./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/verifythis/lcp.c --full-output --procedureinliner.inline.calls.to.implemented.procedures NEVER --traceabstraction.positions.where.we.compute.the.hoare.annotation All --witnessprinter.yaml.format.version 2.1 --cacsl2boogietranslator.check.absence.of.signed.integer.overflows true --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a9b967e5 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/certificate-witnesses-artifact/automizer/data/config -Xmx15G -Xms4m -jar /storage/repos/certificate-witnesses-artifact/automizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/certificate-witnesses-artifact/automizer/data -tc /storage/repos/certificate-witnesses-artifact/automizer/config/AutomizerReach.xml -i ../sv-benchmarks/c/verifythis/lcp.c -s /storage/repos/certificate-witnesses-artifact/automizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/certificate-witnesses-artifact/automizer --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 1e47fbc54bff4eeebe072cdb8acf7cfe734a91f148fd421ae1769ba3b81a6f5a --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 18:24:06,066 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-09-12 18:24:06,143 INFO L114 SettingsManager]: Loading settings from /storage/repos/certificate-witnesses-artifact/automizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-09-12 18:24:06,151 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-09-12 18:24:06,152 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-09-12 18:24:06,184 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-09-12 18:24:06,185 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-09-12 18:24:06,185 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-09-12 18:24:06,186 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-09-12 18:24:06,186 INFO L153 SettingsManager]: * Use memory slicer=true [2024-09-12 18:24:06,186 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-09-12 18:24:06,186 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-09-12 18:24:06,187 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-09-12 18:24:06,187 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-09-12 18:24:06,191 INFO L153 SettingsManager]: * Use SBE=true [2024-09-12 18:24:06,191 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-09-12 18:24:06,191 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-09-12 18:24:06,192 INFO L153 SettingsManager]: * sizeof long=4 [2024-09-12 18:24:06,192 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-09-12 18:24:06,192 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-09-12 18:24:06,192 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-09-12 18:24:06,193 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-09-12 18:24:06,193 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-09-12 18:24:06,193 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-09-12 18:24:06,193 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-09-12 18:24:06,194 INFO L153 SettingsManager]: * sizeof long double=12 [2024-09-12 18:24:06,194 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-09-12 18:24:06,194 INFO L153 SettingsManager]: * Use constant arrays=true [2024-09-12 18:24:06,194 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-09-12 18:24:06,195 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-09-12 18:24:06,195 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-09-12 18:24:06,195 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-09-12 18:24:06,195 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-12 18:24:06,196 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-09-12 18:24:06,196 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-09-12 18:24:06,200 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-09-12 18:24:06,210 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-09-12 18:24:06,210 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-09-12 18:24:06,211 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-09-12 18:24:06,211 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-09-12 18:24:06,212 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-09-12 18:24:06,213 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-09-12 18:24:06,213 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/certificate-witnesses-artifact/automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1e47fbc54bff4eeebe072cdb8acf7cfe734a91f148fd421ae1769ba3b81a6f5a Applying setting for plugin de.uni_freiburg.informatik.ultimate.boogie.procedureinliner: Inline calls to implemented procedures -> NEVER Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> All Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: YAML Format version -> 2.1 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of signed integer overflows -> true [2024-09-12 18:24:06,512 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-09-12 18:24:06,530 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-09-12 18:24:06,532 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-09-12 18:24:06,533 INFO L270 PluginConnector]: Initializing CDTParser... [2024-09-12 18:24:06,534 INFO L274 PluginConnector]: CDTParser initialized [2024-09-12 18:24:06,535 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/automizer/../sv-benchmarks/c/verifythis/lcp.c [2024-09-12 18:24:08,257 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-09-12 18:24:08,647 INFO L384 CDTParser]: Found 1 translation units. [2024-09-12 18:24:08,647 INFO L180 CDTParser]: Scanning /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/verifythis/lcp.c [2024-09-12 18:24:08,660 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/certificate-witnesses-artifact/automizer/data/49a4c5710/7a9ad1f07e774462a1dd7d8dfebaacfc/FLAGc083debd7 [2024-09-12 18:24:08,695 INFO L435 CDTParser]: Successfully deleted /storage/repos/certificate-witnesses-artifact/automizer/data/49a4c5710/7a9ad1f07e774462a1dd7d8dfebaacfc [2024-09-12 18:24:08,698 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-09-12 18:24:08,704 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-09-12 18:24:08,708 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-09-12 18:24:08,708 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-09-12 18:24:08,719 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-09-12 18:24:08,720 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.09 06:24:08" (1/1) ... [2024-09-12 18:24:08,721 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@67eeb6a8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:24:08, skipping insertion in model container [2024-09-12 18:24:08,725 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.09 06:24:08" (1/1) ... [2024-09-12 18:24:08,761 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-09-12 18:24:08,994 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/verifythis/lcp.c[515,528] [2024-09-12 18:24:09,043 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-12 18:24:09,059 INFO L200 MainTranslator]: Completed pre-run [2024-09-12 18:24:09,075 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/verifythis/lcp.c[515,528] [2024-09-12 18:24:09,093 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-12 18:24:09,113 INFO L204 MainTranslator]: Completed translation [2024-09-12 18:24:09,114 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:24:09 WrapperNode [2024-09-12 18:24:09,114 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-09-12 18:24:09,115 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-09-12 18:24:09,116 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-09-12 18:24:09,116 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-09-12 18:24:09,123 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:24:09" (1/1) ... [2024-09-12 18:24:09,134 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:24:09" (1/1) ... [2024-09-12 18:24:09,148 INFO L138 Inliner]: procedures = 20, calls = 29, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2024-09-12 18:24:09,148 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-09-12 18:24:09,149 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-09-12 18:24:09,149 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-09-12 18:24:09,149 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-09-12 18:24:09,160 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:24:09" (1/1) ... [2024-09-12 18:24:09,160 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:24:09" (1/1) ... [2024-09-12 18:24:09,163 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:24:09" (1/1) ... [2024-09-12 18:24:09,186 INFO L175 MemorySlicer]: Split 15 memory accesses to 3 slices as follows [2, 6, 7]. 47 percent of accesses are in the largest equivalence class. The 8 initializations are split as follows [2, 6, 0]. The 1 writes are split as follows [0, 0, 1]. [2024-09-12 18:24:09,186 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:24:09" (1/1) ... [2024-09-12 18:24:09,187 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:24:09" (1/1) ... [2024-09-12 18:24:09,197 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:24:09" (1/1) ... [2024-09-12 18:24:09,204 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:24:09" (1/1) ... [2024-09-12 18:24:09,206 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:24:09" (1/1) ... [2024-09-12 18:24:09,209 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:24:09" (1/1) ... [2024-09-12 18:24:09,211 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-09-12 18:24:09,215 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-09-12 18:24:09,215 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-09-12 18:24:09,215 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-09-12 18:24:09,216 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:24:09" (1/1) ... [2024-09-12 18:24:09,222 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-12 18:24:09,233 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:24:09,252 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 18:24:09,261 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 18:24:09,307 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-09-12 18:24:09,308 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-09-12 18:24:09,308 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-09-12 18:24:09,308 INFO L130 BoogieDeclarations]: Found specification of procedure main [2024-09-12 18:24:09,309 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2024-09-12 18:24:09,309 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-09-12 18:24:09,309 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-09-12 18:24:09,309 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-09-12 18:24:09,310 INFO L130 BoogieDeclarations]: Found specification of procedure check [2024-09-12 18:24:09,310 INFO L138 BoogieDeclarations]: Found implementation of procedure check [2024-09-12 18:24:09,311 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2024-09-12 18:24:09,311 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2024-09-12 18:24:09,311 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-09-12 18:24:09,311 INFO L130 BoogieDeclarations]: Found specification of procedure lcp [2024-09-12 18:24:09,312 INFO L138 BoogieDeclarations]: Found implementation of procedure lcp [2024-09-12 18:24:09,312 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-09-12 18:24:09,312 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-09-12 18:24:09,312 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-09-12 18:24:09,312 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-09-12 18:24:09,313 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-09-12 18:24:09,313 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2024-09-12 18:24:09,313 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2024-09-12 18:24:09,313 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-09-12 18:24:09,314 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-09-12 18:24:09,314 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-09-12 18:24:09,408 INFO L242 CfgBuilder]: Building ICFG [2024-09-12 18:24:09,410 INFO L268 CfgBuilder]: Building CFG for each procedure with an implementation [2024-09-12 18:24:09,729 INFO L? ?]: Removed 66 outVars from TransFormulas that were not future-live. [2024-09-12 18:24:09,729 INFO L291 CfgBuilder]: Performing block encoding [2024-09-12 18:24:09,777 INFO L313 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-09-12 18:24:09,778 INFO L318 CfgBuilder]: Removed 1 assume(true) statements. [2024-09-12 18:24:09,778 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.09 06:24:09 BoogieIcfgContainer [2024-09-12 18:24:09,778 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-09-12 18:24:09,780 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-09-12 18:24:09,781 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-09-12 18:24:09,784 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-09-12 18:24:09,784 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.09 06:24:08" (1/3) ... [2024-09-12 18:24:09,785 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c9824f1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.09 06:24:09, skipping insertion in model container [2024-09-12 18:24:09,785 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:24:09" (2/3) ... [2024-09-12 18:24:09,786 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c9824f1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.09 06:24:09, skipping insertion in model container [2024-09-12 18:24:09,787 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.09 06:24:09" (3/3) ... [2024-09-12 18:24:09,788 INFO L112 eAbstractionObserver]: Analyzing ICFG lcp.c [2024-09-12 18:24:09,808 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:All NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-09-12 18:24:09,808 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 23 error locations. [2024-09-12 18:24:09,870 INFO L335 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-09-12 18:24:09,877 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;@29ded96f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-09-12 18:24:09,877 INFO L337 AbstractCegarLoop]: Starting to check reachability of 23 error locations. [2024-09-12 18:24:09,882 INFO L276 IsEmpty]: Start isEmpty. Operand has 89 states, 48 states have (on average 1.6458333333333333) internal successors, (79), 72 states have internal predecessors, (79), 10 states have call successors, (10), 7 states have call predecessors, (10), 7 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-09-12 18:24:09,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2024-09-12 18:24:09,889 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:24:09,890 INFO L216 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:24:09,891 INFO L399 AbstractCegarLoop]: === Iteration 1 === Targeting lcpErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [checkErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, checkErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, checkErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2024-09-12 18:24:09,896 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:24:09,898 INFO L85 PathProgramCache]: Analyzing trace with hash -1342112134, now seen corresponding path program 1 times [2024-09-12 18:24:09,906 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:24:09,907 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1510562058] [2024-09-12 18:24:09,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:24:09,908 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:24:10,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:24:10,112 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:24:10,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:24:10,135 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:24:10,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:24:10,158 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 18:24:10,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:24:10,168 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-09-12 18:24:10,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:24:10,180 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-09-12 18:24:10,180 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:24:10,181 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1510562058] [2024-09-12 18:24:10,181 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1510562058] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:24:10,181 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:24:10,182 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-12 18:24:10,185 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [388855296] [2024-09-12 18:24:10,185 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:24:10,189 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-09-12 18:24:10,190 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:24:10,212 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-09-12 18:24:10,213 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-12 18:24:10,215 INFO L87 Difference]: Start difference. First operand has 89 states, 48 states have (on average 1.6458333333333333) internal successors, (79), 72 states have internal predecessors, (79), 10 states have call successors, (10), 7 states have call predecessors, (10), 7 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) Second operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 2 states have internal predecessors, (10), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-09-12 18:24:10,470 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:24:10,471 INFO L93 Difference]: Finished difference Result 172 states and 198 transitions. [2024-09-12 18:24:10,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-12 18:24:10,474 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 2 states have internal predecessors, (10), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 23 [2024-09-12 18:24:10,474 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:24:10,481 INFO L225 Difference]: With dead ends: 172 [2024-09-12 18:24:10,481 INFO L226 Difference]: Without dead ends: 83 [2024-09-12 18:24:10,484 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 11 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 18:24:10,487 INFO L434 NwaCegarLoop]: 18 mSDtfsCounter, 74 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 85 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 22 SdHoareTripleChecker+Invalid, 92 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 85 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 18:24:10,488 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [78 Valid, 22 Invalid, 92 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 85 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 18:24:10,502 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2024-09-12 18:24:10,524 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 83. [2024-09-12 18:24:10,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 83 states, 45 states have (on average 1.6) internal successors, (72), 68 states have internal predecessors, (72), 10 states have call successors, (10), 7 states have call predecessors, (10), 5 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-09-12 18:24:10,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 89 transitions. [2024-09-12 18:24:10,529 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 89 transitions. Word has length 23 [2024-09-12 18:24:10,530 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:24:10,530 INFO L474 AbstractCegarLoop]: Abstraction has 83 states and 89 transitions. [2024-09-12 18:24:10,530 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 2 states have internal predecessors, (10), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-09-12 18:24:10,531 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:24:10,531 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 89 transitions. [2024-09-12 18:24:10,532 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2024-09-12 18:24:10,532 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:24:10,532 INFO L216 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:24:10,532 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-09-12 18:24:10,533 INFO L399 AbstractCegarLoop]: === Iteration 2 === Targeting lcpErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [checkErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, checkErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, checkErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2024-09-12 18:24:10,533 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:24:10,533 INFO L85 PathProgramCache]: Analyzing trace with hash 1989045110, now seen corresponding path program 1 times [2024-09-12 18:24:10,533 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:24:10,534 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1849659322] [2024-09-12 18:24:10,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:24:10,534 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:24:10,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:24:10,673 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:24:10,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:24:10,679 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:24:10,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:24:10,688 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 18:24:10,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:24:10,692 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-09-12 18:24:10,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:24:10,699 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-09-12 18:24:10,699 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:24:10,700 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1849659322] [2024-09-12 18:24:10,700 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1849659322] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:24:10,700 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:24:10,700 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-09-12 18:24:10,700 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [895714320] [2024-09-12 18:24:10,700 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:24:10,702 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-09-12 18:24:10,702 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:24:10,702 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-09-12 18:24:10,703 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-09-12 18:24:10,703 INFO L87 Difference]: Start difference. First operand 83 states and 89 transitions. Second operand has 6 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 2 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-09-12 18:24:10,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:24:10,983 INFO L93 Difference]: Finished difference Result 98 states and 113 transitions. [2024-09-12 18:24:10,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-12 18:24:10,984 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 2 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 23 [2024-09-12 18:24:10,984 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:24:10,986 INFO L225 Difference]: With dead ends: 98 [2024-09-12 18:24:10,986 INFO L226 Difference]: Without dead ends: 96 [2024-09-12 18:24:10,986 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-09-12 18:24:10,987 INFO L434 NwaCegarLoop]: 14 mSDtfsCounter, 160 mSDsluCounter, 35 mSDsCounter, 0 mSdLazyCounter, 279 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 164 SdHoareTripleChecker+Valid, 49 SdHoareTripleChecker+Invalid, 286 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 279 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 18:24:10,988 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [164 Valid, 49 Invalid, 286 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 279 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 18:24:10,989 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2024-09-12 18:24:11,000 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 91. [2024-09-12 18:24:11,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 91 states, 53 states have (on average 1.6037735849056605) internal successors, (85), 76 states have internal predecessors, (85), 10 states have call successors, (10), 7 states have call predecessors, (10), 5 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-09-12 18:24:11,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 102 transitions. [2024-09-12 18:24:11,003 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 102 transitions. Word has length 23 [2024-09-12 18:24:11,004 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:24:11,004 INFO L474 AbstractCegarLoop]: Abstraction has 91 states and 102 transitions. [2024-09-12 18:24:11,004 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 2 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-09-12 18:24:11,005 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:24:11,005 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 102 transitions. [2024-09-12 18:24:11,005 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2024-09-12 18:24:11,006 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:24:11,006 INFO L216 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:24:11,006 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-09-12 18:24:11,006 INFO L399 AbstractCegarLoop]: === Iteration 3 === Targeting lcpErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [checkErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, checkErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, checkErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2024-09-12 18:24:11,006 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:24:11,006 INFO L85 PathProgramCache]: Analyzing trace with hash 1530856367, now seen corresponding path program 1 times [2024-09-12 18:24:11,007 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:24:11,007 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2041328797] [2024-09-12 18:24:11,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:24:11,007 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:24:11,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:24:11,106 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:24:11,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:24:11,115 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:24:11,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:24:11,135 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 18:24:11,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:24:11,141 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-09-12 18:24:11,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:24:11,149 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-09-12 18:24:11,150 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:24:11,150 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2041328797] [2024-09-12 18:24:11,150 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2041328797] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:24:11,150 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:24:11,151 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-09-12 18:24:11,151 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2124297953] [2024-09-12 18:24:11,151 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:24:11,151 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-09-12 18:24:11,152 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:24:11,152 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-09-12 18:24:11,153 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-09-12 18:24:11,153 INFO L87 Difference]: Start difference. First operand 91 states and 102 transitions. Second operand has 6 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 2 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-09-12 18:24:11,415 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:24:11,416 INFO L93 Difference]: Finished difference Result 98 states and 111 transitions. [2024-09-12 18:24:11,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-12 18:24:11,417 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 2 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 24 [2024-09-12 18:24:11,417 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:24:11,419 INFO L225 Difference]: With dead ends: 98 [2024-09-12 18:24:11,419 INFO L226 Difference]: Without dead ends: 96 [2024-09-12 18:24:11,420 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-09-12 18:24:11,421 INFO L434 NwaCegarLoop]: 14 mSDtfsCounter, 155 mSDsluCounter, 35 mSDsCounter, 0 mSdLazyCounter, 279 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 159 SdHoareTripleChecker+Valid, 49 SdHoareTripleChecker+Invalid, 286 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 279 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 18:24:11,422 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [159 Valid, 49 Invalid, 286 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 279 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 18:24:11,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2024-09-12 18:24:11,442 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 92. [2024-09-12 18:24:11,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 92 states, 54 states have (on average 1.5740740740740742) internal successors, (85), 77 states have internal predecessors, (85), 10 states have call successors, (10), 7 states have call predecessors, (10), 5 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-09-12 18:24:11,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 102 transitions. [2024-09-12 18:24:11,449 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 102 transitions. Word has length 24 [2024-09-12 18:24:11,449 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:24:11,449 INFO L474 AbstractCegarLoop]: Abstraction has 92 states and 102 transitions. [2024-09-12 18:24:11,450 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 2 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-09-12 18:24:11,450 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:24:11,450 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 102 transitions. [2024-09-12 18:24:11,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2024-09-12 18:24:11,451 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:24:11,451 INFO L216 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:24:11,451 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-09-12 18:24:11,451 INFO L399 AbstractCegarLoop]: === Iteration 4 === Targeting lcpErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [checkErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, checkErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, checkErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2024-09-12 18:24:11,451 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:24:11,451 INFO L85 PathProgramCache]: Analyzing trace with hash -2020810511, now seen corresponding path program 1 times [2024-09-12 18:24:11,451 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:24:11,452 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [152217268] [2024-09-12 18:24:11,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:24:11,452 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:24:11,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:24:11,565 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:24:11,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:24:11,569 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:24:11,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:24:11,577 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 18:24:11,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:24:11,580 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-09-12 18:24:11,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:24:11,584 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-09-12 18:24:11,585 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:24:11,585 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [152217268] [2024-09-12 18:24:11,585 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [152217268] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:24:11,585 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:24:11,585 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-09-12 18:24:11,586 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2018231924] [2024-09-12 18:24:11,586 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:24:11,586 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-09-12 18:24:11,586 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:24:11,587 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-09-12 18:24:11,587 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-09-12 18:24:11,587 INFO L87 Difference]: Start difference. First operand 92 states and 102 transitions. Second operand has 6 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 2 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-09-12 18:24:11,869 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:24:11,869 INFO L93 Difference]: Finished difference Result 98 states and 109 transitions. [2024-09-12 18:24:11,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-12 18:24:11,870 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 2 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 26 [2024-09-12 18:24:11,870 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:24:11,871 INFO L225 Difference]: With dead ends: 98 [2024-09-12 18:24:11,871 INFO L226 Difference]: Without dead ends: 96 [2024-09-12 18:24:11,871 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-09-12 18:24:11,876 INFO L434 NwaCegarLoop]: 14 mSDtfsCounter, 149 mSDsluCounter, 35 mSDsCounter, 0 mSdLazyCounter, 279 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 153 SdHoareTripleChecker+Valid, 49 SdHoareTripleChecker+Invalid, 286 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 279 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 18:24:11,876 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [153 Valid, 49 Invalid, 286 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 279 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 18:24:11,877 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2024-09-12 18:24:11,902 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 93. [2024-09-12 18:24:11,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93 states, 55 states have (on average 1.5454545454545454) internal successors, (85), 78 states have internal predecessors, (85), 10 states have call successors, (10), 7 states have call predecessors, (10), 5 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-09-12 18:24:11,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 102 transitions. [2024-09-12 18:24:11,903 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 102 transitions. Word has length 26 [2024-09-12 18:24:11,904 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:24:11,904 INFO L474 AbstractCegarLoop]: Abstraction has 93 states and 102 transitions. [2024-09-12 18:24:11,904 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 2 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-09-12 18:24:11,904 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:24:11,904 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 102 transitions. [2024-09-12 18:24:11,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2024-09-12 18:24:11,905 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:24:11,905 INFO L216 NwaCegarLoop]: trace histogram [2, 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 18:24:11,908 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-09-12 18:24:11,908 INFO L399 AbstractCegarLoop]: === Iteration 5 === Targeting lcpErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [checkErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, checkErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, checkErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2024-09-12 18:24:11,909 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:24:11,909 INFO L85 PathProgramCache]: Analyzing trace with hash 1779383707, now seen corresponding path program 1 times [2024-09-12 18:24:11,909 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:24:11,909 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2112700269] [2024-09-12 18:24:11,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:24:11,909 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:24:11,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:24:12,007 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:24:12,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:24:12,012 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:24:12,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:24:12,020 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 18:24:12,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:24:12,024 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-09-12 18:24:12,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:24:12,029 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-09-12 18:24:12,029 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:24:12,029 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2112700269] [2024-09-12 18:24:12,029 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2112700269] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:24:12,029 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:24:12,030 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-09-12 18:24:12,030 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1530007447] [2024-09-12 18:24:12,030 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:24:12,030 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-09-12 18:24:12,030 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:24:12,031 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-09-12 18:24:12,031 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-09-12 18:24:12,031 INFO L87 Difference]: Start difference. First operand 93 states and 102 transitions. Second operand has 6 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 2 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-09-12 18:24:12,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:24:12,241 INFO L93 Difference]: Finished difference Result 98 states and 107 transitions. [2024-09-12 18:24:12,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-12 18:24:12,241 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 2 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 27 [2024-09-12 18:24:12,241 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:24:12,242 INFO L225 Difference]: With dead ends: 98 [2024-09-12 18:24:12,242 INFO L226 Difference]: Without dead ends: 96 [2024-09-12 18:24:12,243 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-09-12 18:24:12,244 INFO L434 NwaCegarLoop]: 14 mSDtfsCounter, 144 mSDsluCounter, 35 mSDsCounter, 0 mSdLazyCounter, 279 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 148 SdHoareTripleChecker+Valid, 49 SdHoareTripleChecker+Invalid, 286 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 279 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 18:24:12,247 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [148 Valid, 49 Invalid, 286 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 279 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 18:24:12,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2024-09-12 18:24:12,266 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 94. [2024-09-12 18:24:12,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 94 states, 56 states have (on average 1.5178571428571428) internal successors, (85), 79 states have internal predecessors, (85), 10 states have call successors, (10), 7 states have call predecessors, (10), 5 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-09-12 18:24:12,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 102 transitions. [2024-09-12 18:24:12,270 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 102 transitions. Word has length 27 [2024-09-12 18:24:12,270 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:24:12,270 INFO L474 AbstractCegarLoop]: Abstraction has 94 states and 102 transitions. [2024-09-12 18:24:12,270 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 2 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-09-12 18:24:12,271 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:24:12,271 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 102 transitions. [2024-09-12 18:24:12,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2024-09-12 18:24:12,272 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:24:12,272 INFO L216 NwaCegarLoop]: trace histogram [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] [2024-09-12 18:24:12,273 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-09-12 18:24:12,273 INFO L399 AbstractCegarLoop]: === Iteration 6 === Targeting lcpErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [checkErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, checkErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, checkErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2024-09-12 18:24:12,273 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:24:12,274 INFO L85 PathProgramCache]: Analyzing trace with hash 596499022, now seen corresponding path program 1 times [2024-09-12 18:24:12,274 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:24:12,274 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [272482688] [2024-09-12 18:24:12,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:24:12,274 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:24:12,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:24:12,328 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:24:12,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:24:12,336 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:24:12,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:24:12,350 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 18:24:12,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:24:12,355 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-09-12 18:24:12,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:24:12,365 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-09-12 18:24:12,365 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:24:12,365 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [272482688] [2024-09-12 18:24:12,366 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [272482688] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:24:12,366 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:24:12,366 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-09-12 18:24:12,366 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1230356502] [2024-09-12 18:24:12,366 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:24:12,367 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-12 18:24:12,372 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:24:12,376 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-12 18:24:12,376 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-09-12 18:24:12,377 INFO L87 Difference]: Start difference. First operand 94 states and 102 transitions. Second operand has 4 states, 4 states have (on average 4.0) internal successors, (16), 3 states have internal predecessors, (16), 1 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-09-12 18:24:12,547 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:24:12,547 INFO L93 Difference]: Finished difference Result 164 states and 177 transitions. [2024-09-12 18:24:12,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-12 18:24:12,548 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.0) internal successors, (16), 3 states have internal predecessors, (16), 1 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 29 [2024-09-12 18:24:12,548 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:24:12,549 INFO L225 Difference]: With dead ends: 164 [2024-09-12 18:24:12,549 INFO L226 Difference]: Without dead ends: 95 [2024-09-12 18:24:12,550 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-09-12 18:24:12,551 INFO L434 NwaCegarLoop]: 15 mSDtfsCounter, 73 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 155 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 76 SdHoareTripleChecker+Valid, 29 SdHoareTripleChecker+Invalid, 161 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 155 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 18:24:12,551 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [76 Valid, 29 Invalid, 161 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 155 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 18:24:12,552 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2024-09-12 18:24:12,563 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 95. [2024-09-12 18:24:12,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 95 states, 57 states have (on average 1.5087719298245614) internal successors, (86), 80 states have internal predecessors, (86), 10 states have call successors, (10), 7 states have call predecessors, (10), 5 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-09-12 18:24:12,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 103 transitions. [2024-09-12 18:24:12,565 INFO L78 Accepts]: Start accepts. Automaton has 95 states and 103 transitions. Word has length 29 [2024-09-12 18:24:12,565 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:24:12,565 INFO L474 AbstractCegarLoop]: Abstraction has 95 states and 103 transitions. [2024-09-12 18:24:12,566 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.0) internal successors, (16), 3 states have internal predecessors, (16), 1 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-09-12 18:24:12,566 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:24:12,566 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 103 transitions. [2024-09-12 18:24:12,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2024-09-12 18:24:12,567 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:24:12,567 INFO L216 NwaCegarLoop]: trace histogram [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 18:24:12,567 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-09-12 18:24:12,568 INFO L399 AbstractCegarLoop]: === Iteration 7 === Targeting lcpErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [checkErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, checkErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, checkErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2024-09-12 18:24:12,568 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:24:12,568 INFO L85 PathProgramCache]: Analyzing trace with hash 1877831688, now seen corresponding path program 1 times [2024-09-12 18:24:12,568 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:24:12,568 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [437523] [2024-09-12 18:24:12,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:24:12,569 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:24:12,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:24:12,624 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:24:12,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:24:12,628 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:24:12,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:24:12,635 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 18:24:12,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:24:12,638 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-09-12 18:24:12,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:24:12,640 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-09-12 18:24:12,640 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:24:12,641 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [437523] [2024-09-12 18:24:12,641 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [437523] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:24:12,641 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:24:12,641 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-09-12 18:24:12,641 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [448312697] [2024-09-12 18:24:12,641 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:24:12,642 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-12 18:24:12,642 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:24:12,642 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-12 18:24:12,643 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-09-12 18:24:12,643 INFO L87 Difference]: Start difference. First operand 95 states and 103 transitions. Second operand has 5 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 1 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-09-12 18:24:12,838 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:24:12,839 INFO L93 Difference]: Finished difference Result 102 states and 111 transitions. [2024-09-12 18:24:12,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-12 18:24:12,840 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 1 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 33 [2024-09-12 18:24:12,840 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:24:12,841 INFO L225 Difference]: With dead ends: 102 [2024-09-12 18:24:12,841 INFO L226 Difference]: Without dead ends: 100 [2024-09-12 18:24:12,842 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-09-12 18:24:12,842 INFO L434 NwaCegarLoop]: 15 mSDtfsCounter, 96 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 232 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 99 SdHoareTripleChecker+Valid, 41 SdHoareTripleChecker+Invalid, 239 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 232 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 18:24:12,843 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [99 Valid, 41 Invalid, 239 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 232 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 18:24:12,844 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100 states. [2024-09-12 18:24:12,858 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 98. [2024-09-12 18:24:12,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 98 states, 60 states have (on average 1.5) internal successors, (90), 83 states have internal predecessors, (90), 10 states have call successors, (10), 7 states have call predecessors, (10), 5 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-09-12 18:24:12,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 107 transitions. [2024-09-12 18:24:12,860 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 107 transitions. Word has length 33 [2024-09-12 18:24:12,860 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:24:12,861 INFO L474 AbstractCegarLoop]: Abstraction has 98 states and 107 transitions. [2024-09-12 18:24:12,861 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 1 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-09-12 18:24:12,861 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:24:12,861 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 107 transitions. [2024-09-12 18:24:12,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2024-09-12 18:24:12,862 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:24:12,862 INFO L216 NwaCegarLoop]: trace histogram [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 18:24:12,862 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-09-12 18:24:12,863 INFO L399 AbstractCegarLoop]: === Iteration 8 === Targeting lcpErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [checkErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, checkErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, checkErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2024-09-12 18:24:12,863 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:24:12,863 INFO L85 PathProgramCache]: Analyzing trace with hash 709992132, now seen corresponding path program 1 times [2024-09-12 18:24:12,864 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:24:12,864 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1112912299] [2024-09-12 18:24:12,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:24:12,864 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:24:12,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:24:12,906 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:24:12,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:24:12,909 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:24:12,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:24:12,915 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 18:24:12,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:24:12,918 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-09-12 18:24:12,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:24:12,921 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-09-12 18:24:12,922 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:24:12,922 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1112912299] [2024-09-12 18:24:12,922 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1112912299] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:24:12,922 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:24:12,922 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-09-12 18:24:12,922 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [935443991] [2024-09-12 18:24:12,922 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:24:12,923 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-12 18:24:12,923 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:24:12,923 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-12 18:24:12,924 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-09-12 18:24:12,924 INFO L87 Difference]: Start difference. First operand 98 states and 107 transitions. Second operand has 5 states, 5 states have (on average 4.4) internal successors, (22), 4 states have internal predecessors, (22), 1 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-09-12 18:24:13,090 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:24:13,090 INFO L93 Difference]: Finished difference Result 179 states and 195 transitions. [2024-09-12 18:24:13,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-12 18:24:13,091 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.4) internal successors, (22), 4 states have internal predecessors, (22), 1 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 35 [2024-09-12 18:24:13,092 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:24:13,093 INFO L225 Difference]: With dead ends: 179 [2024-09-12 18:24:13,093 INFO L226 Difference]: Without dead ends: 102 [2024-09-12 18:24:13,094 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-09-12 18:24:13,095 INFO L434 NwaCegarLoop]: 15 mSDtfsCounter, 76 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 231 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 79 SdHoareTripleChecker+Valid, 41 SdHoareTripleChecker+Invalid, 238 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 231 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 18:24:13,095 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [79 Valid, 41 Invalid, 238 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 231 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 18:24:13,096 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102 states. [2024-09-12 18:24:13,107 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102 to 100. [2024-09-12 18:24:13,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 100 states, 62 states have (on average 1.4838709677419355) internal successors, (92), 85 states have internal predecessors, (92), 10 states have call successors, (10), 7 states have call predecessors, (10), 5 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-09-12 18:24:13,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 109 transitions. [2024-09-12 18:24:13,109 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 109 transitions. Word has length 35 [2024-09-12 18:24:13,109 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:24:13,109 INFO L474 AbstractCegarLoop]: Abstraction has 100 states and 109 transitions. [2024-09-12 18:24:13,109 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.4) internal successors, (22), 4 states have internal predecessors, (22), 1 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-09-12 18:24:13,110 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:24:13,110 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 109 transitions. [2024-09-12 18:24:13,111 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2024-09-12 18:24:13,111 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:24:13,111 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:24:13,111 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-09-12 18:24:13,111 INFO L399 AbstractCegarLoop]: === Iteration 9 === Targeting checkErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [checkErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, checkErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, checkErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2024-09-12 18:24:13,112 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:24:13,112 INFO L85 PathProgramCache]: Analyzing trace with hash 1981567675, now seen corresponding path program 1 times [2024-09-12 18:24:13,112 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:24:13,112 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [190919604] [2024-09-12 18:24:13,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:24:13,112 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:24:13,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:24:13,247 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:24:13,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:24:13,250 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:24:13,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:24:13,281 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 18:24:13,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:24:13,286 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-09-12 18:24:13,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:24:13,289 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-09-12 18:24:13,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:24:13,368 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-09-12 18:24:13,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:24:13,372 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-09-12 18:24:13,373 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:24:13,373 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [190919604] [2024-09-12 18:24:13,373 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [190919604] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:24:13,373 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [736080921] [2024-09-12 18:24:13,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:24:13,373 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:24:13,374 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:24:13,379 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 18:24:13,387 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 18:24:13,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:24:13,513 INFO L262 TraceCheckSpWp]: Trace formula consists of 176 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-09-12 18:24:13,517 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:24:13,689 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-09-12 18:24:13,689 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 18:24:13,690 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [736080921] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:24:13,690 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-09-12 18:24:13,690 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [11] total 15 [2024-09-12 18:24:13,690 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2131747506] [2024-09-12 18:24:13,690 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:24:13,690 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-09-12 18:24:13,690 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:24:13,691 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-09-12 18:24:13,691 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=205, Unknown=0, NotChecked=0, Total=240 [2024-09-12 18:24:13,691 INFO L87 Difference]: Start difference. First operand 100 states and 109 transitions. Second operand has 8 states, 6 states have (on average 3.6666666666666665) internal successors, (22), 6 states have internal predecessors, (22), 3 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2024-09-12 18:24:13,842 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:24:13,842 INFO L93 Difference]: Finished difference Result 100 states and 109 transitions. [2024-09-12 18:24:13,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-09-12 18:24:13,845 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 3.6666666666666665) internal successors, (22), 6 states have internal predecessors, (22), 3 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) Word has length 39 [2024-09-12 18:24:13,846 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:24:13,847 INFO L225 Difference]: With dead ends: 100 [2024-09-12 18:24:13,847 INFO L226 Difference]: Without dead ends: 99 [2024-09-12 18:24:13,847 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=46, Invalid=260, Unknown=0, NotChecked=0, Total=306 [2024-09-12 18:24:13,848 INFO L434 NwaCegarLoop]: 65 mSDtfsCounter, 45 mSDsluCounter, 354 mSDsCounter, 0 mSdLazyCounter, 135 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 419 SdHoareTripleChecker+Invalid, 138 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 135 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 18:24:13,848 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 419 Invalid, 138 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 135 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 18:24:13,848 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2024-09-12 18:24:13,875 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 99. [2024-09-12 18:24:13,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 99 states, 62 states have (on average 1.467741935483871) internal successors, (91), 84 states have internal predecessors, (91), 10 states have call successors, (10), 7 states have call predecessors, (10), 5 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-09-12 18:24:13,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 108 transitions. [2024-09-12 18:24:13,876 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 108 transitions. Word has length 39 [2024-09-12 18:24:13,876 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:24:13,876 INFO L474 AbstractCegarLoop]: Abstraction has 99 states and 108 transitions. [2024-09-12 18:24:13,876 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 3.6666666666666665) internal successors, (22), 6 states have internal predecessors, (22), 3 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2024-09-12 18:24:13,877 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:24:13,877 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 108 transitions. [2024-09-12 18:24:13,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2024-09-12 18:24:13,882 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:24:13,882 INFO L216 NwaCegarLoop]: trace histogram [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 18:24:13,921 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 18:24:14,082 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,2 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:24:14,083 INFO L399 AbstractCegarLoop]: === Iteration 10 === Targeting lcpErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [checkErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, checkErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, checkErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2024-09-12 18:24:14,083 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:24:14,083 INFO L85 PathProgramCache]: Analyzing trace with hash 1772805824, now seen corresponding path program 1 times [2024-09-12 18:24:14,084 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:24:14,084 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2121197385] [2024-09-12 18:24:14,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:24:14,084 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:24:14,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:24:14,253 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:24:14,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:24:14,256 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:24:14,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:24:14,275 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 18:24:14,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:24:14,278 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-09-12 18:24:14,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:24:14,283 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-09-12 18:24:14,283 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:24:14,283 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2121197385] [2024-09-12 18:24:14,284 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2121197385] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:24:14,284 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1834257878] [2024-09-12 18:24:14,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:24:14,284 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:24:14,284 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:24:14,287 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 18:24:14,293 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 18:24:14,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:24:14,357 INFO L262 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-09-12 18:24:14,358 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:24:14,478 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-09-12 18:24:14,478 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 18:24:14,479 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1834257878] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:24:14,479 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-09-12 18:24:14,479 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [7] total 10 [2024-09-12 18:24:14,479 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [71760799] [2024-09-12 18:24:14,479 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:24:14,480 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-09-12 18:24:14,480 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:24:14,480 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-09-12 18:24:14,480 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2024-09-12 18:24:14,480 INFO L87 Difference]: Start difference. First operand 99 states and 108 transitions. Second operand has 7 states, 5 states have (on average 4.8) internal successors, (24), 6 states have internal predecessors, (24), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-09-12 18:24:14,609 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:24:14,609 INFO L93 Difference]: Finished difference Result 103 states and 112 transitions. [2024-09-12 18:24:14,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-09-12 18:24:14,610 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 5 states have (on average 4.8) internal successors, (24), 6 states have internal predecessors, (24), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 37 [2024-09-12 18:24:14,610 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:24:14,611 INFO L225 Difference]: With dead ends: 103 [2024-09-12 18:24:14,611 INFO L226 Difference]: Without dead ends: 100 [2024-09-12 18:24:14,611 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=144, Unknown=0, NotChecked=0, Total=182 [2024-09-12 18:24:14,612 INFO L434 NwaCegarLoop]: 68 mSDtfsCounter, 44 mSDsluCounter, 306 mSDsCounter, 0 mSdLazyCounter, 137 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 374 SdHoareTripleChecker+Invalid, 139 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 137 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 18:24:14,612 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 374 Invalid, 139 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 137 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 18:24:14,613 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100 states. [2024-09-12 18:24:14,627 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 96. [2024-09-12 18:24:14,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 96 states, 62 states have (on average 1.4193548387096775) internal successors, (88), 81 states have internal predecessors, (88), 10 states have call successors, (10), 7 states have call predecessors, (10), 5 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-09-12 18:24:14,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 105 transitions. [2024-09-12 18:24:14,628 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 105 transitions. Word has length 37 [2024-09-12 18:24:14,629 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:24:14,629 INFO L474 AbstractCegarLoop]: Abstraction has 96 states and 105 transitions. [2024-09-12 18:24:14,629 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 5 states have (on average 4.8) internal successors, (24), 6 states have internal predecessors, (24), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-09-12 18:24:14,629 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:24:14,629 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 105 transitions. [2024-09-12 18:24:14,630 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2024-09-12 18:24:14,631 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:24:14,632 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:24:14,647 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-09-12 18:24:14,835 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-09-12 18:24:14,836 INFO L399 AbstractCegarLoop]: === Iteration 11 === Targeting checkErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [checkErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, checkErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, checkErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2024-09-12 18:24:14,836 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:24:14,836 INFO L85 PathProgramCache]: Analyzing trace with hash 1299055835, now seen corresponding path program 1 times [2024-09-12 18:24:14,837 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:24:14,837 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [377389772] [2024-09-12 18:24:14,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:24:14,837 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:24:14,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:24:15,024 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:24:15,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:24:15,028 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:24:15,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:24:15,036 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 18:24:15,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:24:15,039 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-09-12 18:24:15,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:24:15,042 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-09-12 18:24:15,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:24:15,072 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-09-12 18:24:15,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:24:15,100 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-09-12 18:24:15,101 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:24:15,101 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [377389772] [2024-09-12 18:24:15,101 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [377389772] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:24:15,101 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:24:15,101 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-09-12 18:24:15,102 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1151492567] [2024-09-12 18:24:15,102 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:24:15,102 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-09-12 18:24:15,102 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:24:15,103 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-09-12 18:24:15,103 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=131, Unknown=0, NotChecked=0, Total=156 [2024-09-12 18:24:15,103 INFO L87 Difference]: Start difference. First operand 96 states and 105 transitions. Second operand has 13 states, 8 states have (on average 2.875) internal successors, (23), 10 states have internal predecessors, (23), 4 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (6), 4 states have call predecessors, (6), 3 states have call successors, (6) [2024-09-12 18:24:15,560 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:24:15,561 INFO L93 Difference]: Finished difference Result 139 states and 150 transitions. [2024-09-12 18:24:15,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-09-12 18:24:15,561 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 8 states have (on average 2.875) internal successors, (23), 10 states have internal predecessors, (23), 4 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (6), 4 states have call predecessors, (6), 3 states have call successors, (6) Word has length 40 [2024-09-12 18:24:15,562 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:24:15,563 INFO L225 Difference]: With dead ends: 139 [2024-09-12 18:24:15,563 INFO L226 Difference]: Without dead ends: 96 [2024-09-12 18:24:15,563 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=51, Invalid=291, Unknown=0, NotChecked=0, Total=342 [2024-09-12 18:24:15,564 INFO L434 NwaCegarLoop]: 13 mSDtfsCounter, 95 mSDsluCounter, 93 mSDsCounter, 0 mSdLazyCounter, 747 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 99 SdHoareTripleChecker+Valid, 106 SdHoareTripleChecker+Invalid, 756 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 747 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-09-12 18:24:15,564 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [99 Valid, 106 Invalid, 756 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 747 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-09-12 18:24:15,564 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2024-09-12 18:24:15,576 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 96. [2024-09-12 18:24:15,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 96 states, 62 states have (on average 1.3709677419354838) internal successors, (85), 81 states have internal predecessors, (85), 10 states have call successors, (10), 7 states have call predecessors, (10), 5 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-09-12 18:24:15,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 102 transitions. [2024-09-12 18:24:15,578 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 102 transitions. Word has length 40 [2024-09-12 18:24:15,578 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:24:15,578 INFO L474 AbstractCegarLoop]: Abstraction has 96 states and 102 transitions. [2024-09-12 18:24:15,578 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 8 states have (on average 2.875) internal successors, (23), 10 states have internal predecessors, (23), 4 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (6), 4 states have call predecessors, (6), 3 states have call successors, (6) [2024-09-12 18:24:15,579 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:24:15,579 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 102 transitions. [2024-09-12 18:24:15,579 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2024-09-12 18:24:15,579 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:24:15,580 INFO L216 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:24:15,580 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-09-12 18:24:15,580 INFO L399 AbstractCegarLoop]: === Iteration 12 === Targeting lcpErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [checkErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, checkErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, checkErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2024-09-12 18:24:15,580 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:24:15,580 INFO L85 PathProgramCache]: Analyzing trace with hash -877594203, now seen corresponding path program 1 times [2024-09-12 18:24:15,580 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:24:15,581 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1087130974] [2024-09-12 18:24:15,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:24:15,581 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:24:15,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:24:15,692 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:24:15,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:24:15,695 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:24:15,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:24:15,706 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 18:24:15,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:24:15,710 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-09-12 18:24:15,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:24:15,712 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-09-12 18:24:15,713 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:24:15,713 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1087130974] [2024-09-12 18:24:15,713 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1087130974] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:24:15,713 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2020586534] [2024-09-12 18:24:15,713 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:24:15,714 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:24:15,714 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:24:15,715 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 18:24:15,717 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 18:24:15,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:24:15,777 INFO L262 TraceCheckSpWp]: Trace formula consists of 150 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-09-12 18:24:15,779 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:24:15,874 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-09-12 18:24:15,874 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:24:15,981 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-09-12 18:24:15,982 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2020586534] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:24:15,982 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 18:24:15,982 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8, 8] total 13 [2024-09-12 18:24:15,982 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [802126739] [2024-09-12 18:24:15,982 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 18:24:15,983 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-09-12 18:24:15,983 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:24:15,983 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-09-12 18:24:15,984 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2024-09-12 18:24:15,984 INFO L87 Difference]: Start difference. First operand 96 states and 102 transitions. Second operand has 14 states, 13 states have (on average 3.1538461538461537) internal successors, (41), 12 states have internal predecessors, (41), 2 states have call successors, (7), 3 states have call predecessors, (7), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-09-12 18:24:16,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:24:16,499 INFO L93 Difference]: Finished difference Result 98 states and 104 transitions. [2024-09-12 18:24:16,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-09-12 18:24:16,500 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 3.1538461538461537) internal successors, (41), 12 states have internal predecessors, (41), 2 states have call successors, (7), 3 states have call predecessors, (7), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 38 [2024-09-12 18:24:16,500 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:24:16,501 INFO L225 Difference]: With dead ends: 98 [2024-09-12 18:24:16,501 INFO L226 Difference]: Without dead ends: 96 [2024-09-12 18:24:16,502 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 74 SyntacticMatches, 5 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 105 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=150, Invalid=500, Unknown=0, NotChecked=0, Total=650 [2024-09-12 18:24:16,502 INFO L434 NwaCegarLoop]: 13 mSDtfsCounter, 174 mSDsluCounter, 85 mSDsCounter, 0 mSdLazyCounter, 619 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 177 SdHoareTripleChecker+Valid, 98 SdHoareTripleChecker+Invalid, 629 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 619 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-09-12 18:24:16,502 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [177 Valid, 98 Invalid, 629 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 619 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-09-12 18:24:16,503 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2024-09-12 18:24:16,523 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 94. [2024-09-12 18:24:16,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 94 states, 62 states have (on average 1.3387096774193548) internal successors, (83), 79 states have internal predecessors, (83), 10 states have call successors, (10), 7 states have call predecessors, (10), 5 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-09-12 18:24:16,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 100 transitions. [2024-09-12 18:24:16,525 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 100 transitions. Word has length 38 [2024-09-12 18:24:16,526 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:24:16,526 INFO L474 AbstractCegarLoop]: Abstraction has 94 states and 100 transitions. [2024-09-12 18:24:16,526 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 3.1538461538461537) internal successors, (41), 12 states have internal predecessors, (41), 2 states have call successors, (7), 3 states have call predecessors, (7), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-09-12 18:24:16,527 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:24:16,527 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 100 transitions. [2024-09-12 18:24:16,527 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2024-09-12 18:24:16,528 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:24:16,528 INFO L216 NwaCegarLoop]: trace histogram [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] [2024-09-12 18:24:16,548 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 18:24:16,732 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2024-09-12 18:24:16,733 INFO L399 AbstractCegarLoop]: === Iteration 13 === Targeting lcpErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [checkErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, checkErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, checkErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2024-09-12 18:24:16,734 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:24:16,734 INFO L85 PathProgramCache]: Analyzing trace with hash -1554435737, now seen corresponding path program 1 times [2024-09-12 18:24:16,734 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:24:16,734 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1315301706] [2024-09-12 18:24:16,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:24:16,734 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:24:16,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:24:16,851 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:24:16,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:24:16,854 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:24:16,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:24:16,864 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 18:24:16,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:24:16,866 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-09-12 18:24:16,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:24:16,872 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-09-12 18:24:16,874 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:24:16,874 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1315301706] [2024-09-12 18:24:16,874 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1315301706] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:24:16,874 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1764356976] [2024-09-12 18:24:16,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:24:16,874 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:24:16,875 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:24:16,878 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 18:24:16,882 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 18:24:16,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:24:16,955 INFO L262 TraceCheckSpWp]: Trace formula consists of 153 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-09-12 18:24:16,957 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:24:17,065 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-09-12 18:24:17,066 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 18:24:17,066 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1764356976] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:24:17,066 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-09-12 18:24:17,066 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [7] total 10 [2024-09-12 18:24:17,066 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1351737579] [2024-09-12 18:24:17,066 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:24:17,067 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-09-12 18:24:17,067 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:24:17,067 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-09-12 18:24:17,068 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2024-09-12 18:24:17,068 INFO L87 Difference]: Start difference. First operand 94 states and 100 transitions. Second operand has 7 states, 5 states have (on average 5.4) internal successors, (27), 6 states have internal predecessors, (27), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-09-12 18:24:17,177 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:24:17,177 INFO L93 Difference]: Finished difference Result 94 states and 100 transitions. [2024-09-12 18:24:17,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-09-12 18:24:17,178 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 5 states have (on average 5.4) internal successors, (27), 6 states have internal predecessors, (27), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 40 [2024-09-12 18:24:17,178 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:24:17,179 INFO L225 Difference]: With dead ends: 94 [2024-09-12 18:24:17,179 INFO L226 Difference]: Without dead ends: 92 [2024-09-12 18:24:17,179 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=144, Unknown=0, NotChecked=0, Total=182 [2024-09-12 18:24:17,180 INFO L434 NwaCegarLoop]: 65 mSDtfsCounter, 34 mSDsluCounter, 297 mSDsCounter, 0 mSdLazyCounter, 112 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 362 SdHoareTripleChecker+Invalid, 113 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 112 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 18:24:17,181 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 362 Invalid, 113 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 112 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 18:24:17,183 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2024-09-12 18:24:17,196 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 92. [2024-09-12 18:24:17,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 92 states, 62 states have (on average 1.3064516129032258) internal successors, (81), 77 states have internal predecessors, (81), 10 states have call successors, (10), 7 states have call predecessors, (10), 5 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-09-12 18:24:17,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 98 transitions. [2024-09-12 18:24:17,198 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 98 transitions. Word has length 40 [2024-09-12 18:24:17,198 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:24:17,198 INFO L474 AbstractCegarLoop]: Abstraction has 92 states and 98 transitions. [2024-09-12 18:24:17,199 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 5 states have (on average 5.4) internal successors, (27), 6 states have internal predecessors, (27), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-09-12 18:24:17,199 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:24:17,199 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 98 transitions. [2024-09-12 18:24:17,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2024-09-12 18:24:17,201 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:24:17,201 INFO L216 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:24:17,222 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 18:24:17,401 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,5 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:24:17,402 INFO L399 AbstractCegarLoop]: === Iteration 14 === Targeting lcpErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [checkErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, checkErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, checkErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2024-09-12 18:24:17,403 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:24:17,403 INFO L85 PathProgramCache]: Analyzing trace with hash -942867483, now seen corresponding path program 1 times [2024-09-12 18:24:17,403 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:24:17,403 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [278377175] [2024-09-12 18:24:17,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:24:17,403 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:24:17,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:24:17,576 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:24:17,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:24:17,580 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:24:17,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:24:17,598 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 18:24:17,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:24:17,602 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-09-12 18:24:17,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:24:17,609 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-09-12 18:24:17,610 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:24:17,611 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [278377175] [2024-09-12 18:24:17,611 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [278377175] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:24:17,611 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1140942700] [2024-09-12 18:24:17,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:24:17,611 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:24:17,611 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:24:17,615 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 18:24:17,617 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 18:24:17,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:24:17,694 INFO L262 TraceCheckSpWp]: Trace formula consists of 154 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-09-12 18:24:17,696 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:24:17,832 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-09-12 18:24:17,833 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:24:17,939 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-09-12 18:24:17,940 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1140942700] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:24:17,940 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 18:24:17,940 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 9, 9] total 15 [2024-09-12 18:24:17,940 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1771067834] [2024-09-12 18:24:17,941 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 18:24:17,941 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-09-12 18:24:17,941 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:24:17,941 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-09-12 18:24:17,942 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=198, Unknown=0, NotChecked=0, Total=240 [2024-09-12 18:24:17,942 INFO L87 Difference]: Start difference. First operand 92 states and 98 transitions. Second operand has 16 states, 15 states have (on average 2.933333333333333) internal successors, (44), 14 states have internal predecessors, (44), 2 states have call successors, (7), 3 states have call predecessors, (7), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-09-12 18:24:18,575 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:24:18,575 INFO L93 Difference]: Finished difference Result 93 states and 99 transitions. [2024-09-12 18:24:18,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-09-12 18:24:18,576 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 2.933333333333333) internal successors, (44), 14 states have internal predecessors, (44), 2 states have call successors, (7), 3 states have call predecessors, (7), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 41 [2024-09-12 18:24:18,576 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:24:18,577 INFO L225 Difference]: With dead ends: 93 [2024-09-12 18:24:18,577 INFO L226 Difference]: Without dead ends: 91 [2024-09-12 18:24:18,578 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 79 SyntacticMatches, 5 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 130 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=174, Invalid=638, Unknown=0, NotChecked=0, Total=812 [2024-09-12 18:24:18,578 INFO L434 NwaCegarLoop]: 13 mSDtfsCounter, 146 mSDsluCounter, 129 mSDsCounter, 0 mSdLazyCounter, 877 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 149 SdHoareTripleChecker+Valid, 142 SdHoareTripleChecker+Invalid, 887 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 877 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-09-12 18:24:18,579 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [149 Valid, 142 Invalid, 887 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 877 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-09-12 18:24:18,579 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2024-09-12 18:24:18,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 90. [2024-09-12 18:24:18,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90 states, 62 states have (on average 1.2741935483870968) internal successors, (79), 75 states have internal predecessors, (79), 10 states have call successors, (10), 7 states have call predecessors, (10), 5 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-09-12 18:24:18,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 96 transitions. [2024-09-12 18:24:18,591 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 96 transitions. Word has length 41 [2024-09-12 18:24:18,591 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:24:18,592 INFO L474 AbstractCegarLoop]: Abstraction has 90 states and 96 transitions. [2024-09-12 18:24:18,592 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 2.933333333333333) internal successors, (44), 14 states have internal predecessors, (44), 2 states have call successors, (7), 3 states have call predecessors, (7), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-09-12 18:24:18,592 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:24:18,592 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 96 transitions. [2024-09-12 18:24:18,593 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2024-09-12 18:24:18,593 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:24:18,593 INFO L216 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:24:18,611 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-09-12 18:24:18,793 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2024-09-12 18:24:18,794 INFO L399 AbstractCegarLoop]: === Iteration 15 === Targeting lcpErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [checkErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, checkErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, checkErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2024-09-12 18:24:18,795 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:24:18,795 INFO L85 PathProgramCache]: Analyzing trace with hash 1284773625, now seen corresponding path program 1 times [2024-09-12 18:24:18,795 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:24:18,795 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1014375606] [2024-09-12 18:24:18,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:24:18,795 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:24:18,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:24:18,875 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:24:18,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:24:18,878 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:24:18,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:24:18,884 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 18:24:18,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:24:18,886 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-09-12 18:24:18,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:24:18,889 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-09-12 18:24:18,889 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:24:18,889 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1014375606] [2024-09-12 18:24:18,889 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1014375606] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:24:18,889 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [220005579] [2024-09-12 18:24:18,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:24:18,890 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:24:18,890 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:24:18,893 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 18:24:18,905 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 18:24:18,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:24:18,966 INFO L262 TraceCheckSpWp]: Trace formula consists of 171 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-09-12 18:24:18,968 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:24:19,008 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-09-12 18:24:19,009 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:24:19,077 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-09-12 18:24:19,077 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [220005579] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:24:19,077 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 18:24:19,077 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 12 [2024-09-12 18:24:19,077 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [592781052] [2024-09-12 18:24:19,078 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 18:24:19,078 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-09-12 18:24:19,078 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:24:19,079 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-09-12 18:24:19,079 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2024-09-12 18:24:19,079 INFO L87 Difference]: Start difference. First operand 90 states and 96 transitions. Second operand has 13 states, 12 states have (on average 6.833333333333333) internal successors, (82), 12 states have internal predecessors, (82), 1 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-09-12 18:24:19,443 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:24:19,443 INFO L93 Difference]: Finished difference Result 145 states and 162 transitions. [2024-09-12 18:24:19,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-09-12 18:24:19,444 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 6.833333333333333) internal successors, (82), 12 states have internal predecessors, (82), 1 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 50 [2024-09-12 18:24:19,444 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:24:19,445 INFO L225 Difference]: With dead ends: 145 [2024-09-12 18:24:19,445 INFO L226 Difference]: Without dead ends: 144 [2024-09-12 18:24:19,445 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 101 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 80 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=101, Invalid=319, Unknown=0, NotChecked=0, Total=420 [2024-09-12 18:24:19,446 INFO L434 NwaCegarLoop]: 15 mSDtfsCounter, 142 mSDsluCounter, 74 mSDsCounter, 0 mSdLazyCounter, 487 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 145 SdHoareTripleChecker+Valid, 89 SdHoareTripleChecker+Invalid, 494 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 487 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-09-12 18:24:19,447 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [145 Valid, 89 Invalid, 494 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 487 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-09-12 18:24:19,447 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144 states. [2024-09-12 18:24:19,467 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144 to 132. [2024-09-12 18:24:19,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 132 states, 104 states have (on average 1.25) internal successors, (130), 117 states have internal predecessors, (130), 10 states have call successors, (10), 7 states have call predecessors, (10), 5 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-09-12 18:24:19,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 147 transitions. [2024-09-12 18:24:19,469 INFO L78 Accepts]: Start accepts. Automaton has 132 states and 147 transitions. Word has length 50 [2024-09-12 18:24:19,469 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:24:19,469 INFO L474 AbstractCegarLoop]: Abstraction has 132 states and 147 transitions. [2024-09-12 18:24:19,469 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 6.833333333333333) internal successors, (82), 12 states have internal predecessors, (82), 1 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-09-12 18:24:19,470 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:24:19,470 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 147 transitions. [2024-09-12 18:24:19,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2024-09-12 18:24:19,470 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:24:19,471 INFO L216 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1] [2024-09-12 18:24:19,490 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 18:24:19,674 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2024-09-12 18:24:19,675 INFO L399 AbstractCegarLoop]: === Iteration 16 === Targeting checkErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [checkErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, checkErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, checkErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2024-09-12 18:24:19,676 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:24:19,676 INFO L85 PathProgramCache]: Analyzing trace with hash -795783471, now seen corresponding path program 1 times [2024-09-12 18:24:19,676 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:24:19,676 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [522075776] [2024-09-12 18:24:19,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:24:19,676 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:24:19,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:24:19,917 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:24:19,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:24:19,920 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:24:19,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:24:19,937 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 18:24:19,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:24:19,942 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-09-12 18:24:19,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:24:19,944 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-09-12 18:24:19,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:24:20,022 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-09-12 18:24:20,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:24:20,064 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 6 proven. 4 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-09-12 18:24:20,065 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:24:20,065 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [522075776] [2024-09-12 18:24:20,065 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [522075776] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:24:20,065 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2000499002] [2024-09-12 18:24:20,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:24:20,065 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:24:20,065 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:24:20,067 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 18:24:20,068 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 18:24:20,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:24:20,138 INFO L262 TraceCheckSpWp]: Trace formula consists of 202 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-09-12 18:24:20,140 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:24:20,335 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-09-12 18:24:20,336 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:24:20,965 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-09-12 18:24:20,966 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2000499002] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:24:20,966 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 18:24:20,966 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 15, 15] total 33 [2024-09-12 18:24:20,967 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [390768598] [2024-09-12 18:24:20,967 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 18:24:20,967 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2024-09-12 18:24:20,967 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:24:20,968 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2024-09-12 18:24:20,969 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=91, Invalid=1031, Unknown=0, NotChecked=0, Total=1122 [2024-09-12 18:24:20,969 INFO L87 Difference]: Start difference. First operand 132 states and 147 transitions. Second operand has 34 states, 26 states have (on average 3.5384615384615383) internal successors, (92), 29 states have internal predecessors, (92), 7 states have call successors, (15), 4 states have call predecessors, (15), 5 states have return successors, (13), 8 states have call predecessors, (13), 5 states have call successors, (13) [2024-09-12 18:24:22,004 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:24:22,005 INFO L93 Difference]: Finished difference Result 134 states and 149 transitions. [2024-09-12 18:24:22,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-09-12 18:24:22,005 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 26 states have (on average 3.5384615384615383) internal successors, (92), 29 states have internal predecessors, (92), 7 states have call successors, (15), 4 states have call predecessors, (15), 5 states have return successors, (13), 8 states have call predecessors, (13), 5 states have call successors, (13) Word has length 54 [2024-09-12 18:24:22,006 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:24:22,007 INFO L225 Difference]: With dead ends: 134 [2024-09-12 18:24:22,007 INFO L226 Difference]: Without dead ends: 131 [2024-09-12 18:24:22,008 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 146 GetRequests, 97 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 293 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=249, Invalid=2301, Unknown=0, NotChecked=0, Total=2550 [2024-09-12 18:24:22,008 INFO L434 NwaCegarLoop]: 11 mSDtfsCounter, 180 mSDsluCounter, 191 mSDsCounter, 0 mSdLazyCounter, 1386 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 181 SdHoareTripleChecker+Valid, 202 SdHoareTripleChecker+Invalid, 1408 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 1386 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-09-12 18:24:22,009 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [181 Valid, 202 Invalid, 1408 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 1386 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-09-12 18:24:22,009 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131 states. [2024-09-12 18:24:22,032 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131 to 129. [2024-09-12 18:24:22,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 129 states, 104 states have (on average 1.2211538461538463) internal successors, (127), 114 states have internal predecessors, (127), 10 states have call successors, (10), 7 states have call predecessors, (10), 5 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-09-12 18:24:22,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 129 states and 144 transitions. [2024-09-12 18:24:22,034 INFO L78 Accepts]: Start accepts. Automaton has 129 states and 144 transitions. Word has length 54 [2024-09-12 18:24:22,034 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:24:22,035 INFO L474 AbstractCegarLoop]: Abstraction has 129 states and 144 transitions. [2024-09-12 18:24:22,035 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 26 states have (on average 3.5384615384615383) internal successors, (92), 29 states have internal predecessors, (92), 7 states have call successors, (15), 4 states have call predecessors, (15), 5 states have return successors, (13), 8 states have call predecessors, (13), 5 states have call successors, (13) [2024-09-12 18:24:22,035 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:24:22,035 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states and 144 transitions. [2024-09-12 18:24:22,036 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2024-09-12 18:24:22,036 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:24:22,036 INFO L216 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1] [2024-09-12 18:24:22,052 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2024-09-12 18:24:22,240 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2024-09-12 18:24:22,241 INFO L399 AbstractCegarLoop]: === Iteration 17 === Targeting checkErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [checkErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, checkErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, checkErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2024-09-12 18:24:22,242 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:24:22,242 INFO L85 PathProgramCache]: Analyzing trace with hash 1100516231, now seen corresponding path program 1 times [2024-09-12 18:24:22,242 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:24:22,242 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1793702855] [2024-09-12 18:24:22,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:24:22,242 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:24:22,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:24:22,319 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:24:22,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:24:22,322 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:24:22,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:24:22,328 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 18:24:22,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:24:22,331 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-09-12 18:24:22,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:24:22,348 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-09-12 18:24:22,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:24:22,357 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-09-12 18:24:22,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:24:22,360 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-09-12 18:24:22,360 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:24:22,360 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1793702855] [2024-09-12 18:24:22,360 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1793702855] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:24:22,360 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [81867551] [2024-09-12 18:24:22,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:24:22,361 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:24:22,361 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:24:22,366 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 18:24:22,368 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 18:24:22,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:24:22,437 INFO L262 TraceCheckSpWp]: Trace formula consists of 205 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-09-12 18:24:22,438 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:24:22,495 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-09-12 18:24:22,495 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 18:24:22,495 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [81867551] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:24:22,495 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-09-12 18:24:22,495 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [7] total 11 [2024-09-12 18:24:22,496 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2046457319] [2024-09-12 18:24:22,496 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:24:22,496 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-09-12 18:24:22,496 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:24:22,497 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-09-12 18:24:22,497 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2024-09-12 18:24:22,497 INFO L87 Difference]: Start difference. First operand 129 states and 144 transitions. Second operand has 8 states, 6 states have (on average 5.833333333333333) internal successors, (35), 7 states have internal predecessors, (35), 3 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2024-09-12 18:24:22,623 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:24:22,623 INFO L93 Difference]: Finished difference Result 129 states and 144 transitions. [2024-09-12 18:24:22,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-09-12 18:24:22,624 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 5.833333333333333) internal successors, (35), 7 states have internal predecessors, (35), 3 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) Word has length 55 [2024-09-12 18:24:22,624 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:24:22,625 INFO L225 Difference]: With dead ends: 129 [2024-09-12 18:24:22,625 INFO L226 Difference]: Without dead ends: 128 [2024-09-12 18:24:22,626 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=146, Unknown=0, NotChecked=0, Total=182 [2024-09-12 18:24:22,626 INFO L434 NwaCegarLoop]: 54 mSDtfsCounter, 39 mSDsluCounter, 288 mSDsCounter, 0 mSdLazyCounter, 125 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 342 SdHoareTripleChecker+Invalid, 128 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 125 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 18:24:22,626 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 342 Invalid, 128 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 125 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 18:24:22,627 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128 states. [2024-09-12 18:24:22,652 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128 to 128. [2024-09-12 18:24:22,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 128 states, 104 states have (on average 1.2115384615384615) internal successors, (126), 113 states have internal predecessors, (126), 10 states have call successors, (10), 7 states have call predecessors, (10), 5 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-09-12 18:24:22,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 128 states and 143 transitions. [2024-09-12 18:24:22,654 INFO L78 Accepts]: Start accepts. Automaton has 128 states and 143 transitions. Word has length 55 [2024-09-12 18:24:22,654 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:24:22,654 INFO L474 AbstractCegarLoop]: Abstraction has 128 states and 143 transitions. [2024-09-12 18:24:22,654 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 5.833333333333333) internal successors, (35), 7 states have internal predecessors, (35), 3 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2024-09-12 18:24:22,655 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:24:22,655 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 143 transitions. [2024-09-12 18:24:22,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2024-09-12 18:24:22,655 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:24:22,655 INFO L216 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1] [2024-09-12 18:24:22,676 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-09-12 18:24:22,859 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16,9 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:24:22,860 INFO L399 AbstractCegarLoop]: === Iteration 18 === Targeting checkErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [checkErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, checkErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, checkErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2024-09-12 18:24:22,861 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:24:22,861 INFO L85 PathProgramCache]: Analyzing trace with hash -243735149, now seen corresponding path program 1 times [2024-09-12 18:24:22,861 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:24:22,861 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1286712478] [2024-09-12 18:24:22,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:24:22,861 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:24:22,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:24:23,030 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:24:23,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:24:23,033 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:24:23,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:24:23,047 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 18:24:23,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:24:23,049 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-09-12 18:24:23,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:24:23,051 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-09-12 18:24:23,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:24:23,364 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-09-12 18:24:23,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:24:23,367 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-09-12 18:24:23,367 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:24:23,367 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1286712478] [2024-09-12 18:24:23,367 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1286712478] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:24:23,367 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [295555563] [2024-09-12 18:24:23,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:24:23,368 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:24:23,368 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:24:23,369 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 18:24:23,370 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 18:24:23,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:24:23,455 INFO L262 TraceCheckSpWp]: Trace formula consists of 206 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-09-12 18:24:23,457 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:24:23,868 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-09-12 18:24:23,868 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:24:24,321 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-09-12 18:24:24,322 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [295555563] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:24:24,322 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 18:24:24,322 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 13, 13] total 27 [2024-09-12 18:24:24,322 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [132598316] [2024-09-12 18:24:24,322 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 18:24:24,323 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2024-09-12 18:24:24,323 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:24:24,323 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2024-09-12 18:24:24,324 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=107, Invalid=649, Unknown=0, NotChecked=0, Total=756 [2024-09-12 18:24:24,324 INFO L87 Difference]: Start difference. First operand 128 states and 143 transitions. Second operand has 28 states, 27 states have (on average 2.6296296296296298) internal successors, (71), 26 states have internal predecessors, (71), 3 states have call successors, (9), 3 states have call predecessors, (9), 2 states have return successors, (6), 3 states have call predecessors, (6), 2 states have call successors, (6) [2024-09-12 18:24:25,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:24:25,215 INFO L93 Difference]: Finished difference Result 160 states and 178 transitions. [2024-09-12 18:24:25,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-09-12 18:24:25,215 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 27 states have (on average 2.6296296296296298) internal successors, (71), 26 states have internal predecessors, (71), 3 states have call successors, (9), 3 states have call predecessors, (9), 2 states have return successors, (6), 3 states have call predecessors, (6), 2 states have call successors, (6) Word has length 56 [2024-09-12 18:24:25,216 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:24:25,217 INFO L225 Difference]: With dead ends: 160 [2024-09-12 18:24:25,217 INFO L226 Difference]: Without dead ends: 159 [2024-09-12 18:24:25,218 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 152 GetRequests, 106 SyntacticMatches, 4 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 247 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=319, Invalid=1573, Unknown=0, NotChecked=0, Total=1892 [2024-09-12 18:24:25,218 INFO L434 NwaCegarLoop]: 14 mSDtfsCounter, 171 mSDsluCounter, 169 mSDsCounter, 0 mSdLazyCounter, 1036 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 174 SdHoareTripleChecker+Valid, 183 SdHoareTripleChecker+Invalid, 1053 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 1036 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-09-12 18:24:25,218 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [174 Valid, 183 Invalid, 1053 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 1036 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-09-12 18:24:25,219 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 159 states. [2024-09-12 18:24:25,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 159 to 139. [2024-09-12 18:24:25,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 139 states, 112 states have (on average 1.1964285714285714) internal successors, (134), 121 states have internal predecessors, (134), 12 states have call successors, (12), 8 states have call predecessors, (12), 6 states have return successors, (9), 9 states have call predecessors, (9), 8 states have call successors, (9) [2024-09-12 18:24:25,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139 states to 139 states and 155 transitions. [2024-09-12 18:24:25,253 INFO L78 Accepts]: Start accepts. Automaton has 139 states and 155 transitions. Word has length 56 [2024-09-12 18:24:25,253 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:24:25,253 INFO L474 AbstractCegarLoop]: Abstraction has 139 states and 155 transitions. [2024-09-12 18:24:25,254 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 27 states have (on average 2.6296296296296298) internal successors, (71), 26 states have internal predecessors, (71), 3 states have call successors, (9), 3 states have call predecessors, (9), 2 states have return successors, (6), 3 states have call predecessors, (6), 2 states have call successors, (6) [2024-09-12 18:24:25,254 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:24:25,254 INFO L276 IsEmpty]: Start isEmpty. Operand 139 states and 155 transitions. [2024-09-12 18:24:25,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2024-09-12 18:24:25,255 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:24:25,255 INFO L216 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1] [2024-09-12 18:24:25,271 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 18:24:25,459 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2024-09-12 18:24:25,460 INFO L399 AbstractCegarLoop]: === Iteration 19 === Targeting checkErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [checkErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, checkErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, checkErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2024-09-12 18:24:25,460 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:24:25,460 INFO L85 PathProgramCache]: Analyzing trace with hash 471575703, now seen corresponding path program 1 times [2024-09-12 18:24:25,460 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:24:25,460 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [784212925] [2024-09-12 18:24:25,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:24:25,461 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:24:25,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:24:25,626 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:24:25,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:24:25,628 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:24:25,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:24:25,636 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 18:24:25,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:24:25,639 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-09-12 18:24:25,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:24:25,642 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-09-12 18:24:25,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:24:25,699 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-09-12 18:24:25,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:24:25,730 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 6 proven. 3 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-09-12 18:24:25,731 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:24:25,731 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [784212925] [2024-09-12 18:24:25,731 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [784212925] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:24:25,731 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [633157369] [2024-09-12 18:24:25,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:24:25,731 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:24:25,731 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:24:25,733 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 18:24:25,741 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 18:24:25,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:24:25,813 INFO L262 TraceCheckSpWp]: Trace formula consists of 209 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-09-12 18:24:25,815 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:24:26,034 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 6 proven. 8 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-09-12 18:24:26,034 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:24:26,355 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 6 proven. 8 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-09-12 18:24:26,356 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [633157369] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:24:26,356 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 18:24:26,356 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13, 13] total 29 [2024-09-12 18:24:26,356 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1034271599] [2024-09-12 18:24:26,356 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 18:24:26,357 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2024-09-12 18:24:26,357 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:24:26,357 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2024-09-12 18:24:26,358 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=798, Unknown=0, NotChecked=0, Total=870 [2024-09-12 18:24:26,358 INFO L87 Difference]: Start difference. First operand 139 states and 155 transitions. Second operand has 30 states, 20 states have (on average 3.95) internal successors, (79), 23 states have internal predecessors, (79), 9 states have call successors, (16), 5 states have call predecessors, (16), 4 states have return successors, (13), 9 states have call predecessors, (13), 6 states have call successors, (13) [2024-09-12 18:24:27,838 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:24:27,838 INFO L93 Difference]: Finished difference Result 228 states and 261 transitions. [2024-09-12 18:24:27,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2024-09-12 18:24:27,839 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 20 states have (on average 3.95) internal successors, (79), 23 states have internal predecessors, (79), 9 states have call successors, (16), 5 states have call predecessors, (16), 4 states have return successors, (13), 9 states have call predecessors, (13), 6 states have call successors, (13) Word has length 58 [2024-09-12 18:24:27,839 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:24:27,841 INFO L225 Difference]: With dead ends: 228 [2024-09-12 18:24:27,841 INFO L226 Difference]: Without dead ends: 225 [2024-09-12 18:24:27,843 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 168 GetRequests, 104 SyntacticMatches, 5 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 579 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=322, Invalid=3338, Unknown=0, NotChecked=0, Total=3660 [2024-09-12 18:24:27,843 INFO L434 NwaCegarLoop]: 12 mSDtfsCounter, 307 mSDsluCounter, 201 mSDsCounter, 0 mSdLazyCounter, 2024 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 309 SdHoareTripleChecker+Valid, 213 SdHoareTripleChecker+Invalid, 2063 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 2024 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-09-12 18:24:27,843 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [309 Valid, 213 Invalid, 2063 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 2024 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-09-12 18:24:27,844 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 225 states. [2024-09-12 18:24:27,893 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 225 to 150. [2024-09-12 18:24:27,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 150 states, 123 states have (on average 1.2113821138211383) internal successors, (149), 131 states have internal predecessors, (149), 13 states have call successors, (13), 8 states have call predecessors, (13), 6 states have return successors, (10), 10 states have call predecessors, (10), 9 states have call successors, (10) [2024-09-12 18:24:27,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 172 transitions. [2024-09-12 18:24:27,895 INFO L78 Accepts]: Start accepts. Automaton has 150 states and 172 transitions. Word has length 58 [2024-09-12 18:24:27,895 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:24:27,895 INFO L474 AbstractCegarLoop]: Abstraction has 150 states and 172 transitions. [2024-09-12 18:24:27,896 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 20 states have (on average 3.95) internal successors, (79), 23 states have internal predecessors, (79), 9 states have call successors, (16), 5 states have call predecessors, (16), 4 states have return successors, (13), 9 states have call predecessors, (13), 6 states have call successors, (13) [2024-09-12 18:24:27,896 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:24:27,896 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 172 transitions. [2024-09-12 18:24:27,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2024-09-12 18:24:27,898 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:24:27,898 INFO L216 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:24:27,916 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 18:24:28,098 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,11 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:24:28,099 INFO L399 AbstractCegarLoop]: === Iteration 20 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [checkErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, checkErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, checkErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2024-09-12 18:24:28,099 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:24:28,099 INFO L85 PathProgramCache]: Analyzing trace with hash 417626399, now seen corresponding path program 1 times [2024-09-12 18:24:28,099 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:24:28,099 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [438249489] [2024-09-12 18:24:28,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:24:28,100 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:24:28,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:24:28,314 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:24:28,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:24:28,316 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:24:28,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:24:28,327 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 18:24:28,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:24:28,348 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-09-12 18:24:28,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:24:28,351 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-09-12 18:24:28,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:24:28,361 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-09-12 18:24:28,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:24:28,364 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-09-12 18:24:28,365 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:24:28,365 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [438249489] [2024-09-12 18:24:28,365 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [438249489] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:24:28,365 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:24:28,365 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-09-12 18:24:28,365 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [565806319] [2024-09-12 18:24:28,365 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:24:28,366 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-09-12 18:24:28,366 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:24:28,367 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-09-12 18:24:28,367 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2024-09-12 18:24:28,367 INFO L87 Difference]: Start difference. First operand 150 states and 172 transitions. Second operand has 12 states, 10 states have (on average 3.6) internal successors, (36), 8 states have internal predecessors, (36), 4 states have call successors, (9), 4 states have call predecessors, (9), 2 states have return successors, (6), 4 states have call predecessors, (6), 3 states have call successors, (6) [2024-09-12 18:24:28,795 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:24:28,796 INFO L93 Difference]: Finished difference Result 156 states and 177 transitions. [2024-09-12 18:24:28,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-09-12 18:24:28,796 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 10 states have (on average 3.6) internal successors, (36), 8 states have internal predecessors, (36), 4 states have call successors, (9), 4 states have call predecessors, (9), 2 states have return successors, (6), 4 states have call predecessors, (6), 3 states have call successors, (6) Word has length 60 [2024-09-12 18:24:28,797 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:24:28,798 INFO L225 Difference]: With dead ends: 156 [2024-09-12 18:24:28,798 INFO L226 Difference]: Without dead ends: 152 [2024-09-12 18:24:28,798 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=55, Invalid=251, Unknown=0, NotChecked=0, Total=306 [2024-09-12 18:24:28,799 INFO L434 NwaCegarLoop]: 11 mSDtfsCounter, 85 mSDsluCounter, 59 mSDsCounter, 0 mSdLazyCounter, 635 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 86 SdHoareTripleChecker+Valid, 70 SdHoareTripleChecker+Invalid, 649 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 635 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-09-12 18:24:28,799 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [86 Valid, 70 Invalid, 649 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 635 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-09-12 18:24:28,799 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 152 states. [2024-09-12 18:24:28,837 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 152 to 152. [2024-09-12 18:24:28,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 152 states, 125 states have (on average 1.2) internal successors, (150), 132 states have internal predecessors, (150), 13 states have call successors, (13), 9 states have call predecessors, (13), 6 states have return successors, (10), 10 states have call predecessors, (10), 9 states have call successors, (10) [2024-09-12 18:24:28,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 152 states and 173 transitions. [2024-09-12 18:24:28,839 INFO L78 Accepts]: Start accepts. Automaton has 152 states and 173 transitions. Word has length 60 [2024-09-12 18:24:28,839 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:24:28,840 INFO L474 AbstractCegarLoop]: Abstraction has 152 states and 173 transitions. [2024-09-12 18:24:28,840 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 10 states have (on average 3.6) internal successors, (36), 8 states have internal predecessors, (36), 4 states have call successors, (9), 4 states have call predecessors, (9), 2 states have return successors, (6), 4 states have call predecessors, (6), 3 states have call successors, (6) [2024-09-12 18:24:28,840 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:24:28,840 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 173 transitions. [2024-09-12 18:24:28,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2024-09-12 18:24:28,841 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:24:28,841 INFO L216 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:24:28,841 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-09-12 18:24:28,841 INFO L399 AbstractCegarLoop]: === Iteration 21 === Targeting checkErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [checkErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, checkErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, checkErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2024-09-12 18:24:28,841 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:24:28,841 INFO L85 PathProgramCache]: Analyzing trace with hash -1008226324, now seen corresponding path program 1 times [2024-09-12 18:24:28,841 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:24:28,841 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [773020155] [2024-09-12 18:24:28,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:24:28,841 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:24:28,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:24:28,958 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:24:28,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:24:28,962 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:24:28,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:24:28,969 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 18:24:28,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:24:28,971 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-09-12 18:24:28,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:24:28,973 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-09-12 18:24:28,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:24:29,092 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-09-12 18:24:29,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:24:29,095 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-09-12 18:24:29,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:24:29,097 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 1 proven. 5 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-09-12 18:24:29,097 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:24:29,097 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [773020155] [2024-09-12 18:24:29,097 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [773020155] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:24:29,097 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1576673567] [2024-09-12 18:24:29,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:24:29,097 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:24:29,098 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:24:29,099 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 18:24:29,102 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 18:24:29,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:24:29,181 INFO L262 TraceCheckSpWp]: Trace formula consists of 219 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-09-12 18:24:29,189 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:24:29,391 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-09-12 18:24:29,391 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 18:24:29,391 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1576673567] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:24:29,391 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-09-12 18:24:29,391 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [14] total 23 [2024-09-12 18:24:29,392 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1246447321] [2024-09-12 18:24:29,392 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:24:29,392 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-09-12 18:24:29,392 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:24:29,393 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-09-12 18:24:29,393 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=495, Unknown=0, NotChecked=0, Total=552 [2024-09-12 18:24:29,393 INFO L87 Difference]: Start difference. First operand 152 states and 173 transitions. Second operand has 11 states, 7 states have (on average 5.857142857142857) internal successors, (41), 9 states have internal predecessors, (41), 4 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (7), 4 states have call predecessors, (7), 3 states have call successors, (7) [2024-09-12 18:24:29,587 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:24:29,588 INFO L93 Difference]: Finished difference Result 152 states and 173 transitions. [2024-09-12 18:24:29,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-09-12 18:24:29,588 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 7 states have (on average 5.857142857142857) internal successors, (41), 9 states have internal predecessors, (41), 4 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (7), 4 states have call predecessors, (7), 3 states have call successors, (7) Word has length 63 [2024-09-12 18:24:29,588 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:24:29,589 INFO L225 Difference]: With dead ends: 152 [2024-09-12 18:24:29,589 INFO L226 Difference]: Without dead ends: 150 [2024-09-12 18:24:29,590 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 66 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=63, Invalid=537, Unknown=0, NotChecked=0, Total=600 [2024-09-12 18:24:29,590 INFO L434 NwaCegarLoop]: 48 mSDtfsCounter, 37 mSDsluCounter, 336 mSDsCounter, 0 mSdLazyCounter, 284 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 384 SdHoareTripleChecker+Invalid, 287 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 284 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 18:24:29,590 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [37 Valid, 384 Invalid, 287 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 284 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 18:24:29,591 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150 states. [2024-09-12 18:24:29,627 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150 to 150. [2024-09-12 18:24:29,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 150 states, 125 states have (on average 1.168) internal successors, (146), 130 states have internal predecessors, (146), 13 states have call successors, (13), 9 states have call predecessors, (13), 6 states have return successors, (10), 10 states have call predecessors, (10), 9 states have call successors, (10) [2024-09-12 18:24:29,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 169 transitions. [2024-09-12 18:24:29,629 INFO L78 Accepts]: Start accepts. Automaton has 150 states and 169 transitions. Word has length 63 [2024-09-12 18:24:29,629 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:24:29,629 INFO L474 AbstractCegarLoop]: Abstraction has 150 states and 169 transitions. [2024-09-12 18:24:29,629 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 7 states have (on average 5.857142857142857) internal successors, (41), 9 states have internal predecessors, (41), 4 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (7), 4 states have call predecessors, (7), 3 states have call successors, (7) [2024-09-12 18:24:29,629 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:24:29,630 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 169 transitions. [2024-09-12 18:24:29,630 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2024-09-12 18:24:29,630 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:24:29,630 INFO L216 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:24:29,648 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2024-09-12 18:24:29,831 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,12 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:24:29,831 INFO L399 AbstractCegarLoop]: === Iteration 22 === Targeting checkErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [checkErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, checkErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, checkErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2024-09-12 18:24:29,832 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:24:29,832 INFO L85 PathProgramCache]: Analyzing trace with hash -1364053706, now seen corresponding path program 1 times [2024-09-12 18:24:29,832 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:24:29,832 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1901833874] [2024-09-12 18:24:29,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:24:29,833 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:24:29,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:24:29,962 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:24:29,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:24:29,964 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:24:29,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:24:29,973 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 18:24:29,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:24:29,976 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-09-12 18:24:29,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:24:29,978 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-09-12 18:24:29,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:24:30,032 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-09-12 18:24:30,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:24:30,035 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-09-12 18:24:30,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:24:30,036 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-09-12 18:24:30,037 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:24:30,037 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1901833874] [2024-09-12 18:24:30,037 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1901833874] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:24:30,037 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:24:30,037 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-09-12 18:24:30,037 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [39734271] [2024-09-12 18:24:30,037 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:24:30,037 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-09-12 18:24:30,037 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:24:30,038 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-09-12 18:24:30,038 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=110, Unknown=0, NotChecked=0, Total=132 [2024-09-12 18:24:30,039 INFO L87 Difference]: Start difference. First operand 150 states and 169 transitions. Second operand has 12 states, 8 states have (on average 5.5) internal successors, (44), 9 states have internal predecessors, (44), 4 states have call successors, (9), 3 states have call predecessors, (9), 2 states have return successors, (7), 4 states have call predecessors, (7), 3 states have call successors, (7) [2024-09-12 18:24:30,409 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:24:30,409 INFO L93 Difference]: Finished difference Result 150 states and 169 transitions. [2024-09-12 18:24:30,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-09-12 18:24:30,410 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 8 states have (on average 5.5) internal successors, (44), 9 states have internal predecessors, (44), 4 states have call successors, (9), 3 states have call predecessors, (9), 2 states have return successors, (7), 4 states have call predecessors, (7), 3 states have call successors, (7) Word has length 66 [2024-09-12 18:24:30,410 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:24:30,411 INFO L225 Difference]: With dead ends: 150 [2024-09-12 18:24:30,411 INFO L226 Difference]: Without dead ends: 148 [2024-09-12 18:24:30,412 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=58, Invalid=322, Unknown=0, NotChecked=0, Total=380 [2024-09-12 18:24:30,412 INFO L434 NwaCegarLoop]: 14 mSDtfsCounter, 85 mSDsluCounter, 96 mSDsCounter, 0 mSdLazyCounter, 625 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 110 SdHoareTripleChecker+Invalid, 639 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 625 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-09-12 18:24:30,412 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [87 Valid, 110 Invalid, 639 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 625 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-09-12 18:24:30,413 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148 states. [2024-09-12 18:24:30,449 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148 to 148. [2024-09-12 18:24:30,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 148 states, 125 states have (on average 1.136) internal successors, (142), 128 states have internal predecessors, (142), 13 states have call successors, (13), 9 states have call predecessors, (13), 6 states have return successors, (10), 10 states have call predecessors, (10), 9 states have call successors, (10) [2024-09-12 18:24:30,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 165 transitions. [2024-09-12 18:24:30,451 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 165 transitions. Word has length 66 [2024-09-12 18:24:30,451 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:24:30,451 INFO L474 AbstractCegarLoop]: Abstraction has 148 states and 165 transitions. [2024-09-12 18:24:30,451 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 8 states have (on average 5.5) internal successors, (44), 9 states have internal predecessors, (44), 4 states have call successors, (9), 3 states have call predecessors, (9), 2 states have return successors, (7), 4 states have call predecessors, (7), 3 states have call successors, (7) [2024-09-12 18:24:30,451 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:24:30,451 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 165 transitions. [2024-09-12 18:24:30,452 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2024-09-12 18:24:30,452 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:24:30,452 INFO L216 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:24:30,452 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-09-12 18:24:30,453 INFO L399 AbstractCegarLoop]: === Iteration 23 === Targeting checkErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [checkErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, checkErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, checkErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2024-09-12 18:24:30,453 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:24:30,453 INFO L85 PathProgramCache]: Analyzing trace with hash 664008145, now seen corresponding path program 1 times [2024-09-12 18:24:30,453 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:24:30,453 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [881250922] [2024-09-12 18:24:30,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:24:30,453 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:24:30,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:24:30,578 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:24:30,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:24:30,581 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:24:30,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:24:30,588 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 18:24:30,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:24:30,590 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-09-12 18:24:30,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:24:30,592 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-09-12 18:24:30,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:24:30,674 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-09-12 18:24:30,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:24:30,677 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-09-12 18:24:30,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:24:30,679 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-09-12 18:24:30,679 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:24:30,679 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [881250922] [2024-09-12 18:24:30,680 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [881250922] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:24:30,680 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1954630290] [2024-09-12 18:24:30,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:24:30,680 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:24:30,680 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:24:30,682 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 18:24:30,683 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 18:24:30,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:24:30,761 INFO L262 TraceCheckSpWp]: Trace formula consists of 224 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-09-12 18:24:30,763 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:24:30,858 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-09-12 18:24:30,858 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:24:31,015 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-09-12 18:24:31,015 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1954630290] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:24:31,015 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 18:24:31,015 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 11, 11] total 14 [2024-09-12 18:24:31,015 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1885303231] [2024-09-12 18:24:31,016 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 18:24:31,016 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-09-12 18:24:31,016 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:24:31,017 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-09-12 18:24:31,017 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2024-09-12 18:24:31,017 INFO L87 Difference]: Start difference. First operand 148 states and 165 transitions. Second operand has 14 states, 12 states have (on average 6.416666666666667) internal successors, (77), 11 states have internal predecessors, (77), 3 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2024-09-12 18:24:31,450 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:24:31,451 INFO L93 Difference]: Finished difference Result 159 states and 175 transitions. [2024-09-12 18:24:31,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-09-12 18:24:31,451 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 12 states have (on average 6.416666666666667) internal successors, (77), 11 states have internal predecessors, (77), 3 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) Word has length 67 [2024-09-12 18:24:31,451 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:24:31,452 INFO L225 Difference]: With dead ends: 159 [2024-09-12 18:24:31,452 INFO L226 Difference]: Without dead ends: 121 [2024-09-12 18:24:31,453 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 165 GetRequests, 139 SyntacticMatches, 6 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=84, Invalid=378, Unknown=0, NotChecked=0, Total=462 [2024-09-12 18:24:31,453 INFO L434 NwaCegarLoop]: 13 mSDtfsCounter, 86 mSDsluCounter, 89 mSDsCounter, 0 mSdLazyCounter, 588 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 89 SdHoareTripleChecker+Valid, 102 SdHoareTripleChecker+Invalid, 602 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 588 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-09-12 18:24:31,454 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [89 Valid, 102 Invalid, 602 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 588 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-09-12 18:24:31,455 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121 states. [2024-09-12 18:24:31,489 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121 to 121. [2024-09-12 18:24:31,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 121 states, 104 states have (on average 1.0865384615384615) internal successors, (113), 105 states have internal predecessors, (113), 10 states have call successors, (10), 8 states have call predecessors, (10), 5 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-09-12 18:24:31,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 130 transitions. [2024-09-12 18:24:31,491 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 130 transitions. Word has length 67 [2024-09-12 18:24:31,491 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:24:31,491 INFO L474 AbstractCegarLoop]: Abstraction has 121 states and 130 transitions. [2024-09-12 18:24:31,492 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 12 states have (on average 6.416666666666667) internal successors, (77), 11 states have internal predecessors, (77), 3 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2024-09-12 18:24:31,492 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:24:31,492 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 130 transitions. [2024-09-12 18:24:31,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2024-09-12 18:24:31,492 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:24:31,493 INFO L216 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:24:31,509 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 18:24:31,696 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2024-09-12 18:24:31,697 INFO L399 AbstractCegarLoop]: === Iteration 24 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [checkErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, checkErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, checkErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2024-09-12 18:24:31,698 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:24:31,698 INFO L85 PathProgramCache]: Analyzing trace with hash -59988690, now seen corresponding path program 1 times [2024-09-12 18:24:31,698 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:24:31,698 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [898241207] [2024-09-12 18:24:31,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:24:31,698 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:24:31,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:24:31,825 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:24:31,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:24:31,827 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:24:31,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:24:31,834 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 18:24:31,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:24:31,836 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-09-12 18:24:31,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:24:31,837 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-09-12 18:24:31,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:24:31,944 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-09-12 18:24:31,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:24:31,946 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-09-12 18:24:31,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:24:31,949 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 2 proven. 3 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2024-09-12 18:24:31,951 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:24:31,952 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [898241207] [2024-09-12 18:24:31,952 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [898241207] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:24:31,952 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1834419817] [2024-09-12 18:24:31,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:24:31,952 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:24:31,952 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:24:31,957 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 18:24:31,961 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 18:24:32,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:24:32,048 INFO L262 TraceCheckSpWp]: Trace formula consists of 246 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-09-12 18:24:32,050 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:24:32,174 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 2 proven. 3 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2024-09-12 18:24:32,175 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:24:32,364 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 2 proven. 3 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2024-09-12 18:24:32,364 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1834419817] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:24:32,364 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 18:24:32,364 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 12, 12] total 15 [2024-09-12 18:24:32,364 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1932826980] [2024-09-12 18:24:32,365 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 18:24:32,365 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-09-12 18:24:32,365 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:24:32,366 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-09-12 18:24:32,366 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=178, Unknown=0, NotChecked=0, Total=210 [2024-09-12 18:24:32,366 INFO L87 Difference]: Start difference. First operand 121 states and 130 transitions. Second operand has 15 states, 13 states have (on average 6.461538461538462) internal successors, (84), 12 states have internal predecessors, (84), 4 states have call successors, (11), 4 states have call predecessors, (11), 2 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2024-09-12 18:24:32,799 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:24:32,799 INFO L93 Difference]: Finished difference Result 148 states and 158 transitions. [2024-09-12 18:24:32,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-09-12 18:24:32,800 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 13 states have (on average 6.461538461538462) internal successors, (84), 12 states have internal predecessors, (84), 4 states have call successors, (11), 4 states have call predecessors, (11), 2 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) Word has length 78 [2024-09-12 18:24:32,800 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:24:32,801 INFO L225 Difference]: With dead ends: 148 [2024-09-12 18:24:32,801 INFO L226 Difference]: Without dead ends: 120 [2024-09-12 18:24:32,801 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 188 GetRequests, 161 SyntacticMatches, 6 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=90, Invalid=416, Unknown=0, NotChecked=0, Total=506 [2024-09-12 18:24:32,802 INFO L434 NwaCegarLoop]: 13 mSDtfsCounter, 75 mSDsluCounter, 99 mSDsCounter, 0 mSdLazyCounter, 699 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 112 SdHoareTripleChecker+Invalid, 709 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 699 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-09-12 18:24:32,802 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [78 Valid, 112 Invalid, 709 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 699 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-09-12 18:24:32,803 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states. [2024-09-12 18:24:32,831 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 120. [2024-09-12 18:24:32,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 120 states, 103 states have (on average 1.0485436893203883) internal successors, (108), 104 states have internal predecessors, (108), 10 states have call successors, (10), 8 states have call predecessors, (10), 5 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-09-12 18:24:32,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 125 transitions. [2024-09-12 18:24:32,833 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 125 transitions. Word has length 78 [2024-09-12 18:24:32,833 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:24:32,833 INFO L474 AbstractCegarLoop]: Abstraction has 120 states and 125 transitions. [2024-09-12 18:24:32,833 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 13 states have (on average 6.461538461538462) internal successors, (84), 12 states have internal predecessors, (84), 4 states have call successors, (11), 4 states have call predecessors, (11), 2 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2024-09-12 18:24:32,833 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:24:32,833 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 125 transitions. [2024-09-12 18:24:32,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2024-09-12 18:24:32,834 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:24:32,834 INFO L216 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:24:32,850 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 18:24:33,038 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,14 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:24:33,039 INFO L399 AbstractCegarLoop]: === Iteration 25 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [checkErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, checkErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, checkErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2024-09-12 18:24:33,039 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:24:33,040 INFO L85 PathProgramCache]: Analyzing trace with hash 1482318260, now seen corresponding path program 1 times [2024-09-12 18:24:33,040 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:24:33,040 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [739550531] [2024-09-12 18:24:33,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:24:33,040 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:24:33,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:24:33,127 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:24:33,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:24:33,130 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:24:33,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:24:33,135 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 18:24:33,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:24:33,156 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-09-12 18:24:33,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:24:33,158 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-09-12 18:24:33,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:24:33,260 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-09-12 18:24:33,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:24:33,262 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-09-12 18:24:33,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:24:33,263 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 2 proven. 12 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-09-12 18:24:33,264 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:24:33,264 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [739550531] [2024-09-12 18:24:33,264 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [739550531] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:24:33,264 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [893935495] [2024-09-12 18:24:33,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:24:33,264 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:24:33,264 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:24:33,267 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 18:24:33,268 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 18:24:33,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:24:33,350 INFO L262 TraceCheckSpWp]: Trace formula consists of 255 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-09-12 18:24:33,352 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:24:33,370 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 7 treesize of output 6 [2024-09-12 18:24:45,696 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 14 proven. 1 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-09-12 18:24:45,696 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:24:49,762 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [893935495] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:24:49,762 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-09-12 18:24:49,763 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 10] total 16 [2024-09-12 18:24:49,763 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2072019430] [2024-09-12 18:24:49,763 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-09-12 18:24:49,763 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-09-12 18:24:49,763 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:24:49,764 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-09-12 18:24:49,764 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=218, Unknown=3, NotChecked=0, Total=272 [2024-09-12 18:24:49,764 INFO L87 Difference]: Start difference. First operand 120 states and 125 transitions. Second operand has 16 states, 14 states have (on average 6.285714285714286) internal successors, (88), 14 states have internal predecessors, (88), 3 states have call successors, (15), 4 states have call predecessors, (15), 6 states have return successors, (11), 4 states have call predecessors, (11), 3 states have call successors, (11) [2024-09-12 18:24:53,946 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-09-12 18:24:54,050 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:24:54,050 INFO L93 Difference]: Finished difference Result 128 states and 131 transitions. [2024-09-12 18:24:54,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-09-12 18:24:54,051 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 14 states have (on average 6.285714285714286) internal successors, (88), 14 states have internal predecessors, (88), 3 states have call successors, (15), 4 states have call predecessors, (15), 6 states have return successors, (11), 4 states have call predecessors, (11), 3 states have call successors, (11) Word has length 82 [2024-09-12 18:24:54,051 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:24:54,052 INFO L225 Difference]: With dead ends: 128 [2024-09-12 18:24:54,052 INFO L226 Difference]: Without dead ends: 93 [2024-09-12 18:24:54,052 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 141 GetRequests, 119 SyntacticMatches, 2 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 16.4s TimeCoverageRelationStatistics Valid=100, Invalid=359, Unknown=3, NotChecked=0, Total=462 [2024-09-12 18:24:54,053 INFO L434 NwaCegarLoop]: 9 mSDtfsCounter, 28 mSDsluCounter, 31 mSDsCounter, 0 mSdLazyCounter, 245 mSolverCounterSat, 6 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 40 SdHoareTripleChecker+Invalid, 252 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 245 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2024-09-12 18:24:54,054 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 40 Invalid, 252 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 245 Invalid, 1 Unknown, 0 Unchecked, 4.2s Time] [2024-09-12 18:24:54,054 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2024-09-12 18:24:54,083 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 93. [2024-09-12 18:24:54,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93 states, 82 states have (on average 1.0121951219512195) internal successors, (83), 82 states have internal predecessors, (83), 6 states have call successors, (6), 6 states have call predecessors, (6), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-09-12 18:24:54,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 93 transitions. [2024-09-12 18:24:54,085 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 93 transitions. Word has length 82 [2024-09-12 18:24:54,085 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:24:54,085 INFO L474 AbstractCegarLoop]: Abstraction has 93 states and 93 transitions. [2024-09-12 18:24:54,085 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 14 states have (on average 6.285714285714286) internal successors, (88), 14 states have internal predecessors, (88), 3 states have call successors, (15), 4 states have call predecessors, (15), 6 states have return successors, (11), 4 states have call predecessors, (11), 3 states have call successors, (11) [2024-09-12 18:24:54,085 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:24:54,086 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 93 transitions. [2024-09-12 18:24:54,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2024-09-12 18:24:54,086 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:24:54,086 INFO L216 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:24:54,111 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 18:24:54,290 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2024-09-12 18:24:54,291 INFO L399 AbstractCegarLoop]: === Iteration 26 === Targeting lcpErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [checkErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, checkErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, checkErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2024-09-12 18:24:54,292 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:24:54,292 INFO L85 PathProgramCache]: Analyzing trace with hash 529026779, now seen corresponding path program 2 times [2024-09-12 18:24:54,292 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:24:54,292 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [74620855] [2024-09-12 18:24:54,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:24:54,292 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:24:54,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:24:54,547 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:24:54,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:24:54,550 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:24:54,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:24:54,559 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 18:24:54,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:24:54,561 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-09-12 18:24:54,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:24:54,563 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 140 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-09-12 18:24:54,563 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:24:54,564 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [74620855] [2024-09-12 18:24:54,564 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [74620855] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:24:54,564 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1320780025] [2024-09-12 18:24:54,564 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-12 18:24:54,564 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:24:54,564 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:24:54,566 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 18:24:54,567 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 18:24:54,663 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-09-12 18:24:54,663 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 18:24:54,665 INFO L262 TraceCheckSpWp]: Trace formula consists of 246 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-09-12 18:24:54,667 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:24:54,752 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 140 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-09-12 18:24:54,753 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:24:54,950 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 140 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-09-12 18:24:54,950 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1320780025] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:24:54,951 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 18:24:54,951 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 11, 11] total 24 [2024-09-12 18:24:54,951 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [65174705] [2024-09-12 18:24:54,951 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 18:24:54,951 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2024-09-12 18:24:54,952 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:24:54,952 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2024-09-12 18:24:54,952 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=157, Invalid=443, Unknown=0, NotChecked=0, Total=600 [2024-09-12 18:24:54,953 INFO L87 Difference]: Start difference. First operand 93 states and 93 transitions. Second operand has 25 states, 24 states have (on average 6.916666666666667) internal successors, (166), 24 states have internal predecessors, (166), 1 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-09-12 18:24:55,437 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:24:55,438 INFO L93 Difference]: Finished difference Result 178 states and 183 transitions. [2024-09-12 18:24:55,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-09-12 18:24:55,438 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 24 states have (on average 6.916666666666667) internal successors, (166), 24 states have internal predecessors, (166), 1 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 92 [2024-09-12 18:24:55,439 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:24:55,440 INFO L225 Difference]: With dead ends: 178 [2024-09-12 18:24:55,440 INFO L226 Difference]: Without dead ends: 177 [2024-09-12 18:24:55,441 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 222 GetRequests, 179 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 485 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=419, Invalid=1561, Unknown=0, NotChecked=0, Total=1980 [2024-09-12 18:24:55,441 INFO L434 NwaCegarLoop]: 12 mSDtfsCounter, 162 mSDsluCounter, 61 mSDsCounter, 0 mSdLazyCounter, 254 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 163 SdHoareTripleChecker+Valid, 73 SdHoareTripleChecker+Invalid, 260 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 254 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 18:24:55,441 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [163 Valid, 73 Invalid, 260 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 254 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 18:24:55,442 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 177 states. [2024-09-12 18:24:55,509 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 177 to 177. [2024-09-12 18:24:55,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 177 states, 166 states have (on average 1.0060240963855422) internal successors, (167), 166 states have internal predecessors, (167), 6 states have call successors, (6), 6 states have call predecessors, (6), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-09-12 18:24:55,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177 states to 177 states and 177 transitions. [2024-09-12 18:24:55,510 INFO L78 Accepts]: Start accepts. Automaton has 177 states and 177 transitions. Word has length 92 [2024-09-12 18:24:55,511 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:24:55,511 INFO L474 AbstractCegarLoop]: Abstraction has 177 states and 177 transitions. [2024-09-12 18:24:55,511 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 24 states have (on average 6.916666666666667) internal successors, (166), 24 states have internal predecessors, (166), 1 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-09-12 18:24:55,511 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:24:55,511 INFO L276 IsEmpty]: Start isEmpty. Operand 177 states and 177 transitions. [2024-09-12 18:24:55,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2024-09-12 18:24:55,513 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:24:55,513 INFO L216 NwaCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:24:55,530 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 18:24:55,717 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2024-09-12 18:24:55,718 INFO L399 AbstractCegarLoop]: === Iteration 27 === Targeting lcpErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [checkErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, checkErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, checkErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2024-09-12 18:24:55,718 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:24:55,718 INFO L85 PathProgramCache]: Analyzing trace with hash -817959137, now seen corresponding path program 3 times [2024-09-12 18:24:55,719 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:24:55,719 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1066265506] [2024-09-12 18:24:55,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:24:55,719 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:24:55,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:24:56,156 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:24:56,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:24:56,158 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:24:56,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:24:56,170 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 18:24:56,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:24:56,173 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-09-12 18:24:56,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:24:56,175 INFO L134 CoverageAnalysis]: Checked inductivity of 774 backedges. 0 proven. 770 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-09-12 18:24:56,175 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:24:56,175 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1066265506] [2024-09-12 18:24:56,175 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1066265506] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:24:56,175 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1398426198] [2024-09-12 18:24:56,175 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-09-12 18:24:56,175 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:24:56,176 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:24:56,177 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 18:24:56,179 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 18:24:56,262 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-09-12 18:24:56,262 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 18:24:56,263 INFO L262 TraceCheckSpWp]: Trace formula consists of 171 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-09-12 18:24:56,266 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:24:56,774 INFO L134 CoverageAnalysis]: Checked inductivity of 774 backedges. 3 proven. 120 refuted. 0 times theorem prover too weak. 651 trivial. 0 not checked. [2024-09-12 18:24:56,775 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:24:57,089 INFO L134 CoverageAnalysis]: Checked inductivity of 774 backedges. 3 proven. 120 refuted. 0 times theorem prover too weak. 651 trivial. 0 not checked. [2024-09-12 18:24:57,089 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1398426198] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:24:57,089 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 18:24:57,090 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 10, 10] total 37 [2024-09-12 18:24:57,090 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [690404416] [2024-09-12 18:24:57,090 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 18:24:57,090 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 38 states [2024-09-12 18:24:57,090 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:24:57,091 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2024-09-12 18:24:57,092 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=223, Invalid=1183, Unknown=0, NotChecked=0, Total=1406 [2024-09-12 18:24:57,092 INFO L87 Difference]: Start difference. First operand 177 states and 177 transitions. Second operand has 38 states, 35 states have (on average 6.171428571428572) internal successors, (216), 33 states have internal predecessors, (216), 4 states have call successors, (11), 4 states have call predecessors, (11), 2 states have return successors, (8), 4 states have call predecessors, (8), 2 states have call successors, (8) [2024-09-12 18:24:58,201 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:24:58,201 INFO L93 Difference]: Finished difference Result 194 states and 195 transitions. [2024-09-12 18:24:58,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2024-09-12 18:24:58,202 INFO L78 Accepts]: Start accepts. Automaton has has 38 states, 35 states have (on average 6.171428571428572) internal successors, (216), 33 states have internal predecessors, (216), 4 states have call successors, (11), 4 states have call predecessors, (11), 2 states have return successors, (8), 4 states have call predecessors, (8), 2 states have call successors, (8) Word has length 176 [2024-09-12 18:24:58,202 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:24:58,203 INFO L225 Difference]: With dead ends: 194 [2024-09-12 18:24:58,203 INFO L226 Difference]: Without dead ends: 0 [2024-09-12 18:24:58,204 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 412 GetRequests, 344 SyntacticMatches, 2 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 874 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=788, Invalid=3768, Unknown=0, NotChecked=0, Total=4556 [2024-09-12 18:24:58,205 INFO L434 NwaCegarLoop]: 10 mSDtfsCounter, 353 mSDsluCounter, 104 mSDsCounter, 0 mSdLazyCounter, 405 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 353 SdHoareTripleChecker+Valid, 114 SdHoareTripleChecker+Invalid, 413 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 405 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-09-12 18:24:58,206 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [353 Valid, 114 Invalid, 413 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 405 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-09-12 18:24:58,207 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-09-12 18:24:58,207 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-09-12 18:24:58,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-09-12 18:24:58,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-09-12 18:24:58,208 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 176 [2024-09-12 18:24:58,208 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:24:58,208 INFO L474 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-09-12 18:24:58,208 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 38 states, 35 states have (on average 6.171428571428572) internal successors, (216), 33 states have internal predecessors, (216), 4 states have call successors, (11), 4 states have call predecessors, (11), 2 states have return successors, (8), 4 states have call predecessors, (8), 2 states have call successors, (8) [2024-09-12 18:24:58,209 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:24:58,209 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-09-12 18:24:58,209 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-09-12 18:24:58,211 INFO L785 garLoopResultBuilder]: Registering result SAFE for location checkErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (22 of 23 remaining) [2024-09-12 18:24:58,212 INFO L785 garLoopResultBuilder]: Registering result SAFE for location checkErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (21 of 23 remaining) [2024-09-12 18:24:58,212 INFO L785 garLoopResultBuilder]: Registering result SAFE for location checkErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (20 of 23 remaining) [2024-09-12 18:24:58,213 INFO L785 garLoopResultBuilder]: Registering result SAFE for location checkErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 23 remaining) [2024-09-12 18:24:58,213 INFO L785 garLoopResultBuilder]: Registering result SAFE for location checkErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 23 remaining) [2024-09-12 18:24:58,213 INFO L785 garLoopResultBuilder]: Registering result SAFE for location checkErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 23 remaining) [2024-09-12 18:24:58,213 INFO L785 garLoopResultBuilder]: Registering result SAFE for location checkErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 23 remaining) [2024-09-12 18:24:58,213 INFO L785 garLoopResultBuilder]: Registering result SAFE for location checkErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 23 remaining) [2024-09-12 18:24:58,213 INFO L785 garLoopResultBuilder]: Registering result SAFE for location checkErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 23 remaining) [2024-09-12 18:24:58,213 INFO L785 garLoopResultBuilder]: Registering result SAFE for location checkErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 23 remaining) [2024-09-12 18:24:58,214 INFO L785 garLoopResultBuilder]: Registering result SAFE for location checkErr10ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 23 remaining) [2024-09-12 18:24:58,214 INFO L785 garLoopResultBuilder]: Registering result SAFE for location checkErr11ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 23 remaining) [2024-09-12 18:24:58,214 INFO L785 garLoopResultBuilder]: Registering result SAFE for location lcpErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 23 remaining) [2024-09-12 18:24:58,214 INFO L785 garLoopResultBuilder]: Registering result SAFE for location lcpErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 23 remaining) [2024-09-12 18:24:58,214 INFO L785 garLoopResultBuilder]: Registering result SAFE for location lcpErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 23 remaining) [2024-09-12 18:24:58,214 INFO L785 garLoopResultBuilder]: Registering result SAFE for location lcpErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 23 remaining) [2024-09-12 18:24:58,215 INFO L785 garLoopResultBuilder]: Registering result SAFE for location lcpErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 23 remaining) [2024-09-12 18:24:58,215 INFO L785 garLoopResultBuilder]: Registering result SAFE for location lcpErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 23 remaining) [2024-09-12 18:24:58,215 INFO L785 garLoopResultBuilder]: Registering result SAFE for location lcpErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 23 remaining) [2024-09-12 18:24:58,215 INFO L785 garLoopResultBuilder]: Registering result SAFE for location lcpErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 23 remaining) [2024-09-12 18:24:58,215 INFO L785 garLoopResultBuilder]: Registering result SAFE for location lcpErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 23 remaining) [2024-09-12 18:24:58,215 INFO L785 garLoopResultBuilder]: Registering result SAFE for location lcpErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 23 remaining) [2024-09-12 18:24:58,215 INFO L785 garLoopResultBuilder]: Registering result SAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 23 remaining) [2024-09-12 18:24:58,232 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 18:24:58,419 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26,17 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:24:58,423 INFO L408 BasicCegarLoop]: Path program histogram: [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] [2024-09-12 18:24:58,425 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-09-12 18:25:16,921 WARN L293 SmtUtils]: Spent 14.03s on a formula simplification. DAG size of input: 128 DAG size of output: 153 (called from [L 212] de.uni_freiburg.informatik.ultimate.lib.proofs.floydhoare.HoareAnnotationComposer.or)