./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/no-overflow.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test6-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 4a390ef5 Calling Ultimate with: /root/.sdkman/candidates/java/current/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 /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_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 4a058bd9944921e52018f99044f11f694f824f3f09daf510330544b4558ba193 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4a390ef-m [2024-10-24 23:12:36,499 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-24 23:12:36,557 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-10-24 23:12:36,561 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-24 23:12:36,561 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-24 23:12:36,583 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-24 23:12:36,586 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-24 23:12:36,586 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-24 23:12:36,587 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-24 23:12:36,588 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-24 23:12:36,588 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-24 23:12:36,589 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-24 23:12:36,589 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-24 23:12:36,591 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-24 23:12:36,591 INFO L153 SettingsManager]: * Use SBE=true [2024-10-24 23:12:36,592 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-24 23:12:36,592 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-24 23:12:36,592 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-24 23:12:36,593 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-24 23:12:36,593 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-24 23:12:36,593 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-24 23:12:36,596 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-24 23:12:36,597 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-24 23:12:36,597 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-24 23:12:36,597 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-24 23:12:36,597 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-10-24 23:12:36,597 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-24 23:12:36,598 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-24 23:12:36,598 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-24 23:12:36,598 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-24 23:12:36,598 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-24 23:12:36,598 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-24 23:12:36,598 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-24 23:12:36,599 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-24 23:12:36,599 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 23:12:36,599 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-24 23:12:36,599 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-24 23:12:36,599 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-24 23:12:36,599 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-24 23:12:36,599 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-24 23:12:36,600 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-24 23:12:36,600 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-24 23:12:36,600 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-24 23:12:36,600 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-24 23:12:36,601 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4a058bd9944921e52018f99044f11f694f824f3f09daf510330544b4558ba193 [2024-10-24 23:12:36,809 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-24 23:12:36,828 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-24 23:12:36,831 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-24 23:12:36,832 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-24 23:12:36,832 INFO L274 PluginConnector]: CDTParser initialized [2024-10-24 23:12:36,833 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test6-2.i [2024-10-24 23:12:38,176 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-24 23:12:38,431 INFO L384 CDTParser]: Found 1 translation units. [2024-10-24 23:12:38,433 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test6-2.i [2024-10-24 23:12:38,457 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/992fd65c2/18e10bdd8211495a9e8f58d4a3f632f7/FLAG0a7d8da9d [2024-10-24 23:12:38,727 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/992fd65c2/18e10bdd8211495a9e8f58d4a3f632f7 [2024-10-24 23:12:38,729 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-24 23:12:38,730 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-24 23:12:38,731 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-24 23:12:38,731 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-24 23:12:38,735 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-24 23:12:38,735 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 11:12:38" (1/1) ... [2024-10-24 23:12:38,736 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1a612dcf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:12:38, skipping insertion in model container [2024-10-24 23:12:38,736 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 11:12:38" (1/1) ... [2024-10-24 23:12:38,776 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-24 23:12:39,276 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 23:12:39,290 INFO L200 MainTranslator]: Completed pre-run [2024-10-24 23:12:39,375 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 23:12:39,423 INFO L204 MainTranslator]: Completed translation [2024-10-24 23:12:39,424 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:12:39 WrapperNode [2024-10-24 23:12:39,424 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-24 23:12:39,425 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-24 23:12:39,425 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-24 23:12:39,425 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-24 23:12:39,431 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:12:39" (1/1) ... [2024-10-24 23:12:39,466 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:12:39" (1/1) ... [2024-10-24 23:12:39,538 INFO L138 Inliner]: procedures = 282, calls = 343, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 1648 [2024-10-24 23:12:39,539 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-24 23:12:39,539 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-24 23:12:39,540 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-24 23:12:39,540 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-24 23:12:39,549 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:12:39" (1/1) ... [2024-10-24 23:12:39,549 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:12:39" (1/1) ... [2024-10-24 23:12:39,571 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:12:39" (1/1) ... [2024-10-24 23:12:39,643 INFO L175 MemorySlicer]: Split 309 memory accesses to 4 slices as follows [2, 3, 270, 34]. 87 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0, 0]. The 63 writes are split as follows [0, 2, 57, 4]. [2024-10-24 23:12:39,644 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:12:39" (1/1) ... [2024-10-24 23:12:39,644 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:12:39" (1/1) ... [2024-10-24 23:12:39,689 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:12:39" (1/1) ... [2024-10-24 23:12:39,701 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:12:39" (1/1) ... [2024-10-24 23:12:39,713 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:12:39" (1/1) ... [2024-10-24 23:12:39,720 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:12:39" (1/1) ... [2024-10-24 23:12:39,735 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-24 23:12:39,736 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-24 23:12:39,737 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-24 23:12:39,737 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-24 23:12:39,737 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:12:39" (1/1) ... [2024-10-24 23:12:39,742 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 23:12:39,751 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 23:12:39,766 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) [2024-10-24 23:12:39,768 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 [2024-10-24 23:12:39,814 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2024-10-24 23:12:39,814 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2024-10-24 23:12:39,817 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-10-24 23:12:39,817 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-10-24 23:12:39,817 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-10-24 23:12:39,817 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-10-24 23:12:39,818 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-10-24 23:12:39,818 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-10-24 23:12:39,818 INFO L130 BoogieDeclarations]: Found specification of procedure alt_bzero [2024-10-24 23:12:39,818 INFO L138 BoogieDeclarations]: Found implementation of procedure alt_bzero [2024-10-24 23:12:39,818 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-10-24 23:12:39,818 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-10-24 23:12:39,818 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-10-24 23:12:39,818 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-10-24 23:12:39,818 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-10-24 23:12:39,818 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-10-24 23:12:39,819 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-10-24 23:12:39,821 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-10-24 23:12:39,821 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-10-24 23:12:39,822 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-10-24 23:12:39,822 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-10-24 23:12:39,822 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-24 23:12:39,822 INFO L130 BoogieDeclarations]: Found specification of procedure alt_malloc [2024-10-24 23:12:39,822 INFO L138 BoogieDeclarations]: Found implementation of procedure alt_malloc [2024-10-24 23:12:39,823 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-10-24 23:12:39,823 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-10-24 23:12:39,824 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-10-24 23:12:39,824 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-10-24 23:12:39,824 INFO L130 BoogieDeclarations]: Found specification of procedure alt_free [2024-10-24 23:12:39,824 INFO L138 BoogieDeclarations]: Found implementation of procedure alt_free [2024-10-24 23:12:39,824 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-24 23:12:39,824 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-10-24 23:12:39,824 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-10-24 23:12:39,825 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-10-24 23:12:39,825 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-24 23:12:39,825 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-24 23:12:40,029 INFO L238 CfgBuilder]: Building ICFG [2024-10-24 23:12:40,031 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-24 23:12:41,256 INFO L? ?]: Removed 376 outVars from TransFormulas that were not future-live. [2024-10-24 23:12:41,257 INFO L287 CfgBuilder]: Performing block encoding [2024-10-24 23:12:41,347 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-24 23:12:41,348 INFO L314 CfgBuilder]: Removed 72 assume(true) statements. [2024-10-24 23:12:41,348 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 11:12:41 BoogieIcfgContainer [2024-10-24 23:12:41,348 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-24 23:12:41,350 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-24 23:12:41,350 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-24 23:12:41,352 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-24 23:12:41,352 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 11:12:38" (1/3) ... [2024-10-24 23:12:41,353 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ff4f539 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 11:12:41, skipping insertion in model container [2024-10-24 23:12:41,353 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:12:39" (2/3) ... [2024-10-24 23:12:41,353 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ff4f539 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 11:12:41, skipping insertion in model container [2024-10-24 23:12:41,353 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 11:12:41" (3/3) ... [2024-10-24 23:12:41,355 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_JEN_test6-2.i [2024-10-24 23:12:41,367 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-24 23:12:41,368 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 14 error locations. [2024-10-24 23:12:41,427 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-24 23:12:41,433 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;@142a937f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-24 23:12:41,433 INFO L334 AbstractCegarLoop]: Starting to check reachability of 14 error locations. [2024-10-24 23:12:41,440 INFO L276 IsEmpty]: Start isEmpty. Operand has 490 states, 451 states have (on average 1.6208425720620843) internal successors, (731), 468 states have internal predecessors, (731), 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) [2024-10-24 23:12:41,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-10-24 23:12:41,447 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 23:12:41,447 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2024-10-24 23:12:41,447 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)] === [2024-10-24 23:12:41,451 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 23:12:41,451 INFO L85 PathProgramCache]: Analyzing trace with hash 612313603, now seen corresponding path program 1 times [2024-10-24 23:12:41,458 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 23:12:41,458 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1552014895] [2024-10-24 23:12:41,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 23:12:41,459 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 23:12:41,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 23:12:41,605 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 23:12:41,606 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 23:12:41,606 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1552014895] [2024-10-24 23:12:41,606 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1552014895] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 23:12:41,607 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 23:12:41,608 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-24 23:12:41,609 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [766219361] [2024-10-24 23:12:41,609 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 23:12:41,612 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-24 23:12:41,612 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 23:12:41,629 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-24 23:12:41,630 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-24 23:12:41,633 INFO L87 Difference]: Start difference. First operand has 490 states, 451 states have (on average 1.6208425720620843) internal successors, (731), 468 states have internal predecessors, (731), 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 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 23:12:41,725 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 23:12:41,725 INFO L93 Difference]: Finished difference Result 974 states and 1548 transitions. [2024-10-24 23:12:41,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-24 23:12:41,731 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 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 6 [2024-10-24 23:12:41,731 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 23:12:41,742 INFO L225 Difference]: With dead ends: 974 [2024-10-24 23:12:41,742 INFO L226 Difference]: Without dead ends: 478 [2024-10-24 23:12:41,748 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 [2024-10-24 23:12:41,751 INFO L432 NwaCegarLoop]: 675 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 675 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-24 23:12:41,752 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 675 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 23:12:41,769 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 478 states. [2024-10-24 23:12:41,795 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 478 to 478. [2024-10-24 23:12:41,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 478 states, 445 states have (on average 1.447191011235955) internal successors, (644), 459 states have internal predecessors, (644), 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) [2024-10-24 23:12:41,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 478 states to 478 states and 674 transitions. [2024-10-24 23:12:41,800 INFO L78 Accepts]: Start accepts. Automaton has 478 states and 674 transitions. Word has length 6 [2024-10-24 23:12:41,800 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 23:12:41,800 INFO L471 AbstractCegarLoop]: Abstraction has 478 states and 674 transitions. [2024-10-24 23:12:41,800 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 23:12:41,800 INFO L276 IsEmpty]: Start isEmpty. Operand 478 states and 674 transitions. [2024-10-24 23:12:41,801 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-10-24 23:12:41,801 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 23:12:41,801 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2024-10-24 23:12:41,801 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-24 23:12:41,801 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)] === [2024-10-24 23:12:41,802 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 23:12:41,802 INFO L85 PathProgramCache]: Analyzing trace with hash 612315525, now seen corresponding path program 1 times [2024-10-24 23:12:41,802 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 23:12:41,802 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1187697043] [2024-10-24 23:12:41,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 23:12:41,802 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 23:12:41,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-24 23:12:41,828 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [818445706] [2024-10-24 23:12:41,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 23:12:41,828 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 23:12:41,828 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 23:12:41,832 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) [2024-10-24 23:12:41,836 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-24 23:12:41,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 23:12:41,983 INFO L255 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-24 23:12:41,987 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 23:12:42,022 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 [2024-10-24 23:12:42,053 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 23:12:42,053 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 23:12:42,054 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 23:12:42,054 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1187697043] [2024-10-24 23:12:42,054 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-24 23:12:42,055 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [818445706] [2024-10-24 23:12:42,056 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [818445706] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 23:12:42,056 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 23:12:42,056 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-24 23:12:42,056 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [243980072] [2024-10-24 23:12:42,057 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 23:12:42,057 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-24 23:12:42,057 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 23:12:42,057 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-24 23:12:42,058 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-24 23:12:42,058 INFO L87 Difference]: Start difference. First operand 478 states and 674 transitions. Second operand has 4 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 23:12:42,210 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 23:12:42,210 INFO L93 Difference]: Finished difference Result 927 states and 1320 transitions. [2024-10-24 23:12:42,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 23:12:42,211 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 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 6 [2024-10-24 23:12:42,211 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 23:12:42,216 INFO L225 Difference]: With dead ends: 927 [2024-10-24 23:12:42,217 INFO L226 Difference]: Without dead ends: 925 [2024-10-24 23:12:42,217 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-24 23:12:42,218 INFO L432 NwaCegarLoop]: 683 mSDtfsCounter, 611 mSDsluCounter, 1313 mSDsCounter, 0 mSdLazyCounter, 108 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 625 SdHoareTripleChecker+Valid, 1996 SdHoareTripleChecker+Invalid, 111 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 108 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 23:12:42,220 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [625 Valid, 1996 Invalid, 111 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 108 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 23:12:42,222 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 925 states. [2024-10-24 23:12:42,247 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 925 to 484. [2024-10-24 23:12:42,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 484 states, 451 states have (on average 1.4434589800443458) internal successors, (651), 465 states have internal predecessors, (651), 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) [2024-10-24 23:12:42,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 484 states to 484 states and 681 transitions. [2024-10-24 23:12:42,252 INFO L78 Accepts]: Start accepts. Automaton has 484 states and 681 transitions. Word has length 6 [2024-10-24 23:12:42,253 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 23:12:42,253 INFO L471 AbstractCegarLoop]: Abstraction has 484 states and 681 transitions. [2024-10-24 23:12:42,253 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 23:12:42,253 INFO L276 IsEmpty]: Start isEmpty. Operand 484 states and 681 transitions. [2024-10-24 23:12:42,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2024-10-24 23:12:42,255 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 23:12:42,255 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] [2024-10-24 23:12:42,272 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-10-24 23:12:42,456 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 [2024-10-24 23:12:42,456 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)] === [2024-10-24 23:12:42,457 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 23:12:42,457 INFO L85 PathProgramCache]: Analyzing trace with hash 1096986538, now seen corresponding path program 1 times [2024-10-24 23:12:42,458 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 23:12:42,458 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1819104971] [2024-10-24 23:12:42,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 23:12:42,458 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 23:12:42,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 23:12:42,639 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 23:12:42,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 23:12:42,648 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-24 23:12:42,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 23:12:42,655 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-24 23:12:42,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 23:12:42,659 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-24 23:12:42,659 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 23:12:42,659 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1819104971] [2024-10-24 23:12:42,660 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1819104971] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 23:12:42,660 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 23:12:42,660 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-24 23:12:42,660 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [662391652] [2024-10-24 23:12:42,660 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 23:12:42,661 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-24 23:12:42,661 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 23:12:42,662 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-24 23:12:42,662 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-24 23:12:42,662 INFO L87 Difference]: Start difference. First operand 484 states and 681 transitions. Second operand has 4 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 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) [2024-10-24 23:12:42,804 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 23:12:42,804 INFO L93 Difference]: Finished difference Result 1175 states and 1671 transitions. [2024-10-24 23:12:42,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 23:12:42,805 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 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 33 [2024-10-24 23:12:42,805 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 23:12:42,808 INFO L225 Difference]: With dead ends: 1175 [2024-10-24 23:12:42,809 INFO L226 Difference]: Without dead ends: 924 [2024-10-24 23:12:42,809 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-24 23:12:42,810 INFO L432 NwaCegarLoop]: 701 mSDtfsCounter, 612 mSDsluCounter, 1334 mSDsCounter, 0 mSdLazyCounter, 101 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 626 SdHoareTripleChecker+Valid, 2035 SdHoareTripleChecker+Invalid, 102 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 101 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 23:12:42,810 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [626 Valid, 2035 Invalid, 102 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 101 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 23:12:42,812 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 924 states. [2024-10-24 23:12:42,821 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 924 to 484. [2024-10-24 23:12:42,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 484 states, 451 states have (on average 1.441241685144124) internal successors, (650), 465 states have internal predecessors, (650), 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) [2024-10-24 23:12:42,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 484 states to 484 states and 680 transitions. [2024-10-24 23:12:42,824 INFO L78 Accepts]: Start accepts. Automaton has 484 states and 680 transitions. Word has length 33 [2024-10-24 23:12:42,824 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 23:12:42,824 INFO L471 AbstractCegarLoop]: Abstraction has 484 states and 680 transitions. [2024-10-24 23:12:42,825 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 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) [2024-10-24 23:12:42,825 INFO L276 IsEmpty]: Start isEmpty. Operand 484 states and 680 transitions. [2024-10-24 23:12:42,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2024-10-24 23:12:42,826 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 23:12:42,826 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] [2024-10-24 23:12:42,827 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-24 23:12:42,827 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)] === [2024-10-24 23:12:42,827 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 23:12:42,827 INFO L85 PathProgramCache]: Analyzing trace with hash -630495610, now seen corresponding path program 1 times [2024-10-24 23:12:42,828 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 23:12:42,828 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [487998841] [2024-10-24 23:12:42,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 23:12:42,828 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 23:12:42,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 23:12:43,008 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 23:12:43,009 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 23:12:43,009 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [487998841] [2024-10-24 23:12:43,009 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [487998841] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 23:12:43,009 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 23:12:43,009 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-24 23:12:43,010 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [598096692] [2024-10-24 23:12:43,010 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 23:12:43,010 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-24 23:12:43,010 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 23:12:43,011 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-24 23:12:43,011 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-24 23:12:43,011 INFO L87 Difference]: Start difference. First operand 484 states and 680 transitions. Second operand has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 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) [2024-10-24 23:12:43,090 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 23:12:43,091 INFO L93 Difference]: Finished difference Result 919 states and 1287 transitions. [2024-10-24 23:12:43,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-24 23:12:43,091 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 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 62 [2024-10-24 23:12:43,091 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 23:12:43,093 INFO L225 Difference]: With dead ends: 919 [2024-10-24 23:12:43,094 INFO L226 Difference]: Without dead ends: 442 [2024-10-24 23:12:43,095 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-24 23:12:43,097 INFO L432 NwaCegarLoop]: 564 mSDtfsCounter, 30 mSDsluCounter, 1111 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 1675 SdHoareTripleChecker+Invalid, 87 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 23:12:43,097 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 1675 Invalid, 87 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 23:12:43,099 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 442 states. [2024-10-24 23:12:43,106 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 442 to 442. [2024-10-24 23:12:43,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 442 states, 409 states have (on average 1.4009779951100245) internal successors, (573), 423 states have internal predecessors, (573), 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) [2024-10-24 23:12:43,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 442 states to 442 states and 603 transitions. [2024-10-24 23:12:43,109 INFO L78 Accepts]: Start accepts. Automaton has 442 states and 603 transitions. Word has length 62 [2024-10-24 23:12:43,109 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 23:12:43,109 INFO L471 AbstractCegarLoop]: Abstraction has 442 states and 603 transitions. [2024-10-24 23:12:43,109 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 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) [2024-10-24 23:12:43,110 INFO L276 IsEmpty]: Start isEmpty. Operand 442 states and 603 transitions. [2024-10-24 23:12:43,111 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2024-10-24 23:12:43,111 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 23:12:43,111 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] [2024-10-24 23:12:43,111 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-24 23:12:43,111 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)] === [2024-10-24 23:12:43,112 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 23:12:43,112 INFO L85 PathProgramCache]: Analyzing trace with hash -1694695558, now seen corresponding path program 1 times [2024-10-24 23:12:43,112 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 23:12:43,112 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1978559068] [2024-10-24 23:12:43,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 23:12:43,112 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 23:12:43,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 23:12:43,287 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 23:12:43,287 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 23:12:43,287 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1978559068] [2024-10-24 23:12:43,288 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1978559068] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 23:12:43,288 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 23:12:43,288 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-24 23:12:43,288 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1433482952] [2024-10-24 23:12:43,288 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 23:12:43,288 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-24 23:12:43,288 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 23:12:43,289 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-24 23:12:43,289 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-24 23:12:43,289 INFO L87 Difference]: Start difference. First operand 442 states and 603 transitions. Second operand has 4 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 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) [2024-10-24 23:12:43,344 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 23:12:43,345 INFO L93 Difference]: Finished difference Result 811 states and 1114 transitions. [2024-10-24 23:12:43,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 23:12:43,345 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 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 62 [2024-10-24 23:12:43,345 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 23:12:43,349 INFO L225 Difference]: With dead ends: 811 [2024-10-24 23:12:43,349 INFO L226 Difference]: Without dead ends: 807 [2024-10-24 23:12:43,349 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 [2024-10-24 23:12:43,350 INFO L432 NwaCegarLoop]: 580 mSDtfsCounter, 437 mSDsluCounter, 1151 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 437 SdHoareTripleChecker+Valid, 1731 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-24 23:12:43,350 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [437 Valid, 1731 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 23:12:43,351 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 807 states. [2024-10-24 23:12:43,362 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 807 to 799. [2024-10-24 23:12:43,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 799 states, 758 states have (on average 1.4063324538258575) internal successors, (1066), 774 states have internal predecessors, (1066), 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) [2024-10-24 23:12:43,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 799 states to 799 states and 1110 transitions. [2024-10-24 23:12:43,366 INFO L78 Accepts]: Start accepts. Automaton has 799 states and 1110 transitions. Word has length 62 [2024-10-24 23:12:43,366 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 23:12:43,366 INFO L471 AbstractCegarLoop]: Abstraction has 799 states and 1110 transitions. [2024-10-24 23:12:43,366 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 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) [2024-10-24 23:12:43,367 INFO L276 IsEmpty]: Start isEmpty. Operand 799 states and 1110 transitions. [2024-10-24 23:12:43,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2024-10-24 23:12:43,368 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 23:12:43,368 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] [2024-10-24 23:12:43,368 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-24 23:12:43,368 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)] === [2024-10-24 23:12:43,368 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 23:12:43,369 INFO L85 PathProgramCache]: Analyzing trace with hash 1581839952, now seen corresponding path program 1 times [2024-10-24 23:12:43,369 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 23:12:43,369 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [953412477] [2024-10-24 23:12:43,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 23:12:43,369 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 23:12:43,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 23:12:43,480 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-10-24 23:12:43,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 23:12:43,487 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 23:12:43,488 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 23:12:43,488 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [953412477] [2024-10-24 23:12:43,488 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [953412477] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 23:12:43,488 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 23:12:43,488 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-24 23:12:43,488 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1569109354] [2024-10-24 23:12:43,488 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 23:12:43,489 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-24 23:12:43,489 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 23:12:43,489 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-24 23:12:43,489 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-24 23:12:43,489 INFO L87 Difference]: Start difference. First operand 799 states and 1110 transitions. Second operand has 4 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 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) [2024-10-24 23:12:43,621 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 23:12:43,621 INFO L93 Difference]: Finished difference Result 1068 states and 1481 transitions. [2024-10-24 23:12:43,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-24 23:12:43,621 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 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 71 [2024-10-24 23:12:43,622 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 23:12:43,625 INFO L225 Difference]: With dead ends: 1068 [2024-10-24 23:12:43,625 INFO L226 Difference]: Without dead ends: 1066 [2024-10-24 23:12:43,626 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-24 23:12:43,626 INFO L432 NwaCegarLoop]: 565 mSDtfsCounter, 489 mSDsluCounter, 1098 mSDsCounter, 0 mSdLazyCounter, 76 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 493 SdHoareTripleChecker+Valid, 1663 SdHoareTripleChecker+Invalid, 103 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 76 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 23:12:43,626 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [493 Valid, 1663 Invalid, 103 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 76 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 23:12:43,627 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1066 states. [2024-10-24 23:12:43,642 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1066 to 1056. [2024-10-24 23:12:43,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1056 states, 1002 states have (on average 1.4121756487025947) internal successors, (1415), 1019 states have internal predecessors, (1415), 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) [2024-10-24 23:12:43,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1056 states to 1056 states and 1479 transitions. [2024-10-24 23:12:43,647 INFO L78 Accepts]: Start accepts. Automaton has 1056 states and 1479 transitions. Word has length 71 [2024-10-24 23:12:43,647 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 23:12:43,647 INFO L471 AbstractCegarLoop]: Abstraction has 1056 states and 1479 transitions. [2024-10-24 23:12:43,647 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 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) [2024-10-24 23:12:43,647 INFO L276 IsEmpty]: Start isEmpty. Operand 1056 states and 1479 transitions. [2024-10-24 23:12:43,648 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2024-10-24 23:12:43,648 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 23:12:43,648 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] [2024-10-24 23:12:43,649 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-24 23:12:43,649 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)] === [2024-10-24 23:12:43,649 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 23:12:43,649 INFO L85 PathProgramCache]: Analyzing trace with hash 318405018, now seen corresponding path program 1 times [2024-10-24 23:12:43,649 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 23:12:43,649 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1605013799] [2024-10-24 23:12:43,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 23:12:43,649 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 23:12:43,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 23:12:43,879 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-10-24 23:12:43,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 23:12:43,932 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 23:12:43,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 23:12:43,937 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 23:12:43,937 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 23:12:43,937 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1605013799] [2024-10-24 23:12:43,937 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1605013799] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 23:12:43,937 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [933254345] [2024-10-24 23:12:43,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 23:12:43,938 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 23:12:43,938 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 23:12:43,939 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) [2024-10-24 23:12:43,940 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-10-24 23:12:44,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 23:12:44,142 INFO L255 TraceCheckSpWp]: Trace formula consists of 478 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-10-24 23:12:44,145 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 23:12:44,213 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 23:12:44,214 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 23:12:44,214 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [933254345] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 23:12:44,214 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-24 23:12:44,214 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [8] total 11 [2024-10-24 23:12:44,214 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [567146855] [2024-10-24 23:12:44,214 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 23:12:44,214 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 23:12:44,214 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 23:12:44,215 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 23:12:44,215 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2024-10-24 23:12:44,215 INFO L87 Difference]: Start difference. First operand 1056 states and 1479 transitions. Second operand has 5 states, 4 states have (on average 18.25) internal successors, (73), 5 states have internal predecessors, (73), 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) [2024-10-24 23:12:44,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 23:12:44,289 INFO L93 Difference]: Finished difference Result 1427 states and 1991 transitions. [2024-10-24 23:12:44,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-24 23:12:44,290 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 18.25) internal successors, (73), 5 states have internal predecessors, (73), 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 78 [2024-10-24 23:12:44,290 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 23:12:44,295 INFO L225 Difference]: With dead ends: 1427 [2024-10-24 23:12:44,295 INFO L226 Difference]: Without dead ends: 1426 [2024-10-24 23:12:44,296 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 77 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2024-10-24 23:12:44,297 INFO L432 NwaCegarLoop]: 573 mSDtfsCounter, 555 mSDsluCounter, 1080 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 555 SdHoareTripleChecker+Valid, 1653 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-24 23:12:44,297 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [555 Valid, 1653 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 23:12:44,299 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1426 states. [2024-10-24 23:12:44,322 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1426 to 1377. [2024-10-24 23:12:44,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1377 states, 1316 states have (on average 1.4141337386018238) internal successors, (1861), 1335 states have internal predecessors, (1861), 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) [2024-10-24 23:12:44,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1377 states to 1377 states and 1935 transitions. [2024-10-24 23:12:44,330 INFO L78 Accepts]: Start accepts. Automaton has 1377 states and 1935 transitions. Word has length 78 [2024-10-24 23:12:44,330 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 23:12:44,330 INFO L471 AbstractCegarLoop]: Abstraction has 1377 states and 1935 transitions. [2024-10-24 23:12:44,330 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 18.25) internal successors, (73), 5 states have internal predecessors, (73), 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) [2024-10-24 23:12:44,330 INFO L276 IsEmpty]: Start isEmpty. Operand 1377 states and 1935 transitions. [2024-10-24 23:12:44,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2024-10-24 23:12:44,331 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 23:12:44,332 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] [2024-10-24 23:12:44,346 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-10-24 23:12:44,533 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 [2024-10-24 23:12:44,533 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)] === [2024-10-24 23:12:44,534 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 23:12:44,534 INFO L85 PathProgramCache]: Analyzing trace with hash 1280621007, now seen corresponding path program 1 times [2024-10-24 23:12:44,534 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 23:12:44,536 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [584114726] [2024-10-24 23:12:44,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 23:12:44,536 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 23:12:44,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 23:12:44,784 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-10-24 23:12:44,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 23:12:44,833 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 23:12:44,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 23:12:44,838 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 23:12:44,838 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 23:12:44,838 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [584114726] [2024-10-24 23:12:44,838 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [584114726] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 23:12:44,838 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1171603372] [2024-10-24 23:12:44,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 23:12:44,838 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 23:12:44,839 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 23:12:44,840 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) [2024-10-24 23:12:44,841 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-10-24 23:12:45,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 23:12:45,039 INFO L255 TraceCheckSpWp]: Trace formula consists of 479 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-10-24 23:12:45,041 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 23:12:45,183 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 23:12:45,183 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-24 23:12:45,371 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 23:12:45,371 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1171603372] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-24 23:12:45,371 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-24 23:12:45,371 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 6, 7] total 18 [2024-10-24 23:12:45,372 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [458122585] [2024-10-24 23:12:45,372 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-24 23:12:45,372 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-10-24 23:12:45,372 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 23:12:45,373 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-10-24 23:12:45,373 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=269, Unknown=0, NotChecked=0, Total=342 [2024-10-24 23:12:45,373 INFO L87 Difference]: Start difference. First operand 1377 states and 1935 transitions. Second operand has 19 states, 18 states have (on average 11.833333333333334) internal successors, (213), 15 states have internal predecessors, (213), 5 states have call successors, (8), 7 states have call predecessors, (8), 5 states have return successors, (6), 2 states have call predecessors, (6), 5 states have call successors, (6) [2024-10-24 23:12:46,876 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 23:12:46,876 INFO L93 Difference]: Finished difference Result 3721 states and 5212 transitions. [2024-10-24 23:12:46,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2024-10-24 23:12:46,877 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 18 states have (on average 11.833333333333334) internal successors, (213), 15 states have internal predecessors, (213), 5 states have call successors, (8), 7 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 79 [2024-10-24 23:12:46,878 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 23:12:46,891 INFO L225 Difference]: With dead ends: 3721 [2024-10-24 23:12:46,891 INFO L226 Difference]: Without dead ends: 3719 [2024-10-24 23:12:46,892 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 199 GetRequests, 157 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 437 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=542, Invalid=1350, Unknown=0, NotChecked=0, Total=1892 [2024-10-24 23:12:46,893 INFO L432 NwaCegarLoop]: 634 mSDtfsCounter, 5594 mSDsluCounter, 6081 mSDsCounter, 0 mSdLazyCounter, 694 mSolverCounterSat, 369 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5619 SdHoareTripleChecker+Valid, 6715 SdHoareTripleChecker+Invalid, 1063 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 369 IncrementalHoareTripleChecker+Valid, 694 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-10-24 23:12:46,894 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5619 Valid, 6715 Invalid, 1063 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [369 Valid, 694 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-10-24 23:12:46,896 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3719 states. [2024-10-24 23:12:46,962 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3719 to 2752. [2024-10-24 23:12:46,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2752 states, 2632 states have (on average 1.3962765957446808) internal successors, (3675), 2653 states have internal predecessors, (3675), 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) [2024-10-24 23:12:46,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2752 states to 2752 states and 3864 transitions. [2024-10-24 23:12:46,972 INFO L78 Accepts]: Start accepts. Automaton has 2752 states and 3864 transitions. Word has length 79 [2024-10-24 23:12:46,972 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 23:12:46,972 INFO L471 AbstractCegarLoop]: Abstraction has 2752 states and 3864 transitions. [2024-10-24 23:12:46,972 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 18 states have (on average 11.833333333333334) internal successors, (213), 15 states have internal predecessors, (213), 5 states have call successors, (8), 7 states have call predecessors, (8), 5 states have return successors, (6), 2 states have call predecessors, (6), 5 states have call successors, (6) [2024-10-24 23:12:46,972 INFO L276 IsEmpty]: Start isEmpty. Operand 2752 states and 3864 transitions. [2024-10-24 23:12:46,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2024-10-24 23:12:46,973 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 23:12:46,973 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] [2024-10-24 23:12:46,986 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-10-24 23:12:47,174 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 [2024-10-24 23:12:47,174 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)] === [2024-10-24 23:12:47,175 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 23:12:47,175 INFO L85 PathProgramCache]: Analyzing trace with hash 1237871349, now seen corresponding path program 1 times [2024-10-24 23:12:47,175 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 23:12:47,175 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [178517848] [2024-10-24 23:12:47,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 23:12:47,175 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 23:12:47,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 23:12:47,255 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 23:12:47,255 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 23:12:47,255 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [178517848] [2024-10-24 23:12:47,255 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [178517848] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 23:12:47,255 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 23:12:47,255 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-24 23:12:47,255 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1340522591] [2024-10-24 23:12:47,256 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 23:12:47,256 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 23:12:47,256 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 23:12:47,256 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 23:12:47,256 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 23:12:47,256 INFO L87 Difference]: Start difference. First operand 2752 states and 3864 transitions. Second operand has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 2 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 23:12:47,392 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 23:12:47,393 INFO L93 Difference]: Finished difference Result 5765 states and 8133 transitions. [2024-10-24 23:12:47,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 23:12:47,393 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 2 states have internal predecessors, (80), 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 80 [2024-10-24 23:12:47,393 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 23:12:47,401 INFO L225 Difference]: With dead ends: 5765 [2024-10-24 23:12:47,401 INFO L226 Difference]: Without dead ends: 3020 [2024-10-24 23:12:47,404 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 23:12:47,404 INFO L432 NwaCegarLoop]: 808 mSDtfsCounter, 342 mSDsluCounter, 548 mSDsCounter, 0 mSdLazyCounter, 75 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 347 SdHoareTripleChecker+Valid, 1356 SdHoareTripleChecker+Invalid, 81 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 75 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 23:12:47,404 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [347 Valid, 1356 Invalid, 81 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 75 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 23:12:47,406 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3020 states. [2024-10-24 23:12:47,444 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3020 to 2909. [2024-10-24 23:12:47,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2909 states, 2795 states have (on average 1.4089445438282648) internal successors, (3938), 2815 states have internal predecessors, (3938), 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) [2024-10-24 23:12:47,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2909 states to 2909 states and 4120 transitions. [2024-10-24 23:12:47,454 INFO L78 Accepts]: Start accepts. Automaton has 2909 states and 4120 transitions. Word has length 80 [2024-10-24 23:12:47,454 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 23:12:47,454 INFO L471 AbstractCegarLoop]: Abstraction has 2909 states and 4120 transitions. [2024-10-24 23:12:47,455 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 2 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 23:12:47,455 INFO L276 IsEmpty]: Start isEmpty. Operand 2909 states and 4120 transitions. [2024-10-24 23:12:47,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2024-10-24 23:12:47,455 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 23:12:47,455 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 23:12:47,455 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-24 23:12:47,456 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)] === [2024-10-24 23:12:47,456 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 23:12:47,456 INFO L85 PathProgramCache]: Analyzing trace with hash 593112272, now seen corresponding path program 1 times [2024-10-24 23:12:47,456 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 23:12:47,456 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2137460730] [2024-10-24 23:12:47,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 23:12:47,456 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 23:12:47,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 23:12:47,707 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-10-24 23:12:47,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 23:12:47,722 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 23:12:47,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 23:12:47,748 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-10-24 23:12:47,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 23:12:47,754 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-10-24 23:12:47,754 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 23:12:47,754 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2137460730] [2024-10-24 23:12:47,754 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2137460730] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 23:12:47,754 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1289324377] [2024-10-24 23:12:47,755 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 23:12:47,755 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 23:12:47,755 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 23:12:47,761 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) [2024-10-24 23:12:47,762 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-10-24 23:12:48,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 23:12:48,008 INFO L255 TraceCheckSpWp]: Trace formula consists of 572 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-24 23:12:48,011 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 23:12:48,046 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 23:12:48,046 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 23:12:48,046 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1289324377] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 23:12:48,046 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-24 23:12:48,047 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 9 [2024-10-24 23:12:48,047 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [816388972] [2024-10-24 23:12:48,047 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 23:12:48,047 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-24 23:12:48,047 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 23:12:48,048 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-24 23:12:48,048 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2024-10-24 23:12:48,048 INFO L87 Difference]: Start difference. First operand 2909 states and 4120 transitions. Second operand has 4 states, 3 states have (on average 26.666666666666668) internal successors, (80), 4 states have internal predecessors, (80), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-10-24 23:12:48,132 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 23:12:48,132 INFO L93 Difference]: Finished difference Result 2909 states and 4120 transitions. [2024-10-24 23:12:48,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 23:12:48,133 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 26.666666666666668) internal successors, (80), 4 states have internal predecessors, (80), 2 states have call successors, (4), 2 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 87 [2024-10-24 23:12:48,133 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 23:12:48,141 INFO L225 Difference]: With dead ends: 2909 [2024-10-24 23:12:48,141 INFO L226 Difference]: Without dead ends: 2908 [2024-10-24 23:12:48,142 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 88 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2024-10-24 23:12:48,143 INFO L432 NwaCegarLoop]: 578 mSDtfsCounter, 1121 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1121 SdHoareTripleChecker+Valid, 578 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-24 23:12:48,143 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1121 Valid, 578 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 23:12:48,145 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2908 states. [2024-10-24 23:12:48,195 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2908 to 2908. [2024-10-24 23:12:48,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2908 states, 2795 states have (on average 1.4071556350626118) internal successors, (3933), 2814 states have internal predecessors, (3933), 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) [2024-10-24 23:12:48,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2908 states to 2908 states and 4115 transitions. [2024-10-24 23:12:48,204 INFO L78 Accepts]: Start accepts. Automaton has 2908 states and 4115 transitions. Word has length 87 [2024-10-24 23:12:48,204 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 23:12:48,205 INFO L471 AbstractCegarLoop]: Abstraction has 2908 states and 4115 transitions. [2024-10-24 23:12:48,205 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 26.666666666666668) internal successors, (80), 4 states have internal predecessors, (80), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-10-24 23:12:48,205 INFO L276 IsEmpty]: Start isEmpty. Operand 2908 states and 4115 transitions. [2024-10-24 23:12:48,205 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2024-10-24 23:12:48,205 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 23:12:48,206 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] [2024-10-24 23:12:48,219 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-10-24 23:12:48,406 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 [2024-10-24 23:12:48,406 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)] === [2024-10-24 23:12:48,406 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 23:12:48,407 INFO L85 PathProgramCache]: Analyzing trace with hash 1206611317, now seen corresponding path program 1 times [2024-10-24 23:12:48,407 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 23:12:48,407 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1540841106] [2024-10-24 23:12:48,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 23:12:48,407 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 23:12:48,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 23:12:48,704 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-10-24 23:12:48,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 23:12:48,721 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 23:12:48,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 23:12:48,746 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-10-24 23:12:48,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 23:12:48,753 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-10-24 23:12:48,754 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 23:12:48,754 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1540841106] [2024-10-24 23:12:48,754 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1540841106] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 23:12:48,754 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2050679397] [2024-10-24 23:12:48,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 23:12:48,754 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 23:12:48,754 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 23:12:48,756 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) [2024-10-24 23:12:48,767 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-10-24 23:12:48,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 23:12:48,995 INFO L255 TraceCheckSpWp]: Trace formula consists of 573 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-10-24 23:12:48,997 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 23:12:49,091 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 23:12:49,091 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-24 23:12:49,220 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-10-24 23:12:49,220 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2050679397] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-24 23:12:49,220 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-24 23:12:49,220 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 4, 5] total 13 [2024-10-24 23:12:49,221 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1826025717] [2024-10-24 23:12:49,221 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-24 23:12:49,221 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-10-24 23:12:49,221 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 23:12:49,222 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-10-24 23:12:49,222 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=124, Unknown=0, NotChecked=0, Total=182 [2024-10-24 23:12:49,222 INFO L87 Difference]: Start difference. First operand 2908 states and 4115 transitions. Second operand has 14 states, 13 states have (on average 17.076923076923077) internal successors, (222), 12 states have internal predecessors, (222), 5 states have call successors, (11), 8 states have call predecessors, (11), 5 states have return successors, (9), 5 states have call predecessors, (9), 5 states have call successors, (9) [2024-10-24 23:12:50,016 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 23:12:50,016 INFO L93 Difference]: Finished difference Result 5818 states and 8241 transitions. [2024-10-24 23:12:50,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-10-24 23:12:50,017 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 17.076923076923077) internal successors, (222), 12 states have internal predecessors, (222), 5 states have call successors, (11), 8 states have call predecessors, (11), 5 states have return successors, (9), 5 states have call predecessors, (9), 5 states have call successors, (9) Word has length 88 [2024-10-24 23:12:50,017 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 23:12:50,035 INFO L225 Difference]: With dead ends: 5818 [2024-10-24 23:12:50,035 INFO L226 Difference]: Without dead ends: 5817 [2024-10-24 23:12:50,038 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 206 GetRequests, 180 SyntacticMatches, 1 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 128 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=231, Invalid=471, Unknown=0, NotChecked=0, Total=702 [2024-10-24 23:12:50,038 INFO L432 NwaCegarLoop]: 545 mSDtfsCounter, 2434 mSDsluCounter, 4172 mSDsCounter, 0 mSdLazyCounter, 394 mSolverCounterSat, 260 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2453 SdHoareTripleChecker+Valid, 4717 SdHoareTripleChecker+Invalid, 654 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 260 IncrementalHoareTripleChecker+Valid, 394 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-24 23:12:50,039 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2453 Valid, 4717 Invalid, 654 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [260 Valid, 394 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-24 23:12:50,043 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5817 states. [2024-10-24 23:12:50,144 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5817 to 5384. [2024-10-24 23:12:50,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5384 states, 5162 states have (on average 1.408175125920186) internal successors, (7269), 5186 states have internal predecessors, (7269), 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) [2024-10-24 23:12:50,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5384 states to 5384 states and 7625 transitions. [2024-10-24 23:12:50,162 INFO L78 Accepts]: Start accepts. Automaton has 5384 states and 7625 transitions. Word has length 88 [2024-10-24 23:12:50,162 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 23:12:50,162 INFO L471 AbstractCegarLoop]: Abstraction has 5384 states and 7625 transitions. [2024-10-24 23:12:50,162 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 17.076923076923077) internal successors, (222), 12 states have internal predecessors, (222), 5 states have call successors, (11), 8 states have call predecessors, (11), 5 states have return successors, (9), 5 states have call predecessors, (9), 5 states have call successors, (9) [2024-10-24 23:12:50,162 INFO L276 IsEmpty]: Start isEmpty. Operand 5384 states and 7625 transitions. [2024-10-24 23:12:50,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2024-10-24 23:12:50,163 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 23:12:50,163 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 23:12:50,179 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-10-24 23:12:50,364 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 [2024-10-24 23:12:50,365 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)] === [2024-10-24 23:12:50,365 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 23:12:50,365 INFO L85 PathProgramCache]: Analyzing trace with hash -2038052979, now seen corresponding path program 1 times [2024-10-24 23:12:50,365 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 23:12:50,365 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [585845667] [2024-10-24 23:12:50,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 23:12:50,366 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 23:12:50,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 23:12:50,609 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-10-24 23:12:50,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 23:12:50,622 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 23:12:50,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 23:12:50,626 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-10-24 23:12:50,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 23:12:50,632 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-24 23:12:50,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 23:12:50,635 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-10-24 23:12:50,635 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 23:12:50,636 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [585845667] [2024-10-24 23:12:50,636 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [585845667] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 23:12:50,636 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 23:12:50,636 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 23:12:50,636 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1103939749] [2024-10-24 23:12:50,636 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 23:12:50,636 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-24 23:12:50,636 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 23:12:50,637 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-24 23:12:50,637 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-24 23:12:50,637 INFO L87 Difference]: Start difference. First operand 5384 states and 7625 transitions. Second operand has 6 states, 5 states have (on average 19.0) internal successors, (95), 4 states have internal predecessors, (95), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-10-24 23:12:51,136 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 23:12:51,137 INFO L93 Difference]: Finished difference Result 7610 states and 10842 transitions. [2024-10-24 23:12:51,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-24 23:12:51,137 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 19.0) internal successors, (95), 4 states have internal predecessors, (95), 1 states have call successors, (4), 2 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 112 [2024-10-24 23:12:51,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 23:12:51,157 INFO L225 Difference]: With dead ends: 7610 [2024-10-24 23:12:51,158 INFO L226 Difference]: Without dead ends: 7608 [2024-10-24 23:12:51,161 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-10-24 23:12:51,161 INFO L432 NwaCegarLoop]: 535 mSDtfsCounter, 481 mSDsluCounter, 1961 mSDsCounter, 0 mSdLazyCounter, 383 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 492 SdHoareTripleChecker+Valid, 2496 SdHoareTripleChecker+Invalid, 438 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 383 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-24 23:12:51,161 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [492 Valid, 2496 Invalid, 438 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 383 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-24 23:12:51,167 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7608 states. [2024-10-24 23:12:51,333 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7608 to 5552. [2024-10-24 23:12:51,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5552 states, 5321 states have (on average 1.4033076489381695) internal successors, (7467), 5346 states have internal predecessors, (7467), 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) [2024-10-24 23:12:51,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5552 states to 5552 states and 7844 transitions. [2024-10-24 23:12:51,353 INFO L78 Accepts]: Start accepts. Automaton has 5552 states and 7844 transitions. Word has length 112 [2024-10-24 23:12:51,353 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 23:12:51,353 INFO L471 AbstractCegarLoop]: Abstraction has 5552 states and 7844 transitions. [2024-10-24 23:12:51,353 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 19.0) internal successors, (95), 4 states have internal predecessors, (95), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-10-24 23:12:51,353 INFO L276 IsEmpty]: Start isEmpty. Operand 5552 states and 7844 transitions. [2024-10-24 23:12:51,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2024-10-24 23:12:51,355 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 23:12:51,355 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-10-24 23:12:51,355 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-10-24 23:12:51,355 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)] === [2024-10-24 23:12:51,355 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 23:12:51,356 INFO L85 PathProgramCache]: Analyzing trace with hash -1963744125, now seen corresponding path program 1 times [2024-10-24 23:12:51,356 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 23:12:51,356 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1503459914] [2024-10-24 23:12:51,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 23:12:51,356 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 23:12:51,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 23:12:51,576 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-10-24 23:12:51,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 23:12:51,630 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 23:12:51,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 23:12:51,633 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-10-24 23:12:51,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 23:12:51,637 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-24 23:12:51,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 23:12:51,639 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 5 proven. 5 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-10-24 23:12:51,639 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 23:12:51,639 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1503459914] [2024-10-24 23:12:51,640 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1503459914] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 23:12:51,640 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [389839538] [2024-10-24 23:12:51,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 23:12:51,640 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 23:12:51,640 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 23:12:51,641 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) [2024-10-24 23:12:51,642 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-10-24 23:12:51,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 23:12:51,918 INFO L255 TraceCheckSpWp]: Trace formula consists of 757 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-10-24 23:12:51,921 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 23:12:52,024 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-10-24 23:12:52,024 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 23:12:52,024 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [389839538] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 23:12:52,024 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-24 23:12:52,024 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [8] total 12 [2024-10-24 23:12:52,024 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [965702458] [2024-10-24 23:12:52,025 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 23:12:52,025 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 23:12:52,025 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 23:12:52,025 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 23:12:52,025 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2024-10-24 23:12:52,025 INFO L87 Difference]: Start difference. First operand 5552 states and 7844 transitions. Second operand has 7 states, 7 states have (on average 15.142857142857142) internal successors, (106), 5 states have internal predecessors, (106), 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) [2024-10-24 23:12:52,287 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 23:12:52,287 INFO L93 Difference]: Finished difference Result 10599 states and 15025 transitions. [2024-10-24 23:12:52,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-24 23:12:52,287 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 15.142857142857142) internal successors, (106), 5 states have internal predecessors, (106), 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 118 [2024-10-24 23:12:52,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 23:12:52,300 INFO L225 Difference]: With dead ends: 10599 [2024-10-24 23:12:52,300 INFO L226 Difference]: Without dead ends: 5354 [2024-10-24 23:12:52,305 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 133 GetRequests, 120 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=165, Unknown=0, NotChecked=0, Total=210 [2024-10-24 23:12:52,306 INFO L432 NwaCegarLoop]: 561 mSDtfsCounter, 82 mSDsluCounter, 2705 mSDsCounter, 0 mSdLazyCounter, 239 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 83 SdHoareTripleChecker+Valid, 3266 SdHoareTripleChecker+Invalid, 254 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 239 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 23:12:52,306 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [83 Valid, 3266 Invalid, 254 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 239 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 23:12:52,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5354 states. [2024-10-24 23:12:52,394 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5354 to 5354. [2024-10-24 23:12:52,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5354 states, 5140 states have (on average 1.4071984435797666) internal successors, (7233), 5163 states have internal predecessors, (7233), 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) [2024-10-24 23:12:52,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5354 states to 5354 states and 7582 transitions. [2024-10-24 23:12:52,414 INFO L78 Accepts]: Start accepts. Automaton has 5354 states and 7582 transitions. Word has length 118 [2024-10-24 23:12:52,415 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 23:12:52,415 INFO L471 AbstractCegarLoop]: Abstraction has 5354 states and 7582 transitions. [2024-10-24 23:12:52,415 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.142857142857142) internal successors, (106), 5 states have internal predecessors, (106), 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) [2024-10-24 23:12:52,415 INFO L276 IsEmpty]: Start isEmpty. Operand 5354 states and 7582 transitions. [2024-10-24 23:12:52,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2024-10-24 23:12:52,416 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 23:12:52,416 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, 1, 1, 1] [2024-10-24 23:12:52,431 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-10-24 23:12:52,620 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 [2024-10-24 23:12:52,621 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)] === [2024-10-24 23:12:52,621 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 23:12:52,621 INFO L85 PathProgramCache]: Analyzing trace with hash -793576872, now seen corresponding path program 1 times [2024-10-24 23:12:52,621 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 23:12:52,621 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [280482253] [2024-10-24 23:12:52,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 23:12:52,621 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 23:12:52,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 23:12:53,111 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-10-24 23:12:53,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 23:12:53,120 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-24 23:12:53,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 23:12:53,138 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-24 23:12:53,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 23:12:53,219 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-24 23:12:53,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 23:12:53,231 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-10-24 23:12:53,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 23:12:53,234 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-10-24 23:12:53,234 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 23:12:53,234 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [280482253] [2024-10-24 23:12:53,234 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [280482253] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 23:12:53,235 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2072581893] [2024-10-24 23:12:53,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 23:12:53,235 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 23:12:53,235 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 23:12:53,236 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) [2024-10-24 23:12:53,237 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-10-24 23:12:53,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 23:12:53,572 INFO L255 TraceCheckSpWp]: Trace formula consists of 767 conjuncts, 29 conjuncts are in the unsatisfiable core [2024-10-24 23:12:53,576 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 23:12:53,581 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 [2024-10-24 23:12:53,594 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 [2024-10-24 23:12:53,610 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 [2024-10-24 23:12:54,109 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-10-24 23:12:54,109 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 23:12:54,109 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2072581893] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 23:12:54,109 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-24 23:12:54,110 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [7] total 16 [2024-10-24 23:12:54,110 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1105834429] [2024-10-24 23:12:54,110 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 23:12:54,110 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-10-24 23:12:54,110 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 23:12:54,111 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-10-24 23:12:54,111 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=201, Unknown=0, NotChecked=0, Total=240 [2024-10-24 23:12:54,111 INFO L87 Difference]: Start difference. First operand 5354 states and 7582 transitions. Second operand has 11 states, 11 states have (on average 9.545454545454545) internal successors, (105), 10 states have internal predecessors, (105), 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) [2024-10-24 23:12:55,319 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 23:12:55,319 INFO L93 Difference]: Finished difference Result 12733 states and 18114 transitions. [2024-10-24 23:12:55,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-10-24 23:12:55,320 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 9.545454545454545) internal successors, (105), 10 states have internal predecessors, (105), 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 123 [2024-10-24 23:12:55,320 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 23:12:55,338 INFO L225 Difference]: With dead ends: 12733 [2024-10-24 23:12:55,338 INFO L226 Difference]: Without dead ends: 7424 [2024-10-24 23:12:55,346 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 144 GetRequests, 121 SyntacticMatches, 1 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=105, Invalid=447, Unknown=0, NotChecked=0, Total=552 [2024-10-24 23:12:55,347 INFO L432 NwaCegarLoop]: 560 mSDtfsCounter, 652 mSDsluCounter, 2876 mSDsCounter, 0 mSdLazyCounter, 776 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 664 SdHoareTripleChecker+Valid, 3436 SdHoareTripleChecker+Invalid, 783 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 776 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-10-24 23:12:55,347 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [664 Valid, 3436 Invalid, 783 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 776 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-10-24 23:12:55,352 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7424 states. [2024-10-24 23:12:55,449 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7424 to 5354. [2024-10-24 23:12:55,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5354 states, 5140 states have (on average 1.4070038910505838) internal successors, (7232), 5163 states have internal predecessors, (7232), 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) [2024-10-24 23:12:55,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5354 states to 5354 states and 7581 transitions. [2024-10-24 23:12:55,465 INFO L78 Accepts]: Start accepts. Automaton has 5354 states and 7581 transitions. Word has length 123 [2024-10-24 23:12:55,465 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 23:12:55,465 INFO L471 AbstractCegarLoop]: Abstraction has 5354 states and 7581 transitions. [2024-10-24 23:12:55,465 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 9.545454545454545) internal successors, (105), 10 states have internal predecessors, (105), 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) [2024-10-24 23:12:55,466 INFO L276 IsEmpty]: Start isEmpty. Operand 5354 states and 7581 transitions. [2024-10-24 23:12:55,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2024-10-24 23:12:55,466 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 23:12:55,467 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, 1, 1, 1, 1] [2024-10-24 23:12:55,487 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-10-24 23:12:55,667 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 [2024-10-24 23:12:55,667 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)] === [2024-10-24 23:12:55,668 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 23:12:55,668 INFO L85 PathProgramCache]: Analyzing trace with hash 817925879, now seen corresponding path program 1 times [2024-10-24 23:12:55,668 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 23:12:55,668 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [391073610] [2024-10-24 23:12:55,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 23:12:55,668 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 23:12:55,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 23:12:55,977 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-10-24 23:12:55,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 23:12:55,983 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-24 23:12:55,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 23:12:55,996 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-24 23:12:55,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 23:12:56,056 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-10-24 23:12:56,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 23:12:56,066 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-10-24 23:12:56,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 23:12:56,069 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-10-24 23:12:56,069 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 23:12:56,069 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [391073610] [2024-10-24 23:12:56,069 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [391073610] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 23:12:56,069 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1926790531] [2024-10-24 23:12:56,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 23:12:56,069 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 23:12:56,069 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 23:12:56,078 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) [2024-10-24 23:12:56,082 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-10-24 23:12:56,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 23:12:56,564 INFO L255 TraceCheckSpWp]: Trace formula consists of 768 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-10-24 23:12:56,566 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 23:12:56,667 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 23:12:56,668 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 23:12:56,668 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1926790531] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 23:12:56,668 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-24 23:12:56,668 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [7] total 13 [2024-10-24 23:12:56,668 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [548557075] [2024-10-24 23:12:56,668 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 23:12:56,668 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-24 23:12:56,668 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 23:12:56,669 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-24 23:12:56,669 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=131, Unknown=0, NotChecked=0, Total=156 [2024-10-24 23:12:56,669 INFO L87 Difference]: Start difference. First operand 5354 states and 7581 transitions. Second operand has 9 states, 8 states have (on average 14.25) internal successors, (114), 9 states have internal predecessors, (114), 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) [2024-10-24 23:12:56,880 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 23:12:56,881 INFO L93 Difference]: Finished difference Result 8150 states and 11516 transitions. [2024-10-24 23:12:56,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-10-24 23:12:56,881 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 14.25) internal successors, (114), 9 states have internal predecessors, (114), 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 124 [2024-10-24 23:12:56,881 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 23:12:56,888 INFO L225 Difference]: With dead ends: 8150 [2024-10-24 23:12:56,888 INFO L226 Difference]: Without dead ends: 2887 [2024-10-24 23:12:56,894 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 139 GetRequests, 126 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=177, Unknown=0, NotChecked=0, Total=210 [2024-10-24 23:12:56,895 INFO L432 NwaCegarLoop]: 572 mSDtfsCounter, 13 mSDsluCounter, 3966 mSDsCounter, 0 mSdLazyCounter, 177 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 4538 SdHoareTripleChecker+Invalid, 183 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 177 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 23:12:56,895 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 4538 Invalid, 183 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 177 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 23:12:56,897 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2887 states. [2024-10-24 23:12:56,956 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2887 to 2885. [2024-10-24 23:12:56,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2885 states, 2747 states have (on average 1.3971605387695667) internal successors, (3838), 2763 states have internal predecessors, (3838), 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) [2024-10-24 23:12:56,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2885 states to 2885 states and 4021 transitions. [2024-10-24 23:12:56,964 INFO L78 Accepts]: Start accepts. Automaton has 2885 states and 4021 transitions. Word has length 124 [2024-10-24 23:12:56,964 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 23:12:56,965 INFO L471 AbstractCegarLoop]: Abstraction has 2885 states and 4021 transitions. [2024-10-24 23:12:56,965 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 14.25) internal successors, (114), 9 states have internal predecessors, (114), 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) [2024-10-24 23:12:56,965 INFO L276 IsEmpty]: Start isEmpty. Operand 2885 states and 4021 transitions. [2024-10-24 23:12:56,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2024-10-24 23:12:56,966 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 23:12:56,966 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-10-24 23:12:56,986 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2024-10-24 23:12:57,166 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,SelfDestructingSolverStorable14 [2024-10-24 23:12:57,167 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)] === [2024-10-24 23:12:57,167 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 23:12:57,167 INFO L85 PathProgramCache]: Analyzing trace with hash 1317827799, now seen corresponding path program 1 times [2024-10-24 23:12:57,167 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 23:12:57,167 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1657809350] [2024-10-24 23:12:57,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 23:12:57,167 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 23:12:57,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 23:12:57,499 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-10-24 23:12:57,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 23:12:57,504 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-24 23:12:57,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 23:12:57,511 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-24 23:12:57,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 23:12:57,582 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-10-24 23:12:57,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 23:12:57,586 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-10-24 23:12:57,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 23:12:57,591 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 5 proven. 8 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-10-24 23:12:57,591 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 23:12:57,591 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1657809350] [2024-10-24 23:12:57,591 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1657809350] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 23:12:57,592 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [726047243] [2024-10-24 23:12:57,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 23:12:57,592 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 23:12:57,592 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 23:12:57,594 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) [2024-10-24 23:12:57,601 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-10-24 23:12:57,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 23:12:57,974 INFO L255 TraceCheckSpWp]: Trace formula consists of 798 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-10-24 23:12:57,977 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 23:12:58,059 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 19 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-24 23:12:58,060 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-24 23:12:58,167 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 5 proven. 8 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-10-24 23:12:58,167 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [726047243] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-24 23:12:58,167 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-24 23:12:58,167 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 10, 6] total 18 [2024-10-24 23:12:58,167 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1572880626] [2024-10-24 23:12:58,167 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-24 23:12:58,168 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-10-24 23:12:58,168 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 23:12:58,168 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-10-24 23:12:58,168 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=253, Unknown=0, NotChecked=0, Total=306 [2024-10-24 23:12:58,169 INFO L87 Difference]: Start difference. First operand 2885 states and 4021 transitions. Second operand has 18 states, 16 states have (on average 8.8125) internal successors, (141), 16 states have internal predecessors, (141), 3 states have call successors, (12), 4 states have call predecessors, (12), 6 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2024-10-24 23:12:59,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 23:12:59,296 INFO L93 Difference]: Finished difference Result 5725 states and 8016 transitions. [2024-10-24 23:12:59,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2024-10-24 23:12:59,297 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 16 states have (on average 8.8125) internal successors, (141), 16 states have internal predecessors, (141), 3 states have call successors, (12), 4 states have call predecessors, (12), 6 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) Word has length 126 [2024-10-24 23:12:59,297 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 23:12:59,303 INFO L225 Difference]: With dead ends: 5725 [2024-10-24 23:12:59,303 INFO L226 Difference]: Without dead ends: 2945 [2024-10-24 23:12:59,307 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 293 GetRequests, 254 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 317 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=258, Invalid=1382, Unknown=0, NotChecked=0, Total=1640 [2024-10-24 23:12:59,307 INFO L432 NwaCegarLoop]: 553 mSDtfsCounter, 89 mSDsluCounter, 6935 mSDsCounter, 0 mSdLazyCounter, 780 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 89 SdHoareTripleChecker+Valid, 7488 SdHoareTripleChecker+Invalid, 823 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 780 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-10-24 23:12:59,308 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [89 Valid, 7488 Invalid, 823 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 780 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-10-24 23:12:59,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2945 states. [2024-10-24 23:12:59,416 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2945 to 2923. [2024-10-24 23:12:59,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2923 states, 2784 states have (on average 1.3976293103448276) internal successors, (3891), 2797 states have internal predecessors, (3891), 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) [2024-10-24 23:12:59,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2923 states to 2923 states and 4070 transitions. [2024-10-24 23:12:59,426 INFO L78 Accepts]: Start accepts. Automaton has 2923 states and 4070 transitions. Word has length 126 [2024-10-24 23:12:59,426 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 23:12:59,426 INFO L471 AbstractCegarLoop]: Abstraction has 2923 states and 4070 transitions. [2024-10-24 23:12:59,426 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 16 states have (on average 8.8125) internal successors, (141), 16 states have internal predecessors, (141), 3 states have call successors, (12), 4 states have call predecessors, (12), 6 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2024-10-24 23:12:59,427 INFO L276 IsEmpty]: Start isEmpty. Operand 2923 states and 4070 transitions. [2024-10-24 23:12:59,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2024-10-24 23:12:59,428 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 23:12:59,428 INFO L215 NwaCegarLoop]: trace histogram [6, 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] [2024-10-24 23:12:59,445 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2024-10-24 23:12:59,631 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2024-10-24 23:12:59,632 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)] === [2024-10-24 23:12:59,633 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 23:12:59,633 INFO L85 PathProgramCache]: Analyzing trace with hash -838588521, now seen corresponding path program 2 times [2024-10-24 23:12:59,633 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 23:12:59,633 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1044634420] [2024-10-24 23:12:59,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 23:12:59,634 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 23:12:59,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 23:13:00,036 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-10-24 23:13:00,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 23:13:00,041 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-24 23:13:00,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 23:13:00,051 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-24 23:13:00,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 23:13:00,198 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-10-24 23:13:00,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 23:13:00,202 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-10-24 23:13:00,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 23:13:00,207 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 5 proven. 28 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-10-24 23:13:00,208 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 23:13:00,208 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1044634420] [2024-10-24 23:13:00,208 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1044634420] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 23:13:00,208 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1601443652] [2024-10-24 23:13:00,208 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-24 23:13:00,208 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 23:13:00,208 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 23:13:00,209 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) [2024-10-24 23:13:00,210 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-10-24 23:13:00,480 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-10-24 23:13:00,480 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-24 23:13:00,481 INFO L255 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-24 23:13:00,484 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 23:13:00,489 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 [2024-10-24 23:13:00,498 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2024-10-24 23:13:00,498 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 23:13:00,498 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1601443652] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 23:13:00,498 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-24 23:13:00,498 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [11] total 12 [2024-10-24 23:13:00,498 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [648566258] [2024-10-24 23:13:00,498 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 23:13:00,499 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 23:13:00,499 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 23:13:00,499 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 23:13:00,499 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2024-10-24 23:13:00,499 INFO L87 Difference]: Start difference. First operand 2923 states and 4070 transitions. Second operand has 3 states, 2 states have (on average 52.0) internal successors, (104), 3 states have internal predecessors, (104), 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) [2024-10-24 23:13:00,554 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 23:13:00,555 INFO L93 Difference]: Finished difference Result 2923 states and 4070 transitions. [2024-10-24 23:13:00,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 23:13:00,555 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 52.0) internal successors, (104), 3 states have internal predecessors, (104), 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 130 [2024-10-24 23:13:00,555 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 23:13:00,560 INFO L225 Difference]: With dead ends: 2923 [2024-10-24 23:13:00,561 INFO L226 Difference]: Without dead ends: 2922 [2024-10-24 23:13:00,561 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 147 GetRequests, 137 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2024-10-24 23:13:00,561 INFO L432 NwaCegarLoop]: 578 mSDtfsCounter, 1 mSDsluCounter, 577 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 1155 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-24 23:13:00,562 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 1155 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 23:13:00,563 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2922 states. [2024-10-24 23:13:00,672 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2922 to 2922. [2024-10-24 23:13:00,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2922 states, 2784 states have (on average 1.3954741379310345) internal successors, (3885), 2796 states have internal predecessors, (3885), 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) [2024-10-24 23:13:00,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2922 states to 2922 states and 4064 transitions. [2024-10-24 23:13:00,690 INFO L78 Accepts]: Start accepts. Automaton has 2922 states and 4064 transitions. Word has length 130 [2024-10-24 23:13:00,692 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 23:13:00,692 INFO L471 AbstractCegarLoop]: Abstraction has 2922 states and 4064 transitions. [2024-10-24 23:13:00,692 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 52.0) internal successors, (104), 3 states have internal predecessors, (104), 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) [2024-10-24 23:13:00,692 INFO L276 IsEmpty]: Start isEmpty. Operand 2922 states and 4064 transitions. [2024-10-24 23:13:00,693 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2024-10-24 23:13:00,693 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 23:13:00,696 INFO L215 NwaCegarLoop]: trace histogram [6, 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] [2024-10-24 23:13:00,716 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2024-10-24 23:13:00,896 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2024-10-24 23:13:00,897 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-10-24 23:13:00,898 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 23:13:00,898 INFO L85 PathProgramCache]: Analyzing trace with hash -226440272, now seen corresponding path program 1 times [2024-10-24 23:13:00,898 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 23:13:00,898 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1898587631] [2024-10-24 23:13:00,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 23:13:00,899 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 23:13:00,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 23:13:01,183 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-10-24 23:13:01,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 23:13:01,187 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-24 23:13:01,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 23:13:01,194 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-24 23:13:01,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 23:13:01,320 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-10-24 23:13:01,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 23:13:01,325 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-10-24 23:13:01,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 23:13:01,330 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 6 proven. 28 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-10-24 23:13:01,331 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 23:13:01,331 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1898587631] [2024-10-24 23:13:01,331 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1898587631] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 23:13:01,331 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [347319750] [2024-10-24 23:13:01,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 23:13:01,331 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 23:13:01,331 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 23:13:01,332 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) [2024-10-24 23:13:01,333 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-10-24 23:13:01,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 23:13:01,691 INFO L255 TraceCheckSpWp]: Trace formula consists of 859 conjuncts, 29 conjuncts are in the unsatisfiable core [2024-10-24 23:13:01,694 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 23:13:01,852 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 31 proven. 10 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-10-24 23:13:01,852 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-24 23:13:02,051 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 6 proven. 28 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-10-24 23:13:02,051 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [347319750] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-24 23:13:02,051 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-24 23:13:02,051 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 14, 9] total 28 [2024-10-24 23:13:02,051 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1077499486] [2024-10-24 23:13:02,051 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-24 23:13:02,052 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2024-10-24 23:13:02,052 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 23:13:02,052 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2024-10-24 23:13:02,053 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=130, Invalid=626, Unknown=0, NotChecked=0, Total=756 [2024-10-24 23:13:02,053 INFO L87 Difference]: Start difference. First operand 2922 states and 4064 transitions. Second operand has 28 states, 26 states have (on average 5.884615384615385) internal successors, (153), 26 states have internal predecessors, (153), 3 states have call successors, (12), 4 states have call predecessors, (12), 6 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2024-10-24 23:13:03,664 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 23:13:03,664 INFO L93 Difference]: Finished difference Result 5803 states and 8117 transitions. [2024-10-24 23:13:03,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2024-10-24 23:13:03,665 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 26 states have (on average 5.884615384615385) internal successors, (153), 26 states have internal predecessors, (153), 3 states have call successors, (12), 4 states have call predecessors, (12), 6 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) Word has length 131 [2024-10-24 23:13:03,668 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 23:13:03,680 INFO L225 Difference]: With dead ends: 5803 [2024-10-24 23:13:03,685 INFO L226 Difference]: Without dead ends: 2983 [2024-10-24 23:13:03,695 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 314 GetRequests, 257 SyntacticMatches, 0 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 687 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=534, Invalid=2888, Unknown=0, NotChecked=0, Total=3422 [2024-10-24 23:13:03,696 INFO L432 NwaCegarLoop]: 540 mSDtfsCounter, 117 mSDsluCounter, 7812 mSDsCounter, 0 mSdLazyCounter, 1217 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 117 SdHoareTripleChecker+Valid, 8352 SdHoareTripleChecker+Invalid, 1269 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 1217 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-10-24 23:13:03,696 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [117 Valid, 8352 Invalid, 1269 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 1217 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-10-24 23:13:03,704 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2983 states. [2024-10-24 23:13:03,780 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2983 to 2967. [2024-10-24 23:13:03,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2967 states, 2829 states have (on average 1.3902439024390243) internal successors, (3933), 2841 states have internal predecessors, (3933), 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) [2024-10-24 23:13:03,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2967 states to 2967 states and 4112 transitions. [2024-10-24 23:13:03,788 INFO L78 Accepts]: Start accepts. Automaton has 2967 states and 4112 transitions. Word has length 131 [2024-10-24 23:13:03,789 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 23:13:03,789 INFO L471 AbstractCegarLoop]: Abstraction has 2967 states and 4112 transitions. [2024-10-24 23:13:03,789 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 26 states have (on average 5.884615384615385) internal successors, (153), 26 states have internal predecessors, (153), 3 states have call successors, (12), 4 states have call predecessors, (12), 6 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2024-10-24 23:13:03,789 INFO L276 IsEmpty]: Start isEmpty. Operand 2967 states and 4112 transitions. [2024-10-24 23:13:03,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2024-10-24 23:13:03,790 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 23:13:03,790 INFO L215 NwaCegarLoop]: trace histogram [15, 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] [2024-10-24 23:13:03,807 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2024-10-24 23:13:03,994 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,SelfDestructingSolverStorable17 [2024-10-24 23:13:03,994 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-10-24 23:13:03,994 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 23:13:03,994 INFO L85 PathProgramCache]: Analyzing trace with hash 1298997753, now seen corresponding path program 2 times [2024-10-24 23:13:03,994 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 23:13:03,994 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2023994728] [2024-10-24 23:13:03,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 23:13:03,995 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 23:13:04,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 23:13:04,493 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-10-24 23:13:04,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 23:13:04,498 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-24 23:13:04,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 23:13:04,506 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-24 23:13:04,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 23:13:04,850 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-10-24 23:13:04,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 23:13:04,857 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-10-24 23:13:04,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 23:13:04,867 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 6 proven. 124 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-10-24 23:13:04,867 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 23:13:04,867 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2023994728] [2024-10-24 23:13:04,867 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2023994728] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 23:13:04,867 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [724205893] [2024-10-24 23:13:04,867 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-24 23:13:04,868 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 23:13:04,868 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 23:13:04,869 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) [2024-10-24 23:13:04,870 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-10-24 23:13:05,672 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-10-24 23:13:05,673 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-24 23:13:05,679 INFO L255 TraceCheckSpWp]: Trace formula consists of 994 conjuncts, 35 conjuncts are in the unsatisfiable core [2024-10-24 23:13:05,682 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 23:13:05,684 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 [2024-10-24 23:13:05,724 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 [2024-10-24 23:13:05,747 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2024-10-24 23:13:06,506 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 146 trivial. 0 not checked. [2024-10-24 23:13:06,507 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 23:13:06,507 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [724205893] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 23:13:06,507 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-24 23:13:06,507 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [17] total 28 [2024-10-24 23:13:06,507 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1151689510] [2024-10-24 23:13:06,507 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 23:13:06,508 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-10-24 23:13:06,508 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 23:13:06,509 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-10-24 23:13:06,510 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=675, Unknown=0, NotChecked=0, Total=756 [2024-10-24 23:13:06,510 INFO L87 Difference]: Start difference. First operand 2967 states and 4112 transitions. Second operand has 13 states, 13 states have (on average 8.307692307692308) internal successors, (108), 12 states have internal predecessors, (108), 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) [2024-10-24 23:13:08,222 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 23:13:08,223 INFO L93 Difference]: Finished difference Result 7065 states and 9865 transitions. [2024-10-24 23:13:08,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-10-24 23:13:08,223 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 8.307692307692308) internal successors, (108), 12 states have internal predecessors, (108), 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 140 [2024-10-24 23:13:08,223 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 23:13:08,231 INFO L225 Difference]: With dead ends: 7065 [2024-10-24 23:13:08,232 INFO L226 Difference]: Without dead ends: 4148 [2024-10-24 23:13:08,235 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 172 GetRequests, 136 SyntacticMatches, 1 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=176, Invalid=1156, Unknown=0, NotChecked=0, Total=1332 [2024-10-24 23:13:08,236 INFO L432 NwaCegarLoop]: 530 mSDtfsCounter, 716 mSDsluCounter, 3801 mSDsCounter, 0 mSdLazyCounter, 1073 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 728 SdHoareTripleChecker+Valid, 4331 SdHoareTripleChecker+Invalid, 1083 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 1073 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-10-24 23:13:08,236 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [728 Valid, 4331 Invalid, 1083 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 1073 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-10-24 23:13:08,238 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4148 states. [2024-10-24 23:13:08,319 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4148 to 3043. [2024-10-24 23:13:08,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3043 states, 2905 states have (on average 1.3865748709122203) internal successors, (4028), 2917 states have internal predecessors, (4028), 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) [2024-10-24 23:13:08,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3043 states to 3043 states and 4207 transitions. [2024-10-24 23:13:08,326 INFO L78 Accepts]: Start accepts. Automaton has 3043 states and 4207 transitions. Word has length 140 [2024-10-24 23:13:08,326 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 23:13:08,326 INFO L471 AbstractCegarLoop]: Abstraction has 3043 states and 4207 transitions. [2024-10-24 23:13:08,327 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 8.307692307692308) internal successors, (108), 12 states have internal predecessors, (108), 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) [2024-10-24 23:13:08,327 INFO L276 IsEmpty]: Start isEmpty. Operand 3043 states and 4207 transitions. [2024-10-24 23:13:08,327 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2024-10-24 23:13:08,327 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 23:13:08,328 INFO L215 NwaCegarLoop]: trace histogram [15, 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] [2024-10-24 23:13:08,350 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2024-10-24 23:13:08,531 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 23:13:08,531 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-10-24 23:13:08,532 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 23:13:08,532 INFO L85 PathProgramCache]: Analyzing trace with hash -1473784498, now seen corresponding path program 1 times [2024-10-24 23:13:08,532 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 23:13:08,532 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1220551714] [2024-10-24 23:13:08,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 23:13:08,532 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 23:13:08,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 23:13:08,792 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-10-24 23:13:08,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 23:13:08,835 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-24 23:13:08,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 23:13:08,850 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-10-24 23:13:08,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 23:13:08,864 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-24 23:13:08,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 23:13:08,868 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-10-24 23:13:08,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 23:13:08,875 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 146 trivial. 0 not checked. [2024-10-24 23:13:08,876 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 23:13:08,876 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1220551714] [2024-10-24 23:13:08,876 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1220551714] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 23:13:08,876 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 23:13:08,876 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-10-24 23:13:08,876 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [526146682] [2024-10-24 23:13:08,876 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 23:13:08,876 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-24 23:13:08,876 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 23:13:08,877 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-24 23:13:08,877 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-10-24 23:13:08,877 INFO L87 Difference]: Start difference. First operand 3043 states and 4207 transitions. Second operand has 9 states, 9 states have (on average 12.11111111111111) internal successors, (109), 7 states have internal predecessors, (109), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-24 23:13:09,513 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 23:13:09,514 INFO L93 Difference]: Finished difference Result 6062 states and 8398 transitions. [2024-10-24 23:13:09,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-24 23:13:09,514 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.11111111111111) internal successors, (109), 7 states have internal predecessors, (109), 2 states have call successors, (5), 3 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 141 [2024-10-24 23:13:09,514 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 23:13:09,520 INFO L225 Difference]: With dead ends: 6062 [2024-10-24 23:13:09,521 INFO L226 Difference]: Without dead ends: 3078 [2024-10-24 23:13:09,524 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2024-10-24 23:13:09,524 INFO L432 NwaCegarLoop]: 535 mSDtfsCounter, 53 mSDsluCounter, 3229 mSDsCounter, 0 mSdLazyCounter, 837 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 3764 SdHoareTripleChecker+Invalid, 867 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 837 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-10-24 23:13:09,525 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [54 Valid, 3764 Invalid, 867 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 837 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-10-24 23:13:09,529 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3078 states. [2024-10-24 23:13:09,594 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3078 to 3071. [2024-10-24 23:13:09,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3071 states, 2933 states have (on average 1.3852710535288102) internal successors, (4063), 2945 states have internal predecessors, (4063), 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) [2024-10-24 23:13:09,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3071 states to 3071 states and 4242 transitions. [2024-10-24 23:13:09,601 INFO L78 Accepts]: Start accepts. Automaton has 3071 states and 4242 transitions. Word has length 141 [2024-10-24 23:13:09,601 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 23:13:09,601 INFO L471 AbstractCegarLoop]: Abstraction has 3071 states and 4242 transitions. [2024-10-24 23:13:09,601 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.11111111111111) internal successors, (109), 7 states have internal predecessors, (109), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-24 23:13:09,601 INFO L276 IsEmpty]: Start isEmpty. Operand 3071 states and 4242 transitions. [2024-10-24 23:13:09,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2024-10-24 23:13:09,602 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 23:13:09,602 INFO L215 NwaCegarLoop]: trace histogram [15, 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] [2024-10-24 23:13:09,602 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-10-24 23:13:09,602 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-10-24 23:13:09,603 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 23:13:09,603 INFO L85 PathProgramCache]: Analyzing trace with hash -1520772203, now seen corresponding path program 1 times [2024-10-24 23:13:09,603 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 23:13:09,603 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1939633241] [2024-10-24 23:13:09,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 23:13:09,603 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 23:13:09,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 23:13:09,869 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-10-24 23:13:09,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 23:13:09,873 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-24 23:13:09,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 23:13:09,883 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-10-24 23:13:09,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 23:13:09,898 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-24 23:13:09,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 23:13:09,901 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-10-24 23:13:09,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 23:13:09,915 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 146 trivial. 0 not checked. [2024-10-24 23:13:09,915 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 23:13:09,916 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1939633241] [2024-10-24 23:13:09,916 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1939633241] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 23:13:09,916 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 23:13:09,916 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-24 23:13:09,916 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1298599628] [2024-10-24 23:13:09,916 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 23:13:09,916 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-24 23:13:09,916 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 23:13:09,916 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-24 23:13:09,916 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-10-24 23:13:09,917 INFO L87 Difference]: Start difference. First operand 3071 states and 4242 transitions. Second operand has 8 states, 8 states have (on average 13.625) internal successors, (109), 6 states have internal predecessors, (109), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-24 23:13:10,815 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 23:13:10,815 INFO L93 Difference]: Finished difference Result 6107 states and 8453 transitions. [2024-10-24 23:13:10,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-24 23:13:10,815 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 13.625) internal successors, (109), 6 states have internal predecessors, (109), 2 states have call successors, (5), 3 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 141 [2024-10-24 23:13:10,815 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 23:13:10,822 INFO L225 Difference]: With dead ends: 6107 [2024-10-24 23:13:10,822 INFO L226 Difference]: Without dead ends: 3092 [2024-10-24 23:13:10,826 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-10-24 23:13:10,826 INFO L432 NwaCegarLoop]: 547 mSDtfsCounter, 48 mSDsluCounter, 2793 mSDsCounter, 0 mSdLazyCounter, 695 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 3340 SdHoareTripleChecker+Invalid, 725 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 695 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-10-24 23:13:10,827 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [49 Valid, 3340 Invalid, 725 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 695 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-10-24 23:13:10,828 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3092 states. [2024-10-24 23:13:10,945 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3092 to 3092. [2024-10-24 23:13:10,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3092 states, 2954 states have (on average 1.3825321597833446) internal successors, (4084), 2966 states have internal predecessors, (4084), 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) [2024-10-24 23:13:10,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3092 states to 3092 states and 4263 transitions. [2024-10-24 23:13:10,953 INFO L78 Accepts]: Start accepts. Automaton has 3092 states and 4263 transitions. Word has length 141 [2024-10-24 23:13:10,953 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 23:13:10,953 INFO L471 AbstractCegarLoop]: Abstraction has 3092 states and 4263 transitions. [2024-10-24 23:13:10,953 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 13.625) internal successors, (109), 6 states have internal predecessors, (109), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-24 23:13:10,953 INFO L276 IsEmpty]: Start isEmpty. Operand 3092 states and 4263 transitions. [2024-10-24 23:13:10,954 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2024-10-24 23:13:10,954 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 23:13:10,954 INFO L215 NwaCegarLoop]: trace histogram [15, 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] [2024-10-24 23:13:10,954 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-10-24 23:13:10,954 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-10-24 23:13:10,955 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 23:13:10,955 INFO L85 PathProgramCache]: Analyzing trace with hash 1234982829, now seen corresponding path program 1 times [2024-10-24 23:13:10,955 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 23:13:10,955 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1965794444] [2024-10-24 23:13:10,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 23:13:10,955 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 23:13:11,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 23:13:11,450 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 23:13:11,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 23:13:11,454 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-24 23:13:11,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 23:13:11,467 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-10-24 23:13:11,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 23:13:11,911 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-10-24 23:13:11,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 23:13:11,916 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-10-24 23:13:11,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 23:13:11,924 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 6 proven. 124 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-10-24 23:13:11,925 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 23:13:11,925 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1965794444] [2024-10-24 23:13:11,925 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1965794444] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 23:13:11,925 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1163352299] [2024-10-24 23:13:11,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 23:13:11,925 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 23:13:11,925 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 23:13:11,930 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) [2024-10-24 23:13:11,931 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-10-24 23:13:12,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 23:13:12,453 INFO L255 TraceCheckSpWp]: Trace formula consists of 996 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-10-24 23:13:12,456 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 23:13:12,589 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 146 trivial. 0 not checked. [2024-10-24 23:13:12,589 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 23:13:12,590 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1163352299] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 23:13:12,590 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-24 23:13:12,590 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [17] total 22 [2024-10-24 23:13:12,590 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [580356031] [2024-10-24 23:13:12,590 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 23:13:12,590 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 23:13:12,590 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 23:13:12,591 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 23:13:12,591 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=411, Unknown=0, NotChecked=0, Total=462 [2024-10-24 23:13:12,591 INFO L87 Difference]: Start difference. First operand 3092 states and 4263 transitions. Second operand has 7 states, 7 states have (on average 15.714285714285714) internal successors, (110), 7 states have internal predecessors, (110), 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) [2024-10-24 23:13:13,025 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 23:13:13,025 INFO L93 Difference]: Finished difference Result 6153 states and 8500 transitions. [2024-10-24 23:13:13,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-24 23:13:13,025 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 15.714285714285714) internal successors, (110), 7 states have internal predecessors, (110), 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 142 [2024-10-24 23:13:13,025 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 23:13:13,037 INFO L225 Difference]: With dead ends: 6153 [2024-10-24 23:13:13,037 INFO L226 Difference]: Without dead ends: 3113 [2024-10-24 23:13:13,048 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 167 GetRequests, 145 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=59, Invalid=493, Unknown=0, NotChecked=0, Total=552 [2024-10-24 23:13:13,049 INFO L432 NwaCegarLoop]: 562 mSDtfsCounter, 43 mSDsluCounter, 2511 mSDsCounter, 0 mSdLazyCounter, 426 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 3073 SdHoareTripleChecker+Invalid, 431 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 426 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-24 23:13:13,049 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 3073 Invalid, 431 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 426 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-24 23:13:13,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3113 states. [2024-10-24 23:13:13,193 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3113 to 3030. [2024-10-24 23:13:13,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3030 states, 2892 states have (on average 1.3817427385892116) internal successors, (3996), 2904 states have internal predecessors, (3996), 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) [2024-10-24 23:13:13,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3030 states to 3030 states and 4175 transitions. [2024-10-24 23:13:13,213 INFO L78 Accepts]: Start accepts. Automaton has 3030 states and 4175 transitions. Word has length 142 [2024-10-24 23:13:13,214 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 23:13:13,214 INFO L471 AbstractCegarLoop]: Abstraction has 3030 states and 4175 transitions. [2024-10-24 23:13:13,214 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.714285714285714) internal successors, (110), 7 states have internal predecessors, (110), 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) [2024-10-24 23:13:13,214 INFO L276 IsEmpty]: Start isEmpty. Operand 3030 states and 4175 transitions. [2024-10-24 23:13:13,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2024-10-24 23:13:13,215 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 23:13:13,215 INFO L215 NwaCegarLoop]: trace histogram [15, 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] [2024-10-24 23:13:13,229 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2024-10-24 23:13:13,415 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,SelfDestructingSolverStorable21 [2024-10-24 23:13:13,416 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)] === [2024-10-24 23:13:13,416 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 23:13:13,416 INFO L85 PathProgramCache]: Analyzing trace with hash -950353898, now seen corresponding path program 1 times [2024-10-24 23:13:13,416 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 23:13:13,417 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1188291849] [2024-10-24 23:13:13,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 23:13:13,417 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 23:13:13,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 23:13:14,155 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 23:13:14,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 23:13:14,160 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-24 23:13:14,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 23:13:14,167 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-10-24 23:13:14,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 23:13:14,707 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-10-24 23:13:14,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 23:13:14,712 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-10-24 23:13:14,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 23:13:14,723 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 6 proven. 124 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-10-24 23:13:14,723 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 23:13:14,723 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1188291849] [2024-10-24 23:13:14,723 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1188291849] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 23:13:14,724 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1195095918] [2024-10-24 23:13:14,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 23:13:14,724 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 23:13:14,724 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 23:13:14,727 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) [2024-10-24 23:13:14,728 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-10-24 23:13:15,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 23:13:15,424 INFO L255 TraceCheckSpWp]: Trace formula consists of 993 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-10-24 23:13:15,430 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 23:13:24,823 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 146 trivial. 0 not checked. [2024-10-24 23:13:24,823 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 23:13:24,823 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1195095918] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 23:13:24,823 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-24 23:13:24,823 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [17] total 22 [2024-10-24 23:13:24,823 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [112977377] [2024-10-24 23:13:24,824 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 23:13:24,824 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 23:13:24,824 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 23:13:24,824 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 23:13:24,824 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=411, Unknown=0, NotChecked=0, Total=462 [2024-10-24 23:13:24,824 INFO L87 Difference]: Start difference. First operand 3030 states and 4175 transitions. Second operand has 7 states, 7 states have (on average 15.714285714285714) internal successors, (110), 7 states have internal predecessors, (110), 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) [2024-10-24 23:13:29,173 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-10-24 23:13:31,289 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-10-24 23:13:33,023 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.73s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-10-24 23:13:37,419 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-10-24 23:13:37,795 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 23:13:37,795 INFO L93 Difference]: Finished difference Result 6031 states and 8330 transitions. [2024-10-24 23:13:37,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-24 23:13:37,796 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 15.714285714285714) internal successors, (110), 7 states have internal predecessors, (110), 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 142 [2024-10-24 23:13:37,796 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 23:13:37,803 INFO L225 Difference]: With dead ends: 6031 [2024-10-24 23:13:37,803 INFO L226 Difference]: Without dead ends: 3065 [2024-10-24 23:13:37,806 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 165 GetRequests, 145 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=51, Invalid=411, Unknown=0, NotChecked=0, Total=462 [2024-10-24 23:13:37,807 INFO L432 NwaCegarLoop]: 560 mSDtfsCounter, 12 mSDsluCounter, 2485 mSDsCounter, 0 mSdLazyCounter, 442 mSolverCounterSat, 1 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 3045 SdHoareTripleChecker+Invalid, 445 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 442 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.9s IncrementalHoareTripleChecker+Time [2024-10-24 23:13:37,808 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 3045 Invalid, 445 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 442 Invalid, 2 Unknown, 0 Unchecked, 12.9s Time] [2024-10-24 23:13:37,810 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3065 states. [2024-10-24 23:13:37,887 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3065 to 3030. [2024-10-24 23:13:37,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3030 states, 2892 states have (on average 1.3817427385892116) internal successors, (3996), 2904 states have internal predecessors, (3996), 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) [2024-10-24 23:13:37,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3030 states to 3030 states and 4175 transitions. [2024-10-24 23:13:37,896 INFO L78 Accepts]: Start accepts. Automaton has 3030 states and 4175 transitions. Word has length 142 [2024-10-24 23:13:37,896 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 23:13:37,896 INFO L471 AbstractCegarLoop]: Abstraction has 3030 states and 4175 transitions. [2024-10-24 23:13:37,898 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.714285714285714) internal successors, (110), 7 states have internal predecessors, (110), 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) [2024-10-24 23:13:37,898 INFO L276 IsEmpty]: Start isEmpty. Operand 3030 states and 4175 transitions. [2024-10-24 23:13:37,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2024-10-24 23:13:37,899 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 23:13:37,900 INFO L215 NwaCegarLoop]: trace histogram [15, 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] [2024-10-24 23:13:37,918 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2024-10-24 23:13:38,104 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 23:13:38,105 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)] === [2024-10-24 23:13:38,105 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 23:13:38,105 INFO L85 PathProgramCache]: Analyzing trace with hash -170657270, now seen corresponding path program 1 times [2024-10-24 23:13:38,105 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 23:13:38,106 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1896153422] [2024-10-24 23:13:38,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 23:13:38,106 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 23:13:38,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 23:13:38,690 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-10-24 23:13:38,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 23:13:38,695 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-24 23:13:38,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 23:13:38,702 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-10-24 23:13:38,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 23:13:39,022 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-24 23:13:39,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 23:13:39,027 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-24 23:13:39,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 23:13:39,035 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 6 proven. 124 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-10-24 23:13:39,035 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 23:13:39,035 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1896153422] [2024-10-24 23:13:39,035 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1896153422] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 23:13:39,035 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1962258386] [2024-10-24 23:13:39,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 23:13:39,035 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 23:13:39,036 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 23:13:39,038 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) [2024-10-24 23:13:39,042 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2024-10-24 23:13:39,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 23:13:39,728 INFO L255 TraceCheckSpWp]: Trace formula consists of 995 conjuncts, 38 conjuncts are in the unsatisfiable core [2024-10-24 23:13:39,730 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 23:13:40,090 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 82 proven. 55 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-10-24 23:13:40,090 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-24 23:13:40,658 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 6 proven. 124 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-10-24 23:13:40,659 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1962258386] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-24 23:13:40,659 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-24 23:13:40,659 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 19, 15] total 45 [2024-10-24 23:13:40,659 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1973192633] [2024-10-24 23:13:40,659 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-24 23:13:40,660 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 45 states [2024-10-24 23:13:40,660 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 23:13:40,660 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 45 interpolants. [2024-10-24 23:13:40,661 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=386, Invalid=1594, Unknown=0, NotChecked=0, Total=1980 [2024-10-24 23:13:40,661 INFO L87 Difference]: Start difference. First operand 3030 states and 4175 transitions. Second operand has 45 states, 43 states have (on average 4.023255813953488) internal successors, (173), 43 states have internal predecessors, (173), 3 states have call successors, (12), 4 states have call predecessors, (12), 6 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2024-10-24 23:13:45,436 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 23:13:45,436 INFO L93 Difference]: Finished difference Result 6061 states and 8438 transitions. [2024-10-24 23:13:45,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2024-10-24 23:13:45,436 INFO L78 Accepts]: Start accepts. Automaton has has 45 states, 43 states have (on average 4.023255813953488) internal successors, (173), 43 states have internal predecessors, (173), 3 states have call successors, (12), 4 states have call predecessors, (12), 6 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) Word has length 144 [2024-10-24 23:13:45,437 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 23:13:45,443 INFO L225 Difference]: With dead ends: 6061 [2024-10-24 23:13:45,444 INFO L226 Difference]: Without dead ends: 3148 [2024-10-24 23:13:45,448 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 364 GetRequests, 272 SyntacticMatches, 0 SemanticMatches, 92 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1952 ImplicationChecksByTransitivity, 4.3s TimeCoverageRelationStatistics Valid=1540, Invalid=7202, Unknown=0, NotChecked=0, Total=8742 [2024-10-24 23:13:45,448 INFO L432 NwaCegarLoop]: 551 mSDtfsCounter, 120 mSDsluCounter, 10149 mSDsCounter, 0 mSdLazyCounter, 1725 mSolverCounterSat, 72 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 120 SdHoareTripleChecker+Valid, 10700 SdHoareTripleChecker+Invalid, 1797 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 72 IncrementalHoareTripleChecker+Valid, 1725 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-10-24 23:13:45,448 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [120 Valid, 10700 Invalid, 1797 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [72 Valid, 1725 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-10-24 23:13:45,450 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3148 states. [2024-10-24 23:13:45,536 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3148 to 3120. [2024-10-24 23:13:45,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3120 states, 2982 states have (on average 1.3722334004024146) internal successors, (4092), 2994 states have internal predecessors, (4092), 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) [2024-10-24 23:13:45,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3120 states to 3120 states and 4271 transitions. [2024-10-24 23:13:45,544 INFO L78 Accepts]: Start accepts. Automaton has 3120 states and 4271 transitions. Word has length 144 [2024-10-24 23:13:45,544 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 23:13:45,544 INFO L471 AbstractCegarLoop]: Abstraction has 3120 states and 4271 transitions. [2024-10-24 23:13:45,545 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 45 states, 43 states have (on average 4.023255813953488) internal successors, (173), 43 states have internal predecessors, (173), 3 states have call successors, (12), 4 states have call predecessors, (12), 6 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2024-10-24 23:13:45,545 INFO L276 IsEmpty]: Start isEmpty. Operand 3120 states and 4271 transitions. [2024-10-24 23:13:45,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2024-10-24 23:13:45,545 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 23:13:45,546 INFO L215 NwaCegarLoop]: trace histogram [33, 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] [2024-10-24 23:13:45,568 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2024-10-24 23:13:45,749 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 23:13:45,750 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)] === [2024-10-24 23:13:45,750 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 23:13:45,750 INFO L85 PathProgramCache]: Analyzing trace with hash 267688362, now seen corresponding path program 2 times [2024-10-24 23:13:45,750 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 23:13:45,750 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [924899004] [2024-10-24 23:13:45,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 23:13:45,751 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 23:13:45,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 23:13:46,510 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-10-24 23:13:46,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 23:13:46,514 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-24 23:13:46,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 23:13:46,533 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-10-24 23:13:46,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 23:13:47,477 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-10-24 23:13:47,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 23:13:47,482 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-10-24 23:13:47,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 23:13:47,501 INFO L134 CoverageAnalysis]: Checked inductivity of 611 backedges. 6 proven. 532 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked. [2024-10-24 23:13:47,501 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 23:13:47,501 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [924899004] [2024-10-24 23:13:47,502 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [924899004] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 23:13:47,502 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [978216786] [2024-10-24 23:13:47,502 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-24 23:13:47,502 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 23:13:47,502 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 23:13:47,504 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) [2024-10-24 23:13:47,507 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2024-10-24 23:13:48,136 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-10-24 23:13:48,136 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-24 23:13:48,142 INFO L255 TraceCheckSpWp]: Trace formula consists of 1265 conjuncts, 72 conjuncts are in the unsatisfiable core [2024-10-24 23:13:48,144 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 23:13:49,331 INFO L134 CoverageAnalysis]: Checked inductivity of 611 backedges. 17 proven. 534 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-10-24 23:13:49,331 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-24 23:13:50,383 INFO L134 CoverageAnalysis]: Checked inductivity of 611 backedges. 285 proven. 66 refuted. 0 times theorem prover too weak. 260 trivial. 0 not checked. [2024-10-24 23:13:50,383 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [978216786] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-24 23:13:50,383 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-24 23:13:50,383 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [29, 32, 16] total 72 [2024-10-24 23:13:50,383 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1409686869] [2024-10-24 23:13:50,383 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-24 23:13:50,384 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 72 states [2024-10-24 23:13:50,387 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 23:13:50,388 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 72 interpolants. [2024-10-24 23:13:50,390 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=525, Invalid=4587, Unknown=0, NotChecked=0, Total=5112 [2024-10-24 23:13:50,390 INFO L87 Difference]: Start difference. First operand 3120 states and 4271 transitions. Second operand has 72 states, 69 states have (on average 2.8115942028985508) internal successors, (194), 70 states have internal predecessors, (194), 3 states have call successors, (10), 3 states have call predecessors, (10), 7 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12)