./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test6-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 3061b6dc Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test6-2.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash bb48026e7f870ff561a4cdd394c24cb5edb1d0f2fc8e8ef2bffe0b7b8438fda4 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-3061b6d-m [2024-11-19 13:41:44,632 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-19 13:41:44,698 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-19 13:41:44,703 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-19 13:41:44,706 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-19 13:41:44,727 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-19 13:41:44,727 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-19 13:41:44,728 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-19 13:41:44,728 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-19 13:41:44,730 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-19 13:41:44,730 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-19 13:41:44,731 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-19 13:41:44,731 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-19 13:41:44,731 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-19 13:41:44,732 INFO L153 SettingsManager]: * Use SBE=true [2024-11-19 13:41:44,733 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-19 13:41:44,734 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-19 13:41:44,734 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-19 13:41:44,734 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-19 13:41:44,734 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-19 13:41:44,735 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-19 13:41:44,738 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-19 13:41:44,738 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-19 13:41:44,738 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-19 13:41:44,738 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-19 13:41:44,739 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-19 13:41:44,739 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-19 13:41:44,739 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-19 13:41:44,739 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-19 13:41:44,739 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-19 13:41:44,740 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-19 13:41:44,740 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-19 13:41:44,740 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-19 13:41:44,740 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-19 13:41:44,740 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 13:41:44,741 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-19 13:41:44,741 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-19 13:41:44,741 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-19 13:41:44,741 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-19 13:41:44,741 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-19 13:41:44,741 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-19 13:41:44,743 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-19 13:41:44,743 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-19 13:41:44,743 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-19 13:41:44,744 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/ultimate/releaseScripts/default/UAutomizer-linux/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bb48026e7f870ff561a4cdd394c24cb5edb1d0f2fc8e8ef2bffe0b7b8438fda4 [2024-11-19 13:41:44,988 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-19 13:41:45,010 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-19 13:41:45,014 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-19 13:41:45,015 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-19 13:41:45,016 INFO L274 PluginConnector]: CDTParser initialized [2024-11-19 13:41:45,017 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test6-2.i [2024-11-19 13:41:46,373 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-19 13:41:46,702 INFO L384 CDTParser]: Found 1 translation units. [2024-11-19 13:41:46,703 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test6-2.i [2024-11-19 13:41:46,720 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4988f9d68/783e32d4b4224479873d20e1411c27c5/FLAGa77ccdc8b [2024-11-19 13:41:46,940 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4988f9d68/783e32d4b4224479873d20e1411c27c5 [2024-11-19 13:41:46,943 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-19 13:41:46,944 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-19 13:41:46,945 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-19 13:41:46,945 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-19 13:41:46,950 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-19 13:41:46,950 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 01:41:46" (1/1) ... [2024-11-19 13:41:46,951 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@293ffd75 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:41:46, skipping insertion in model container [2024-11-19 13:41:46,951 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 01:41:46" (1/1) ... [2024-11-19 13:41:47,012 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-19 13:41:47,651 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 13:41:47,664 INFO L200 MainTranslator]: Completed pre-run [2024-11-19 13:41:47,786 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 13:41:47,918 INFO L204 MainTranslator]: Completed translation [2024-11-19 13:41:47,918 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:41:47 WrapperNode [2024-11-19 13:41:47,919 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-19 13:41:47,920 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-19 13:41:47,920 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-19 13:41:47,920 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-19 13:41:47,926 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:41:47" (1/1) ... [2024-11-19 13:41:47,965 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:41:47" (1/1) ... [2024-11-19 13:41:48,030 INFO L138 Inliner]: procedures = 282, calls = 353, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 1657 [2024-11-19 13:41:48,031 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-19 13:41:48,031 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-19 13:41:48,031 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-19 13:41:48,031 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-19 13:41:48,047 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:41:47" (1/1) ... [2024-11-19 13:41:48,047 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:41:47" (1/1) ... [2024-11-19 13:41:48,061 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:41:47" (1/1) ... [2024-11-19 13:41:48,170 INFO L175 MemorySlicer]: Split 318 memory accesses to 4 slices as follows [2, 12, 270, 34]. 85 percent of accesses are in the largest equivalence class. The 12 initializations are split as follows [2, 10, 0, 0]. The 62 writes are split as follows [0, 1, 57, 4]. [2024-11-19 13:41:48,170 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:41:47" (1/1) ... [2024-11-19 13:41:48,170 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:41:47" (1/1) ... [2024-11-19 13:41:48,216 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:41:47" (1/1) ... [2024-11-19 13:41:48,232 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:41:47" (1/1) ... [2024-11-19 13:41:48,237 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:41:47" (1/1) ... [2024-11-19 13:41:48,243 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:41:47" (1/1) ... [2024-11-19 13:41:48,254 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-19 13:41:48,255 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-19 13:41:48,255 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-19 13:41:48,255 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-19 13:41:48,256 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:41:47" (1/1) ... [2024-11-19 13:41:48,263 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 13:41:48,276 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 13:41:48,295 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-19 13:41:48,298 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-19 13:41:48,339 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2024-11-19 13:41:48,340 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2024-11-19 13:41:48,340 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-19 13:41:48,340 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-19 13:41:48,340 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-19 13:41:48,340 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-19 13:41:48,340 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-11-19 13:41:48,341 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-19 13:41:48,341 INFO L130 BoogieDeclarations]: Found specification of procedure alt_bzero [2024-11-19 13:41:48,342 INFO L138 BoogieDeclarations]: Found implementation of procedure alt_bzero [2024-11-19 13:41:48,342 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-19 13:41:48,343 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-19 13:41:48,343 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-19 13:41:48,343 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-19 13:41:48,343 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-19 13:41:48,343 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-19 13:41:48,343 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-19 13:41:48,344 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-19 13:41:48,344 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-19 13:41:48,344 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-19 13:41:48,344 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-19 13:41:48,345 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-19 13:41:48,345 INFO L130 BoogieDeclarations]: Found specification of procedure alt_malloc [2024-11-19 13:41:48,345 INFO L138 BoogieDeclarations]: Found implementation of procedure alt_malloc [2024-11-19 13:41:48,345 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-19 13:41:48,345 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-19 13:41:48,345 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-19 13:41:48,345 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-11-19 13:41:48,345 INFO L130 BoogieDeclarations]: Found specification of procedure alt_free [2024-11-19 13:41:48,346 INFO L138 BoogieDeclarations]: Found implementation of procedure alt_free [2024-11-19 13:41:48,346 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-19 13:41:48,346 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-19 13:41:48,346 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-19 13:41:48,346 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-19 13:41:48,346 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-19 13:41:48,346 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-19 13:41:48,571 INFO L238 CfgBuilder]: Building ICFG [2024-11-19 13:41:48,572 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-19 13:41:49,871 INFO L? ?]: Removed 376 outVars from TransFormulas that were not future-live. [2024-11-19 13:41:49,872 INFO L287 CfgBuilder]: Performing block encoding [2024-11-19 13:41:49,902 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-19 13:41:49,903 INFO L316 CfgBuilder]: Removed 72 assume(true) statements. [2024-11-19 13:41:49,904 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 01:41:49 BoogieIcfgContainer [2024-11-19 13:41:49,904 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-19 13:41:49,906 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-19 13:41:49,906 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-19 13:41:49,909 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-19 13:41:49,909 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 01:41:46" (1/3) ... [2024-11-19 13:41:49,909 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f57360b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 01:41:49, skipping insertion in model container [2024-11-19 13:41:49,909 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:41:47" (2/3) ... [2024-11-19 13:41:49,910 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f57360b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 01:41:49, skipping insertion in model container [2024-11-19 13:41:49,910 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 01:41:49" (3/3) ... [2024-11-19 13:41:49,911 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_SAX_test6-2.i [2024-11-19 13:41:49,924 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-19 13:41:49,924 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 14 error locations. [2024-11-19 13:41:49,996 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-19 13:41:50,004 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, 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;@7717c8d6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-19 13:41:50,004 INFO L334 AbstractCegarLoop]: Starting to check reachability of 14 error locations. [2024-11-19 13:41:50,010 INFO L276 IsEmpty]: Start isEmpty. Operand has 501 states, 462 states have (on average 1.606060606060606) internal successors, (742), 479 states have internal predecessors, (742), 20 states have call successors, (20), 5 states have call predecessors, (20), 5 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-19 13:41:50,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-19 13:41:50,016 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 13:41:50,017 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 13:41:50,017 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-19 13:41:50,021 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 13:41:50,022 INFO L85 PathProgramCache]: Analyzing trace with hash 1635847084, now seen corresponding path program 1 times [2024-11-19 13:41:50,030 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 13:41:50,030 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1227324011] [2024-11-19 13:41:50,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 13:41:50,031 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 13:41:50,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 13:41:50,252 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 13:41:50,253 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 13:41:50,253 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1227324011] [2024-11-19 13:41:50,254 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1227324011] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 13:41:50,254 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 13:41:50,254 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 13:41:50,258 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [815761216] [2024-11-19 13:41:50,258 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 13:41:50,263 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-19 13:41:50,263 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 13:41:50,286 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-19 13:41:50,287 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-19 13:41:50,290 INFO L87 Difference]: Start difference. First operand has 501 states, 462 states have (on average 1.606060606060606) internal successors, (742), 479 states have internal predecessors, (742), 20 states have call successors, (20), 5 states have call predecessors, (20), 5 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) Second operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 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) [2024-11-19 13:41:50,361 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 13:41:50,362 INFO L93 Difference]: Finished difference Result 995 states and 1569 transitions. [2024-11-19 13:41:50,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-19 13:41:50,366 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 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) Word has length 8 [2024-11-19 13:41:50,366 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 13:41:50,377 INFO L225 Difference]: With dead ends: 995 [2024-11-19 13:41:50,377 INFO L226 Difference]: Without dead ends: 487 [2024-11-19 13:41:50,382 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-19 13:41:50,385 INFO L432 NwaCegarLoop]: 695 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 695 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 13:41:50,386 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 695 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 13:41:50,407 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 487 states. [2024-11-19 13:41:50,457 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 487 to 487. [2024-11-19 13:41:50,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 487 states, 454 states have (on average 1.4383259911894273) internal successors, (653), 468 states have internal predecessors, (653), 15 states have call successors, (15), 4 states have call predecessors, (15), 4 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-11-19 13:41:50,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 487 states to 487 states and 683 transitions. [2024-11-19 13:41:50,468 INFO L78 Accepts]: Start accepts. Automaton has 487 states and 683 transitions. Word has length 8 [2024-11-19 13:41:50,469 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 13:41:50,469 INFO L471 AbstractCegarLoop]: Abstraction has 487 states and 683 transitions. [2024-11-19 13:41:50,469 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 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) [2024-11-19 13:41:50,470 INFO L276 IsEmpty]: Start isEmpty. Operand 487 states and 683 transitions. [2024-11-19 13:41:50,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-19 13:41:50,470 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 13:41:50,470 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 13:41:50,471 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-19 13:41:50,471 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-19 13:41:50,472 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 13:41:50,472 INFO L85 PathProgramCache]: Analyzing trace with hash 1635849006, now seen corresponding path program 1 times [2024-11-19 13:41:50,472 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 13:41:50,472 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1933413316] [2024-11-19 13:41:50,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 13:41:50,473 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 13:41:50,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-19 13:41:50,535 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1273546930] [2024-11-19 13:41:50,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 13:41:50,535 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 13:41:50,535 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 13:41:50,540 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 13:41:50,541 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-19 13:41:50,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 13:41:50,738 INFO L255 TraceCheckSpWp]: Trace formula consists of 120 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-19 13:41:50,743 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 13:41:50,808 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-11-19 13:41:50,835 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 13:41:50,836 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 13:41:50,836 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 13:41:50,836 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1933413316] [2024-11-19 13:41:50,837 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-19 13:41:50,837 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1273546930] [2024-11-19 13:41:50,841 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1273546930] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 13:41:50,841 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 13:41:50,842 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 13:41:50,842 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1762033534] [2024-11-19 13:41:50,843 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 13:41:50,843 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 13:41:50,843 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 13:41:50,844 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 13:41:50,844 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-19 13:41:50,844 INFO L87 Difference]: Start difference. First operand 487 states and 683 transitions. Second operand has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 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) [2024-11-19 13:41:51,048 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 13:41:51,048 INFO L93 Difference]: Finished difference Result 940 states and 1333 transitions. [2024-11-19 13:41:51,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-19 13:41:51,050 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 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) Word has length 8 [2024-11-19 13:41:51,050 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 13:41:51,056 INFO L225 Difference]: With dead ends: 940 [2024-11-19 13:41:51,056 INFO L226 Difference]: Without dead ends: 938 [2024-11-19 13:41:51,057 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-19 13:41:51,059 INFO L432 NwaCegarLoop]: 659 mSDtfsCounter, 614 mSDsluCounter, 1302 mSDsCounter, 0 mSdLazyCounter, 86 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 628 SdHoareTripleChecker+Valid, 1961 SdHoareTripleChecker+Invalid, 89 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 86 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-19 13:41:51,060 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [628 Valid, 1961 Invalid, 89 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 86 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-19 13:41:51,065 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 938 states. [2024-11-19 13:41:51,106 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 938 to 494. [2024-11-19 13:41:51,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 494 states, 461 states have (on average 1.4338394793926248) internal successors, (661), 475 states have internal predecessors, (661), 15 states have call successors, (15), 4 states have call predecessors, (15), 4 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-11-19 13:41:51,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 494 states to 494 states and 691 transitions. [2024-11-19 13:41:51,112 INFO L78 Accepts]: Start accepts. Automaton has 494 states and 691 transitions. Word has length 8 [2024-11-19 13:41:51,112 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 13:41:51,112 INFO L471 AbstractCegarLoop]: Abstraction has 494 states and 691 transitions. [2024-11-19 13:41:51,113 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 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) [2024-11-19 13:41:51,113 INFO L276 IsEmpty]: Start isEmpty. Operand 494 states and 691 transitions. [2024-11-19 13:41:51,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2024-11-19 13:41:51,115 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 13:41:51,115 INFO L215 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] [2024-11-19 13:41:51,133 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-19 13:41:51,316 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 13:41:51,317 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-19 13:41:51,317 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 13:41:51,318 INFO L85 PathProgramCache]: Analyzing trace with hash -1086501261, now seen corresponding path program 1 times [2024-11-19 13:41:51,318 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 13:41:51,318 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [434835583] [2024-11-19 13:41:51,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 13:41:51,318 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 13:41:51,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 13:41:51,588 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-19 13:41:51,589 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 13:41:51,591 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [434835583] [2024-11-19 13:41:51,591 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [434835583] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 13:41:51,591 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 13:41:51,591 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-19 13:41:51,592 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1899593373] [2024-11-19 13:41:51,592 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 13:41:51,592 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 13:41:51,592 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 13:41:51,594 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 13:41:51,596 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-19 13:41:51,596 INFO L87 Difference]: Start difference. First operand 494 states and 691 transitions. Second operand has 4 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-19 13:41:51,745 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 13:41:51,746 INFO L93 Difference]: Finished difference Result 1192 states and 1688 transitions. [2024-11-19 13:41:51,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-19 13:41:51,747 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 34 [2024-11-19 13:41:51,747 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 13:41:51,753 INFO L225 Difference]: With dead ends: 1192 [2024-11-19 13:41:51,753 INFO L226 Difference]: Without dead ends: 937 [2024-11-19 13:41:51,754 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-19 13:41:51,755 INFO L432 NwaCegarLoop]: 672 mSDtfsCounter, 616 mSDsluCounter, 1319 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 630 SdHoareTripleChecker+Valid, 1991 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-19 13:41:51,757 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [630 Valid, 1991 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-19 13:41:51,758 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 937 states. [2024-11-19 13:41:51,773 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 937 to 494. [2024-11-19 13:41:51,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 494 states, 461 states have (on average 1.4316702819956617) internal successors, (660), 475 states have internal predecessors, (660), 15 states have call successors, (15), 4 states have call predecessors, (15), 4 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-11-19 13:41:51,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 494 states to 494 states and 690 transitions. [2024-11-19 13:41:51,777 INFO L78 Accepts]: Start accepts. Automaton has 494 states and 690 transitions. Word has length 34 [2024-11-19 13:41:51,777 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 13:41:51,778 INFO L471 AbstractCegarLoop]: Abstraction has 494 states and 690 transitions. [2024-11-19 13:41:51,778 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-19 13:41:51,778 INFO L276 IsEmpty]: Start isEmpty. Operand 494 states and 690 transitions. [2024-11-19 13:41:51,780 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2024-11-19 13:41:51,780 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 13:41:51,780 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 13:41:51,780 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-19 13:41:51,781 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-19 13:41:51,781 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 13:41:51,782 INFO L85 PathProgramCache]: Analyzing trace with hash 185612591, now seen corresponding path program 1 times [2024-11-19 13:41:51,782 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 13:41:51,783 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1534203280] [2024-11-19 13:41:51,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 13:41:51,783 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 13:41:51,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 13:41:52,023 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 13:41:52,023 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 13:41:52,023 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1534203280] [2024-11-19 13:41:52,024 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1534203280] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 13:41:52,024 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 13:41:52,024 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-19 13:41:52,024 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [620110501] [2024-11-19 13:41:52,024 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 13:41:52,024 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 13:41:52,025 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 13:41:52,025 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 13:41:52,025 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-19 13:41:52,025 INFO L87 Difference]: Start difference. First operand 494 states and 690 transitions. Second operand has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 13:41:52,112 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 13:41:52,112 INFO L93 Difference]: Finished difference Result 982 states and 1374 transitions. [2024-11-19 13:41:52,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-19 13:41:52,113 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 64 [2024-11-19 13:41:52,113 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 13:41:52,116 INFO L225 Difference]: With dead ends: 982 [2024-11-19 13:41:52,117 INFO L226 Difference]: Without dead ends: 497 [2024-11-19 13:41:52,118 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-19 13:41:52,120 INFO L432 NwaCegarLoop]: 655 mSDtfsCounter, 105 mSDsluCounter, 1217 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 105 SdHoareTripleChecker+Valid, 1872 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-19 13:41:52,121 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [105 Valid, 1872 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-19 13:41:52,124 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 497 states. [2024-11-19 13:41:52,132 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 497 to 494. [2024-11-19 13:41:52,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 494 states, 461 states have (on average 1.4164859002169197) internal successors, (653), 475 states have internal predecessors, (653), 15 states have call successors, (15), 4 states have call predecessors, (15), 4 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-11-19 13:41:52,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 494 states to 494 states and 683 transitions. [2024-11-19 13:41:52,135 INFO L78 Accepts]: Start accepts. Automaton has 494 states and 683 transitions. Word has length 64 [2024-11-19 13:41:52,136 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 13:41:52,136 INFO L471 AbstractCegarLoop]: Abstraction has 494 states and 683 transitions. [2024-11-19 13:41:52,136 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 13:41:52,137 INFO L276 IsEmpty]: Start isEmpty. Operand 494 states and 683 transitions. [2024-11-19 13:41:52,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2024-11-19 13:41:52,140 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 13:41:52,140 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 13:41:52,140 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-19 13:41:52,140 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-19 13:41:52,141 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 13:41:52,141 INFO L85 PathProgramCache]: Analyzing trace with hash -878587357, now seen corresponding path program 1 times [2024-11-19 13:41:52,141 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 13:41:52,141 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2141505855] [2024-11-19 13:41:52,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 13:41:52,142 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 13:41:52,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 13:41:52,388 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 13:41:52,388 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 13:41:52,388 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2141505855] [2024-11-19 13:41:52,389 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2141505855] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 13:41:52,389 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 13:41:52,389 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 13:41:52,389 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2103020293] [2024-11-19 13:41:52,390 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 13:41:52,390 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 13:41:52,390 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 13:41:52,391 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 13:41:52,391 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-19 13:41:52,391 INFO L87 Difference]: Start difference. First operand 494 states and 683 transitions. Second operand has 4 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 13:41:52,459 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 13:41:52,459 INFO L93 Difference]: Finished difference Result 909 states and 1268 transitions. [2024-11-19 13:41:52,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-19 13:41:52,459 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 64 [2024-11-19 13:41:52,460 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 13:41:52,467 INFO L225 Difference]: With dead ends: 909 [2024-11-19 13:41:52,468 INFO L226 Difference]: Without dead ends: 905 [2024-11-19 13:41:52,469 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-19 13:41:52,469 INFO L432 NwaCegarLoop]: 673 mSDtfsCounter, 516 mSDsluCounter, 1335 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 516 SdHoareTripleChecker+Valid, 2008 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 13:41:52,470 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [516 Valid, 2008 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 13:41:52,471 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 905 states. [2024-11-19 13:41:52,491 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 905 to 897. [2024-11-19 13:41:52,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 897 states, 856 states have (on average 1.425233644859813) internal successors, (1220), 872 states have internal predecessors, (1220), 22 states have call successors, (22), 7 states have call predecessors, (22), 5 states have return successors, (22), 18 states have call predecessors, (22), 22 states have call successors, (22) [2024-11-19 13:41:52,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 897 states to 897 states and 1264 transitions. [2024-11-19 13:41:52,500 INFO L78 Accepts]: Start accepts. Automaton has 897 states and 1264 transitions. Word has length 64 [2024-11-19 13:41:52,500 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 13:41:52,502 INFO L471 AbstractCegarLoop]: Abstraction has 897 states and 1264 transitions. [2024-11-19 13:41:52,502 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 13:41:52,502 INFO L276 IsEmpty]: Start isEmpty. Operand 897 states and 1264 transitions. [2024-11-19 13:41:52,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2024-11-19 13:41:52,507 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 13:41:52,507 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 13:41:52,507 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-19 13:41:52,508 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting alt_bzeroErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-19 13:41:52,508 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 13:41:52,508 INFO L85 PathProgramCache]: Analyzing trace with hash -240672312, now seen corresponding path program 1 times [2024-11-19 13:41:52,508 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 13:41:52,508 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1857155455] [2024-11-19 13:41:52,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 13:41:52,509 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 13:41:52,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 13:41:52,723 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 13:41:52,723 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 13:41:52,723 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1857155455] [2024-11-19 13:41:52,723 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1857155455] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 13:41:52,724 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 13:41:52,724 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 13:41:52,724 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [460575716] [2024-11-19 13:41:52,724 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 13:41:52,724 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 13:41:52,724 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 13:41:52,725 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 13:41:52,725 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 13:41:52,725 INFO L87 Difference]: Start difference. First operand 897 states and 1264 transitions. Second operand has 3 states, 2 states have (on average 35.5) internal successors, (71), 3 states have internal predecessors, (71), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-19 13:41:52,761 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 13:41:52,762 INFO L93 Difference]: Finished difference Result 1171 states and 1640 transitions. [2024-11-19 13:41:52,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 13:41:52,763 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 35.5) internal successors, (71), 3 states have internal predecessors, (71), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 74 [2024-11-19 13:41:52,763 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 13:41:52,768 INFO L225 Difference]: With dead ends: 1171 [2024-11-19 13:41:52,769 INFO L226 Difference]: Without dead ends: 1169 [2024-11-19 13:41:52,770 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 13:41:52,771 INFO L432 NwaCegarLoop]: 673 mSDtfsCounter, 544 mSDsluCounter, 669 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 544 SdHoareTripleChecker+Valid, 1342 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 13:41:52,771 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [544 Valid, 1342 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 13:41:52,773 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1169 states. [2024-11-19 13:41:52,799 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1169 to 1159. [2024-11-19 13:41:52,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1159 states, 1105 states have (on average 1.4244343891402715) internal successors, (1574), 1122 states have internal predecessors, (1574), 32 states have call successors, (32), 10 states have call predecessors, (32), 8 states have return successors, (32), 28 states have call predecessors, (32), 32 states have call successors, (32) [2024-11-19 13:41:52,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1159 states to 1159 states and 1638 transitions. [2024-11-19 13:41:52,806 INFO L78 Accepts]: Start accepts. Automaton has 1159 states and 1638 transitions. Word has length 74 [2024-11-19 13:41:52,807 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 13:41:52,807 INFO L471 AbstractCegarLoop]: Abstraction has 1159 states and 1638 transitions. [2024-11-19 13:41:52,808 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 35.5) internal successors, (71), 3 states have internal predecessors, (71), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-19 13:41:52,808 INFO L276 IsEmpty]: Start isEmpty. Operand 1159 states and 1638 transitions. [2024-11-19 13:41:52,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2024-11-19 13:41:52,810 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 13:41:52,810 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 13:41:52,810 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-19 13:41:52,811 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-19 13:41:52,811 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 13:41:52,811 INFO L85 PathProgramCache]: Analyzing trace with hash 980932139, now seen corresponding path program 1 times [2024-11-19 13:41:52,811 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 13:41:52,812 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1511117906] [2024-11-19 13:41:52,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 13:41:52,812 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 13:41:52,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 13:41:53,177 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 13:41:53,178 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 13:41:53,178 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1511117906] [2024-11-19 13:41:53,178 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1511117906] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 13:41:53,178 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [594663133] [2024-11-19 13:41:53,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 13:41:53,178 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 13:41:53,178 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 13:41:53,180 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 13:41:53,182 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-19 13:41:53,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 13:41:53,471 INFO L255 TraceCheckSpWp]: Trace formula consists of 506 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-19 13:41:53,476 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 13:41:53,567 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 13:41:53,569 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 13:41:53,569 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [594663133] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 13:41:53,569 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-19 13:41:53,570 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [7] total 10 [2024-11-19 13:41:53,570 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1263916189] [2024-11-19 13:41:53,570 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 13:41:53,570 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-19 13:41:53,571 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 13:41:53,571 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 13:41:53,571 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2024-11-19 13:41:53,571 INFO L87 Difference]: Start difference. First operand 1159 states and 1638 transitions. Second operand has 5 states, 4 states have (on average 19.5) internal successors, (78), 5 states have internal predecessors, (78), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-19 13:41:53,648 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 13:41:53,649 INFO L93 Difference]: Finished difference Result 1576 states and 2224 transitions. [2024-11-19 13:41:53,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-19 13:41:53,649 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 19.5) internal successors, (78), 5 states have internal predecessors, (78), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 83 [2024-11-19 13:41:53,650 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 13:41:53,656 INFO L225 Difference]: With dead ends: 1576 [2024-11-19 13:41:53,656 INFO L226 Difference]: Without dead ends: 1575 [2024-11-19 13:41:53,657 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 82 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2024-11-19 13:41:53,658 INFO L432 NwaCegarLoop]: 666 mSDtfsCounter, 636 mSDsluCounter, 1259 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 636 SdHoareTripleChecker+Valid, 1925 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 13:41:53,658 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [636 Valid, 1925 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 13:41:53,660 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1575 states. [2024-11-19 13:41:53,689 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1575 to 1525. [2024-11-19 13:41:53,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1525 states, 1464 states have (on average 1.4296448087431695) internal successors, (2093), 1483 states have internal predecessors, (2093), 37 states have call successors, (37), 13 states have call predecessors, (37), 10 states have return successors, (37), 30 states have call predecessors, (37), 37 states have call successors, (37) [2024-11-19 13:41:53,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1525 states to 1525 states and 2167 transitions. [2024-11-19 13:41:53,698 INFO L78 Accepts]: Start accepts. Automaton has 1525 states and 2167 transitions. Word has length 83 [2024-11-19 13:41:53,698 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 13:41:53,698 INFO L471 AbstractCegarLoop]: Abstraction has 1525 states and 2167 transitions. [2024-11-19 13:41:53,698 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 19.5) internal successors, (78), 5 states have internal predecessors, (78), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-19 13:41:53,699 INFO L276 IsEmpty]: Start isEmpty. Operand 1525 states and 2167 transitions. [2024-11-19 13:41:53,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-11-19 13:41:53,700 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 13:41:53,700 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 13:41:53,718 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-19 13:41:53,900 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2024-11-19 13:41:53,901 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-19 13:41:53,901 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 13:41:53,901 INFO L85 PathProgramCache]: Analyzing trace with hash 344125278, now seen corresponding path program 1 times [2024-11-19 13:41:53,902 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 13:41:53,902 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1472675360] [2024-11-19 13:41:53,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 13:41:53,902 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 13:41:53,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 13:41:54,252 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 13:41:54,252 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 13:41:54,252 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1472675360] [2024-11-19 13:41:54,253 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1472675360] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 13:41:54,253 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1438812300] [2024-11-19 13:41:54,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 13:41:54,253 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 13:41:54,253 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 13:41:54,256 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 13:41:54,257 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-19 13:41:54,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 13:41:54,527 INFO L255 TraceCheckSpWp]: Trace formula consists of 507 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-19 13:41:54,536 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 13:41:54,702 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 13:41:54,703 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 13:41:54,933 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 13:41:54,934 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1438812300] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 13:41:54,934 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 13:41:54,934 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6, 7] total 17 [2024-11-19 13:41:54,934 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [678859341] [2024-11-19 13:41:54,934 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 13:41:54,935 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-19 13:41:54,935 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 13:41:54,936 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-19 13:41:54,936 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=235, Unknown=0, NotChecked=0, Total=306 [2024-11-19 13:41:54,936 INFO L87 Difference]: Start difference. First operand 1525 states and 2167 transitions. Second operand has 18 states, 17 states have (on average 13.235294117647058) internal successors, (225), 15 states have internal predecessors, (225), 5 states have call successors, (8), 6 states have call predecessors, (8), 5 states have return successors, (6), 2 states have call predecessors, (6), 5 states have call successors, (6) [2024-11-19 13:41:56,071 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 13:41:56,071 INFO L93 Difference]: Finished difference Result 4158 states and 5901 transitions. [2024-11-19 13:41:56,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2024-11-19 13:41:56,072 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 13.235294117647058) internal successors, (225), 15 states have internal predecessors, (225), 5 states have call successors, (8), 6 states have call predecessors, (8), 5 states have return successors, (6), 2 states have call predecessors, (6), 5 states have call successors, (6) Word has length 84 [2024-11-19 13:41:56,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 13:41:56,089 INFO L225 Difference]: With dead ends: 4158 [2024-11-19 13:41:56,089 INFO L226 Difference]: Without dead ends: 4156 [2024-11-19 13:41:56,091 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 196 GetRequests, 162 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 253 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=376, Invalid=884, Unknown=0, NotChecked=0, Total=1260 [2024-11-19 13:41:56,092 INFO L432 NwaCegarLoop]: 731 mSDtfsCounter, 7715 mSDsluCounter, 7909 mSDsCounter, 0 mSdLazyCounter, 595 mSolverCounterSat, 387 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7740 SdHoareTripleChecker+Valid, 8640 SdHoareTripleChecker+Invalid, 982 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 387 IncrementalHoareTripleChecker+Valid, 595 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-19 13:41:56,092 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [7740 Valid, 8640 Invalid, 982 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [387 Valid, 595 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-19 13:41:56,096 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4156 states. [2024-11-19 13:41:56,166 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4156 to 3179. [2024-11-19 13:41:56,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3179 states, 3059 states have (on average 1.4233409610983982) internal successors, (4354), 3080 states have internal predecessors, (4354), 83 states have call successors, (83), 28 states have call predecessors, (83), 23 states have return successors, (106), 70 states have call predecessors, (106), 83 states have call successors, (106) [2024-11-19 13:41:56,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3179 states to 3179 states and 4543 transitions. [2024-11-19 13:41:56,184 INFO L78 Accepts]: Start accepts. Automaton has 3179 states and 4543 transitions. Word has length 84 [2024-11-19 13:41:56,184 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 13:41:56,184 INFO L471 AbstractCegarLoop]: Abstraction has 3179 states and 4543 transitions. [2024-11-19 13:41:56,184 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 13.235294117647058) internal successors, (225), 15 states have internal predecessors, (225), 5 states have call successors, (8), 6 states have call predecessors, (8), 5 states have return successors, (6), 2 states have call predecessors, (6), 5 states have call successors, (6) [2024-11-19 13:41:56,185 INFO L276 IsEmpty]: Start isEmpty. Operand 3179 states and 4543 transitions. [2024-11-19 13:41:56,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2024-11-19 13:41:56,185 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 13:41:56,186 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 13:41:56,203 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-19 13:41:56,386 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 13:41:56,387 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-19 13:41:56,387 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 13:41:56,388 INFO L85 PathProgramCache]: Analyzing trace with hash -1558756002, now seen corresponding path program 1 times [2024-11-19 13:41:56,388 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 13:41:56,388 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [368999132] [2024-11-19 13:41:56,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 13:41:56,388 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 13:41:56,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 13:41:56,554 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 13:41:56,555 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 13:41:56,555 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [368999132] [2024-11-19 13:41:56,555 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [368999132] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 13:41:56,555 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 13:41:56,555 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 13:41:56,555 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [721299549] [2024-11-19 13:41:56,555 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 13:41:56,556 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 13:41:56,556 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 13:41:56,556 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 13:41:56,556 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 13:41:56,556 INFO L87 Difference]: Start difference. First operand 3179 states and 4543 transitions. Second operand has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 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) [2024-11-19 13:41:56,736 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 13:41:56,737 INFO L93 Difference]: Finished difference Result 6616 states and 9488 transitions. [2024-11-19 13:41:56,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 13:41:56,737 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 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) Word has length 82 [2024-11-19 13:41:56,737 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 13:41:56,751 INFO L225 Difference]: With dead ends: 6616 [2024-11-19 13:41:56,751 INFO L226 Difference]: Without dead ends: 3446 [2024-11-19 13:41:56,757 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 13:41:56,759 INFO L432 NwaCegarLoop]: 903 mSDtfsCounter, 420 mSDsluCounter, 640 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 425 SdHoareTripleChecker+Valid, 1543 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-19 13:41:56,759 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [425 Valid, 1543 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-19 13:41:56,763 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3446 states. [2024-11-19 13:41:56,847 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3446 to 3332. [2024-11-19 13:41:56,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3332 states, 3218 states have (on average 1.4334990677439403) internal successors, (4613), 3238 states have internal predecessors, (4613), 80 states have call successors, (80), 24 states have call predecessors, (80), 20 states have return successors, (102), 69 states have call predecessors, (102), 80 states have call successors, (102) [2024-11-19 13:41:56,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3332 states to 3332 states and 4795 transitions. [2024-11-19 13:41:56,870 INFO L78 Accepts]: Start accepts. Automaton has 3332 states and 4795 transitions. Word has length 82 [2024-11-19 13:41:56,870 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 13:41:56,870 INFO L471 AbstractCegarLoop]: Abstraction has 3332 states and 4795 transitions. [2024-11-19 13:41:56,871 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 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) [2024-11-19 13:41:56,871 INFO L276 IsEmpty]: Start isEmpty. Operand 3332 states and 4795 transitions. [2024-11-19 13:41:56,871 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2024-11-19 13:41:56,872 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 13:41:56,872 INFO L215 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 13:41:56,872 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-19 13:41:56,872 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting alt_bzeroErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-19 13:41:56,873 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 13:41:56,873 INFO L85 PathProgramCache]: Analyzing trace with hash -1908045712, now seen corresponding path program 1 times [2024-11-19 13:41:56,873 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 13:41:56,873 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [829603026] [2024-11-19 13:41:56,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 13:41:56,873 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 13:41:56,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 13:41:57,182 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-11-19 13:41:57,183 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 13:41:57,183 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [829603026] [2024-11-19 13:41:57,183 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [829603026] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 13:41:57,183 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [404304739] [2024-11-19 13:41:57,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 13:41:57,184 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 13:41:57,184 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 13:41:57,185 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 13:41:57,187 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-19 13:41:57,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 13:41:57,484 INFO L255 TraceCheckSpWp]: Trace formula consists of 601 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-19 13:41:57,488 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 13:41:57,628 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 7 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 13:41:57,629 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 13:41:57,826 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-11-19 13:41:57,826 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [404304739] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-19 13:41:57,827 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-19 13:41:57,827 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5, 4] total 12 [2024-11-19 13:41:57,827 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1088969991] [2024-11-19 13:41:57,827 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 13:41:57,828 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-19 13:41:57,828 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 13:41:57,828 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-19 13:41:57,828 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=106, Unknown=0, NotChecked=0, Total=156 [2024-11-19 13:41:57,829 INFO L87 Difference]: Start difference. First operand 3332 states and 4795 transitions. Second operand has 6 states, 5 states have (on average 16.0) internal successors, (80), 6 states have internal predecessors, (80), 2 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-19 13:41:57,952 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 13:41:57,952 INFO L93 Difference]: Finished difference Result 3332 states and 4795 transitions. [2024-11-19 13:41:57,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 13:41:57,953 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 16.0) internal successors, (80), 6 states have internal predecessors, (80), 2 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 93 [2024-11-19 13:41:57,953 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 13:41:57,966 INFO L225 Difference]: With dead ends: 3332 [2024-11-19 13:41:57,966 INFO L226 Difference]: Without dead ends: 3331 [2024-11-19 13:41:57,968 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 190 GetRequests, 178 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=50, Invalid=106, Unknown=0, NotChecked=0, Total=156 [2024-11-19 13:41:57,968 INFO L432 NwaCegarLoop]: 671 mSDtfsCounter, 1302 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1302 SdHoareTripleChecker+Valid, 671 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-19 13:41:57,969 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1302 Valid, 671 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-19 13:41:57,972 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3331 states. [2024-11-19 13:41:58,104 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3331 to 3331. [2024-11-19 13:41:58,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3331 states, 3218 states have (on average 1.4319453076444997) internal successors, (4608), 3237 states have internal predecessors, (4608), 80 states have call successors, (80), 24 states have call predecessors, (80), 20 states have return successors, (102), 69 states have call predecessors, (102), 80 states have call successors, (102) [2024-11-19 13:41:58,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3331 states to 3331 states and 4790 transitions. [2024-11-19 13:41:58,122 INFO L78 Accepts]: Start accepts. Automaton has 3331 states and 4790 transitions. Word has length 93 [2024-11-19 13:41:58,122 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 13:41:58,123 INFO L471 AbstractCegarLoop]: Abstraction has 3331 states and 4790 transitions. [2024-11-19 13:41:58,123 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 16.0) internal successors, (80), 6 states have internal predecessors, (80), 2 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-19 13:41:58,123 INFO L276 IsEmpty]: Start isEmpty. Operand 3331 states and 4790 transitions. [2024-11-19 13:41:58,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-11-19 13:41:58,124 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 13:41:58,124 INFO L215 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 13:41:58,142 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-19 13:41:58,325 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 13:41:58,326 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting alt_bzeroErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-19 13:41:58,326 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 13:41:58,326 INFO L85 PathProgramCache]: Analyzing trace with hash 980125141, now seen corresponding path program 1 times [2024-11-19 13:41:58,326 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 13:41:58,327 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [316106996] [2024-11-19 13:41:58,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 13:41:58,327 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 13:41:58,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 13:41:58,605 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-11-19 13:41:58,606 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 13:41:58,606 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [316106996] [2024-11-19 13:41:58,606 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [316106996] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 13:41:58,606 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [991919123] [2024-11-19 13:41:58,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 13:41:58,607 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 13:41:58,607 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 13:41:58,609 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 13:41:58,610 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-19 13:41:58,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 13:41:58,914 INFO L255 TraceCheckSpWp]: Trace formula consists of 602 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-19 13:41:58,919 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 13:41:59,050 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 13:41:59,050 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 13:41:59,260 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-11-19 13:41:59,261 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [991919123] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 13:41:59,261 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 13:41:59,261 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4, 5] total 12 [2024-11-19 13:41:59,261 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1948380365] [2024-11-19 13:41:59,261 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 13:41:59,262 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-19 13:41:59,262 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 13:41:59,263 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-19 13:41:59,265 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=100, Unknown=0, NotChecked=0, Total=156 [2024-11-19 13:41:59,265 INFO L87 Difference]: Start difference. First operand 3331 states and 4790 transitions. Second operand has 13 states, 12 states have (on average 19.75) internal successors, (237), 13 states have internal predecessors, (237), 5 states have call successors, (11), 7 states have call predecessors, (11), 6 states have return successors, (9), 5 states have call predecessors, (9), 5 states have call successors, (9) [2024-11-19 13:41:59,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 13:41:59,864 INFO L93 Difference]: Finished difference Result 6509 states and 9324 transitions. [2024-11-19 13:41:59,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-19 13:41:59,865 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 19.75) internal successors, (237), 13 states have internal predecessors, (237), 5 states have call successors, (11), 7 states have call predecessors, (11), 6 states have return successors, (9), 5 states have call predecessors, (9), 5 states have call successors, (9) Word has length 94 [2024-11-19 13:41:59,865 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 13:41:59,890 INFO L225 Difference]: With dead ends: 6509 [2024-11-19 13:41:59,890 INFO L226 Difference]: Without dead ends: 6508 [2024-11-19 13:41:59,894 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 205 GetRequests, 185 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 81 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=152, Invalid=268, Unknown=0, NotChecked=0, Total=420 [2024-11-19 13:41:59,895 INFO L432 NwaCegarLoop]: 639 mSDtfsCounter, 2715 mSDsluCounter, 5047 mSDsCounter, 0 mSdLazyCounter, 332 mSolverCounterSat, 179 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2733 SdHoareTripleChecker+Valid, 5686 SdHoareTripleChecker+Invalid, 511 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 179 IncrementalHoareTripleChecker+Valid, 332 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-19 13:41:59,895 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2733 Valid, 5686 Invalid, 511 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [179 Valid, 332 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-19 13:41:59,901 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6508 states. [2024-11-19 13:42:00,115 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6508 to 6070. [2024-11-19 13:42:00,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6070 states, 5848 states have (on average 1.427325581395349) internal successors, (8347), 5872 states have internal predecessors, (8347), 159 states have call successors, (159), 56 states have call predecessors, (159), 50 states have return successors, (197), 141 states have call predecessors, (197), 159 states have call successors, (197) [2024-11-19 13:42:00,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6070 states to 6070 states and 8703 transitions. [2024-11-19 13:42:00,142 INFO L78 Accepts]: Start accepts. Automaton has 6070 states and 8703 transitions. Word has length 94 [2024-11-19 13:42:00,143 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 13:42:00,143 INFO L471 AbstractCegarLoop]: Abstraction has 6070 states and 8703 transitions. [2024-11-19 13:42:00,143 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 19.75) internal successors, (237), 13 states have internal predecessors, (237), 5 states have call successors, (11), 7 states have call predecessors, (11), 6 states have return successors, (9), 5 states have call predecessors, (9), 5 states have call successors, (9) [2024-11-19 13:42:00,143 INFO L276 IsEmpty]: Start isEmpty. Operand 6070 states and 8703 transitions. [2024-11-19 13:42:00,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2024-11-19 13:42:00,146 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 13:42:00,147 INFO L215 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 13:42:00,167 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-11-19 13:42:00,347 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2024-11-19 13:42:00,348 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-19 13:42:00,348 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 13:42:00,349 INFO L85 PathProgramCache]: Analyzing trace with hash 2083756214, now seen corresponding path program 1 times [2024-11-19 13:42:00,349 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 13:42:00,349 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [669044769] [2024-11-19 13:42:00,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 13:42:00,349 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 13:42:00,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 13:42:00,698 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-19 13:42:00,699 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 13:42:00,699 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [669044769] [2024-11-19 13:42:00,699 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [669044769] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 13:42:00,699 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 13:42:00,699 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 13:42:00,699 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1803267875] [2024-11-19 13:42:00,699 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 13:42:00,701 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 13:42:00,701 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 13:42:00,701 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 13:42:00,701 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-19 13:42:00,702 INFO L87 Difference]: Start difference. First operand 6070 states and 8703 transitions. Second operand has 4 states, 3 states have (on average 33.333333333333336) internal successors, (100), 4 states have internal predecessors, (100), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-19 13:42:00,979 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 13:42:00,979 INFO L93 Difference]: Finished difference Result 8326 states and 11950 transitions. [2024-11-19 13:42:00,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-19 13:42:00,980 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 33.333333333333336) internal successors, (100), 4 states have internal predecessors, (100), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 120 [2024-11-19 13:42:00,980 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 13:42:01,017 INFO L225 Difference]: With dead ends: 8326 [2024-11-19 13:42:01,017 INFO L226 Difference]: Without dead ends: 8324 [2024-11-19 13:42:01,025 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-19 13:42:01,026 INFO L432 NwaCegarLoop]: 653 mSDtfsCounter, 521 mSDsluCounter, 1288 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 531 SdHoareTripleChecker+Valid, 1941 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-19 13:42:01,026 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [531 Valid, 1941 Invalid, 84 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-19 13:42:01,035 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8324 states. [2024-11-19 13:42:01,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8324 to 6238. [2024-11-19 13:42:01,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6238 states, 6007 states have (on average 1.4225070750790745) internal successors, (8545), 6032 states have internal predecessors, (8545), 168 states have call successors, (168), 56 states have call predecessors, (168), 50 states have return successors, (209), 149 states have call predecessors, (209), 168 states have call successors, (209) [2024-11-19 13:42:01,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6238 states to 6238 states and 8922 transitions. [2024-11-19 13:42:01,245 INFO L78 Accepts]: Start accepts. Automaton has 6238 states and 8922 transitions. Word has length 120 [2024-11-19 13:42:01,245 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 13:42:01,245 INFO L471 AbstractCegarLoop]: Abstraction has 6238 states and 8922 transitions. [2024-11-19 13:42:01,246 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 33.333333333333336) internal successors, (100), 4 states have internal predecessors, (100), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-19 13:42:01,246 INFO L276 IsEmpty]: Start isEmpty. Operand 6238 states and 8922 transitions. [2024-11-19 13:42:01,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2024-11-19 13:42:01,247 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 13:42:01,247 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 13:42:01,247 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-19 13:42:01,248 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-19 13:42:01,248 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 13:42:01,248 INFO L85 PathProgramCache]: Analyzing trace with hash -1429916002, now seen corresponding path program 1 times [2024-11-19 13:42:01,249 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 13:42:01,249 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1679694186] [2024-11-19 13:42:01,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 13:42:01,249 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 13:42:01,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 13:42:01,677 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 6 proven. 7 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-11-19 13:42:01,678 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 13:42:01,678 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1679694186] [2024-11-19 13:42:01,678 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1679694186] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 13:42:01,678 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2051697124] [2024-11-19 13:42:01,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 13:42:01,679 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 13:42:01,679 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 13:42:01,681 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 13:42:01,682 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-19 13:42:02,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 13:42:02,075 INFO L255 TraceCheckSpWp]: Trace formula consists of 795 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-19 13:42:02,079 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 13:42:02,205 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-11-19 13:42:02,206 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 13:42:02,206 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2051697124] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 13:42:02,206 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-19 13:42:02,206 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [7] total 10 [2024-11-19 13:42:02,206 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [500380011] [2024-11-19 13:42:02,207 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 13:42:02,207 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-19 13:42:02,207 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 13:42:02,208 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-19 13:42:02,208 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2024-11-19 13:42:02,208 INFO L87 Difference]: Start difference. First operand 6238 states and 8922 transitions. Second operand has 7 states, 7 states have (on average 16.142857142857142) internal successors, (113), 5 states have internal predecessors, (113), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-19 13:42:02,559 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 13:42:02,560 INFO L93 Difference]: Finished difference Result 11822 states and 16948 transitions. [2024-11-19 13:42:02,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-19 13:42:02,560 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.142857142857142) internal successors, (113), 5 states have internal predecessors, (113), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) Word has length 127 [2024-11-19 13:42:02,561 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 13:42:02,576 INFO L225 Difference]: With dead ends: 11822 [2024-11-19 13:42:02,577 INFO L226 Difference]: Without dead ends: 5988 [2024-11-19 13:42:02,583 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 137 GetRequests, 126 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=116, Unknown=0, NotChecked=0, Total=156 [2024-11-19 13:42:02,584 INFO L432 NwaCegarLoop]: 651 mSDtfsCounter, 161 mSDsluCounter, 3148 mSDsCounter, 0 mSdLazyCounter, 212 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 162 SdHoareTripleChecker+Valid, 3799 SdHoareTripleChecker+Invalid, 227 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 212 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-19 13:42:02,585 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [162 Valid, 3799 Invalid, 227 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 212 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-19 13:42:02,590 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5988 states. [2024-11-19 13:42:02,720 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5988 to 5988. [2024-11-19 13:42:02,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5988 states, 5774 states have (on average 1.4255282299965362) internal successors, (8231), 5797 states have internal predecessors, (8231), 157 states have call successors, (157), 50 states have call predecessors, (157), 44 states have return successors, (192), 140 states have call predecessors, (192), 157 states have call successors, (192) [2024-11-19 13:42:02,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5988 states to 5988 states and 8580 transitions. [2024-11-19 13:42:02,749 INFO L78 Accepts]: Start accepts. Automaton has 5988 states and 8580 transitions. Word has length 127 [2024-11-19 13:42:02,749 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 13:42:02,749 INFO L471 AbstractCegarLoop]: Abstraction has 5988 states and 8580 transitions. [2024-11-19 13:42:02,750 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.142857142857142) internal successors, (113), 5 states have internal predecessors, (113), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-19 13:42:02,750 INFO L276 IsEmpty]: Start isEmpty. Operand 5988 states and 8580 transitions. [2024-11-19 13:42:02,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2024-11-19 13:42:02,752 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 13:42:02,752 INFO L215 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 13:42:02,771 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-19 13:42:02,952 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 13:42:02,953 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-19 13:42:02,953 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 13:42:02,953 INFO L85 PathProgramCache]: Analyzing trace with hash 2038802715, now seen corresponding path program 1 times [2024-11-19 13:42:02,953 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 13:42:02,953 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1689888129] [2024-11-19 13:42:02,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 13:42:02,954 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 13:42:03,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 13:42:03,366 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-19 13:42:03,367 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 13:42:03,367 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1689888129] [2024-11-19 13:42:03,367 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1689888129] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 13:42:03,367 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1173763511] [2024-11-19 13:42:03,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 13:42:03,368 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 13:42:03,368 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 13:42:03,369 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 13:42:03,371 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-19 13:42:03,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 13:42:03,822 INFO L255 TraceCheckSpWp]: Trace formula consists of 805 conjuncts, 28 conjuncts are in the unsatisfiable core [2024-11-19 13:42:03,827 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 13:42:04,012 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-19 13:42:04,013 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 13:42:04,013 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1173763511] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 13:42:04,013 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-19 13:42:04,013 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [5] total 10 [2024-11-19 13:42:04,013 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1575292636] [2024-11-19 13:42:04,014 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 13:42:04,014 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-19 13:42:04,014 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 13:42:04,015 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-19 13:42:04,015 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-11-19 13:42:04,015 INFO L87 Difference]: Start difference. First operand 5988 states and 8580 transitions. Second operand has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 7 states have internal predecessors, (111), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-19 13:42:04,752 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 13:42:04,753 INFO L93 Difference]: Finished difference Result 12394 states and 17725 transitions. [2024-11-19 13:42:04,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-19 13:42:04,754 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 7 states have internal predecessors, (111), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 132 [2024-11-19 13:42:04,754 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 13:42:04,769 INFO L225 Difference]: With dead ends: 12394 [2024-11-19 13:42:04,769 INFO L226 Difference]: Without dead ends: 6495 [2024-11-19 13:42:04,780 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 136 GetRequests, 128 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-11-19 13:42:04,781 INFO L432 NwaCegarLoop]: 654 mSDtfsCounter, 15 mSDsluCounter, 2600 mSDsCounter, 0 mSdLazyCounter, 795 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 3254 SdHoareTripleChecker+Invalid, 798 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 795 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-19 13:42:04,781 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 3254 Invalid, 798 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 795 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-19 13:42:04,786 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6495 states. [2024-11-19 13:42:04,935 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6495 to 6443. [2024-11-19 13:42:04,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6443 states, 6229 states have (on average 1.411141435222347) internal successors, (8790), 6252 states have internal predecessors, (8790), 157 states have call successors, (157), 50 states have call predecessors, (157), 44 states have return successors, (192), 140 states have call predecessors, (192), 157 states have call successors, (192) [2024-11-19 13:42:05,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6443 states to 6443 states and 9139 transitions. [2024-11-19 13:42:05,039 INFO L78 Accepts]: Start accepts. Automaton has 6443 states and 9139 transitions. Word has length 132 [2024-11-19 13:42:05,040 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 13:42:05,040 INFO L471 AbstractCegarLoop]: Abstraction has 6443 states and 9139 transitions. [2024-11-19 13:42:05,040 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 7 states have internal predecessors, (111), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-19 13:42:05,040 INFO L276 IsEmpty]: Start isEmpty. Operand 6443 states and 9139 transitions. [2024-11-19 13:42:05,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2024-11-19 13:42:05,041 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 13:42:05,041 INFO L215 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 13:42:05,061 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-19 13:42:05,245 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 13:42:05,246 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-19 13:42:05,246 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 13:42:05,247 INFO L85 PathProgramCache]: Analyzing trace with hash 1820581846, now seen corresponding path program 1 times [2024-11-19 13:42:05,247 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 13:42:05,247 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1200068090] [2024-11-19 13:42:05,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 13:42:05,247 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 13:42:05,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 13:42:05,583 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-19 13:42:05,583 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 13:42:05,583 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1200068090] [2024-11-19 13:42:05,583 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1200068090] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 13:42:05,583 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 13:42:05,583 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-19 13:42:05,583 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1952228777] [2024-11-19 13:42:05,583 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 13:42:05,584 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-19 13:42:05,584 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 13:42:05,584 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-19 13:42:05,584 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-19 13:42:05,585 INFO L87 Difference]: Start difference. First operand 6443 states and 9139 transitions. Second operand has 7 states, 7 states have (on average 16.0) internal successors, (112), 7 states have internal predecessors, (112), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-19 13:42:06,206 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 13:42:06,207 INFO L93 Difference]: Finished difference Result 12856 states and 18264 transitions. [2024-11-19 13:42:06,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-19 13:42:06,207 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.0) internal successors, (112), 7 states have internal predecessors, (112), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 133 [2024-11-19 13:42:06,207 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 13:42:06,222 INFO L225 Difference]: With dead ends: 12856 [2024-11-19 13:42:06,223 INFO L226 Difference]: Without dead ends: 6547 [2024-11-19 13:42:06,235 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-19 13:42:06,236 INFO L432 NwaCegarLoop]: 659 mSDtfsCounter, 14 mSDsluCounter, 2654 mSDsCounter, 0 mSdLazyCounter, 762 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 3313 SdHoareTripleChecker+Invalid, 763 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 762 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-19 13:42:06,236 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 3313 Invalid, 763 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 762 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-19 13:42:06,241 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6547 states. [2024-11-19 13:42:06,473 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6547 to 6495. [2024-11-19 13:42:06,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6495 states, 6281 states have (on average 1.4118770896354085) internal successors, (8868), 6304 states have internal predecessors, (8868), 157 states have call successors, (157), 50 states have call predecessors, (157), 44 states have return successors, (192), 140 states have call predecessors, (192), 157 states have call successors, (192) [2024-11-19 13:42:06,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6495 states to 6495 states and 9217 transitions. [2024-11-19 13:42:06,499 INFO L78 Accepts]: Start accepts. Automaton has 6495 states and 9217 transitions. Word has length 133 [2024-11-19 13:42:06,499 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 13:42:06,500 INFO L471 AbstractCegarLoop]: Abstraction has 6495 states and 9217 transitions. [2024-11-19 13:42:06,500 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.0) internal successors, (112), 7 states have internal predecessors, (112), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-19 13:42:06,500 INFO L276 IsEmpty]: Start isEmpty. Operand 6495 states and 9217 transitions. [2024-11-19 13:42:06,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2024-11-19 13:42:06,502 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 13:42:06,502 INFO L215 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 13:42:06,502 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-19 13:42:06,502 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-19 13:42:06,503 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 13:42:06,503 INFO L85 PathProgramCache]: Analyzing trace with hash 219360999, now seen corresponding path program 1 times [2024-11-19 13:42:06,503 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 13:42:06,503 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1082678854] [2024-11-19 13:42:06,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 13:42:06,504 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 13:42:06,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 13:42:07,066 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-19 13:42:07,067 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 13:42:07,067 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1082678854] [2024-11-19 13:42:07,067 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1082678854] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 13:42:07,067 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 13:42:07,067 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-19 13:42:07,067 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [601275942] [2024-11-19 13:42:07,067 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 13:42:07,068 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-19 13:42:07,068 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 13:42:07,068 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-19 13:42:07,069 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-19 13:42:07,069 INFO L87 Difference]: Start difference. First operand 6495 states and 9217 transitions. Second operand has 9 states, 9 states have (on average 12.555555555555555) internal successors, (113), 9 states have internal predecessors, (113), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-19 13:42:07,919 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 13:42:07,920 INFO L93 Difference]: Finished difference Result 13143 states and 18667 transitions. [2024-11-19 13:42:07,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-19 13:42:07,920 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.555555555555555) internal successors, (113), 9 states have internal predecessors, (113), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 134 [2024-11-19 13:42:07,920 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 13:42:07,935 INFO L225 Difference]: With dead ends: 13143 [2024-11-19 13:42:07,935 INFO L226 Difference]: Without dead ends: 6781 [2024-11-19 13:42:07,945 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2024-11-19 13:42:07,945 INFO L432 NwaCegarLoop]: 654 mSDtfsCounter, 36 mSDsluCounter, 3836 mSDsCounter, 0 mSdLazyCounter, 952 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 4490 SdHoareTripleChecker+Invalid, 955 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 952 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-19 13:42:07,946 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 4490 Invalid, 955 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 952 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-19 13:42:07,953 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6781 states. [2024-11-19 13:42:08,089 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6781 to 6651. [2024-11-19 13:42:08,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6651 states, 6437 states have (on average 1.4119931645176325) internal successors, (9089), 6460 states have internal predecessors, (9089), 157 states have call successors, (157), 50 states have call predecessors, (157), 44 states have return successors, (192), 140 states have call predecessors, (192), 157 states have call successors, (192) [2024-11-19 13:42:08,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6651 states to 6651 states and 9438 transitions. [2024-11-19 13:42:08,110 INFO L78 Accepts]: Start accepts. Automaton has 6651 states and 9438 transitions. Word has length 134 [2024-11-19 13:42:08,110 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 13:42:08,110 INFO L471 AbstractCegarLoop]: Abstraction has 6651 states and 9438 transitions. [2024-11-19 13:42:08,111 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.555555555555555) internal successors, (113), 9 states have internal predecessors, (113), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-19 13:42:08,111 INFO L276 IsEmpty]: Start isEmpty. Operand 6651 states and 9438 transitions. [2024-11-19 13:42:08,112 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2024-11-19 13:42:08,112 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 13:42:08,112 INFO L215 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 13:42:08,113 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-19 13:42:08,113 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-19 13:42:08,113 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 13:42:08,113 INFO L85 PathProgramCache]: Analyzing trace with hash 1436897024, now seen corresponding path program 1 times [2024-11-19 13:42:08,113 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 13:42:08,114 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [318670069] [2024-11-19 13:42:08,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 13:42:08,114 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 13:42:08,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 13:42:08,485 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-19 13:42:08,486 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 13:42:08,486 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [318670069] [2024-11-19 13:42:08,486 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [318670069] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 13:42:08,486 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2104083463] [2024-11-19 13:42:08,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 13:42:08,486 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 13:42:08,486 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 13:42:08,488 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 13:42:08,492 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-19 13:42:08,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 13:42:08,925 INFO L255 TraceCheckSpWp]: Trace formula consists of 807 conjuncts, 31 conjuncts are in the unsatisfiable core [2024-11-19 13:42:08,931 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 13:42:08,938 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-11-19 13:42:08,961 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-11-19 13:42:08,980 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2024-11-19 13:42:09,614 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-19 13:42:09,614 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 13:42:09,614 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2104083463] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 13:42:09,614 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-19 13:42:09,615 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [5] total 14 [2024-11-19 13:42:09,615 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [736418154] [2024-11-19 13:42:09,615 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 13:42:09,615 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-19 13:42:09,615 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 13:42:09,616 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-19 13:42:09,616 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2024-11-19 13:42:09,616 INFO L87 Difference]: Start difference. First operand 6651 states and 9438 transitions. Second operand has 11 states, 11 states have (on average 10.272727272727273) internal successors, (113), 11 states have internal predecessors, (113), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-19 13:42:11,431 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 13:42:11,432 INFO L93 Difference]: Finished difference Result 15264 states and 21721 transitions. [2024-11-19 13:42:11,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-19 13:42:11,432 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 10.272727272727273) internal successors, (113), 11 states have internal predecessors, (113), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 134 [2024-11-19 13:42:11,433 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 13:42:11,454 INFO L225 Difference]: With dead ends: 15264 [2024-11-19 13:42:11,454 INFO L226 Difference]: Without dead ends: 8745 [2024-11-19 13:42:11,466 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 146 GetRequests, 125 SyntacticMatches, 1 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=101, Invalid=361, Unknown=0, NotChecked=0, Total=462 [2024-11-19 13:42:11,467 INFO L432 NwaCegarLoop]: 653 mSDtfsCounter, 878 mSDsluCounter, 3585 mSDsCounter, 0 mSdLazyCounter, 1277 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 890 SdHoareTripleChecker+Valid, 4238 SdHoareTripleChecker+Invalid, 1284 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 1277 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-19 13:42:11,467 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [890 Valid, 4238 Invalid, 1284 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 1277 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-19 13:42:11,473 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8745 states. [2024-11-19 13:42:11,716 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8745 to 6639. [2024-11-19 13:42:11,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6639 states, 6425 states have (on average 1.411828793774319) internal successors, (9071), 6448 states have internal predecessors, (9071), 157 states have call successors, (157), 50 states have call predecessors, (157), 44 states have return successors, (192), 140 states have call predecessors, (192), 157 states have call successors, (192) [2024-11-19 13:42:11,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6639 states to 6639 states and 9420 transitions. [2024-11-19 13:42:11,737 INFO L78 Accepts]: Start accepts. Automaton has 6639 states and 9420 transitions. Word has length 134 [2024-11-19 13:42:11,737 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 13:42:11,737 INFO L471 AbstractCegarLoop]: Abstraction has 6639 states and 9420 transitions. [2024-11-19 13:42:11,737 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 10.272727272727273) internal successors, (113), 11 states have internal predecessors, (113), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-19 13:42:11,738 INFO L276 IsEmpty]: Start isEmpty. Operand 6639 states and 9420 transitions. [2024-11-19 13:42:11,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2024-11-19 13:42:11,739 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 13:42:11,739 INFO L215 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 13:42:11,761 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-11-19 13:42:11,940 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2024-11-19 13:42:11,940 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-19 13:42:11,941 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 13:42:11,941 INFO L85 PathProgramCache]: Analyzing trace with hash 786605260, now seen corresponding path program 1 times [2024-11-19 13:42:11,941 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 13:42:11,941 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [851431656] [2024-11-19 13:42:11,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 13:42:11,941 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 13:42:12,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 13:42:12,307 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-19 13:42:12,308 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 13:42:12,308 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [851431656] [2024-11-19 13:42:12,308 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [851431656] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 13:42:12,308 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 13:42:12,308 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-19 13:42:12,308 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [115433538] [2024-11-19 13:42:12,308 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 13:42:12,309 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-19 13:42:12,309 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 13:42:12,309 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-19 13:42:12,310 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-19 13:42:12,310 INFO L87 Difference]: Start difference. First operand 6639 states and 9420 transitions. Second operand has 9 states, 9 states have (on average 12.777777777777779) internal successors, (115), 9 states have internal predecessors, (115), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-19 13:42:12,942 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 13:42:12,942 INFO L93 Difference]: Finished difference Result 13394 states and 19001 transitions. [2024-11-19 13:42:12,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-19 13:42:12,943 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.777777777777779) internal successors, (115), 9 states have internal predecessors, (115), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 136 [2024-11-19 13:42:12,943 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 13:42:12,960 INFO L225 Difference]: With dead ends: 13394 [2024-11-19 13:42:12,960 INFO L226 Difference]: Without dead ends: 6886 [2024-11-19 13:42:12,971 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-19 13:42:12,972 INFO L432 NwaCegarLoop]: 654 mSDtfsCounter, 22 mSDsluCounter, 2805 mSDsCounter, 0 mSdLazyCounter, 678 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 3459 SdHoareTripleChecker+Invalid, 680 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 678 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-19 13:42:12,972 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 3459 Invalid, 680 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 678 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-19 13:42:12,978 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6886 states. [2024-11-19 13:42:13,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6886 to 6721. [2024-11-19 13:42:13,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6721 states, 6507 states have (on average 1.4107883817427387) internal successors, (9180), 6530 states have internal predecessors, (9180), 157 states have call successors, (157), 50 states have call predecessors, (157), 44 states have return successors, (192), 140 states have call predecessors, (192), 157 states have call successors, (192) [2024-11-19 13:42:13,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6721 states to 6721 states and 9529 transitions. [2024-11-19 13:42:13,239 INFO L78 Accepts]: Start accepts. Automaton has 6721 states and 9529 transitions. Word has length 136 [2024-11-19 13:42:13,239 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 13:42:13,239 INFO L471 AbstractCegarLoop]: Abstraction has 6721 states and 9529 transitions. [2024-11-19 13:42:13,240 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.777777777777779) internal successors, (115), 9 states have internal predecessors, (115), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-19 13:42:13,240 INFO L276 IsEmpty]: Start isEmpty. Operand 6721 states and 9529 transitions. [2024-11-19 13:42:13,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2024-11-19 13:42:13,242 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 13:42:13,242 INFO L215 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 13:42:13,242 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-19 13:42:13,242 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-19 13:42:13,243 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 13:42:13,243 INFO L85 PathProgramCache]: Analyzing trace with hash 1418064185, now seen corresponding path program 1 times [2024-11-19 13:42:13,243 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 13:42:13,243 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1028929801] [2024-11-19 13:42:13,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 13:42:13,244 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 13:42:13,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 13:42:13,839 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-19 13:42:13,839 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 13:42:13,839 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1028929801] [2024-11-19 13:42:13,840 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1028929801] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 13:42:13,840 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1573934921] [2024-11-19 13:42:13,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 13:42:13,840 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 13:42:13,840 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 13:42:13,842 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 13:42:13,844 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-19 13:42:14,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 13:42:14,347 INFO L255 TraceCheckSpWp]: Trace formula consists of 807 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-19 13:42:14,350 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 13:42:14,428 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-19 13:42:14,428 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 13:42:14,429 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1573934921] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 13:42:14,429 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-19 13:42:14,429 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [5] total 10 [2024-11-19 13:42:14,429 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1568621280] [2024-11-19 13:42:14,429 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 13:42:14,430 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-19 13:42:14,430 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 13:42:14,430 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-19 13:42:14,431 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-11-19 13:42:14,431 INFO L87 Difference]: Start difference. First operand 6721 states and 9529 transitions. Second operand has 7 states, 7 states have (on average 16.571428571428573) internal successors, (116), 7 states have internal predecessors, (116), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-19 13:42:14,947 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 13:42:14,947 INFO L93 Difference]: Finished difference Result 13471 states and 19122 transitions. [2024-11-19 13:42:14,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-19 13:42:14,948 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.571428571428573) internal successors, (116), 7 states have internal predecessors, (116), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 137 [2024-11-19 13:42:14,948 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 13:42:14,967 INFO L225 Difference]: With dead ends: 13471 [2024-11-19 13:42:14,967 INFO L226 Difference]: Without dead ends: 6903 [2024-11-19 13:42:14,978 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 143 GetRequests, 133 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2024-11-19 13:42:14,979 INFO L432 NwaCegarLoop]: 650 mSDtfsCounter, 40 mSDsluCounter, 2750 mSDsCounter, 0 mSdLazyCounter, 662 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 3400 SdHoareTripleChecker+Invalid, 666 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 662 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-19 13:42:14,980 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 3400 Invalid, 666 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 662 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-19 13:42:14,985 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6903 states. [2024-11-19 13:42:15,127 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6903 to 6812. [2024-11-19 13:42:15,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6812 states, 6598 states have (on average 1.4110336465595634) internal successors, (9310), 6621 states have internal predecessors, (9310), 157 states have call successors, (157), 50 states have call predecessors, (157), 44 states have return successors, (192), 140 states have call predecessors, (192), 157 states have call successors, (192) [2024-11-19 13:42:15,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6812 states to 6812 states and 9659 transitions. [2024-11-19 13:42:15,149 INFO L78 Accepts]: Start accepts. Automaton has 6812 states and 9659 transitions. Word has length 137 [2024-11-19 13:42:15,150 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 13:42:15,150 INFO L471 AbstractCegarLoop]: Abstraction has 6812 states and 9659 transitions. [2024-11-19 13:42:15,150 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.571428571428573) internal successors, (116), 7 states have internal predecessors, (116), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-19 13:42:15,151 INFO L276 IsEmpty]: Start isEmpty. Operand 6812 states and 9659 transitions. [2024-11-19 13:42:15,153 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2024-11-19 13:42:15,153 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 13:42:15,153 INFO L215 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 13:42:15,173 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-11-19 13:42:15,353 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 13:42:15,354 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-19 13:42:15,354 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 13:42:15,355 INFO L85 PathProgramCache]: Analyzing trace with hash -1659367086, now seen corresponding path program 1 times [2024-11-19 13:42:15,355 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 13:42:15,355 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1285843522] [2024-11-19 13:42:15,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 13:42:15,355 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 13:42:15,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 13:42:15,804 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-19 13:42:15,805 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 13:42:15,805 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1285843522] [2024-11-19 13:42:15,805 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1285843522] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 13:42:15,805 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1303652014] [2024-11-19 13:42:15,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 13:42:15,805 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 13:42:15,805 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 13:42:15,807 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 13:42:15,809 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-19 13:42:16,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 13:42:16,273 INFO L255 TraceCheckSpWp]: Trace formula consists of 807 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-11-19 13:42:16,276 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 13:42:16,349 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 13:42:16,349 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 13:42:16,349 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1303652014] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 13:42:16,349 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-19 13:42:16,350 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [5] total 11 [2024-11-19 13:42:16,350 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [435166552] [2024-11-19 13:42:16,350 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 13:42:16,350 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-19 13:42:16,350 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 13:42:16,351 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-19 13:42:16,351 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2024-11-19 13:42:16,351 INFO L87 Difference]: Start difference. First operand 6812 states and 9659 transitions. Second operand has 9 states, 9 states have (on average 14.11111111111111) internal successors, (127), 9 states have internal predecessors, (127), 3 states have call successors, (5), 2 states have call predecessors, (5), 4 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2024-11-19 13:42:16,543 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 13:42:16,543 INFO L93 Difference]: Finished difference Result 10316 states and 14590 transitions. [2024-11-19 13:42:16,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-19 13:42:16,544 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 14.11111111111111) internal successors, (127), 9 states have internal predecessors, (127), 3 states have call successors, (5), 2 states have call predecessors, (5), 4 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) Word has length 137 [2024-11-19 13:42:16,545 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 13:42:16,556 INFO L225 Difference]: With dead ends: 10316 [2024-11-19 13:42:16,557 INFO L226 Difference]: Without dead ends: 3687 [2024-11-19 13:42:16,566 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 143 GetRequests, 132 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2024-11-19 13:42:16,567 INFO L432 NwaCegarLoop]: 663 mSDtfsCounter, 13 mSDsluCounter, 4603 mSDsCounter, 0 mSdLazyCounter, 129 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 5266 SdHoareTripleChecker+Invalid, 135 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 129 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-19 13:42:16,567 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 5266 Invalid, 135 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 129 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-19 13:42:16,570 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3687 states. [2024-11-19 13:42:16,666 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3687 to 3685. [2024-11-19 13:42:16,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3685 states, 3547 states have (on average 1.4011840992387934) internal successors, (4970), 3563 states have internal predecessors, (4970), 86 states have call successors, (86), 42 states have call predecessors, (86), 39 states have return successors, (97), 79 states have call predecessors, (97), 86 states have call successors, (97) [2024-11-19 13:42:16,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3685 states to 3685 states and 5153 transitions. [2024-11-19 13:42:16,679 INFO L78 Accepts]: Start accepts. Automaton has 3685 states and 5153 transitions. Word has length 137 [2024-11-19 13:42:16,679 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 13:42:16,679 INFO L471 AbstractCegarLoop]: Abstraction has 3685 states and 5153 transitions. [2024-11-19 13:42:16,679 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 14.11111111111111) internal successors, (127), 9 states have internal predecessors, (127), 3 states have call successors, (5), 2 states have call predecessors, (5), 4 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2024-11-19 13:42:16,680 INFO L276 IsEmpty]: Start isEmpty. Operand 3685 states and 5153 transitions. [2024-11-19 13:42:16,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2024-11-19 13:42:16,681 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 13:42:16,681 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 13:42:16,704 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-11-19 13:42:16,882 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 13:42:16,883 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-19 13:42:16,883 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 13:42:16,883 INFO L85 PathProgramCache]: Analyzing trace with hash -109109404, now seen corresponding path program 1 times [2024-11-19 13:42:16,884 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 13:42:16,884 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [150870750] [2024-11-19 13:42:16,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 13:42:16,884 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 13:42:17,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 13:42:17,355 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 6 proven. 10 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-11-19 13:42:17,355 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 13:42:17,355 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [150870750] [2024-11-19 13:42:17,355 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [150870750] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 13:42:17,355 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [926788354] [2024-11-19 13:42:17,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 13:42:17,356 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 13:42:17,356 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 13:42:17,357 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 13:42:17,358 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-11-19 13:42:17,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 13:42:17,895 INFO L255 TraceCheckSpWp]: Trace formula consists of 837 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-11-19 13:42:17,898 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 13:42:18,009 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 23 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-19 13:42:18,010 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 13:42:18,167 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 6 proven. 10 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-11-19 13:42:18,167 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [926788354] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 13:42:18,167 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 13:42:18,167 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 10, 6] total 17 [2024-11-19 13:42:18,168 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [223983873] [2024-11-19 13:42:18,168 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 13:42:18,169 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-11-19 13:42:18,169 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 13:42:18,170 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-11-19 13:42:18,170 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=220, Unknown=0, NotChecked=0, Total=272 [2024-11-19 13:42:18,170 INFO L87 Difference]: Start difference. First operand 3685 states and 5153 transitions. Second operand has 17 states, 17 states have (on average 9.294117647058824) internal successors, (158), 17 states have internal predecessors, (158), 3 states have call successors, (8), 2 states have call predecessors, (8), 7 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2024-11-19 13:42:18,655 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 13:42:18,656 INFO L93 Difference]: Finished difference Result 7240 states and 10141 transitions. [2024-11-19 13:42:18,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-19 13:42:18,656 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 9.294117647058824) internal successors, (158), 17 states have internal predecessors, (158), 3 states have call successors, (8), 2 states have call predecessors, (8), 7 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 139 [2024-11-19 13:42:18,657 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 13:42:18,667 INFO L225 Difference]: With dead ends: 7240 [2024-11-19 13:42:18,667 INFO L226 Difference]: Without dead ends: 3747 [2024-11-19 13:42:18,675 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 292 GetRequests, 269 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=114, Invalid=486, Unknown=0, NotChecked=0, Total=600 [2024-11-19 13:42:18,675 INFO L432 NwaCegarLoop]: 663 mSDtfsCounter, 22 mSDsluCounter, 7248 mSDsCounter, 0 mSdLazyCounter, 304 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 7911 SdHoareTripleChecker+Invalid, 313 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 304 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-19 13:42:18,676 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 7911 Invalid, 313 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 304 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-19 13:42:18,679 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3747 states. [2024-11-19 13:42:18,768 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3747 to 3725. [2024-11-19 13:42:18,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3725 states, 3586 states have (on average 1.401282766313441) internal successors, (5025), 3599 states have internal predecessors, (5025), 86 states have call successors, (86), 46 states have call predecessors, (86), 40 states have return successors, (93), 79 states have call predecessors, (93), 86 states have call successors, (93) [2024-11-19 13:42:18,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3725 states to 3725 states and 5204 transitions. [2024-11-19 13:42:18,782 INFO L78 Accepts]: Start accepts. Automaton has 3725 states and 5204 transitions. Word has length 139 [2024-11-19 13:42:18,783 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 13:42:18,783 INFO L471 AbstractCegarLoop]: Abstraction has 3725 states and 5204 transitions. [2024-11-19 13:42:18,783 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 9.294117647058824) internal successors, (158), 17 states have internal predecessors, (158), 3 states have call successors, (8), 2 states have call predecessors, (8), 7 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2024-11-19 13:42:18,783 INFO L276 IsEmpty]: Start isEmpty. Operand 3725 states and 5204 transitions. [2024-11-19 13:42:18,784 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2024-11-19 13:42:18,785 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 13:42:18,785 INFO L215 NwaCegarLoop]: trace histogram [6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 13:42:18,806 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2024-11-19 13:42:18,985 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2024-11-19 13:42:18,986 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-19 13:42:18,987 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 13:42:18,987 INFO L85 PathProgramCache]: Analyzing trace with hash -544423374, now seen corresponding path program 2 times [2024-11-19 13:42:18,987 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 13:42:18,987 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1057484072] [2024-11-19 13:42:18,987 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-19 13:42:18,988 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 13:42:19,218 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-19 13:42:19,219 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 13:42:19,624 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 6 proven. 30 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-19 13:42:19,625 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 13:42:19,625 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1057484072] [2024-11-19 13:42:19,625 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1057484072] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 13:42:19,625 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [437656417] [2024-11-19 13:42:19,625 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-19 13:42:19,626 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 13:42:19,626 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 13:42:19,627 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 13:42:19,629 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-11-19 13:42:20,040 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-19 13:42:20,040 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 13:42:20,042 INFO L255 TraceCheckSpWp]: Trace formula consists of 120 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-19 13:42:20,045 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 13:42:20,055 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2024-11-19 13:42:20,069 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2024-11-19 13:42:20,069 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 13:42:20,069 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [437656417] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 13:42:20,069 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-19 13:42:20,069 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [9] total 10 [2024-11-19 13:42:20,069 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1370718762] [2024-11-19 13:42:20,069 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 13:42:20,070 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 13:42:20,070 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 13:42:20,071 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 13:42:20,071 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2024-11-19 13:42:20,071 INFO L87 Difference]: Start difference. First operand 3725 states and 5204 transitions. Second operand has 3 states, 2 states have (on average 56.5) internal successors, (113), 3 states have internal predecessors, (113), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-19 13:42:20,146 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 13:42:20,147 INFO L93 Difference]: Finished difference Result 3725 states and 5204 transitions. [2024-11-19 13:42:20,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 13:42:20,148 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 56.5) internal successors, (113), 3 states have internal predecessors, (113), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 143 [2024-11-19 13:42:20,148 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 13:42:20,157 INFO L225 Difference]: With dead ends: 3725 [2024-11-19 13:42:20,158 INFO L226 Difference]: Without dead ends: 3724 [2024-11-19 13:42:20,160 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 151 GetRequests, 143 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2024-11-19 13:42:20,161 INFO L432 NwaCegarLoop]: 671 mSDtfsCounter, 1 mSDsluCounter, 669 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 1340 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 13:42:20,161 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 1340 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 13:42:20,164 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3724 states. [2024-11-19 13:42:20,249 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3724 to 3724. [2024-11-19 13:42:20,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3724 states, 3586 states have (on average 1.3996095928611265) internal successors, (5019), 3598 states have internal predecessors, (5019), 86 states have call successors, (86), 46 states have call predecessors, (86), 40 states have return successors, (93), 79 states have call predecessors, (93), 86 states have call successors, (93) [2024-11-19 13:42:20,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3724 states to 3724 states and 5198 transitions. [2024-11-19 13:42:20,262 INFO L78 Accepts]: Start accepts. Automaton has 3724 states and 5198 transitions. Word has length 143 [2024-11-19 13:42:20,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 13:42:20,263 INFO L471 AbstractCegarLoop]: Abstraction has 3724 states and 5198 transitions. [2024-11-19 13:42:20,263 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 56.5) internal successors, (113), 3 states have internal predecessors, (113), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-19 13:42:20,263 INFO L276 IsEmpty]: Start isEmpty. Operand 3724 states and 5198 transitions. [2024-11-19 13:42:20,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2024-11-19 13:42:20,264 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 13:42:20,265 INFO L215 NwaCegarLoop]: trace histogram [6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 13:42:20,282 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2024-11-19 13:42:20,465 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2024-11-19 13:42:20,466 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-19 13:42:20,466 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 13:42:20,466 INFO L85 PathProgramCache]: Analyzing trace with hash 302744693, now seen corresponding path program 1 times [2024-11-19 13:42:20,466 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 13:42:20,466 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1809387900] [2024-11-19 13:42:20,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 13:42:20,467 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 13:42:20,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 13:42:21,026 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 7 proven. 30 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-19 13:42:21,026 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 13:42:21,026 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1809387900] [2024-11-19 13:42:21,027 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1809387900] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 13:42:21,027 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1733311134] [2024-11-19 13:42:21,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 13:42:21,027 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 13:42:21,027 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 13:42:21,029 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 13:42:21,030 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-11-19 13:42:21,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 13:42:21,573 INFO L255 TraceCheckSpWp]: Trace formula consists of 898 conjuncts, 29 conjuncts are in the unsatisfiable core [2024-11-19 13:42:21,577 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 13:42:21,771 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 35 proven. 10 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-19 13:42:21,771 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 13:42:22,053 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 7 proven. 30 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-19 13:42:22,053 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1733311134] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 13:42:22,053 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 13:42:22,053 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 14, 9] total 27 [2024-11-19 13:42:22,053 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2142008444] [2024-11-19 13:42:22,054 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 13:42:22,054 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2024-11-19 13:42:22,054 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 13:42:22,055 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2024-11-19 13:42:22,055 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=126, Invalid=576, Unknown=0, NotChecked=0, Total=702 [2024-11-19 13:42:22,055 INFO L87 Difference]: Start difference. First operand 3724 states and 5198 transitions. Second operand has 27 states, 27 states have (on average 6.296296296296297) internal successors, (170), 27 states have internal predecessors, (170), 3 states have call successors, (8), 2 states have call predecessors, (8), 7 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2024-11-19 13:42:22,986 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 13:42:22,986 INFO L93 Difference]: Finished difference Result 6903 states and 9619 transitions. [2024-11-19 13:42:22,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2024-11-19 13:42:22,987 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 27 states have (on average 6.296296296296297) internal successors, (170), 27 states have internal predecessors, (170), 3 states have call successors, (8), 2 states have call predecessors, (8), 7 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 144 [2024-11-19 13:42:22,988 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 13:42:22,997 INFO L225 Difference]: With dead ends: 6903 [2024-11-19 13:42:22,997 INFO L226 Difference]: Without dead ends: 3205 [2024-11-19 13:42:23,003 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 314 GetRequests, 272 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 182 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=380, Invalid=1512, Unknown=0, NotChecked=0, Total=1892 [2024-11-19 13:42:23,004 INFO L432 NwaCegarLoop]: 573 mSDtfsCounter, 51 mSDsluCounter, 6828 mSDsCounter, 0 mSdLazyCounter, 676 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 7401 SdHoareTripleChecker+Invalid, 694 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 676 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-19 13:42:23,004 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [51 Valid, 7401 Invalid, 694 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 676 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-19 13:42:23,007 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3205 states. [2024-11-19 13:42:23,094 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3205 to 3174. [2024-11-19 13:42:23,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3174 states, 3036 states have (on average 1.3784584980237153) internal successors, (4185), 3048 states have internal predecessors, (4185), 86 states have call successors, (86), 46 states have call predecessors, (86), 40 states have return successors, (93), 79 states have call predecessors, (93), 86 states have call successors, (93) [2024-11-19 13:42:23,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3174 states to 3174 states and 4364 transitions. [2024-11-19 13:42:23,107 INFO L78 Accepts]: Start accepts. Automaton has 3174 states and 4364 transitions. Word has length 144 [2024-11-19 13:42:23,107 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 13:42:23,107 INFO L471 AbstractCegarLoop]: Abstraction has 3174 states and 4364 transitions. [2024-11-19 13:42:23,107 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 27 states have (on average 6.296296296296297) internal successors, (170), 27 states have internal predecessors, (170), 3 states have call successors, (8), 2 states have call predecessors, (8), 7 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2024-11-19 13:42:23,108 INFO L276 IsEmpty]: Start isEmpty. Operand 3174 states and 4364 transitions. [2024-11-19 13:42:23,109 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2024-11-19 13:42:23,109 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 13:42:23,109 INFO L215 NwaCegarLoop]: trace histogram [15, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 13:42:23,130 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2024-11-19 13:42:23,310 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2024-11-19 13:42:23,310 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-19 13:42:23,310 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 13:42:23,310 INFO L85 PathProgramCache]: Analyzing trace with hash 810593628, now seen corresponding path program 2 times [2024-11-19 13:42:23,311 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 13:42:23,311 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [42116937] [2024-11-19 13:42:23,311 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-19 13:42:23,311 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 13:42:23,564 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-19 13:42:23,564 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 13:42:24,276 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 7 proven. 126 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2024-11-19 13:42:24,276 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 13:42:24,277 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [42116937] [2024-11-19 13:42:24,277 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [42116937] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 13:42:24,277 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2013130418] [2024-11-19 13:42:24,277 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-19 13:42:24,277 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 13:42:24,277 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 13:42:24,279 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 13:42:24,281 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-11-19 13:42:24,900 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-19 13:42:24,901 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 13:42:24,906 INFO L255 TraceCheckSpWp]: Trace formula consists of 1033 conjuncts, 38 conjuncts are in the unsatisfiable core [2024-11-19 13:42:24,910 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 13:42:25,341 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 86 proven. 55 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-11-19 13:42:25,341 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 13:42:26,032 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 7 proven. 126 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2024-11-19 13:42:26,033 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2013130418] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 13:42:26,033 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 13:42:26,033 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 19, 15] total 44 [2024-11-19 13:42:26,033 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [788642916] [2024-11-19 13:42:26,033 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 13:42:26,034 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 44 states [2024-11-19 13:42:26,034 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 13:42:26,035 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 44 interpolants. [2024-11-19 13:42:26,035 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=376, Invalid=1516, Unknown=0, NotChecked=0, Total=1892 [2024-11-19 13:42:26,036 INFO L87 Difference]: Start difference. First operand 3174 states and 4364 transitions. Second operand has 44 states, 44 states have (on average 4.2272727272727275) internal successors, (186), 44 states have internal predecessors, (186), 3 states have call successors, (8), 2 states have call predecessors, (8), 7 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2024-11-19 13:42:31,562 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 13:42:31,562 INFO L93 Difference]: Finished difference Result 6383 states and 8849 transitions. [2024-11-19 13:42:31,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2024-11-19 13:42:31,563 INFO L78 Accepts]: Start accepts. Automaton has has 44 states, 44 states have (on average 4.2272727272727275) internal successors, (186), 44 states have internal predecessors, (186), 3 states have call successors, (8), 2 states have call predecessors, (8), 7 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 153 [2024-11-19 13:42:31,564 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 13:42:31,573 INFO L225 Difference]: With dead ends: 6383 [2024-11-19 13:42:31,573 INFO L226 Difference]: Without dead ends: 3307 [2024-11-19 13:42:31,579 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 356 GetRequests, 279 SyntacticMatches, 0 SemanticMatches, 77 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 682 ImplicationChecksByTransitivity, 5.6s TimeCoverageRelationStatistics Valid=1392, Invalid=4770, Unknown=0, NotChecked=0, Total=6162 [2024-11-19 13:42:31,580 INFO L432 NwaCegarLoop]: 585 mSDtfsCounter, 31 mSDsluCounter, 11631 mSDsCounter, 0 mSdLazyCounter, 1269 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 12216 SdHoareTripleChecker+Invalid, 1290 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 1269 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-19 13:42:31,580 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 12216 Invalid, 1290 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 1269 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-19 13:42:31,583 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3307 states. [2024-11-19 13:42:31,709 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3307 to 3264. [2024-11-19 13:42:31,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3264 states, 3126 states have (on average 1.3694817658349328) internal successors, (4281), 3138 states have internal predecessors, (4281), 86 states have call successors, (86), 46 states have call predecessors, (86), 40 states have return successors, (93), 79 states have call predecessors, (93), 86 states have call successors, (93) [2024-11-19 13:42:31,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3264 states to 3264 states and 4460 transitions. [2024-11-19 13:42:31,721 INFO L78 Accepts]: Start accepts. Automaton has 3264 states and 4460 transitions. Word has length 153 [2024-11-19 13:42:31,721 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 13:42:31,721 INFO L471 AbstractCegarLoop]: Abstraction has 3264 states and 4460 transitions. [2024-11-19 13:42:31,721 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 44 states, 44 states have (on average 4.2272727272727275) internal successors, (186), 44 states have internal predecessors, (186), 3 states have call successors, (8), 2 states have call predecessors, (8), 7 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2024-11-19 13:42:31,722 INFO L276 IsEmpty]: Start isEmpty. Operand 3264 states and 4460 transitions. [2024-11-19 13:42:31,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2024-11-19 13:42:31,723 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 13:42:31,723 INFO L215 NwaCegarLoop]: trace histogram [33, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 13:42:31,746 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2024-11-19 13:42:31,924 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 13:42:31,925 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-19 13:42:31,925 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 13:42:31,925 INFO L85 PathProgramCache]: Analyzing trace with hash 1883428860, now seen corresponding path program 3 times [2024-11-19 13:42:31,926 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 13:42:31,926 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1782324990] [2024-11-19 13:42:31,926 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-19 13:42:31,926 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 13:42:32,019 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-11-19 13:42:32,019 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 13:42:32,260 INFO L134 CoverageAnalysis]: Checked inductivity of 615 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 608 trivial. 0 not checked. [2024-11-19 13:42:32,262 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 13:42:32,262 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1782324990] [2024-11-19 13:42:32,262 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1782324990] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 13:42:32,262 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 13:42:32,262 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-19 13:42:32,262 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [264088749] [2024-11-19 13:42:32,262 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 13:42:32,263 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-19 13:42:32,263 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 13:42:32,264 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-19 13:42:32,264 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-19 13:42:32,264 INFO L87 Difference]: Start difference. First operand 3264 states and 4460 transitions. Second operand has 7 states, 7 states have (on average 16.857142857142858) internal successors, (118), 7 states have internal predecessors, (118), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-19 13:42:32,651 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 13:42:32,651 INFO L93 Difference]: Finished difference Result 6499 states and 8903 transitions. [2024-11-19 13:42:32,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-19 13:42:32,652 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.857142857142858) internal successors, (118), 7 states have internal predecessors, (118), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 171 [2024-11-19 13:42:32,652 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 13:42:32,662 INFO L225 Difference]: With dead ends: 6499 [2024-11-19 13:42:32,662 INFO L226 Difference]: Without dead ends: 3303 [2024-11-19 13:42:32,667 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-19 13:42:32,667 INFO L432 NwaCegarLoop]: 582 mSDtfsCounter, 8 mSDsluCounter, 2549 mSDsCounter, 0 mSdLazyCounter, 426 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 3131 SdHoareTripleChecker+Invalid, 427 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 426 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-19 13:42:32,667 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 3131 Invalid, 427 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 426 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-19 13:42:32,670 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3303 states. [2024-11-19 13:42:32,829 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3303 to 3303. [2024-11-19 13:42:32,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3303 states, 3165 states have (on average 1.3649289099526067) internal successors, (4320), 3177 states have internal predecessors, (4320), 86 states have call successors, (86), 46 states have call predecessors, (86), 40 states have return successors, (93), 79 states have call predecessors, (93), 86 states have call successors, (93) [2024-11-19 13:42:32,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3303 states to 3303 states and 4499 transitions. [2024-11-19 13:42:32,840 INFO L78 Accepts]: Start accepts. Automaton has 3303 states and 4499 transitions. Word has length 171 [2024-11-19 13:42:32,841 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 13:42:32,841 INFO L471 AbstractCegarLoop]: Abstraction has 3303 states and 4499 transitions. [2024-11-19 13:42:32,841 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.857142857142858) internal successors, (118), 7 states have internal predecessors, (118), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-19 13:42:32,841 INFO L276 IsEmpty]: Start isEmpty. Operand 3303 states and 4499 transitions. [2024-11-19 13:42:32,843 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2024-11-19 13:42:32,843 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 13:42:32,843 INFO L215 NwaCegarLoop]: trace histogram [33, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 13:42:32,843 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-11-19 13:42:32,845 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-19 13:42:32,846 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 13:42:32,846 INFO L85 PathProgramCache]: Analyzing trace with hash 352369194, now seen corresponding path program 1 times [2024-11-19 13:42:32,846 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 13:42:32,847 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1098545372] [2024-11-19 13:42:32,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 13:42:32,847 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 13:42:32,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 13:42:33,313 INFO L134 CoverageAnalysis]: Checked inductivity of 615 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 608 trivial. 0 not checked. [2024-11-19 13:42:33,313 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 13:42:33,313 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1098545372] [2024-11-19 13:42:33,314 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1098545372] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 13:42:33,314 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 13:42:33,314 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-19 13:42:33,314 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [69783477] [2024-11-19 13:42:33,314 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 13:42:33,314 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-19 13:42:33,315 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 13:42:33,315 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-19 13:42:33,316 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-19 13:42:33,316 INFO L87 Difference]: Start difference. First operand 3303 states and 4499 transitions. Second operand has 6 states, 6 states have (on average 19.666666666666668) internal successors, (118), 6 states have internal predecessors, (118), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-19 13:42:33,549 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 13:42:33,549 INFO L93 Difference]: Finished difference Result 6538 states and 8915 transitions. [2024-11-19 13:42:33,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-19 13:42:33,550 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 19.666666666666668) internal successors, (118), 6 states have internal predecessors, (118), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 171 [2024-11-19 13:42:33,550 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 13:42:33,559 INFO L225 Difference]: With dead ends: 6538 [2024-11-19 13:42:33,560 INFO L226 Difference]: Without dead ends: 3303 [2024-11-19 13:42:33,564 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-19 13:42:33,564 INFO L432 NwaCegarLoop]: 587 mSDtfsCounter, 8 mSDsluCounter, 1560 mSDsCounter, 0 mSdLazyCounter, 238 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 2147 SdHoareTripleChecker+Invalid, 238 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 238 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-19 13:42:33,564 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 2147 Invalid, 238 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 238 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-19 13:42:33,567 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3303 states. [2024-11-19 13:42:33,683 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3303 to 3303. [2024-11-19 13:42:33,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3303 states, 3165 states have (on average 1.3627172195892574) internal successors, (4313), 3177 states have internal predecessors, (4313), 86 states have call successors, (86), 46 states have call predecessors, (86), 40 states have return successors, (93), 79 states have call predecessors, (93), 86 states have call successors, (93) [2024-11-19 13:42:33,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3303 states to 3303 states and 4492 transitions. [2024-11-19 13:42:33,694 INFO L78 Accepts]: Start accepts. Automaton has 3303 states and 4492 transitions. Word has length 171 [2024-11-19 13:42:33,694 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 13:42:33,695 INFO L471 AbstractCegarLoop]: Abstraction has 3303 states and 4492 transitions. [2024-11-19 13:42:33,695 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 19.666666666666668) internal successors, (118), 6 states have internal predecessors, (118), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-19 13:42:33,695 INFO L276 IsEmpty]: Start isEmpty. Operand 3303 states and 4492 transitions. [2024-11-19 13:42:33,696 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2024-11-19 13:42:33,696 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 13:42:33,697 INFO L215 NwaCegarLoop]: trace histogram [33, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 13:42:33,697 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-11-19 13:42:33,697 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-19 13:42:33,697 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 13:42:33,697 INFO L85 PathProgramCache]: Analyzing trace with hash -1397017081, now seen corresponding path program 1 times [2024-11-19 13:42:33,698 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 13:42:33,698 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [692648005] [2024-11-19 13:42:33,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 13:42:33,698 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 13:42:33,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 13:42:34,410 INFO L134 CoverageAnalysis]: Checked inductivity of 615 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 608 trivial. 0 not checked. [2024-11-19 13:42:34,410 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 13:42:34,411 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [692648005] [2024-11-19 13:42:34,411 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [692648005] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 13:42:34,411 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 13:42:34,411 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-19 13:42:34,411 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2089202900] [2024-11-19 13:42:34,411 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 13:42:34,412 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-19 13:42:34,412 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 13:42:34,412 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-19 13:42:34,412 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2024-11-19 13:42:34,413 INFO L87 Difference]: Start difference. First operand 3303 states and 4492 transitions. Second operand has 10 states, 10 states have (on average 11.8) internal successors, (118), 10 states have internal predecessors, (118), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-19 13:42:34,937 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 13:42:34,937 INFO L93 Difference]: Finished difference Result 6620 states and 9023 transitions. [2024-11-19 13:42:34,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-19 13:42:34,938 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 11.8) internal successors, (118), 10 states have internal predecessors, (118), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 171 [2024-11-19 13:42:34,938 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 13:42:34,947 INFO L225 Difference]: With dead ends: 6620 [2024-11-19 13:42:34,948 INFO L226 Difference]: Without dead ends: 3390 [2024-11-19 13:42:34,952 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2024-11-19 13:42:34,952 INFO L432 NwaCegarLoop]: 589 mSDtfsCounter, 26 mSDsluCounter, 3648 mSDsCounter, 0 mSdLazyCounter, 660 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 4237 SdHoareTripleChecker+Invalid, 661 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 660 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-19 13:42:34,953 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 4237 Invalid, 661 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 660 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-19 13:42:34,955 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3390 states. [2024-11-19 13:42:35,075 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3390 to 3348. [2024-11-19 13:42:35,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3348 states, 3210 states have (on average 1.3595015576323988) internal successors, (4364), 3222 states have internal predecessors, (4364), 86 states have call successors, (86), 46 states have call predecessors, (86), 40 states have return successors, (93), 79 states have call predecessors, (93), 86 states have call successors, (93) [2024-11-19 13:42:35,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3348 states to 3348 states and 4543 transitions. [2024-11-19 13:42:35,086 INFO L78 Accepts]: Start accepts. Automaton has 3348 states and 4543 transitions. Word has length 171 [2024-11-19 13:42:35,086 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 13:42:35,087 INFO L471 AbstractCegarLoop]: Abstraction has 3348 states and 4543 transitions. [2024-11-19 13:42:35,087 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 11.8) internal successors, (118), 10 states have internal predecessors, (118), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-19 13:42:35,087 INFO L276 IsEmpty]: Start isEmpty. Operand 3348 states and 4543 transitions. [2024-11-19 13:42:35,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2024-11-19 13:42:35,088 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 13:42:35,088 INFO L215 NwaCegarLoop]: trace histogram [33, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 13:42:35,089 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-11-19 13:42:35,089 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-19 13:42:35,090 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 13:42:35,090 INFO L85 PathProgramCache]: Analyzing trace with hash -131797347, now seen corresponding path program 1 times [2024-11-19 13:42:35,090 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 13:42:35,090 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1393521427] [2024-11-19 13:42:35,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 13:42:35,090 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 13:42:35,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 13:42:37,007 INFO L134 CoverageAnalysis]: Checked inductivity of 615 backedges. 7 proven. 534 refuted. 0 times theorem prover too weak. 74 trivial. 0 not checked. [2024-11-19 13:42:37,007 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 13:42:37,008 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1393521427] [2024-11-19 13:42:37,008 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1393521427] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 13:42:37,008 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1492448696] [2024-11-19 13:42:37,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 13:42:37,008 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 13:42:37,009 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 13:42:37,010 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 13:42:37,011 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2024-11-19 13:42:39,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 13:42:39,017 INFO L255 TraceCheckSpWp]: Trace formula consists of 1301 conjuncts, 77 conjuncts are in the unsatisfiable core [2024-11-19 13:42:39,021 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 13:42:39,739 INFO L134 CoverageAnalysis]: Checked inductivity of 615 backedges. 7 proven. 535 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked. [2024-11-19 13:42:39,739 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 13:42:40,748 INFO L134 CoverageAnalysis]: Checked inductivity of 615 backedges. 288 proven. 66 refuted. 0 times theorem prover too weak. 261 trivial. 0 not checked. [2024-11-19 13:42:40,748 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1492448696] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 13:42:40,748 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 13:42:40,748 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [27, 21, 16] total 59 [2024-11-19 13:42:40,749 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [337994387] [2024-11-19 13:42:40,749 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 13:42:40,749 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 59 states [2024-11-19 13:42:40,750 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 13:42:40,750 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 59 interpolants. [2024-11-19 13:42:40,752 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=599, Invalid=2823, Unknown=0, NotChecked=0, Total=3422 [2024-11-19 13:42:40,752 INFO L87 Difference]: Start difference. First operand 3348 states and 4543 transitions. Second operand has 59 states, 59 states have (on average 3.3389830508474576) internal successors, (197), 59 states have internal predecessors, (197), 3 states have call successors, (8), 1 states have call predecessors, (8), 7 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2024-11-19 13:42:50,334 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 13:42:50,335 INFO L93 Difference]: Finished difference Result 6771 states and 9306 transitions. [2024-11-19 13:42:50,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 86 states. [2024-11-19 13:42:50,335 INFO L78 Accepts]: Start accepts. Automaton has has 59 states, 59 states have (on average 3.3389830508474576) internal successors, (197), 59 states have internal predecessors, (197), 3 states have call successors, (8), 1 states have call predecessors, (8), 7 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 172 [2024-11-19 13:42:50,335 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 13:42:50,346 INFO L225 Difference]: With dead ends: 6771 [2024-11-19 13:42:50,346 INFO L226 Difference]: Without dead ends: 3551 [2024-11-19 13:42:50,355 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 448 GetRequests, 315 SyntacticMatches, 0 SemanticMatches, 133 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3271 ImplicationChecksByTransitivity, 10.0s TimeCoverageRelationStatistics Valid=2625, Invalid=15465, Unknown=0, NotChecked=0, Total=18090 [2024-11-19 13:42:50,355 INFO L432 NwaCegarLoop]: 587 mSDtfsCounter, 79 mSDsluCounter, 11711 mSDsCounter, 0 mSdLazyCounter, 2243 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 79 SdHoareTripleChecker+Valid, 12298 SdHoareTripleChecker+Invalid, 2289 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 2243 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-19 13:42:50,356 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [79 Valid, 12298 Invalid, 2289 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 2243 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-19 13:42:50,358 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3551 states. [2024-11-19 13:42:50,514 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3551 to 3441. [2024-11-19 13:42:50,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3441 states, 3303 states have (on average 1.3533151680290645) internal successors, (4470), 3314 states have internal predecessors, (4470), 86 states have call successors, (86), 47 states have call predecessors, (86), 40 states have return successors, (93), 79 states have call predecessors, (93), 86 states have call successors, (93) [2024-11-19 13:42:50,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3441 states to 3441 states and 4649 transitions. [2024-11-19 13:42:50,527 INFO L78 Accepts]: Start accepts. Automaton has 3441 states and 4649 transitions. Word has length 172 [2024-11-19 13:42:50,528 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 13:42:50,528 INFO L471 AbstractCegarLoop]: Abstraction has 3441 states and 4649 transitions. [2024-11-19 13:42:50,528 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 59 states, 59 states have (on average 3.3389830508474576) internal successors, (197), 59 states have internal predecessors, (197), 3 states have call successors, (8), 1 states have call predecessors, (8), 7 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2024-11-19 13:42:50,528 INFO L276 IsEmpty]: Start isEmpty. Operand 3441 states and 4649 transitions. [2024-11-19 13:42:50,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2024-11-19 13:42:50,530 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 13:42:50,530 INFO L215 NwaCegarLoop]: trace histogram [58, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 13:42:50,592 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2024-11-19 13:42:50,730 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2024-11-19 13:42:50,731 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-19 13:42:50,731 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 13:42:50,732 INFO L85 PathProgramCache]: Analyzing trace with hash 417578946, now seen corresponding path program 2 times [2024-11-19 13:42:50,732 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 13:42:50,732 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [525242070] [2024-11-19 13:42:50,732 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-19 13:42:50,732 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 13:42:51,407 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-19 13:42:51,408 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 13:42:53,189 INFO L134 CoverageAnalysis]: Checked inductivity of 1790 backedges. 7 proven. 1145 refuted. 0 times theorem prover too weak. 638 trivial. 0 not checked. [2024-11-19 13:42:53,189 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 13:42:53,189 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [525242070] [2024-11-19 13:42:53,189 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [525242070] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 13:42:53,189 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1214530238] [2024-11-19 13:42:53,189 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-19 13:42:53,189 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 13:42:53,190 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 13:42:53,191 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 13:42:53,191 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2024-11-19 13:42:55,447 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-19 13:42:55,447 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 13:42:55,458 INFO L255 TraceCheckSpWp]: Trace formula consists of 1676 conjuncts, 138 conjuncts are in the unsatisfiable core [2024-11-19 13:42:55,463 INFO L278 TraceCheckSpWp]: Computing forward predicates...