:54:58,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 17:54:58,916 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 17:54:58,916 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 17:54:58,917 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 17:54:58,919 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2024-09-12 17:54:59,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:54:59,062 INFO L262 TraceCheckSpWp]: Trace formula consists of 261 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-09-12 17:54:59,063 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 17:54:59,245 INFO L134 CoverageAnalysis]: Checked inductivity of 106 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked. [2024-09-12 17:54:59,245 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 17:54:59,417 INFO L134 CoverageAnalysis]: Checked inductivity of 106 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked. [2024-09-12 17:54:59,417 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [120656309] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 17:54:59,418 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 17:54:59,418 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 25 [2024-09-12 17:54:59,418 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1581761176] [2024-09-12 17:54:59,418 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 17:54:59,418 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2024-09-12 17:54:59,418 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 17:54:59,419 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2024-09-12 17:54:59,419 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=145, Invalid=505, Unknown=0, NotChecked=0, Total=650 [2024-09-12 17:54:59,419 INFO L87 Difference]: Start difference. First operand 1774 states and 2290 transitions. Second operand has 26 states, 25 states have (on average 4.6) internal successors, (115), 26 states have internal predecessors, (115), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 17:55:00,764 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 17:55:00,764 INFO L93 Difference]: Finished difference Result 3656 states and 4745 transitions. [2024-09-12 17:55:00,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2024-09-12 17:55:00,765 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 25 states have (on average 4.6) internal successors, (115), 26 states have internal predecessors, (115), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 68 [2024-09-12 17:55:00,765 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 17:55:00,777 INFO L225 Difference]: With dead ends: 3656 [2024-09-12 17:55:00,778 INFO L226 Difference]: Without dead ends: 3651 [2024-09-12 17:55:00,780 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 153 GetRequests, 122 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 180 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=229, Invalid=827, Unknown=0, NotChecked=0, Total=1056 [2024-09-12 17:55:00,780 INFO L434 NwaCegarLoop]: 51 mSDtfsCounter, 524 mSDsluCounter, 615 mSDsCounter, 0 mSdLazyCounter, 1039 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 526 SdHoareTripleChecker+Valid, 666 SdHoareTripleChecker+Invalid, 1079 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 1039 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-09-12 17:55:00,780 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [526 Valid, 666 Invalid, 1079 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 1039 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-09-12 17:55:00,783 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3651 states. [2024-09-12 17:55:01,150 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3651 to 2140. [2024-09-12 17:55:01,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2140 states, 2084 states have (on average 1.271113243761996) internal successors, (2649), 2095 states have internal predecessors, (2649), 41 states have call successors, (41), 5 states have call predecessors, (41), 3 states have return successors, (39), 39 states have call predecessors, (39), 39 states have call successors, (39) [2024-09-12 17:55:01,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2140 states to 2140 states and 2729 transitions. [2024-09-12 17:55:01,158 INFO L78 Accepts]: Start accepts. Automaton has 2140 states and 2729 transitions. Word has length 68 [2024-09-12 17:55:01,158 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 17:55:01,158 INFO L474 AbstractCegarLoop]: Abstraction has 2140 states and 2729 transitions. [2024-09-12 17:55:01,158 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 25 states have (on average 4.6) internal successors, (115), 26 states have internal predecessors, (115), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 17:55:01,159 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 17:55:01,159 INFO L276 IsEmpty]: Start isEmpty. Operand 2140 states and 2729 transitions. [2024-09-12 17:55:01,160 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-09-12 17:55:01,160 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 17:55:01,160 INFO L216 NwaCegarLoop]: trace histogram [8, 8, 8, 3, 3, 3, 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] [2024-09-12 17:55:01,177 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Ended with exit code 0 [2024-09-12 17:55:01,360 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33,18 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 17:55:01,361 INFO L399 AbstractCegarLoop]: === Iteration 35 === Targeting parse_expression_listErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, parse_expression_listErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 30 more)] === [2024-09-12 17:55:01,361 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 17:55:01,361 INFO L85 PathProgramCache]: Analyzing trace with hash -276272046, now seen corresponding path program 1 times [2024-09-12 17:55:01,362 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 17:55:01,362 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1740162626] [2024-09-12 17:55:01,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 17:55:01,362 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 17:55:01,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:55:01,554 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 17:55:01,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:55:01,556 INFO L134 CoverageAnalysis]: Checked inductivity of 106 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked. [2024-09-12 17:55:01,556 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 17:55:01,556 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1740162626] [2024-09-12 17:55:01,556 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1740162626] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 17:55:01,557 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1441203757] [2024-09-12 17:55:01,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 17:55:01,557 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 17:55:01,557 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 17:55:01,559 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 17:55:01,561 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2024-09-12 17:55:01,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:55:01,701 INFO L262 TraceCheckSpWp]: Trace formula consists of 268 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-09-12 17:55:01,702 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 17:55:01,885 INFO L134 CoverageAnalysis]: Checked inductivity of 106 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked. [2024-09-12 17:55:01,885 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 17:55:02,059 INFO L134 CoverageAnalysis]: Checked inductivity of 106 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked. [2024-09-12 17:55:02,059 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1441203757] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 17:55:02,059 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 17:55:02,059 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 10] total 30 [2024-09-12 17:55:02,059 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1985556559] [2024-09-12 17:55:02,059 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 17:55:02,060 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2024-09-12 17:55:02,060 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 17:55:02,061 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2024-09-12 17:55:02,061 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=174, Invalid=756, Unknown=0, NotChecked=0, Total=930 [2024-09-12 17:55:02,061 INFO L87 Difference]: Start difference. First operand 2140 states and 2729 transitions. Second operand has 31 states, 30 states have (on average 4.033333333333333) internal successors, (121), 31 states have internal predecessors, (121), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 17:55:03,698 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 17:55:03,699 INFO L93 Difference]: Finished difference Result 3874 states and 4926 transitions. [2024-09-12 17:55:03,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2024-09-12 17:55:03,699 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 30 states have (on average 4.033333333333333) internal successors, (121), 31 states have internal predecessors, (121), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 70 [2024-09-12 17:55:03,699 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 17:55:03,709 INFO L225 Difference]: With dead ends: 3874 [2024-09-12 17:55:03,709 INFO L226 Difference]: Without dead ends: 3869 [2024-09-12 17:55:03,710 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 165 GetRequests, 123 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 434 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=344, Invalid=1548, Unknown=0, NotChecked=0, Total=1892 [2024-09-12 17:55:03,710 INFO L434 NwaCegarLoop]: 63 mSDtfsCounter, 664 mSDsluCounter, 695 mSDsCounter, 0 mSdLazyCounter, 1265 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 666 SdHoareTripleChecker+Valid, 758 SdHoareTripleChecker+Invalid, 1320 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 1265 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-09-12 17:55:03,711 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [666 Valid, 758 Invalid, 1320 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 1265 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-09-12 17:55:03,713 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3869 states. [2024-09-12 17:55:04,074 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3869 to 1938. [2024-09-12 17:55:04,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1938 states, 1903 states have (on average 1.283236994219653) internal successors, (2442), 1911 states have internal predecessors, (2442), 23 states have call successors, (23), 5 states have call predecessors, (23), 3 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2024-09-12 17:55:04,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1938 states to 1938 states and 2486 transitions. [2024-09-12 17:55:04,080 INFO L78 Accepts]: Start accepts. Automaton has 1938 states and 2486 transitions. Word has length 70 [2024-09-12 17:55:04,080 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 17:55:04,080 INFO L474 AbstractCegarLoop]: Abstraction has 1938 states and 2486 transitions. [2024-09-12 17:55:04,080 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 30 states have (on average 4.033333333333333) internal successors, (121), 31 states have internal predecessors, (121), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 17:55:04,081 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 17:55:04,081 INFO L276 IsEmpty]: Start isEmpty. Operand 1938 states and 2486 transitions. [2024-09-12 17:55:04,082 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2024-09-12 17:55:04,082 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 17:55:04,082 INFO L216 NwaCegarLoop]: trace histogram [8, 8, 8, 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, 1, 1, 1, 1, 1] [2024-09-12 17:55:04,095 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2024-09-12 17:55:04,283 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable34 [2024-09-12 17:55:04,283 INFO L399 AbstractCegarLoop]: === Iteration 36 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, parse_expression_listErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 30 more)] === [2024-09-12 17:55:04,283 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 17:55:04,283 INFO L85 PathProgramCache]: Analyzing trace with hash -1010145287, now seen corresponding path program 1 times [2024-09-12 17:55:04,283 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 17:55:04,283 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1362901223] [2024-09-12 17:55:04,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 17:55:04,284 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 17:55:04,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:55:04,372 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 17:55:04,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:55:04,374 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-09-12 17:55:04,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:55:04,376 INFO L134 CoverageAnalysis]: Checked inductivity of 92 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked. [2024-09-12 17:55:04,376 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 17:55:04,376 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1362901223] [2024-09-12 17:55:04,376 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1362901223] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 17:55:04,376 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 17:55:04,377 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-09-12 17:55:04,377 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2052141612] [2024-09-12 17:55:04,377 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 17:55:04,377 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-12 17:55:04,377 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 17:55:04,378 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-12 17:55:04,378 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-09-12 17:55:04,378 INFO L87 Difference]: Start difference. First operand 1938 states and 2486 transitions. Second operand has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-09-12 17:55:04,995 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 17:55:04,996 INFO L93 Difference]: Finished difference Result 1938 states and 2486 transitions. [2024-09-12 17:55:04,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-12 17:55:04,996 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 73 [2024-09-12 17:55:04,996 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 17:55:05,003 INFO L225 Difference]: With dead ends: 1938 [2024-09-12 17:55:05,003 INFO L226 Difference]: Without dead ends: 1936 [2024-09-12 17:55:05,004 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 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 17:55:05,004 INFO L434 NwaCegarLoop]: 69 mSDtfsCounter, 6 mSDsluCounter, 176 mSDsCounter, 0 mSdLazyCounter, 87 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 245 SdHoareTripleChecker+Invalid, 87 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 87 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 17:55:05,005 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 245 Invalid, 87 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 87 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 17:55:05,006 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1936 states. [2024-09-12 17:55:05,373 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1936 to 1936. [2024-09-12 17:55:05,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1936 states, 1902 states have (on average 1.2828601472134595) internal successors, (2440), 1909 states have internal predecessors, (2440), 23 states have call successors, (23), 5 states have call predecessors, (23), 3 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2024-09-12 17:55:05,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1936 states to 1936 states and 2484 transitions. [2024-09-12 17:55:05,382 INFO L78 Accepts]: Start accepts. Automaton has 1936 states and 2484 transitions. Word has length 73 [2024-09-12 17:55:05,383 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 17:55:05,383 INFO L474 AbstractCegarLoop]: Abstraction has 1936 states and 2484 transitions. [2024-09-12 17:55:05,383 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-09-12 17:55:05,383 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 17:55:05,384 INFO L276 IsEmpty]: Start isEmpty. Operand 1936 states and 2484 transitions. [2024-09-12 17:55:05,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2024-09-12 17:55:05,385 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 17:55:05,385 INFO L216 NwaCegarLoop]: trace histogram [8, 8, 8, 3, 3, 3, 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] [2024-09-12 17:55:05,385 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2024-09-12 17:55:05,386 INFO L399 AbstractCegarLoop]: === Iteration 37 === Targeting parse_expression_listErr15ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, parse_expression_listErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 30 more)] === [2024-09-12 17:55:05,386 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 17:55:05,386 INFO L85 PathProgramCache]: Analyzing trace with hash 368515604, now seen corresponding path program 1 times [2024-09-12 17:55:05,386 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 17:55:05,386 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [556662713] [2024-09-12 17:55:05,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 17:55:05,386 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 17:55:05,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:55:05,574 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 17:55:05,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:55:05,576 INFO L134 CoverageAnalysis]: Checked inductivity of 106 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked. [2024-09-12 17:55:05,576 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 17:55:05,577 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [556662713] [2024-09-12 17:55:05,577 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [556662713] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 17:55:05,577 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1152431121] [2024-09-12 17:55:05,577 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 17:55:05,577 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 17:55:05,577 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 17:55:05,579 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 17:55:05,580 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2024-09-12 17:55:05,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:55:05,725 INFO L262 TraceCheckSpWp]: Trace formula consists of 269 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-09-12 17:55:05,726 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 17:55:05,984 INFO L134 CoverageAnalysis]: Checked inductivity of 106 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked. [2024-09-12 17:55:05,985 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 17:55:06,223 INFO L134 CoverageAnalysis]: Checked inductivity of 106 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked. [2024-09-12 17:55:06,224 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1152431121] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 17:55:06,224 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 17:55:06,224 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 31 [2024-09-12 17:55:06,224 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [501737194] [2024-09-12 17:55:06,225 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 17:55:06,225 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2024-09-12 17:55:06,226 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 17:55:06,226 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2024-09-12 17:55:06,227 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=171, Invalid=821, Unknown=0, NotChecked=0, Total=992 [2024-09-12 17:55:06,227 INFO L87 Difference]: Start difference. First operand 1936 states and 2484 transitions. Second operand has 32 states, 31 states have (on average 4.096774193548387) internal successors, (127), 32 states have internal predecessors, (127), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 17:55:08,153 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 17:55:08,153 INFO L93 Difference]: Finished difference Result 3734 states and 4661 transitions. [2024-09-12 17:55:08,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2024-09-12 17:55:08,154 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 31 states have (on average 4.096774193548387) internal successors, (127), 32 states have internal predecessors, (127), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 72 [2024-09-12 17:55:08,154 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 17:55:08,165 INFO L225 Difference]: With dead ends: 3734 [2024-09-12 17:55:08,165 INFO L226 Difference]: Without dead ends: 3732 [2024-09-12 17:55:08,167 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 173 GetRequests, 126 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 481 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=388, Invalid=1964, Unknown=0, NotChecked=0, Total=2352 [2024-09-12 17:55:08,167 INFO L434 NwaCegarLoop]: 47 mSDtfsCounter, 763 mSDsluCounter, 619 mSDsCounter, 0 mSdLazyCounter, 1112 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 765 SdHoareTripleChecker+Valid, 666 SdHoareTripleChecker+Invalid, 1162 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 1112 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-09-12 17:55:08,167 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [765 Valid, 666 Invalid, 1162 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 1112 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-09-12 17:55:08,170 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3732 states. [2024-09-12 17:55:08,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3732 to 2100. [2024-09-12 17:55:08,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2100 states, 2066 states have (on average 1.2962245885769603) internal successors, (2678), 2073 states have internal predecessors, (2678), 23 states have call successors, (23), 5 states have call predecessors, (23), 3 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2024-09-12 17:55:08,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2100 states to 2100 states and 2722 transitions. [2024-09-12 17:55:08,706 INFO L78 Accepts]: Start accepts. Automaton has 2100 states and 2722 transitions. Word has length 72 [2024-09-12 17:55:08,706 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 17:55:08,706 INFO L474 AbstractCegarLoop]: Abstraction has 2100 states and 2722 transitions. [2024-09-12 17:55:08,706 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 31 states have (on average 4.096774193548387) internal successors, (127), 32 states have internal predecessors, (127), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 17:55:08,707 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 17:55:08,707 INFO L276 IsEmpty]: Start isEmpty. Operand 2100 states and 2722 transitions. [2024-09-12 17:55:08,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2024-09-12 17:55:08,708 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 17:55:08,708 INFO L216 NwaCegarLoop]: trace histogram [8, 8, 8, 7, 7, 7, 7, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 17:55:08,725 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Ended with exit code 0 [2024-09-12 17:55:08,912 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable36 [2024-09-12 17:55:08,913 INFO L399 AbstractCegarLoop]: === Iteration 38 === Targeting parse_expression_listErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, parse_expression_listErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 30 more)] === [2024-09-12 17:55:08,913 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 17:55:08,913 INFO L85 PathProgramCache]: Analyzing trace with hash -219821951, now seen corresponding path program 2 times [2024-09-12 17:55:08,913 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 17:55:08,913 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2066443322] [2024-09-12 17:55:08,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 17:55:08,913 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 17:55:08,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:55:09,114 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 17:55:09,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:55:09,117 INFO L134 CoverageAnalysis]: Checked inductivity of 197 backedges. 0 proven. 105 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked. [2024-09-12 17:55:09,117 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 17:55:09,117 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2066443322] [2024-09-12 17:55:09,117 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2066443322] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 17:55:09,117 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [253715512] [2024-09-12 17:55:09,118 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-12 17:55:09,118 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 17:55:09,118 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 17:55:09,119 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 17:55:09,122 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2024-09-12 17:55:09,281 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-09-12 17:55:09,282 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 17:55:09,286 INFO L262 TraceCheckSpWp]: Trace formula consists of 296 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-09-12 17:55:09,288 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 17:55:09,348 INFO L134 CoverageAnalysis]: Checked inductivity of 197 backedges. 0 proven. 105 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked. [2024-09-12 17:55:09,349 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 17:55:09,572 INFO L134 CoverageAnalysis]: Checked inductivity of 197 backedges. 0 proven. 105 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked. [2024-09-12 17:55:09,572 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [253715512] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 17:55:09,572 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 17:55:09,572 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15, 15] total 31 [2024-09-12 17:55:09,572 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [284675999] [2024-09-12 17:55:09,573 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 17:55:09,573 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2024-09-12 17:55:09,573 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 17:55:09,573 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2024-09-12 17:55:09,574 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=271, Invalid=721, Unknown=0, NotChecked=0, Total=992 [2024-09-12 17:55:09,574 INFO L87 Difference]: Start difference. First operand 2100 states and 2722 transitions. Second operand has 32 states, 31 states have (on average 3.225806451612903) internal successors, (100), 32 states have internal predecessors, (100), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 17:55:12,791 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 17:55:12,792 INFO L93 Difference]: Finished difference Result 8086 states and 9768 transitions. [2024-09-12 17:55:12,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2024-09-12 17:55:12,792 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 31 states have (on average 3.225806451612903) internal successors, (100), 32 states have internal predecessors, (100), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 73 [2024-09-12 17:55:12,792 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 17:55:12,810 INFO L225 Difference]: With dead ends: 8086 [2024-09-12 17:55:12,810 INFO L226 Difference]: Without dead ends: 8085 [2024-09-12 17:55:12,813 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 162 GetRequests, 132 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 295 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=271, Invalid=721, Unknown=0, NotChecked=0, Total=992 [2024-09-12 17:55:12,813 INFO L434 NwaCegarLoop]: 59 mSDtfsCounter, 1357 mSDsluCounter, 415 mSDsCounter, 0 mSdLazyCounter, 478 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1385 SdHoareTripleChecker+Valid, 474 SdHoareTripleChecker+Invalid, 499 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 478 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-09-12 17:55:12,814 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [1385 Valid, 474 Invalid, 499 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 478 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-09-12 17:55:12,819 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8085 states. [2024-09-12 17:55:13,489 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8085 to 2470. [2024-09-12 17:55:13,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2470 states, 2436 states have (on average 1.3087027914614122) internal successors, (3188), 2443 states have internal predecessors, (3188), 23 states have call successors, (23), 5 states have call predecessors, (23), 3 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2024-09-12 17:55:13,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2470 states to 2470 states and 3232 transitions. [2024-09-12 17:55:13,499 INFO L78 Accepts]: Start accepts. Automaton has 2470 states and 3232 transitions. Word has length 73 [2024-09-12 17:55:13,500 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 17:55:13,500 INFO L474 AbstractCegarLoop]: Abstraction has 2470 states and 3232 transitions. [2024-09-12 17:55:13,500 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 31 states have (on average 3.225806451612903) internal successors, (100), 32 states have internal predecessors, (100), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 17:55:13,500 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 17:55:13,500 INFO L276 IsEmpty]: Start isEmpty. Operand 2470 states and 3232 transitions. [2024-09-12 17:55:13,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2024-09-12 17:55:13,502 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 17:55:13,502 INFO L216 NwaCegarLoop]: trace histogram [8, 8, 8, 3, 3, 3, 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 17:55:13,521 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Ended with exit code 0 [2024-09-12 17:55:13,706 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable37 [2024-09-12 17:55:13,707 INFO L399 AbstractCegarLoop]: === Iteration 39 === Targeting parse_expression_listErr15ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, parse_expression_listErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 30 more)] === [2024-09-12 17:55:13,707 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 17:55:13,707 INFO L85 PathProgramCache]: Analyzing trace with hash -1108827944, now seen corresponding path program 1 times [2024-09-12 17:55:13,708 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 17:55:13,708 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [113273160] [2024-09-12 17:55:13,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 17:55:13,708 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 17:55:13,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:55:13,907 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 17:55:13,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:55:13,909 INFO L134 CoverageAnalysis]: Checked inductivity of 106 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked. [2024-09-12 17:55:13,909 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 17:55:13,909 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [113273160] [2024-09-12 17:55:13,909 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [113273160] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 17:55:13,909 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1138863472] [2024-09-12 17:55:13,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 17:55:13,910 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 17:55:13,910 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 17:55:13,911 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 17:55:13,913 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2024-09-12 17:55:14,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:55:14,066 INFO L262 TraceCheckSpWp]: Trace formula consists of 276 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-09-12 17:55:14,067 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 17:55:14,340 INFO L134 CoverageAnalysis]: Checked inductivity of 106 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked. [2024-09-12 17:55:14,340 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 17:55:14,593 INFO L134 CoverageAnalysis]: Checked inductivity of 106 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked. [2024-09-12 17:55:14,594 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1138863472] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 17:55:14,594 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 17:55:14,594 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13, 12] total 36 [2024-09-12 17:55:14,594 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1104869405] [2024-09-12 17:55:14,594 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 17:55:14,594 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 37 states [2024-09-12 17:55:14,594 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 17:55:14,595 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2024-09-12 17:55:14,595 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=200, Invalid=1132, Unknown=0, NotChecked=0, Total=1332 [2024-09-12 17:55:14,595 INFO L87 Difference]: Start difference. First operand 2470 states and 3232 transitions. Second operand has 37 states, 36 states have (on average 3.6944444444444446) internal successors, (133), 37 states have internal predecessors, (133), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 17:55:17,096 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 17:55:17,096 INFO L93 Difference]: Finished difference Result 5322 states and 6679 transitions. [2024-09-12 17:55:17,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2024-09-12 17:55:17,096 INFO L78 Accepts]: Start accepts. Automaton has has 37 states, 36 states have (on average 3.6944444444444446) internal successors, (133), 37 states have internal predecessors, (133), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 74 [2024-09-12 17:55:17,096 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 17:55:17,106 INFO L225 Difference]: With dead ends: 5322 [2024-09-12 17:55:17,107 INFO L226 Difference]: Without dead ends: 4125 [2024-09-12 17:55:17,111 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 185 GetRequests, 127 SyntacticMatches, 0 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 896 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=528, Invalid=3012, Unknown=0, NotChecked=0, Total=3540 [2024-09-12 17:55:17,111 INFO L434 NwaCegarLoop]: 67 mSDtfsCounter, 750 mSDsluCounter, 1057 mSDsCounter, 0 mSdLazyCounter, 2060 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 752 SdHoareTripleChecker+Valid, 1124 SdHoareTripleChecker+Invalid, 2107 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 2060 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-09-12 17:55:17,112 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [752 Valid, 1124 Invalid, 2107 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 2060 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-09-12 17:55:17,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4125 states. [2024-09-12 17:55:17,726 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4125 to 2389. [2024-09-12 17:55:17,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2389 states, 2355 states have (on average 1.305732484076433) internal successors, (3075), 2362 states have internal predecessors, (3075), 23 states have call successors, (23), 5 states have call predecessors, (23), 3 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2024-09-12 17:55:17,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2389 states to 2389 states and 3119 transitions. [2024-09-12 17:55:17,736 INFO L78 Accepts]: Start accepts. Automaton has 2389 states and 3119 transitions. Word has length 74 [2024-09-12 17:55:17,736 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 17:55:17,737 INFO L474 AbstractCegarLoop]: Abstraction has 2389 states and 3119 transitions. [2024-09-12 17:55:17,737 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 37 states, 36 states have (on average 3.6944444444444446) internal successors, (133), 37 states have internal predecessors, (133), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 17:55:17,737 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 17:55:17,737 INFO L276 IsEmpty]: Start isEmpty. Operand 2389 states and 3119 transitions. [2024-09-12 17:55:17,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-09-12 17:55:17,739 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 17:55:17,739 INFO L216 NwaCegarLoop]: trace histogram [8, 8, 8, 3, 3, 3, 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] [2024-09-12 17:55:17,756 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Ended with exit code 0 [2024-09-12 17:55:17,943 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable38 [2024-09-12 17:55:17,944 INFO L399 AbstractCegarLoop]: === Iteration 40 === Targeting parse_expression_listErr15ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, parse_expression_listErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 30 more)] === [2024-09-12 17:55:17,944 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 17:55:17,944 INFO L85 PathProgramCache]: Analyzing trace with hash -1908507681, now seen corresponding path program 1 times [2024-09-12 17:55:17,944 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 17:55:17,945 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [869147343] [2024-09-12 17:55:17,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 17:55:17,945 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 17:55:17,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:55:18,103 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 17:55:18,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:55:18,105 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 4 proven. 15 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked. [2024-09-12 17:55:18,105 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 17:55:18,105 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [869147343] [2024-09-12 17:55:18,105 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [869147343] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 17:55:18,105 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [258088315] [2024-09-12 17:55:18,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 17:55:18,105 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 17:55:18,106 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 17:55:18,107 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 17:55:18,109 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2024-09-12 17:55:18,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:55:18,267 INFO L262 TraceCheckSpWp]: Trace formula consists of 277 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-09-12 17:55:18,268 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 17:55:18,303 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 4 proven. 15 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked. [2024-09-12 17:55:18,303 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 17:55:18,393 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 4 proven. 15 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked. [2024-09-12 17:55:18,393 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [258088315] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 17:55:18,393 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 17:55:18,393 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13, 13] total 13 [2024-09-12 17:55:18,393 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [111813627] [2024-09-12 17:55:18,394 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 17:55:18,394 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-09-12 17:55:18,394 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 17:55:18,394 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-09-12 17:55:18,394 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2024-09-12 17:55:18,395 INFO L87 Difference]: Start difference. First operand 2389 states and 3119 transitions. Second operand has 13 states, 13 states have (on average 4.0) internal successors, (52), 13 states have internal predecessors, (52), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 17:55:19,198 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 17:55:19,198 INFO L93 Difference]: Finished difference Result 3414 states and 4381 transitions. [2024-09-12 17:55:19,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-09-12 17:55:19,199 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 4.0) internal successors, (52), 13 states have internal predecessors, (52), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 77 [2024-09-12 17:55:19,199 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 17:55:19,203 INFO L225 Difference]: With dead ends: 3414 [2024-09-12 17:55:19,203 INFO L226 Difference]: Without dead ends: 2455 [2024-09-12 17:55:19,205 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 177 GetRequests, 147 SyntacticMatches, 10 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 103 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=107, Invalid=355, Unknown=0, NotChecked=0, Total=462 [2024-09-12 17:55:19,205 INFO L434 NwaCegarLoop]: 49 mSDtfsCounter, 342 mSDsluCounter, 444 mSDsCounter, 0 mSdLazyCounter, 466 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 344 SdHoareTripleChecker+Valid, 493 SdHoareTripleChecker+Invalid, 487 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 466 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 17:55:19,206 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [344 Valid, 493 Invalid, 487 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 466 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 17:55:19,207 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2455 states. [2024-09-12 17:55:19,709 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2455 to 2368. [2024-09-12 17:55:19,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2368 states, 2334 states have (on average 1.3041988003427591) internal successors, (3044), 2341 states have internal predecessors, (3044), 23 states have call successors, (23), 5 states have call predecessors, (23), 3 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2024-09-12 17:55:19,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2368 states to 2368 states and 3088 transitions. [2024-09-12 17:55:19,719 INFO L78 Accepts]: Start accepts. Automaton has 2368 states and 3088 transitions. Word has length 77 [2024-09-12 17:55:19,720 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 17:55:19,720 INFO L474 AbstractCegarLoop]: Abstraction has 2368 states and 3088 transitions. [2024-09-12 17:55:19,720 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 4.0) internal successors, (52), 13 states have internal predecessors, (52), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 17:55:19,720 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 17:55:19,721 INFO L276 IsEmpty]: Start isEmpty. Operand 2368 states and 3088 transitions. [2024-09-12 17:55:19,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2024-09-12 17:55:19,722 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 17:55:19,722 INFO L216 NwaCegarLoop]: trace histogram [8, 8, 8, 4, 4, 4, 3, 3, 3, 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 17:55:19,735 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Forceful destruction successful, exit code 0 [2024-09-12 17:55:19,923 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable39 [2024-09-12 17:55:19,923 INFO L399 AbstractCegarLoop]: === Iteration 41 === Targeting parse_expression_listErr15ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, parse_expression_listErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 30 more)] === [2024-09-12 17:55:19,923 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 17:55:19,923 INFO L85 PathProgramCache]: Analyzing trace with hash -2116280227, now seen corresponding path program 1 times [2024-09-12 17:55:19,924 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 17:55:19,924 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1628575171] [2024-09-12 17:55:19,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 17:55:19,924 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 17:55:19,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:55:20,128 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 17:55:20,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:55:20,130 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked. [2024-09-12 17:55:20,130 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 17:55:20,130 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1628575171] [2024-09-12 17:55:20,131 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1628575171] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 17:55:20,131 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1551437655] [2024-09-12 17:55:20,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 17:55:20,132 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 17:55:20,132 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 17:55:20,134 INFO L229 MonitoredProcess]: Starting monitored process 24 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 17:55:20,135 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2024-09-12 17:55:20,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:55:20,301 INFO L262 TraceCheckSpWp]: Trace formula consists of 283 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-09-12 17:55:20,302 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 17:55:20,550 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked. [2024-09-12 17:55:20,550 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 17:55:20,772 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked. [2024-09-12 17:55:20,773 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1551437655] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 17:55:20,773 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 17:55:20,773 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13, 12] total 36 [2024-09-12 17:55:20,773 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [304835553] [2024-09-12 17:55:20,773 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 17:55:20,773 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 37 states [2024-09-12 17:55:20,773 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 17:55:20,774 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2024-09-12 17:55:20,774 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=252, Invalid=1080, Unknown=0, NotChecked=0, Total=1332 [2024-09-12 17:55:20,774 INFO L87 Difference]: Start difference. First operand 2368 states and 3088 transitions. Second operand has 37 states, 36 states have (on average 4.027777777777778) internal successors, (145), 37 states have internal predecessors, (145), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 17:55:23,246 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 17:55:23,246 INFO L93 Difference]: Finished difference Result 4564 states and 5687 transitions. [2024-09-12 17:55:23,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2024-09-12 17:55:23,246 INFO L78 Accepts]: Start accepts. Automaton has has 37 states, 36 states have (on average 4.027777777777778) internal successors, (145), 37 states have internal predecessors, (145), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 78 [2024-09-12 17:55:23,247 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 17:55:23,256 INFO L225 Difference]: With dead ends: 4564 [2024-09-12 17:55:23,256 INFO L226 Difference]: Without dead ends: 4562 [2024-09-12 17:55:23,258 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 186 GetRequests, 135 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 675 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=486, Invalid=2270, Unknown=0, NotChecked=0, Total=2756 [2024-09-12 17:55:23,258 INFO L434 NwaCegarLoop]: 86 mSDtfsCounter, 861 mSDsluCounter, 1039 mSDsCounter, 0 mSdLazyCounter, 1962 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 863 SdHoareTripleChecker+Valid, 1125 SdHoareTripleChecker+Invalid, 1999 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 1962 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-09-12 17:55:23,258 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [863 Valid, 1125 Invalid, 1999 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 1962 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-09-12 17:55:23,261 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4562 states. [2024-09-12 17:55:23,887 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4562 to 2332. [2024-09-12 17:55:23,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2332 states, 2298 states have (on average 1.313751087902524) internal successors, (3019), 2305 states have internal predecessors, (3019), 23 states have call successors, (23), 5 states have call predecessors, (23), 3 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2024-09-12 17:55:23,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2332 states to 2332 states and 3063 transitions. [2024-09-12 17:55:23,895 INFO L78 Accepts]: Start accepts. Automaton has 2332 states and 3063 transitions. Word has length 78 [2024-09-12 17:55:23,895 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 17:55:23,895 INFO L474 AbstractCegarLoop]: Abstraction has 2332 states and 3063 transitions. [2024-09-12 17:55:23,896 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 37 states, 36 states have (on average 4.027777777777778) internal successors, (145), 37 states have internal predecessors, (145), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 17:55:23,896 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 17:55:23,896 INFO L276 IsEmpty]: Start isEmpty. Operand 2332 states and 3063 transitions. [2024-09-12 17:55:23,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2024-09-12 17:55:23,898 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 17:55:23,898 INFO L216 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 17:55:23,911 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Forceful destruction successful, exit code 0 [2024-09-12 17:55:24,098 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable40 [2024-09-12 17:55:24,099 INFO L399 AbstractCegarLoop]: === Iteration 42 === Targeting parse_expression_listErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, parse_expression_listErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 30 more)] === [2024-09-12 17:55:24,099 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 17:55:24,099 INFO L85 PathProgramCache]: Analyzing trace with hash 186263602, now seen corresponding path program 3 times [2024-09-12 17:55:24,099 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 17:55:24,100 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1458953795] [2024-09-12 17:55:24,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 17:55:24,100 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 17:55:24,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:55:24,339 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 17:55:24,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:55:24,342 INFO L134 CoverageAnalysis]: Checked inductivity of 218 backedges. 0 proven. 126 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked. [2024-09-12 17:55:24,342 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 17:55:24,342 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1458953795] [2024-09-12 17:55:24,342 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1458953795] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 17:55:24,342 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [183332263] [2024-09-12 17:55:24,342 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-09-12 17:55:24,342 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 17:55:24,343 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 17:55:24,344 INFO L229 MonitoredProcess]: Starting monitored process 25 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 17:55:24,346 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2024-09-12 17:55:24,487 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2024-09-12 17:55:24,487 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 17:55:24,488 INFO L262 TraceCheckSpWp]: Trace formula consists of 193 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-09-12 17:55:24,490 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 17:55:24,662 INFO L134 CoverageAnalysis]: Checked inductivity of 218 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 197 trivial. 0 not checked. [2024-09-12 17:55:24,663 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 17:55:24,663 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [183332263] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 17:55:24,663 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-09-12 17:55:24,663 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [17] total 25 [2024-09-12 17:55:24,663 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1001417908] [2024-09-12 17:55:24,663 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 17:55:24,663 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-09-12 17:55:24,664 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 17:55:24,664 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-09-12 17:55:24,664 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=128, Invalid=472, Unknown=0, NotChecked=0, Total=600 [2024-09-12 17:55:24,664 INFO L87 Difference]: Start difference. First operand 2332 states and 3063 transitions. Second operand has 9 states, 9 states have (on average 2.888888888888889) internal successors, (26), 8 states have internal predecessors, (26), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 17:55:25,348 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 17:55:25,348 INFO L93 Difference]: Finished difference Result 3306 states and 4302 transitions. [2024-09-12 17:55:25,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-09-12 17:55:25,349 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 2.888888888888889) internal successors, (26), 8 states have internal predecessors, (26), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 80 [2024-09-12 17:55:25,349 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 17:55:25,353 INFO L225 Difference]: With dead ends: 3306 [2024-09-12 17:55:25,353 INFO L226 Difference]: Without dead ends: 2143 [2024-09-12 17:55:25,355 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 75 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 187 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=190, Invalid=680, Unknown=0, NotChecked=0, Total=870 [2024-09-12 17:55:25,356 INFO L434 NwaCegarLoop]: 74 mSDtfsCounter, 77 mSDsluCounter, 329 mSDsCounter, 0 mSdLazyCounter, 221 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 79 SdHoareTripleChecker+Valid, 403 SdHoareTripleChecker+Invalid, 223 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 221 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 17:55:25,356 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [79 Valid, 403 Invalid, 223 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 221 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 17:55:25,357 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2143 states. [2024-09-12 17:55:25,799 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2143 to 2143. [2024-09-12 17:55:25,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2143 states, 2111 states have (on average 1.3126480341070583) internal successors, (2771), 2118 states have internal predecessors, (2771), 21 states have call successors, (21), 5 states have call predecessors, (21), 3 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2024-09-12 17:55:25,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2143 states to 2143 states and 2811 transitions. [2024-09-12 17:55:25,806 INFO L78 Accepts]: Start accepts. Automaton has 2143 states and 2811 transitions. Word has length 80 [2024-09-12 17:55:25,807 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 17:55:25,807 INFO L474 AbstractCegarLoop]: Abstraction has 2143 states and 2811 transitions. [2024-09-12 17:55:25,807 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 2.888888888888889) internal successors, (26), 8 states have internal predecessors, (26), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 17:55:25,807 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 17:55:25,807 INFO L276 IsEmpty]: Start isEmpty. Operand 2143 states and 2811 transitions. [2024-09-12 17:55:25,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-09-12 17:55:25,808 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 17:55:25,808 INFO L216 NwaCegarLoop]: trace histogram [8, 8, 8, 4, 4, 4, 3, 3, 3, 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] [2024-09-12 17:55:25,820 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Forceful destruction successful, exit code 0 [2024-09-12 17:55:26,008 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41,25 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 17:55:26,009 INFO L399 AbstractCegarLoop]: === Iteration 43 === Targeting parse_expression_listErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, parse_expression_listErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 30 more)] === [2024-09-12 17:55:26,009 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 17:55:26,009 INFO L85 PathProgramCache]: Analyzing trace with hash 1443486196, now seen corresponding path program 1 times [2024-09-12 17:55:26,009 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 17:55:26,009 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2057354994] [2024-09-12 17:55:26,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 17:55:26,009 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 17:55:26,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:55:26,224 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 17:55:26,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:55:26,226 INFO L134 CoverageAnalysis]: Checked inductivity of 127 backedges. 5 proven. 30 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked. [2024-09-12 17:55:26,226 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 17:55:26,226 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2057354994] [2024-09-12 17:55:26,227 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2057354994] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 17:55:26,227 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1975437959] [2024-09-12 17:55:26,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 17:55:26,227 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 17:55:26,227 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 17:55:26,229 INFO L229 MonitoredProcess]: Starting monitored process 26 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 17:55:26,230 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2024-09-12 17:55:26,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:55:26,386 INFO L262 TraceCheckSpWp]: Trace formula consists of 288 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-09-12 17:55:26,388 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 17:55:26,671 INFO L134 CoverageAnalysis]: Checked inductivity of 127 backedges. 5 proven. 30 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked. [2024-09-12 17:55:26,671 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 17:55:26,906 INFO L134 CoverageAnalysis]: Checked inductivity of 127 backedges. 5 proven. 30 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked. [2024-09-12 17:55:26,906 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1975437959] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 17:55:26,907 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 17:55:26,907 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13, 13] total 37 [2024-09-12 17:55:26,907 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [817531004] [2024-09-12 17:55:26,907 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 17:55:26,907 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 38 states [2024-09-12 17:55:26,907 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 17:55:26,908 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2024-09-12 17:55:26,908 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=245, Invalid=1161, Unknown=0, NotChecked=0, Total=1406 [2024-09-12 17:55:26,908 INFO L87 Difference]: Start difference. First operand 2143 states and 2811 transitions. Second operand has 38 states, 37 states have (on average 4.162162162162162) internal successors, (154), 38 states have internal predecessors, (154), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 17:55:29,307 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 17:55:29,307 INFO L93 Difference]: Finished difference Result 4069 states and 5132 transitions. [2024-09-12 17:55:29,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2024-09-12 17:55:29,308 INFO L78 Accepts]: Start accepts. Automaton has has 38 states, 37 states have (on average 4.162162162162162) internal successors, (154), 38 states have internal predecessors, (154), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 81 [2024-09-12 17:55:29,308 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 17:55:29,315 INFO L225 Difference]: With dead ends: 4069 [2024-09-12 17:55:29,315 INFO L226 Difference]: Without dead ends: 4067 [2024-09-12 17:55:29,316 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 193 GetRequests, 140 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 630 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=479, Invalid=2491, Unknown=0, NotChecked=0, Total=2970 [2024-09-12 17:55:29,317 INFO L434 NwaCegarLoop]: 47 mSDtfsCounter, 798 mSDsluCounter, 598 mSDsCounter, 0 mSdLazyCounter, 1111 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 800 SdHoareTripleChecker+Valid, 645 SdHoareTripleChecker+Invalid, 1178 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 1111 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-09-12 17:55:29,317 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [800 Valid, 645 Invalid, 1178 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [67 Valid, 1111 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-09-12 17:55:29,319 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4067 states. [2024-09-12 17:55:29,900 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4067 to 2390. [2024-09-12 17:55:29,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2390 states, 2358 states have (on average 1.310008481764207) internal successors, (3089), 2365 states have internal predecessors, (3089), 21 states have call successors, (21), 5 states have call predecessors, (21), 3 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2024-09-12 17:55:29,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2390 states to 2390 states and 3129 transitions. [2024-09-12 17:55:29,907 INFO L78 Accepts]: Start accepts. Automaton has 2390 states and 3129 transitions. Word has length 81 [2024-09-12 17:55:29,907 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 17:55:29,907 INFO L474 AbstractCegarLoop]: Abstraction has 2390 states and 3129 transitions. [2024-09-12 17:55:29,907 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 38 states, 37 states have (on average 4.162162162162162) internal successors, (154), 38 states have internal predecessors, (154), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 17:55:29,907 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 17:55:29,907 INFO L276 IsEmpty]: Start isEmpty. Operand 2390 states and 3129 transitions. [2024-09-12 17:55:29,909 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2024-09-12 17:55:29,909 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 17:55:29,909 INFO L216 NwaCegarLoop]: trace histogram [8, 8, 8, 4, 4, 4, 3, 3, 3, 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] [2024-09-12 17:55:29,923 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Ended with exit code 0 [2024-09-12 17:55:30,109 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable42 [2024-09-12 17:55:30,110 INFO L399 AbstractCegarLoop]: === Iteration 44 === Targeting parse_expression_listErr15ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, parse_expression_listErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 30 more)] === [2024-09-12 17:55:30,110 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 17:55:30,110 INFO L85 PathProgramCache]: Analyzing trace with hash 81161594, now seen corresponding path program 1 times [2024-09-12 17:55:30,110 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 17:55:30,110 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1683411684] [2024-09-12 17:55:30,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 17:55:30,111 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 17:55:30,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:55:30,385 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 17:55:30,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:55:30,387 INFO L134 CoverageAnalysis]: Checked inductivity of 127 backedges. 5 proven. 30 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked. [2024-09-12 17:55:30,387 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 17:55:30,387 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1683411684] [2024-09-12 17:55:30,387 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1683411684] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 17:55:30,387 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [671368496] [2024-09-12 17:55:30,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 17:55:30,387 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 17:55:30,388 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 17:55:30,389 INFO L229 MonitoredProcess]: Starting monitored process 27 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 17:55:30,392 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process [2024-09-12 17:55:30,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:55:30,545 INFO L262 TraceCheckSpWp]: Trace formula consists of 296 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-09-12 17:55:30,546 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 17:55:30,831 INFO L134 CoverageAnalysis]: Checked inductivity of 127 backedges. 5 proven. 30 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked. [2024-09-12 17:55:30,831 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 17:55:31,119 INFO L134 CoverageAnalysis]: Checked inductivity of 127 backedges. 5 proven. 30 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked. [2024-09-12 17:55:31,119 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [671368496] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 17:55:31,119 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 17:55:31,119 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15, 15] total 43 [2024-09-12 17:55:31,120 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [351876120] [2024-09-12 17:55:31,120 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 17:55:31,120 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 44 states [2024-09-12 17:55:31,120 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 17:55:31,120 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 44 interpolants. [2024-09-12 17:55:31,121 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=279, Invalid=1613, Unknown=0, NotChecked=0, Total=1892 [2024-09-12 17:55:31,121 INFO L87 Difference]: Start difference. First operand 2390 states and 3129 transitions. Second operand has 44 states, 43 states have (on average 3.86046511627907) internal successors, (166), 44 states have internal predecessors, (166), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 17:55:33,873 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 17:55:33,873 INFO L93 Difference]: Finished difference Result 4157 states and 5221 transitions. [2024-09-12 17:55:33,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2024-09-12 17:55:33,874 INFO L78 Accepts]: Start accepts. Automaton has has 44 states, 43 states have (on average 3.86046511627907) internal successors, (166), 44 states have internal predecessors, (166), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 85 [2024-09-12 17:55:33,874 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 17:55:33,883 INFO L225 Difference]: With dead ends: 4157 [2024-09-12 17:55:33,883 INFO L226 Difference]: Without dead ends: 4155 [2024-09-12 17:55:33,885 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 215 GetRequests, 144 SyntacticMatches, 0 SemanticMatches, 71 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1237 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=714, Invalid=4542, Unknown=0, NotChecked=0, Total=5256 [2024-09-12 17:55:33,885 INFO L434 NwaCegarLoop]: 45 mSDtfsCounter, 1006 mSDsluCounter, 569 mSDsCounter, 0 mSdLazyCounter, 1254 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1008 SdHoareTripleChecker+Valid, 614 SdHoareTripleChecker+Invalid, 1319 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 1254 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-09-12 17:55:33,886 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [1008 Valid, 614 Invalid, 1319 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 1254 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-09-12 17:55:33,887 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4155 states. [2024-09-12 17:55:34,471 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4155 to 2369. [2024-09-12 17:55:34,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2369 states, 2337 states have (on average 1.3097988874625588) internal successors, (3061), 2344 states have internal predecessors, (3061), 21 states have call successors, (21), 5 states have call predecessors, (21), 3 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2024-09-12 17:55:34,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2369 states to 2369 states and 3101 transitions. [2024-09-12 17:55:34,480 INFO L78 Accepts]: Start accepts. Automaton has 2369 states and 3101 transitions. Word has length 85 [2024-09-12 17:55:34,480 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 17:55:34,480 INFO L474 AbstractCegarLoop]: Abstraction has 2369 states and 3101 transitions. [2024-09-12 17:55:34,480 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 44 states, 43 states have (on average 3.86046511627907) internal successors, (166), 44 states have internal predecessors, (166), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 17:55:34,480 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 17:55:34,481 INFO L276 IsEmpty]: Start isEmpty. Operand 2369 states and 3101 transitions. [2024-09-12 17:55:34,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2024-09-12 17:55:34,482 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 17:55:34,482 INFO L216 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 7, 7, 7, 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 17:55:34,500 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Forceful destruction successful, exit code 0 [2024-09-12 17:55:34,683 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43,27 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 17:55:34,683 INFO L399 AbstractCegarLoop]: === Iteration 45 === Targeting parse_expression_listErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, parse_expression_listErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 30 more)] === [2024-09-12 17:55:34,683 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 17:55:34,683 INFO L85 PathProgramCache]: Analyzing trace with hash -291415205, now seen corresponding path program 1 times [2024-09-12 17:55:34,683 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 17:55:34,683 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1577150820] [2024-09-12 17:55:34,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 17:55:34,684 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 17:55:34,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:55:34,927 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 17:55:34,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:55:34,929 INFO L134 CoverageAnalysis]: Checked inductivity of 222 backedges. 0 proven. 126 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2024-09-12 17:55:34,929 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 17:55:34,929 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1577150820] [2024-09-12 17:55:34,929 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1577150820] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 17:55:34,930 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1236200331] [2024-09-12 17:55:34,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 17:55:34,930 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 17:55:34,930 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 17:55:34,932 INFO L229 MonitoredProcess]: Starting monitored process 28 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 17:55:34,933 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Waiting until timeout for monitored process [2024-09-12 17:55:35,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:55:35,129 INFO L262 TraceCheckSpWp]: Trace formula consists of 327 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-09-12 17:55:35,131 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 17:55:35,209 INFO L134 CoverageAnalysis]: Checked inductivity of 222 backedges. 0 proven. 126 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2024-09-12 17:55:35,209 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 17:55:35,469 INFO L134 CoverageAnalysis]: Checked inductivity of 222 backedges. 0 proven. 126 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2024-09-12 17:55:35,469 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1236200331] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 17:55:35,469 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 17:55:35,469 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 35 [2024-09-12 17:55:35,470 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [17957656] [2024-09-12 17:55:35,470 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 17:55:35,470 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2024-09-12 17:55:35,470 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 17:55:35,471 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2024-09-12 17:55:35,471 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=311, Invalid=949, Unknown=0, NotChecked=0, Total=1260 [2024-09-12 17:55:35,471 INFO L87 Difference]: Start difference. First operand 2369 states and 3101 transitions. Second operand has 36 states, 35 states have (on average 3.5142857142857142) internal successors, (123), 36 states have internal predecessors, (123), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 17:55:40,411 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 17:55:40,411 INFO L93 Difference]: Finished difference Result 8459 states and 10157 transitions. [2024-09-12 17:55:40,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2024-09-12 17:55:40,411 INFO L78 Accepts]: Start accepts. Automaton has has 36 states, 35 states have (on average 3.5142857142857142) internal successors, (123), 36 states have internal predecessors, (123), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 86 [2024-09-12 17:55:40,411 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 17:55:40,427 INFO L225 Difference]: With dead ends: 8459 [2024-09-12 17:55:40,427 INFO L226 Difference]: Without dead ends: 8458 [2024-09-12 17:55:40,430 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 190 GetRequests, 156 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 379 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=311, Invalid=949, Unknown=0, NotChecked=0, Total=1260 [2024-09-12 17:55:40,430 INFO L434 NwaCegarLoop]: 55 mSDtfsCounter, 1267 mSDsluCounter, 853 mSDsCounter, 0 mSdLazyCounter, 816 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1299 SdHoareTripleChecker+Valid, 908 SdHoareTripleChecker+Invalid, 836 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 816 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-09-12 17:55:40,430 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [1299 Valid, 908 Invalid, 836 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 816 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-09-12 17:55:40,435 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8458 states. [2024-09-12 17:55:41,110 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8458 to 2396. [2024-09-12 17:55:41,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2396 states, 2364 states have (on average 1.3138747884940778) internal successors, (3106), 2371 states have internal predecessors, (3106), 21 states have call successors, (21), 5 states have call predecessors, (21), 3 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2024-09-12 17:55:41,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2396 states to 2396 states and 3146 transitions. [2024-09-12 17:55:41,119 INFO L78 Accepts]: Start accepts. Automaton has 2396 states and 3146 transitions. Word has length 86 [2024-09-12 17:55:41,120 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 17:55:41,120 INFO L474 AbstractCegarLoop]: Abstraction has 2396 states and 3146 transitions. [2024-09-12 17:55:41,120 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 35 states have (on average 3.5142857142857142) internal successors, (123), 36 states have internal predecessors, (123), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 17:55:41,120 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 17:55:41,120 INFO L276 IsEmpty]: Start isEmpty. Operand 2396 states and 3146 transitions. [2024-09-12 17:55:41,122 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2024-09-12 17:55:41,122 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 17:55:41,122 INFO L216 NwaCegarLoop]: trace histogram [8, 8, 8, 5, 5, 5, 4, 4, 4, 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] [2024-09-12 17:55:41,140 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Ended with exit code 0 [2024-09-12 17:55:41,326 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44,28 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 17:55:41,326 INFO L399 AbstractCegarLoop]: === Iteration 46 === Targeting parse_expression_listErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, parse_expression_listErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 30 more)] === [2024-09-12 17:55:41,327 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 17:55:41,327 INFO L85 PathProgramCache]: Analyzing trace with hash -1350218969, now seen corresponding path program 1 times [2024-09-12 17:55:41,327 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 17:55:41,327 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [893044756] [2024-09-12 17:55:41,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 17:55:41,327 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 17:55:41,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:55:41,560 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 17:55:41,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:55:41,562 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 5 proven. 52 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked. [2024-09-12 17:55:41,562 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 17:55:41,562 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [893044756] [2024-09-12 17:55:41,562 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [893044756] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 17:55:41,562 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [846995615] [2024-09-12 17:55:41,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 17:55:41,562 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 17:55:41,562 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 17:55:41,565 INFO L229 MonitoredProcess]: Starting monitored process 29 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 17:55:41,566 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Waiting until timeout for monitored process [2024-09-12 17:55:41,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:55:41,743 INFO L262 TraceCheckSpWp]: Trace formula consists of 308 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-09-12 17:55:41,744 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 17:55:42,082 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 5 proven. 52 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked. [2024-09-12 17:55:42,082 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 17:55:42,419 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 5 proven. 52 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked. [2024-09-12 17:55:42,419 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [846995615] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 17:55:42,419 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 17:55:42,419 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 16] total 48 [2024-09-12 17:55:42,419 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1766956508] [2024-09-12 17:55:42,420 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 17:55:42,420 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 49 states [2024-09-12 17:55:42,420 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 17:55:42,421 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 49 interpolants. [2024-09-12 17:55:42,421 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=372, Invalid=1980, Unknown=0, NotChecked=0, Total=2352 [2024-09-12 17:55:42,422 INFO L87 Difference]: Start difference. First operand 2396 states and 3146 transitions. Second operand has 49 states, 48 states have (on average 3.7083333333333335) internal successors, (178), 49 states have internal predecessors, (178), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 17:55:46,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 17:55:46,151 INFO L93 Difference]: Finished difference Result 4868 states and 6069 transitions. [2024-09-12 17:55:46,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2024-09-12 17:55:46,152 INFO L78 Accepts]: Start accepts. Automaton has has 49 states, 48 states have (on average 3.7083333333333335) internal successors, (178), 49 states have internal predecessors, (178), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 89 [2024-09-12 17:55:46,152 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 17:55:46,159 INFO L225 Difference]: With dead ends: 4868 [2024-09-12 17:55:46,159 INFO L226 Difference]: Without dead ends: 4866 [2024-09-12 17:55:46,161 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 228 GetRequests, 149 SyntacticMatches, 0 SemanticMatches, 79 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1719 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=960, Invalid=5520, Unknown=0, NotChecked=0, Total=6480 [2024-09-12 17:55:46,161 INFO L434 NwaCegarLoop]: 61 mSDtfsCounter, 1305 mSDsluCounter, 766 mSDsCounter, 0 mSdLazyCounter, 1905 mSolverCounterSat, 79 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1307 SdHoareTripleChecker+Valid, 827 SdHoareTripleChecker+Invalid, 1984 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 79 IncrementalHoareTripleChecker+Valid, 1905 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-09-12 17:55:46,161 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [1307 Valid, 827 Invalid, 1984 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [79 Valid, 1905 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-09-12 17:55:46,163 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4866 states. [2024-09-12 17:55:46,934 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4866 to 2591. [2024-09-12 17:55:46,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2591 states, 2559 states have (on average 1.319265338022665) internal successors, (3376), 2566 states have internal predecessors, (3376), 21 states have call successors, (21), 5 states have call predecessors, (21), 3 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2024-09-12 17:55:46,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2591 states to 2591 states and 3416 transitions. [2024-09-12 17:55:46,942 INFO L78 Accepts]: Start accepts. Automaton has 2591 states and 3416 transitions. Word has length 89 [2024-09-12 17:55:46,942 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 17:55:46,943 INFO L474 AbstractCegarLoop]: Abstraction has 2591 states and 3416 transitions. [2024-09-12 17:55:46,943 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 49 states, 48 states have (on average 3.7083333333333335) internal successors, (178), 49 states have internal predecessors, (178), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 17:55:46,943 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 17:55:46,943 INFO L276 IsEmpty]: Start isEmpty. Operand 2591 states and 3416 transitions. [2024-09-12 17:55:46,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2024-09-12 17:55:46,945 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 17:55:46,945 INFO L216 NwaCegarLoop]: trace histogram [8, 8, 8, 5, 5, 5, 4, 4, 4, 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] [2024-09-12 17:55:46,964 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Ended with exit code 0 [2024-09-12 17:55:47,145 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable45 [2024-09-12 17:55:47,145 INFO L399 AbstractCegarLoop]: === Iteration 47 === Targeting parse_expression_listErr15ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, parse_expression_listErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 30 more)] === [2024-09-12 17:55:47,146 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 17:55:47,146 INFO L85 PathProgramCache]: Analyzing trace with hash -1386884723, now seen corresponding path program 2 times [2024-09-12 17:55:47,146 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 17:55:47,146 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [359908985] [2024-09-12 17:55:47,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 17:55:47,146 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 17:55:47,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:55:47,368 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 17:55:47,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:55:47,370 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 5 proven. 52 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked. [2024-09-12 17:55:47,370 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 17:55:47,370 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [359908985] [2024-09-12 17:55:47,371 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [359908985] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 17:55:47,371 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2100526927] [2024-09-12 17:55:47,371 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-12 17:55:47,371 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 17:55:47,371 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 17:55:47,372 INFO L229 MonitoredProcess]: Starting monitored process 30 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 17:55:47,373 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Waiting until timeout for monitored process [2024-09-12 17:55:47,536 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-09-12 17:55:47,536 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 17:55:47,537 INFO L262 TraceCheckSpWp]: Trace formula consists of 303 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-09-12 17:55:47,538 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 17:55:47,820 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 5 proven. 52 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked. [2024-09-12 17:55:47,820 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 17:55:48,123 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 5 proven. 52 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked. [2024-09-12 17:55:48,123 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2100526927] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 17:55:48,123 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 17:55:48,123 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15, 15] total 43 [2024-09-12 17:55:48,123 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2014284135] [2024-09-12 17:55:48,123 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 17:55:48,124 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 44 states [2024-09-12 17:55:48,124 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 17:55:48,124 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 44 interpolants. [2024-09-12 17:55:48,125 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=335, Invalid=1557, Unknown=0, NotChecked=0, Total=1892 [2024-09-12 17:55:48,125 INFO L87 Difference]: Start difference. First operand 2591 states and 3416 transitions. Second operand has 44 states, 43 states have (on average 4.1395348837209305) internal successors, (178), 44 states have internal predecessors, (178), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 17:55:51,415 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 17:55:51,416 INFO L93 Difference]: Finished difference Result 4650 states and 5834 transitions. [2024-09-12 17:55:51,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2024-09-12 17:55:51,416 INFO L78 Accepts]: Start accepts. Automaton has has 44 states, 43 states have (on average 4.1395348837209305) internal successors, (178), 44 states have internal predecessors, (178), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 89 [2024-09-12 17:55:51,416 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 17:55:51,425 INFO L225 Difference]: With dead ends: 4650 [2024-09-12 17:55:51,425 INFO L226 Difference]: Without dead ends: 4648 [2024-09-12 17:55:51,426 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 223 GetRequests, 152 SyntacticMatches, 0 SemanticMatches, 71 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1170 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=846, Invalid=4410, Unknown=0, NotChecked=0, Total=5256 [2024-09-12 17:55:51,427 INFO L434 NwaCegarLoop]: 47 mSDtfsCounter, 1146 mSDsluCounter, 554 mSDsCounter, 0 mSdLazyCounter, 1077 mSolverCounterSat, 85 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1148 SdHoareTripleChecker+Valid, 601 SdHoareTripleChecker+Invalid, 1162 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 85 IncrementalHoareTripleChecker+Valid, 1077 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-09-12 17:55:51,427 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [1148 Valid, 601 Invalid, 1162 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [85 Valid, 1077 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-09-12 17:55:51,429 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4648 states. [2024-09-12 17:55:52,216 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4648 to 2448. [2024-09-12 17:55:52,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2448 states, 2416 states have (on average 1.3158112582781456) internal successors, (3179), 2423 states have internal predecessors, (3179), 21 states have call successors, (21), 5 states have call predecessors, (21), 3 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2024-09-12 17:55:52,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2448 states to 2448 states and 3219 transitions. [2024-09-12 17:55:52,224 INFO L78 Accepts]: Start accepts. Automaton has 2448 states and 3219 transitions. Word has length 89 [2024-09-12 17:55:52,224 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 17:55:52,224 INFO L474 AbstractCegarLoop]: Abstraction has 2448 states and 3219 transitions. [2024-09-12 17:55:52,224 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 44 states, 43 states have (on average 4.1395348837209305) internal successors, (178), 44 states have internal predecessors, (178), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 17:55:52,225 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 17:55:52,225 INFO L276 IsEmpty]: Start isEmpty. Operand 2448 states and 3219 transitions. [2024-09-12 17:55:52,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2024-09-12 17:55:52,226 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 17:55:52,227 INFO L216 NwaCegarLoop]: trace histogram [8, 8, 8, 5, 5, 5, 4, 4, 4, 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 17:55:52,244 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Ended with exit code 0 [2024-09-12 17:55:52,427 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable46 [2024-09-12 17:55:52,427 INFO L399 AbstractCegarLoop]: === Iteration 48 === Targeting parse_expression_listErr15ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, parse_expression_listErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 30 more)] === [2024-09-12 17:55:52,428 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 17:55:52,428 INFO L85 PathProgramCache]: Analyzing trace with hash 1677724973, now seen corresponding path program 1 times [2024-09-12 17:55:52,428 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 17:55:52,428 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [689412585] [2024-09-12 17:55:52,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 17:55:52,428 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 17:55:52,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:55:52,693 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 17:55:52,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:55:52,695 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 5 proven. 52 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked. [2024-09-12 17:55:52,695 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 17:55:52,695 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [689412585] [2024-09-12 17:55:52,695 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [689412585] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 17:55:52,695 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1855511688] [2024-09-12 17:55:52,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 17:55:52,696 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 17:55:52,696 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 17:55:52,697 INFO L229 MonitoredProcess]: Starting monitored process 31 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 17:55:52,698 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Waiting until timeout for monitored process [2024-09-12 17:55:52,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:55:52,869 INFO L262 TraceCheckSpWp]: Trace formula consists of 316 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-09-12 17:55:52,870 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 17:55:53,277 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 5 proven. 52 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked. [2024-09-12 17:55:53,277 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 17:55:53,674 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 5 proven. 52 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked. [2024-09-12 17:55:53,674 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1855511688] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 17:55:53,674 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 17:55:53,674 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 19, 18] total 54 [2024-09-12 17:55:53,674 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1636859588] [2024-09-12 17:55:53,675 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 17:55:53,675 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 55 states [2024-09-12 17:55:53,675 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 17:55:53,676 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 55 interpolants. [2024-09-12 17:55:53,676 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=406, Invalid=2564, Unknown=0, NotChecked=0, Total=2970 [2024-09-12 17:55:53,677 INFO L87 Difference]: Start difference. First operand 2448 states and 3219 transitions. Second operand has 55 states, 54 states have (on average 3.5185185185185186) internal successors, (190), 55 states have internal predecessors, (190), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 17:55:58,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 17:55:58,586 INFO L93 Difference]: Finished difference Result 4896 states and 6054 transitions. [2024-09-12 17:55:58,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 81 states. [2024-09-12 17:55:58,587 INFO L78 Accepts]: Start accepts. Automaton has has 55 states, 54 states have (on average 3.5185185185185186) internal successors, (190), 55 states have internal predecessors, (190), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 93 [2024-09-12 17:55:58,587 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 17:55:58,594 INFO L225 Difference]: With dead ends: 4896 [2024-09-12 17:55:58,594 INFO L226 Difference]: Without dead ends: 4894 [2024-09-12 17:55:58,597 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 257 GetRequests, 153 SyntacticMatches, 0 SemanticMatches, 104 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3183 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=1459, Invalid=9671, Unknown=0, NotChecked=0, Total=11130 [2024-09-12 17:55:58,597 INFO L434 NwaCegarLoop]: 62 mSDtfsCounter, 1325 mSDsluCounter, 931 mSDsCounter, 0 mSdLazyCounter, 2426 mSolverCounterSat, 73 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1327 SdHoareTripleChecker+Valid, 993 SdHoareTripleChecker+Invalid, 2499 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 73 IncrementalHoareTripleChecker+Valid, 2426 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-09-12 17:55:58,597 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [1327 Valid, 993 Invalid, 2499 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [73 Valid, 2426 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-09-12 17:55:58,599 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4894 states. [2024-09-12 17:55:59,338 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4894 to 2448. [2024-09-12 17:55:59,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2448 states, 2416 states have (on average 1.3162251655629138) internal successors, (3180), 2423 states have internal predecessors, (3180), 21 states have call successors, (21), 5 states have call predecessors, (21), 3 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2024-09-12 17:55:59,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2448 states to 2448 states and 3220 transitions. [2024-09-12 17:55:59,347 INFO L78 Accepts]: Start accepts. Automaton has 2448 states and 3220 transitions. Word has length 93 [2024-09-12 17:55:59,347 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 17:55:59,347 INFO L474 AbstractCegarLoop]: Abstraction has 2448 states and 3220 transitions. [2024-09-12 17:55:59,347 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 55 states, 54 states have (on average 3.5185185185185186) internal successors, (190), 55 states have internal predecessors, (190), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 17:55:59,348 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 17:55:59,348 INFO L276 IsEmpty]: Start isEmpty. Operand 2448 states and 3220 transitions. [2024-09-12 17:55:59,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2024-09-12 17:55:59,349 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 17:55:59,349 INFO L216 NwaCegarLoop]: trace histogram [8, 8, 8, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 17:55:59,362 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Ended with exit code 0 [2024-09-12 17:55:59,549 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable47 [2024-09-12 17:55:59,550 INFO L399 AbstractCegarLoop]: === Iteration 49 === Targeting parse_expression_listErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, parse_expression_listErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 30 more)] === [2024-09-12 17:55:59,550 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 17:55:59,550 INFO L85 PathProgramCache]: Analyzing trace with hash 1634079952, now seen corresponding path program 1 times [2024-09-12 17:55:59,550 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 17:55:59,550 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [700045502] [2024-09-12 17:55:59,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 17:55:59,550 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 17:55:59,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:55:59,624 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 17:55:59,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:55:59,626 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-09-12 17:55:59,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:55:59,628 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-09-12 17:55:59,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:55:59,630 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 95 trivial. 0 not checked. [2024-09-12 17:55:59,631 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 17:55:59,631 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [700045502] [2024-09-12 17:55:59,631 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [700045502] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 17:55:59,631 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 17:55:59,631 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-09-12 17:55:59,631 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2146014180] [2024-09-12 17:55:59,631 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 17:55:59,632 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-12 17:55:59,632 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 17:55:59,632 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-12 17:55:59,632 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-09-12 17:55:59,633 INFO L87 Difference]: Start difference. First operand 2448 states and 3220 transitions. Second operand has 5 states, 5 states have (on average 13.0) internal successors, (65), 5 states have internal predecessors, (65), 2 states have call successors, (5), 1 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 17:56:00,294 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 17:56:00,294 INFO L93 Difference]: Finished difference Result 2920 states and 3762 transitions. [2024-09-12 17:56:00,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-12 17:56:00,295 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 5 states have internal predecessors, (65), 2 states have call successors, (5), 1 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 96 [2024-09-12 17:56:00,295 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 17:56:00,300 INFO L225 Difference]: With dead ends: 2920 [2024-09-12 17:56:00,300 INFO L226 Difference]: Without dead ends: 1128 [2024-09-12 17:56:00,304 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-09-12 17:56:00,304 INFO L434 NwaCegarLoop]: 69 mSDtfsCounter, 23 mSDsluCounter, 96 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 165 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-09-12 17:56:00,304 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 165 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-09-12 17:56:00,305 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1128 states. [2024-09-12 17:56:00,443 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1128 to 483. [2024-09-12 17:56:00,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 483 states, 469 states have (on average 1.236673773987207) internal successors, (580), 474 states have internal predecessors, (580), 5 states have call successors, (5), 5 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 17:56:00,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 483 states to 483 states and 588 transitions. [2024-09-12 17:56:00,447 INFO L78 Accepts]: Start accepts. Automaton has 483 states and 588 transitions. Word has length 96 [2024-09-12 17:56:00,447 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 17:56:00,447 INFO L474 AbstractCegarLoop]: Abstraction has 483 states and 588 transitions. [2024-09-12 17:56:00,447 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 5 states have internal predecessors, (65), 2 states have call successors, (5), 1 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 17:56:00,448 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 17:56:00,448 INFO L276 IsEmpty]: Start isEmpty. Operand 483 states and 588 transitions. [2024-09-12 17:56:00,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2024-09-12 17:56:00,448 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 17:56:00,448 INFO L216 NwaCegarLoop]: trace histogram [8, 8, 8, 7, 7, 7, 6, 6, 6, 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 17:56:00,448 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2024-09-12 17:56:00,448 INFO L399 AbstractCegarLoop]: === Iteration 50 === Targeting parse_expression_listErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, parse_expression_listErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 30 more)] === [2024-09-12 17:56:00,449 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 17:56:00,449 INFO L85 PathProgramCache]: Analyzing trace with hash 167907866, now seen corresponding path program 1 times [2024-09-12 17:56:00,449 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 17:56:00,449 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2107507491] [2024-09-12 17:56:00,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 17:56:00,449 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 17:56:00,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:56:00,771 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 17:56:00,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:56:00,773 INFO L134 CoverageAnalysis]: Checked inductivity of 206 backedges. 0 proven. 114 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked. [2024-09-12 17:56:00,773 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 17:56:00,773 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2107507491] [2024-09-12 17:56:00,773 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2107507491] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 17:56:00,773 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1129495509] [2024-09-12 17:56:00,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 17:56:00,774 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 17:56:00,774 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 17:56:00,775 INFO L229 MonitoredProcess]: Starting monitored process 32 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 17:56:00,775 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Waiting until timeout for monitored process [2024-09-12 17:56:00,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:56:00,952 INFO L262 TraceCheckSpWp]: Trace formula consists of 326 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-09-12 17:56:00,953 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 17:56:01,365 INFO L134 CoverageAnalysis]: Checked inductivity of 206 backedges. 0 proven. 114 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked. [2024-09-12 17:56:01,366 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 17:56:01,822 INFO L134 CoverageAnalysis]: Checked inductivity of 206 backedges. 0 proven. 114 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked. [2024-09-12 17:56:01,822 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1129495509] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 17:56:01,822 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 17:56:01,822 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 21, 20] total 60 [2024-09-12 17:56:01,822 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [388136914] [2024-09-12 17:56:01,822 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 17:56:01,823 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 61 states [2024-09-12 17:56:01,823 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 17:56:01,823 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 61 interpolants. [2024-09-12 17:56:01,824 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=608, Invalid=3052, Unknown=0, NotChecked=0, Total=3660 [2024-09-12 17:56:01,824 INFO L87 Difference]: Start difference. First operand 483 states and 588 transitions. Second operand has 61 states, 60 states have (on average 3.316666666666667) internal successors, (199), 61 states have internal predecessors, (199), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 17:56:03,254 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 17:56:03,254 INFO L93 Difference]: Finished difference Result 925 states and 1117 transitions. [2024-09-12 17:56:03,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2024-09-12 17:56:03,254 INFO L78 Accepts]: Start accepts. Automaton has has 61 states, 60 states have (on average 3.316666666666667) internal successors, (199), 61 states have internal predecessors, (199), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 96 [2024-09-12 17:56:03,254 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 17:56:03,258 INFO L225 Difference]: With dead ends: 925 [2024-09-12 17:56:03,258 INFO L226 Difference]: Without dead ends: 913 [2024-09-12 17:56:03,258 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 235 GetRequests, 155 SyntacticMatches, 0 SemanticMatches, 80 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1948 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=898, Invalid=5744, Unknown=0, NotChecked=0, Total=6642 [2024-09-12 17:56:03,259 INFO L434 NwaCegarLoop]: 39 mSDtfsCounter, 918 mSDsluCounter, 662 mSDsCounter, 0 mSdLazyCounter, 1271 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 920 SdHoareTripleChecker+Valid, 701 SdHoareTripleChecker+Invalid, 1330 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 1271 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-09-12 17:56:03,259 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [920 Valid, 701 Invalid, 1330 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 1271 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-09-12 17:56:03,259 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 913 states. [2024-09-12 17:56:03,418 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 913 to 550. [2024-09-12 17:56:03,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 550 states, 536 states have (on average 1.2555970149253732) internal successors, (673), 541 states have internal predecessors, (673), 5 states have call successors, (5), 5 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 17:56:03,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 550 states to 550 states and 681 transitions. [2024-09-12 17:56:03,422 INFO L78 Accepts]: Start accepts. Automaton has 550 states and 681 transitions. Word has length 96 [2024-09-12 17:56:03,422 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 17:56:03,422 INFO L474 AbstractCegarLoop]: Abstraction has 550 states and 681 transitions. [2024-09-12 17:56:03,422 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 61 states, 60 states have (on average 3.316666666666667) internal successors, (199), 61 states have internal predecessors, (199), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 17:56:03,423 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 17:56:03,423 INFO L276 IsEmpty]: Start isEmpty. Operand 550 states and 681 transitions. [2024-09-12 17:56:03,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2024-09-12 17:56:03,423 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 17:56:03,423 INFO L216 NwaCegarLoop]: trace histogram [8, 8, 8, 6, 6, 6, 5, 5, 5, 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] [2024-09-12 17:56:03,435 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Forceful destruction successful, exit code 0 [2024-09-12 17:56:03,623 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 32 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable49 [2024-09-12 17:56:03,624 INFO L399 AbstractCegarLoop]: === Iteration 51 === Targeting parse_expression_listErr15ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, parse_expression_listErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 30 more)] === [2024-09-12 17:56:03,624 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 17:56:03,624 INFO L85 PathProgramCache]: Analyzing trace with hash -186803456, now seen corresponding path program 1 times [2024-09-12 17:56:03,624 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 17:56:03,624 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [959572968] [2024-09-12 17:56:03,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 17:56:03,624 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 17:56:03,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:56:03,897 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 17:56:03,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:56:03,899 INFO L134 CoverageAnalysis]: Checked inductivity of 177 backedges. 5 proven. 80 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked. [2024-09-12 17:56:03,899 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 17:56:03,899 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [959572968] [2024-09-12 17:56:03,899 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [959572968] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 17:56:03,899 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1707706436] [2024-09-12 17:56:03,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 17:56:03,900 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 17:56:03,900 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 17:56:03,901 INFO L229 MonitoredProcess]: Starting monitored process 33 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 17:56:03,902 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Waiting until timeout for monitored process [2024-09-12 17:56:04,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:56:04,075 INFO L262 TraceCheckSpWp]: Trace formula consists of 323 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-09-12 17:56:04,077 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 17:56:04,456 INFO L134 CoverageAnalysis]: Checked inductivity of 177 backedges. 5 proven. 80 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked. [2024-09-12 17:56:04,456 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 17:56:04,839 INFO L134 CoverageAnalysis]: Checked inductivity of 177 backedges. 5 proven. 80 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked. [2024-09-12 17:56:04,839 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1707706436] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 17:56:04,840 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 17:56:04,840 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 19, 18] total 54 [2024-09-12 17:56:04,840 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1650560344] [2024-09-12 17:56:04,840 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 17:56:04,840 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 55 states [2024-09-12 17:56:04,840 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 17:56:04,841 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 55 interpolants. [2024-09-12 17:56:04,841 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=482, Invalid=2488, Unknown=0, NotChecked=0, Total=2970 [2024-09-12 17:56:04,841 INFO L87 Difference]: Start difference. First operand 550 states and 681 transitions. Second operand has 55 states, 54 states have (on average 3.740740740740741) internal successors, (202), 55 states have internal predecessors, (202), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 17:56:06,027 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 17:56:06,027 INFO L93 Difference]: Finished difference Result 822 states and 996 transitions. [2024-09-12 17:56:06,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2024-09-12 17:56:06,028 INFO L78 Accepts]: Start accepts. Automaton has has 55 states, 54 states have (on average 3.740740740740741) internal successors, (202), 55 states have internal predecessors, (202), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 97 [2024-09-12 17:56:06,028 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 17:56:06,031 INFO L225 Difference]: With dead ends: 822 [2024-09-12 17:56:06,031 INFO L226 Difference]: Without dead ends: 764 [2024-09-12 17:56:06,032 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 230 GetRequests, 161 SyntacticMatches, 0 SemanticMatches, 69 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1478 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=674, Invalid=4296, Unknown=0, NotChecked=0, Total=4970 [2024-09-12 17:56:06,032 INFO L434 NwaCegarLoop]: 43 mSDtfsCounter, 454 mSDsluCounter, 845 mSDsCounter, 0 mSdLazyCounter, 1400 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 456 SdHoareTripleChecker+Valid, 888 SdHoareTripleChecker+Invalid, 1426 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 1400 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-09-12 17:56:06,032 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [456 Valid, 888 Invalid, 1426 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 1400 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-09-12 17:56:06,033 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 764 states. [2024-09-12 17:56:06,183 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 764 to 546. [2024-09-12 17:56:06,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 546 states, 532 states have (on average 1.2575187969924813) internal successors, (669), 537 states have internal predecessors, (669), 5 states have call successors, (5), 5 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 17:56:06,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 546 states to 546 states and 677 transitions. [2024-09-12 17:56:06,187 INFO L78 Accepts]: Start accepts. Automaton has 546 states and 677 transitions. Word has length 97 [2024-09-12 17:56:06,187 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 17:56:06,187 INFO L474 AbstractCegarLoop]: Abstraction has 546 states and 677 transitions. [2024-09-12 17:56:06,187 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 55 states, 54 states have (on average 3.740740740740741) internal successors, (202), 55 states have internal predecessors, (202), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 17:56:06,188 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 17:56:06,188 INFO L276 IsEmpty]: Start isEmpty. Operand 546 states and 677 transitions. [2024-09-12 17:56:06,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2024-09-12 17:56:06,188 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 17:56:06,188 INFO L216 NwaCegarLoop]: trace histogram [11, 11, 10, 10, 10, 10, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 17:56:06,200 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Ended with exit code 0 [2024-09-12 17:56:06,389 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 33 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable50 [2024-09-12 17:56:06,389 INFO L399 AbstractCegarLoop]: === Iteration 52 === Targeting parse_expression_listErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, parse_expression_listErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 30 more)] === [2024-09-12 17:56:06,389 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 17:56:06,389 INFO L85 PathProgramCache]: Analyzing trace with hash 1165714554, now seen corresponding path program 5 times [2024-09-12 17:56:06,389 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 17:56:06,389 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [42790703] [2024-09-12 17:56:06,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 17:56:06,390 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 17:56:06,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:56:06,679 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 17:56:06,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:56:06,681 INFO L134 CoverageAnalysis]: Checked inductivity of 392 backedges. 0 proven. 300 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked. [2024-09-12 17:56:06,681 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 17:56:06,681 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [42790703] [2024-09-12 17:56:06,681 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [42790703] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 17:56:06,681 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [48379527] [2024-09-12 17:56:06,681 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-09-12 17:56:06,681 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 17:56:06,681 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 17:56:06,682 INFO L229 MonitoredProcess]: Starting monitored process 34 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 17:56:06,683 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Waiting until timeout for monitored process [2024-09-12 17:56:06,886 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 11 check-sat command(s) [2024-09-12 17:56:06,886 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 17:56:06,887 INFO L262 TraceCheckSpWp]: Trace formula consists of 324 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-09-12 17:56:06,888 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 17:56:06,942 INFO L134 CoverageAnalysis]: Checked inductivity of 392 backedges. 0 proven. 300 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked. [2024-09-12 17:56:06,942 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 17:56:07,324 INFO L134 CoverageAnalysis]: Checked inductivity of 392 backedges. 0 proven. 300 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked. [2024-09-12 17:56:07,324 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [48379527] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 17:56:07,324 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 17:56:07,324 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 23, 23] total 45 [2024-09-12 17:56:07,324 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1075634204] [2024-09-12 17:56:07,324 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 17:56:07,325 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 46 states [2024-09-12 17:56:07,325 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 17:56:07,325 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 46 interpolants. [2024-09-12 17:56:07,326 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=551, Invalid=1519, Unknown=0, NotChecked=0, Total=2070 [2024-09-12 17:56:07,326 INFO L87 Difference]: Start difference. First operand 546 states and 677 transitions. Second operand has 46 states, 45 states have (on average 3.0444444444444443) internal successors, (137), 46 states have internal predecessors, (137), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 17:56:08,624 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 17:56:08,624 INFO L93 Difference]: Finished difference Result 3193 states and 3992 transitions. [2024-09-12 17:56:08,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2024-09-12 17:56:08,625 INFO L78 Accepts]: Start accepts. Automaton has has 46 states, 45 states have (on average 3.0444444444444443) internal successors, (137), 46 states have internal predecessors, (137), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 97 [2024-09-12 17:56:08,625 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 17:56:08,631 INFO L225 Difference]: With dead ends: 3193 [2024-09-12 17:56:08,631 INFO L226 Difference]: Without dead ends: 2618 [2024-09-12 17:56:08,633 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 218 GetRequests, 174 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 541 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=551, Invalid=1519, Unknown=0, NotChecked=0, Total=2070 [2024-09-12 17:56:08,634 INFO L434 NwaCegarLoop]: 79 mSDtfsCounter, 2102 mSDsluCounter, 1388 mSDsCounter, 0 mSdLazyCounter, 250 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2126 SdHoareTripleChecker+Valid, 1467 SdHoareTripleChecker+Invalid, 277 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 250 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 17:56:08,634 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [2126 Valid, 1467 Invalid, 277 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 250 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 17:56:08,635 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2618 states. [2024-09-12 17:56:08,896 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2618 to 567. [2024-09-12 17:56:08,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 567 states, 553 states have (on average 1.2332730560578662) internal successors, (682), 558 states have internal predecessors, (682), 5 states have call successors, (5), 5 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 17:56:08,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 567 states to 567 states and 690 transitions. [2024-09-12 17:56:08,902 INFO L78 Accepts]: Start accepts. Automaton has 567 states and 690 transitions. Word has length 97 [2024-09-12 17:56:08,904 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 17:56:08,904 INFO L474 AbstractCegarLoop]: Abstraction has 567 states and 690 transitions. [2024-09-12 17:56:08,904 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 46 states, 45 states have (on average 3.0444444444444443) internal successors, (137), 46 states have internal predecessors, (137), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 17:56:08,905 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 17:56:08,905 INFO L276 IsEmpty]: Start isEmpty. Operand 567 states and 690 transitions. [2024-09-12 17:56:08,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2024-09-12 17:56:08,905 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 17:56:08,906 INFO L216 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 7, 7, 7, 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 17:56:08,924 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Forceful destruction successful, exit code 0 [2024-09-12 17:56:09,106 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51,34 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 17:56:09,106 INFO L399 AbstractCegarLoop]: === Iteration 53 === Targeting parse_expression_listErr15ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, parse_expression_listErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 30 more)] === [2024-09-12 17:56:09,107 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 17:56:09,107 INFO L85 PathProgramCache]: Analyzing trace with hash 592454373, now seen corresponding path program 2 times [2024-09-12 17:56:09,107 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 17:56:09,107 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [853010921] [2024-09-12 17:56:09,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 17:56:09,107 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 17:56:09,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:56:09,525 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 17:56:09,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:56:09,527 INFO L134 CoverageAnalysis]: Checked inductivity of 246 backedges. 0 proven. 154 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked. [2024-09-12 17:56:09,527 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 17:56:09,527 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [853010921] [2024-09-12 17:56:09,528 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [853010921] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 17:56:09,528 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1442807506] [2024-09-12 17:56:09,528 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-12 17:56:09,528 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 17:56:09,528 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 17:56:09,530 INFO L229 MonitoredProcess]: Starting monitored process 35 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 17:56:09,531 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Waiting until timeout for monitored process [2024-09-12 17:56:09,726 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-09-12 17:56:09,726 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 17:56:09,727 INFO L262 TraceCheckSpWp]: Trace formula consists of 146 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-09-12 17:56:09,728 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 17:56:09,904 INFO L134 CoverageAnalysis]: Checked inductivity of 246 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 239 trivial. 0 not checked. [2024-09-12 17:56:09,904 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 17:56:09,904 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1442807506] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 17:56:09,905 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-09-12 17:56:09,905 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [23] total 30 [2024-09-12 17:56:09,905 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [33796971] [2024-09-12 17:56:09,905 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 17:56:09,905 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-09-12 17:56:09,905 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 17:56:09,905 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-09-12 17:56:09,906 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=166, Invalid=764, Unknown=0, NotChecked=0, Total=930 [2024-09-12 17:56:09,906 INFO L87 Difference]: Start difference. First operand 567 states and 690 transitions. Second operand has 9 states, 8 states have (on average 5.125) internal successors, (41), 9 states have internal predecessors, (41), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 17:56:10,457 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 17:56:10,457 INFO L93 Difference]: Finished difference Result 769 states and 925 transitions. [2024-09-12 17:56:10,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-09-12 17:56:10,458 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 5.125) internal successors, (41), 9 states have internal predecessors, (41), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 104 [2024-09-12 17:56:10,458 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 17:56:10,461 INFO L225 Difference]: With dead ends: 769 [2024-09-12 17:56:10,462 INFO L226 Difference]: Without dead ends: 715 [2024-09-12 17:56:10,462 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 99 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 245 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=186, Invalid=936, Unknown=0, NotChecked=0, Total=1122 [2024-09-12 17:56:10,462 INFO L434 NwaCegarLoop]: 54 mSDtfsCounter, 193 mSDsluCounter, 188 mSDsCounter, 0 mSdLazyCounter, 415 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 197 SdHoareTripleChecker+Valid, 242 SdHoareTripleChecker+Invalid, 426 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 415 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 17:56:10,463 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [197 Valid, 242 Invalid, 426 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 415 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 17:56:10,463 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 715 states. [2024-09-12 17:56:10,638 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 715 to 559. [2024-09-12 17:56:10,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 559 states, 545 states have (on average 1.2311926605504586) internal successors, (671), 550 states have internal predecessors, (671), 5 states have call successors, (5), 5 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 17:56:10,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 559 states to 559 states and 679 transitions. [2024-09-12 17:56:10,642 INFO L78 Accepts]: Start accepts. Automaton has 559 states and 679 transitions. Word has length 104 [2024-09-12 17:56:10,643 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 17:56:10,643 INFO L474 AbstractCegarLoop]: Abstraction has 559 states and 679 transitions. [2024-09-12 17:56:10,643 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 5.125) internal successors, (41), 9 states have internal predecessors, (41), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 17:56:10,643 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 17:56:10,643 INFO L276 IsEmpty]: Start isEmpty. Operand 559 states and 679 transitions. [2024-09-12 17:56:10,644 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-09-12 17:56:10,644 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 17:56:10,644 INFO L216 NwaCegarLoop]: trace histogram [9, 9, 9, 8, 8, 8, 8, 8, 8, 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 17:56:10,656 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Ended with exit code 0 [2024-09-12 17:56:10,844 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52,35 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 17:56:10,844 INFO L399 AbstractCegarLoop]: === Iteration 54 === Targeting parse_expression_listErr15ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, parse_expression_listErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 30 more)] === [2024-09-12 17:56:10,845 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 17:56:10,845 INFO L85 PathProgramCache]: Analyzing trace with hash -347981366, now seen corresponding path program 2 times [2024-09-12 17:56:10,845 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 17:56:10,845 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1340947924] [2024-09-12 17:56:10,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 17:56:10,845 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 17:56:10,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:56:11,237 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 17:56:11,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:56:11,239 INFO L134 CoverageAnalysis]: Checked inductivity of 292 backedges. 0 proven. 200 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked. [2024-09-12 17:56:11,239 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 17:56:11,239 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1340947924] [2024-09-12 17:56:11,239 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1340947924] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 17:56:11,239 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [776549034] [2024-09-12 17:56:11,239 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-12 17:56:11,239 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 17:56:11,239 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 17:56:11,240 INFO L229 MonitoredProcess]: Starting monitored process 36 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 17:56:11,241 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Waiting until timeout for monitored process [2024-09-12 17:56:11,408 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-09-12 17:56:11,408 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 17:56:11,408 INFO L262 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-09-12 17:56:11,409 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 17:56:11,554 INFO L134 CoverageAnalysis]: Checked inductivity of 292 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 284 trivial. 0 not checked. [2024-09-12 17:56:11,554 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 17:56:11,554 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [776549034] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 17:56:11,554 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-09-12 17:56:11,555 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [23] total 28 [2024-09-12 17:56:11,555 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [844711322] [2024-09-12 17:56:11,555 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 17:56:11,555 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-09-12 17:56:11,555 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 17:56:11,555 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-09-12 17:56:11,555 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=179, Invalid=633, Unknown=0, NotChecked=0, Total=812 [2024-09-12 17:56:11,555 INFO L87 Difference]: Start difference. First operand 559 states and 679 transitions. Second operand has 7 states, 6 states have (on average 6.5) internal successors, (39), 7 states have internal predecessors, (39), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 17:56:12,034 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 17:56:12,034 INFO L93 Difference]: Finished difference Result 717 states and 863 transitions. [2024-09-12 17:56:12,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-09-12 17:56:12,035 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 6.5) internal successors, (39), 7 states have internal predecessors, (39), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 108 [2024-09-12 17:56:12,035 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 17:56:12,038 INFO L225 Difference]: With dead ends: 717 [2024-09-12 17:56:12,038 INFO L226 Difference]: Without dead ends: 674 [2024-09-12 17:56:12,039 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 135 GetRequests, 105 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 205 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=196, Invalid=796, Unknown=0, NotChecked=0, Total=992 [2024-09-12 17:56:12,039 INFO L434 NwaCegarLoop]: 49 mSDtfsCounter, 115 mSDsluCounter, 164 mSDsCounter, 0 mSdLazyCounter, 259 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 117 SdHoareTripleChecker+Valid, 213 SdHoareTripleChecker+Invalid, 268 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 259 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 17:56:12,039 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [117 Valid, 213 Invalid, 268 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 259 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 17:56:12,040 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 674 states. [2024-09-12 17:56:12,191 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 674 to 503. [2024-09-12 17:56:12,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 503 states, 489 states have (on average 1.2331288343558282) internal successors, (603), 494 states have internal predecessors, (603), 5 states have call successors, (5), 5 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 17:56:12,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 503 states to 503 states and 611 transitions. [2024-09-12 17:56:12,195 INFO L78 Accepts]: Start accepts. Automaton has 503 states and 611 transitions. Word has length 108 [2024-09-12 17:56:12,195 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 17:56:12,195 INFO L474 AbstractCegarLoop]: Abstraction has 503 states and 611 transitions. [2024-09-12 17:56:12,195 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 6.5) internal successors, (39), 7 states have internal predecessors, (39), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 17:56:12,196 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 17:56:12,196 INFO L276 IsEmpty]: Start isEmpty. Operand 503 states and 611 transitions. [2024-09-12 17:56:12,196 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2024-09-12 17:56:12,196 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 17:56:12,196 INFO L216 NwaCegarLoop]: trace histogram [15, 15, 15, 15, 14, 8, 8, 8, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 17:56:12,208 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Forceful destruction successful, exit code 0 [2024-09-12 17:56:12,396 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 36 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable53 [2024-09-12 17:56:12,397 INFO L399 AbstractCegarLoop]: === Iteration 55 === Targeting parse_expression_listErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, parse_expression_listErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 30 more)] === [2024-09-12 17:56:12,397 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 17:56:12,397 INFO L85 PathProgramCache]: Analyzing trace with hash -284174728, now seen corresponding path program 1 times [2024-09-12 17:56:12,397 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 17:56:12,397 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1110722975] [2024-09-12 17:56:12,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 17:56:12,397 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 17:56:12,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:56:12,898 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 17:56:12,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:56:12,899 INFO L134 CoverageAnalysis]: Checked inductivity of 621 backedges. 0 proven. 525 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2024-09-12 17:56:12,899 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 17:56:12,899 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1110722975] [2024-09-12 17:56:12,900 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1110722975] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 17:56:12,900 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [223149684] [2024-09-12 17:56:12,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 17:56:12,900 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 17:56:12,900 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 17:56:12,901 INFO L229 MonitoredProcess]: Starting monitored process 37 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 17:56:12,902 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Waiting until timeout for monitored process [2024-09-12 17:56:13,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:56:13,106 INFO L262 TraceCheckSpWp]: Trace formula consists of 421 conjuncts, 31 conjuncts are in the unsatisfiable core [2024-09-12 17:56:13,107 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 17:56:13,190 INFO L134 CoverageAnalysis]: Checked inductivity of 621 backedges. 0 proven. 525 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2024-09-12 17:56:13,190 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 17:56:13,861 INFO L134 CoverageAnalysis]: Checked inductivity of 621 backedges. 0 proven. 525 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2024-09-12 17:56:13,862 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [223149684] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 17:56:13,862 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 17:56:13,862 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [31, 31, 31] total 63 [2024-09-12 17:56:13,862 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1843867164] [2024-09-12 17:56:13,862 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 17:56:13,862 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 64 states [2024-09-12 17:56:13,863 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 17:56:13,863 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 64 interpolants. [2024-09-12 17:56:13,864 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1055, Invalid=2977, Unknown=0, NotChecked=0, Total=4032 [2024-09-12 17:56:13,864 INFO L87 Difference]: Start difference. First operand 503 states and 611 transitions. Second operand has 64 states, 63 states have (on average 3.0) internal successors, (189), 64 states have internal predecessors, (189), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 17:56:16,424 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 17:56:16,424 INFO L93 Difference]: Finished difference Result 2014 states and 2429 transitions. [2024-09-12 17:56:16,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 62 states. [2024-09-12 17:56:16,424 INFO L78 Accepts]: Start accepts. Automaton has has 64 states, 63 states have (on average 3.0) internal successors, (189), 64 states have internal predecessors, (189), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 119 [2024-09-12 17:56:16,424 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 17:56:16,429 INFO L225 Difference]: With dead ends: 2014 [2024-09-12 17:56:16,429 INFO L226 Difference]: Without dead ends: 2013 [2024-09-12 17:56:16,430 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 270 GetRequests, 208 SyntacticMatches, 0 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1239 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=1055, Invalid=2977, Unknown=0, NotChecked=0, Total=4032 [2024-09-12 17:56:16,430 INFO L434 NwaCegarLoop]: 54 mSDtfsCounter, 3265 mSDsluCounter, 1115 mSDsCounter, 0 mSdLazyCounter, 1172 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3325 SdHoareTripleChecker+Valid, 1169 SdHoareTripleChecker+Invalid, 1205 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 1172 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-09-12 17:56:16,430 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [3325 Valid, 1169 Invalid, 1205 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 1172 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-09-12 17:56:16,431 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2013 states. [2024-09-12 17:56:16,668 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2013 to 657. [2024-09-12 17:56:16,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 657 states, 643 states have (on average 1.270606531881804) internal successors, (817), 648 states have internal predecessors, (817), 5 states have call successors, (5), 5 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 17:56:16,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 657 states to 657 states and 825 transitions. [2024-09-12 17:56:16,673 INFO L78 Accepts]: Start accepts. Automaton has 657 states and 825 transitions. Word has length 119 [2024-09-12 17:56:16,673 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 17:56:16,673 INFO L474 AbstractCegarLoop]: Abstraction has 657 states and 825 transitions. [2024-09-12 17:56:16,673 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 64 states, 63 states have (on average 3.0) internal successors, (189), 64 states have internal predecessors, (189), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 17:56:16,674 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 17:56:16,674 INFO L276 IsEmpty]: Start isEmpty. Operand 657 states and 825 transitions. [2024-09-12 17:56:16,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2024-09-12 17:56:16,674 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 17:56:16,674 INFO L216 NwaCegarLoop]: trace histogram [10, 10, 10, 9, 9, 9, 8, 8, 8, 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] [2024-09-12 17:56:16,686 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Ended with exit code 0 [2024-09-12 17:56:16,874 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54,37 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 17:56:16,875 INFO L399 AbstractCegarLoop]: === Iteration 56 === Targeting parse_expression_listErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, parse_expression_listErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 30 more)] === [2024-09-12 17:56:16,875 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 17:56:16,875 INFO L85 PathProgramCache]: Analyzing trace with hash 1769001378, now seen corresponding path program 1 times [2024-09-12 17:56:16,875 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 17:56:16,875 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [301001210] [2024-09-12 17:56:16,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 17:56:16,875 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 17:56:16,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:56:17,421 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 17:56:17,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:56:17,423 INFO L134 CoverageAnalysis]: Checked inductivity of 349 backedges. 5 proven. 252 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked. [2024-09-12 17:56:17,423 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 17:56:17,424 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [301001210] [2024-09-12 17:56:17,424 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [301001210] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 17:56:17,424 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1425442977] [2024-09-12 17:56:17,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 17:56:17,424 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 17:56:17,424 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 17:56:17,426 INFO L229 MonitoredProcess]: Starting monitored process 38 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 17:56:17,427 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (38)] Waiting until timeout for monitored process [2024-09-12 17:56:17,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:56:17,659 INFO L262 TraceCheckSpWp]: Trace formula consists of 372 conjuncts, 28 conjuncts are in the unsatisfiable core [2024-09-12 17:56:17,660 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 17:56:18,322 INFO L134 CoverageAnalysis]: Checked inductivity of 349 backedges. 5 proven. 252 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked. [2024-09-12 17:56:18,322 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 17:56:19,197 INFO L134 CoverageAnalysis]: Checked inductivity of 349 backedges. 5 proven. 252 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked. [2024-09-12 17:56:19,197 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1425442977] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 17:56:19,197 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 17:56:19,197 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [27, 27, 27] total 79 [2024-09-12 17:56:19,197 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1948002294] [2024-09-12 17:56:19,197 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 17:56:19,198 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 80 states [2024-09-12 17:56:19,198 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 17:56:19,198 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 80 interpolants. [2024-09-12 17:56:19,199 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1059, Invalid=5261, Unknown=0, NotChecked=0, Total=6320 [2024-09-12 17:56:19,200 INFO L87 Difference]: Start difference. First operand 657 states and 825 transitions. Second operand has 80 states, 79 states have (on average 3.392405063291139) internal successors, (268), 80 states have internal predecessors, (268), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 17:56:21,486 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 17:56:21,486 INFO L93 Difference]: Finished difference Result 1031 states and 1290 transitions. [2024-09-12 17:56:21,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 90 states. [2024-09-12 17:56:21,486 INFO L78 Accepts]: Start accepts. Automaton has has 80 states, 79 states have (on average 3.392405063291139) internal successors, (268), 80 states have internal predecessors, (268), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 119 [2024-09-12 17:56:21,487 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 17:56:21,490 INFO L225 Difference]: With dead ends: 1031 [2024-09-12 17:56:21,490 INFO L226 Difference]: Without dead ends: 1001 [2024-09-12 17:56:21,493 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 312 GetRequests, 188 SyntacticMatches, 0 SemanticMatches, 124 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3852 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=1876, Invalid=13874, Unknown=0, NotChecked=0, Total=15750 [2024-09-12 17:56:21,493 INFO L434 NwaCegarLoop]: 43 mSDtfsCounter, 1089 mSDsluCounter, 794 mSDsCounter, 0 mSdLazyCounter, 1393 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1091 SdHoareTripleChecker+Valid, 837 SdHoareTripleChecker+Invalid, 1415 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 1393 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-09-12 17:56:21,494 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [1091 Valid, 837 Invalid, 1415 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 1393 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-09-12 17:56:21,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1001 states. [2024-09-12 17:56:21,782 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1001 to 696. [2024-09-12 17:56:21,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 696 states, 682 states have (on average 1.2668621700879765) internal successors, (864), 687 states have internal predecessors, (864), 5 states have call successors, (5), 5 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 17:56:21,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 696 states to 696 states and 872 transitions. [2024-09-12 17:56:21,786 INFO L78 Accepts]: Start accepts. Automaton has 696 states and 872 transitions. Word has length 119 [2024-09-12 17:56:21,786 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 17:56:21,787 INFO L474 AbstractCegarLoop]: Abstraction has 696 states and 872 transitions. [2024-09-12 17:56:21,787 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 80 states, 79 states have (on average 3.392405063291139) internal successors, (268), 80 states have internal predecessors, (268), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 17:56:21,787 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 17:56:21,787 INFO L276 IsEmpty]: Start isEmpty. Operand 696 states and 872 transitions. [2024-09-12 17:56:21,787 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2024-09-12 17:56:21,787 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 17:56:21,788 INFO L216 NwaCegarLoop]: trace histogram [16, 16, 15, 15, 15, 8, 8, 8, 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 17:56:21,800 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (38)] Forceful destruction successful, exit code 0 [2024-09-12 17:56:21,988 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55,38 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 17:56:21,988 INFO L399 AbstractCegarLoop]: === Iteration 57 === Targeting parse_expression_listErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, parse_expression_listErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 30 more)] === [2024-09-12 17:56:21,988 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 17:56:21,989 INFO L85 PathProgramCache]: Analyzing trace with hash -1791375781, now seen corresponding path program 2 times [2024-09-12 17:56:21,989 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 17:56:21,989 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [681600707] [2024-09-12 17:56:21,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 17:56:21,989 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 17:56:22,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:56:22,539 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 17:56:22,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:56:22,541 INFO L134 CoverageAnalysis]: Checked inductivity of 666 backedges. 0 proven. 570 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2024-09-12 17:56:22,541 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 17:56:22,541 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [681600707] [2024-09-12 17:56:22,541 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [681600707] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 17:56:22,541 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1899028248] [2024-09-12 17:56:22,541 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-12 17:56:22,541 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 17:56:22,541 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 17:56:22,545 INFO L229 MonitoredProcess]: Starting monitored process 39 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 17:56:22,547 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (39)] Waiting until timeout for monitored process [2024-09-12 17:56:22,765 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-09-12 17:56:22,765 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 17:56:22,767 INFO L262 TraceCheckSpWp]: Trace formula consists of 439 conjuncts, 33 conjuncts are in the unsatisfiable core [2024-09-12 17:56:22,768 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 17:56:22,857 INFO L134 CoverageAnalysis]: Checked inductivity of 666 backedges. 0 proven. 570 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2024-09-12 17:56:22,858 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 17:56:23,610 INFO L134 CoverageAnalysis]: Checked inductivity of 666 backedges. 0 proven. 570 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2024-09-12 17:56:23,610 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1899028248] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 17:56:23,610 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 17:56:23,610 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [33, 33, 33] total 67 [2024-09-12 17:56:23,610 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2026022747] [2024-09-12 17:56:23,610 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 17:56:23,611 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 68 states [2024-09-12 17:56:23,611 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 17:56:23,611 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 68 interpolants. [2024-09-12 17:56:23,612 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1127, Invalid=3429, Unknown=0, NotChecked=0, Total=4556 [2024-09-12 17:56:23,612 INFO L87 Difference]: Start difference. First operand 696 states and 872 transitions. Second operand has 68 states, 67 states have (on average 3.029850746268657) internal successors, (203), 68 states have internal predecessors, (203), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 17:56:26,624 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 17:56:26,624 INFO L93 Difference]: Finished difference Result 2136 states and 2543 transitions. [2024-09-12 17:56:26,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 66 states. [2024-09-12 17:56:26,624 INFO L78 Accepts]: Start accepts. Automaton has has 68 states, 67 states have (on average 3.029850746268657) internal successors, (203), 68 states have internal predecessors, (203), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 126 [2024-09-12 17:56:26,625 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 17:56:26,629 INFO L225 Difference]: With dead ends: 2136 [2024-09-12 17:56:26,629 INFO L226 Difference]: Without dead ends: 2099 [2024-09-12 17:56:26,630 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 286 GetRequests, 220 SyntacticMatches, 0 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1411 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=1127, Invalid=3429, Unknown=0, NotChecked=0, Total=4556 [2024-09-12 17:56:26,630 INFO L434 NwaCegarLoop]: 52 mSDtfsCounter, 2895 mSDsluCounter, 1194 mSDsCounter, 0 mSdLazyCounter, 1273 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2959 SdHoareTripleChecker+Valid, 1246 SdHoareTripleChecker+Invalid, 1313 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 1273 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-09-12 17:56:26,630 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [2959 Valid, 1246 Invalid, 1313 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 1273 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-09-12 17:56:26,631 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2099 states. [2024-09-12 17:56:26,868 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2099 to 702. [2024-09-12 17:56:26,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 702 states, 688 states have (on average 1.247093023255814) internal successors, (858), 693 states have internal predecessors, (858), 5 states have call successors, (5), 5 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 17:56:26,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 702 states to 702 states and 866 transitions. [2024-09-12 17:56:26,873 INFO L78 Accepts]: Start accepts. Automaton has 702 states and 866 transitions. Word has length 126 [2024-09-12 17:56:26,873 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 17:56:26,873 INFO L474 AbstractCegarLoop]: Abstraction has 702 states and 866 transitions. [2024-09-12 17:56:26,873 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 68 states, 67 states have (on average 3.029850746268657) internal successors, (203), 68 states have internal predecessors, (203), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 17:56:26,873 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 17:56:26,874 INFO L276 IsEmpty]: Start isEmpty. Operand 702 states and 866 transitions. [2024-09-12 17:56:26,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2024-09-12 17:56:26,874 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 17:56:26,874 INFO L216 NwaCegarLoop]: trace histogram [11, 11, 11, 10, 10, 10, 8, 8, 8, 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] [2024-09-12 17:56:26,893 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (39)] Forceful destruction successful, exit code 0 [2024-09-12 17:56:27,075 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 39 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable56 [2024-09-12 17:56:27,075 INFO L399 AbstractCegarLoop]: === Iteration 58 === Targeting parse_expression_listErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, parse_expression_listErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 30 more)] === [2024-09-12 17:56:27,075 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 17:56:27,075 INFO L85 PathProgramCache]: Analyzing trace with hash -142174187, now seen corresponding path program 1 times [2024-09-12 17:56:27,076 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 17:56:27,076 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1543977501] [2024-09-12 17:56:27,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 17:56:27,076 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 17:56:27,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:56:27,603 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 17:56:27,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:56:27,605 INFO L134 CoverageAnalysis]: Checked inductivity of 407 backedges. 5 proven. 310 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked. [2024-09-12 17:56:27,605 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 17:56:27,605 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1543977501] [2024-09-12 17:56:27,605 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1543977501] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 17:56:27,605 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [894559452] [2024-09-12 17:56:27,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 17:56:27,605 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 17:56:27,605 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 17:56:27,606 INFO L229 MonitoredProcess]: Starting monitored process 40 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 17:56:27,607 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (40)] Waiting until timeout for monitored process [2024-09-12 17:56:27,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:56:27,818 INFO L262 TraceCheckSpWp]: Trace formula consists of 392 conjuncts, 32 conjuncts are in the unsatisfiable core [2024-09-12 17:56:27,820 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 17:56:28,619 INFO L134 CoverageAnalysis]: Checked inductivity of 407 backedges. 5 proven. 310 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked. [2024-09-12 17:56:28,619 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 17:56:29,592 INFO L134 CoverageAnalysis]: Checked inductivity of 407 backedges. 5 proven. 310 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked. [2024-09-12 17:56:29,592 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [894559452] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 17:56:29,592 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 17:56:29,592 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [31, 31, 30] total 90 [2024-09-12 17:56:29,592 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1047529998] [2024-09-12 17:56:29,592 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 17:56:29,593 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 91 states [2024-09-12 17:56:29,593 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 17:56:29,594 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 91 interpolants. [2024-09-12 17:56:29,595 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1306, Invalid=6884, Unknown=0, NotChecked=0, Total=8190 [2024-09-12 17:56:29,595 INFO L87 Difference]: Start difference. First operand 702 states and 866 transitions. Second operand has 91 states, 90 states have (on average 3.2444444444444445) internal successors, (292), 91 states have internal predecessors, (292), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 17:56:32,414 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 17:56:32,415 INFO L93 Difference]: Finished difference Result 1169 states and 1433 transitions. [2024-09-12 17:56:32,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 104 states. [2024-09-12 17:56:32,415 INFO L78 Accepts]: Start accepts. Automaton has has 91 states, 90 states have (on average 3.2444444444444445) internal successors, (292), 91 states have internal predecessors, (292), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 127 [2024-09-12 17:56:32,415 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 17:56:32,419 INFO L225 Difference]: With dead ends: 1169 [2024-09-12 17:56:32,419 INFO L226 Difference]: Without dead ends: 1139 [2024-09-12 17:56:32,421 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 338 GetRequests, 197 SyntacticMatches, 0 SemanticMatches, 141 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6153 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=2315, Invalid=17991, Unknown=0, NotChecked=0, Total=20306 [2024-09-12 17:56:32,421 INFO L434 NwaCegarLoop]: 48 mSDtfsCounter, 1787 mSDsluCounter, 827 mSDsCounter, 0 mSdLazyCounter, 1852 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1789 SdHoareTripleChecker+Valid, 875 SdHoareTripleChecker+Invalid, 1900 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 1852 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-09-12 17:56:32,421 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [1789 Valid, 875 Invalid, 1900 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 1852 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-09-12 17:56:32,422 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1139 states. [2024-09-12 17:56:32,636 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1139 to 693. [2024-09-12 17:56:32,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 693 states, 679 states have (on average 1.2474226804123711) internal successors, (847), 684 states have internal predecessors, (847), 5 states have call successors, (5), 5 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 17:56:32,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 693 states to 693 states and 855 transitions. [2024-09-12 17:56:32,641 INFO L78 Accepts]: Start accepts. Automaton has 693 states and 855 transitions. Word has length 127 [2024-09-12 17:56:32,641 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 17:56:32,641 INFO L474 AbstractCegarLoop]: Abstraction has 693 states and 855 transitions. [2024-09-12 17:56:32,641 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 91 states, 90 states have (on average 3.2444444444444445) internal successors, (292), 91 states have internal predecessors, (292), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 17:56:32,642 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 17:56:32,642 INFO L276 IsEmpty]: Start isEmpty. Operand 693 states and 855 transitions. [2024-09-12 17:56:32,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2024-09-12 17:56:32,642 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 17:56:32,642 INFO L216 NwaCegarLoop]: trace histogram [11, 11, 11, 10, 10, 10, 8, 8, 8, 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] [2024-09-12 17:56:32,655 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (40)] Ended with exit code 0 [2024-09-12 17:56:32,842 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 40 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable57 [2024-09-12 17:56:32,843 INFO L399 AbstractCegarLoop]: === Iteration 59 === Targeting parse_expression_listErr15ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, parse_expression_listErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 30 more)] === [2024-09-12 17:56:32,843 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 17:56:32,844 INFO L85 PathProgramCache]: Analyzing trace with hash -1448692613, now seen corresponding path program 2 times [2024-09-12 17:56:32,844 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 17:56:32,844 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [670084772] [2024-09-12 17:56:32,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 17:56:32,844 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 17:56:32,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:56:33,397 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 17:56:33,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:56:33,399 INFO L134 CoverageAnalysis]: Checked inductivity of 407 backedges. 5 proven. 310 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked. [2024-09-12 17:56:33,399 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 17:56:33,399 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [670084772] [2024-09-12 17:56:33,399 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [670084772] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 17:56:33,399 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1517517631] [2024-09-12 17:56:33,400 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-12 17:56:33,400 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 17:56:33,400 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 17:56:33,402 INFO L229 MonitoredProcess]: Starting monitored process 41 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 17:56:33,403 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (41)] Waiting until timeout for monitored process [2024-09-12 17:56:33,619 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-09-12 17:56:33,619 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 17:56:33,620 INFO L262 TraceCheckSpWp]: Trace formula consists of 387 conjuncts, 30 conjuncts are in the unsatisfiable core [2024-09-12 17:56:33,622 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 17:56:34,383 INFO L134 CoverageAnalysis]: Checked inductivity of 407 backedges. 5 proven. 310 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked. [2024-09-12 17:56:34,383 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 17:56:35,424 INFO L134 CoverageAnalysis]: Checked inductivity of 407 backedges. 5 proven. 310 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked. [2024-09-12 17:56:35,424 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1517517631] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 17:56:35,424 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 17:56:35,425 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [29, 29, 29] total 85 [2024-09-12 17:56:35,425 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2040334367] [2024-09-12 17:56:35,425 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 17:56:35,425 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 86 states [2024-09-12 17:56:35,425 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 17:56:35,426 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 86 interpolants. [2024-09-12 17:56:35,427 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1245, Invalid=6065, Unknown=0, NotChecked=0, Total=7310 [2024-09-12 17:56:35,427 INFO L87 Difference]: Start difference. First operand 693 states and 855 transitions. Second operand has 86 states, 85 states have (on average 3.4352941176470586) internal successors, (292), 86 states have internal predecessors, (292), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 17:56:38,224 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 17:56:38,225 INFO L93 Difference]: Finished difference Result 1169 states and 1428 transitions. [2024-09-12 17:56:38,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 99 states. [2024-09-12 17:56:38,225 INFO L78 Accepts]: Start accepts. Automaton has has 86 states, 85 states have (on average 3.4352941176470586) internal successors, (292), 86 states have internal predecessors, (292), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 127 [2024-09-12 17:56:38,225 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 17:56:38,229 INFO L225 Difference]: With dead ends: 1169 [2024-09-12 17:56:38,229 INFO L226 Difference]: Without dead ends: 1069 [2024-09-12 17:56:38,230 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 334 GetRequests, 200 SyntacticMatches, 0 SemanticMatches, 134 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4502 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=2187, Invalid=16173, Unknown=0, NotChecked=0, Total=18360 [2024-09-12 17:56:38,230 INFO L434 NwaCegarLoop]: 45 mSDtfsCounter, 1243 mSDsluCounter, 943 mSDsCounter, 0 mSdLazyCounter, 1543 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1245 SdHoareTripleChecker+Valid, 988 SdHoareTripleChecker+Invalid, 1584 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 1543 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-09-12 17:56:38,230 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [1245 Valid, 988 Invalid, 1584 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 1543 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-09-12 17:56:38,231 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1069 states. [2024-09-12 17:56:38,474 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1069 to 724. [2024-09-12 17:56:38,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 724 states, 710 states have (on average 1.2478873239436619) internal successors, (886), 715 states have internal predecessors, (886), 5 states have call successors, (5), 5 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 17:56:38,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 724 states to 724 states and 894 transitions. [2024-09-12 17:56:38,478 INFO L78 Accepts]: Start accepts. Automaton has 724 states and 894 transitions. Word has length 127 [2024-09-12 17:56:38,478 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 17:56:38,478 INFO L474 AbstractCegarLoop]: Abstraction has 724 states and 894 transitions. [2024-09-12 17:56:38,478 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 86 states, 85 states have (on average 3.4352941176470586) internal successors, (292), 86 states have internal predecessors, (292), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 17:56:38,478 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 17:56:38,479 INFO L276 IsEmpty]: Start isEmpty. Operand 724 states and 894 transitions. [2024-09-12 17:56:38,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2024-09-12 17:56:38,479 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 17:56:38,479 INFO L216 NwaCegarLoop]: trace histogram [12, 12, 12, 11, 11, 11, 8, 8, 8, 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] [2024-09-12 17:56:38,492 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (41)] Forceful destruction successful, exit code 0 [2024-09-12 17:56:38,679 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 41 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable58 [2024-09-12 17:56:38,680 INFO L399 AbstractCegarLoop]: === Iteration 60 === Targeting parse_expression_listErr15ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, parse_expression_listErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 30 more)] === [2024-09-12 17:56:38,680 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 17:56:38,680 INFO L85 PathProgramCache]: Analyzing trace with hash 1387835406, now seen corresponding path program 3 times [2024-09-12 17:56:38,680 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 17:56:38,680 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [160198678] [2024-09-12 17:56:38,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 17:56:38,680 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 17:56:38,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:56:39,279 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 17:56:39,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:56:39,281 INFO L134 CoverageAnalysis]: Checked inductivity of 471 backedges. 5 proven. 374 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked. [2024-09-12 17:56:39,281 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 17:56:39,281 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [160198678] [2024-09-12 17:56:39,281 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [160198678] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 17:56:39,282 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [928871804] [2024-09-12 17:56:39,282 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-09-12 17:56:39,282 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 17:56:39,282 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 17:56:39,284 INFO L229 MonitoredProcess]: Starting monitored process 42 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 17:56:39,285 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (42)] Waiting until timeout for monitored process [2024-09-12 17:56:39,491 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-09-12 17:56:39,492 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 17:56:39,492 INFO L262 TraceCheckSpWp]: Trace formula consists of 173 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-09-12 17:56:39,494 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 17:56:39,678 INFO L134 CoverageAnalysis]: Checked inductivity of 471 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 455 trivial. 0 not checked. [2024-09-12 17:56:39,678 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 17:56:39,678 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [928871804] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 17:56:39,678 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-09-12 17:56:39,678 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [29] total 34 [2024-09-12 17:56:39,678 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [437918186] [2024-09-12 17:56:39,678 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 17:56:39,678 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-09-12 17:56:39,679 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 17:56:39,679 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-09-12 17:56:39,679 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=263, Invalid=927, Unknown=0, NotChecked=0, Total=1190 [2024-09-12 17:56:39,679 INFO L87 Difference]: Start difference. First operand 724 states and 894 transitions. Second operand has 7 states, 6 states have (on average 7.333333333333333) internal successors, (44), 7 states have internal predecessors, (44), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 17:56:40,230 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 17:56:40,230 INFO L93 Difference]: Finished difference Result 831 states and 1011 transitions. [2024-09-12 17:56:40,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-09-12 17:56:40,231 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 7.333333333333333) internal successors, (44), 7 states have internal predecessors, (44), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 131 [2024-09-12 17:56:40,231 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 17:56:40,235 INFO L225 Difference]: With dead ends: 831 [2024-09-12 17:56:40,235 INFO L226 Difference]: Without dead ends: 805 [2024-09-12 17:56:40,235 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 164 GetRequests, 128 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 304 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=280, Invalid=1126, Unknown=0, NotChecked=0, Total=1406 [2024-09-12 17:56:40,235 INFO L434 NwaCegarLoop]: 58 mSDtfsCounter, 110 mSDsluCounter, 135 mSDsCounter, 0 mSdLazyCounter, 241 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 193 SdHoareTripleChecker+Invalid, 249 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 241 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 17:56:40,236 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [112 Valid, 193 Invalid, 249 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 241 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 17:56:40,236 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 805 states. [2024-09-12 17:56:40,464 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 805 to 691. [2024-09-12 17:56:40,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 691 states, 677 states have (on average 1.243722304283604) internal successors, (842), 682 states have internal predecessors, (842), 5 states have call successors, (5), 5 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 17:56:40,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 691 states to 691 states and 850 transitions. [2024-09-12 17:56:40,468 INFO L78 Accepts]: Start accepts. Automaton has 691 states and 850 transitions. Word has length 131 [2024-09-12 17:56:40,468 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 17:56:40,468 INFO L474 AbstractCegarLoop]: Abstraction has 691 states and 850 transitions. [2024-09-12 17:56:40,468 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 7.333333333333333) internal successors, (44), 7 states have internal predecessors, (44), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 17:56:40,468 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 17:56:40,468 INFO L276 IsEmpty]: Start isEmpty. Operand 691 states and 850 transitions. [2024-09-12 17:56:40,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-09-12 17:56:40,469 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 17:56:40,469 INFO L216 NwaCegarLoop]: trace histogram [12, 12, 12, 11, 11, 11, 8, 8, 8, 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 17:56:40,481 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (42)] Forceful destruction successful, exit code 0 [2024-09-12 17:56:40,669 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable59,42 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 17:56:40,669 INFO L399 AbstractCegarLoop]: === Iteration 61 === Targeting parse_expression_listErr15ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, parse_expression_listErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 30 more)] === [2024-09-12 17:56:40,670 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 17:56:40,670 INFO L85 PathProgramCache]: Analyzing trace with hash -941767890, now seen corresponding path program 2 times [2024-09-12 17:56:40,670 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 17:56:40,670 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [429868771] [2024-09-12 17:56:40,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 17:56:40,670 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 17:56:40,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:56:41,254 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 17:56:41,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:56:41,256 INFO L134 CoverageAnalysis]: Checked inductivity of 471 backedges. 5 proven. 374 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked. [2024-09-12 17:56:41,256 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 17:56:41,256 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [429868771] [2024-09-12 17:56:41,256 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [429868771] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 17:56:41,256 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1241719597] [2024-09-12 17:56:41,257 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-12 17:56:41,257 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 17:56:41,257 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 17:56:41,259 INFO L229 MonitoredProcess]: Starting monitored process 43 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 17:56:41,260 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (43)] Waiting until timeout for monitored process [2024-09-12 17:56:41,461 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-09-12 17:56:41,461 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 17:56:41,461 INFO L262 TraceCheckSpWp]: Trace formula consists of 146 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-09-12 17:56:41,463 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 17:56:41,663 INFO L134 CoverageAnalysis]: Checked inductivity of 471 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 471 trivial. 0 not checked. [2024-09-12 17:56:41,663 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 17:56:41,663 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1241719597] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 17:56:41,664 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-09-12 17:56:41,664 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [33] total 37 [2024-09-12 17:56:41,664 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [443528568] [2024-09-12 17:56:41,664 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 17:56:41,664 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-09-12 17:56:41,664 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 17:56:41,665 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-09-12 17:56:41,665 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=261, Invalid=1145, Unknown=0, NotChecked=0, Total=1406 [2024-09-12 17:56:41,665 INFO L87 Difference]: Start difference. First operand 691 states and 850 transitions. Second operand has 6 states, 5 states have (on average 8.8) internal successors, (44), 6 states have internal predecessors, (44), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 17:56:42,115 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 17:56:42,116 INFO L93 Difference]: Finished difference Result 767 states and 935 transitions. [2024-09-12 17:56:42,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-12 17:56:42,116 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 8.8) internal successors, (44), 6 states have internal predecessors, (44), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 135 [2024-09-12 17:56:42,116 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 17:56:42,120 INFO L225 Difference]: With dead ends: 767 [2024-09-12 17:56:42,120 INFO L226 Difference]: Without dead ends: 713 [2024-09-12 17:56:42,120 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 169 GetRequests, 133 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 372 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=261, Invalid=1145, Unknown=0, NotChecked=0, Total=1406 [2024-09-12 17:56:42,120 INFO L434 NwaCegarLoop]: 52 mSDtfsCounter, 78 mSDsluCounter, 152 mSDsCounter, 0 mSdLazyCounter, 176 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 82 SdHoareTripleChecker+Valid, 204 SdHoareTripleChecker+Invalid, 181 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 176 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 17:56:42,121 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [82 Valid, 204 Invalid, 181 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 176 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 17:56:42,121 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 713 states. [2024-09-12 17:56:42,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 713 to 599. [2024-09-12 17:56:42,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 599 states, 585 states have (on average 1.2478632478632479) internal successors, (730), 590 states have internal predecessors, (730), 5 states have call successors, (5), 5 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 17:56:42,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 599 states to 599 states and 738 transitions. [2024-09-12 17:56:42,302 INFO L78 Accepts]: Start accepts. Automaton has 599 states and 738 transitions. Word has length 135 [2024-09-12 17:56:42,302 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 17:56:42,302 INFO L474 AbstractCegarLoop]: Abstraction has 599 states and 738 transitions. [2024-09-12 17:56:42,302 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 8.8) internal successors, (44), 6 states have internal predecessors, (44), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 17:56:42,303 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 17:56:42,303 INFO L276 IsEmpty]: Start isEmpty. Operand 599 states and 738 transitions. [2024-09-12 17:56:42,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2024-09-12 17:56:42,303 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 17:56:42,303 INFO L216 NwaCegarLoop]: trace histogram [23, 23, 22, 22, 22, 22, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 17:56:42,316 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (43)] Forceful destruction successful, exit code 0 [2024-09-12 17:56:42,504 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60,43 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 17:56:42,504 INFO L399 AbstractCegarLoop]: === Iteration 62 === Targeting parse_expression_listErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, parse_expression_listErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 30 more)] === [2024-09-12 17:56:42,504 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 17:56:42,504 INFO L85 PathProgramCache]: Analyzing trace with hash -23144050, now seen corresponding path program 6 times [2024-09-12 17:56:42,504 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 17:56:42,504 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [832016240] [2024-09-12 17:56:42,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 17:56:42,505 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 17:56:42,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:56:43,414 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 17:56:43,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:56:43,416 INFO L134 CoverageAnalysis]: Checked inductivity of 1544 backedges. 0 proven. 1452 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked. [2024-09-12 17:56:43,416 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 17:56:43,416 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [832016240] [2024-09-12 17:56:43,416 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [832016240] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 17:56:43,416 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2132860521] [2024-09-12 17:56:43,416 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-09-12 17:56:43,416 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 17:56:43,417 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 17:56:43,418 INFO L229 MonitoredProcess]: Starting monitored process 44 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 17:56:43,420 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (44)] Waiting until timeout for monitored process [2024-09-12 17:56:43,779 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 20 check-sat command(s) [2024-09-12 17:56:43,779 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 17:56:43,781 INFO L262 TraceCheckSpWp]: Trace formula consists of 441 conjuncts, 55 conjuncts are in the unsatisfiable core [2024-09-12 17:56:43,784 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 17:56:43,840 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-09-12 17:56:44,480 INFO L134 CoverageAnalysis]: Checked inductivity of 1544 backedges. 729 proven. 216 refuted. 0 times theorem prover too weak. 599 trivial. 0 not checked. [2024-09-12 17:56:44,481 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 17:56:45,199 INFO L134 CoverageAnalysis]: Checked inductivity of 1544 backedges. 729 proven. 216 refuted. 0 times theorem prover too weak. 599 trivial. 0 not checked. [2024-09-12 17:56:45,200 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2132860521] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 17:56:45,200 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 17:56:45,200 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [47, 25, 24] total 92 [2024-09-12 17:56:45,200 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [972919034] [2024-09-12 17:56:45,200 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 17:56:45,200 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 92 states [2024-09-12 17:56:45,200 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 17:56:45,201 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 92 interpolants. [2024-09-12 17:56:45,202 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1065, Invalid=7307, Unknown=0, NotChecked=0, Total=8372 [2024-09-12 17:56:45,202 INFO L87 Difference]: Start difference. First operand 599 states and 738 transitions. Second operand has 92 states, 90 states have (on average 2.988888888888889) internal successors, (269), 90 states have internal predecessors, (269), 3 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 17:56:46,833 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 17:56:46,833 INFO L93 Difference]: Finished difference Result 1911 states and 2306 transitions. [2024-09-12 17:56:46,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2024-09-12 17:56:46,834 INFO L78 Accepts]: Start accepts. Automaton has has 92 states, 90 states have (on average 2.988888888888889) internal successors, (269), 90 states have internal predecessors, (269), 3 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 169 [2024-09-12 17:56:46,834 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 17:56:46,839 INFO L225 Difference]: With dead ends: 1911 [2024-09-12 17:56:46,839 INFO L226 Difference]: Without dead ends: 1398 [2024-09-12 17:56:46,840 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 406 GetRequests, 296 SyntacticMatches, 0 SemanticMatches, 110 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4086 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=1557, Invalid=10875, Unknown=0, NotChecked=0, Total=12432 [2024-09-12 17:56:46,840 INFO L434 NwaCegarLoop]: 105 mSDtfsCounter, 644 mSDsluCounter, 2943 mSDsCounter, 0 mSdLazyCounter, 1990 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 644 SdHoareTripleChecker+Valid, 3048 SdHoareTripleChecker+Invalid, 1990 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1990 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-09-12 17:56:46,841 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [644 Valid, 3048 Invalid, 1990 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1990 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-09-12 17:56:46,841 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1398 states. [2024-09-12 17:56:46,932 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1398 to 250. [2024-09-12 17:56:46,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 250 states, 244 states have (on average 1.1721311475409837) internal successors, (286), 245 states have internal predecessors, (286), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 17:56:46,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 250 states to 250 states and 290 transitions. [2024-09-12 17:56:46,936 INFO L78 Accepts]: Start accepts. Automaton has 250 states and 290 transitions. Word has length 169 [2024-09-12 17:56:46,936 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 17:56:46,936 INFO L474 AbstractCegarLoop]: Abstraction has 250 states and 290 transitions. [2024-09-12 17:56:46,936 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 92 states, 90 states have (on average 2.988888888888889) internal successors, (269), 90 states have internal predecessors, (269), 3 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 17:56:46,936 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 17:56:46,936 INFO L276 IsEmpty]: Start isEmpty. Operand 250 states and 290 transitions. [2024-09-12 17:56:46,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2024-09-12 17:56:46,937 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 17:56:46,937 INFO L216 NwaCegarLoop]: trace histogram [31, 31, 31, 31, 30, 8, 8, 8, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 17:56:46,951 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (44)] Ended with exit code 0 [2024-09-12 17:56:47,138 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61,44 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 17:56:47,138 INFO L399 AbstractCegarLoop]: === Iteration 63 === Targeting parse_expression_listErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, parse_expression_listErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 30 more)] === [2024-09-12 17:56:47,139 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 17:56:47,139 INFO L85 PathProgramCache]: Analyzing trace with hash -17252232, now seen corresponding path program 2 times [2024-09-12 17:56:47,139 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 17:56:47,139 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2104372478] [2024-09-12 17:56:47,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 17:56:47,139 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 17:56:47,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:56:48,654 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 17:56:48,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:56:48,656 INFO L134 CoverageAnalysis]: Checked inductivity of 2421 backedges. 0 proven. 2325 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2024-09-12 17:56:48,656 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 17:56:48,656 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2104372478] [2024-09-12 17:56:48,656 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2104372478] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 17:56:48,656 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [9010089] [2024-09-12 17:56:48,657 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-12 17:56:48,657 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 17:56:48,657 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 17:56:48,658 INFO L229 MonitoredProcess]: Starting monitored process 45 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 17:56:48,659 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (45)] Waiting until timeout for monitored process [2024-09-12 17:56:48,924 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-09-12 17:56:48,924 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 17:56:48,926 INFO L262 TraceCheckSpWp]: Trace formula consists of 645 conjuncts, 63 conjuncts are in the unsatisfiable core [2024-09-12 17:56:48,929 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 17:56:49,133 INFO L134 CoverageAnalysis]: Checked inductivity of 2421 backedges. 0 proven. 2325 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2024-09-12 17:56:49,133 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 17:56:51,682 INFO L134 CoverageAnalysis]: Checked inductivity of 2421 backedges. 0 proven. 2325 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2024-09-12 17:56:51,682 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [9010089] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 17:56:51,683 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 17:56:51,683 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [63, 63, 63] total 127 [2024-09-12 17:56:51,683 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1146157944] [2024-09-12 17:56:51,683 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 17:56:51,683 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 128 states [2024-09-12 17:56:51,683 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 17:56:51,685 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 128 interpolants. [2024-09-12 17:56:51,687 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=4159, Invalid=12097, Unknown=0, NotChecked=0, Total=16256 [2024-09-12 17:56:51,687 INFO L87 Difference]: Start difference. First operand 250 states and 290 transitions. Second operand has 128 states, 127 states have (on average 2.748031496062992) internal successors, (349), 128 states have internal predecessors, (349), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 17:56:52,282 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 17:56:52,282 INFO L93 Difference]: Finished difference Result 470 states and 603 transitions. [2024-09-12 17:56:52,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 126 states. [2024-09-12 17:56:52,283 INFO L78 Accepts]: Start accepts. Automaton has has 128 states, 127 states have (on average 2.748031496062992) internal successors, (349), 128 states have internal predecessors, (349), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 199 [2024-09-12 17:56:52,283 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 17:56:52,286 INFO L225 Difference]: With dead ends: 470 [2024-09-12 17:56:52,286 INFO L226 Difference]: Without dead ends: 469 [2024-09-12 17:56:52,288 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 462 GetRequests, 336 SyntacticMatches, 0 SemanticMatches, 126 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5047 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=4159, Invalid=12097, Unknown=0, NotChecked=0, Total=16256 [2024-09-12 17:56:52,288 INFO L434 NwaCegarLoop]: 22 mSDtfsCounter, 399 mSDsluCounter, 241 mSDsCounter, 0 mSdLazyCounter, 416 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 399 SdHoareTripleChecker+Valid, 263 SdHoareTripleChecker+Invalid, 417 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 416 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-09-12 17:56:52,288 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [399 Valid, 263 Invalid, 417 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 416 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-09-12 17:56:52,289 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 469 states. [2024-09-12 17:56:52,442 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 469 to 407. [2024-09-12 17:56:52,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 407 states, 401 states have (on average 1.259351620947631) internal successors, (505), 402 states have internal predecessors, (505), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 17:56:52,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 407 states to 407 states and 509 transitions. [2024-09-12 17:56:52,446 INFO L78 Accepts]: Start accepts. Automaton has 407 states and 509 transitions. Word has length 199 [2024-09-12 17:56:52,446 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 17:56:52,446 INFO L474 AbstractCegarLoop]: Abstraction has 407 states and 509 transitions. [2024-09-12 17:56:52,446 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 128 states, 127 states have (on average 2.748031496062992) internal successors, (349), 128 states have internal predecessors, (349), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 17:56:52,447 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 17:56:52,447 INFO L276 IsEmpty]: Start isEmpty. Operand 407 states and 509 transitions. [2024-09-12 17:56:52,447 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 207 [2024-09-12 17:56:52,447 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 17:56:52,447 INFO L216 NwaCegarLoop]: trace histogram [32, 32, 31, 31, 31, 8, 8, 8, 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 17:56:52,460 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (45)] Forceful destruction successful, exit code 0 [2024-09-12 17:56:52,648 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62,45 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 17:56:52,648 INFO L399 AbstractCegarLoop]: === Iteration 64 === Targeting parse_expression_listErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, parse_expression_listErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 30 more)] === [2024-09-12 17:56:52,648 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 17:56:52,648 INFO L85 PathProgramCache]: Analyzing trace with hash 592813147, now seen corresponding path program 3 times [2024-09-12 17:56:52,648 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 17:56:52,648 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [543667477] [2024-09-12 17:56:52,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 17:56:52,649 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 17:56:52,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:56:54,220 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 17:56:54,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:56:54,222 INFO L134 CoverageAnalysis]: Checked inductivity of 2514 backedges. 0 proven. 2418 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2024-09-12 17:56:54,222 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 17:56:54,222 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [543667477] [2024-09-12 17:56:54,222 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [543667477] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 17:56:54,222 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [199655623] [2024-09-12 17:56:54,223 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-09-12 17:56:54,223 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 17:56:54,223 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 17:56:54,224 INFO L229 MonitoredProcess]: Starting monitored process 46 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 17:56:54,225 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (46)] Waiting until timeout for monitored process [2024-09-12 17:56:54,495 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 9 check-sat command(s) [2024-09-12 17:56:54,495 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 17:56:54,497 INFO L262 TraceCheckSpWp]: Trace formula consists of 341 conjuncts, 28 conjuncts are in the unsatisfiable core [2024-09-12 17:56:54,500 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 17:56:54,807 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2024-09-12 17:56:54,845 INFO L134 CoverageAnalysis]: Checked inductivity of 2514 backedges. 240 proven. 7 refuted. 0 times theorem prover too weak. 2267 trivial. 0 not checked. [2024-09-12 17:56:54,845 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 17:56:54,989 INFO L349 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size [2024-09-12 17:56:54,989 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 21 treesize of output 10 [2024-09-12 17:56:55,129 INFO L134 CoverageAnalysis]: Checked inductivity of 2514 backedges. 240 proven. 7 refuted. 0 times theorem prover too weak. 2267 trivial. 0 not checked. [2024-09-12 17:56:55,129 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [199655623] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 17:56:55,129 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 17:56:55,129 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [65, 13, 11] total 85 [2024-09-12 17:56:55,129 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1067950925] [2024-09-12 17:56:55,129 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 17:56:55,130 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 85 states [2024-09-12 17:56:55,130 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 17:56:55,131 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 85 interpolants. [2024-09-12 17:56:55,132 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1393, Invalid=5747, Unknown=0, NotChecked=0, Total=7140 [2024-09-12 17:56:55,132 INFO L87 Difference]: Start difference. First operand 407 states and 509 transitions. Second operand has 85 states, 85 states have (on average 2.7411764705882353) internal successors, (233), 84 states have internal predecessors, (233), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 17:56:57,491 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 17:56:57,491 INFO L93 Difference]: Finished difference Result 733 states and 929 transitions. [2024-09-12 17:56:57,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 77 states. [2024-09-12 17:56:57,491 INFO L78 Accepts]: Start accepts. Automaton has has 85 states, 85 states have (on average 2.7411764705882353) internal successors, (233), 84 states have internal predecessors, (233), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 206 [2024-09-12 17:56:57,491 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 17:56:57,494 INFO L225 Difference]: With dead ends: 733 [2024-09-12 17:56:57,494 INFO L226 Difference]: Without dead ends: 407 [2024-09-12 17:56:57,497 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 551 GetRequests, 395 SyntacticMatches, 0 SemanticMatches, 156 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5733 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=4191, Invalid=20615, Unknown=0, NotChecked=0, Total=24806 [2024-09-12 17:56:57,497 INFO L434 NwaCegarLoop]: 14 mSDtfsCounter, 339 mSDsluCounter, 327 mSDsCounter, 0 mSdLazyCounter, 652 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 339 SdHoareTripleChecker+Valid, 341 SdHoareTripleChecker+Invalid, 654 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 652 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-09-12 17:56:57,497 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [339 Valid, 341 Invalid, 654 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 652 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-09-12 17:56:57,498 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 407 states. [2024-09-12 17:56:57,635 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 407 to 407. [2024-09-12 17:56:57,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 407 states, 401 states have (on average 1.254364089775561) internal successors, (503), 402 states have internal predecessors, (503), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 17:56:57,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 407 states to 407 states and 507 transitions. [2024-09-12 17:56:57,639 INFO L78 Accepts]: Start accepts. Automaton has 407 states and 507 transitions. Word has length 206 [2024-09-12 17:56:57,639 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 17:56:57,639 INFO L474 AbstractCegarLoop]: Abstraction has 407 states and 507 transitions. [2024-09-12 17:56:57,639 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 85 states, 85 states have (on average 2.7411764705882353) internal successors, (233), 84 states have internal predecessors, (233), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 17:56:57,639 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 17:56:57,639 INFO L276 IsEmpty]: Start isEmpty. Operand 407 states and 507 transitions. [2024-09-12 17:56:57,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2024-09-12 17:56:57,640 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 17:56:57,640 INFO L216 NwaCegarLoop]: trace histogram [33, 33, 32, 32, 32, 8, 8, 8, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 17:56:57,653 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (46)] Forceful destruction successful, exit code 0 [2024-09-12 17:56:57,840 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable63,46 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 17:56:57,840 INFO L399 AbstractCegarLoop]: === Iteration 65 === Targeting parse_expression_listErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, parse_expression_listErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 30 more)] === [2024-09-12 17:56:57,841 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 17:56:57,841 INFO L85 PathProgramCache]: Analyzing trace with hash 1670846896, now seen corresponding path program 4 times [2024-09-12 17:56:57,841 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 17:56:57,841 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [744749053] [2024-09-12 17:56:57,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 17:56:57,841 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 17:56:57,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:56:59,485 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 17:56:59,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:56:59,487 INFO L134 CoverageAnalysis]: Checked inductivity of 2682 backedges. 0 proven. 2576 refuted. 0 times theorem prover too weak. 106 trivial. 0 not checked. [2024-09-12 17:56:59,487 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 17:56:59,487 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [744749053] [2024-09-12 17:56:59,487 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [744749053] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 17:56:59,488 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1481951159] [2024-09-12 17:56:59,488 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-09-12 17:56:59,488 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 17:56:59,488 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 17:56:59,490 INFO L229 MonitoredProcess]: Starting monitored process 47 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 17:56:59,493 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (47)] Waiting until timeout for monitored process [2024-09-12 17:56:59,790 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-09-12 17:56:59,790 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 17:56:59,792 INFO L262 TraceCheckSpWp]: Trace formula consists of 690 conjuncts, 67 conjuncts are in the unsatisfiable core [2024-09-12 17:56:59,795 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 17:56:59,986 INFO L134 CoverageAnalysis]: Checked inductivity of 2682 backedges. 0 proven. 2576 refuted. 0 times theorem prover too weak. 106 trivial. 0 not checked. [2024-09-12 17:56:59,987 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 17:57:02,920 INFO L134 CoverageAnalysis]: Checked inductivity of 2682 backedges. 0 proven. 2576 refuted. 0 times theorem prover too weak. 106 trivial. 0 not checked. [2024-09-12 17:57:02,920 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1481951159] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 17:57:02,920 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 17:57:02,920 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [67, 67, 67] total 135 [2024-09-12 17:57:02,920 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1581923402] [2024-09-12 17:57:02,920 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 17:57:02,921 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 136 states [2024-09-12 17:57:02,921 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 17:57:02,923 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 136 interpolants. [2024-09-12 17:57:02,925 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=4561, Invalid=13799, Unknown=0, NotChecked=0, Total=18360 [2024-09-12 17:57:02,925 INFO L87 Difference]: Start difference. First operand 407 states and 507 transitions. Second operand has 136 states, 135 states have (on average 2.762962962962963) internal successors, (373), 136 states have internal predecessors, (373), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 17:57:03,577 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 17:57:03,577 INFO L93 Difference]: Finished difference Result 492 states and 598 transitions. [2024-09-12 17:57:03,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 133 states. [2024-09-12 17:57:03,578 INFO L78 Accepts]: Start accepts. Automaton has has 136 states, 135 states have (on average 2.762962962962963) internal successors, (373), 136 states have internal predecessors, (373), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 217 [2024-09-12 17:57:03,578 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 17:57:03,581 INFO L225 Difference]: With dead ends: 492 [2024-09-12 17:57:03,581 INFO L226 Difference]: Without dead ends: 420 [2024-09-12 17:57:03,584 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 502 GetRequests, 368 SyntacticMatches, 0 SemanticMatches, 134 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5729 ImplicationChecksByTransitivity, 3.8s TimeCoverageRelationStatistics Valid=4561, Invalid=13799, Unknown=0, NotChecked=0, Total=18360 [2024-09-12 17:57:03,584 INFO L434 NwaCegarLoop]: 21 mSDtfsCounter, 431 mSDsluCounter, 237 mSDsCounter, 0 mSdLazyCounter, 447 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 431 SdHoareTripleChecker+Valid, 258 SdHoareTripleChecker+Invalid, 449 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 447 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-09-12 17:57:03,584 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [431 Valid, 258 Invalid, 449 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 447 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-09-12 17:57:03,585 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 420 states. [2024-09-12 17:57:03,744 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 420 to 420. [2024-09-12 17:57:03,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 420 states, 414 states have (on average 1.181159420289855) internal successors, (489), 415 states have internal predecessors, (489), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 17:57:03,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 420 states to 420 states and 493 transitions. [2024-09-12 17:57:03,748 INFO L78 Accepts]: Start accepts. Automaton has 420 states and 493 transitions. Word has length 217 [2024-09-12 17:57:03,748 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 17:57:03,748 INFO L474 AbstractCegarLoop]: Abstraction has 420 states and 493 transitions. [2024-09-12 17:57:03,748 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 136 states, 135 states have (on average 2.762962962962963) internal successors, (373), 136 states have internal predecessors, (373), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 17:57:03,748 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 17:57:03,748 INFO L276 IsEmpty]: Start isEmpty. Operand 420 states and 493 transitions. [2024-09-12 17:57:03,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 376 [2024-09-12 17:57:03,749 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 17:57:03,749 INFO L216 NwaCegarLoop]: trace histogram [65, 65, 65, 65, 64, 8, 8, 8, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 17:57:03,762 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (47)] Forceful destruction successful, exit code 0 [2024-09-12 17:57:03,950 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable64,47 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 17:57:03,950 INFO L399 AbstractCegarLoop]: === Iteration 66 === Targeting parse_expression_listErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, parse_expression_listErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 30 more)] === [2024-09-12 17:57:03,950 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 17:57:03,950 INFO L85 PathProgramCache]: Analyzing trace with hash 1416650671, now seen corresponding path program 3 times [2024-09-12 17:57:03,950 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 17:57:03,950 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1854227214] [2024-09-12 17:57:03,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 17:57:03,951 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 17:57:04,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:57:10,431 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 17:57:10,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:57:10,434 INFO L134 CoverageAnalysis]: Checked inductivity of 10506 backedges. 0 proven. 10400 refuted. 0 times theorem prover too weak. 106 trivial. 0 not checked. [2024-09-12 17:57:10,434 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 17:57:10,434 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1854227214] [2024-09-12 17:57:10,434 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1854227214] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 17:57:10,434 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [120609062] [2024-09-12 17:57:10,435 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-09-12 17:57:10,435 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 17:57:10,435 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 17:57:10,437 INFO L229 MonitoredProcess]: Starting monitored process 48 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 17:57:10,441 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (48)] Waiting until timeout for monitored process [2024-09-12 17:57:10,865 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 14 check-sat command(s) [2024-09-12 17:57:10,866 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 17:57:10,868 INFO L262 TraceCheckSpWp]: Trace formula consists of 420 conjuncts, 38 conjuncts are in the unsatisfiable core [2024-09-12 17:57:10,871 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 17:57:11,499 INFO L134 CoverageAnalysis]: Checked inductivity of 10506 backedges. 810 proven. 25 refuted. 0 times theorem prover too weak. 9671 trivial. 0 not checked. [2024-09-12 17:57:11,499 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 17:57:11,934 INFO L349 Elim1Store]: treesize reduction 5, result has 50.0 percent of original size [2024-09-12 17:57:11,934 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 14 [2024-09-12 17:57:12,274 INFO L134 CoverageAnalysis]: Checked inductivity of 10506 backedges. 810 proven. 25 refuted. 0 times theorem prover too weak. 9671 trivial. 0 not checked. [2024-09-12 17:57:12,275 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [120609062] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 17:57:12,275 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 17:57:12,275 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [131, 17, 15] total 159 [2024-09-12 17:57:12,275 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1799588368] [2024-09-12 17:57:12,275 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 17:57:12,276 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 159 states [2024-09-12 17:57:12,276 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 17:57:12,278 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 159 interpolants. [2024-09-12 17:57:12,282 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5265, Invalid=19857, Unknown=0, NotChecked=0, Total=25122 [2024-09-12 17:57:12,282 INFO L87 Difference]: Start difference. First operand 420 states and 493 transitions. Second operand has 159 states, 159 states have (on average 2.6037735849056602) internal successors, (414), 158 states have internal predecessors, (414), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 17:57:20,215 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 17:57:20,215 INFO L93 Difference]: Finished difference Result 757 states and 897 transitions. [2024-09-12 17:57:20,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 147 states. [2024-09-12 17:57:20,216 INFO L78 Accepts]: Start accepts. Automaton has has 159 states, 159 states have (on average 2.6037735849056602) internal successors, (414), 158 states have internal predecessors, (414), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 375 [2024-09-12 17:57:20,216 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 17:57:20,219 INFO L225 Difference]: With dead ends: 757 [2024-09-12 17:57:20,219 INFO L226 Difference]: Without dead ends: 422 [2024-09-12 17:57:20,227 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 1025 GetRequests, 725 SyntacticMatches, 0 SemanticMatches, 300 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20403 ImplicationChecksByTransitivity, 12.2s TimeCoverageRelationStatistics Valid=15851, Invalid=75051, Unknown=0, NotChecked=0, Total=90902 [2024-09-12 17:57:20,228 INFO L434 NwaCegarLoop]: 20 mSDtfsCounter, 698 mSDsluCounter, 524 mSDsCounter, 0 mSdLazyCounter, 1098 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 698 SdHoareTripleChecker+Valid, 544 SdHoareTripleChecker+Invalid, 1100 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1098 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-09-12 17:57:20,228 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [698 Valid, 544 Invalid, 1100 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1098 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-09-12 17:57:20,228 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 422 states. [2024-09-12 17:57:20,401 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 422 to 422. [2024-09-12 17:57:20,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 422 states, 416 states have (on average 1.1778846153846154) internal successors, (490), 417 states have internal predecessors, (490), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 17:57:20,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 422 states to 422 states and 494 transitions. [2024-09-12 17:57:20,404 INFO L78 Accepts]: Start accepts. Automaton has 422 states and 494 transitions. Word has length 375 [2024-09-12 17:57:20,405 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 17:57:20,405 INFO L474 AbstractCegarLoop]: Abstraction has 422 states and 494 transitions. [2024-09-12 17:57:20,405 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 159 states, 159 states have (on average 2.6037735849056602) internal successors, (414), 158 states have internal predecessors, (414), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 17:57:20,405 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 17:57:20,405 INFO L276 IsEmpty]: Start isEmpty. Operand 422 states and 494 transitions. [2024-09-12 17:57:20,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 387 [2024-09-12 17:57:20,406 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 17:57:20,406 INFO L216 NwaCegarLoop]: trace histogram [66, 66, 66, 66, 65, 8, 8, 8, 4, 4, 4, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 17:57:20,420 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (48)] Forceful destruction successful, exit code 0 [2024-09-12 17:57:20,606 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable65,48 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 17:57:20,607 INFO L399 AbstractCegarLoop]: === Iteration 67 === Targeting parse_expression_listErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, parse_expression_listErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 30 more)] === [2024-09-12 17:57:20,607 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 17:57:20,607 INFO L85 PathProgramCache]: Analyzing trace with hash -1974874644, now seen corresponding path program 4 times [2024-09-12 17:57:20,607 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 17:57:20,607 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1383059891] [2024-09-12 17:57:20,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 17:57:20,607 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 17:57:20,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:57:27,311 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 17:57:27,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:57:27,314 INFO L134 CoverageAnalysis]: Checked inductivity of 10847 backedges. 0 proven. 10725 refuted. 0 times theorem prover too weak. 122 trivial. 0 not checked. [2024-09-12 17:57:27,314 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 17:57:27,314 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1383059891] [2024-09-12 17:57:27,314 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1383059891] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 17:57:27,314 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [460549755] [2024-09-12 17:57:27,314 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-09-12 17:57:27,314 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 17:57:27,314 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 17:57:27,315 INFO L229 MonitoredProcess]: Starting monitored process 49 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 17:57:27,316 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (49)] Waiting until timeout for monitored process [2024-09-12 17:57:27,700 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-09-12 17:57:27,701 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 17:57:27,705 INFO L262 TraceCheckSpWp]: Trace formula consists of 1161 conjuncts, 133 conjuncts are in the unsatisfiable core [2024-09-12 17:57:27,710 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 17:57:28,063 INFO L134 CoverageAnalysis]: Checked inductivity of 10847 backedges. 0 proven. 10725 refuted. 0 times theorem prover too weak. 122 trivial. 0 not checked. [2024-09-12 17:57:28,063 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 17:57:39,334 INFO L134 CoverageAnalysis]: Checked inductivity of 10847 backedges. 0 proven. 10725 refuted. 0 times theorem prover too weak. 122 trivial. 0 not checked. [2024-09-12 17:57:39,334 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [460549755] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 17:57:39,334 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 17:57:39,334 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [133, 133, 133] total 267 [2024-09-12 17:57:39,334 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [744307217] [2024-09-12 17:57:39,334 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 17:57:39,335 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 268 states [2024-09-12 17:57:39,335 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 17:57:39,339 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 268 interpolants. [2024-09-12 17:57:39,345 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18089, Invalid=53467, Unknown=0, NotChecked=0, Total=71556 [2024-09-12 17:57:39,345 INFO L87 Difference]: Start difference. First operand 422 states and 494 transitions. Second operand has 268 states, 267 states have (on average 2.6179775280898876) internal successors, (699), 268 states have internal predecessors, (699), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 17:57:41,632 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 17:57:41,632 INFO L93 Difference]: Finished difference Result 892 states and 1164 transitions. [2024-09-12 17:57:41,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 266 states. [2024-09-12 17:57:41,633 INFO L78 Accepts]: Start accepts. Automaton has has 268 states, 267 states have (on average 2.6179775280898876) internal successors, (699), 268 states have internal predecessors, (699), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 386 [2024-09-12 17:57:41,633 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 17:57:41,637 INFO L225 Difference]: With dead ends: 892 [2024-09-12 17:57:41,637 INFO L226 Difference]: Without dead ends: 891 [2024-09-12 17:57:41,639 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 906 GetRequests, 640 SyntacticMatches, 0 SemanticMatches, 266 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22302 ImplicationChecksByTransitivity, 15.1s TimeCoverageRelationStatistics Valid=18089, Invalid=53467, Unknown=0, NotChecked=0, Total=71556 [2024-09-12 17:57:41,639 INFO L434 NwaCegarLoop]: 22 mSDtfsCounter, 990 mSDsluCounter, 380 mSDsCounter, 0 mSdLazyCounter, 820 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 990 SdHoareTripleChecker+Valid, 402 SdHoareTripleChecker+Invalid, 821 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 820 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-09-12 17:57:41,639 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [990 Valid, 402 Invalid, 821 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 820 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-09-12 17:57:41,640 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 891 states. [2024-09-12 17:57:41,908 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 891 to 757. [2024-09-12 17:57:41,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 757 states, 751 states have (on average 1.2769640479360853) internal successors, (959), 752 states have internal predecessors, (959), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 17:57:41,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 757 states to 757 states and 963 transitions. [2024-09-12 17:57:41,913 INFO L78 Accepts]: Start accepts. Automaton has 757 states and 963 transitions. Word has length 386 [2024-09-12 17:57:41,913 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 17:57:41,913 INFO L474 AbstractCegarLoop]: Abstraction has 757 states and 963 transitions. [2024-09-12 17:57:41,913 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 268 states, 267 states have (on average 2.6179775280898876) internal successors, (699), 268 states have internal predecessors, (699), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 17:57:41,914 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 17:57:41,914 INFO L276 IsEmpty]: Start isEmpty. Operand 757 states and 963 transitions. [2024-09-12 17:57:41,915 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 389 [2024-09-12 17:57:41,915 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 17:57:41,915 INFO L216 NwaCegarLoop]: trace histogram [66, 66, 65, 65, 65, 8, 8, 8, 4, 4, 4, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 17:57:41,929 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (49)] Forceful destruction successful, exit code 0 [2024-09-12 17:57:42,115 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 49 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable66 [2024-09-12 17:57:42,116 INFO L399 AbstractCegarLoop]: === Iteration 68 === Targeting parse_expression_listErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, parse_expression_listErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 30 more)] === [2024-09-12 17:57:42,116 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 17:57:42,116 INFO L85 PathProgramCache]: Analyzing trace with hash 519353517, now seen corresponding path program 5 times [2024-09-12 17:57:42,116 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 17:57:42,116 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1851310583] [2024-09-12 17:57:42,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 17:57:42,116 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 17:57:42,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:57:48,708 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 17:57:48,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:57:48,711 INFO L134 CoverageAnalysis]: Checked inductivity of 10717 backedges. 0 proven. 10595 refuted. 0 times theorem prover too weak. 122 trivial. 0 not checked. [2024-09-12 17:57:48,711 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 17:57:48,711 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1851310583] [2024-09-12 17:57:48,711 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1851310583] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 17:57:48,711 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [477349343] [2024-09-12 17:57:48,711 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-09-12 17:57:48,711 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 17:57:48,711 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 17:57:48,712 INFO L229 MonitoredProcess]: Starting monitored process 50 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 17:57:48,713 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (50)] Waiting until timeout for monitored process [2024-09-12 17:57:49,198 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 66 check-sat command(s) [2024-09-12 17:57:49,199 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 17:57:49,204 INFO L262 TraceCheckSpWp]: Trace formula consists of 1165 conjuncts, 133 conjuncts are in the unsatisfiable core [2024-09-12 17:57:49,210 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 17:57:49,574 INFO L134 CoverageAnalysis]: Checked inductivity of 10717 backedges. 0 proven. 10595 refuted. 0 times theorem prover too weak. 122 trivial. 0 not checked. [2024-09-12 17:57:49,574 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 17:58:00,799 INFO L134 CoverageAnalysis]: Checked inductivity of 10717 backedges. 0 proven. 10595 refuted. 0 times theorem prover too weak. 122 trivial. 0 not checked. [2024-09-12 17:58:00,799 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [477349343] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 17:58:00,799 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 17:58:00,799 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [133, 133, 133] total 267 [2024-09-12 17:58:00,799 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1208728454] [2024-09-12 17:58:00,799 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 17:58:00,800 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 268 states [2024-09-12 17:58:00,800 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 17:58:00,803 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 268 interpolants. [2024-09-12 17:58:00,807 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17827, Invalid=53729, Unknown=0, NotChecked=0, Total=71556 [2024-09-12 17:58:00,807 INFO L87 Difference]: Start difference. First operand 757 states and 963 transitions. Second operand has 268 states, 267 states have (on average 2.6329588014981273) internal successors, (703), 268 states have internal predecessors, (703), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 17:58:03,174 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 17:58:03,174 INFO L93 Difference]: Finished difference Result 894 states and 1099 transitions. [2024-09-12 17:58:03,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 265 states. [2024-09-12 17:58:03,175 INFO L78 Accepts]: Start accepts. Automaton has has 268 states, 267 states have (on average 2.6329588014981273) internal successors, (703), 268 states have internal predecessors, (703), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 388 [2024-09-12 17:58:03,175 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 17:58:03,180 INFO L225 Difference]: With dead ends: 894 [2024-09-12 17:58:03,180 INFO L226 Difference]: Without dead ends: 757 [2024-09-12 17:58:03,184 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 910 GetRequests, 644 SyntacticMatches, 0 SemanticMatches, 266 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22361 ImplicationChecksByTransitivity, 15.0s TimeCoverageRelationStatistics Valid=17827, Invalid=53729, Unknown=0, NotChecked=0, Total=71556 [2024-09-12 17:58:03,184 INFO L434 NwaCegarLoop]: 21 mSDtfsCounter, 976 mSDsluCounter, 392 mSDsCounter, 0 mSdLazyCounter, 843 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 976 SdHoareTripleChecker+Valid, 413 SdHoareTripleChecker+Invalid, 843 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 843 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-09-12 17:58:03,184 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [976 Valid, 413 Invalid, 843 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 843 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-09-12 17:58:03,185 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 757 states. [2024-09-12 17:58:03,488 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 757 to 757. [2024-09-12 17:58:03,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 757 states, 751 states have (on average 1.189081225033289) internal successors, (893), 752 states have internal predecessors, (893), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 17:58:03,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 757 states to 757 states and 897 transitions. [2024-09-12 17:58:03,492 INFO L78 Accepts]: Start accepts. Automaton has 757 states and 897 transitions. Word has length 388 [2024-09-12 17:58:03,492 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 17:58:03,492 INFO L474 AbstractCegarLoop]: Abstraction has 757 states and 897 transitions. [2024-09-12 17:58:03,493 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 268 states, 267 states have (on average 2.6329588014981273) internal successors, (703), 268 states have internal predecessors, (703), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 17:58:03,493 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 17:58:03,493 INFO L276 IsEmpty]: Start isEmpty. Operand 757 states and 897 transitions. [2024-09-12 17:58:03,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 719 [2024-09-12 17:58:03,496 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 17:58:03,496 INFO L216 NwaCegarLoop]: trace histogram [132, 132, 131, 131, 131, 8, 8, 8, 4, 4, 4, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 17:58:03,511 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (50)] Forceful destruction successful, exit code 0 [2024-09-12 17:58:03,696 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 50 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable67 [2024-09-12 17:58:03,696 INFO L399 AbstractCegarLoop]: === Iteration 69 === Targeting parse_expression_listErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, parse_expression_listErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 30 more)] === [2024-09-12 17:58:03,697 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 17:58:03,697 INFO L85 PathProgramCache]: Analyzing trace with hash 682557677, now seen corresponding path program 6 times [2024-09-12 17:58:03,697 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 17:58:03,697 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [562119434] [2024-09-12 17:58:03,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 17:58:03,697 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 17:58:03,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:58:33,616 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 17:58:33,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:58:33,621 INFO L134 CoverageAnalysis]: Checked inductivity of 43090 backedges. 0 proven. 42968 refuted. 0 times theorem prover too weak. 122 trivial. 0 not checked. [2024-09-12 17:58:33,621 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 17:58:33,621 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [562119434] [2024-09-12 17:58:33,621 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [562119434] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 17:58:33,621 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1818471200] [2024-09-12 17:58:33,621 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-09-12 17:58:33,621 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 17:58:33,622 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 17:58:33,623 INFO L229 MonitoredProcess]: Starting monitored process 51 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 17:58:33,623 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (51)] Waiting until timeout for monitored process [2024-09-12 17:58:34,620 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 37 check-sat command(s) [2024-09-12 17:58:34,620 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 17:58:34,625 INFO L262 TraceCheckSpWp]: Trace formula consists of 759 conjuncts, 44 conjuncts are in the unsatisfiable core [2024-09-12 17:58:34,633 INFO L285 TraceCheckSpWp]: Computing forward predicates...