./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_BER_test6-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version fca748b1 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_BER_test6-1.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 05edfd344a133924af20e7887ded3d695179bf474d7b39ea2b7287f4a108ff8d --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dd.update-z3-fca748b-m [2024-11-20 21:25:59,309 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-20 21:25:59,378 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-20 21:25:59,383 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-20 21:25:59,385 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-20 21:25:59,411 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-20 21:25:59,413 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-20 21:25:59,413 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-20 21:25:59,414 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-20 21:25:59,415 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-20 21:25:59,416 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-20 21:25:59,416 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-20 21:25:59,417 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-20 21:25:59,417 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-20 21:25:59,419 INFO L153 SettingsManager]: * Use SBE=true [2024-11-20 21:25:59,419 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-20 21:25:59,419 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-20 21:25:59,420 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-20 21:25:59,420 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-20 21:25:59,420 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-20 21:25:59,420 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-20 21:25:59,424 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-20 21:25:59,425 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-20 21:25:59,425 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-20 21:25:59,425 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-20 21:25:59,425 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-20 21:25:59,426 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-20 21:25:59,426 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-20 21:25:59,426 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-20 21:25:59,426 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-20 21:25:59,427 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-20 21:25:59,427 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-20 21:25:59,427 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-20 21:25:59,427 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-20 21:25:59,428 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-20 21:25:59,428 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-20 21:25:59,428 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-20 21:25:59,428 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-20 21:25:59,429 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-20 21:25:59,429 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-20 21:25:59,429 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-20 21:25:59,430 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-20 21:25:59,430 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-20 21:25:59,431 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-20 21:25:59,431 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 05edfd344a133924af20e7887ded3d695179bf474d7b39ea2b7287f4a108ff8d [2024-11-20 21:25:59,707 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-20 21:25:59,730 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-20 21:25:59,733 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-20 21:25:59,734 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-20 21:25:59,735 INFO L274 PluginConnector]: CDTParser initialized [2024-11-20 21:25:59,736 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test6-1.i [2024-11-20 21:26:01,101 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-20 21:26:01,478 INFO L384 CDTParser]: Found 1 translation units. [2024-11-20 21:26:01,479 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test6-1.i [2024-11-20 21:26:01,497 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fa401af2d/0543b11399fe477caec8935fb7ade6c3/FLAG19d50850c [2024-11-20 21:26:01,513 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fa401af2d/0543b11399fe477caec8935fb7ade6c3 [2024-11-20 21:26:01,516 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-20 21:26:01,517 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-20 21:26:01,519 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-20 21:26:01,519 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-20 21:26:01,526 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-20 21:26:01,527 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 09:26:01" (1/1) ... [2024-11-20 21:26:01,528 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6ec236a9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:26:01, skipping insertion in model container [2024-11-20 21:26:01,528 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 09:26:01" (1/1) ... [2024-11-20 21:26:01,588 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-20 21:26:02,187 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-20 21:26:02,203 INFO L200 MainTranslator]: Completed pre-run [2024-11-20 21:26:02,319 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-20 21:26:02,395 INFO L204 MainTranslator]: Completed translation [2024-11-20 21:26:02,396 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:26:02 WrapperNode [2024-11-20 21:26:02,396 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-20 21:26:02,397 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-20 21:26:02,397 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-20 21:26:02,397 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-20 21:26:02,404 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:26:02" (1/1) ... [2024-11-20 21:26:02,454 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:26:02" (1/1) ... [2024-11-20 21:26:02,529 INFO L138 Inliner]: procedures = 282, calls = 300, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 1487 [2024-11-20 21:26:02,529 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-20 21:26:02,530 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-20 21:26:02,530 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-20 21:26:02,530 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-20 21:26:02,546 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:26:02" (1/1) ... [2024-11-20 21:26:02,546 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:26:02" (1/1) ... [2024-11-20 21:26:02,561 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:26:02" (1/1) ... [2024-11-20 21:26:02,651 INFO L175 MemorySlicer]: Split 268 memory accesses to 4 slices as follows [2, 12, 220, 34]. 82 percent of accesses are in the largest equivalence class. The 12 initializations are split as follows [2, 10, 0, 0]. The 54 writes are split as follows [0, 1, 49, 4]. [2024-11-20 21:26:02,652 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:26:02" (1/1) ... [2024-11-20 21:26:02,652 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:26:02" (1/1) ... [2024-11-20 21:26:02,698 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:26:02" (1/1) ... [2024-11-20 21:26:02,721 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:26:02" (1/1) ... [2024-11-20 21:26:02,728 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:26:02" (1/1) ... [2024-11-20 21:26:02,734 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:26:02" (1/1) ... [2024-11-20 21:26:02,747 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-20 21:26:02,748 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-20 21:26:02,749 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-20 21:26:02,749 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-20 21:26:02,750 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:26:02" (1/1) ... [2024-11-20 21:26:02,755 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-20 21:26:02,766 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 21:26:02,785 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-20 21:26:02,791 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-20 21:26:02,833 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2024-11-20 21:26:02,833 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2024-11-20 21:26:02,833 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-20 21:26:02,834 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-20 21:26:02,834 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-20 21:26:02,834 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-20 21:26:02,834 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-11-20 21:26:02,834 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-20 21:26:02,834 INFO L130 BoogieDeclarations]: Found specification of procedure alt_bzero [2024-11-20 21:26:02,836 INFO L138 BoogieDeclarations]: Found implementation of procedure alt_bzero [2024-11-20 21:26:02,836 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-20 21:26:02,836 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-20 21:26:02,836 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-20 21:26:02,836 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-20 21:26:02,836 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-20 21:26:02,836 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-20 21:26:02,837 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-20 21:26:02,837 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-20 21:26:02,837 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-20 21:26:02,837 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-20 21:26:02,837 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-20 21:26:02,837 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-20 21:26:02,837 INFO L130 BoogieDeclarations]: Found specification of procedure alt_malloc [2024-11-20 21:26:02,837 INFO L138 BoogieDeclarations]: Found implementation of procedure alt_malloc [2024-11-20 21:26:02,838 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-20 21:26:02,838 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-20 21:26:02,838 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-20 21:26:02,838 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-11-20 21:26:02,838 INFO L130 BoogieDeclarations]: Found specification of procedure alt_free [2024-11-20 21:26:02,839 INFO L138 BoogieDeclarations]: Found implementation of procedure alt_free [2024-11-20 21:26:02,839 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-20 21:26:02,839 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-20 21:26:02,839 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-20 21:26:02,839 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-20 21:26:02,840 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-20 21:26:02,840 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-20 21:26:03,159 INFO L238 CfgBuilder]: Building ICFG [2024-11-20 21:26:03,165 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-20 21:26:04,575 INFO L? ?]: Removed 345 outVars from TransFormulas that were not future-live. [2024-11-20 21:26:04,576 INFO L287 CfgBuilder]: Performing block encoding [2024-11-20 21:26:04,603 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-20 21:26:04,603 INFO L316 CfgBuilder]: Removed 63 assume(true) statements. [2024-11-20 21:26:04,603 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 09:26:04 BoogieIcfgContainer [2024-11-20 21:26:04,604 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-20 21:26:04,605 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-20 21:26:04,606 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-20 21:26:04,609 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-20 21:26:04,610 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 09:26:01" (1/3) ... [2024-11-20 21:26:04,610 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@70248667 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 09:26:04, skipping insertion in model container [2024-11-20 21:26:04,610 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:26:02" (2/3) ... [2024-11-20 21:26:04,611 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@70248667 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 09:26:04, skipping insertion in model container [2024-11-20 21:26:04,611 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 09:26:04" (3/3) ... [2024-11-20 21:26:04,612 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_BER_test6-1.i [2024-11-20 21:26:04,628 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-20 21:26:04,629 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 14 error locations. [2024-11-20 21:26:04,708 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-20 21:26:04,716 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;@289054e2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-20 21:26:04,716 INFO L334 AbstractCegarLoop]: Starting to check reachability of 14 error locations. [2024-11-20 21:26:04,722 INFO L276 IsEmpty]: Start isEmpty. Operand has 462 states, 425 states have (on average 1.6070588235294119) internal successors, (683), 442 states have internal predecessors, (683), 18 states have call successors, (18), 5 states have call predecessors, (18), 5 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-11-20 21:26:04,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-20 21:26:04,731 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 21:26:04,732 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 21:26:04,733 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-20 21:26:04,741 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 21:26:04,741 INFO L85 PathProgramCache]: Analyzing trace with hash 1635847084, now seen corresponding path program 1 times [2024-11-20 21:26:04,751 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 21:26:04,751 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2002312690] [2024-11-20 21:26:04,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 21:26:04,752 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 21:26:04,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 21:26:04,955 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 21:26:04,955 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 21:26:04,956 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2002312690] [2024-11-20 21:26:04,957 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2002312690] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 21:26:04,957 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 21:26:04,957 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-20 21:26:04,959 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [213688278] [2024-11-20 21:26:04,960 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 21:26:04,965 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-20 21:26:04,965 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 21:26:04,986 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-20 21:26:04,987 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-20 21:26:04,990 INFO L87 Difference]: Start difference. First operand has 462 states, 425 states have (on average 1.6070588235294119) internal successors, (683), 442 states have internal predecessors, (683), 18 states have call successors, (18), 5 states have call predecessors, (18), 5 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) Second operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 21:26:05,082 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 21:26:05,082 INFO L93 Difference]: Finished difference Result 917 states and 1441 transitions. [2024-11-20 21:26:05,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-20 21:26:05,086 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2024-11-20 21:26:05,086 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 21:26:05,104 INFO L225 Difference]: With dead ends: 917 [2024-11-20 21:26:05,105 INFO L226 Difference]: Without dead ends: 443 [2024-11-20 21:26:05,112 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-20 21:26:05,118 INFO L432 NwaCegarLoop]: 641 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 641 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-20 21:26:05,119 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 641 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-20 21:26:05,142 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 443 states. [2024-11-20 21:26:05,180 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 443 to 443. [2024-11-20 21:26:05,182 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 443 states, 415 states have (on average 1.4481927710843374) internal successors, (601), 429 states have internal predecessors, (601), 10 states have call successors, (10), 4 states have call predecessors, (10), 4 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-11-20 21:26:05,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 443 states to 443 states and 621 transitions. [2024-11-20 21:26:05,189 INFO L78 Accepts]: Start accepts. Automaton has 443 states and 621 transitions. Word has length 8 [2024-11-20 21:26:05,190 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 21:26:05,190 INFO L471 AbstractCegarLoop]: Abstraction has 443 states and 621 transitions. [2024-11-20 21:26:05,190 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 21:26:05,191 INFO L276 IsEmpty]: Start isEmpty. Operand 443 states and 621 transitions. [2024-11-20 21:26:05,191 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-20 21:26:05,191 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 21:26:05,191 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 21:26:05,192 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-20 21:26:05,192 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-20 21:26:05,193 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 21:26:05,193 INFO L85 PathProgramCache]: Analyzing trace with hash 1635849006, now seen corresponding path program 1 times [2024-11-20 21:26:05,193 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 21:26:05,193 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1294566247] [2024-11-20 21:26:05,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 21:26:05,194 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 21:26:05,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-20 21:26:05,265 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1963451157] [2024-11-20 21:26:05,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 21:26:05,265 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 21:26:05,266 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 21:26:05,268 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-20 21:26:05,270 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-20 21:26:05,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 21:26:05,456 INFO L255 TraceCheckSpWp]: Trace formula consists of 120 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-20 21:26:05,462 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 21:26:05,515 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-11-20 21:26:05,563 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 21:26:05,563 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-20 21:26:05,564 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 21:26:05,564 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1294566247] [2024-11-20 21:26:05,565 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-20 21:26:05,565 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1963451157] [2024-11-20 21:26:05,566 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1963451157] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 21:26:05,566 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 21:26:05,567 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-20 21:26:05,567 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1178122196] [2024-11-20 21:26:05,568 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 21:26:05,568 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-20 21:26:05,568 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 21:26:05,570 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-20 21:26:05,570 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-20 21:26:05,571 INFO L87 Difference]: Start difference. First operand 443 states and 621 transitions. Second operand has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 21:26:05,766 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 21:26:05,767 INFO L93 Difference]: Finished difference Result 852 states and 1209 transitions. [2024-11-20 21:26:05,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-20 21:26:05,768 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2024-11-20 21:26:05,768 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 21:26:05,772 INFO L225 Difference]: With dead ends: 852 [2024-11-20 21:26:05,773 INFO L226 Difference]: Without dead ends: 850 [2024-11-20 21:26:05,774 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-20 21:26:05,776 INFO L432 NwaCegarLoop]: 597 mSDtfsCounter, 562 mSDsluCounter, 1183 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 571 SdHoareTripleChecker+Valid, 1780 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-20 21:26:05,777 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [571 Valid, 1780 Invalid, 84 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-20 21:26:05,781 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 850 states. [2024-11-20 21:26:05,814 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 850 to 450. [2024-11-20 21:26:05,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 450 states, 422 states have (on average 1.4431279620853081) internal successors, (609), 436 states have internal predecessors, (609), 10 states have call successors, (10), 4 states have call predecessors, (10), 4 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-11-20 21:26:05,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 450 states to 450 states and 629 transitions. [2024-11-20 21:26:05,818 INFO L78 Accepts]: Start accepts. Automaton has 450 states and 629 transitions. Word has length 8 [2024-11-20 21:26:05,819 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 21:26:05,819 INFO L471 AbstractCegarLoop]: Abstraction has 450 states and 629 transitions. [2024-11-20 21:26:05,819 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 21:26:05,819 INFO L276 IsEmpty]: Start isEmpty. Operand 450 states and 629 transitions. [2024-11-20 21:26:05,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2024-11-20 21:26:05,822 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 21:26:05,822 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 21:26:05,831 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-20 21:26:06,026 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 21:26:06,026 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-20 21:26:06,027 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 21:26:06,027 INFO L85 PathProgramCache]: Analyzing trace with hash 185472285, now seen corresponding path program 1 times [2024-11-20 21:26:06,028 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 21:26:06,028 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1299833573] [2024-11-20 21:26:06,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 21:26:06,028 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 21:26:06,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 21:26:06,327 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 21:26:06,328 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 21:26:06,328 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1299833573] [2024-11-20 21:26:06,328 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1299833573] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 21:26:06,328 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 21:26:06,328 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-20 21:26:06,328 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [382016662] [2024-11-20 21:26:06,329 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 21:26:06,329 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-20 21:26:06,329 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 21:26:06,332 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-20 21:26:06,332 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-20 21:26:06,332 INFO L87 Difference]: Start difference. First operand 450 states and 629 transitions. Second operand has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 21:26:06,415 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 21:26:06,415 INFO L93 Difference]: Finished difference Result 894 states and 1251 transitions. [2024-11-20 21:26:06,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-20 21:26:06,417 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 64 [2024-11-20 21:26:06,417 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 21:26:06,419 INFO L225 Difference]: With dead ends: 894 [2024-11-20 21:26:06,419 INFO L226 Difference]: Without dead ends: 453 [2024-11-20 21:26:06,420 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-20 21:26:06,423 INFO L432 NwaCegarLoop]: 593 mSDtfsCounter, 105 mSDsluCounter, 1093 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 105 SdHoareTripleChecker+Valid, 1686 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-20 21:26:06,424 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [105 Valid, 1686 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-20 21:26:06,426 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 453 states. [2024-11-20 21:26:06,435 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 453 to 450. [2024-11-20 21:26:06,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 450 states, 422 states have (on average 1.4265402843601895) internal successors, (602), 436 states have internal predecessors, (602), 10 states have call successors, (10), 4 states have call predecessors, (10), 4 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-11-20 21:26:06,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 450 states to 450 states and 622 transitions. [2024-11-20 21:26:06,441 INFO L78 Accepts]: Start accepts. Automaton has 450 states and 622 transitions. Word has length 64 [2024-11-20 21:26:06,442 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 21:26:06,442 INFO L471 AbstractCegarLoop]: Abstraction has 450 states and 622 transitions. [2024-11-20 21:26:06,443 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 21:26:06,443 INFO L276 IsEmpty]: Start isEmpty. Operand 450 states and 622 transitions. [2024-11-20 21:26:06,445 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2024-11-20 21:26:06,448 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 21:26:06,448 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 21:26:06,448 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-20 21:26:06,449 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-20 21:26:06,449 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 21:26:06,449 INFO L85 PathProgramCache]: Analyzing trace with hash -878727663, now seen corresponding path program 1 times [2024-11-20 21:26:06,449 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 21:26:06,450 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1473047261] [2024-11-20 21:26:06,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 21:26:06,450 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 21:26:06,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 21:26:06,778 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 21:26:06,778 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 21:26:06,779 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1473047261] [2024-11-20 21:26:06,779 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1473047261] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 21:26:06,780 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 21:26:06,780 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-20 21:26:06,780 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1969120455] [2024-11-20 21:26:06,780 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 21:26:06,781 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-20 21:26:06,782 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 21:26:06,783 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-20 21:26:06,783 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-20 21:26:06,783 INFO L87 Difference]: Start difference. First operand 450 states and 622 transitions. Second operand has 4 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 21:26:06,837 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 21:26:06,837 INFO L93 Difference]: Finished difference Result 820 states and 1146 transitions. [2024-11-20 21:26:06,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-20 21:26:06,838 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 64 [2024-11-20 21:26:06,838 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 21:26:06,845 INFO L225 Difference]: With dead ends: 820 [2024-11-20 21:26:06,845 INFO L226 Difference]: Without dead ends: 816 [2024-11-20 21:26:06,846 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-20 21:26:06,847 INFO L432 NwaCegarLoop]: 609 mSDtfsCounter, 456 mSDsluCounter, 1211 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 456 SdHoareTripleChecker+Valid, 1820 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-20 21:26:06,848 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [456 Valid, 1820 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-20 21:26:06,849 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 816 states. [2024-11-20 21:26:06,870 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 816 to 808. [2024-11-20 21:26:06,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 808 states, 777 states have (on average 1.4362934362934363) internal successors, (1116), 792 states have internal predecessors, (1116), 13 states have call successors, (13), 6 states have call predecessors, (13), 4 states have return successors, (13), 10 states have call predecessors, (13), 13 states have call successors, (13) [2024-11-20 21:26:06,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 808 states to 808 states and 1142 transitions. [2024-11-20 21:26:06,875 INFO L78 Accepts]: Start accepts. Automaton has 808 states and 1142 transitions. Word has length 64 [2024-11-20 21:26:06,876 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 21:26:06,876 INFO L471 AbstractCegarLoop]: Abstraction has 808 states and 1142 transitions. [2024-11-20 21:26:06,876 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 21:26:06,877 INFO L276 IsEmpty]: Start isEmpty. Operand 808 states and 1142 transitions. [2024-11-20 21:26:06,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-11-20 21:26:06,879 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 21:26:06,880 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] [2024-11-20 21:26:06,880 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-20 21:26:06,880 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-20 21:26:06,880 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 21:26:06,881 INFO L85 PathProgramCache]: Analyzing trace with hash 1138317444, now seen corresponding path program 1 times [2024-11-20 21:26:06,881 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 21:26:06,881 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [376240337] [2024-11-20 21:26:06,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 21:26:06,881 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 21:26:06,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 21:26:07,120 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 21:26:07,120 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 21:26:07,120 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [376240337] [2024-11-20 21:26:07,120 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [376240337] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 21:26:07,120 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 21:26:07,120 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-20 21:26:07,120 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [113120637] [2024-11-20 21:26:07,121 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 21:26:07,121 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-20 21:26:07,121 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 21:26:07,121 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-20 21:26:07,122 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-20 21:26:07,122 INFO L87 Difference]: Start difference. First operand 808 states and 1142 transitions. Second operand has 4 states, 4 states have (on average 17.5) internal successors, (70), 4 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 21:26:07,245 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 21:26:07,245 INFO L93 Difference]: Finished difference Result 1821 states and 2600 transitions. [2024-11-20 21:26:07,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-20 21:26:07,246 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.5) internal successors, (70), 4 states have internal predecessors, (70), 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 70 [2024-11-20 21:26:07,248 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 21:26:07,255 INFO L225 Difference]: With dead ends: 1821 [2024-11-20 21:26:07,255 INFO L226 Difference]: Without dead ends: 1421 [2024-11-20 21:26:07,257 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-20 21:26:07,258 INFO L432 NwaCegarLoop]: 633 mSDtfsCounter, 557 mSDsluCounter, 1215 mSDsCounter, 0 mSdLazyCounter, 76 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 566 SdHoareTripleChecker+Valid, 1848 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 76 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-20 21:26:07,258 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [566 Valid, 1848 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 76 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-20 21:26:07,261 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1421 states. [2024-11-20 21:26:07,288 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1421 to 808. [2024-11-20 21:26:07,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 808 states, 777 states have (on average 1.435006435006435) internal successors, (1115), 792 states have internal predecessors, (1115), 13 states have call successors, (13), 6 states have call predecessors, (13), 4 states have return successors, (13), 10 states have call predecessors, (13), 13 states have call successors, (13) [2024-11-20 21:26:07,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 808 states to 808 states and 1141 transitions. [2024-11-20 21:26:07,293 INFO L78 Accepts]: Start accepts. Automaton has 808 states and 1141 transitions. Word has length 70 [2024-11-20 21:26:07,293 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 21:26:07,295 INFO L471 AbstractCegarLoop]: Abstraction has 808 states and 1141 transitions. [2024-11-20 21:26:07,295 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.5) internal successors, (70), 4 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 21:26:07,295 INFO L276 IsEmpty]: Start isEmpty. Operand 808 states and 1141 transitions. [2024-11-20 21:26:07,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2024-11-20 21:26:07,296 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 21:26:07,296 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 21:26:07,297 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-20 21:26:07,297 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting alt_bzeroErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-20 21:26:07,297 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 21:26:07,297 INFO L85 PathProgramCache]: Analyzing trace with hash -238535306, now seen corresponding path program 1 times [2024-11-20 21:26:07,297 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 21:26:07,297 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1509199219] [2024-11-20 21:26:07,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 21:26:07,298 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 21:26:07,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 21:26:07,519 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-20 21:26:07,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 21:26:07,530 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 21:26:07,530 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 21:26:07,530 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1509199219] [2024-11-20 21:26:07,530 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1509199219] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 21:26:07,530 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 21:26:07,531 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-20 21:26:07,531 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2001067620] [2024-11-20 21:26:07,531 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 21:26:07,531 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-20 21:26:07,531 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 21:26:07,532 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-20 21:26:07,532 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-20 21:26:07,533 INFO L87 Difference]: Start difference. First operand 808 states and 1141 transitions. Second operand has 4 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-20 21:26:07,679 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 21:26:07,679 INFO L93 Difference]: Finished difference Result 1038 states and 1455 transitions. [2024-11-20 21:26:07,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-20 21:26:07,680 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 74 [2024-11-20 21:26:07,680 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 21:26:07,685 INFO L225 Difference]: With dead ends: 1038 [2024-11-20 21:26:07,685 INFO L226 Difference]: Without dead ends: 1036 [2024-11-20 21:26:07,686 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 [2024-11-20 21:26:07,686 INFO L432 NwaCegarLoop]: 595 mSDtfsCounter, 513 mSDsluCounter, 1157 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 514 SdHoareTripleChecker+Valid, 1752 SdHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-20 21:26:07,687 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [514 Valid, 1752 Invalid, 75 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-20 21:26:07,688 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1036 states. [2024-11-20 21:26:07,729 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1036 to 1026. [2024-11-20 21:26:07,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1026 states, 987 states have (on average 1.4356636271529888) internal successors, (1417), 1003 states have internal predecessors, (1417), 18 states have call successors, (18), 9 states have call predecessors, (18), 7 states have return successors, (18), 15 states have call predecessors, (18), 18 states have call successors, (18) [2024-11-20 21:26:07,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1026 states to 1026 states and 1453 transitions. [2024-11-20 21:26:07,735 INFO L78 Accepts]: Start accepts. Automaton has 1026 states and 1453 transitions. Word has length 74 [2024-11-20 21:26:07,736 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 21:26:07,736 INFO L471 AbstractCegarLoop]: Abstraction has 1026 states and 1453 transitions. [2024-11-20 21:26:07,736 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-20 21:26:07,736 INFO L276 IsEmpty]: Start isEmpty. Operand 1026 states and 1453 transitions. [2024-11-20 21:26:07,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2024-11-20 21:26:07,737 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 21:26:07,737 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 21:26:07,738 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-20 21:26:07,738 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-20 21:26:07,738 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 21:26:07,738 INFO L85 PathProgramCache]: Analyzing trace with hash -676007271, now seen corresponding path program 1 times [2024-11-20 21:26:07,738 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 21:26:07,739 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1580487115] [2024-11-20 21:26:07,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 21:26:07,739 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 21:26:07,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 21:26:08,091 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-20 21:26:08,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 21:26:08,163 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 21:26:08,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 21:26:08,172 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 21:26:08,173 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 21:26:08,173 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1580487115] [2024-11-20 21:26:08,173 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1580487115] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-20 21:26:08,173 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1393958212] [2024-11-20 21:26:08,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 21:26:08,173 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 21:26:08,173 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 21:26:08,176 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-20 21:26:08,195 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-20 21:26:08,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 21:26:08,486 INFO L255 TraceCheckSpWp]: Trace formula consists of 506 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-20 21:26:08,491 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 21:26:08,582 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 21:26:08,583 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-20 21:26:08,583 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1393958212] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 21:26:08,583 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-20 21:26:08,584 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [8] total 11 [2024-11-20 21:26:08,584 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [526869448] [2024-11-20 21:26:08,584 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 21:26:08,584 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-20 21:26:08,585 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 21:26:08,585 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-20 21:26:08,585 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2024-11-20 21:26:08,586 INFO L87 Difference]: Start difference. First operand 1026 states and 1453 transitions. Second operand has 5 states, 4 states have (on average 19.5) internal successors, (78), 5 states have internal predecessors, (78), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-20 21:26:08,676 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 21:26:08,676 INFO L93 Difference]: Finished difference Result 1394 states and 1975 transitions. [2024-11-20 21:26:08,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-20 21:26:08,677 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 19.5) internal successors, (78), 5 states have internal predecessors, (78), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 83 [2024-11-20 21:26:08,677 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 21:26:08,683 INFO L225 Difference]: With dead ends: 1394 [2024-11-20 21:26:08,683 INFO L226 Difference]: Without dead ends: 1393 [2024-11-20 21:26:08,684 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 82 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2024-11-20 21:26:08,684 INFO L432 NwaCegarLoop]: 605 mSDtfsCounter, 579 mSDsluCounter, 1739 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 579 SdHoareTripleChecker+Valid, 2344 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-20 21:26:08,685 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [579 Valid, 2344 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-20 21:26:08,686 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1393 states. [2024-11-20 21:26:08,713 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1393 to 1189. [2024-11-20 21:26:08,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1189 states, 1148 states have (on average 1.4355400696864111) internal successors, (1648), 1165 states have internal predecessors, (1648), 20 states have call successors, (20), 10 states have call predecessors, (20), 7 states have return successors, (20), 15 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-20 21:26:08,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1189 states to 1189 states and 1688 transitions. [2024-11-20 21:26:08,720 INFO L78 Accepts]: Start accepts. Automaton has 1189 states and 1688 transitions. Word has length 83 [2024-11-20 21:26:08,721 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 21:26:08,721 INFO L471 AbstractCegarLoop]: Abstraction has 1189 states and 1688 transitions. [2024-11-20 21:26:08,721 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 19.5) internal successors, (78), 5 states have internal predecessors, (78), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-20 21:26:08,721 INFO L276 IsEmpty]: Start isEmpty. Operand 1189 states and 1688 transitions. [2024-11-20 21:26:08,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-11-20 21:26:08,722 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 21:26:08,722 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 21:26:08,734 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-20 21:26:08,923 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2024-11-20 21:26:08,924 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-20 21:26:08,924 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 21:26:08,924 INFO L85 PathProgramCache]: Analyzing trace with hash 518611120, now seen corresponding path program 1 times [2024-11-20 21:26:08,925 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 21:26:08,925 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1068136025] [2024-11-20 21:26:08,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 21:26:08,926 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 21:26:08,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 21:26:09,229 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-20 21:26:09,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 21:26:09,289 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 21:26:09,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 21:26:09,299 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 21:26:09,299 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 21:26:09,299 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1068136025] [2024-11-20 21:26:09,300 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1068136025] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-20 21:26:09,300 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2045580531] [2024-11-20 21:26:09,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 21:26:09,300 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 21:26:09,300 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 21:26:09,303 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-20 21:26:09,305 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-20 21:26:09,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 21:26:09,558 INFO L255 TraceCheckSpWp]: Trace formula consists of 507 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-20 21:26:09,561 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 21:26:09,707 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 21:26:09,708 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-20 21:26:09,978 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 21:26:09,979 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2045580531] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-20 21:26:09,979 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-20 21:26:09,979 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 6, 7] total 18 [2024-11-20 21:26:09,979 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1877251739] [2024-11-20 21:26:09,980 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-20 21:26:09,980 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-20 21:26:09,980 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 21:26:09,981 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-20 21:26:09,981 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=269, Unknown=0, NotChecked=0, Total=342 [2024-11-20 21:26:09,981 INFO L87 Difference]: Start difference. First operand 1189 states and 1688 transitions. Second operand has 19 states, 18 states have (on average 12.555555555555555) internal successors, (226), 15 states have internal predecessors, (226), 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) [2024-11-20 21:26:11,689 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 21:26:11,689 INFO L93 Difference]: Finished difference Result 3238 states and 4588 transitions. [2024-11-20 21:26:11,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2024-11-20 21:26:11,690 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 18 states have (on average 12.555555555555555) internal successors, (226), 15 states have internal predecessors, (226), 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 84 [2024-11-20 21:26:11,690 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 21:26:11,702 INFO L225 Difference]: With dead ends: 3238 [2024-11-20 21:26:11,703 INFO L226 Difference]: Without dead ends: 3236 [2024-11-20 21:26:11,704 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 209 GetRequests, 167 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 436 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=542, Invalid=1350, Unknown=0, NotChecked=0, Total=1892 [2024-11-20 21:26:11,705 INFO L432 NwaCegarLoop]: 663 mSDtfsCounter, 6424 mSDsluCounter, 6422 mSDsCounter, 0 mSdLazyCounter, 562 mSolverCounterSat, 236 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6434 SdHoareTripleChecker+Valid, 7085 SdHoareTripleChecker+Invalid, 798 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 236 IncrementalHoareTripleChecker+Valid, 562 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-20 21:26:11,705 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [6434 Valid, 7085 Invalid, 798 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [236 Valid, 562 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-20 21:26:11,708 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3236 states. [2024-11-20 21:26:11,789 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3236 to 2747. [2024-11-20 21:26:11,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2747 states, 2659 states have (on average 1.4287326062429484) internal successors, (3799), 2678 states have internal predecessors, (3799), 56 states have call successors, (56), 23 states have call predecessors, (56), 18 states have return successors, (79), 45 states have call predecessors, (79), 56 states have call successors, (79) [2024-11-20 21:26:11,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2747 states to 2747 states and 3934 transitions. [2024-11-20 21:26:11,803 INFO L78 Accepts]: Start accepts. Automaton has 2747 states and 3934 transitions. Word has length 84 [2024-11-20 21:26:11,803 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 21:26:11,804 INFO L471 AbstractCegarLoop]: Abstraction has 2747 states and 3934 transitions. [2024-11-20 21:26:11,804 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 18 states have (on average 12.555555555555555) internal successors, (226), 15 states have internal predecessors, (226), 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) [2024-11-20 21:26:11,804 INFO L276 IsEmpty]: Start isEmpty. Operand 2747 states and 3934 transitions. [2024-11-20 21:26:11,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2024-11-20 21:26:11,805 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 21:26:11,805 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 21:26:11,814 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-20 21:26:12,005 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 21:26:12,006 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-20 21:26:12,006 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 21:26:12,006 INFO L85 PathProgramCache]: Analyzing trace with hash -1558756002, now seen corresponding path program 1 times [2024-11-20 21:26:12,006 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 21:26:12,007 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [8294693] [2024-11-20 21:26:12,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 21:26:12,007 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 21:26:12,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 21:26:12,110 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 21:26:12,110 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 21:26:12,110 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [8294693] [2024-11-20 21:26:12,111 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [8294693] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 21:26:12,111 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 21:26:12,111 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-20 21:26:12,111 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1059971968] [2024-11-20 21:26:12,111 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 21:26:12,111 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 21:26:12,112 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 21:26:12,112 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 21:26:12,112 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 21:26:12,113 INFO L87 Difference]: Start difference. First operand 2747 states and 3934 transitions. Second operand has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 21:26:12,249 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 21:26:12,250 INFO L93 Difference]: Finished difference Result 5553 states and 7970 transitions. [2024-11-20 21:26:12,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 21:26:12,250 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 82 [2024-11-20 21:26:12,251 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 21:26:12,262 INFO L225 Difference]: With dead ends: 5553 [2024-11-20 21:26:12,263 INFO L226 Difference]: Without dead ends: 2815 [2024-11-20 21:26:12,268 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 21:26:12,269 INFO L432 NwaCegarLoop]: 798 mSDtfsCounter, 374 mSDsluCounter, 589 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 375 SdHoareTripleChecker+Valid, 1387 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-20 21:26:12,270 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [375 Valid, 1387 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-20 21:26:12,273 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2815 states. [2024-11-20 21:26:12,334 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2815 to 2804. [2024-11-20 21:26:12,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2804 states, 2723 states have (on average 1.4348145427836945) internal successors, (3907), 2741 states have internal predecessors, (3907), 50 states have call successors, (50), 21 states have call predecessors, (50), 17 states have return successors, (72), 41 states have call predecessors, (72), 50 states have call successors, (72) [2024-11-20 21:26:12,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2804 states to 2804 states and 4029 transitions. [2024-11-20 21:26:12,349 INFO L78 Accepts]: Start accepts. Automaton has 2804 states and 4029 transitions. Word has length 82 [2024-11-20 21:26:12,349 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 21:26:12,349 INFO L471 AbstractCegarLoop]: Abstraction has 2804 states and 4029 transitions. [2024-11-20 21:26:12,349 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 21:26:12,349 INFO L276 IsEmpty]: Start isEmpty. Operand 2804 states and 4029 transitions. [2024-11-20 21:26:12,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2024-11-20 21:26:12,350 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 21:26:12,350 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 21:26:12,350 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-20 21:26:12,351 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting alt_bzeroErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-20 21:26:12,351 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 21:26:12,351 INFO L85 PathProgramCache]: Analyzing trace with hash -2014395234, now seen corresponding path program 1 times [2024-11-20 21:26:12,351 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 21:26:12,352 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1851248360] [2024-11-20 21:26:12,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 21:26:12,352 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 21:26:12,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 21:26:12,754 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-20 21:26:12,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 21:26:12,774 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 21:26:12,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 21:26:12,806 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-11-20 21:26:12,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 21:26:12,813 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-11-20 21:26:12,814 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 21:26:12,814 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1851248360] [2024-11-20 21:26:12,814 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1851248360] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-20 21:26:12,814 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [566316626] [2024-11-20 21:26:12,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 21:26:12,814 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 21:26:12,814 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 21:26:12,817 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-20 21:26:12,818 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-20 21:26:13,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 21:26:13,098 INFO L255 TraceCheckSpWp]: Trace formula consists of 601 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-20 21:26:13,104 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 21:26:13,239 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 7 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 21:26:13,239 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-20 21:26:13,451 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-11-20 21:26:13,451 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [566316626] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-20 21:26:13,451 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-20 21:26:13,451 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [7, 4] total 13 [2024-11-20 21:26:13,452 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1817279939] [2024-11-20 21:26:13,452 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 21:26:13,452 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-20 21:26:13,452 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 21:26:13,453 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-20 21:26:13,453 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=129, Unknown=0, NotChecked=0, Total=182 [2024-11-20 21:26:13,453 INFO L87 Difference]: Start difference. First operand 2804 states and 4029 transitions. Second operand has 6 states, 5 states have (on average 16.0) internal successors, (80), 6 states have internal predecessors, (80), 2 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-20 21:26:13,566 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 21:26:13,566 INFO L93 Difference]: Finished difference Result 2804 states and 4029 transitions. [2024-11-20 21:26:13,567 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 21:26:13,567 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 16.0) internal successors, (80), 6 states have internal predecessors, (80), 2 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 93 [2024-11-20 21:26:13,567 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 21:26:13,578 INFO L225 Difference]: With dead ends: 2804 [2024-11-20 21:26:13,579 INFO L226 Difference]: Without dead ends: 2803 [2024-11-20 21:26:13,580 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 194 GetRequests, 181 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=53, Invalid=129, Unknown=0, NotChecked=0, Total=182 [2024-11-20 21:26:13,580 INFO L432 NwaCegarLoop]: 610 mSDtfsCounter, 1188 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1188 SdHoareTripleChecker+Valid, 610 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-20 21:26:13,581 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1188 Valid, 610 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-20 21:26:13,584 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2803 states. [2024-11-20 21:26:13,650 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2803 to 2803. [2024-11-20 21:26:13,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2803 states, 2723 states have (on average 1.4329783327212633) internal successors, (3902), 2740 states have internal predecessors, (3902), 50 states have call successors, (50), 21 states have call predecessors, (50), 17 states have return successors, (72), 41 states have call predecessors, (72), 50 states have call successors, (72) [2024-11-20 21:26:13,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2803 states to 2803 states and 4024 transitions. [2024-11-20 21:26:13,663 INFO L78 Accepts]: Start accepts. Automaton has 2803 states and 4024 transitions. Word has length 93 [2024-11-20 21:26:13,663 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 21:26:13,663 INFO L471 AbstractCegarLoop]: Abstraction has 2803 states and 4024 transitions. [2024-11-20 21:26:13,664 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 16.0) internal successors, (80), 6 states have internal predecessors, (80), 2 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-20 21:26:13,664 INFO L276 IsEmpty]: Start isEmpty. Operand 2803 states and 4024 transitions. [2024-11-20 21:26:13,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-11-20 21:26:13,666 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 21:26:13,666 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 21:26:13,675 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-20 21:26:13,869 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 21:26:13,870 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting alt_bzeroErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-20 21:26:13,870 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 21:26:13,870 INFO L85 PathProgramCache]: Analyzing trace with hash 1978257255, now seen corresponding path program 1 times [2024-11-20 21:26:13,871 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 21:26:13,871 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [508942520] [2024-11-20 21:26:13,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 21:26:13,871 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 21:26:13,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 21:26:14,134 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-20 21:26:14,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 21:26:14,153 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 21:26:14,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 21:26:14,183 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-11-20 21:26:14,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 21:26:14,191 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-11-20 21:26:14,192 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 21:26:14,192 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [508942520] [2024-11-20 21:26:14,192 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [508942520] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-20 21:26:14,192 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1707140413] [2024-11-20 21:26:14,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 21:26:14,192 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 21:26:14,192 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 21:26:14,195 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-20 21:26:14,196 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-20 21:26:14,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 21:26:14,511 INFO L255 TraceCheckSpWp]: Trace formula consists of 602 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-20 21:26:14,514 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 21:26:14,640 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 21:26:14,640 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-20 21:26:14,813 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-11-20 21:26:14,814 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1707140413] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-20 21:26:14,814 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-20 21:26:14,814 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 4, 5] total 13 [2024-11-20 21:26:14,814 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [881339022] [2024-11-20 21:26:14,814 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-20 21:26:14,814 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-20 21:26:14,815 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 21:26:14,815 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-20 21:26:14,815 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=124, Unknown=0, NotChecked=0, Total=182 [2024-11-20 21:26:14,815 INFO L87 Difference]: Start difference. First operand 2803 states and 4024 transitions. Second operand has 14 states, 13 states have (on average 18.076923076923077) internal successors, (235), 12 states have internal predecessors, (235), 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) [2024-11-20 21:26:15,577 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 21:26:15,577 INFO L93 Difference]: Finished difference Result 5398 states and 7716 transitions. [2024-11-20 21:26:15,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-20 21:26:15,578 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 18.076923076923077) internal successors, (235), 12 states have internal predecessors, (235), 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 94 [2024-11-20 21:26:15,578 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 21:26:15,599 INFO L225 Difference]: With dead ends: 5398 [2024-11-20 21:26:15,599 INFO L226 Difference]: Without dead ends: 5397 [2024-11-20 21:26:15,602 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 218 GetRequests, 192 SyntacticMatches, 1 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 128 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=231, Invalid=471, Unknown=0, NotChecked=0, Total=702 [2024-11-20 21:26:15,603 INFO L432 NwaCegarLoop]: 574 mSDtfsCounter, 2153 mSDsluCounter, 3913 mSDsCounter, 0 mSdLazyCounter, 295 mSolverCounterSat, 113 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2162 SdHoareTripleChecker+Valid, 4487 SdHoareTripleChecker+Invalid, 408 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 113 IncrementalHoareTripleChecker+Valid, 295 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-20 21:26:15,603 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2162 Valid, 4487 Invalid, 408 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [113 Valid, 295 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-20 21:26:15,608 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5397 states. [2024-11-20 21:26:15,775 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5397 to 5014. [2024-11-20 21:26:15,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5014 states, 4858 states have (on average 1.4275421984355703) internal successors, (6935), 4878 states have internal predecessors, (6935), 99 states have call successors, (99), 50 states have call predecessors, (99), 44 states have return successors, (137), 85 states have call predecessors, (137), 99 states have call successors, (137) [2024-11-20 21:26:15,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5014 states to 5014 states and 7171 transitions. [2024-11-20 21:26:15,803 INFO L78 Accepts]: Start accepts. Automaton has 5014 states and 7171 transitions. Word has length 94 [2024-11-20 21:26:15,804 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 21:26:15,804 INFO L471 AbstractCegarLoop]: Abstraction has 5014 states and 7171 transitions. [2024-11-20 21:26:15,804 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 18.076923076923077) internal successors, (235), 12 states have internal predecessors, (235), 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) [2024-11-20 21:26:15,804 INFO L276 IsEmpty]: Start isEmpty. Operand 5014 states and 7171 transitions. [2024-11-20 21:26:15,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2024-11-20 21:26:15,807 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 21:26:15,807 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 21:26:15,818 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-20 21:26:16,008 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2024-11-20 21:26:16,008 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-20 21:26:16,009 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 21:26:16,009 INFO L85 PathProgramCache]: Analyzing trace with hash -1276458826, now seen corresponding path program 1 times [2024-11-20 21:26:16,009 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 21:26:16,009 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [743859796] [2024-11-20 21:26:16,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 21:26:16,009 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 21:26:16,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 21:26:16,432 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-20 21:26:16,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 21:26:16,454 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 21:26:16,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 21:26:16,463 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-11-20 21:26:16,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 21:26:16,475 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-11-20 21:26:16,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 21:26:16,483 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-20 21:26:16,483 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 21:26:16,483 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [743859796] [2024-11-20 21:26:16,483 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [743859796] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 21:26:16,483 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 21:26:16,484 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-20 21:26:16,484 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1597689912] [2024-11-20 21:26:16,484 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 21:26:16,485 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-20 21:26:16,485 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 21:26:16,486 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-20 21:26:16,486 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-20 21:26:16,486 INFO L87 Difference]: Start difference. First operand 5014 states and 7171 transitions. Second operand has 6 states, 5 states have (on average 20.0) internal successors, (100), 4 states have internal predecessors, (100), 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) [2024-11-20 21:26:17,053 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 21:26:17,054 INFO L93 Difference]: Finished difference Result 6550 states and 9380 transitions. [2024-11-20 21:26:17,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-20 21:26:17,054 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 20.0) internal successors, (100), 4 states have internal predecessors, (100), 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 120 [2024-11-20 21:26:17,055 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 21:26:17,092 INFO L225 Difference]: With dead ends: 6550 [2024-11-20 21:26:17,092 INFO L226 Difference]: Without dead ends: 6548 [2024-11-20 21:26:17,099 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-20 21:26:17,100 INFO L432 NwaCegarLoop]: 561 mSDtfsCounter, 512 mSDsluCounter, 2105 mSDsCounter, 0 mSdLazyCounter, 334 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 518 SdHoareTripleChecker+Valid, 2666 SdHoareTripleChecker+Invalid, 369 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 334 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-20 21:26:17,100 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [518 Valid, 2666 Invalid, 369 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 334 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-20 21:26:17,107 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6548 states. [2024-11-20 21:26:17,286 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6548 to 5182. [2024-11-20 21:26:17,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5182 states, 5017 states have (on average 1.4217659956149094) internal successors, (7133), 5038 states have internal predecessors, (7133), 108 states have call successors, (108), 50 states have call predecessors, (108), 44 states have return successors, (149), 93 states have call predecessors, (149), 108 states have call successors, (149) [2024-11-20 21:26:17,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5182 states to 5182 states and 7390 transitions. [2024-11-20 21:26:17,303 INFO L78 Accepts]: Start accepts. Automaton has 5182 states and 7390 transitions. Word has length 120 [2024-11-20 21:26:17,303 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 21:26:17,304 INFO L471 AbstractCegarLoop]: Abstraction has 5182 states and 7390 transitions. [2024-11-20 21:26:17,304 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 20.0) internal successors, (100), 4 states have internal predecessors, (100), 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) [2024-11-20 21:26:17,304 INFO L276 IsEmpty]: Start isEmpty. Operand 5182 states and 7390 transitions. [2024-11-20 21:26:17,305 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2024-11-20 21:26:17,305 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 21:26:17,306 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 21:26:17,306 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-20 21:26:17,306 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-20 21:26:17,306 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 21:26:17,306 INFO L85 PathProgramCache]: Analyzing trace with hash -543684962, now seen corresponding path program 1 times [2024-11-20 21:26:17,307 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 21:26:17,307 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1290205721] [2024-11-20 21:26:17,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 21:26:17,307 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 21:26:17,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 21:26:17,579 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-20 21:26:17,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 21:26:17,642 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 21:26:17,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 21:26:17,647 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-11-20 21:26:17,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 21:26:17,654 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-11-20 21:26:17,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 21:26:17,662 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-20 21:26:17,662 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 21:26:17,662 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1290205721] [2024-11-20 21:26:17,662 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1290205721] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-20 21:26:17,663 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [862374943] [2024-11-20 21:26:17,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 21:26:17,663 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 21:26:17,663 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 21:26:17,669 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-20 21:26:17,672 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-20 21:26:18,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 21:26:18,037 INFO L255 TraceCheckSpWp]: Trace formula consists of 795 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-20 21:26:18,043 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 21:26:18,175 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-11-20 21:26:18,175 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-20 21:26:18,176 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [862374943] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 21:26:18,176 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-20 21:26:18,176 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [8] total 12 [2024-11-20 21:26:18,176 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [929724473] [2024-11-20 21:26:18,176 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 21:26:18,177 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-20 21:26:18,177 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 21:26:18,178 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-20 21:26:18,178 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2024-11-20 21:26:18,179 INFO L87 Difference]: Start difference. First operand 5182 states and 7390 transitions. Second operand has 7 states, 7 states have (on average 16.142857142857142) internal successors, (113), 5 states have internal predecessors, (113), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-20 21:26:18,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 21:26:18,427 INFO L93 Difference]: Finished difference Result 9710 states and 13884 transitions. [2024-11-20 21:26:18,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-20 21:26:18,428 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.142857142857142) internal successors, (113), 5 states have internal predecessors, (113), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) Word has length 127 [2024-11-20 21:26:18,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 21:26:18,446 INFO L225 Difference]: With dead ends: 9710 [2024-11-20 21:26:18,446 INFO L226 Difference]: Without dead ends: 4932 [2024-11-20 21:26:18,455 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 142 GetRequests, 129 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=165, Unknown=0, NotChecked=0, Total=210 [2024-11-20 21:26:18,455 INFO L432 NwaCegarLoop]: 590 mSDtfsCounter, 161 mSDsluCounter, 2303 mSDsCounter, 0 mSdLazyCounter, 143 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 162 SdHoareTripleChecker+Valid, 2893 SdHoareTripleChecker+Invalid, 153 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 143 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-20 21:26:18,456 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [162 Valid, 2893 Invalid, 153 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 143 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-20 21:26:18,461 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4932 states. [2024-11-20 21:26:18,576 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4932 to 4932. [2024-11-20 21:26:18,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4932 states, 4784 states have (on average 1.425376254180602) internal successors, (6819), 4803 states have internal predecessors, (6819), 97 states have call successors, (97), 44 states have call predecessors, (97), 38 states have return successors, (132), 84 states have call predecessors, (132), 97 states have call successors, (132) [2024-11-20 21:26:18,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4932 states to 4932 states and 7048 transitions. [2024-11-20 21:26:18,601 INFO L78 Accepts]: Start accepts. Automaton has 4932 states and 7048 transitions. Word has length 127 [2024-11-20 21:26:18,601 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 21:26:18,601 INFO L471 AbstractCegarLoop]: Abstraction has 4932 states and 7048 transitions. [2024-11-20 21:26:18,602 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.142857142857142) internal successors, (113), 5 states have internal predecessors, (113), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-20 21:26:18,603 INFO L276 IsEmpty]: Start isEmpty. Operand 4932 states and 7048 transitions. [2024-11-20 21:26:18,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2024-11-20 21:26:18,604 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 21:26:18,604 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 21:26:18,615 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-20 21:26:18,805 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 21:26:18,805 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-20 21:26:18,806 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 21:26:18,806 INFO L85 PathProgramCache]: Analyzing trace with hash 1097892489, now seen corresponding path program 1 times [2024-11-20 21:26:18,806 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 21:26:18,806 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2086169449] [2024-11-20 21:26:18,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 21:26:18,806 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 21:26:18,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 21:26:19,199 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-20 21:26:19,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 21:26:19,205 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-20 21:26:19,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 21:26:19,215 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-20 21:26:19,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 21:26:19,272 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-11-20 21:26:19,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 21:26:19,278 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-20 21:26:19,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 21:26:19,282 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-20 21:26:19,282 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 21:26:19,282 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2086169449] [2024-11-20 21:26:19,282 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2086169449] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-20 21:26:19,283 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [673770065] [2024-11-20 21:26:19,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 21:26:19,283 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 21:26:19,283 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 21:26:19,285 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-20 21:26:19,287 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-20 21:26:19,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 21:26:19,685 INFO L255 TraceCheckSpWp]: Trace formula consists of 805 conjuncts, 28 conjuncts are in the unsatisfiable core [2024-11-20 21:26:19,689 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 21:26:19,889 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-20 21:26:19,889 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-20 21:26:19,890 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [673770065] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 21:26:19,890 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-20 21:26:19,890 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [7] total 12 [2024-11-20 21:26:19,890 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [80925422] [2024-11-20 21:26:19,890 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 21:26:19,891 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-20 21:26:19,891 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 21:26:19,891 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-20 21:26:19,891 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2024-11-20 21:26:19,892 INFO L87 Difference]: Start difference. First operand 4932 states and 7048 transitions. Second operand has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 7 states have internal predecessors, (111), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-20 21:26:21,180 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 21:26:21,181 INFO L93 Difference]: Finished difference Result 10282 states and 14661 transitions. [2024-11-20 21:26:21,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-20 21:26:21,182 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 7 states have internal predecessors, (111), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 132 [2024-11-20 21:26:21,182 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 21:26:21,196 INFO L225 Difference]: With dead ends: 10282 [2024-11-20 21:26:21,196 INFO L226 Difference]: Without dead ends: 5439 [2024-11-20 21:26:21,204 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 145 GetRequests, 135 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2024-11-20 21:26:21,206 INFO L432 NwaCegarLoop]: 592 mSDtfsCounter, 15 mSDsluCounter, 2290 mSDsCounter, 0 mSdLazyCounter, 795 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 2882 SdHoareTripleChecker+Invalid, 798 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 795 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-20 21:26:21,206 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 2882 Invalid, 798 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 795 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-20 21:26:21,211 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5439 states. [2024-11-20 21:26:21,342 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5439 to 5387. [2024-11-20 21:26:21,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5387 states, 5239 states have (on average 1.4082840236686391) internal successors, (7378), 5258 states have internal predecessors, (7378), 97 states have call successors, (97), 44 states have call predecessors, (97), 38 states have return successors, (132), 84 states have call predecessors, (132), 97 states have call successors, (132) [2024-11-20 21:26:21,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5387 states to 5387 states and 7607 transitions. [2024-11-20 21:26:21,358 INFO L78 Accepts]: Start accepts. Automaton has 5387 states and 7607 transitions. Word has length 132 [2024-11-20 21:26:21,358 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 21:26:21,359 INFO L471 AbstractCegarLoop]: Abstraction has 5387 states and 7607 transitions. [2024-11-20 21:26:21,359 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 7 states have internal predecessors, (111), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-20 21:26:21,359 INFO L276 IsEmpty]: Start isEmpty. Operand 5387 states and 7607 transitions. [2024-11-20 21:26:21,360 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2024-11-20 21:26:21,360 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 21:26:21,360 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 21:26:21,371 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-20 21:26:21,564 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 21:26:21,564 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-20 21:26:21,565 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 21:26:21,565 INFO L85 PathProgramCache]: Analyzing trace with hash 879671620, now seen corresponding path program 1 times [2024-11-20 21:26:21,565 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 21:26:21,565 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1428785523] [2024-11-20 21:26:21,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 21:26:21,565 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 21:26:21,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 21:26:21,875 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-11-20 21:26:21,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 21:26:21,881 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-20 21:26:21,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 21:26:21,897 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-20 21:26:21,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 21:26:21,901 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-11-20 21:26:21,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 21:26:21,907 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-11-20 21:26:21,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 21:26:21,931 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-20 21:26:21,932 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 21:26:21,932 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1428785523] [2024-11-20 21:26:21,932 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1428785523] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 21:26:21,933 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 21:26:21,933 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-20 21:26:21,933 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [714601002] [2024-11-20 21:26:21,933 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 21:26:21,933 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-20 21:26:21,934 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 21:26:21,934 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-20 21:26:21,934 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-20 21:26:21,934 INFO L87 Difference]: Start difference. First operand 5387 states and 7607 transitions. Second operand has 9 states, 9 states have (on average 12.444444444444445) internal successors, (112), 7 states have internal predecessors, (112), 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) [2024-11-20 21:26:22,912 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 21:26:22,912 INFO L93 Difference]: Finished difference Result 10744 states and 15200 transitions. [2024-11-20 21:26:22,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-20 21:26:22,913 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.444444444444445) internal successors, (112), 7 states have internal predecessors, (112), 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 133 [2024-11-20 21:26:22,913 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 21:26:22,927 INFO L225 Difference]: With dead ends: 10744 [2024-11-20 21:26:22,928 INFO L226 Difference]: Without dead ends: 5491 [2024-11-20 21:26:22,939 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 [2024-11-20 21:26:22,940 INFO L432 NwaCegarLoop]: 567 mSDtfsCounter, 57 mSDsluCounter, 3174 mSDsCounter, 0 mSdLazyCounter, 1135 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 3741 SdHoareTripleChecker+Invalid, 1155 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 1135 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-20 21:26:22,940 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 3741 Invalid, 1155 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 1135 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-20 21:26:22,944 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5491 states. [2024-11-20 21:26:23,047 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5491 to 5439. [2024-11-20 21:26:23,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5439 states, 5291 states have (on average 1.4091854091854092) internal successors, (7456), 5310 states have internal predecessors, (7456), 97 states have call successors, (97), 44 states have call predecessors, (97), 38 states have return successors, (132), 84 states have call predecessors, (132), 97 states have call successors, (132) [2024-11-20 21:26:23,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5439 states to 5439 states and 7685 transitions. [2024-11-20 21:26:23,063 INFO L78 Accepts]: Start accepts. Automaton has 5439 states and 7685 transitions. Word has length 133 [2024-11-20 21:26:23,063 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 21:26:23,063 INFO L471 AbstractCegarLoop]: Abstraction has 5439 states and 7685 transitions. [2024-11-20 21:26:23,064 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.444444444444445) internal successors, (112), 7 states have internal predecessors, (112), 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) [2024-11-20 21:26:23,064 INFO L276 IsEmpty]: Start isEmpty. Operand 5439 states and 7685 transitions. [2024-11-20 21:26:23,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2024-11-20 21:26:23,065 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 21:26:23,065 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 21:26:23,065 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-20 21:26:23,066 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-20 21:26:23,066 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 21:26:23,066 INFO L85 PathProgramCache]: Analyzing trace with hash -721549227, now seen corresponding path program 1 times [2024-11-20 21:26:23,066 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 21:26:23,066 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [945505226] [2024-11-20 21:26:23,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 21:26:23,067 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 21:26:23,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 21:26:23,590 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-11-20 21:26:23,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 21:26:23,596 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-20 21:26:23,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 21:26:23,615 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-20 21:26:23,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 21:26:23,622 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-20 21:26:23,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 21:26:23,631 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2024-11-20 21:26:23,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 21:26:23,634 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-20 21:26:23,636 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 21:26:23,636 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [945505226] [2024-11-20 21:26:23,636 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [945505226] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 21:26:23,636 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 21:26:23,636 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-20 21:26:23,637 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [219995082] [2024-11-20 21:26:23,637 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 21:26:23,637 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-20 21:26:23,637 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 21:26:23,638 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-20 21:26:23,638 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2024-11-20 21:26:23,638 INFO L87 Difference]: Start difference. First operand 5439 states and 7685 transitions. Second operand has 11 states, 11 states have (on average 10.272727272727273) internal successors, (113), 9 states have internal predecessors, (113), 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) [2024-11-20 21:26:24,853 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 21:26:24,853 INFO L93 Difference]: Finished difference Result 11031 states and 15603 transitions. [2024-11-20 21:26:24,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-20 21:26:24,854 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 10.272727272727273) internal successors, (113), 9 states have internal predecessors, (113), 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 134 [2024-11-20 21:26:24,854 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 21:26:24,866 INFO L225 Difference]: With dead ends: 11031 [2024-11-20 21:26:24,866 INFO L226 Difference]: Without dead ends: 5725 [2024-11-20 21:26:24,873 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=35, Invalid=175, Unknown=0, NotChecked=0, Total=210 [2024-11-20 21:26:24,874 INFO L432 NwaCegarLoop]: 562 mSDtfsCounter, 79 mSDsluCounter, 4144 mSDsCounter, 0 mSdLazyCounter, 1415 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 80 SdHoareTripleChecker+Valid, 4706 SdHoareTripleChecker+Invalid, 1437 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 1415 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-20 21:26:24,874 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [80 Valid, 4706 Invalid, 1437 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 1415 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-20 21:26:24,878 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5725 states. [2024-11-20 21:26:24,977 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5725 to 5595. [2024-11-20 21:26:24,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5595 states, 5447 states have (on average 1.4093996695428677) internal successors, (7677), 5466 states have internal predecessors, (7677), 97 states have call successors, (97), 44 states have call predecessors, (97), 38 states have return successors, (132), 84 states have call predecessors, (132), 97 states have call successors, (132) [2024-11-20 21:26:24,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5595 states to 5595 states and 7906 transitions. [2024-11-20 21:26:24,994 INFO L78 Accepts]: Start accepts. Automaton has 5595 states and 7906 transitions. Word has length 134 [2024-11-20 21:26:24,994 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 21:26:24,994 INFO L471 AbstractCegarLoop]: Abstraction has 5595 states and 7906 transitions. [2024-11-20 21:26:24,994 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 10.272727272727273) internal successors, (113), 9 states have internal predecessors, (113), 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) [2024-11-20 21:26:24,994 INFO L276 IsEmpty]: Start isEmpty. Operand 5595 states and 7906 transitions. [2024-11-20 21:26:24,996 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2024-11-20 21:26:24,996 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 21:26:24,996 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 21:26:24,996 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-20 21:26:24,996 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-20 21:26:24,997 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 21:26:24,997 INFO L85 PathProgramCache]: Analyzing trace with hash 495986798, now seen corresponding path program 1 times [2024-11-20 21:26:24,997 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 21:26:24,997 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1781819394] [2024-11-20 21:26:24,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 21:26:24,997 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 21:26:25,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 21:26:25,408 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-11-20 21:26:25,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 21:26:25,415 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-20 21:26:25,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 21:26:25,427 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-20 21:26:25,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 21:26:25,488 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-20 21:26:25,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 21:26:25,495 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2024-11-20 21:26:25,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 21:26:25,500 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-20 21:26:25,500 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 21:26:25,500 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1781819394] [2024-11-20 21:26:25,500 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1781819394] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-20 21:26:25,500 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [965902462] [2024-11-20 21:26:25,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 21:26:25,501 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 21:26:25,501 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 21:26:25,504 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-20 21:26:25,505 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-20 21:26:25,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 21:26:25,967 INFO L255 TraceCheckSpWp]: Trace formula consists of 807 conjuncts, 31 conjuncts are in the unsatisfiable core [2024-11-20 21:26:25,973 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 21:26:25,976 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-11-20 21:26:25,997 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-11-20 21:26:26,016 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2024-11-20 21:26:26,701 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-20 21:26:26,702 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-20 21:26:26,702 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [965902462] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 21:26:26,702 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-20 21:26:26,702 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [7] total 16 [2024-11-20 21:26:26,702 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [210682100] [2024-11-20 21:26:26,702 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 21:26:26,703 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-20 21:26:26,703 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 21:26:26,703 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-20 21:26:26,703 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=201, Unknown=0, NotChecked=0, Total=240 [2024-11-20 21:26:26,704 INFO L87 Difference]: Start difference. First operand 5595 states and 7906 transitions. Second operand has 11 states, 11 states have (on average 10.272727272727273) internal successors, (113), 11 states have internal predecessors, (113), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-20 21:26:27,961 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 21:26:27,961 INFO L93 Difference]: Finished difference Result 12432 states and 17619 transitions. [2024-11-20 21:26:27,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-20 21:26:27,962 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 10.272727272727273) internal successors, (113), 11 states have internal predecessors, (113), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 134 [2024-11-20 21:26:27,962 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 21:26:27,976 INFO L225 Difference]: With dead ends: 12432 [2024-11-20 21:26:27,976 INFO L226 Difference]: Without dead ends: 6969 [2024-11-20 21:26:27,983 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 155 GetRequests, 132 SyntacticMatches, 1 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=105, Invalid=447, Unknown=0, NotChecked=0, Total=552 [2024-11-20 21:26:27,984 INFO L432 NwaCegarLoop]: 591 mSDtfsCounter, 831 mSDsluCounter, 2458 mSDsCounter, 0 mSdLazyCounter, 750 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 838 SdHoareTripleChecker+Valid, 3049 SdHoareTripleChecker+Invalid, 757 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 750 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-20 21:26:27,984 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [838 Valid, 3049 Invalid, 757 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 750 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-20 21:26:27,989 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6969 states. [2024-11-20 21:26:28,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6969 to 5583. [2024-11-20 21:26:28,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5583 states, 5435 states have (on average 1.4091996320147193) internal successors, (7659), 5454 states have internal predecessors, (7659), 97 states have call successors, (97), 44 states have call predecessors, (97), 38 states have return successors, (132), 84 states have call predecessors, (132), 97 states have call successors, (132) [2024-11-20 21:26:28,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5583 states to 5583 states and 7888 transitions. [2024-11-20 21:26:28,112 INFO L78 Accepts]: Start accepts. Automaton has 5583 states and 7888 transitions. Word has length 134 [2024-11-20 21:26:28,112 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 21:26:28,112 INFO L471 AbstractCegarLoop]: Abstraction has 5583 states and 7888 transitions. [2024-11-20 21:26:28,113 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 10.272727272727273) internal successors, (113), 11 states have internal predecessors, (113), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-20 21:26:28,113 INFO L276 IsEmpty]: Start isEmpty. Operand 5583 states and 7888 transitions. [2024-11-20 21:26:28,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2024-11-20 21:26:28,114 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 21:26:28,114 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 21:26:28,126 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2024-11-20 21:26:28,318 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2024-11-20 21:26:28,319 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-20 21:26:28,319 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 21:26:28,319 INFO L85 PathProgramCache]: Analyzing trace with hash -154304966, now seen corresponding path program 1 times [2024-11-20 21:26:28,319 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 21:26:28,320 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1378652814] [2024-11-20 21:26:28,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 21:26:28,320 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 21:26:28,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 21:26:28,682 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-20 21:26:28,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 21:26:28,689 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-20 21:26:28,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 21:26:28,706 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-11-20 21:26:28,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 21:26:28,710 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-20 21:26:28,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 21:26:28,716 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-11-20 21:26:28,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 21:26:28,719 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-20 21:26:28,719 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 21:26:28,720 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1378652814] [2024-11-20 21:26:28,720 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1378652814] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 21:26:28,720 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 21:26:28,720 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-20 21:26:28,720 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [509209528] [2024-11-20 21:26:28,720 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 21:26:28,720 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-20 21:26:28,721 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 21:26:28,721 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-20 21:26:28,721 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2024-11-20 21:26:28,721 INFO L87 Difference]: Start difference. First operand 5583 states and 7888 transitions. Second operand has 11 states, 11 states have (on average 10.454545454545455) internal successors, (115), 9 states have internal predecessors, (115), 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) [2024-11-20 21:26:29,821 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 21:26:29,822 INFO L93 Difference]: Finished difference Result 11282 states and 15937 transitions. [2024-11-20 21:26:29,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-20 21:26:29,822 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 10.454545454545455) internal successors, (115), 9 states have internal predecessors, (115), 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 136 [2024-11-20 21:26:29,823 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 21:26:29,835 INFO L225 Difference]: With dead ends: 11282 [2024-11-20 21:26:29,835 INFO L226 Difference]: Without dead ends: 5830 [2024-11-20 21:26:29,843 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2024-11-20 21:26:29,843 INFO L432 NwaCegarLoop]: 562 mSDtfsCounter, 64 mSDsluCounter, 4148 mSDsCounter, 0 mSdLazyCounter, 1365 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 4710 SdHoareTripleChecker+Invalid, 1386 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 1365 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-20 21:26:29,844 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [65 Valid, 4710 Invalid, 1386 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 1365 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-20 21:26:29,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5830 states. [2024-11-20 21:26:29,943 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5830 to 5665. [2024-11-20 21:26:29,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5665 states, 5517 states have (on average 1.4080116005075223) internal successors, (7768), 5536 states have internal predecessors, (7768), 97 states have call successors, (97), 44 states have call predecessors, (97), 38 states have return successors, (132), 84 states have call predecessors, (132), 97 states have call successors, (132) [2024-11-20 21:26:29,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5665 states to 5665 states and 7997 transitions. [2024-11-20 21:26:29,962 INFO L78 Accepts]: Start accepts. Automaton has 5665 states and 7997 transitions. Word has length 136 [2024-11-20 21:26:29,962 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 21:26:29,964 INFO L471 AbstractCegarLoop]: Abstraction has 5665 states and 7997 transitions. [2024-11-20 21:26:29,964 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 10.454545454545455) internal successors, (115), 9 states have internal predecessors, (115), 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) [2024-11-20 21:26:29,965 INFO L276 IsEmpty]: Start isEmpty. Operand 5665 states and 7997 transitions. [2024-11-20 21:26:29,966 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2024-11-20 21:26:29,966 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 21:26:29,966 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 21:26:29,966 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-20 21:26:29,966 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-20 21:26:29,967 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 21:26:29,967 INFO L85 PathProgramCache]: Analyzing trace with hash 477153959, now seen corresponding path program 1 times [2024-11-20 21:26:29,967 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 21:26:29,967 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1643917634] [2024-11-20 21:26:29,967 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 21:26:29,967 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 21:26:30,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 21:26:30,334 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-20 21:26:30,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 21:26:30,340 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-20 21:26:30,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 21:26:30,351 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-11-20 21:26:30,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 21:26:30,402 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-11-20 21:26:30,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 21:26:30,407 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-11-20 21:26:30,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 21:26:30,411 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-20 21:26:30,411 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 21:26:30,411 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1643917634] [2024-11-20 21:26:30,411 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1643917634] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-20 21:26:30,411 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [844521060] [2024-11-20 21:26:30,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 21:26:30,412 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 21:26:30,412 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 21:26:30,414 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-20 21:26:30,416 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-20 21:26:30,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 21:26:30,852 INFO L255 TraceCheckSpWp]: Trace formula consists of 807 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-20 21:26:30,855 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 21:26:30,943 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-20 21:26:30,943 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-20 21:26:30,943 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [844521060] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 21:26:30,943 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-20 21:26:30,944 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [7] total 12 [2024-11-20 21:26:30,944 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [889062879] [2024-11-20 21:26:30,944 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 21:26:30,944 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-20 21:26:30,944 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 21:26:30,945 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-20 21:26:30,945 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2024-11-20 21:26:30,945 INFO L87 Difference]: Start difference. First operand 5665 states and 7997 transitions. Second operand has 7 states, 7 states have (on average 16.571428571428573) internal successors, (116), 7 states have internal predecessors, (116), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-20 21:26:31,441 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 21:26:31,442 INFO L93 Difference]: Finished difference Result 11359 states and 16058 transitions. [2024-11-20 21:26:31,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-20 21:26:31,443 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.571428571428573) internal successors, (116), 7 states have internal predecessors, (116), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 137 [2024-11-20 21:26:31,443 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 21:26:31,455 INFO L225 Difference]: With dead ends: 11359 [2024-11-20 21:26:31,455 INFO L226 Difference]: Without dead ends: 5847 [2024-11-20 21:26:31,462 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 152 GetRequests, 140 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2024-11-20 21:26:31,463 INFO L432 NwaCegarLoop]: 588 mSDtfsCounter, 40 mSDsluCounter, 2440 mSDsCounter, 0 mSdLazyCounter, 662 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 3028 SdHoareTripleChecker+Invalid, 666 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 662 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-20 21:26:31,463 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 3028 Invalid, 666 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 662 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-20 21:26:31,467 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5847 states. [2024-11-20 21:26:31,571 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5847 to 5756. [2024-11-20 21:26:31,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5756 states, 5608 states have (on average 1.408345221112696) internal successors, (7898), 5627 states have internal predecessors, (7898), 97 states have call successors, (97), 44 states have call predecessors, (97), 38 states have return successors, (132), 84 states have call predecessors, (132), 97 states have call successors, (132) [2024-11-20 21:26:31,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5756 states to 5756 states and 8127 transitions. [2024-11-20 21:26:31,586 INFO L78 Accepts]: Start accepts. Automaton has 5756 states and 8127 transitions. Word has length 137 [2024-11-20 21:26:31,586 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 21:26:31,586 INFO L471 AbstractCegarLoop]: Abstraction has 5756 states and 8127 transitions. [2024-11-20 21:26:31,586 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.571428571428573) internal successors, (116), 7 states have internal predecessors, (116), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-20 21:26:31,587 INFO L276 IsEmpty]: Start isEmpty. Operand 5756 states and 8127 transitions. [2024-11-20 21:26:31,588 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2024-11-20 21:26:31,588 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 21:26:31,588 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 21:26:31,600 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2024-11-20 21:26:31,792 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 21:26:31,792 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-20 21:26:31,793 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 21:26:31,793 INFO L85 PathProgramCache]: Analyzing trace with hash 1694689984, now seen corresponding path program 1 times [2024-11-20 21:26:31,793 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 21:26:31,793 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1542786295] [2024-11-20 21:26:31,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 21:26:31,793 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 21:26:32,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 21:26:32,214 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-20 21:26:32,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 21:26:32,222 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-20 21:26:32,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 21:26:32,230 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-11-20 21:26:32,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 21:26:32,273 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-11-20 21:26:32,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 21:26:32,279 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-11-20 21:26:32,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 21:26:32,282 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-20 21:26:32,282 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 21:26:32,282 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1542786295] [2024-11-20 21:26:32,283 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1542786295] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-20 21:26:32,283 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [103510063] [2024-11-20 21:26:32,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 21:26:32,283 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 21:26:32,283 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 21:26:32,285 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-20 21:26:32,287 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-20 21:26:32,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 21:26:32,956 INFO L255 TraceCheckSpWp]: Trace formula consists of 807 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-11-20 21:26:32,959 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 21:26:33,046 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 21:26:33,046 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-20 21:26:33,046 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [103510063] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 21:26:33,046 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-20 21:26:33,046 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [7] total 13 [2024-11-20 21:26:33,047 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [342935692] [2024-11-20 21:26:33,047 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 21:26:33,047 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-20 21:26:33,047 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 21:26:33,047 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-20 21:26:33,048 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=131, Unknown=0, NotChecked=0, Total=156 [2024-11-20 21:26:33,048 INFO L87 Difference]: Start difference. First operand 5756 states and 8127 transitions. Second operand has 9 states, 9 states have (on average 14.11111111111111) internal successors, (127), 9 states have internal predecessors, (127), 3 states have call successors, (5), 2 states have call predecessors, (5), 4 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2024-11-20 21:26:33,187 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 21:26:33,187 INFO L93 Difference]: Finished difference Result 9040 states and 12754 transitions. [2024-11-20 21:26:33,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-20 21:26:33,188 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 14.11111111111111) internal successors, (127), 9 states have internal predecessors, (127), 3 states have call successors, (5), 2 states have call predecessors, (5), 4 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) Word has length 137 [2024-11-20 21:26:33,189 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 21:26:33,197 INFO L225 Difference]: With dead ends: 9040 [2024-11-20 21:26:33,197 INFO L226 Difference]: Without dead ends: 3467 [2024-11-20 21:26:33,203 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 152 GetRequests, 139 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=177, Unknown=0, NotChecked=0, Total=210 [2024-11-20 21:26:33,204 INFO L432 NwaCegarLoop]: 604 mSDtfsCounter, 13 mSDsluCounter, 4196 mSDsCounter, 0 mSdLazyCounter, 99 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 4800 SdHoareTripleChecker+Invalid, 105 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 99 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-20 21:26:33,204 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 4800 Invalid, 105 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 99 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-20 21:26:33,206 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3467 states. [2024-11-20 21:26:33,287 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3467 to 3465. [2024-11-20 21:26:33,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3465 states, 3363 states have (on average 1.4064823074635742) internal successors, (4730), 3379 states have internal predecessors, (4730), 54 states have call successors, (54), 38 states have call predecessors, (54), 35 states have return successors, (65), 47 states have call predecessors, (65), 54 states have call successors, (65) [2024-11-20 21:26:33,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3465 states to 3465 states and 4849 transitions. [2024-11-20 21:26:33,297 INFO L78 Accepts]: Start accepts. Automaton has 3465 states and 4849 transitions. Word has length 137 [2024-11-20 21:26:33,298 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 21:26:33,298 INFO L471 AbstractCegarLoop]: Abstraction has 3465 states and 4849 transitions. [2024-11-20 21:26:33,298 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 14.11111111111111) internal successors, (127), 9 states have internal predecessors, (127), 3 states have call successors, (5), 2 states have call predecessors, (5), 4 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2024-11-20 21:26:33,298 INFO L276 IsEmpty]: Start isEmpty. Operand 3465 states and 4849 transitions. [2024-11-20 21:26:33,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2024-11-20 21:26:33,299 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 21:26:33,299 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 21:26:33,313 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-11-20 21:26:33,503 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 21:26:33,504 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-20 21:26:33,504 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 21:26:33,504 INFO L85 PathProgramCache]: Analyzing trace with hash 1517491482, now seen corresponding path program 1 times [2024-11-20 21:26:33,504 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 21:26:33,504 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2046284374] [2024-11-20 21:26:33,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 21:26:33,504 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 21:26:33,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 21:26:33,930 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-20 21:26:33,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 21:26:33,936 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-20 21:26:33,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 21:26:33,945 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-11-20 21:26:33,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 21:26:34,034 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-11-20 21:26:34,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 21:26:34,040 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-20 21:26:34,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 21:26:34,045 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 6 proven. 10 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-11-20 21:26:34,046 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 21:26:34,046 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2046284374] [2024-11-20 21:26:34,046 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2046284374] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-20 21:26:34,046 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [708002823] [2024-11-20 21:26:34,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 21:26:34,046 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 21:26:34,047 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 21:26:34,049 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-20 21:26:34,050 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-11-20 21:26:34,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 21:26:34,529 INFO L255 TraceCheckSpWp]: Trace formula consists of 837 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-11-20 21:26:34,531 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 21:26:34,619 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 23 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-20 21:26:34,619 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-20 21:26:34,760 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 6 proven. 10 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-11-20 21:26:34,760 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [708002823] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-20 21:26:34,760 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-20 21:26:34,761 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 10, 6] total 18 [2024-11-20 21:26:34,761 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1445893605] [2024-11-20 21:26:34,761 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-20 21:26:34,761 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-20 21:26:34,761 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 21:26:34,762 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-20 21:26:34,762 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=253, Unknown=0, NotChecked=0, Total=306 [2024-11-20 21:26:34,762 INFO L87 Difference]: Start difference. First operand 3465 states and 4849 transitions. Second operand has 18 states, 18 states have (on average 8.833333333333334) internal successors, (159), 16 states have internal predecessors, (159), 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) [2024-11-20 21:26:35,863 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 21:26:35,863 INFO L93 Difference]: Finished difference Result 6810 states and 9553 transitions. [2024-11-20 21:26:35,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2024-11-20 21:26:35,864 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 8.833333333333334) internal successors, (159), 16 states have internal predecessors, (159), 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 139 [2024-11-20 21:26:35,864 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 21:26:35,875 INFO L225 Difference]: With dead ends: 6810 [2024-11-20 21:26:35,875 INFO L226 Difference]: Without dead ends: 3537 [2024-11-20 21:26:35,878 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 318 GetRequests, 280 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 292 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=251, Invalid=1309, Unknown=0, NotChecked=0, Total=1560 [2024-11-20 21:26:35,879 INFO L432 NwaCegarLoop]: 580 mSDtfsCounter, 94 mSDsluCounter, 6201 mSDsCounter, 0 mSdLazyCounter, 582 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 94 SdHoareTripleChecker+Valid, 6781 SdHoareTripleChecker+Invalid, 617 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 582 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-20 21:26:35,879 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [94 Valid, 6781 Invalid, 617 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 582 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-20 21:26:35,881 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3537 states. [2024-11-20 21:26:35,956 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3537 to 3505. [2024-11-20 21:26:35,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3505 states, 3402 states have (on average 1.40652557319224) internal successors, (4785), 3415 states have internal predecessors, (4785), 54 states have call successors, (54), 42 states have call predecessors, (54), 36 states have return successors, (61), 47 states have call predecessors, (61), 54 states have call successors, (61) [2024-11-20 21:26:35,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3505 states to 3505 states and 4900 transitions. [2024-11-20 21:26:35,966 INFO L78 Accepts]: Start accepts. Automaton has 3505 states and 4900 transitions. Word has length 139 [2024-11-20 21:26:35,966 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 21:26:35,966 INFO L471 AbstractCegarLoop]: Abstraction has 3505 states and 4900 transitions. [2024-11-20 21:26:35,966 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 8.833333333333334) internal successors, (159), 16 states have internal predecessors, (159), 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) [2024-11-20 21:26:35,966 INFO L276 IsEmpty]: Start isEmpty. Operand 3505 states and 4900 transitions. [2024-11-20 21:26:35,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2024-11-20 21:26:35,968 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 21:26:35,968 INFO L215 NwaCegarLoop]: trace histogram [6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 21:26:35,980 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2024-11-20 21:26:36,168 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2024-11-20 21:26:36,169 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-20 21:26:36,169 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 21:26:36,169 INFO L85 PathProgramCache]: Analyzing trace with hash -475118432, now seen corresponding path program 2 times [2024-11-20 21:26:36,169 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 21:26:36,169 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [898930133] [2024-11-20 21:26:36,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 21:26:36,170 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 21:26:36,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 21:26:36,630 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-20 21:26:36,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 21:26:36,635 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-20 21:26:36,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 21:26:36,645 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-11-20 21:26:36,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 21:26:36,830 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-11-20 21:26:36,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 21:26:36,836 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-11-20 21:26:36,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 21:26:36,845 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 6 proven. 30 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-20 21:26:36,846 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 21:26:36,846 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [898930133] [2024-11-20 21:26:36,846 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [898930133] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-20 21:26:36,846 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [907047234] [2024-11-20 21:26:36,846 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-20 21:26:36,847 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 21:26:36,847 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 21:26:36,849 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-20 21:26:36,850 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-11-20 21:26:37,270 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-20 21:26:37,270 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-20 21:26:37,272 INFO L255 TraceCheckSpWp]: Trace formula consists of 120 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-20 21:26:37,275 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 21:26:37,284 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2024-11-20 21:26:37,297 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2024-11-20 21:26:37,298 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-20 21:26:37,298 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [907047234] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 21:26:37,298 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-20 21:26:37,298 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [11] total 12 [2024-11-20 21:26:37,298 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1836464660] [2024-11-20 21:26:37,299 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 21:26:37,299 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 21:26:37,299 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 21:26:37,300 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 21:26:37,300 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2024-11-20 21:26:37,300 INFO L87 Difference]: Start difference. First operand 3505 states and 4900 transitions. Second operand has 3 states, 2 states have (on average 56.5) internal successors, (113), 3 states have internal predecessors, (113), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-20 21:26:37,361 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 21:26:37,362 INFO L93 Difference]: Finished difference Result 3505 states and 4900 transitions. [2024-11-20 21:26:37,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 21:26:37,363 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 56.5) internal successors, (113), 3 states have internal predecessors, (113), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 143 [2024-11-20 21:26:37,363 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 21:26:37,371 INFO L225 Difference]: With dead ends: 3505 [2024-11-20 21:26:37,371 INFO L226 Difference]: Without dead ends: 3504 [2024-11-20 21:26:37,373 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 160 GetRequests, 150 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2024-11-20 21:26:37,373 INFO L432 NwaCegarLoop]: 609 mSDtfsCounter, 1 mSDsluCounter, 607 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 1216 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-20 21:26:37,373 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 1216 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-20 21:26:37,376 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3504 states. [2024-11-20 21:26:37,450 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3504 to 3504. [2024-11-20 21:26:37,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3504 states, 3402 states have (on average 1.4047619047619047) internal successors, (4779), 3414 states have internal predecessors, (4779), 54 states have call successors, (54), 42 states have call predecessors, (54), 36 states have return successors, (61), 47 states have call predecessors, (61), 54 states have call successors, (61) [2024-11-20 21:26:37,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3504 states to 3504 states and 4894 transitions. [2024-11-20 21:26:37,461 INFO L78 Accepts]: Start accepts. Automaton has 3504 states and 4894 transitions. Word has length 143 [2024-11-20 21:26:37,461 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 21:26:37,462 INFO L471 AbstractCegarLoop]: Abstraction has 3504 states and 4894 transitions. [2024-11-20 21:26:37,462 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 56.5) internal successors, (113), 3 states have internal predecessors, (113), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-20 21:26:37,462 INFO L276 IsEmpty]: Start isEmpty. Operand 3504 states and 4894 transitions. [2024-11-20 21:26:37,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2024-11-20 21:26:37,463 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 21:26:37,463 INFO L215 NwaCegarLoop]: trace histogram [6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 21:26:37,473 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2024-11-20 21:26:37,664 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2024-11-20 21:26:37,665 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-20 21:26:37,665 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 21:26:37,665 INFO L85 PathProgramCache]: Analyzing trace with hash -1843769401, now seen corresponding path program 1 times [2024-11-20 21:26:37,665 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 21:26:37,665 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1853552624] [2024-11-20 21:26:37,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 21:26:37,665 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 21:26:37,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 21:26:38,116 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-20 21:26:38,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 21:26:38,123 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-20 21:26:38,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 21:26:38,132 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-11-20 21:26:38,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 21:26:38,351 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-11-20 21:26:38,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 21:26:38,357 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-11-20 21:26:38,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 21:26:38,365 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 7 proven. 30 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-20 21:26:38,365 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 21:26:38,365 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1853552624] [2024-11-20 21:26:38,365 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1853552624] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-20 21:26:38,365 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [554058644] [2024-11-20 21:26:38,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 21:26:38,365 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 21:26:38,365 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 21:26:38,367 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-20 21:26:38,368 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-11-20 21:26:38,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 21:26:38,859 INFO L255 TraceCheckSpWp]: Trace formula consists of 898 conjuncts, 29 conjuncts are in the unsatisfiable core [2024-11-20 21:26:38,863 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 21:26:39,048 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 35 proven. 10 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-20 21:26:39,048 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-20 21:26:39,312 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 7 proven. 30 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-20 21:26:39,313 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [554058644] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-20 21:26:39,313 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-20 21:26:39,313 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 14, 9] total 28 [2024-11-20 21:26:39,313 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1990979827] [2024-11-20 21:26:39,313 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-20 21:26:39,315 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2024-11-20 21:26:39,315 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 21:26:39,316 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2024-11-20 21:26:39,316 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=130, Invalid=626, Unknown=0, NotChecked=0, Total=756 [2024-11-20 21:26:39,317 INFO L87 Difference]: Start difference. First operand 3504 states and 4894 transitions. Second operand has 28 states, 28 states have (on average 6.107142857142857) internal successors, (171), 26 states have internal predecessors, (171), 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) [2024-11-20 21:26:40,970 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 21:26:40,970 INFO L93 Difference]: Finished difference Result 6454 states and 9000 transitions. [2024-11-20 21:26:40,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2024-11-20 21:26:40,970 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 6.107142857142857) internal successors, (171), 26 states have internal predecessors, (171), 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 [2024-11-20 21:26:40,970 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 21:26:40,978 INFO L225 Difference]: With dead ends: 6454 [2024-11-20 21:26:40,978 INFO L226 Difference]: Without dead ends: 2976 [2024-11-20 21:26:40,983 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 339 GetRequests, 283 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 654 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=527, Invalid=2779, Unknown=0, NotChecked=0, Total=3306 [2024-11-20 21:26:40,984 INFO L432 NwaCegarLoop]: 490 mSDtfsCounter, 131 mSDsluCounter, 6642 mSDsCounter, 0 mSdLazyCounter, 1055 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 131 SdHoareTripleChecker+Valid, 7132 SdHoareTripleChecker+Invalid, 1104 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 1055 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-20 21:26:40,984 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [131 Valid, 7132 Invalid, 1104 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 1055 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-20 21:26:40,985 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2976 states. [2024-11-20 21:26:41,060 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2976 to 2954. [2024-11-20 21:26:41,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2954 states, 2852 states have (on average 1.3832398316970547) internal successors, (3945), 2864 states have internal predecessors, (3945), 54 states have call successors, (54), 42 states have call predecessors, (54), 36 states have return successors, (61), 47 states have call predecessors, (61), 54 states have call successors, (61) [2024-11-20 21:26:41,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2954 states to 2954 states and 4060 transitions. [2024-11-20 21:26:41,068 INFO L78 Accepts]: Start accepts. Automaton has 2954 states and 4060 transitions. Word has length 144 [2024-11-20 21:26:41,069 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 21:26:41,069 INFO L471 AbstractCegarLoop]: Abstraction has 2954 states and 4060 transitions. [2024-11-20 21:26:41,069 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 6.107142857142857) internal successors, (171), 26 states have internal predecessors, (171), 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) [2024-11-20 21:26:41,069 INFO L276 IsEmpty]: Start isEmpty. Operand 2954 states and 4060 transitions. [2024-11-20 21:26:41,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2024-11-20 21:26:41,070 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 21:26:41,070 INFO L215 NwaCegarLoop]: trace histogram [15, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 21:26:41,082 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2024-11-20 21:26:41,271 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2024-11-20 21:26:41,272 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-20 21:26:41,272 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 21:26:41,272 INFO L85 PathProgramCache]: Analyzing trace with hash 1010961766, now seen corresponding path program 2 times [2024-11-20 21:26:41,272 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 21:26:41,272 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1373532879] [2024-11-20 21:26:41,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 21:26:41,273 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 21:26:41,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 21:26:42,013 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-20 21:26:42,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 21:26:42,018 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-20 21:26:42,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 21:26:42,027 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-11-20 21:26:42,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 21:26:42,427 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-11-20 21:26:42,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 21:26:42,432 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-11-20 21:26:42,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 21:26:42,445 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 7 proven. 126 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2024-11-20 21:26:42,445 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 21:26:42,445 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1373532879] [2024-11-20 21:26:42,445 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1373532879] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-20 21:26:42,446 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1616226320] [2024-11-20 21:26:42,446 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-20 21:26:42,446 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 21:26:42,446 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 21:26:42,448 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-20 21:26:42,450 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-11-20 21:26:42,943 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-20 21:26:42,943 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-20 21:26:42,947 INFO L255 TraceCheckSpWp]: Trace formula consists of 1033 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-20 21:26:42,950 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 21:26:42,954 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-11-20 21:26:43,331 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 3 [2024-11-20 21:26:43,424 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 29 treesize of output 13 [2024-11-20 21:26:43,450 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 149 trivial. 0 not checked. [2024-11-20 21:26:43,450 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-20 21:26:51,902 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1616226320] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-20 21:26:51,902 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-20 21:26:51,902 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 8] total 24 [2024-11-20 21:26:51,902 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1914620746] [2024-11-20 21:26:51,902 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-20 21:26:51,903 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2024-11-20 21:26:51,903 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 21:26:51,903 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2024-11-20 21:26:51,903 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=95, Invalid=773, Unknown=2, NotChecked=0, Total=870 [2024-11-20 21:26:51,904 INFO L87 Difference]: Start difference. First operand 2954 states and 4060 transitions. Second operand has 24 states, 24 states have (on average 10.458333333333334) internal successors, (251), 22 states have internal predecessors, (251), 4 states have call successors, (10), 4 states have call predecessors, (10), 3 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) [2024-11-20 21:26:54,578 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 21:26:54,578 INFO L93 Difference]: Finished difference Result 7247 states and 10018 transitions. [2024-11-20 21:26:54,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2024-11-20 21:26:54,578 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 10.458333333333334) internal successors, (251), 22 states have internal predecessors, (251), 4 states have call successors, (10), 4 states have call predecessors, (10), 3 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) Word has length 153 [2024-11-20 21:26:54,578 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 21:26:54,588 INFO L225 Difference]: With dead ends: 7247 [2024-11-20 21:26:54,589 INFO L226 Difference]: Without dead ends: 4415 [2024-11-20 21:26:54,594 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 249 GetRequests, 177 SyntacticMatches, 7 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 831 ImplicationChecksByTransitivity, 9.9s TimeCoverageRelationStatistics Valid=441, Invalid=3979, Unknown=2, NotChecked=0, Total=4422 [2024-11-20 21:26:54,595 INFO L432 NwaCegarLoop]: 673 mSDtfsCounter, 715 mSDsluCounter, 12302 mSDsCounter, 0 mSdLazyCounter, 1943 mSolverCounterSat, 79 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 728 SdHoareTripleChecker+Valid, 12975 SdHoareTripleChecker+Invalid, 2022 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 79 IncrementalHoareTripleChecker+Valid, 1943 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-20 21:26:54,595 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [728 Valid, 12975 Invalid, 2022 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [79 Valid, 1943 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-20 21:26:54,598 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4415 states. [2024-11-20 21:26:54,733 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4415 to 3519. [2024-11-20 21:26:54,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3519 states, 3406 states have (on average 1.3943041691133293) internal successors, (4749), 3421 states have internal predecessors, (4749), 60 states have call successors, (60), 47 states have call predecessors, (60), 41 states have return successors, (67), 50 states have call predecessors, (67), 60 states have call successors, (67) [2024-11-20 21:26:54,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3519 states to 3519 states and 4876 transitions. [2024-11-20 21:26:54,742 INFO L78 Accepts]: Start accepts. Automaton has 3519 states and 4876 transitions. Word has length 153 [2024-11-20 21:26:54,742 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 21:26:54,742 INFO L471 AbstractCegarLoop]: Abstraction has 3519 states and 4876 transitions. [2024-11-20 21:26:54,742 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 10.458333333333334) internal successors, (251), 22 states have internal predecessors, (251), 4 states have call successors, (10), 4 states have call predecessors, (10), 3 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) [2024-11-20 21:26:54,743 INFO L276 IsEmpty]: Start isEmpty. Operand 3519 states and 4876 transitions. [2024-11-20 21:26:54,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2024-11-20 21:26:54,744 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 21:26:54,744 INFO L215 NwaCegarLoop]: trace histogram [16, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 21:26:54,760 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2024-11-20 21:26:54,945 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 21:26:54,945 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-20 21:26:54,946 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 21:26:54,947 INFO L85 PathProgramCache]: Analyzing trace with hash -438878558, now seen corresponding path program 1 times [2024-11-20 21:26:54,947 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 21:26:54,947 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [816208965] [2024-11-20 21:26:54,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 21:26:54,947 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 21:26:55,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 21:26:55,491 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-20 21:26:55,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 21:26:55,502 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-20 21:26:55,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 21:26:55,515 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-11-20 21:26:55,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 21:26:55,545 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-20 21:26:55,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 21:26:55,583 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-11-20 21:26:55,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 21:26:55,600 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2024-11-20 21:26:55,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 21:26:55,621 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2024-11-20 21:26:55,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 21:26:55,626 INFO L134 CoverageAnalysis]: Checked inductivity of 210 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 198 trivial. 0 not checked. [2024-11-20 21:26:55,626 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 21:26:55,626 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [816208965] [2024-11-20 21:26:55,627 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [816208965] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-20 21:26:55,627 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1755564521] [2024-11-20 21:26:55,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 21:26:55,627 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 21:26:55,627 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 21:26:55,630 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-20 21:26:55,631 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2024-11-20 21:26:56,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 21:26:56,215 INFO L255 TraceCheckSpWp]: Trace formula consists of 1194 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-20 21:26:56,217 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 21:26:56,320 INFO L134 CoverageAnalysis]: Checked inductivity of 210 backedges. 116 proven. 6 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2024-11-20 21:26:56,320 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-20 21:26:56,551 INFO L134 CoverageAnalysis]: Checked inductivity of 210 backedges. 8 proven. 13 refuted. 0 times theorem prover too weak. 189 trivial. 0 not checked. [2024-11-20 21:26:56,552 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1755564521] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-20 21:26:56,552 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-20 21:26:56,552 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7, 10] total 19 [2024-11-20 21:26:56,552 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1606257903] [2024-11-20 21:26:56,552 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-20 21:26:56,553 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-11-20 21:26:56,553 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 21:26:56,553 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-11-20 21:26:56,553 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=290, Unknown=0, NotChecked=0, Total=380 [2024-11-20 21:26:56,553 INFO L87 Difference]: Start difference. First operand 3519 states and 4876 transitions. Second operand has 20 states, 19 states have (on average 10.157894736842104) internal successors, (193), 15 states have internal predecessors, (193), 7 states have call successors, (22), 10 states have call predecessors, (22), 8 states have return successors, (18), 6 states have call predecessors, (18), 7 states have call successors, (18) [2024-11-20 21:26:57,692 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 21:26:57,692 INFO L93 Difference]: Finished difference Result 9070 states and 12890 transitions. [2024-11-20 21:26:57,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2024-11-20 21:26:57,692 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 19 states have (on average 10.157894736842104) internal successors, (193), 15 states have internal predecessors, (193), 7 states have call successors, (22), 10 states have call predecessors, (22), 8 states have return successors, (18), 6 states have call predecessors, (18), 7 states have call successors, (18) Word has length 167 [2024-11-20 21:26:57,693 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 21:26:57,705 INFO L225 Difference]: With dead ends: 9070 [2024-11-20 21:26:57,706 INFO L226 Difference]: Without dead ends: 7119 [2024-11-20 21:26:57,710 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 380 GetRequests, 341 SyntacticMatches, 1 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 295 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=455, Invalid=1105, Unknown=0, NotChecked=0, Total=1560 [2024-11-20 21:26:57,711 INFO L432 NwaCegarLoop]: 1073 mSDtfsCounter, 4001 mSDsluCounter, 7206 mSDsCounter, 0 mSdLazyCounter, 668 mSolverCounterSat, 105 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4003 SdHoareTripleChecker+Valid, 8279 SdHoareTripleChecker+Invalid, 773 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 105 IncrementalHoareTripleChecker+Valid, 668 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-20 21:26:57,711 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4003 Valid, 8279 Invalid, 773 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [105 Valid, 668 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-20 21:26:57,715 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7119 states. [2024-11-20 21:26:57,840 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7119 to 4545. [2024-11-20 21:26:57,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4545 states, 4448 states have (on average 1.4197392086330936) internal successors, (6315), 4462 states have internal predecessors, (6315), 50 states have call successors, (50), 41 states have call predecessors, (50), 36 states have return successors, (51), 41 states have call predecessors, (51), 50 states have call successors, (51) [2024-11-20 21:26:57,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4545 states to 4545 states and 6416 transitions. [2024-11-20 21:26:57,853 INFO L78 Accepts]: Start accepts. Automaton has 4545 states and 6416 transitions. Word has length 167 [2024-11-20 21:26:57,853 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 21:26:57,853 INFO L471 AbstractCegarLoop]: Abstraction has 4545 states and 6416 transitions. [2024-11-20 21:26:57,854 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 19 states have (on average 10.157894736842104) internal successors, (193), 15 states have internal predecessors, (193), 7 states have call successors, (22), 10 states have call predecessors, (22), 8 states have return successors, (18), 6 states have call predecessors, (18), 7 states have call successors, (18) [2024-11-20 21:26:57,854 INFO L276 IsEmpty]: Start isEmpty. Operand 4545 states and 6416 transitions. [2024-11-20 21:26:57,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 216 [2024-11-20 21:26:57,856 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 21:26:57,856 INFO L215 NwaCegarLoop]: trace histogram [16, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 21:26:57,868 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2024-11-20 21:26:58,056 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24,16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 21:26:58,059 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-20 21:26:58,059 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 21:26:58,060 INFO L85 PathProgramCache]: Analyzing trace with hash -657578736, now seen corresponding path program 1 times [2024-11-20 21:26:58,060 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 21:26:58,061 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2108970563] [2024-11-20 21:26:58,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 21:26:58,061 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 21:26:58,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 21:26:58,265 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-20 21:26:58,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 21:26:58,271 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-20 21:26:58,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 21:26:58,282 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-11-20 21:26:58,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 21:26:58,304 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-20 21:26:58,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 21:26:58,309 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-11-20 21:26:58,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 21:26:58,320 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 168 trivial. 0 not checked. [2024-11-20 21:26:58,320 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 21:26:58,320 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2108970563] [2024-11-20 21:26:58,320 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2108970563] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 21:26:58,320 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 21:26:58,320 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-20 21:26:58,320 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1332434495] [2024-11-20 21:26:58,320 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 21:26:58,321 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-20 21:26:58,321 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 21:26:58,322 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-20 21:26:58,323 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-20 21:26:58,323 INFO L87 Difference]: Start difference. First operand 4545 states and 6416 transitions. Second operand has 5 states, 5 states have (on average 35.6) internal successors, (178), 3 states have internal predecessors, (178), 1 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-20 21:26:58,606 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 21:26:58,606 INFO L93 Difference]: Finished difference Result 5698 states and 8066 transitions. [2024-11-20 21:26:58,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-20 21:26:58,607 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 35.6) internal successors, (178), 3 states have internal predecessors, (178), 1 states have call successors, (5), 3 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 215 [2024-11-20 21:26:58,607 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 21:26:58,613 INFO L225 Difference]: With dead ends: 5698 [2024-11-20 21:26:58,613 INFO L226 Difference]: Without dead ends: 2271 [2024-11-20 21:26:58,616 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-20 21:26:58,616 INFO L432 NwaCegarLoop]: 504 mSDtfsCounter, 58 mSDsluCounter, 1368 mSDsCounter, 0 mSdLazyCounter, 184 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 1872 SdHoareTripleChecker+Invalid, 203 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 184 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-20 21:26:58,617 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [59 Valid, 1872 Invalid, 203 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 184 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-20 21:26:58,618 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2271 states. [2024-11-20 21:26:58,685 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2271 to 2076. [2024-11-20 21:26:58,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2076 states, 1995 states have (on average 1.3483709273182958) internal successors, (2690), 2008 states have internal predecessors, (2690), 39 states have call successors, (39), 35 states have call predecessors, (39), 32 states have return successors, (40), 32 states have call predecessors, (40), 39 states have call successors, (40) [2024-11-20 21:26:58,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2076 states to 2076 states and 2769 transitions. [2024-11-20 21:26:58,692 INFO L78 Accepts]: Start accepts. Automaton has 2076 states and 2769 transitions. Word has length 215 [2024-11-20 21:26:58,692 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 21:26:58,693 INFO L471 AbstractCegarLoop]: Abstraction has 2076 states and 2769 transitions. [2024-11-20 21:26:58,693 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 35.6) internal successors, (178), 3 states have internal predecessors, (178), 1 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-20 21:26:58,693 INFO L276 IsEmpty]: Start isEmpty. Operand 2076 states and 2769 transitions. [2024-11-20 21:26:58,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2024-11-20 21:26:58,695 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 21:26:58,695 INFO L215 NwaCegarLoop]: trace histogram [16, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 21:26:58,696 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-11-20 21:26:58,696 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-20 21:26:58,696 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 21:26:58,696 INFO L85 PathProgramCache]: Analyzing trace with hash -673930970, now seen corresponding path program 1 times [2024-11-20 21:26:58,696 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 21:26:58,697 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [631756826] [2024-11-20 21:26:58,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 21:26:58,697 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 21:26:58,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 21:26:58,964 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-20 21:26:58,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 21:26:58,972 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-20 21:26:58,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 21:26:58,982 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-11-20 21:26:58,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 21:26:59,010 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-20 21:26:59,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 21:26:59,018 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-11-20 21:26:59,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 21:26:59,033 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 168 trivial. 0 not checked. [2024-11-20 21:26:59,033 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 21:26:59,033 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [631756826] [2024-11-20 21:26:59,033 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [631756826] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 21:26:59,034 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 21:26:59,034 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-20 21:26:59,034 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1499392127] [2024-11-20 21:26:59,034 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 21:26:59,034 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-20 21:26:59,034 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 21:26:59,035 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-20 21:26:59,035 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-20 21:26:59,035 INFO L87 Difference]: Start difference. First operand 2076 states and 2769 transitions. Second operand has 5 states, 4 states have (on average 45.0) internal successors, (180), 3 states have internal predecessors, (180), 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) [2024-11-20 21:26:59,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 21:26:59,342 INFO L93 Difference]: Finished difference Result 2393 states and 3231 transitions. [2024-11-20 21:26:59,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-20 21:26:59,342 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 45.0) internal successors, (180), 3 states have internal predecessors, (180), 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 217 [2024-11-20 21:26:59,343 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 21:26:59,349 INFO L225 Difference]: With dead ends: 2393 [2024-11-20 21:26:59,349 INFO L226 Difference]: Without dead ends: 2391 [2024-11-20 21:26:59,349 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2024-11-20 21:26:59,350 INFO L432 NwaCegarLoop]: 499 mSDtfsCounter, 342 mSDsluCounter, 1163 mSDsCounter, 0 mSdLazyCounter, 154 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 345 SdHoareTripleChecker+Valid, 1662 SdHoareTripleChecker+Invalid, 174 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 154 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-20 21:26:59,350 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [345 Valid, 1662 Invalid, 174 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 154 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-20 21:26:59,351 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2391 states. [2024-11-20 21:26:59,428 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2391 to 2362. [2024-11-20 21:26:59,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2362 states, 2282 states have (on average 1.3637160385626643) internal successors, (3112), 2294 states have internal predecessors, (3112), 38 states have call successors, (38), 35 states have call predecessors, (38), 32 states have return successors, (39), 32 states have call predecessors, (39), 38 states have call successors, (39) [2024-11-20 21:26:59,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2362 states to 2362 states and 3189 transitions. [2024-11-20 21:26:59,434 INFO L78 Accepts]: Start accepts. Automaton has 2362 states and 3189 transitions. Word has length 217 [2024-11-20 21:26:59,435 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 21:26:59,435 INFO L471 AbstractCegarLoop]: Abstraction has 2362 states and 3189 transitions. [2024-11-20 21:26:59,435 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 45.0) internal successors, (180), 3 states have internal predecessors, (180), 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) [2024-11-20 21:26:59,435 INFO L276 IsEmpty]: Start isEmpty. Operand 2362 states and 3189 transitions. [2024-11-20 21:26:59,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 229 [2024-11-20 21:26:59,437 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 21:26:59,438 INFO L215 NwaCegarLoop]: trace histogram [16, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 21:26:59,438 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-11-20 21:26:59,438 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-20 21:26:59,438 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 21:26:59,438 INFO L85 PathProgramCache]: Analyzing trace with hash 1886198910, now seen corresponding path program 1 times [2024-11-20 21:26:59,438 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 21:26:59,438 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [75957912] [2024-11-20 21:26:59,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 21:26:59,439 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 21:26:59,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 21:26:59,730 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-20 21:26:59,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 21:26:59,737 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-20 21:26:59,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 21:26:59,749 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-11-20 21:26:59,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 21:26:59,777 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-20 21:26:59,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 21:26:59,783 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-11-20 21:26:59,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 21:26:59,797 INFO L134 CoverageAnalysis]: Checked inductivity of 172 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 168 trivial. 0 not checked. [2024-11-20 21:26:59,798 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 21:26:59,798 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [75957912] [2024-11-20 21:26:59,798 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [75957912] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-20 21:26:59,798 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019491079] [2024-11-20 21:26:59,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 21:26:59,798 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 21:26:59,798 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 21:26:59,801 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-20 21:26:59,803 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2024-11-20 21:27:00,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 21:27:00,462 INFO L255 TraceCheckSpWp]: Trace formula consists of 1304 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-20 21:27:00,465 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 21:27:00,479 INFO L134 CoverageAnalysis]: Checked inductivity of 172 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 172 trivial. 0 not checked. [2024-11-20 21:27:00,479 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-20 21:27:00,479 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2019491079] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 21:27:00,479 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-20 21:27:00,479 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2024-11-20 21:27:00,480 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1463201399] [2024-11-20 21:27:00,480 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 21:27:00,480 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 21:27:00,480 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 21:27:00,480 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 21:27:00,481 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-20 21:27:00,481 INFO L87 Difference]: Start difference. First operand 2362 states and 3189 transitions. Second operand has 3 states, 3 states have (on average 62.666666666666664) internal successors, (188), 3 states have internal predecessors, (188), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-20 21:27:00,582 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 21:27:00,582 INFO L93 Difference]: Finished difference Result 3379 states and 4641 transitions. [2024-11-20 21:27:00,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 21:27:00,583 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 62.666666666666664) internal successors, (188), 3 states have internal predecessors, (188), 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 228 [2024-11-20 21:27:00,583 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 21:27:00,589 INFO L225 Difference]: With dead ends: 3379 [2024-11-20 21:27:00,590 INFO L226 Difference]: Without dead ends: 2482 [2024-11-20 21:27:00,591 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 239 GetRequests, 234 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-20 21:27:00,591 INFO L432 NwaCegarLoop]: 509 mSDtfsCounter, 8 mSDsluCounter, 494 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 1003 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-20 21:27:00,591 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 1003 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-20 21:27:00,593 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2482 states. [2024-11-20 21:27:00,668 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2482 to 2482. [2024-11-20 21:27:00,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2482 states, 2402 states have (on average 1.3455453788509575) internal successors, (3232), 2414 states have internal predecessors, (3232), 38 states have call successors, (38), 35 states have call predecessors, (38), 32 states have return successors, (39), 32 states have call predecessors, (39), 38 states have call successors, (39) [2024-11-20 21:27:00,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2482 states to 2482 states and 3309 transitions. [2024-11-20 21:27:00,675 INFO L78 Accepts]: Start accepts. Automaton has 2482 states and 3309 transitions. Word has length 228 [2024-11-20 21:27:00,676 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 21:27:00,676 INFO L471 AbstractCegarLoop]: Abstraction has 2482 states and 3309 transitions. [2024-11-20 21:27:00,676 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 62.666666666666664) internal successors, (188), 3 states have internal predecessors, (188), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-20 21:27:00,676 INFO L276 IsEmpty]: Start isEmpty. Operand 2482 states and 3309 transitions. [2024-11-20 21:27:00,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 229 [2024-11-20 21:27:00,678 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 21:27:00,678 INFO L215 NwaCegarLoop]: trace histogram [16, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 21:27:00,691 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2024-11-20 21:27:00,878 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2024-11-20 21:27:00,879 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-20 21:27:00,879 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 21:27:00,879 INFO L85 PathProgramCache]: Analyzing trace with hash -1192614660, now seen corresponding path program 1 times [2024-11-20 21:27:00,880 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 21:27:00,880 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [670035590] [2024-11-20 21:27:00,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 21:27:00,880 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 21:27:00,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 21:27:01,166 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-20 21:27:01,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 21:27:01,173 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-20 21:27:01,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 21:27:01,185 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-11-20 21:27:01,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 21:27:01,210 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-20 21:27:01,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 21:27:01,218 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-11-20 21:27:01,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 21:27:01,232 INFO L134 CoverageAnalysis]: Checked inductivity of 172 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 168 trivial. 0 not checked. [2024-11-20 21:27:01,232 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 21:27:01,233 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [670035590] [2024-11-20 21:27:01,233 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [670035590] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-20 21:27:01,233 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2013084057] [2024-11-20 21:27:01,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 21:27:01,233 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 21:27:01,233 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 21:27:01,235 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-20 21:27:01,237 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2024-11-20 21:27:01,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 21:27:01,922 INFO L255 TraceCheckSpWp]: Trace formula consists of 1308 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-20 21:27:01,926 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 21:27:01,949 INFO L134 CoverageAnalysis]: Checked inductivity of 172 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 172 trivial. 0 not checked. [2024-11-20 21:27:01,949 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-20 21:27:01,949 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2013084057] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 21:27:01,949 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-20 21:27:01,950 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 8 [2024-11-20 21:27:01,950 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [165545220] [2024-11-20 21:27:01,950 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 21:27:01,950 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-20 21:27:01,950 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 21:27:01,951 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-20 21:27:01,951 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-20 21:27:01,951 INFO L87 Difference]: Start difference. First operand 2482 states and 3309 transitions. Second operand has 4 states, 4 states have (on average 47.0) internal successors, (188), 4 states have internal predecessors, (188), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-20 21:27:02,052 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 21:27:02,052 INFO L93 Difference]: Finished difference Result 3361 states and 4536 transitions. [2024-11-20 21:27:02,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-20 21:27:02,053 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 47.0) internal successors, (188), 4 states have internal predecessors, (188), 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 228 [2024-11-20 21:27:02,053 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 21:27:02,058 INFO L225 Difference]: With dead ends: 3361 [2024-11-20 21:27:02,058 INFO L226 Difference]: Without dead ends: 2398 [2024-11-20 21:27:02,059 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 240 GetRequests, 233 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-20 21:27:02,060 INFO L432 NwaCegarLoop]: 501 mSDtfsCounter, 105 mSDsluCounter, 909 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 105 SdHoareTripleChecker+Valid, 1410 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-20 21:27:02,060 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [105 Valid, 1410 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-20 21:27:02,061 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2398 states. [2024-11-20 21:27:02,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2398 to 2398. [2024-11-20 21:27:02,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2398 states, 2318 states have (on average 1.3399482312338222) internal successors, (3106), 2330 states have internal predecessors, (3106), 38 states have call successors, (38), 35 states have call predecessors, (38), 32 states have return successors, (39), 32 states have call predecessors, (39), 38 states have call successors, (39) [2024-11-20 21:27:02,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2398 states to 2398 states and 3183 transitions. [2024-11-20 21:27:02,144 INFO L78 Accepts]: Start accepts. Automaton has 2398 states and 3183 transitions. Word has length 228 [2024-11-20 21:27:02,144 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 21:27:02,144 INFO L471 AbstractCegarLoop]: Abstraction has 2398 states and 3183 transitions. [2024-11-20 21:27:02,145 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 47.0) internal successors, (188), 4 states have internal predecessors, (188), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-20 21:27:02,145 INFO L276 IsEmpty]: Start isEmpty. Operand 2398 states and 3183 transitions. [2024-11-20 21:27:02,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 229 [2024-11-20 21:27:02,146 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 21:27:02,147 INFO L215 NwaCegarLoop]: trace histogram [16, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 21:27:02,159 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Ended with exit code 0 [2024-11-20 21:27:02,347 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2024-11-20 21:27:02,348 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-20 21:27:02,348 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 21:27:02,348 INFO L85 PathProgramCache]: Analyzing trace with hash 844920074, now seen corresponding path program 1 times [2024-11-20 21:27:02,348 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 21:27:02,349 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [928395752] [2024-11-20 21:27:02,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 21:27:02,349 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 21:27:02,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 21:27:02,597 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-20 21:27:02,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 21:27:02,605 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-20 21:27:02,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 21:27:02,616 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-11-20 21:27:02,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 21:27:02,642 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-20 21:27:02,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 21:27:02,649 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-11-20 21:27:02,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 21:27:02,662 INFO L134 CoverageAnalysis]: Checked inductivity of 172 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 168 trivial. 0 not checked. [2024-11-20 21:27:02,662 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 21:27:02,663 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [928395752] [2024-11-20 21:27:02,663 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [928395752] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-20 21:27:02,663 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [781303528] [2024-11-20 21:27:02,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 21:27:02,663 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 21:27:02,663 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 21:27:02,666 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-20 21:27:02,667 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2024-11-20 21:27:03,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 21:27:03,402 INFO L255 TraceCheckSpWp]: Trace formula consists of 1280 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-20 21:27:03,406 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 21:27:03,631 INFO L134 CoverageAnalysis]: Checked inductivity of 172 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 168 trivial. 0 not checked. [2024-11-20 21:27:03,631 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-20 21:27:03,631 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [781303528] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 21:27:03,631 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-20 21:27:03,631 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2024-11-20 21:27:03,631 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [821147576] [2024-11-20 21:27:03,631 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 21:27:03,632 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-20 21:27:03,632 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 21:27:03,632 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-20 21:27:03,632 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-20 21:27:03,632 INFO L87 Difference]: Start difference. First operand 2398 states and 3183 transitions. Second operand has 4 states, 3 states have (on average 63.666666666666664) internal successors, (191), 3 states have internal predecessors, (191), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-20 21:27:03,765 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 21:27:03,765 INFO L93 Difference]: Finished difference Result 2399 states and 3183 transitions. [2024-11-20 21:27:03,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-20 21:27:03,766 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 63.666666666666664) internal successors, (191), 3 states have internal predecessors, (191), 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 228 [2024-11-20 21:27:03,766 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 21:27:03,771 INFO L225 Difference]: With dead ends: 2399 [2024-11-20 21:27:03,771 INFO L226 Difference]: Without dead ends: 2398 [2024-11-20 21:27:03,772 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 239 GetRequests, 234 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-20 21:27:03,772 INFO L432 NwaCegarLoop]: 734 mSDtfsCounter, 539 mSDsluCounter, 442 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 539 SdHoareTripleChecker+Valid, 1176 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-20 21:27:03,773 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [539 Valid, 1176 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-20 21:27:03,774 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2398 states. [2024-11-20 21:27:03,852 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2398 to 2397. [2024-11-20 21:27:03,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2397 states, 2318 states have (on average 1.3386540120793788) internal successors, (3103), 2329 states have internal predecessors, (3103), 38 states have call successors, (38), 35 states have call predecessors, (38), 32 states have return successors, (39), 32 states have call predecessors, (39), 38 states have call successors, (39) [2024-11-20 21:27:03,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2397 states to 2397 states and 3180 transitions. [2024-11-20 21:27:03,859 INFO L78 Accepts]: Start accepts. Automaton has 2397 states and 3180 transitions. Word has length 228 [2024-11-20 21:27:03,860 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 21:27:03,860 INFO L471 AbstractCegarLoop]: Abstraction has 2397 states and 3180 transitions. [2024-11-20 21:27:03,860 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 63.666666666666664) internal successors, (191), 3 states have internal predecessors, (191), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-20 21:27:03,860 INFO L276 IsEmpty]: Start isEmpty. Operand 2397 states and 3180 transitions. [2024-11-20 21:27:03,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 230 [2024-11-20 21:27:03,862 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 21:27:03,862 INFO L215 NwaCegarLoop]: trace histogram [16, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 21:27:03,877 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2024-11-20 21:27:04,062 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 21:27:04,063 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-20 21:27:04,064 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 21:27:04,064 INFO L85 PathProgramCache]: Analyzing trace with hash 422719913, now seen corresponding path program 1 times [2024-11-20 21:27:04,064 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 21:27:04,064 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1195320169] [2024-11-20 21:27:04,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 21:27:04,064 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 21:27:04,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 21:27:04,321 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-20 21:27:04,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 21:27:04,328 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-20 21:27:04,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 21:27:04,339 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-11-20 21:27:04,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 21:27:04,364 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-20 21:27:04,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 21:27:04,371 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-11-20 21:27:04,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 21:27:04,385 INFO L134 CoverageAnalysis]: Checked inductivity of 173 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 168 trivial. 0 not checked. [2024-11-20 21:27:04,385 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 21:27:04,385 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1195320169] [2024-11-20 21:27:04,386 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1195320169] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-20 21:27:04,386 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [391844115] [2024-11-20 21:27:04,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 21:27:04,386 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 21:27:04,387 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 21:27:04,389 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-20 21:27:04,391 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2024-11-20 21:27:05,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 21:27:05,101 INFO L255 TraceCheckSpWp]: Trace formula consists of 1281 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-20 21:27:05,105 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 21:27:05,305 INFO L134 CoverageAnalysis]: Checked inductivity of 173 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 168 trivial. 0 not checked. [2024-11-20 21:27:05,305 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-20 21:27:05,522 INFO L134 CoverageAnalysis]: Checked inductivity of 173 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 168 trivial. 0 not checked. [2024-11-20 21:27:05,523 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [391844115] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-20 21:27:05,523 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-20 21:27:05,523 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 2, 3] total 8 [2024-11-20 21:27:05,523 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2000654778] [2024-11-20 21:27:05,523 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-20 21:27:05,524 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-20 21:27:05,524 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 21:27:05,525 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-20 21:27:05,525 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2024-11-20 21:27:05,525 INFO L87 Difference]: Start difference. First operand 2397 states and 3180 transitions. Second operand has 9 states, 8 states have (on average 68.75) internal successors, (550), 7 states have internal predecessors, (550), 4 states have call successors, (14), 4 states have call predecessors, (14), 2 states have return successors, (14), 4 states have call predecessors, (14), 4 states have call successors, (14) [2024-11-20 21:27:06,075 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 21:27:06,075 INFO L93 Difference]: Finished difference Result 4319 states and 5799 transitions. [2024-11-20 21:27:06,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-20 21:27:06,076 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 68.75) internal successors, (550), 7 states have internal predecessors, (550), 4 states have call successors, (14), 4 states have call predecessors, (14), 2 states have return successors, (14), 4 states have call predecessors, (14), 4 states have call successors, (14) Word has length 229 [2024-11-20 21:27:06,076 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 21:27:06,082 INFO L225 Difference]: With dead ends: 4319 [2024-11-20 21:27:06,082 INFO L226 Difference]: Without dead ends: 4318 [2024-11-20 21:27:06,083 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 480 GetRequests, 463 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=114, Invalid=228, Unknown=0, NotChecked=0, Total=342 [2024-11-20 21:27:06,083 INFO L432 NwaCegarLoop]: 491 mSDtfsCounter, 1966 mSDsluCounter, 1935 mSDsCounter, 0 mSdLazyCounter, 193 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1975 SdHoareTripleChecker+Valid, 2426 SdHoareTripleChecker+Invalid, 243 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 193 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-20 21:27:06,084 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1975 Valid, 2426 Invalid, 243 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 193 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-20 21:27:06,086 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4318 states. [2024-11-20 21:27:06,249 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4318 to 4152. [2024-11-20 21:27:06,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4152 states, 4073 states have (on average 1.3606678124232752) internal successors, (5542), 4084 states have internal predecessors, (5542), 38 states have call successors, (38), 35 states have call predecessors, (38), 32 states have return successors, (39), 32 states have call predecessors, (39), 38 states have call successors, (39) [2024-11-20 21:27:06,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4152 states to 4152 states and 5619 transitions. [2024-11-20 21:27:06,259 INFO L78 Accepts]: Start accepts. Automaton has 4152 states and 5619 transitions. Word has length 229 [2024-11-20 21:27:06,259 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 21:27:06,259 INFO L471 AbstractCegarLoop]: Abstraction has 4152 states and 5619 transitions. [2024-11-20 21:27:06,259 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 68.75) internal successors, (550), 7 states have internal predecessors, (550), 4 states have call successors, (14), 4 states have call predecessors, (14), 2 states have return successors, (14), 4 states have call predecessors, (14), 4 states have call successors, (14) [2024-11-20 21:27:06,259 INFO L276 IsEmpty]: Start isEmpty. Operand 4152 states and 5619 transitions. [2024-11-20 21:27:06,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 230 [2024-11-20 21:27:06,261 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 21:27:06,261 INFO L215 NwaCegarLoop]: trace histogram [16, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 21:27:06,275 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Ended with exit code 0 [2024-11-20 21:27:06,462 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30,20 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 21:27:06,462 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-20 21:27:06,463 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 21:27:06,463 INFO L85 PathProgramCache]: Analyzing trace with hash 888260111, now seen corresponding path program 1 times [2024-11-20 21:27:06,463 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 21:27:06,463 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1825117576] [2024-11-20 21:27:06,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 21:27:06,463 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 21:27:06,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 21:27:07,370 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-20 21:27:07,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 21:27:07,378 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-20 21:27:07,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 21:27:07,392 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-11-20 21:27:07,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 21:27:07,417 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-20 21:27:07,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 21:27:07,424 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-11-20 21:27:07,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 21:27:07,439 INFO L134 CoverageAnalysis]: Checked inductivity of 246 backedges. 0 proven. 80 refuted. 0 times theorem prover too weak. 166 trivial. 0 not checked. [2024-11-20 21:27:07,439 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 21:27:07,439 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1825117576] [2024-11-20 21:27:07,439 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1825117576] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-20 21:27:07,439 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1419513436] [2024-11-20 21:27:07,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 21:27:07,440 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 21:27:07,440 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 21:27:07,442 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-20 21:27:07,444 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2024-11-20 21:27:08,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 21:27:08,331 INFO L255 TraceCheckSpWp]: Trace formula consists of 1394 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-20 21:27:08,335 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 21:27:08,348 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 15 treesize of output 1 [2024-11-20 21:27:08,441 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 17 treesize of output 9 [2024-11-20 21:27:08,450 INFO L134 CoverageAnalysis]: Checked inductivity of 246 backedges. 80 proven. 0 refuted. 0 times theorem prover too weak. 166 trivial. 0 not checked. [2024-11-20 21:27:08,450 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-20 21:27:08,451 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1419513436] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 21:27:08,451 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-20 21:27:08,451 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [8] total 11 [2024-11-20 21:27:08,451 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2027444743] [2024-11-20 21:27:08,451 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 21:27:08,451 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-20 21:27:08,451 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 21:27:08,452 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-20 21:27:08,452 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2024-11-20 21:27:08,452 INFO L87 Difference]: Start difference. First operand 4152 states and 5619 transitions. Second operand has 5 states, 4 states have (on average 48.25) internal successors, (193), 5 states have internal predecessors, (193), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-20 21:27:08,616 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 21:27:08,617 INFO L93 Difference]: Finished difference Result 4640 states and 6255 transitions. [2024-11-20 21:27:08,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-20 21:27:08,617 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 48.25) internal successors, (193), 5 states have internal predecessors, (193), 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 229 [2024-11-20 21:27:08,618 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 21:27:08,623 INFO L225 Difference]: With dead ends: 4640 [2024-11-20 21:27:08,623 INFO L226 Difference]: Without dead ends: 4639 [2024-11-20 21:27:08,624 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 246 GetRequests, 235 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2024-11-20 21:27:08,624 INFO L432 NwaCegarLoop]: 503 mSDtfsCounter, 390 mSDsluCounter, 1293 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 399 SdHoareTripleChecker+Valid, 1796 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-20 21:27:08,624 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [399 Valid, 1796 Invalid, 70 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-20 21:27:08,627 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4639 states. [2024-11-20 21:27:08,751 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4639 to 4151. [2024-11-20 21:27:08,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4151 states, 4073 states have (on average 1.3594402160569605) internal successors, (5537), 4083 states have internal predecessors, (5537), 38 states have call successors, (38), 35 states have call predecessors, (38), 32 states have return successors, (39), 32 states have call predecessors, (39), 38 states have call successors, (39) [2024-11-20 21:27:08,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4151 states to 4151 states and 5614 transitions. [2024-11-20 21:27:08,759 INFO L78 Accepts]: Start accepts. Automaton has 4151 states and 5614 transitions. Word has length 229 [2024-11-20 21:27:08,760 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 21:27:08,760 INFO L471 AbstractCegarLoop]: Abstraction has 4151 states and 5614 transitions. [2024-11-20 21:27:08,760 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 48.25) internal successors, (193), 5 states have internal predecessors, (193), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-20 21:27:08,760 INFO L276 IsEmpty]: Start isEmpty. Operand 4151 states and 5614 transitions. [2024-11-20 21:27:08,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 231 [2024-11-20 21:27:08,761 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 21:27:08,762 INFO L215 NwaCegarLoop]: trace histogram [16, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 21:27:08,774 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2024-11-20 21:27:08,962 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable31 [2024-11-20 21:27:08,962 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-20 21:27:08,962 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 21:27:08,963 INFO L85 PathProgramCache]: Analyzing trace with hash 1766260505, now seen corresponding path program 1 times [2024-11-20 21:27:08,963 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 21:27:08,963 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1537105457] [2024-11-20 21:27:08,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 21:27:08,963 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 21:27:09,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 21:27:09,331 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-20 21:27:09,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 21:27:09,336 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-20 21:27:09,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 21:27:09,350 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-11-20 21:27:09,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 21:27:09,368 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-20 21:27:09,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 21:27:09,372 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-11-20 21:27:09,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 21:27:09,381 INFO L134 CoverageAnalysis]: Checked inductivity of 247 backedges. 80 proven. 0 refuted. 0 times theorem prover too weak. 167 trivial. 0 not checked. [2024-11-20 21:27:09,382 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 21:27:09,382 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1537105457] [2024-11-20 21:27:09,382 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1537105457] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 21:27:09,382 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 21:27:09,382 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-20 21:27:09,383 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [561567077] [2024-11-20 21:27:09,383 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 21:27:09,384 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-20 21:27:09,384 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 21:27:09,385 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-20 21:27:09,385 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-20 21:27:09,385 INFO L87 Difference]: Start difference. First operand 4151 states and 5614 transitions. Second operand has 7 states, 6 states have (on average 32.333333333333336) internal successors, (194), 5 states have internal predecessors, (194), 1 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5)