./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/uthash-2.0.2/uthash_BER_test6-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 3061b6dc Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/uthash-2.0.2/uthash_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-tmp.dk.eval-assert-order-craig-3061b6d-m [2024-11-19 13:29:31,651 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-19 13:29:31,723 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-19 13:29:31,729 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-19 13:29:31,731 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-19 13:29:31,758 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-19 13:29:31,759 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-19 13:29:31,760 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-19 13:29:31,761 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-19 13:29:31,762 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-19 13:29:31,762 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-19 13:29:31,762 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-19 13:29:31,763 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-19 13:29:31,765 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-19 13:29:31,765 INFO L153 SettingsManager]: * Use SBE=true [2024-11-19 13:29:31,766 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-19 13:29:31,766 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-19 13:29:31,766 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-19 13:29:31,767 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-19 13:29:31,767 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-19 13:29:31,767 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-19 13:29:31,768 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-19 13:29:31,768 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-19 13:29:31,768 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-19 13:29:31,769 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-19 13:29:31,769 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-19 13:29:31,769 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-19 13:29:31,770 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-19 13:29:31,770 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-19 13:29:31,770 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-19 13:29:31,771 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-19 13:29:31,771 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-19 13:29:31,771 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-19 13:29:31,771 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-19 13:29:31,772 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 13:29:31,772 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-19 13:29:31,772 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-19 13:29:31,772 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-19 13:29:31,773 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-19 13:29:31,773 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-19 13:29:31,773 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-19 13:29:31,774 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-19 13:29:31,774 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-19 13:29:31,774 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-19 13:29:31,774 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 05edfd344a133924af20e7887ded3d695179bf474d7b39ea2b7287f4a108ff8d [2024-11-19 13:29:32,060 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-19 13:29:32,085 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-19 13:29:32,089 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-19 13:29:32,090 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-19 13:29:32,090 INFO L274 PluginConnector]: CDTParser initialized [2024-11-19 13:29:32,091 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/uthash-2.0.2/uthash_BER_test6-1.i [2024-11-19 13:29:33,535 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-19 13:29:33,841 INFO L384 CDTParser]: Found 1 translation units. [2024-11-19 13:29:33,842 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test6-1.i [2024-11-19 13:29:33,868 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/db574c512/c349d0004fc6470992820b850b05e010/FLAGdd8a9dd87 [2024-11-19 13:29:33,884 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/db574c512/c349d0004fc6470992820b850b05e010 [2024-11-19 13:29:33,888 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-19 13:29:33,889 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-19 13:29:33,891 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-19 13:29:33,892 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-19 13:29:33,897 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-19 13:29:33,898 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 01:29:33" (1/1) ... [2024-11-19 13:29:33,899 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@12f55b11 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:29:33, skipping insertion in model container [2024-11-19 13:29:33,900 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 01:29:33" (1/1) ... [2024-11-19 13:29:33,968 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-19 13:29:34,572 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 13:29:34,590 INFO L200 MainTranslator]: Completed pre-run [2024-11-19 13:29:34,697 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 13:29:34,766 INFO L204 MainTranslator]: Completed translation [2024-11-19 13:29:34,767 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:29:34 WrapperNode [2024-11-19 13:29:34,767 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-19 13:29:34,768 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-19 13:29:34,769 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-19 13:29:34,769 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-19 13:29:34,776 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:29:34" (1/1) ... [2024-11-19 13:29:34,827 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:29:34" (1/1) ... [2024-11-19 13:29:34,908 INFO L138 Inliner]: procedures = 282, calls = 300, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 1487 [2024-11-19 13:29:34,909 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-19 13:29:34,910 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-19 13:29:34,910 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-19 13:29:34,910 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-19 13:29:34,921 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:29:34" (1/1) ... [2024-11-19 13:29:34,922 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:29:34" (1/1) ... [2024-11-19 13:29:34,937 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:29:34" (1/1) ... [2024-11-19 13:29:35,023 INFO L175 MemorySlicer]: Split 268 memory accesses to 4 slices as follows [2, 34, 12, 220]. 82 percent of accesses are in the largest equivalence class. The 12 initializations are split as follows [2, 0, 10, 0]. The 54 writes are split as follows [0, 4, 1, 49]. [2024-11-19 13:29:35,023 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:29:34" (1/1) ... [2024-11-19 13:29:35,024 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:29:34" (1/1) ... [2024-11-19 13:29:35,062 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:29:34" (1/1) ... [2024-11-19 13:29:35,097 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:29:34" (1/1) ... [2024-11-19 13:29:35,115 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:29:34" (1/1) ... [2024-11-19 13:29:35,122 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:29:34" (1/1) ... [2024-11-19 13:29:35,146 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-19 13:29:35,147 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-19 13:29:35,148 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-19 13:29:35,148 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-19 13:29:35,149 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:29:34" (1/1) ... [2024-11-19 13:29:35,154 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 13:29:35,162 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 13:29:35,178 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-19 13:29:35,180 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-19 13:29:35,216 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2024-11-19 13:29:35,217 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2024-11-19 13:29:35,217 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-19 13:29:35,217 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-19 13:29:35,217 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-19 13:29:35,217 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-19 13:29:35,217 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-11-19 13:29:35,217 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-19 13:29:35,217 INFO L130 BoogieDeclarations]: Found specification of procedure alt_bzero [2024-11-19 13:29:35,217 INFO L138 BoogieDeclarations]: Found implementation of procedure alt_bzero [2024-11-19 13:29:35,217 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-19 13:29:35,218 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-19 13:29:35,218 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-19 13:29:35,218 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-19 13:29:35,218 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-19 13:29:35,218 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-19 13:29:35,218 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-19 13:29:35,218 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-19 13:29:35,218 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-19 13:29:35,219 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-19 13:29:35,219 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-19 13:29:35,219 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-19 13:29:35,220 INFO L130 BoogieDeclarations]: Found specification of procedure alt_malloc [2024-11-19 13:29:35,220 INFO L138 BoogieDeclarations]: Found implementation of procedure alt_malloc [2024-11-19 13:29:35,220 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-19 13:29:35,220 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-19 13:29:35,220 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-19 13:29:35,220 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-11-19 13:29:35,220 INFO L130 BoogieDeclarations]: Found specification of procedure alt_free [2024-11-19 13:29:35,220 INFO L138 BoogieDeclarations]: Found implementation of procedure alt_free [2024-11-19 13:29:35,220 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-19 13:29:35,220 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-19 13:29:35,220 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-19 13:29:35,220 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-19 13:29:35,221 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-19 13:29:35,221 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-19 13:29:35,426 INFO L238 CfgBuilder]: Building ICFG [2024-11-19 13:29:35,428 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-19 13:29:36,761 INFO L? ?]: Removed 345 outVars from TransFormulas that were not future-live. [2024-11-19 13:29:36,761 INFO L287 CfgBuilder]: Performing block encoding [2024-11-19 13:29:36,787 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-19 13:29:36,791 INFO L316 CfgBuilder]: Removed 63 assume(true) statements. [2024-11-19 13:29:36,791 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 01:29:36 BoogieIcfgContainer [2024-11-19 13:29:36,791 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-19 13:29:36,793 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-19 13:29:36,794 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-19 13:29:36,797 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-19 13:29:36,798 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 01:29:33" (1/3) ... [2024-11-19 13:29:36,798 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58895602 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 01:29:36, skipping insertion in model container [2024-11-19 13:29:36,799 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:29:34" (2/3) ... [2024-11-19 13:29:36,799 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58895602 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 01:29:36, skipping insertion in model container [2024-11-19 13:29:36,799 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 01:29:36" (3/3) ... [2024-11-19 13:29:36,800 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_BER_test6-1.i [2024-11-19 13:29:36,817 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-19 13:29:36,818 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 14 error locations. [2024-11-19 13:29:36,901 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-19 13:29:36,908 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;@2579c9dc, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-19 13:29:36,909 INFO L334 AbstractCegarLoop]: Starting to check reachability of 14 error locations. [2024-11-19 13:29:36,915 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) [2024-11-19 13:29:36,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-19 13:29:36,921 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 13:29:36,921 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 13:29:36,922 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-19 13:29:36,926 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 13:29:36,926 INFO L85 PathProgramCache]: Analyzing trace with hash 1635847084, now seen corresponding path program 1 times [2024-11-19 13:29:36,932 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 13:29:36,933 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [996412129] [2024-11-19 13:29:36,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 13:29:36,933 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 13:29:37,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 13:29:37,153 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 13:29:37,153 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 13:29:37,153 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [996412129] [2024-11-19 13:29:37,154 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [996412129] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 13:29:37,156 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 13:29:37,157 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 13:29:37,158 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1214145152] [2024-11-19 13:29:37,159 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 13:29:37,168 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-19 13:29:37,169 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 13:29:37,199 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-19 13:29:37,200 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-19 13:29:37,203 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) [2024-11-19 13:29:37,276 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 13:29:37,277 INFO L93 Difference]: Finished difference Result 917 states and 1441 transitions. [2024-11-19 13:29:37,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-19 13:29:37,279 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2024-11-19 13:29:37,280 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 13:29:37,291 INFO L225 Difference]: With dead ends: 917 [2024-11-19 13:29:37,291 INFO L226 Difference]: Without dead ends: 443 [2024-11-19 13:29:37,298 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-19 13:29:37,302 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 [2024-11-19 13:29:37,303 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] [2024-11-19 13:29:37,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 443 states. [2024-11-19 13:29:37,367 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 443 to 443. [2024-11-19 13:29:37,369 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) [2024-11-19 13:29:37,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 443 states to 443 states and 621 transitions. [2024-11-19 13:29:37,375 INFO L78 Accepts]: Start accepts. Automaton has 443 states and 621 transitions. Word has length 8 [2024-11-19 13:29:37,377 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 13:29:37,378 INFO L471 AbstractCegarLoop]: Abstraction has 443 states and 621 transitions. [2024-11-19 13:29:37,378 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 13:29:37,378 INFO L276 IsEmpty]: Start isEmpty. Operand 443 states and 621 transitions. [2024-11-19 13:29:37,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-19 13:29:37,379 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 13:29:37,379 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 13:29:37,379 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-19 13:29:37,380 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-19 13:29:37,380 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 13:29:37,380 INFO L85 PathProgramCache]: Analyzing trace with hash 1635849006, now seen corresponding path program 1 times [2024-11-19 13:29:37,380 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 13:29:37,381 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1820007907] [2024-11-19 13:29:37,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 13:29:37,381 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 13:29:37,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-19 13:29:37,429 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2110344457] [2024-11-19 13:29:37,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 13:29:37,429 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 13:29:37,429 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 13:29:37,431 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 13:29:37,432 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-19 13:29:37,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 13:29:37,619 INFO L255 TraceCheckSpWp]: Trace formula consists of 120 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-19 13:29:37,624 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 13:29:37,696 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 [2024-11-19 13:29:37,725 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 22 treesize of output 10 [2024-11-19 13:29:37,740 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 13:29:37,740 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 13:29:37,740 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 13:29:37,741 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1820007907] [2024-11-19 13:29:37,742 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-19 13:29:37,742 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2110344457] [2024-11-19 13:29:37,743 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2110344457] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 13:29:37,743 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 13:29:37,743 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 13:29:37,746 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [420493523] [2024-11-19 13:29:37,746 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 13:29:37,747 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 13:29:37,747 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 13:29:37,747 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 13:29:37,748 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-19 13:29:37,748 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) [2024-11-19 13:29:37,916 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 13:29:37,917 INFO L93 Difference]: Finished difference Result 852 states and 1209 transitions. [2024-11-19 13:29:37,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-19 13:29:37,918 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2024-11-19 13:29:37,918 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 13:29:37,922 INFO L225 Difference]: With dead ends: 852 [2024-11-19 13:29:37,922 INFO L226 Difference]: Without dead ends: 851 [2024-11-19 13:29:37,923 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-19 13:29:37,924 INFO L432 NwaCegarLoop]: 596 mSDtfsCounter, 563 mSDsluCounter, 1183 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 572 SdHoareTripleChecker+Valid, 1779 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-19 13:29:37,924 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [572 Valid, 1779 Invalid, 84 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-19 13:29:37,926 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 851 states. [2024-11-19 13:29:37,946 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 851 to 449. [2024-11-19 13:29:37,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 449 states, 421 states have (on average 1.4441805225653206) internal successors, (608), 435 states have internal predecessors, (608), 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) [2024-11-19 13:29:37,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 449 states to 449 states and 628 transitions. [2024-11-19 13:29:37,949 INFO L78 Accepts]: Start accepts. Automaton has 449 states and 628 transitions. Word has length 8 [2024-11-19 13:29:37,949 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 13:29:37,949 INFO L471 AbstractCegarLoop]: Abstraction has 449 states and 628 transitions. [2024-11-19 13:29:37,950 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 13:29:37,950 INFO L276 IsEmpty]: Start isEmpty. Operand 449 states and 628 transitions. [2024-11-19 13:29:37,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-11-19 13:29:37,950 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 13:29:37,950 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 13:29:37,969 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-19 13:29:38,151 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 13:29:38,151 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-19 13:29:38,152 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 13:29:38,152 INFO L85 PathProgramCache]: Analyzing trace with hash -828288263, now seen corresponding path program 1 times [2024-11-19 13:29:38,152 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 13:29:38,152 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1950581081] [2024-11-19 13:29:38,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 13:29:38,152 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 13:29:38,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-19 13:29:38,220 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [129430768] [2024-11-19 13:29:38,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 13:29:38,222 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 13:29:38,223 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 13:29:38,225 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 13:29:38,227 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-19 13:29:38,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 13:29:38,396 INFO L255 TraceCheckSpWp]: Trace formula consists of 121 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-19 13:29:38,399 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 13:29:38,407 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-11-19 13:29:38,439 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 13:29:38,439 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 13:29:38,439 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 13:29:38,439 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1950581081] [2024-11-19 13:29:38,439 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-19 13:29:38,440 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [129430768] [2024-11-19 13:29:38,440 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [129430768] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 13:29:38,440 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 13:29:38,440 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 13:29:38,440 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [250721391] [2024-11-19 13:29:38,440 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 13:29:38,441 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 13:29:38,441 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 13:29:38,441 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 13:29:38,442 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-19 13:29:38,442 INFO L87 Difference]: Start difference. First operand 449 states and 628 transitions. Second operand has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 13:29:38,627 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 13:29:38,627 INFO L93 Difference]: Finished difference Result 851 states and 1208 transitions. [2024-11-19 13:29:38,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-19 13:29:38,628 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 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 9 [2024-11-19 13:29:38,628 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 13:29:38,632 INFO L225 Difference]: With dead ends: 851 [2024-11-19 13:29:38,632 INFO L226 Difference]: Without dead ends: 850 [2024-11-19 13:29:38,633 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-19 13:29:38,634 INFO L432 NwaCegarLoop]: 597 mSDtfsCounter, 561 mSDsluCounter, 1183 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 570 SdHoareTripleChecker+Valid, 1780 SdHoareTripleChecker+Invalid, 83 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-19 13:29:38,634 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [570 Valid, 1780 Invalid, 83 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-19 13:29:38,636 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 850 states. [2024-11-19 13:29:38,649 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 850 to 450. [2024-11-19 13:29:38,650 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) [2024-11-19 13:29:38,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 450 states to 450 states and 629 transitions. [2024-11-19 13:29:38,652 INFO L78 Accepts]: Start accepts. Automaton has 450 states and 629 transitions. Word has length 9 [2024-11-19 13:29:38,652 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 13:29:38,653 INFO L471 AbstractCegarLoop]: Abstraction has 450 states and 629 transitions. [2024-11-19 13:29:38,653 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 13:29:38,655 INFO L276 IsEmpty]: Start isEmpty. Operand 450 states and 629 transitions. [2024-11-19 13:29:38,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2024-11-19 13:29:38,659 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 13:29:38,659 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 13:29:38,677 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-19 13:29:38,860 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,SelfDestructingSolverStorable2 [2024-11-19 13:29:38,861 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-19 13:29:38,862 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 13:29:38,862 INFO L85 PathProgramCache]: Analyzing trace with hash 185472285, now seen corresponding path program 1 times [2024-11-19 13:29:38,862 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 13:29:38,862 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1280043370] [2024-11-19 13:29:38,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 13:29:38,862 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 13:29:38,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 13:29:39,199 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 13:29:39,199 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 13:29:39,199 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1280043370] [2024-11-19 13:29:39,199 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1280043370] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 13:29:39,199 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 13:29:39,200 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-19 13:29:39,200 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1326063221] [2024-11-19 13:29:39,200 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 13:29:39,200 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 13:29:39,200 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 13:29:39,201 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 13:29:39,201 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-19 13:29:39,201 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) [2024-11-19 13:29:39,288 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 13:29:39,288 INFO L93 Difference]: Finished difference Result 894 states and 1251 transitions. [2024-11-19 13:29:39,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-19 13:29:39,289 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 64 [2024-11-19 13:29:39,289 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 13:29:39,291 INFO L225 Difference]: With dead ends: 894 [2024-11-19 13:29:39,292 INFO L226 Difference]: Without dead ends: 453 [2024-11-19 13:29:39,293 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-19 13:29:39,293 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 [2024-11-19 13:29:39,294 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] [2024-11-19 13:29:39,298 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 453 states. [2024-11-19 13:29:39,306 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 453 to 450. [2024-11-19 13:29:39,307 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) [2024-11-19 13:29:39,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 450 states to 450 states and 622 transitions. [2024-11-19 13:29:39,309 INFO L78 Accepts]: Start accepts. Automaton has 450 states and 622 transitions. Word has length 64 [2024-11-19 13:29:39,309 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 13:29:39,310 INFO L471 AbstractCegarLoop]: Abstraction has 450 states and 622 transitions. [2024-11-19 13:29:39,310 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 13:29:39,310 INFO L276 IsEmpty]: Start isEmpty. Operand 450 states and 622 transitions. [2024-11-19 13:29:39,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2024-11-19 13:29:39,314 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 13:29:39,315 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 13:29:39,315 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-19 13:29:39,317 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-19 13:29:39,318 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 13:29:39,318 INFO L85 PathProgramCache]: Analyzing trace with hash -878727663, now seen corresponding path program 1 times [2024-11-19 13:29:39,318 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 13:29:39,318 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [200917369] [2024-11-19 13:29:39,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 13:29:39,318 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 13:29:39,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 13:29:39,627 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 13:29:39,627 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 13:29:39,627 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [200917369] [2024-11-19 13:29:39,628 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [200917369] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 13:29:39,628 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 13:29:39,628 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 13:29:39,628 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1013624523] [2024-11-19 13:29:39,628 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 13:29:39,628 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 13:29:39,629 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 13:29:39,629 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 13:29:39,629 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-19 13:29:39,629 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) [2024-11-19 13:29:39,677 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 13:29:39,677 INFO L93 Difference]: Finished difference Result 820 states and 1146 transitions. [2024-11-19 13:29:39,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-19 13:29:39,678 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 64 [2024-11-19 13:29:39,678 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 13:29:39,683 INFO L225 Difference]: With dead ends: 820 [2024-11-19 13:29:39,683 INFO L226 Difference]: Without dead ends: 816 [2024-11-19 13:29:39,684 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-19 13:29:39,686 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 [2024-11-19 13:29:39,686 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] [2024-11-19 13:29:39,688 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 816 states. [2024-11-19 13:29:39,706 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 816 to 808. [2024-11-19 13:29:39,708 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) [2024-11-19 13:29:39,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 808 states to 808 states and 1142 transitions. [2024-11-19 13:29:39,712 INFO L78 Accepts]: Start accepts. Automaton has 808 states and 1142 transitions. Word has length 64 [2024-11-19 13:29:39,713 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 13:29:39,713 INFO L471 AbstractCegarLoop]: Abstraction has 808 states and 1142 transitions. [2024-11-19 13:29:39,713 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 13:29:39,714 INFO L276 IsEmpty]: Start isEmpty. Operand 808 states and 1142 transitions. [2024-11-19 13:29:39,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-11-19 13:29:39,717 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 13:29:39,717 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] [2024-11-19 13:29:39,717 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-19 13:29:39,717 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-19 13:29:39,717 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 13:29:39,718 INFO L85 PathProgramCache]: Analyzing trace with hash 1138317444, now seen corresponding path program 1 times [2024-11-19 13:29:39,718 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 13:29:39,718 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [366074420] [2024-11-19 13:29:39,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 13:29:39,718 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 13:29:39,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 13:29:39,974 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 13:29:39,975 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 13:29:39,975 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [366074420] [2024-11-19 13:29:39,975 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [366074420] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 13:29:39,975 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 13:29:39,975 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-19 13:29:39,975 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [646962853] [2024-11-19 13:29:39,976 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 13:29:39,976 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 13:29:39,976 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 13:29:39,977 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 13:29:39,977 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-19 13:29:39,977 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) [2024-11-19 13:29:40,098 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 13:29:40,098 INFO L93 Difference]: Finished difference Result 1821 states and 2600 transitions. [2024-11-19 13:29:40,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-19 13:29:40,099 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 [2024-11-19 13:29:40,099 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 13:29:40,106 INFO L225 Difference]: With dead ends: 1821 [2024-11-19 13:29:40,107 INFO L226 Difference]: Without dead ends: 1421 [2024-11-19 13:29:40,108 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-19 13:29:40,109 INFO L432 NwaCegarLoop]: 596 mSDtfsCounter, 557 mSDsluCounter, 1177 mSDsCounter, 0 mSdLazyCounter, 76 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 566 SdHoareTripleChecker+Valid, 1773 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 [2024-11-19 13:29:40,109 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [566 Valid, 1773 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 76 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-19 13:29:40,113 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1421 states. [2024-11-19 13:29:40,136 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1421 to 808. [2024-11-19 13:29:40,137 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) [2024-11-19 13:29:40,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 808 states to 808 states and 1141 transitions. [2024-11-19 13:29:40,141 INFO L78 Accepts]: Start accepts. Automaton has 808 states and 1141 transitions. Word has length 70 [2024-11-19 13:29:40,141 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 13:29:40,142 INFO L471 AbstractCegarLoop]: Abstraction has 808 states and 1141 transitions. [2024-11-19 13:29:40,142 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) [2024-11-19 13:29:40,142 INFO L276 IsEmpty]: Start isEmpty. Operand 808 states and 1141 transitions. [2024-11-19 13:29:40,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2024-11-19 13:29:40,143 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 13:29:40,143 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 13:29:40,143 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-19 13:29:40,143 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting alt_bzeroErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-19 13:29:40,144 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 13:29:40,144 INFO L85 PathProgramCache]: Analyzing trace with hash -238535306, now seen corresponding path program 1 times [2024-11-19 13:29:40,144 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 13:29:40,144 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [360044465] [2024-11-19 13:29:40,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 13:29:40,144 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 13:29:40,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 13:29:40,323 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 13:29:40,323 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 13:29:40,323 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [360044465] [2024-11-19 13:29:40,324 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [360044465] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 13:29:40,324 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 13:29:40,324 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 13:29:40,324 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [594704599] [2024-11-19 13:29:40,324 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 13:29:40,324 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 13:29:40,324 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 13:29:40,325 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 13:29:40,325 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 13:29:40,326 INFO L87 Difference]: Start difference. First operand 808 states and 1141 transitions. Second operand has 3 states, 2 states have (on average 35.5) internal successors, (71), 3 states have internal predecessors, (71), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-19 13:29:40,358 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 13:29:40,358 INFO L93 Difference]: Finished difference Result 1038 states and 1455 transitions. [2024-11-19 13:29:40,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 13:29:40,359 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 35.5) internal successors, (71), 3 states have internal predecessors, (71), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 74 [2024-11-19 13:29:40,359 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 13:29:40,363 INFO L225 Difference]: With dead ends: 1038 [2024-11-19 13:29:40,364 INFO L226 Difference]: Without dead ends: 1036 [2024-11-19 13:29:40,364 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 13:29:40,365 INFO L432 NwaCegarLoop]: 612 mSDtfsCounter, 482 mSDsluCounter, 608 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 482 SdHoareTripleChecker+Valid, 1220 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 13:29:40,365 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [482 Valid, 1220 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 13:29:40,367 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1036 states. [2024-11-19 13:29:40,390 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1036 to 1026. [2024-11-19 13:29:40,391 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) [2024-11-19 13:29:40,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1026 states to 1026 states and 1453 transitions. [2024-11-19 13:29:40,395 INFO L78 Accepts]: Start accepts. Automaton has 1026 states and 1453 transitions. Word has length 74 [2024-11-19 13:29:40,396 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 13:29:40,396 INFO L471 AbstractCegarLoop]: Abstraction has 1026 states and 1453 transitions. [2024-11-19 13:29:40,396 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 35.5) internal successors, (71), 3 states have internal predecessors, (71), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-19 13:29:40,396 INFO L276 IsEmpty]: Start isEmpty. Operand 1026 states and 1453 transitions. [2024-11-19 13:29:40,397 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2024-11-19 13:29:40,397 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 13:29:40,398 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 13:29:40,398 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-19 13:29:40,398 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-19 13:29:40,398 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 13:29:40,398 INFO L85 PathProgramCache]: Analyzing trace with hash -676007271, now seen corresponding path program 1 times [2024-11-19 13:29:40,399 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 13:29:40,399 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [709789891] [2024-11-19 13:29:40,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 13:29:40,399 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 13:29:40,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 13:29:40,796 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 13:29:40,796 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 13:29:40,796 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [709789891] [2024-11-19 13:29:40,797 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [709789891] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 13:29:40,797 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1999964896] [2024-11-19 13:29:40,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 13:29:40,797 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 13:29:40,797 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 13:29:40,802 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 13:29:40,804 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-19 13:29:41,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 13:29:41,090 INFO L255 TraceCheckSpWp]: Trace formula consists of 506 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-19 13:29:41,095 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 13:29:41,174 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 13:29:41,176 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 13:29:41,176 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1999964896] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 13:29:41,176 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-19 13:29:41,176 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [7] total 10 [2024-11-19 13:29:41,176 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1333114853] [2024-11-19 13:29:41,176 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 13:29:41,177 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-19 13:29:41,177 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 13:29:41,177 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 13:29:41,177 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2024-11-19 13:29:41,178 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) [2024-11-19 13:29:41,260 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 13:29:41,261 INFO L93 Difference]: Finished difference Result 1394 states and 1975 transitions. [2024-11-19 13:29:41,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-19 13:29:41,261 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 19.5) internal successors, (78), 5 states have internal predecessors, (78), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 83 [2024-11-19 13:29:41,262 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 13:29:41,268 INFO L225 Difference]: With dead ends: 1394 [2024-11-19 13:29:41,268 INFO L226 Difference]: Without dead ends: 1393 [2024-11-19 13:29:41,270 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 82 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2024-11-19 13:29:41,271 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 [2024-11-19 13:29:41,271 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] [2024-11-19 13:29:41,273 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1393 states. [2024-11-19 13:29:41,301 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1393 to 1189. [2024-11-19 13:29:41,304 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) [2024-11-19 13:29:41,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1189 states to 1189 states and 1688 transitions. [2024-11-19 13:29:41,308 INFO L78 Accepts]: Start accepts. Automaton has 1189 states and 1688 transitions. Word has length 83 [2024-11-19 13:29:41,309 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 13:29:41,309 INFO L471 AbstractCegarLoop]: Abstraction has 1189 states and 1688 transitions. [2024-11-19 13:29:41,309 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 19.5) internal successors, (78), 5 states have internal predecessors, (78), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-19 13:29:41,309 INFO L276 IsEmpty]: Start isEmpty. Operand 1189 states and 1688 transitions. [2024-11-19 13:29:41,311 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-11-19 13:29:41,311 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 13:29:41,311 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 13:29:41,330 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-19 13:29:41,512 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 13:29:41,512 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-19 13:29:41,512 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 13:29:41,513 INFO L85 PathProgramCache]: Analyzing trace with hash 518611120, now seen corresponding path program 1 times [2024-11-19 13:29:41,513 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 13:29:41,513 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1946045837] [2024-11-19 13:29:41,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 13:29:41,513 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 13:29:41,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 13:29:41,834 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 13:29:41,835 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 13:29:41,835 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1946045837] [2024-11-19 13:29:41,835 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1946045837] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 13:29:41,835 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1359100839] [2024-11-19 13:29:41,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 13:29:41,835 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 13:29:41,835 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 13:29:41,837 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 13:29:41,838 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-19 13:29:42,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 13:29:42,087 INFO L255 TraceCheckSpWp]: Trace formula consists of 507 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-19 13:29:42,091 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 13:29:42,248 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 13:29:42,248 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 13:29:42,467 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 13:29:42,468 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1359100839] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 13:29:42,468 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 13:29:42,468 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6, 7] total 17 [2024-11-19 13:29:42,468 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [159296240] [2024-11-19 13:29:42,468 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 13:29:42,469 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-19 13:29:42,469 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 13:29:42,469 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-19 13:29:42,469 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=235, Unknown=0, NotChecked=0, Total=306 [2024-11-19 13:29:42,470 INFO L87 Difference]: Start difference. First operand 1189 states and 1688 transitions. Second operand has 18 states, 17 states have (on average 13.235294117647058) internal successors, (225), 15 states have internal predecessors, (225), 5 states have call successors, (8), 6 states have call predecessors, (8), 5 states have return successors, (6), 2 states have call predecessors, (6), 5 states have call successors, (6) [2024-11-19 13:29:43,424 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 13:29:43,425 INFO L93 Difference]: Finished difference Result 3238 states and 4588 transitions. [2024-11-19 13:29:43,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2024-11-19 13:29:43,426 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 13.235294117647058) internal successors, (225), 15 states have internal predecessors, (225), 5 states have call successors, (8), 6 states have call predecessors, (8), 5 states have return successors, (6), 2 states have call predecessors, (6), 5 states have call successors, (6) Word has length 84 [2024-11-19 13:29:43,426 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 13:29:43,444 INFO L225 Difference]: With dead ends: 3238 [2024-11-19 13:29:43,444 INFO L226 Difference]: Without dead ends: 3236 [2024-11-19 13:29:43,446 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 196 GetRequests, 162 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 253 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=376, Invalid=884, Unknown=0, NotChecked=0, Total=1260 [2024-11-19 13:29:43,447 INFO L432 NwaCegarLoop]: 674 mSDtfsCounter, 5260 mSDsluCounter, 7262 mSDsCounter, 0 mSdLazyCounter, 429 mSolverCounterSat, 196 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5270 SdHoareTripleChecker+Valid, 7936 SdHoareTripleChecker+Invalid, 625 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 196 IncrementalHoareTripleChecker+Valid, 429 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-19 13:29:43,448 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5270 Valid, 7936 Invalid, 625 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [196 Valid, 429 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-19 13:29:43,451 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3236 states. [2024-11-19 13:29:43,514 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3236 to 2747. [2024-11-19 13:29:43,518 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) [2024-11-19 13:29:43,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2747 states to 2747 states and 3934 transitions. [2024-11-19 13:29:43,530 INFO L78 Accepts]: Start accepts. Automaton has 2747 states and 3934 transitions. Word has length 84 [2024-11-19 13:29:43,530 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 13:29:43,531 INFO L471 AbstractCegarLoop]: Abstraction has 2747 states and 3934 transitions. [2024-11-19 13:29:43,531 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 13.235294117647058) internal successors, (225), 15 states have internal predecessors, (225), 5 states have call successors, (8), 6 states have call predecessors, (8), 5 states have return successors, (6), 2 states have call predecessors, (6), 5 states have call successors, (6) [2024-11-19 13:29:43,531 INFO L276 IsEmpty]: Start isEmpty. Operand 2747 states and 3934 transitions. [2024-11-19 13:29:43,532 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2024-11-19 13:29:43,533 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 13:29:43,533 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 13:29:43,551 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-19 13:29:43,734 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 13:29:43,735 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-19 13:29:43,735 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 13:29:43,735 INFO L85 PathProgramCache]: Analyzing trace with hash -1558756002, now seen corresponding path program 1 times [2024-11-19 13:29:43,735 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 13:29:43,735 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1296215244] [2024-11-19 13:29:43,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 13:29:43,735 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 13:29:43,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 13:29:43,890 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 13:29:43,890 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 13:29:43,890 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1296215244] [2024-11-19 13:29:43,890 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1296215244] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 13:29:43,890 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 13:29:43,890 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 13:29:43,890 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1042175663] [2024-11-19 13:29:43,891 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 13:29:43,891 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 13:29:43,891 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 13:29:43,891 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 13:29:43,891 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 13:29:43,892 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) [2024-11-19 13:29:44,028 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 13:29:44,028 INFO L93 Difference]: Finished difference Result 5553 states and 7970 transitions. [2024-11-19 13:29:44,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 13:29:44,029 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 82 [2024-11-19 13:29:44,029 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 13:29:44,040 INFO L225 Difference]: With dead ends: 5553 [2024-11-19 13:29:44,040 INFO L226 Difference]: Without dead ends: 2815 [2024-11-19 13:29:44,044 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 13:29:44,045 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 [2024-11-19 13:29:44,045 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] [2024-11-19 13:29:44,048 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2815 states. [2024-11-19 13:29:44,111 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2815 to 2804. [2024-11-19 13:29:44,118 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) [2024-11-19 13:29:44,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2804 states to 2804 states and 4029 transitions. [2024-11-19 13:29:44,130 INFO L78 Accepts]: Start accepts. Automaton has 2804 states and 4029 transitions. Word has length 82 [2024-11-19 13:29:44,131 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 13:29:44,131 INFO L471 AbstractCegarLoop]: Abstraction has 2804 states and 4029 transitions. [2024-11-19 13:29:44,131 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 13:29:44,131 INFO L276 IsEmpty]: Start isEmpty. Operand 2804 states and 4029 transitions. [2024-11-19 13:29:44,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2024-11-19 13:29:44,132 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 13:29:44,132 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 13:29:44,132 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-19 13:29:44,133 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting alt_bzeroErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-19 13:29:44,133 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 13:29:44,134 INFO L85 PathProgramCache]: Analyzing trace with hash -2014395234, now seen corresponding path program 1 times [2024-11-19 13:29:44,134 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 13:29:44,134 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [271923075] [2024-11-19 13:29:44,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 13:29:44,134 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 13:29:44,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 13:29:44,529 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-11-19 13:29:44,529 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 13:29:44,529 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [271923075] [2024-11-19 13:29:44,529 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [271923075] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 13:29:44,530 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [989168992] [2024-11-19 13:29:44,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 13:29:44,530 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 13:29:44,530 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 13:29:44,532 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 13:29:44,533 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-19 13:29:44,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 13:29:44,823 INFO L255 TraceCheckSpWp]: Trace formula consists of 601 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-19 13:29:44,829 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 13:29:44,970 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 7 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 13:29:44,970 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 13:29:45,172 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-11-19 13:29:45,172 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [989168992] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-19 13:29:45,172 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-19 13:29:45,173 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5, 4] total 12 [2024-11-19 13:29:45,173 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [661238487] [2024-11-19 13:29:45,173 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 13:29:45,173 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-19 13:29:45,176 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 13:29:45,176 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-19 13:29:45,176 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=106, Unknown=0, NotChecked=0, Total=156 [2024-11-19 13:29:45,177 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) [2024-11-19 13:29:45,233 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 13:29:45,233 INFO L93 Difference]: Finished difference Result 2804 states and 4029 transitions. [2024-11-19 13:29:45,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 13:29:45,234 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 16.0) internal successors, (80), 6 states have internal predecessors, (80), 2 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 93 [2024-11-19 13:29:45,234 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 13:29:45,245 INFO L225 Difference]: With dead ends: 2804 [2024-11-19 13:29:45,246 INFO L226 Difference]: Without dead ends: 2803 [2024-11-19 13:29:45,247 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 190 GetRequests, 178 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=50, Invalid=106, Unknown=0, NotChecked=0, Total=156 [2024-11-19 13:29:45,248 INFO L432 NwaCegarLoop]: 610 mSDtfsCounter, 604 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 604 SdHoareTripleChecker+Valid, 610 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 13:29:45,248 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [604 Valid, 610 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 13:29:45,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2803 states. [2024-11-19 13:29:45,357 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2803 to 2803. [2024-11-19 13:29:45,361 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) [2024-11-19 13:29:45,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2803 states to 2803 states and 4024 transitions. [2024-11-19 13:29:45,370 INFO L78 Accepts]: Start accepts. Automaton has 2803 states and 4024 transitions. Word has length 93 [2024-11-19 13:29:45,370 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 13:29:45,370 INFO L471 AbstractCegarLoop]: Abstraction has 2803 states and 4024 transitions. [2024-11-19 13:29:45,370 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 16.0) internal successors, (80), 6 states have internal predecessors, (80), 2 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-19 13:29:45,371 INFO L276 IsEmpty]: Start isEmpty. Operand 2803 states and 4024 transitions. [2024-11-19 13:29:45,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-11-19 13:29:45,373 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 13:29:45,373 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 13:29:45,391 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-19 13:29:45,577 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2024-11-19 13:29:45,578 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting alt_bzeroErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-19 13:29:45,579 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 13:29:45,579 INFO L85 PathProgramCache]: Analyzing trace with hash 1978257255, now seen corresponding path program 1 times [2024-11-19 13:29:45,579 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 13:29:45,579 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1481646336] [2024-11-19 13:29:45,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 13:29:45,579 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 13:29:45,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 13:29:45,845 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-11-19 13:29:45,845 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 13:29:45,845 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1481646336] [2024-11-19 13:29:45,845 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1481646336] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 13:29:45,845 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1857080627] [2024-11-19 13:29:45,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 13:29:45,846 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 13:29:45,846 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 13:29:45,847 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 13:29:45,849 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-19 13:29:46,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 13:29:46,145 INFO L255 TraceCheckSpWp]: Trace formula consists of 602 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-19 13:29:46,148 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 13:29:46,296 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 13:29:46,296 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 13:29:46,476 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-11-19 13:29:46,476 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1857080627] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 13:29:46,476 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 13:29:46,476 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4, 5] total 12 [2024-11-19 13:29:46,477 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1902941801] [2024-11-19 13:29:46,477 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 13:29:46,477 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-19 13:29:46,477 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 13:29:46,478 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-19 13:29:46,478 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=100, Unknown=0, NotChecked=0, Total=156 [2024-11-19 13:29:46,478 INFO L87 Difference]: Start difference. First operand 2803 states and 4024 transitions. Second operand has 13 states, 12 states have (on average 19.75) internal successors, (237), 13 states have internal predecessors, (237), 5 states have call successors, (11), 7 states have call predecessors, (11), 6 states have return successors, (9), 5 states have call predecessors, (9), 5 states have call successors, (9) [2024-11-19 13:29:46,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 13:29:46,972 INFO L93 Difference]: Finished difference Result 5398 states and 7716 transitions. [2024-11-19 13:29:46,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-19 13:29:46,973 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 19.75) internal successors, (237), 13 states have internal predecessors, (237), 5 states have call successors, (11), 7 states have call predecessors, (11), 6 states have return successors, (9), 5 states have call predecessors, (9), 5 states have call successors, (9) Word has length 94 [2024-11-19 13:29:46,973 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 13:29:46,992 INFO L225 Difference]: With dead ends: 5398 [2024-11-19 13:29:46,992 INFO L226 Difference]: Without dead ends: 5397 [2024-11-19 13:29:46,996 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 205 GetRequests, 185 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 81 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=152, Invalid=268, Unknown=0, NotChecked=0, Total=420 [2024-11-19 13:29:46,997 INFO L432 NwaCegarLoop]: 579 mSDtfsCounter, 2996 mSDsluCounter, 2866 mSDsCounter, 0 mSdLazyCounter, 212 mSolverCounterSat, 125 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3004 SdHoareTripleChecker+Valid, 3445 SdHoareTripleChecker+Invalid, 337 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 125 IncrementalHoareTripleChecker+Valid, 212 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-19 13:29:46,997 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3004 Valid, 3445 Invalid, 337 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [125 Valid, 212 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-19 13:29:47,002 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5397 states. [2024-11-19 13:29:47,166 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5397 to 5014. [2024-11-19 13:29:47,175 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) [2024-11-19 13:29:47,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5014 states to 5014 states and 7171 transitions. [2024-11-19 13:29:47,191 INFO L78 Accepts]: Start accepts. Automaton has 5014 states and 7171 transitions. Word has length 94 [2024-11-19 13:29:47,191 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 13:29:47,191 INFO L471 AbstractCegarLoop]: Abstraction has 5014 states and 7171 transitions. [2024-11-19 13:29:47,192 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 19.75) internal successors, (237), 13 states have internal predecessors, (237), 5 states have call successors, (11), 7 states have call predecessors, (11), 6 states have return successors, (9), 5 states have call predecessors, (9), 5 states have call successors, (9) [2024-11-19 13:29:47,192 INFO L276 IsEmpty]: Start isEmpty. Operand 5014 states and 7171 transitions. [2024-11-19 13:29:47,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2024-11-19 13:29:47,194 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 13:29:47,194 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 13:29:47,212 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-11-19 13:29:47,395 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 13:29:47,395 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-19 13:29:47,395 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 13:29:47,396 INFO L85 PathProgramCache]: Analyzing trace with hash -1276458826, now seen corresponding path program 1 times [2024-11-19 13:29:47,396 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 13:29:47,396 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [867251354] [2024-11-19 13:29:47,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 13:29:47,396 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 13:29:47,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 13:29:47,778 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-19 13:29:47,778 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 13:29:47,778 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [867251354] [2024-11-19 13:29:47,779 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [867251354] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 13:29:47,779 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 13:29:47,779 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 13:29:47,779 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [938999882] [2024-11-19 13:29:47,779 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 13:29:47,780 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 13:29:47,780 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 13:29:47,781 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 13:29:47,781 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-19 13:29:47,782 INFO L87 Difference]: Start difference. First operand 5014 states and 7171 transitions. Second operand has 4 states, 3 states have (on average 33.333333333333336) internal successors, (100), 4 states have internal predecessors, (100), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-19 13:29:48,035 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 13:29:48,036 INFO L93 Difference]: Finished difference Result 6550 states and 9380 transitions. [2024-11-19 13:29:48,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-19 13:29:48,036 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 33.333333333333336) internal successors, (100), 4 states have internal predecessors, (100), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 120 [2024-11-19 13:29:48,037 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 13:29:48,070 INFO L225 Difference]: With dead ends: 6550 [2024-11-19 13:29:48,071 INFO L226 Difference]: Without dead ends: 6548 [2024-11-19 13:29:48,074 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-19 13:29:48,076 INFO L432 NwaCegarLoop]: 591 mSDtfsCounter, 469 mSDsluCounter, 1169 mSDsCounter, 0 mSdLazyCounter, 77 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 474 SdHoareTripleChecker+Valid, 1760 SdHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 77 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-19 13:29:48,076 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [474 Valid, 1760 Invalid, 79 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 77 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-19 13:29:48,084 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6548 states. [2024-11-19 13:29:48,247 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6548 to 5182. [2024-11-19 13:29:48,259 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) [2024-11-19 13:29:48,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5182 states to 5182 states and 7390 transitions. [2024-11-19 13:29:48,278 INFO L78 Accepts]: Start accepts. Automaton has 5182 states and 7390 transitions. Word has length 120 [2024-11-19 13:29:48,278 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 13:29:48,278 INFO L471 AbstractCegarLoop]: Abstraction has 5182 states and 7390 transitions. [2024-11-19 13:29:48,279 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 33.333333333333336) internal successors, (100), 4 states have internal predecessors, (100), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-19 13:29:48,279 INFO L276 IsEmpty]: Start isEmpty. Operand 5182 states and 7390 transitions. [2024-11-19 13:29:48,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2024-11-19 13:29:48,280 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 13:29:48,280 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 13:29:48,281 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-19 13:29:48,281 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-19 13:29:48,281 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 13:29:48,281 INFO L85 PathProgramCache]: Analyzing trace with hash -543684962, now seen corresponding path program 1 times [2024-11-19 13:29:48,281 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 13:29:48,281 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [646498017] [2024-11-19 13:29:48,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 13:29:48,281 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 13:29:48,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 13:29:48,666 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 6 proven. 7 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-11-19 13:29:48,667 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 13:29:48,667 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [646498017] [2024-11-19 13:29:48,667 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [646498017] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 13:29:48,667 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1887941812] [2024-11-19 13:29:48,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 13:29:48,667 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 13:29:48,668 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 13:29:48,669 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 13:29:48,673 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-19 13:29:49,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 13:29:49,035 INFO L255 TraceCheckSpWp]: Trace formula consists of 795 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-19 13:29:49,041 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 13:29:49,147 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-11-19 13:29:49,147 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 13:29:49,148 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1887941812] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 13:29:49,148 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-19 13:29:49,148 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [7] total 10 [2024-11-19 13:29:49,148 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [311926735] [2024-11-19 13:29:49,148 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 13:29:49,149 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-19 13:29:49,149 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 13:29:49,149 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-19 13:29:49,149 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2024-11-19 13:29:49,150 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) [2024-11-19 13:29:49,403 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 13:29:49,403 INFO L93 Difference]: Finished difference Result 9710 states and 13884 transitions. [2024-11-19 13:29:49,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-19 13:29:49,405 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.142857142857142) internal successors, (113), 5 states have internal predecessors, (113), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) Word has length 127 [2024-11-19 13:29:49,405 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 13:29:49,418 INFO L225 Difference]: With dead ends: 9710 [2024-11-19 13:29:49,419 INFO L226 Difference]: Without dead ends: 4932 [2024-11-19 13:29:49,427 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 137 GetRequests, 126 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=116, Unknown=0, NotChecked=0, Total=156 [2024-11-19 13:29:49,428 INFO L432 NwaCegarLoop]: 590 mSDtfsCounter, 161 mSDsluCounter, 2874 mSDsCounter, 0 mSdLazyCounter, 180 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 162 SdHoareTripleChecker+Valid, 3464 SdHoareTripleChecker+Invalid, 190 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 180 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-19 13:29:49,428 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [162 Valid, 3464 Invalid, 190 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 180 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-19 13:29:49,433 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4932 states. [2024-11-19 13:29:49,602 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4932 to 4932. [2024-11-19 13:29:49,608 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) [2024-11-19 13:29:49,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4932 states to 4932 states and 7048 transitions. [2024-11-19 13:29:49,624 INFO L78 Accepts]: Start accepts. Automaton has 4932 states and 7048 transitions. Word has length 127 [2024-11-19 13:29:49,624 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 13:29:49,624 INFO L471 AbstractCegarLoop]: Abstraction has 4932 states and 7048 transitions. [2024-11-19 13:29:49,625 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.142857142857142) internal successors, (113), 5 states have internal predecessors, (113), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-19 13:29:49,625 INFO L276 IsEmpty]: Start isEmpty. Operand 4932 states and 7048 transitions. [2024-11-19 13:29:49,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2024-11-19 13:29:49,626 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 13:29:49,626 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 13:29:49,646 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-19 13:29:49,830 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 13:29:49,831 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-19 13:29:49,832 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 13:29:49,832 INFO L85 PathProgramCache]: Analyzing trace with hash 1097892489, now seen corresponding path program 1 times [2024-11-19 13:29:49,832 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 13:29:49,832 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1966630797] [2024-11-19 13:29:49,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 13:29:49,832 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 13:29:50,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 13:29:50,419 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-19 13:29:50,419 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 13:29:50,419 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1966630797] [2024-11-19 13:29:50,420 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1966630797] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 13:29:50,420 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1312667302] [2024-11-19 13:29:50,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 13:29:50,420 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 13:29:50,421 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 13:29:50,422 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 13:29:50,423 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-19 13:29:50,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 13:29:50,833 INFO L255 TraceCheckSpWp]: Trace formula consists of 805 conjuncts, 33 conjuncts are in the unsatisfiable core [2024-11-19 13:29:50,838 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 13:29:50,843 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-11-19 13:29:50,862 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-11-19 13:29:50,882 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 27 treesize of output 11 [2024-11-19 13:29:51,549 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-19 13:29:51,549 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 13:29:51,549 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1312667302] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 13:29:51,549 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-19 13:29:51,549 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [5] total 14 [2024-11-19 13:29:51,549 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1726463430] [2024-11-19 13:29:51,549 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 13:29:51,550 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-19 13:29:51,550 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 13:29:51,551 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-19 13:29:51,551 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2024-11-19 13:29:51,551 INFO L87 Difference]: Start difference. First operand 4932 states and 7048 transitions. Second operand has 11 states, 11 states have (on average 10.090909090909092) internal successors, (111), 11 states have internal predecessors, (111), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-19 13:29:53,632 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 13:29:53,633 INFO L93 Difference]: Finished difference Result 11190 states and 16015 transitions. [2024-11-19 13:29:53,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-19 13:29:53,633 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 10.090909090909092) internal successors, (111), 11 states have internal predecessors, (111), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 132 [2024-11-19 13:29:53,633 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 13:29:53,651 INFO L225 Difference]: With dead ends: 11190 [2024-11-19 13:29:53,651 INFO L226 Difference]: Without dead ends: 6347 [2024-11-19 13:29:53,663 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 144 GetRequests, 124 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=101, Invalid=361, Unknown=0, NotChecked=0, Total=462 [2024-11-19 13:29:53,664 INFO L432 NwaCegarLoop]: 590 mSDtfsCounter, 829 mSDsluCounter, 3202 mSDsCounter, 0 mSdLazyCounter, 1227 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 836 SdHoareTripleChecker+Valid, 3792 SdHoareTripleChecker+Invalid, 1234 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 1227 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-19 13:29:53,664 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [836 Valid, 3792 Invalid, 1234 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 1227 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-19 13:29:53,671 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6347 states. [2024-11-19 13:29:53,841 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6347 to 4958. [2024-11-19 13:29:53,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4958 states, 4810 states have (on average 1.4241164241164241) internal successors, (6850), 4829 states have internal predecessors, (6850), 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) [2024-11-19 13:29:53,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4958 states to 4958 states and 7079 transitions. [2024-11-19 13:29:53,868 INFO L78 Accepts]: Start accepts. Automaton has 4958 states and 7079 transitions. Word has length 132 [2024-11-19 13:29:53,869 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 13:29:53,869 INFO L471 AbstractCegarLoop]: Abstraction has 4958 states and 7079 transitions. [2024-11-19 13:29:53,869 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 10.090909090909092) internal successors, (111), 11 states have internal predecessors, (111), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-19 13:29:53,869 INFO L276 IsEmpty]: Start isEmpty. Operand 4958 states and 7079 transitions. [2024-11-19 13:29:53,871 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2024-11-19 13:29:53,871 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 13:29:53,871 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 13:29:53,891 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2024-11-19 13:29:54,075 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2024-11-19 13:29:54,076 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-19 13:29:54,077 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 13:29:54,077 INFO L85 PathProgramCache]: Analyzing trace with hash -677775912, now seen corresponding path program 1 times [2024-11-19 13:29:54,077 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 13:29:54,077 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1006509873] [2024-11-19 13:29:54,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 13:29:54,078 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 13:29:54,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 13:29:54,529 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-19 13:29:54,529 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 13:29:54,529 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1006509873] [2024-11-19 13:29:54,529 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1006509873] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 13:29:54,529 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1843289786] [2024-11-19 13:29:54,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 13:29:54,529 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 13:29:54,530 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 13:29:54,532 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 13:29:54,533 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-19 13:29:54,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 13:29:54,954 INFO L255 TraceCheckSpWp]: Trace formula consists of 806 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-11-19 13:29:54,958 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 13:29:55,048 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 13:29:55,048 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 13:29:55,048 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1843289786] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 13:29:55,048 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-19 13:29:55,049 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [5] total 11 [2024-11-19 13:29:55,049 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [153469000] [2024-11-19 13:29:55,049 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 13:29:55,049 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-19 13:29:55,050 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 13:29:55,050 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-19 13:29:55,050 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2024-11-19 13:29:55,050 INFO L87 Difference]: Start difference. First operand 4958 states and 7079 transitions. Second operand has 9 states, 9 states have (on average 13.666666666666666) internal successors, (123), 9 states have internal predecessors, (123), 3 states have call successors, (5), 2 states have call predecessors, (5), 4 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2024-11-19 13:29:55,234 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 13:29:55,234 INFO L93 Difference]: Finished difference Result 7858 states and 11202 transitions. [2024-11-19 13:29:55,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-19 13:29:55,235 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 13.666666666666666) internal successors, (123), 9 states have internal predecessors, (123), 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 133 [2024-11-19 13:29:55,236 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 13:29:55,243 INFO L225 Difference]: With dead ends: 7858 [2024-11-19 13:29:55,244 INFO L226 Difference]: Without dead ends: 3053 [2024-11-19 13:29:55,251 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 139 GetRequests, 128 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2024-11-19 13:29:55,251 INFO L432 NwaCegarLoop]: 604 mSDtfsCounter, 13 mSDsluCounter, 4196 mSDsCounter, 0 mSdLazyCounter, 99 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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 [2024-11-19 13:29:55,252 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] [2024-11-19 13:29:55,256 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3053 states. [2024-11-19 13:29:55,330 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3053 to 3051. [2024-11-19 13:29:55,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3051 states, 2949 states have (on average 1.4194642251610716) internal successors, (4186), 2965 states have internal predecessors, (4186), 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) [2024-11-19 13:29:55,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3051 states to 3051 states and 4305 transitions. [2024-11-19 13:29:55,342 INFO L78 Accepts]: Start accepts. Automaton has 3051 states and 4305 transitions. Word has length 133 [2024-11-19 13:29:55,343 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 13:29:55,343 INFO L471 AbstractCegarLoop]: Abstraction has 3051 states and 4305 transitions. [2024-11-19 13:29:55,343 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 13.666666666666666) internal successors, (123), 9 states have internal predecessors, (123), 3 states have call successors, (5), 2 states have call predecessors, (5), 4 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2024-11-19 13:29:55,343 INFO L276 IsEmpty]: Start isEmpty. Operand 3051 states and 4305 transitions. [2024-11-19 13:29:55,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-11-19 13:29:55,344 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 13:29:55,345 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] [2024-11-19 13:29:55,365 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-11-19 13:29:55,545 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2024-11-19 13:29:55,546 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-19 13:29:55,546 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 13:29:55,546 INFO L85 PathProgramCache]: Analyzing trace with hash -2089567694, now seen corresponding path program 1 times [2024-11-19 13:29:55,546 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 13:29:55,547 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1221516023] [2024-11-19 13:29:55,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 13:29:55,547 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 13:29:55,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 13:29:56,097 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 6 proven. 10 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-11-19 13:29:56,097 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 13:29:56,097 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1221516023] [2024-11-19 13:29:56,097 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1221516023] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 13:29:56,097 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2068118792] [2024-11-19 13:29:56,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 13:29:56,097 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 13:29:56,098 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 13:29:56,099 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 13:29:56,101 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-19 13:29:56,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 13:29:56,541 INFO L255 TraceCheckSpWp]: Trace formula consists of 836 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-11-19 13:29:56,545 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 13:29:56,646 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 23 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-19 13:29:56,647 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 13:29:56,800 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 6 proven. 10 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-11-19 13:29:56,801 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2068118792] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 13:29:56,801 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 13:29:56,801 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 10, 6] total 17 [2024-11-19 13:29:56,801 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [676887910] [2024-11-19 13:29:56,801 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 13:29:56,802 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-11-19 13:29:56,802 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 13:29:56,803 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-11-19 13:29:56,803 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=220, Unknown=0, NotChecked=0, Total=272 [2024-11-19 13:29:56,803 INFO L87 Difference]: Start difference. First operand 3051 states and 4305 transitions. Second operand has 17 states, 17 states have (on average 9.058823529411764) internal successors, (154), 17 states have internal predecessors, (154), 3 states have call successors, (8), 2 states have call predecessors, (8), 7 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2024-11-19 13:29:57,201 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 13:29:57,201 INFO L93 Difference]: Finished difference Result 6002 states and 8485 transitions. [2024-11-19 13:29:57,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-19 13:29:57,202 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 9.058823529411764) internal successors, (154), 17 states have internal predecessors, (154), 3 states have call successors, (8), 2 states have call predecessors, (8), 7 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 135 [2024-11-19 13:29:57,202 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 13:29:57,210 INFO L225 Difference]: With dead ends: 6002 [2024-11-19 13:29:57,210 INFO L226 Difference]: Without dead ends: 3113 [2024-11-19 13:29:57,215 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 284 GetRequests, 261 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=114, Invalid=486, Unknown=0, NotChecked=0, Total=600 [2024-11-19 13:29:57,216 INFO L432 NwaCegarLoop]: 604 mSDtfsCounter, 31 mSDsluCounter, 5405 mSDsCounter, 0 mSdLazyCounter, 231 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 6009 SdHoareTripleChecker+Invalid, 247 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 231 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-19 13:29:57,216 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 6009 Invalid, 247 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 231 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-19 13:29:57,219 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3113 states. [2024-11-19 13:29:57,300 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3113 to 3091. [2024-11-19 13:29:57,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3091 states, 2988 states have (on average 1.4193440428380188) internal successors, (4241), 3001 states have internal predecessors, (4241), 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) [2024-11-19 13:29:57,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3091 states to 3091 states and 4356 transitions. [2024-11-19 13:29:57,312 INFO L78 Accepts]: Start accepts. Automaton has 3091 states and 4356 transitions. Word has length 135 [2024-11-19 13:29:57,312 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 13:29:57,312 INFO L471 AbstractCegarLoop]: Abstraction has 3091 states and 4356 transitions. [2024-11-19 13:29:57,313 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 9.058823529411764) internal successors, (154), 17 states have internal predecessors, (154), 3 states have call successors, (8), 2 states have call predecessors, (8), 7 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2024-11-19 13:29:57,313 INFO L276 IsEmpty]: Start isEmpty. Operand 3091 states and 4356 transitions. [2024-11-19 13:29:57,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2024-11-19 13:29:57,314 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 13:29:57,314 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] [2024-11-19 13:29:57,334 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2024-11-19 13:29:57,518 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2024-11-19 13:29:57,519 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-19 13:29:57,519 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 13:29:57,520 INFO L85 PathProgramCache]: Analyzing trace with hash -1557750344, now seen corresponding path program 2 times [2024-11-19 13:29:57,520 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 13:29:57,520 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1878054492] [2024-11-19 13:29:57,520 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-19 13:29:57,520 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 13:29:57,736 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-19 13:29:57,736 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 13:29:58,170 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 6 proven. 30 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-19 13:29:58,170 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 13:29:58,170 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1878054492] [2024-11-19 13:29:58,170 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1878054492] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 13:29:58,170 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2114444054] [2024-11-19 13:29:58,171 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-19 13:29:58,171 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 13:29:58,171 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 13:29:58,172 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 13:29:58,173 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-11-19 13:29:58,517 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-19 13:29:58,518 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 13:29:58,520 INFO L255 TraceCheckSpWp]: Trace formula consists of 120 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-19 13:29:58,523 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 13:29:58,532 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2024-11-19 13:29:58,543 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2024-11-19 13:29:58,544 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 13:29:58,544 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2114444054] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 13:29:58,544 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-19 13:29:58,544 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [9] total 10 [2024-11-19 13:29:58,544 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [940941883] [2024-11-19 13:29:58,545 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 13:29:58,546 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 13:29:58,546 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 13:29:58,546 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 13:29:58,546 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2024-11-19 13:29:58,546 INFO L87 Difference]: Start difference. First operand 3091 states and 4356 transitions. Second operand has 3 states, 2 states have (on average 54.5) internal successors, (109), 3 states have internal predecessors, (109), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-19 13:29:58,620 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 13:29:58,621 INFO L93 Difference]: Finished difference Result 3091 states and 4356 transitions. [2024-11-19 13:29:58,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 13:29:58,621 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 54.5) internal successors, (109), 3 states have internal predecessors, (109), 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 139 [2024-11-19 13:29:58,621 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 13:29:58,628 INFO L225 Difference]: With dead ends: 3091 [2024-11-19 13:29:58,629 INFO L226 Difference]: Without dead ends: 3090 [2024-11-19 13:29:58,630 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 147 GetRequests, 139 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2024-11-19 13:29:58,630 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 [2024-11-19 13:29:58,630 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] [2024-11-19 13:29:58,633 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3090 states. [2024-11-19 13:29:58,711 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3090 to 3090. [2024-11-19 13:29:58,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3090 states, 2988 states have (on average 1.4173360107095048) internal successors, (4235), 3000 states have internal predecessors, (4235), 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) [2024-11-19 13:29:58,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3090 states to 3090 states and 4350 transitions. [2024-11-19 13:29:58,723 INFO L78 Accepts]: Start accepts. Automaton has 3090 states and 4350 transitions. Word has length 139 [2024-11-19 13:29:58,724 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 13:29:58,724 INFO L471 AbstractCegarLoop]: Abstraction has 3090 states and 4350 transitions. [2024-11-19 13:29:58,724 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 54.5) internal successors, (109), 3 states have internal predecessors, (109), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-19 13:29:58,724 INFO L276 IsEmpty]: Start isEmpty. Operand 3090 states and 4350 transitions. [2024-11-19 13:29:58,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2024-11-19 13:29:58,725 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 13:29:58,726 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] [2024-11-19 13:29:58,743 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2024-11-19 13:29:58,926 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2024-11-19 13:29:58,927 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-19 13:29:58,927 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 13:29:58,927 INFO L85 PathProgramCache]: Analyzing trace with hash -1045620305, now seen corresponding path program 1 times [2024-11-19 13:29:58,927 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 13:29:58,928 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1427161570] [2024-11-19 13:29:58,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 13:29:58,928 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 13:29:59,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 13:29:59,673 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 7 proven. 30 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-19 13:29:59,673 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 13:29:59,673 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1427161570] [2024-11-19 13:29:59,673 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1427161570] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 13:29:59,673 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1581300344] [2024-11-19 13:29:59,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 13:29:59,673 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 13:29:59,673 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 13:29:59,675 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 13:29:59,676 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-11-19 13:30:00,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 13:30:00,149 INFO L255 TraceCheckSpWp]: Trace formula consists of 897 conjuncts, 29 conjuncts are in the unsatisfiable core [2024-11-19 13:30:00,152 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 13:30:00,363 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 35 proven. 10 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-19 13:30:00,363 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 13:30:00,689 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 7 proven. 30 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-19 13:30:00,690 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1581300344] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 13:30:00,690 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 13:30:00,690 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 14, 9] total 27 [2024-11-19 13:30:00,690 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [644485947] [2024-11-19 13:30:00,690 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 13:30:00,691 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2024-11-19 13:30:00,691 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 13:30:00,691 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2024-11-19 13:30:00,692 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=126, Invalid=576, Unknown=0, NotChecked=0, Total=702 [2024-11-19 13:30:00,692 INFO L87 Difference]: Start difference. First operand 3090 states and 4350 transitions. Second operand has 27 states, 27 states have (on average 6.148148148148148) internal successors, (166), 27 states have internal predecessors, (166), 3 states have call successors, (8), 2 states have call predecessors, (8), 7 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2024-11-19 13:30:01,860 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 13:30:01,861 INFO L93 Difference]: Finished difference Result 5898 states and 8281 transitions. [2024-11-19 13:30:01,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2024-11-19 13:30:01,861 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 27 states have (on average 6.148148148148148) internal successors, (166), 27 states have internal predecessors, (166), 3 states have call successors, (8), 2 states have call predecessors, (8), 7 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 140 [2024-11-19 13:30:01,862 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 13:30:01,868 INFO L225 Difference]: With dead ends: 5898 [2024-11-19 13:30:01,869 INFO L226 Difference]: Without dead ends: 2804 [2024-11-19 13:30:01,873 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 306 GetRequests, 264 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 182 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=380, Invalid=1512, Unknown=0, NotChecked=0, Total=1892 [2024-11-19 13:30:01,873 INFO L432 NwaCegarLoop]: 515 mSDtfsCounter, 66 mSDsluCounter, 6142 mSDsCounter, 0 mSdLazyCounter, 633 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 6657 SdHoareTripleChecker+Invalid, 658 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 633 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-19 13:30:01,874 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 6657 Invalid, 658 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 633 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-19 13:30:01,877 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2804 states. [2024-11-19 13:30:01,956 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2804 to 2773. [2024-11-19 13:30:01,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2773 states, 2671 states have (on average 1.3923624110819917) internal successors, (3719), 2683 states have internal predecessors, (3719), 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) [2024-11-19 13:30:01,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2773 states to 2773 states and 3834 transitions. [2024-11-19 13:30:01,967 INFO L78 Accepts]: Start accepts. Automaton has 2773 states and 3834 transitions. Word has length 140 [2024-11-19 13:30:01,968 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 13:30:01,968 INFO L471 AbstractCegarLoop]: Abstraction has 2773 states and 3834 transitions. [2024-11-19 13:30:01,968 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 27 states have (on average 6.148148148148148) internal successors, (166), 27 states have internal predecessors, (166), 3 states have call successors, (8), 2 states have call predecessors, (8), 7 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2024-11-19 13:30:01,968 INFO L276 IsEmpty]: Start isEmpty. Operand 2773 states and 3834 transitions. [2024-11-19 13:30:01,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2024-11-19 13:30:01,969 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 13:30:01,969 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] [2024-11-19 13:30:01,989 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2024-11-19 13:30:02,173 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 13:30:02,174 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-19 13:30:02,174 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 13:30:02,174 INFO L85 PathProgramCache]: Analyzing trace with hash 2102388862, now seen corresponding path program 2 times [2024-11-19 13:30:02,174 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 13:30:02,174 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [721585194] [2024-11-19 13:30:02,174 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-19 13:30:02,175 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 13:30:02,615 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-19 13:30:02,615 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 13:30:03,546 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 7 proven. 126 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2024-11-19 13:30:03,547 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 13:30:03,547 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [721585194] [2024-11-19 13:30:03,547 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [721585194] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 13:30:03,547 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [719388884] [2024-11-19 13:30:03,547 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-19 13:30:03,548 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 13:30:03,548 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 13:30:03,549 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 13:30:03,550 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-11-19 13:30:04,170 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-19 13:30:04,170 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 13:30:04,177 INFO L255 TraceCheckSpWp]: Trace formula consists of 1032 conjuncts, 32 conjuncts are in the unsatisfiable core [2024-11-19 13:30:04,181 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 13:30:46,769 WARN L286 SmtUtils]: Spent 9.00s on a formula simplification that was a NOOP. DAG size: 31 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify)