./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test6-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 803cd42f Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test6-2.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash e4ea247b245ebcaf5e735452e89c4110c7b9dc9b43836e98484a894783fc3462 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-803cd42-m [2024-11-23 01:25:03,117 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-23 01:25:03,185 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-23 01:25:03,188 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-23 01:25:03,189 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-23 01:25:03,210 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-23 01:25:03,210 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-23 01:25:03,211 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-23 01:25:03,211 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-23 01:25:03,212 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-23 01:25:03,212 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-23 01:25:03,212 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-23 01:25:03,213 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-23 01:25:03,213 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-23 01:25:03,213 INFO L153 SettingsManager]: * Use SBE=true [2024-11-23 01:25:03,214 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-23 01:25:03,214 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-23 01:25:03,214 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-23 01:25:03,215 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-23 01:25:03,215 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-23 01:25:03,215 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-23 01:25:03,219 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-23 01:25:03,219 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-23 01:25:03,219 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-23 01:25:03,220 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-23 01:25:03,220 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-23 01:25:03,220 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-23 01:25:03,220 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-23 01:25:03,220 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-23 01:25:03,221 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-23 01:25:03,221 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-23 01:25:03,221 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-23 01:25:03,221 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-23 01:25:03,221 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-23 01:25:03,222 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 01:25:03,222 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-23 01:25:03,222 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-23 01:25:03,225 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-23 01:25:03,225 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-23 01:25:03,225 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-23 01:25:03,225 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-23 01:25:03,226 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-23 01:25:03,226 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-23 01:25:03,227 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-23 01:25:03,227 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e4ea247b245ebcaf5e735452e89c4110c7b9dc9b43836e98484a894783fc3462 [2024-11-23 01:25:03,477 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-23 01:25:03,497 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-23 01:25:03,499 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-23 01:25:03,500 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-23 01:25:03,501 INFO L274 PluginConnector]: CDTParser initialized [2024-11-23 01:25:03,501 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test6-2.i [2024-11-23 01:25:04,994 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-23 01:25:05,307 INFO L384 CDTParser]: Found 1 translation units. [2024-11-23 01:25:05,308 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test6-2.i [2024-11-23 01:25:05,336 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9187dd9be/4bdf883e3fc14283b6ba4ca291a13591/FLAG67b6a4419 [2024-11-23 01:25:05,558 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9187dd9be/4bdf883e3fc14283b6ba4ca291a13591 [2024-11-23 01:25:05,561 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-23 01:25:05,563 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-23 01:25:05,564 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-23 01:25:05,565 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-23 01:25:05,572 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-23 01:25:05,573 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:25:05" (1/1) ... [2024-11-23 01:25:05,575 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@49ac1aac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:25:05, skipping insertion in model container [2024-11-23 01:25:05,576 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:25:05" (1/1) ... [2024-11-23 01:25:05,635 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-23 01:25:06,279 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-23 01:25:06,297 INFO L200 MainTranslator]: Completed pre-run [2024-11-23 01:25:06,397 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-23 01:25:06,455 INFO L204 MainTranslator]: Completed translation [2024-11-23 01:25:06,456 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:25:06 WrapperNode [2024-11-23 01:25:06,456 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-23 01:25:06,457 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-23 01:25:06,458 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-23 01:25:06,458 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-23 01:25:06,464 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:25:06" (1/1) ... [2024-11-23 01:25:06,510 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:25:06" (1/1) ... [2024-11-23 01:25:06,593 INFO L138 Inliner]: procedures = 282, calls = 353, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 1657 [2024-11-23 01:25:06,594 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-23 01:25:06,595 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-23 01:25:06,595 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-23 01:25:06,595 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-23 01:25:06,605 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:25:06" (1/1) ... [2024-11-23 01:25:06,605 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:25:06" (1/1) ... [2024-11-23 01:25:06,615 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:25:06" (1/1) ... [2024-11-23 01:25:06,711 INFO L175 MemorySlicer]: Split 318 memory accesses to 4 slices as follows [2, 34, 12, 270]. 85 percent of accesses are in the largest equivalence class. The 12 initializations are split as follows [2, 0, 10, 0]. The 62 writes are split as follows [0, 4, 1, 57]. [2024-11-23 01:25:06,711 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:25:06" (1/1) ... [2024-11-23 01:25:06,711 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:25:06" (1/1) ... [2024-11-23 01:25:06,814 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:25:06" (1/1) ... [2024-11-23 01:25:06,832 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:25:06" (1/1) ... [2024-11-23 01:25:06,846 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:25:06" (1/1) ... [2024-11-23 01:25:06,858 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:25:06" (1/1) ... [2024-11-23 01:25:06,874 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-23 01:25:06,876 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-23 01:25:06,876 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-23 01:25:06,876 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-23 01:25:06,877 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:25:06" (1/1) ... [2024-11-23 01:25:06,885 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 01:25:06,895 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-23 01:25:06,912 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) [2024-11-23 01:25:06,915 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 [2024-11-23 01:25:06,957 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2024-11-23 01:25:06,957 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2024-11-23 01:25:06,957 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-23 01:25:06,958 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-23 01:25:06,958 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-23 01:25:06,958 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-23 01:25:06,958 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-11-23 01:25:06,958 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-23 01:25:06,958 INFO L130 BoogieDeclarations]: Found specification of procedure alt_bzero [2024-11-23 01:25:06,960 INFO L138 BoogieDeclarations]: Found implementation of procedure alt_bzero [2024-11-23 01:25:06,960 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-23 01:25:06,960 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-23 01:25:06,960 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-23 01:25:06,960 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-23 01:25:06,961 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-23 01:25:06,961 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-23 01:25:06,961 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-23 01:25:06,961 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-23 01:25:06,961 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-23 01:25:06,961 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-23 01:25:06,962 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-23 01:25:06,962 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-23 01:25:06,962 INFO L130 BoogieDeclarations]: Found specification of procedure alt_malloc [2024-11-23 01:25:06,962 INFO L138 BoogieDeclarations]: Found implementation of procedure alt_malloc [2024-11-23 01:25:06,962 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-23 01:25:06,962 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-23 01:25:06,962 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-23 01:25:06,963 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-11-23 01:25:06,963 INFO L130 BoogieDeclarations]: Found specification of procedure alt_free [2024-11-23 01:25:06,963 INFO L138 BoogieDeclarations]: Found implementation of procedure alt_free [2024-11-23 01:25:06,963 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-23 01:25:06,963 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-23 01:25:06,963 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-23 01:25:06,963 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-23 01:25:06,963 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-23 01:25:06,963 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-23 01:25:07,175 INFO L238 CfgBuilder]: Building ICFG [2024-11-23 01:25:07,178 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-23 01:25:08,502 INFO L? ?]: Removed 376 outVars from TransFormulas that were not future-live. [2024-11-23 01:25:08,502 INFO L287 CfgBuilder]: Performing block encoding [2024-11-23 01:25:08,532 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-23 01:25:08,536 INFO L316 CfgBuilder]: Removed 72 assume(true) statements. [2024-11-23 01:25:08,536 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:25:08 BoogieIcfgContainer [2024-11-23 01:25:08,536 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-23 01:25:08,538 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-23 01:25:08,538 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-23 01:25:08,541 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-23 01:25:08,541 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 01:25:05" (1/3) ... [2024-11-23 01:25:08,541 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1dc1ff35 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 01:25:08, skipping insertion in model container [2024-11-23 01:25:08,542 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:25:06" (2/3) ... [2024-11-23 01:25:08,542 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1dc1ff35 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 01:25:08, skipping insertion in model container [2024-11-23 01:25:08,542 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:25:08" (3/3) ... [2024-11-23 01:25:08,544 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_FNV_test6-2.i [2024-11-23 01:25:08,560 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-23 01:25:08,560 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 14 error locations. [2024-11-23 01:25:08,680 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-23 01:25:08,687 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;@21e8cb94, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-23 01:25:08,688 INFO L334 AbstractCegarLoop]: Starting to check reachability of 14 error locations. [2024-11-23 01:25:08,695 INFO L276 IsEmpty]: Start isEmpty. Operand has 501 states, 462 states have (on average 1.606060606060606) internal successors, (742), 479 states have internal predecessors, (742), 20 states have call successors, (20), 5 states have call predecessors, (20), 5 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-23 01:25:08,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-23 01:25:08,702 INFO L207 NwaCegarLoop]: Found error trace [2024-11-23 01:25:08,703 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 01:25:08,703 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)] === [2024-11-23 01:25:08,709 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 01:25:08,709 INFO L85 PathProgramCache]: Analyzing trace with hash 1635847084, now seen corresponding path program 1 times [2024-11-23 01:25:08,718 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 01:25:08,718 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1419960831] [2024-11-23 01:25:08,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 01:25:08,719 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 01:25:08,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 01:25:08,921 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 01:25:08,922 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 01:25:08,922 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1419960831] [2024-11-23 01:25:08,923 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1419960831] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 01:25:08,923 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 01:25:08,923 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-23 01:25:08,926 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [922300470] [2024-11-23 01:25:08,926 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 01:25:08,931 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-23 01:25:08,931 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 01:25:08,955 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-23 01:25:08,956 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-23 01:25:08,960 INFO L87 Difference]: Start difference. First operand has 501 states, 462 states have (on average 1.606060606060606) internal successors, (742), 479 states have internal predecessors, (742), 20 states have call successors, (20), 5 states have call predecessors, (20), 5 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) Second operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 01:25:09,038 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 01:25:09,039 INFO L93 Difference]: Finished difference Result 995 states and 1569 transitions. [2024-11-23 01:25:09,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-23 01:25:09,041 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 [2024-11-23 01:25:09,041 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 01:25:09,055 INFO L225 Difference]: With dead ends: 995 [2024-11-23 01:25:09,055 INFO L226 Difference]: Without dead ends: 487 [2024-11-23 01:25:09,066 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 [2024-11-23 01:25:09,070 INFO L432 NwaCegarLoop]: 695 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 695 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-23 01:25:09,072 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 695 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 01:25:09,094 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 487 states. [2024-11-23 01:25:09,138 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 487 to 487. [2024-11-23 01:25:09,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 487 states, 454 states have (on average 1.4383259911894273) internal successors, (653), 468 states have internal predecessors, (653), 15 states have call successors, (15), 4 states have call predecessors, (15), 4 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-11-23 01:25:09,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 487 states to 487 states and 683 transitions. [2024-11-23 01:25:09,152 INFO L78 Accepts]: Start accepts. Automaton has 487 states and 683 transitions. Word has length 8 [2024-11-23 01:25:09,152 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 01:25:09,153 INFO L471 AbstractCegarLoop]: Abstraction has 487 states and 683 transitions. [2024-11-23 01:25:09,153 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) [2024-11-23 01:25:09,153 INFO L276 IsEmpty]: Start isEmpty. Operand 487 states and 683 transitions. [2024-11-23 01:25:09,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-23 01:25:09,154 INFO L207 NwaCegarLoop]: Found error trace [2024-11-23 01:25:09,154 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 01:25:09,154 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-23 01:25:09,154 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)] === [2024-11-23 01:25:09,155 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 01:25:09,155 INFO L85 PathProgramCache]: Analyzing trace with hash 1635849006, now seen corresponding path program 1 times [2024-11-23 01:25:09,156 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 01:25:09,156 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1373035604] [2024-11-23 01:25:09,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 01:25:09,157 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 01:25:09,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-23 01:25:09,234 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [160263330] [2024-11-23 01:25:09,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 01:25:09,236 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 01:25:09,236 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-23 01:25:09,239 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) [2024-11-23 01:25:09,241 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-23 01:25:09,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 01:25:09,454 INFO L255 TraceCheckSpWp]: Trace formula consists of 120 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-23 01:25:09,467 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 01:25:09,536 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 [2024-11-23 01:25:09,573 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 [2024-11-23 01:25:09,588 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 01:25:09,588 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 01:25:09,589 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 01:25:09,589 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1373035604] [2024-11-23 01:25:09,590 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-23 01:25:09,590 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [160263330] [2024-11-23 01:25:09,591 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [160263330] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 01:25:09,591 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 01:25:09,593 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 01:25:09,594 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [494187547] [2024-11-23 01:25:09,594 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 01:25:09,595 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-23 01:25:09,595 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 01:25:09,596 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-23 01:25:09,596 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-23 01:25:09,596 INFO L87 Difference]: Start difference. First operand 487 states and 683 transitions. Second operand has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 01:25:09,800 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 01:25:09,801 INFO L93 Difference]: Finished difference Result 940 states and 1333 transitions. [2024-11-23 01:25:09,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-23 01:25:09,806 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 [2024-11-23 01:25:09,806 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 01:25:09,816 INFO L225 Difference]: With dead ends: 940 [2024-11-23 01:25:09,816 INFO L226 Difference]: Without dead ends: 939 [2024-11-23 01:25:09,821 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 [2024-11-23 01:25:09,822 INFO L432 NwaCegarLoop]: 658 mSDtfsCounter, 615 mSDsluCounter, 1302 mSDsCounter, 0 mSdLazyCounter, 87 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 629 SdHoareTripleChecker+Valid, 1960 SdHoareTripleChecker+Invalid, 89 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 87 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-23 01:25:09,823 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [629 Valid, 1960 Invalid, 89 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 87 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-23 01:25:09,825 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 939 states. [2024-11-23 01:25:09,857 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 939 to 493. [2024-11-23 01:25:09,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 493 states, 460 states have (on average 1.434782608695652) internal successors, (660), 474 states have internal predecessors, (660), 15 states have call successors, (15), 4 states have call predecessors, (15), 4 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-11-23 01:25:09,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 493 states to 493 states and 690 transitions. [2024-11-23 01:25:09,865 INFO L78 Accepts]: Start accepts. Automaton has 493 states and 690 transitions. Word has length 8 [2024-11-23 01:25:09,866 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 01:25:09,866 INFO L471 AbstractCegarLoop]: Abstraction has 493 states and 690 transitions. [2024-11-23 01:25:09,866 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) [2024-11-23 01:25:09,867 INFO L276 IsEmpty]: Start isEmpty. Operand 493 states and 690 transitions. [2024-11-23 01:25:09,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-11-23 01:25:09,867 INFO L207 NwaCegarLoop]: Found error trace [2024-11-23 01:25:09,868 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 01:25:09,878 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-23 01:25:10,071 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 [2024-11-23 01:25:10,072 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)] === [2024-11-23 01:25:10,074 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 01:25:10,074 INFO L85 PathProgramCache]: Analyzing trace with hash -828288263, now seen corresponding path program 1 times [2024-11-23 01:25:10,074 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 01:25:10,074 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1331372927] [2024-11-23 01:25:10,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 01:25:10,075 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 01:25:10,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-23 01:25:10,129 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [825178968] [2024-11-23 01:25:10,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 01:25:10,131 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 01:25:10,131 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-23 01:25:10,133 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) [2024-11-23 01:25:10,136 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-23 01:25:10,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 01:25:10,328 INFO L255 TraceCheckSpWp]: Trace formula consists of 121 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-23 01:25:10,331 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 01:25:10,337 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 [2024-11-23 01:25:10,365 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 01:25:10,366 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 01:25:10,366 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 01:25:10,366 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1331372927] [2024-11-23 01:25:10,366 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-23 01:25:10,367 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [825178968] [2024-11-23 01:25:10,367 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [825178968] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 01:25:10,367 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 01:25:10,367 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 01:25:10,367 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2105558282] [2024-11-23 01:25:10,367 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 01:25:10,368 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-23 01:25:10,368 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 01:25:10,368 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-23 01:25:10,369 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-23 01:25:10,369 INFO L87 Difference]: Start difference. First operand 493 states and 690 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) [2024-11-23 01:25:10,540 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 01:25:10,540 INFO L93 Difference]: Finished difference Result 939 states and 1332 transitions. [2024-11-23 01:25:10,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-23 01:25:10,541 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 [2024-11-23 01:25:10,541 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 01:25:10,545 INFO L225 Difference]: With dead ends: 939 [2024-11-23 01:25:10,545 INFO L226 Difference]: Without dead ends: 938 [2024-11-23 01:25:10,546 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 [2024-11-23 01:25:10,547 INFO L432 NwaCegarLoop]: 705 mSDtfsCounter, 613 mSDsluCounter, 1349 mSDsCounter, 0 mSdLazyCounter, 86 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 627 SdHoareTripleChecker+Valid, 2054 SdHoareTripleChecker+Invalid, 88 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 86 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-23 01:25:10,547 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [627 Valid, 2054 Invalid, 88 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 86 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-23 01:25:10,549 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 938 states. [2024-11-23 01:25:10,562 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 938 to 494. [2024-11-23 01:25:10,563 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 494 states, 461 states have (on average 1.4338394793926248) internal successors, (661), 475 states have internal predecessors, (661), 15 states have call successors, (15), 4 states have call predecessors, (15), 4 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-11-23 01:25:10,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 494 states to 494 states and 691 transitions. [2024-11-23 01:25:10,565 INFO L78 Accepts]: Start accepts. Automaton has 494 states and 691 transitions. Word has length 9 [2024-11-23 01:25:10,566 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 01:25:10,566 INFO L471 AbstractCegarLoop]: Abstraction has 494 states and 691 transitions. [2024-11-23 01:25:10,566 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) [2024-11-23 01:25:10,566 INFO L276 IsEmpty]: Start isEmpty. Operand 494 states and 691 transitions. [2024-11-23 01:25:10,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2024-11-23 01:25:10,568 INFO L207 NwaCegarLoop]: Found error trace [2024-11-23 01:25:10,568 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 01:25:10,577 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-23 01:25:10,770 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 [2024-11-23 01:25:10,770 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-23 01:25:10,771 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 01:25:10,771 INFO L85 PathProgramCache]: Analyzing trace with hash -1086501261, now seen corresponding path program 1 times [2024-11-23 01:25:10,771 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 01:25:10,771 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1262492701] [2024-11-23 01:25:10,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 01:25:10,772 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 01:25:10,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 01:25:10,986 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-23 01:25:10,986 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 01:25:10,986 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1262492701] [2024-11-23 01:25:10,987 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1262492701] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 01:25:10,987 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 01:25:10,987 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-23 01:25:10,987 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1289265649] [2024-11-23 01:25:10,987 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 01:25:10,988 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-23 01:25:10,988 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 01:25:10,989 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-23 01:25:10,989 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-23 01:25:10,989 INFO L87 Difference]: Start difference. First operand 494 states and 691 transitions. Second operand has 4 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-23 01:25:11,129 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 01:25:11,129 INFO L93 Difference]: Finished difference Result 1192 states and 1688 transitions. [2024-11-23 01:25:11,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-23 01:25:11,130 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 34 [2024-11-23 01:25:11,130 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 01:25:11,136 INFO L225 Difference]: With dead ends: 1192 [2024-11-23 01:25:11,136 INFO L226 Difference]: Without dead ends: 937 [2024-11-23 01:25:11,137 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 [2024-11-23 01:25:11,139 INFO L432 NwaCegarLoop]: 728 mSDtfsCounter, 616 mSDsluCounter, 1376 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 630 SdHoareTripleChecker+Valid, 2104 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-23 01:25:11,140 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [630 Valid, 2104 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-23 01:25:11,141 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 937 states. [2024-11-23 01:25:11,157 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 937 to 494. [2024-11-23 01:25:11,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 494 states, 461 states have (on average 1.4316702819956617) internal successors, (660), 475 states have internal predecessors, (660), 15 states have call successors, (15), 4 states have call predecessors, (15), 4 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-11-23 01:25:11,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 494 states to 494 states and 690 transitions. [2024-11-23 01:25:11,162 INFO L78 Accepts]: Start accepts. Automaton has 494 states and 690 transitions. Word has length 34 [2024-11-23 01:25:11,162 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 01:25:11,163 INFO L471 AbstractCegarLoop]: Abstraction has 494 states and 690 transitions. [2024-11-23 01:25:11,163 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-23 01:25:11,163 INFO L276 IsEmpty]: Start isEmpty. Operand 494 states and 690 transitions. [2024-11-23 01:25:11,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2024-11-23 01:25:11,167 INFO L207 NwaCegarLoop]: Found error trace [2024-11-23 01:25:11,167 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] [2024-11-23 01:25:11,167 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-23 01:25:11,168 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)] === [2024-11-23 01:25:11,168 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 01:25:11,169 INFO L85 PathProgramCache]: Analyzing trace with hash 185612591, now seen corresponding path program 1 times [2024-11-23 01:25:11,169 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 01:25:11,169 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [188802098] [2024-11-23 01:25:11,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 01:25:11,169 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 01:25:11,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 01:25:11,444 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 01:25:11,444 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 01:25:11,444 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [188802098] [2024-11-23 01:25:11,444 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [188802098] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 01:25:11,444 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 01:25:11,444 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-23 01:25:11,445 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1359900289] [2024-11-23 01:25:11,445 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 01:25:11,445 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-23 01:25:11,445 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 01:25:11,446 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-23 01:25:11,446 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-23 01:25:11,446 INFO L87 Difference]: Start difference. First operand 494 states and 690 transitions. Second operand has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 01:25:11,545 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 01:25:11,545 INFO L93 Difference]: Finished difference Result 937 states and 1305 transitions. [2024-11-23 01:25:11,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-23 01:25:11,546 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 [2024-11-23 01:25:11,546 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 01:25:11,549 INFO L225 Difference]: With dead ends: 937 [2024-11-23 01:25:11,549 INFO L226 Difference]: Without dead ends: 452 [2024-11-23 01:25:11,550 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-23 01:25:11,551 INFO L432 NwaCegarLoop]: 581 mSDtfsCounter, 30 mSDsluCounter, 1143 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 1724 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-23 01:25:11,551 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 1724 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-23 01:25:11,552 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 452 states. [2024-11-23 01:25:11,561 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 452 to 452. [2024-11-23 01:25:11,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 452 states, 419 states have (on average 1.3914081145584725) internal successors, (583), 433 states have internal predecessors, (583), 15 states have call successors, (15), 4 states have call predecessors, (15), 4 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-11-23 01:25:11,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 452 states to 452 states and 613 transitions. [2024-11-23 01:25:11,564 INFO L78 Accepts]: Start accepts. Automaton has 452 states and 613 transitions. Word has length 64 [2024-11-23 01:25:11,565 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 01:25:11,565 INFO L471 AbstractCegarLoop]: Abstraction has 452 states and 613 transitions. [2024-11-23 01:25:11,565 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) [2024-11-23 01:25:11,566 INFO L276 IsEmpty]: Start isEmpty. Operand 452 states and 613 transitions. [2024-11-23 01:25:11,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2024-11-23 01:25:11,567 INFO L207 NwaCegarLoop]: Found error trace [2024-11-23 01:25:11,567 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] [2024-11-23 01:25:11,569 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-23 01:25:11,570 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-23 01:25:11,570 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 01:25:11,570 INFO L85 PathProgramCache]: Analyzing trace with hash -878587357, now seen corresponding path program 1 times [2024-11-23 01:25:11,570 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 01:25:11,571 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1375284331] [2024-11-23 01:25:11,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 01:25:11,571 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 01:25:11,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 01:25:11,822 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 01:25:11,823 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 01:25:11,823 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1375284331] [2024-11-23 01:25:11,824 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1375284331] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 01:25:11,824 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 01:25:11,824 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-23 01:25:11,824 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1841012588] [2024-11-23 01:25:11,824 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 01:25:11,825 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-23 01:25:11,825 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 01:25:11,825 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-23 01:25:11,826 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-23 01:25:11,826 INFO L87 Difference]: Start difference. First operand 452 states and 613 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) [2024-11-23 01:25:11,881 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 01:25:11,882 INFO L93 Difference]: Finished difference Result 825 states and 1128 transitions. [2024-11-23 01:25:11,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-23 01:25:11,884 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 [2024-11-23 01:25:11,884 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 01:25:11,889 INFO L225 Difference]: With dead ends: 825 [2024-11-23 01:25:11,889 INFO L226 Difference]: Without dead ends: 821 [2024-11-23 01:25:11,890 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 [2024-11-23 01:25:11,890 INFO L432 NwaCegarLoop]: 597 mSDtfsCounter, 440 mSDsluCounter, 1183 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 440 SdHoareTripleChecker+Valid, 1780 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-23 01:25:11,891 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [440 Valid, 1780 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 01:25:11,892 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 821 states. [2024-11-23 01:25:11,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 821 to 813. [2024-11-23 01:25:11,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 813 states, 772 states have (on average 1.3989637305699483) internal successors, (1080), 788 states have internal predecessors, (1080), 22 states have call successors, (22), 7 states have call predecessors, (22), 5 states have return successors, (22), 18 states have call predecessors, (22), 22 states have call successors, (22) [2024-11-23 01:25:11,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 813 states to 813 states and 1124 transitions. [2024-11-23 01:25:11,914 INFO L78 Accepts]: Start accepts. Automaton has 813 states and 1124 transitions. Word has length 64 [2024-11-23 01:25:11,916 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 01:25:11,916 INFO L471 AbstractCegarLoop]: Abstraction has 813 states and 1124 transitions. [2024-11-23 01:25:11,916 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) [2024-11-23 01:25:11,917 INFO L276 IsEmpty]: Start isEmpty. Operand 813 states and 1124 transitions. [2024-11-23 01:25:11,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2024-11-23 01:25:11,919 INFO L207 NwaCegarLoop]: Found error trace [2024-11-23 01:25:11,919 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] [2024-11-23 01:25:11,919 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-23 01:25:11,920 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)] === [2024-11-23 01:25:11,920 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 01:25:11,920 INFO L85 PathProgramCache]: Analyzing trace with hash -240672312, now seen corresponding path program 1 times [2024-11-23 01:25:11,920 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 01:25:11,920 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [464618423] [2024-11-23 01:25:11,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 01:25:11,921 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 01:25:11,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 01:25:12,114 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 01:25:12,115 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 01:25:12,115 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [464618423] [2024-11-23 01:25:12,116 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [464618423] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 01:25:12,116 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 01:25:12,116 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-23 01:25:12,116 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1311747213] [2024-11-23 01:25:12,116 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 01:25:12,116 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 01:25:12,117 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 01:25:12,117 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 01:25:12,118 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 01:25:12,118 INFO L87 Difference]: Start difference. First operand 813 states and 1124 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) [2024-11-23 01:25:12,150 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 01:25:12,150 INFO L93 Difference]: Finished difference Result 1087 states and 1500 transitions. [2024-11-23 01:25:12,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 01:25:12,151 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 [2024-11-23 01:25:12,151 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 01:25:12,156 INFO L225 Difference]: With dead ends: 1087 [2024-11-23 01:25:12,157 INFO L226 Difference]: Without dead ends: 1085 [2024-11-23 01:25:12,157 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 [2024-11-23 01:25:12,158 INFO L432 NwaCegarLoop]: 597 mSDtfsCounter, 468 mSDsluCounter, 593 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 468 SdHoareTripleChecker+Valid, 1190 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-23 01:25:12,158 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [468 Valid, 1190 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 01:25:12,160 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1085 states. [2024-11-23 01:25:12,181 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1085 to 1075. [2024-11-23 01:25:12,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1075 states, 1021 states have (on average 1.404505386875612) internal successors, (1434), 1038 states have internal predecessors, (1434), 32 states have call successors, (32), 10 states have call predecessors, (32), 8 states have return successors, (32), 28 states have call predecessors, (32), 32 states have call successors, (32) [2024-11-23 01:25:12,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1075 states to 1075 states and 1498 transitions. [2024-11-23 01:25:12,187 INFO L78 Accepts]: Start accepts. Automaton has 1075 states and 1498 transitions. Word has length 74 [2024-11-23 01:25:12,188 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 01:25:12,188 INFO L471 AbstractCegarLoop]: Abstraction has 1075 states and 1498 transitions. [2024-11-23 01:25:12,188 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) [2024-11-23 01:25:12,190 INFO L276 IsEmpty]: Start isEmpty. Operand 1075 states and 1498 transitions. [2024-11-23 01:25:12,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2024-11-23 01:25:12,191 INFO L207 NwaCegarLoop]: Found error trace [2024-11-23 01:25:12,191 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] [2024-11-23 01:25:12,191 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-23 01:25:12,191 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)] === [2024-11-23 01:25:12,191 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 01:25:12,192 INFO L85 PathProgramCache]: Analyzing trace with hash 980932139, now seen corresponding path program 1 times [2024-11-23 01:25:12,192 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 01:25:12,192 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [955936328] [2024-11-23 01:25:12,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 01:25:12,192 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 01:25:12,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 01:25:12,563 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 01:25:12,563 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 01:25:12,563 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [955936328] [2024-11-23 01:25:12,563 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [955936328] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 01:25:12,563 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1062506138] [2024-11-23 01:25:12,564 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 01:25:12,564 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 01:25:12,564 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-23 01:25:12,569 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) [2024-11-23 01:25:12,571 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-23 01:25:12,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 01:25:12,860 INFO L255 TraceCheckSpWp]: Trace formula consists of 506 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-23 01:25:12,864 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 01:25:12,953 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 01:25:12,954 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 01:25:12,954 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1062506138] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 01:25:12,954 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-23 01:25:12,954 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [7] total 10 [2024-11-23 01:25:12,954 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2002602513] [2024-11-23 01:25:12,955 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 01:25:12,955 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-23 01:25:12,955 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 01:25:12,956 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-23 01:25:12,956 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2024-11-23 01:25:12,956 INFO L87 Difference]: Start difference. First operand 1075 states and 1498 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) [2024-11-23 01:25:13,059 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 01:25:13,059 INFO L93 Difference]: Finished difference Result 1450 states and 2014 transitions. [2024-11-23 01:25:13,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-23 01:25:13,060 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 [2024-11-23 01:25:13,060 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 01:25:13,066 INFO L225 Difference]: With dead ends: 1450 [2024-11-23 01:25:13,067 INFO L226 Difference]: Without dead ends: 1449 [2024-11-23 01:25:13,068 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 [2024-11-23 01:25:13,069 INFO L432 NwaCegarLoop]: 590 mSDtfsCounter, 560 mSDsluCounter, 1695 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 560 SdHoareTripleChecker+Valid, 2285 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-23 01:25:13,069 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [560 Valid, 2285 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 01:25:13,072 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1449 states. [2024-11-23 01:25:13,115 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1449 to 1399. [2024-11-23 01:25:13,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1399 states, 1338 states have (on average 1.407324364723468) internal successors, (1883), 1357 states have internal predecessors, (1883), 37 states have call successors, (37), 13 states have call predecessors, (37), 10 states have return successors, (37), 30 states have call predecessors, (37), 37 states have call successors, (37) [2024-11-23 01:25:13,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1399 states to 1399 states and 1957 transitions. [2024-11-23 01:25:13,125 INFO L78 Accepts]: Start accepts. Automaton has 1399 states and 1957 transitions. Word has length 83 [2024-11-23 01:25:13,125 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 01:25:13,125 INFO L471 AbstractCegarLoop]: Abstraction has 1399 states and 1957 transitions. [2024-11-23 01:25:13,125 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) [2024-11-23 01:25:13,126 INFO L276 IsEmpty]: Start isEmpty. Operand 1399 states and 1957 transitions. [2024-11-23 01:25:13,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-11-23 01:25:13,128 INFO L207 NwaCegarLoop]: Found error trace [2024-11-23 01:25:13,128 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] [2024-11-23 01:25:13,137 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-23 01:25:13,328 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 [2024-11-23 01:25:13,329 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)] === [2024-11-23 01:25:13,329 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 01:25:13,329 INFO L85 PathProgramCache]: Analyzing trace with hash 344125278, now seen corresponding path program 1 times [2024-11-23 01:25:13,329 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 01:25:13,329 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [570751897] [2024-11-23 01:25:13,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 01:25:13,330 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 01:25:13,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 01:25:13,644 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 01:25:13,645 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 01:25:13,645 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [570751897] [2024-11-23 01:25:13,645 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [570751897] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 01:25:13,645 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1157432026] [2024-11-23 01:25:13,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 01:25:13,645 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 01:25:13,645 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-23 01:25:13,648 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) [2024-11-23 01:25:13,649 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-23 01:25:13,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 01:25:13,910 INFO L255 TraceCheckSpWp]: Trace formula consists of 507 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-23 01:25:13,914 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 01:25:14,109 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 01:25:14,110 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 01:25:14,355 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 01:25:14,356 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1157432026] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-23 01:25:14,356 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-23 01:25:14,356 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6, 7] total 17 [2024-11-23 01:25:14,356 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [784626922] [2024-11-23 01:25:14,357 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-23 01:25:14,357 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-23 01:25:14,357 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 01:25:14,358 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-23 01:25:14,358 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=235, Unknown=0, NotChecked=0, Total=306 [2024-11-23 01:25:14,359 INFO L87 Difference]: Start difference. First operand 1399 states and 1957 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) [2024-11-23 01:25:15,380 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 01:25:15,381 INFO L93 Difference]: Finished difference Result 3780 states and 5271 transitions. [2024-11-23 01:25:15,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2024-11-23 01:25:15,381 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 [2024-11-23 01:25:15,382 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 01:25:15,397 INFO L225 Difference]: With dead ends: 3780 [2024-11-23 01:25:15,398 INFO L226 Difference]: Without dead ends: 3778 [2024-11-23 01:25:15,401 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 [2024-11-23 01:25:15,402 INFO L432 NwaCegarLoop]: 655 mSDtfsCounter, 3691 mSDsluCounter, 6792 mSDsCounter, 0 mSdLazyCounter, 509 mSolverCounterSat, 169 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3716 SdHoareTripleChecker+Valid, 7447 SdHoareTripleChecker+Invalid, 678 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 169 IncrementalHoareTripleChecker+Valid, 509 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-23 01:25:15,402 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3716 Valid, 7447 Invalid, 678 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [169 Valid, 509 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-23 01:25:15,406 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3778 states. [2024-11-23 01:25:15,533 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3778 to 2801. [2024-11-23 01:25:15,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2801 states, 2681 states have (on average 1.3890339425587468) internal successors, (3724), 2702 states have internal predecessors, (3724), 83 states have call successors, (83), 28 states have call predecessors, (83), 23 states have return successors, (106), 70 states have call predecessors, (106), 83 states have call successors, (106) [2024-11-23 01:25:15,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2801 states to 2801 states and 3913 transitions. [2024-11-23 01:25:15,549 INFO L78 Accepts]: Start accepts. Automaton has 2801 states and 3913 transitions. Word has length 84 [2024-11-23 01:25:15,550 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 01:25:15,550 INFO L471 AbstractCegarLoop]: Abstraction has 2801 states and 3913 transitions. [2024-11-23 01:25:15,550 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) [2024-11-23 01:25:15,550 INFO L276 IsEmpty]: Start isEmpty. Operand 2801 states and 3913 transitions. [2024-11-23 01:25:15,551 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2024-11-23 01:25:15,551 INFO L207 NwaCegarLoop]: Found error trace [2024-11-23 01:25:15,551 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] [2024-11-23 01:25:15,562 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-23 01:25:15,752 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 [2024-11-23 01:25:15,752 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)] === [2024-11-23 01:25:15,753 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 01:25:15,753 INFO L85 PathProgramCache]: Analyzing trace with hash -1558756002, now seen corresponding path program 1 times [2024-11-23 01:25:15,753 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 01:25:15,753 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1954468475] [2024-11-23 01:25:15,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 01:25:15,753 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 01:25:15,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 01:25:15,875 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 01:25:15,876 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 01:25:15,876 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1954468475] [2024-11-23 01:25:15,876 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1954468475] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 01:25:15,876 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 01:25:15,876 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 01:25:15,876 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [757684836] [2024-11-23 01:25:15,877 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 01:25:15,877 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 01:25:15,877 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 01:25:15,878 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 01:25:15,878 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 01:25:15,878 INFO L87 Difference]: Start difference. First operand 2801 states and 3913 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) [2024-11-23 01:25:16,054 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 01:25:16,054 INFO L93 Difference]: Finished difference Result 5860 states and 8228 transitions. [2024-11-23 01:25:16,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 01:25:16,055 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 [2024-11-23 01:25:16,055 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 01:25:16,066 INFO L225 Difference]: With dead ends: 5860 [2024-11-23 01:25:16,066 INFO L226 Difference]: Without dead ends: 3068 [2024-11-23 01:25:16,071 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 [2024-11-23 01:25:16,072 INFO L432 NwaCegarLoop]: 829 mSDtfsCounter, 344 mSDsluCounter, 564 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 349 SdHoareTripleChecker+Valid, 1393 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-23 01:25:16,073 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [349 Valid, 1393 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-23 01:25:16,076 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3068 states. [2024-11-23 01:25:16,140 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3068 to 2954. [2024-11-23 01:25:16,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2954 states, 2840 states have (on average 1.4024647887323944) internal successors, (3983), 2860 states have internal predecessors, (3983), 80 states have call successors, (80), 24 states have call predecessors, (80), 20 states have return successors, (102), 69 states have call predecessors, (102), 80 states have call successors, (102) [2024-11-23 01:25:16,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2954 states to 2954 states and 4165 transitions. [2024-11-23 01:25:16,155 INFO L78 Accepts]: Start accepts. Automaton has 2954 states and 4165 transitions. Word has length 82 [2024-11-23 01:25:16,155 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 01:25:16,155 INFO L471 AbstractCegarLoop]: Abstraction has 2954 states and 4165 transitions. [2024-11-23 01:25:16,156 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) [2024-11-23 01:25:16,156 INFO L276 IsEmpty]: Start isEmpty. Operand 2954 states and 4165 transitions. [2024-11-23 01:25:16,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2024-11-23 01:25:16,157 INFO L207 NwaCegarLoop]: Found error trace [2024-11-23 01:25:16,157 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] [2024-11-23 01:25:16,157 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-23 01:25:16,157 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)] === [2024-11-23 01:25:16,157 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 01:25:16,158 INFO L85 PathProgramCache]: Analyzing trace with hash -1908045712, now seen corresponding path program 1 times [2024-11-23 01:25:16,158 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 01:25:16,158 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1362176175] [2024-11-23 01:25:16,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 01:25:16,158 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 01:25:16,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 01:25:16,504 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-11-23 01:25:16,504 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 01:25:16,504 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1362176175] [2024-11-23 01:25:16,505 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1362176175] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 01:25:16,505 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1428255212] [2024-11-23 01:25:16,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 01:25:16,505 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 01:25:16,505 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-23 01:25:16,507 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) [2024-11-23 01:25:16,509 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-23 01:25:16,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 01:25:16,808 INFO L255 TraceCheckSpWp]: Trace formula consists of 601 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-23 01:25:16,812 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 01:25:16,947 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 7 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 01:25:16,948 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 01:25:17,152 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-11-23 01:25:17,153 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1428255212] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-23 01:25:17,153 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-23 01:25:17,153 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5, 4] total 12 [2024-11-23 01:25:17,153 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1062797763] [2024-11-23 01:25:17,153 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 01:25:17,154 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-23 01:25:17,154 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 01:25:17,154 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-23 01:25:17,154 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=106, Unknown=0, NotChecked=0, Total=156 [2024-11-23 01:25:17,154 INFO L87 Difference]: Start difference. First operand 2954 states and 4165 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) [2024-11-23 01:25:17,306 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 01:25:17,307 INFO L93 Difference]: Finished difference Result 2954 states and 4165 transitions. [2024-11-23 01:25:17,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 01:25:17,308 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 [2024-11-23 01:25:17,308 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 01:25:17,320 INFO L225 Difference]: With dead ends: 2954 [2024-11-23 01:25:17,320 INFO L226 Difference]: Without dead ends: 2953 [2024-11-23 01:25:17,322 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 [2024-11-23 01:25:17,322 INFO L432 NwaCegarLoop]: 595 mSDtfsCounter, 1150 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1150 SdHoareTripleChecker+Valid, 595 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-23 01:25:17,323 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1150 Valid, 595 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-23 01:25:17,326 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2953 states. [2024-11-23 01:25:17,426 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2953 to 2953. [2024-11-23 01:25:17,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2953 states, 2840 states have (on average 1.4007042253521127) internal successors, (3978), 2859 states have internal predecessors, (3978), 80 states have call successors, (80), 24 states have call predecessors, (80), 20 states have return successors, (102), 69 states have call predecessors, (102), 80 states have call successors, (102) [2024-11-23 01:25:17,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2953 states to 2953 states and 4160 transitions. [2024-11-23 01:25:17,443 INFO L78 Accepts]: Start accepts. Automaton has 2953 states and 4160 transitions. Word has length 93 [2024-11-23 01:25:17,444 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 01:25:17,444 INFO L471 AbstractCegarLoop]: Abstraction has 2953 states and 4160 transitions. [2024-11-23 01:25:17,444 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) [2024-11-23 01:25:17,444 INFO L276 IsEmpty]: Start isEmpty. Operand 2953 states and 4160 transitions. [2024-11-23 01:25:17,445 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-11-23 01:25:17,445 INFO L207 NwaCegarLoop]: Found error trace [2024-11-23 01:25:17,445 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] [2024-11-23 01:25:17,455 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-23 01:25:17,646 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 [2024-11-23 01:25:17,647 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)] === [2024-11-23 01:25:17,648 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 01:25:17,648 INFO L85 PathProgramCache]: Analyzing trace with hash 980125141, now seen corresponding path program 1 times [2024-11-23 01:25:17,648 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 01:25:17,648 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [867529269] [2024-11-23 01:25:17,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 01:25:17,649 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 01:25:17,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 01:25:17,920 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-11-23 01:25:17,920 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 01:25:17,920 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [867529269] [2024-11-23 01:25:17,920 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [867529269] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 01:25:17,920 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [476119306] [2024-11-23 01:25:17,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 01:25:17,921 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 01:25:17,921 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-23 01:25:17,923 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) [2024-11-23 01:25:17,925 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-23 01:25:18,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 01:25:18,236 INFO L255 TraceCheckSpWp]: Trace formula consists of 602 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-23 01:25:18,239 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 01:25:18,360 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 01:25:18,360 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 01:25:18,575 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-11-23 01:25:18,575 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [476119306] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-23 01:25:18,575 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-23 01:25:18,575 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4, 5] total 12 [2024-11-23 01:25:18,575 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1568353644] [2024-11-23 01:25:18,575 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-23 01:25:18,576 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-23 01:25:18,576 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 01:25:18,576 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-23 01:25:18,577 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=100, Unknown=0, NotChecked=0, Total=156 [2024-11-23 01:25:18,577 INFO L87 Difference]: Start difference. First operand 2953 states and 4160 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) [2024-11-23 01:25:19,210 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 01:25:19,211 INFO L93 Difference]: Finished difference Result 5921 states and 8344 transitions. [2024-11-23 01:25:19,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-23 01:25:19,211 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 [2024-11-23 01:25:19,212 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 01:25:19,235 INFO L225 Difference]: With dead ends: 5921 [2024-11-23 01:25:19,235 INFO L226 Difference]: Without dead ends: 5920 [2024-11-23 01:25:19,239 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 [2024-11-23 01:25:19,240 INFO L432 NwaCegarLoop]: 563 mSDtfsCounter, 1785 mSDsluCounter, 3437 mSDsCounter, 0 mSdLazyCounter, 338 mSolverCounterSat, 113 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1803 SdHoareTripleChecker+Valid, 4000 SdHoareTripleChecker+Invalid, 451 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 113 IncrementalHoareTripleChecker+Valid, 338 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-23 01:25:19,240 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1803 Valid, 4000 Invalid, 451 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [113 Valid, 338 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-23 01:25:19,246 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5920 states. [2024-11-23 01:25:19,388 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5920 to 5482. [2024-11-23 01:25:19,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5482 states, 5260 states have (on average 1.4005703422053233) internal successors, (7367), 5284 states have internal predecessors, (7367), 159 states have call successors, (159), 56 states have call predecessors, (159), 50 states have return successors, (197), 141 states have call predecessors, (197), 159 states have call successors, (197) [2024-11-23 01:25:19,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5482 states to 5482 states and 7723 transitions. [2024-11-23 01:25:19,414 INFO L78 Accepts]: Start accepts. Automaton has 5482 states and 7723 transitions. Word has length 94 [2024-11-23 01:25:19,415 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 01:25:19,415 INFO L471 AbstractCegarLoop]: Abstraction has 5482 states and 7723 transitions. [2024-11-23 01:25:19,415 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) [2024-11-23 01:25:19,415 INFO L276 IsEmpty]: Start isEmpty. Operand 5482 states and 7723 transitions. [2024-11-23 01:25:19,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2024-11-23 01:25:19,416 INFO L207 NwaCegarLoop]: Found error trace [2024-11-23 01:25:19,417 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] [2024-11-23 01:25:19,467 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-23 01:25:19,617 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 [2024-11-23 01:25:19,618 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)] === [2024-11-23 01:25:19,619 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 01:25:19,619 INFO L85 PathProgramCache]: Analyzing trace with hash 2083756214, now seen corresponding path program 1 times [2024-11-23 01:25:19,619 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 01:25:19,619 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [991966810] [2024-11-23 01:25:19,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 01:25:19,619 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 01:25:19,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 01:25:19,954 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-23 01:25:19,954 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 01:25:19,954 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [991966810] [2024-11-23 01:25:19,954 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [991966810] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 01:25:19,954 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 01:25:19,955 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 01:25:19,955 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [60104960] [2024-11-23 01:25:19,955 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 01:25:19,955 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-23 01:25:19,956 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 01:25:19,956 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-23 01:25:19,956 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-23 01:25:19,957 INFO L87 Difference]: Start difference. First operand 5482 states and 7723 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) [2024-11-23 01:25:20,249 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 01:25:20,249 INFO L93 Difference]: Finished difference Result 7738 states and 10970 transitions. [2024-11-23 01:25:20,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-23 01:25:20,250 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 [2024-11-23 01:25:20,250 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 01:25:20,286 INFO L225 Difference]: With dead ends: 7738 [2024-11-23 01:25:20,290 INFO L226 Difference]: Without dead ends: 7736 [2024-11-23 01:25:20,293 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 [2024-11-23 01:25:20,293 INFO L432 NwaCegarLoop]: 577 mSDtfsCounter, 445 mSDsluCounter, 1136 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 455 SdHoareTripleChecker+Valid, 1713 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 [2024-11-23 01:25:20,294 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [455 Valid, 1713 Invalid, 84 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-23 01:25:20,301 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7736 states. [2024-11-23 01:25:20,464 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7736 to 5650. [2024-11-23 01:25:20,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5650 states, 5419 states have (on average 1.3960140247278097) internal successors, (7565), 5444 states have internal predecessors, (7565), 168 states have call successors, (168), 56 states have call predecessors, (168), 50 states have return successors, (209), 149 states have call predecessors, (209), 168 states have call successors, (209) [2024-11-23 01:25:20,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5650 states to 5650 states and 7942 transitions. [2024-11-23 01:25:20,487 INFO L78 Accepts]: Start accepts. Automaton has 5650 states and 7942 transitions. Word has length 120 [2024-11-23 01:25:20,488 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 01:25:20,488 INFO L471 AbstractCegarLoop]: Abstraction has 5650 states and 7942 transitions. [2024-11-23 01:25:20,488 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) [2024-11-23 01:25:20,488 INFO L276 IsEmpty]: Start isEmpty. Operand 5650 states and 7942 transitions. [2024-11-23 01:25:20,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2024-11-23 01:25:20,490 INFO L207 NwaCegarLoop]: Found error trace [2024-11-23 01:25:20,490 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] [2024-11-23 01:25:20,490 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-23 01:25:20,490 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)] === [2024-11-23 01:25:20,491 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 01:25:20,491 INFO L85 PathProgramCache]: Analyzing trace with hash -1429916002, now seen corresponding path program 1 times [2024-11-23 01:25:20,491 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 01:25:20,491 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [482179837] [2024-11-23 01:25:20,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 01:25:20,492 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 01:25:20,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 01:25:20,899 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 6 proven. 7 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-11-23 01:25:20,899 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 01:25:20,899 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [482179837] [2024-11-23 01:25:20,899 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [482179837] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 01:25:20,900 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [954084233] [2024-11-23 01:25:20,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 01:25:20,900 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 01:25:20,900 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-23 01:25:20,903 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) [2024-11-23 01:25:20,906 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-23 01:25:21,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 01:25:21,317 INFO L255 TraceCheckSpWp]: Trace formula consists of 795 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-23 01:25:21,323 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 01:25:21,445 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-11-23 01:25:21,446 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 01:25:21,446 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [954084233] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 01:25:21,446 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-23 01:25:21,446 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [7] total 10 [2024-11-23 01:25:21,447 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1606878617] [2024-11-23 01:25:21,447 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 01:25:21,447 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-23 01:25:21,447 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 01:25:21,448 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-23 01:25:21,448 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2024-11-23 01:25:21,448 INFO L87 Difference]: Start difference. First operand 5650 states and 7942 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) [2024-11-23 01:25:21,799 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 01:25:21,799 INFO L93 Difference]: Finished difference Result 10772 states and 15198 transitions. [2024-11-23 01:25:21,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-23 01:25:21,800 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 [2024-11-23 01:25:21,800 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 01:25:21,813 INFO L225 Difference]: With dead ends: 10772 [2024-11-23 01:25:21,814 INFO L226 Difference]: Without dead ends: 5442 [2024-11-23 01:25:21,822 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 [2024-11-23 01:25:21,823 INFO L432 NwaCegarLoop]: 575 mSDtfsCounter, 85 mSDsluCounter, 2768 mSDsCounter, 0 mSdLazyCounter, 212 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 86 SdHoareTripleChecker+Valid, 3343 SdHoareTripleChecker+Invalid, 227 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 212 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-23 01:25:21,823 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [86 Valid, 3343 Invalid, 227 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 212 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-23 01:25:21,828 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5442 states. [2024-11-23 01:25:21,955 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5442 to 5442. [2024-11-23 01:25:21,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5442 states, 5228 states have (on average 1.400344299923489) internal successors, (7321), 5251 states have internal predecessors, (7321), 157 states have call successors, (157), 50 states have call predecessors, (157), 44 states have return successors, (192), 140 states have call predecessors, (192), 157 states have call successors, (192) [2024-11-23 01:25:21,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5442 states to 5442 states and 7670 transitions. [2024-11-23 01:25:21,982 INFO L78 Accepts]: Start accepts. Automaton has 5442 states and 7670 transitions. Word has length 127 [2024-11-23 01:25:21,983 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 01:25:21,983 INFO L471 AbstractCegarLoop]: Abstraction has 5442 states and 7670 transitions. [2024-11-23 01:25:21,984 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) [2024-11-23 01:25:21,984 INFO L276 IsEmpty]: Start isEmpty. Operand 5442 states and 7670 transitions. [2024-11-23 01:25:21,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2024-11-23 01:25:21,985 INFO L207 NwaCegarLoop]: Found error trace [2024-11-23 01:25:21,985 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] [2024-11-23 01:25:21,995 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2024-11-23 01:25:22,189 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 [2024-11-23 01:25:22,190 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)] === [2024-11-23 01:25:22,190 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 01:25:22,191 INFO L85 PathProgramCache]: Analyzing trace with hash 2038802715, now seen corresponding path program 1 times [2024-11-23 01:25:22,191 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 01:25:22,191 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1671284439] [2024-11-23 01:25:22,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 01:25:22,191 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 01:25:22,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 01:25:22,655 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-23 01:25:22,655 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 01:25:22,655 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1671284439] [2024-11-23 01:25:22,656 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1671284439] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 01:25:22,656 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1785656646] [2024-11-23 01:25:22,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 01:25:22,656 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 01:25:22,656 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-23 01:25:22,659 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) [2024-11-23 01:25:22,660 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-23 01:25:23,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 01:25:23,070 INFO L255 TraceCheckSpWp]: Trace formula consists of 805 conjuncts, 28 conjuncts are in the unsatisfiable core [2024-11-23 01:25:23,074 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 01:25:23,288 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-23 01:25:23,288 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 01:25:23,288 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1785656646] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 01:25:23,288 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-23 01:25:23,289 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [5] total 10 [2024-11-23 01:25:23,289 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1529252330] [2024-11-23 01:25:23,289 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 01:25:23,289 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-23 01:25:23,289 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 01:25:23,290 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-23 01:25:23,290 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-11-23 01:25:23,291 INFO L87 Difference]: Start difference. First operand 5442 states and 7670 transitions. Second operand has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 7 states have internal predecessors, (111), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-23 01:25:24,126 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 01:25:24,127 INFO L93 Difference]: Finished difference Result 10902 states and 15390 transitions. [2024-11-23 01:25:24,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-23 01:25:24,128 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 7 states have internal predecessors, (111), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 132 [2024-11-23 01:25:24,128 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 01:25:24,139 INFO L225 Difference]: With dead ends: 10902 [2024-11-23 01:25:24,139 INFO L226 Difference]: Without dead ends: 5507 [2024-11-23 01:25:24,146 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 136 GetRequests, 128 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-11-23 01:25:24,147 INFO L432 NwaCegarLoop]: 578 mSDtfsCounter, 15 mSDsluCounter, 2544 mSDsCounter, 0 mSdLazyCounter, 425 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 3122 SdHoareTripleChecker+Invalid, 428 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 425 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-23 01:25:24,147 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 3122 Invalid, 428 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 425 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-23 01:25:24,151 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5507 states. [2024-11-23 01:25:24,284 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5507 to 5494. [2024-11-23 01:25:24,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5494 states, 5280 states have (on average 1.393939393939394) internal successors, (7360), 5303 states have internal predecessors, (7360), 157 states have call successors, (157), 50 states have call predecessors, (157), 44 states have return successors, (192), 140 states have call predecessors, (192), 157 states have call successors, (192) [2024-11-23 01:25:24,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5494 states to 5494 states and 7709 transitions. [2024-11-23 01:25:24,306 INFO L78 Accepts]: Start accepts. Automaton has 5494 states and 7709 transitions. Word has length 132 [2024-11-23 01:25:24,306 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 01:25:24,306 INFO L471 AbstractCegarLoop]: Abstraction has 5494 states and 7709 transitions. [2024-11-23 01:25:24,307 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 7 states have internal predecessors, (111), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-23 01:25:24,307 INFO L276 IsEmpty]: Start isEmpty. Operand 5494 states and 7709 transitions. [2024-11-23 01:25:24,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2024-11-23 01:25:24,308 INFO L207 NwaCegarLoop]: Found error trace [2024-11-23 01:25:24,308 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] [2024-11-23 01:25:24,320 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2024-11-23 01:25:24,512 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 [2024-11-23 01:25:24,513 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)] === [2024-11-23 01:25:24,513 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 01:25:24,513 INFO L85 PathProgramCache]: Analyzing trace with hash 1820581846, now seen corresponding path program 1 times [2024-11-23 01:25:24,514 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 01:25:24,514 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1989428774] [2024-11-23 01:25:24,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 01:25:24,514 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 01:25:24,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 01:25:24,859 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-23 01:25:24,860 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 01:25:24,860 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1989428774] [2024-11-23 01:25:24,860 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1989428774] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 01:25:24,860 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 01:25:24,860 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-23 01:25:24,861 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [512916376] [2024-11-23 01:25:24,862 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 01:25:24,862 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-23 01:25:24,862 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 01:25:24,863 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-23 01:25:24,863 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-23 01:25:24,863 INFO L87 Difference]: Start difference. First operand 5494 states and 7709 transitions. Second operand has 7 states, 7 states have (on average 16.0) internal successors, (112), 7 states have internal predecessors, (112), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-23 01:25:25,339 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 01:25:25,339 INFO L93 Difference]: Finished difference Result 10992 states and 15449 transitions. [2024-11-23 01:25:25,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-23 01:25:25,340 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.0) internal successors, (112), 7 states have internal predecessors, (112), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 133 [2024-11-23 01:25:25,340 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 01:25:25,354 INFO L225 Difference]: With dead ends: 10992 [2024-11-23 01:25:25,355 INFO L226 Difference]: Without dead ends: 5559 [2024-11-23 01:25:25,363 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-23 01:25:25,364 INFO L432 NwaCegarLoop]: 583 mSDtfsCounter, 14 mSDsluCounter, 2571 mSDsCounter, 0 mSdLazyCounter, 419 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 3154 SdHoareTripleChecker+Invalid, 420 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 419 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-23 01:25:25,364 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 3154 Invalid, 420 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 419 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-23 01:25:25,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5559 states. [2024-11-23 01:25:25,506 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5559 to 5533. [2024-11-23 01:25:25,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5533 states, 5319 states have (on average 1.3934950178605001) internal successors, (7412), 5342 states have internal predecessors, (7412), 157 states have call successors, (157), 50 states have call predecessors, (157), 44 states have return successors, (192), 140 states have call predecessors, (192), 157 states have call successors, (192) [2024-11-23 01:25:25,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5533 states to 5533 states and 7761 transitions. [2024-11-23 01:25:25,527 INFO L78 Accepts]: Start accepts. Automaton has 5533 states and 7761 transitions. Word has length 133 [2024-11-23 01:25:25,527 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 01:25:25,527 INFO L471 AbstractCegarLoop]: Abstraction has 5533 states and 7761 transitions. [2024-11-23 01:25:25,528 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.0) internal successors, (112), 7 states have internal predecessors, (112), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-23 01:25:25,528 INFO L276 IsEmpty]: Start isEmpty. Operand 5533 states and 7761 transitions. [2024-11-23 01:25:25,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2024-11-23 01:25:25,529 INFO L207 NwaCegarLoop]: Found error trace [2024-11-23 01:25:25,529 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 01:25:25,529 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-23 01:25:25,530 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)] === [2024-11-23 01:25:25,530 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 01:25:25,530 INFO L85 PathProgramCache]: Analyzing trace with hash 219360999, now seen corresponding path program 1 times [2024-11-23 01:25:25,530 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 01:25:25,531 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1669954091] [2024-11-23 01:25:25,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 01:25:25,531 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 01:25:25,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 01:25:26,105 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-23 01:25:26,106 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 01:25:26,106 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1669954091] [2024-11-23 01:25:26,107 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1669954091] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 01:25:26,107 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 01:25:26,107 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-23 01:25:26,107 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1384935336] [2024-11-23 01:25:26,107 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 01:25:26,108 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-23 01:25:26,108 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 01:25:26,108 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-23 01:25:26,109 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-23 01:25:26,110 INFO L87 Difference]: Start difference. First operand 5533 states and 7761 transitions. Second operand has 9 states, 9 states have (on average 12.555555555555555) internal successors, (113), 9 states have internal predecessors, (113), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-23 01:25:26,777 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 01:25:26,777 INFO L93 Difference]: Finished difference Result 11254 states and 15815 transitions. [2024-11-23 01:25:26,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-23 01:25:26,778 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.555555555555555) internal successors, (113), 9 states have internal predecessors, (113), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 134 [2024-11-23 01:25:26,778 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 01:25:26,794 INFO L225 Difference]: With dead ends: 11254 [2024-11-23 01:25:26,795 INFO L226 Difference]: Without dead ends: 5780 [2024-11-23 01:25:26,806 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2024-11-23 01:25:26,807 INFO L432 NwaCegarLoop]: 578 mSDtfsCounter, 36 mSDsluCounter, 3664 mSDsCounter, 0 mSdLazyCounter, 539 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 4242 SdHoareTripleChecker+Invalid, 542 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 539 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-23 01:25:26,807 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 4242 Invalid, 542 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 539 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-23 01:25:26,815 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5780 states. [2024-11-23 01:25:27,000 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5780 to 5689. [2024-11-23 01:25:27,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5689 states, 5475 states have (on average 1.3941552511415525) internal successors, (7633), 5498 states have internal predecessors, (7633), 157 states have call successors, (157), 50 states have call predecessors, (157), 44 states have return successors, (192), 140 states have call predecessors, (192), 157 states have call successors, (192) [2024-11-23 01:25:27,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5689 states to 5689 states and 7982 transitions. [2024-11-23 01:25:27,021 INFO L78 Accepts]: Start accepts. Automaton has 5689 states and 7982 transitions. Word has length 134 [2024-11-23 01:25:27,021 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 01:25:27,021 INFO L471 AbstractCegarLoop]: Abstraction has 5689 states and 7982 transitions. [2024-11-23 01:25:27,021 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.555555555555555) internal successors, (113), 9 states have internal predecessors, (113), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-23 01:25:27,022 INFO L276 IsEmpty]: Start isEmpty. Operand 5689 states and 7982 transitions. [2024-11-23 01:25:27,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2024-11-23 01:25:27,023 INFO L207 NwaCegarLoop]: Found error trace [2024-11-23 01:25:27,024 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 01:25:27,024 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-23 01:25:27,024 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)] === [2024-11-23 01:25:27,024 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 01:25:27,025 INFO L85 PathProgramCache]: Analyzing trace with hash 1436897024, now seen corresponding path program 1 times [2024-11-23 01:25:27,025 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 01:25:27,025 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1545470378] [2024-11-23 01:25:27,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 01:25:27,025 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 01:25:27,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 01:25:27,465 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-23 01:25:27,465 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 01:25:27,465 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1545470378] [2024-11-23 01:25:27,465 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1545470378] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 01:25:27,466 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1317554217] [2024-11-23 01:25:27,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 01:25:27,466 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 01:25:27,466 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-23 01:25:27,469 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) [2024-11-23 01:25:27,471 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-23 01:25:27,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 01:25:27,968 INFO L255 TraceCheckSpWp]: Trace formula consists of 807 conjuncts, 33 conjuncts are in the unsatisfiable core [2024-11-23 01:25:27,972 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 01:25:27,976 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-11-23 01:25:27,996 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 [2024-11-23 01:25:28,013 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 [2024-11-23 01:25:28,628 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-23 01:25:28,628 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 01:25:28,628 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1317554217] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 01:25:28,628 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-23 01:25:28,628 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [5] total 14 [2024-11-23 01:25:28,629 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [593301272] [2024-11-23 01:25:28,629 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 01:25:28,629 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-23 01:25:28,629 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 01:25:28,630 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-23 01:25:28,630 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2024-11-23 01:25:28,630 INFO L87 Difference]: Start difference. First operand 5689 states and 7982 transitions. Second operand has 11 states, 11 states have (on average 10.272727272727273) internal successors, (113), 11 states have internal predecessors, (113), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-23 01:25:30,492 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 01:25:30,493 INFO L93 Difference]: Finished difference Result 13408 states and 18909 transitions. [2024-11-23 01:25:30,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-23 01:25:30,493 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 10.272727272727273) internal successors, (113), 11 states have internal predecessors, (113), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 134 [2024-11-23 01:25:30,494 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 01:25:30,514 INFO L225 Difference]: With dead ends: 13408 [2024-11-23 01:25:30,514 INFO L226 Difference]: Without dead ends: 7777 [2024-11-23 01:25:30,527 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 146 GetRequests, 126 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=101, Invalid=361, Unknown=0, NotChecked=0, Total=462 [2024-11-23 01:25:30,527 INFO L432 NwaCegarLoop]: 577 mSDtfsCounter, 653 mSDsluCounter, 3392 mSDsCounter, 0 mSdLazyCounter, 896 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 665 SdHoareTripleChecker+Valid, 3969 SdHoareTripleChecker+Invalid, 903 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 896 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-23 01:25:30,528 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [665 Valid, 3969 Invalid, 903 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 896 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-23 01:25:30,534 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7777 states. [2024-11-23 01:25:30,732 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7777 to 5677. [2024-11-23 01:25:30,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5677 states, 5463 states have (on average 1.393922753066081) internal successors, (7615), 5486 states have internal predecessors, (7615), 157 states have call successors, (157), 50 states have call predecessors, (157), 44 states have return successors, (192), 140 states have call predecessors, (192), 157 states have call successors, (192) [2024-11-23 01:25:30,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5677 states to 5677 states and 7964 transitions. [2024-11-23 01:25:30,752 INFO L78 Accepts]: Start accepts. Automaton has 5677 states and 7964 transitions. Word has length 134 [2024-11-23 01:25:30,752 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 01:25:30,752 INFO L471 AbstractCegarLoop]: Abstraction has 5677 states and 7964 transitions. [2024-11-23 01:25:30,752 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 10.272727272727273) internal successors, (113), 11 states have internal predecessors, (113), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-23 01:25:30,752 INFO L276 IsEmpty]: Start isEmpty. Operand 5677 states and 7964 transitions. [2024-11-23 01:25:30,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2024-11-23 01:25:30,754 INFO L207 NwaCegarLoop]: Found error trace [2024-11-23 01:25:30,754 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 01:25:30,766 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2024-11-23 01:25:30,958 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,SelfDestructingSolverStorable17 [2024-11-23 01:25:30,959 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-23 01:25:30,959 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 01:25:30,959 INFO L85 PathProgramCache]: Analyzing trace with hash 786605260, now seen corresponding path program 1 times [2024-11-23 01:25:30,959 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 01:25:30,959 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [803126801] [2024-11-23 01:25:30,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 01:25:30,960 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 01:25:31,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 01:25:31,375 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-23 01:25:31,375 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 01:25:31,375 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [803126801] [2024-11-23 01:25:31,375 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [803126801] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 01:25:31,377 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 01:25:31,377 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-23 01:25:31,377 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [870644888] [2024-11-23 01:25:31,377 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 01:25:31,377 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-23 01:25:31,377 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 01:25:31,378 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-23 01:25:31,378 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-23 01:25:31,378 INFO L87 Difference]: Start difference. First operand 5677 states and 7964 transitions. Second operand has 9 states, 9 states have (on average 12.777777777777779) internal successors, (115), 9 states have internal predecessors, (115), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-23 01:25:31,833 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 01:25:31,833 INFO L93 Difference]: Finished difference Result 11505 states and 16149 transitions. [2024-11-23 01:25:31,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-23 01:25:31,834 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.777777777777779) internal successors, (115), 9 states have internal predecessors, (115), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 136 [2024-11-23 01:25:31,834 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 01:25:31,851 INFO L225 Difference]: With dead ends: 11505 [2024-11-23 01:25:31,852 INFO L226 Difference]: Without dead ends: 5885 [2024-11-23 01:25:31,861 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-23 01:25:31,862 INFO L432 NwaCegarLoop]: 577 mSDtfsCounter, 21 mSDsluCounter, 3669 mSDsCounter, 0 mSdLazyCounter, 493 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 4246 SdHoareTripleChecker+Invalid, 495 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 493 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-23 01:25:31,863 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 4246 Invalid, 495 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 493 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-23 01:25:31,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5885 states. [2024-11-23 01:25:31,989 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5885 to 5759. [2024-11-23 01:25:31,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5759 states, 5545 states have (on average 1.392966636609558) internal successors, (7724), 5568 states have internal predecessors, (7724), 157 states have call successors, (157), 50 states have call predecessors, (157), 44 states have return successors, (192), 140 states have call predecessors, (192), 157 states have call successors, (192) [2024-11-23 01:25:32,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5759 states to 5759 states and 8073 transitions. [2024-11-23 01:25:32,008 INFO L78 Accepts]: Start accepts. Automaton has 5759 states and 8073 transitions. Word has length 136 [2024-11-23 01:25:32,008 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 01:25:32,009 INFO L471 AbstractCegarLoop]: Abstraction has 5759 states and 8073 transitions. [2024-11-23 01:25:32,009 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.777777777777779) internal successors, (115), 9 states have internal predecessors, (115), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-23 01:25:32,009 INFO L276 IsEmpty]: Start isEmpty. Operand 5759 states and 8073 transitions. [2024-11-23 01:25:32,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2024-11-23 01:25:32,010 INFO L207 NwaCegarLoop]: Found error trace [2024-11-23 01:25:32,010 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 01:25:32,011 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-23 01:25:32,011 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-23 01:25:32,011 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 01:25:32,011 INFO L85 PathProgramCache]: Analyzing trace with hash 1418064185, now seen corresponding path program 1 times [2024-11-23 01:25:32,011 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 01:25:32,012 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1158899296] [2024-11-23 01:25:32,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 01:25:32,012 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 01:25:32,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 01:25:32,422 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-23 01:25:32,422 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 01:25:32,422 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1158899296] [2024-11-23 01:25:32,422 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1158899296] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 01:25:32,422 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [605986436] [2024-11-23 01:25:32,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 01:25:32,422 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 01:25:32,423 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-23 01:25:32,425 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) [2024-11-23 01:25:32,426 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-23 01:25:32,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 01:25:32,890 INFO L255 TraceCheckSpWp]: Trace formula consists of 807 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-23 01:25:32,893 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 01:25:32,986 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-23 01:25:32,986 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 01:25:32,986 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [605986436] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 01:25:32,989 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-23 01:25:32,989 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [5] total 10 [2024-11-23 01:25:32,990 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [176181605] [2024-11-23 01:25:32,990 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 01:25:32,990 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-23 01:25:32,994 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 01:25:32,995 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-23 01:25:32,995 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-11-23 01:25:32,995 INFO L87 Difference]: Start difference. First operand 5759 states and 8073 transitions. Second operand has 7 states, 7 states have (on average 16.571428571428573) internal successors, (116), 7 states have internal predecessors, (116), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-23 01:25:33,418 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 01:25:33,418 INFO L93 Difference]: Finished difference Result 11530 states and 16179 transitions. [2024-11-23 01:25:33,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-23 01:25:33,419 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.571428571428573) internal successors, (116), 7 states have internal predecessors, (116), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 137 [2024-11-23 01:25:33,419 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 01:25:33,437 INFO L225 Difference]: With dead ends: 11530 [2024-11-23 01:25:33,437 INFO L226 Difference]: Without dead ends: 5850 [2024-11-23 01:25:33,447 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 143 GetRequests, 133 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2024-11-23 01:25:33,448 INFO L432 NwaCegarLoop]: 573 mSDtfsCounter, 40 mSDsluCounter, 2593 mSDsCounter, 0 mSdLazyCounter, 355 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 3166 SdHoareTripleChecker+Invalid, 359 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 355 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-23 01:25:33,449 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 3166 Invalid, 359 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 355 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-23 01:25:33,456 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5850 states. [2024-11-23 01:25:33,597 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5850 to 5785. [2024-11-23 01:25:33,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5785 states, 5571 states have (on average 1.3911326512295819) internal successors, (7750), 5594 states have internal predecessors, (7750), 157 states have call successors, (157), 50 states have call predecessors, (157), 44 states have return successors, (192), 140 states have call predecessors, (192), 157 states have call successors, (192) [2024-11-23 01:25:33,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5785 states to 5785 states and 8099 transitions. [2024-11-23 01:25:33,616 INFO L78 Accepts]: Start accepts. Automaton has 5785 states and 8099 transitions. Word has length 137 [2024-11-23 01:25:33,617 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 01:25:33,617 INFO L471 AbstractCegarLoop]: Abstraction has 5785 states and 8099 transitions. [2024-11-23 01:25:33,617 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.571428571428573) internal successors, (116), 7 states have internal predecessors, (116), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-23 01:25:33,617 INFO L276 IsEmpty]: Start isEmpty. Operand 5785 states and 8099 transitions. [2024-11-23 01:25:33,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2024-11-23 01:25:33,618 INFO L207 NwaCegarLoop]: Found error trace [2024-11-23 01:25:33,619 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 01:25:33,632 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2024-11-23 01:25:33,819 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 01:25:33,819 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-23 01:25:33,820 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 01:25:33,820 INFO L85 PathProgramCache]: Analyzing trace with hash -1659367086, now seen corresponding path program 1 times [2024-11-23 01:25:33,820 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 01:25:33,820 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [663011506] [2024-11-23 01:25:33,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 01:25:33,820 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 01:25:34,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 01:25:34,342 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-23 01:25:34,342 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 01:25:34,342 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [663011506] [2024-11-23 01:25:34,343 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [663011506] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 01:25:34,343 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [199831702] [2024-11-23 01:25:34,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 01:25:34,343 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 01:25:34,343 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-23 01:25:34,346 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) [2024-11-23 01:25:34,347 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-11-23 01:25:34,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 01:25:34,916 INFO L255 TraceCheckSpWp]: Trace formula consists of 807 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-11-23 01:25:34,919 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 01:25:35,007 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 01:25:35,008 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 01:25:35,008 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [199831702] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 01:25:35,008 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-23 01:25:35,008 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [5] total 11 [2024-11-23 01:25:35,009 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [104018022] [2024-11-23 01:25:35,009 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 01:25:35,009 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-23 01:25:35,009 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 01:25:35,010 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-23 01:25:35,010 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2024-11-23 01:25:35,010 INFO L87 Difference]: Start difference. First operand 5785 states and 8099 transitions. Second operand has 9 states, 9 states have (on average 14.11111111111111) internal successors, (127), 9 states have internal predecessors, (127), 3 states have call successors, (5), 2 states have call predecessors, (5), 4 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2024-11-23 01:25:35,225 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 01:25:35,226 INFO L93 Difference]: Finished difference Result 8815 states and 12310 transitions. [2024-11-23 01:25:35,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-23 01:25:35,227 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 14.11111111111111) internal successors, (127), 9 states have internal predecessors, (127), 3 states have call successors, (5), 2 states have call predecessors, (5), 4 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) Word has length 137 [2024-11-23 01:25:35,227 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 01:25:35,237 INFO L225 Difference]: With dead ends: 8815 [2024-11-23 01:25:35,238 INFO L226 Difference]: Without dead ends: 3134 [2024-11-23 01:25:35,249 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 143 GetRequests, 132 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2024-11-23 01:25:35,250 INFO L432 NwaCegarLoop]: 586 mSDtfsCounter, 13 mSDsluCounter, 4064 mSDsCounter, 0 mSdLazyCounter, 129 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 4650 SdHoareTripleChecker+Invalid, 135 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 129 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-23 01:25:35,250 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 4650 Invalid, 135 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 129 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-23 01:25:35,252 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3134 states. [2024-11-23 01:25:35,361 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3134 to 3132. [2024-11-23 01:25:35,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3132 states, 2994 states have (on average 1.379425517702071) internal successors, (4130), 3010 states have internal predecessors, (4130), 86 states have call successors, (86), 42 states have call predecessors, (86), 39 states have return successors, (97), 79 states have call predecessors, (97), 86 states have call successors, (97) [2024-11-23 01:25:35,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3132 states to 3132 states and 4313 transitions. [2024-11-23 01:25:35,371 INFO L78 Accepts]: Start accepts. Automaton has 3132 states and 4313 transitions. Word has length 137 [2024-11-23 01:25:35,371 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 01:25:35,372 INFO L471 AbstractCegarLoop]: Abstraction has 3132 states and 4313 transitions. [2024-11-23 01:25:35,372 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 14.11111111111111) internal successors, (127), 9 states have internal predecessors, (127), 3 states have call successors, (5), 2 states have call predecessors, (5), 4 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2024-11-23 01:25:35,372 INFO L276 IsEmpty]: Start isEmpty. Operand 3132 states and 4313 transitions. [2024-11-23 01:25:35,373 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2024-11-23 01:25:35,373 INFO L207 NwaCegarLoop]: Found error trace [2024-11-23 01:25:35,373 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 01:25:35,386 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2024-11-23 01:25:35,574 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2024-11-23 01:25:35,574 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-23 01:25:35,574 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 01:25:35,575 INFO L85 PathProgramCache]: Analyzing trace with hash -109109404, now seen corresponding path program 1 times [2024-11-23 01:25:35,575 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 01:25:35,575 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [465171209] [2024-11-23 01:25:35,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 01:25:35,575 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 01:25:35,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 01:25:36,150 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 6 proven. 10 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-11-23 01:25:36,150 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 01:25:36,150 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [465171209] [2024-11-23 01:25:36,150 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [465171209] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 01:25:36,151 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1798953692] [2024-11-23 01:25:36,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 01:25:36,151 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 01:25:36,151 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-23 01:25:36,154 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) [2024-11-23 01:25:36,156 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-11-23 01:25:36,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 01:25:36,669 INFO L255 TraceCheckSpWp]: Trace formula consists of 837 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-11-23 01:25:36,673 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 01:25:36,873 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2024-11-23 01:25:36,874 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 01:25:36,874 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1798953692] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 01:25:36,874 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-23 01:25:36,874 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [6] total 11 [2024-11-23 01:25:36,874 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [83731253] [2024-11-23 01:25:36,874 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 01:25:36,875 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-23 01:25:36,875 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 01:25:36,875 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-23 01:25:36,876 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2024-11-23 01:25:36,876 INFO L87 Difference]: Start difference. First operand 3132 states and 4313 transitions. Second operand has 7 states, 7 states have (on average 16.714285714285715) internal successors, (117), 7 states have internal predecessors, (117), 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) [2024-11-23 01:25:37,253 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 01:25:37,253 INFO L93 Difference]: Finished difference Result 6241 states and 8621 transitions. [2024-11-23 01:25:37,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-23 01:25:37,254 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.714285714285715) internal successors, (117), 7 states have internal predecessors, (117), 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 [2024-11-23 01:25:37,255 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 01:25:37,264 INFO L225 Difference]: With dead ends: 6241 [2024-11-23 01:25:37,264 INFO L226 Difference]: Without dead ends: 3185 [2024-11-23 01:25:37,269 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 144 GetRequests, 135 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2024-11-23 01:25:37,270 INFO L432 NwaCegarLoop]: 584 mSDtfsCounter, 10 mSDsluCounter, 2571 mSDsCounter, 0 mSdLazyCounter, 424 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 3155 SdHoareTripleChecker+Invalid, 425 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 424 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-23 01:25:37,271 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 3155 Invalid, 425 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 424 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-23 01:25:37,274 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3185 states. [2024-11-23 01:25:37,350 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3185 to 3132. [2024-11-23 01:25:37,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3132 states, 2994 states have (on average 1.379425517702071) internal successors, (4130), 3010 states have internal predecessors, (4130), 86 states have call successors, (86), 42 states have call predecessors, (86), 39 states have return successors, (97), 79 states have call predecessors, (97), 86 states have call successors, (97) [2024-11-23 01:25:37,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3132 states to 3132 states and 4313 transitions. [2024-11-23 01:25:37,361 INFO L78 Accepts]: Start accepts. Automaton has 3132 states and 4313 transitions. Word has length 139 [2024-11-23 01:25:37,362 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 01:25:37,362 INFO L471 AbstractCegarLoop]: Abstraction has 3132 states and 4313 transitions. [2024-11-23 01:25:37,362 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.714285714285715) internal successors, (117), 7 states have internal predecessors, (117), 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) [2024-11-23 01:25:37,362 INFO L276 IsEmpty]: Start isEmpty. Operand 3132 states and 4313 transitions. [2024-11-23 01:25:37,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2024-11-23 01:25:37,364 INFO L207 NwaCegarLoop]: Found error trace [2024-11-23 01:25:37,364 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 01:25:37,376 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2024-11-23 01:25:37,564 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2024-11-23 01:25:37,565 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-23 01:25:37,565 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 01:25:37,566 INFO L85 PathProgramCache]: Analyzing trace with hash 543242642, now seen corresponding path program 1 times [2024-11-23 01:25:37,566 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 01:25:37,566 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1171486859] [2024-11-23 01:25:37,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 01:25:37,566 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 01:25:37,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 01:25:37,882 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2024-11-23 01:25:37,883 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 01:25:37,883 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1171486859] [2024-11-23 01:25:37,883 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1171486859] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 01:25:37,883 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 01:25:37,883 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-23 01:25:37,883 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1360970663] [2024-11-23 01:25:37,883 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 01:25:37,885 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-23 01:25:37,885 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 01:25:37,886 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-23 01:25:37,886 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-23 01:25:37,886 INFO L87 Difference]: Start difference. First operand 3132 states and 4313 transitions. Second operand has 6 states, 6 states have (on average 19.5) internal successors, (117), 6 states have internal predecessors, (117), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-23 01:25:38,186 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 01:25:38,186 INFO L93 Difference]: Finished difference Result 6193 states and 8540 transitions. [2024-11-23 01:25:38,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-23 01:25:38,187 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 19.5) internal successors, (117), 6 states have internal predecessors, (117), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 139 [2024-11-23 01:25:38,187 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 01:25:38,197 INFO L225 Difference]: With dead ends: 6193 [2024-11-23 01:25:38,197 INFO L226 Difference]: Without dead ends: 3132 [2024-11-23 01:25:38,203 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-23 01:25:38,204 INFO L432 NwaCegarLoop]: 588 mSDtfsCounter, 8 mSDsluCounter, 2056 mSDsCounter, 0 mSdLazyCounter, 309 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 2644 SdHoareTripleChecker+Invalid, 309 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 309 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-23 01:25:38,204 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 2644 Invalid, 309 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 309 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-23 01:25:38,207 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3132 states. [2024-11-23 01:25:38,282 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3132 to 3132. [2024-11-23 01:25:38,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3132 states, 2994 states have (on average 1.3770875083500334) internal successors, (4123), 3010 states have internal predecessors, (4123), 86 states have call successors, (86), 42 states have call predecessors, (86), 39 states have return successors, (97), 79 states have call predecessors, (97), 86 states have call successors, (97) [2024-11-23 01:25:38,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3132 states to 3132 states and 4306 transitions. [2024-11-23 01:25:38,294 INFO L78 Accepts]: Start accepts. Automaton has 3132 states and 4306 transitions. Word has length 139 [2024-11-23 01:25:38,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 01:25:38,294 INFO L471 AbstractCegarLoop]: Abstraction has 3132 states and 4306 transitions. [2024-11-23 01:25:38,294 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 19.5) internal successors, (117), 6 states have internal predecessors, (117), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-23 01:25:38,294 INFO L276 IsEmpty]: Start isEmpty. Operand 3132 states and 4306 transitions. [2024-11-23 01:25:38,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2024-11-23 01:25:38,296 INFO L207 NwaCegarLoop]: Found error trace [2024-11-23 01:25:38,296 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 01:25:38,296 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-23 01:25:38,296 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-23 01:25:38,297 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 01:25:38,297 INFO L85 PathProgramCache]: Analyzing trace with hash -1655019153, now seen corresponding path program 1 times [2024-11-23 01:25:38,297 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 01:25:38,297 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1003239775] [2024-11-23 01:25:38,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 01:25:38,297 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 01:25:38,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 01:25:38,768 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2024-11-23 01:25:38,768 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 01:25:38,768 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1003239775] [2024-11-23 01:25:38,769 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1003239775] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 01:25:38,769 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 01:25:38,769 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-23 01:25:38,769 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [302586570] [2024-11-23 01:25:38,769 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 01:25:38,770 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-23 01:25:38,770 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 01:25:38,770 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-23 01:25:38,770 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2024-11-23 01:25:38,771 INFO L87 Difference]: Start difference. First operand 3132 states and 4306 transitions. Second operand has 10 states, 10 states have (on average 11.7) internal successors, (117), 10 states have internal predecessors, (117), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-23 01:25:39,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 01:25:39,258 INFO L93 Difference]: Finished difference Result 6293 states and 8672 transitions. [2024-11-23 01:25:39,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-23 01:25:39,259 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 11.7) internal successors, (117), 10 states have internal predecessors, (117), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 139 [2024-11-23 01:25:39,259 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 01:25:39,269 INFO L225 Difference]: With dead ends: 6293 [2024-11-23 01:25:39,270 INFO L226 Difference]: Without dead ends: 3237 [2024-11-23 01:25:39,274 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2024-11-23 01:25:39,275 INFO L432 NwaCegarLoop]: 590 mSDtfsCounter, 23 mSDsluCounter, 4179 mSDsCounter, 0 mSdLazyCounter, 738 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 4769 SdHoareTripleChecker+Invalid, 739 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 738 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-23 01:25:39,275 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 4769 Invalid, 739 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 738 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-23 01:25:39,277 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3237 states. [2024-11-23 01:25:39,356 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3237 to 3195. [2024-11-23 01:25:39,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3195 states, 3057 states have (on average 1.3732417402682369) internal successors, (4198), 3073 states have internal predecessors, (4198), 86 states have call successors, (86), 42 states have call predecessors, (86), 39 states have return successors, (97), 79 states have call predecessors, (97), 86 states have call successors, (97) [2024-11-23 01:25:39,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3195 states to 3195 states and 4381 transitions. [2024-11-23 01:25:39,368 INFO L78 Accepts]: Start accepts. Automaton has 3195 states and 4381 transitions. Word has length 139 [2024-11-23 01:25:39,368 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 01:25:39,368 INFO L471 AbstractCegarLoop]: Abstraction has 3195 states and 4381 transitions. [2024-11-23 01:25:39,368 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 11.7) internal successors, (117), 10 states have internal predecessors, (117), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-23 01:25:39,369 INFO L276 IsEmpty]: Start isEmpty. Operand 3195 states and 4381 transitions. [2024-11-23 01:25:39,370 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2024-11-23 01:25:39,370 INFO L207 NwaCegarLoop]: Found error trace [2024-11-23 01:25:39,370 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 01:25:39,370 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-23 01:25:39,371 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-23 01:25:39,371 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 01:25:39,371 INFO L85 PathProgramCache]: Analyzing trace with hash 379320837, now seen corresponding path program 1 times [2024-11-23 01:25:39,371 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 01:25:39,372 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [842475247] [2024-11-23 01:25:39,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 01:25:39,372 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 01:25:39,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 01:25:39,896 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 6 proven. 10 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-11-23 01:25:39,896 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 01:25:39,896 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [842475247] [2024-11-23 01:25:39,896 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [842475247] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 01:25:39,896 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1894672661] [2024-11-23 01:25:39,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 01:25:39,897 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 01:25:39,897 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-23 01:25:39,899 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) [2024-11-23 01:25:39,901 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-11-23 01:25:40,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 01:25:40,397 INFO L255 TraceCheckSpWp]: Trace formula consists of 835 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-11-23 01:25:40,400 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 01:25:40,497 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 23 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-23 01:25:40,498 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 01:25:40,654 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 6 proven. 10 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-11-23 01:25:40,655 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1894672661] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-23 01:25:40,655 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-23 01:25:40,655 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 10, 6] total 17 [2024-11-23 01:25:40,655 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1150967826] [2024-11-23 01:25:40,656 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-23 01:25:40,656 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-11-23 01:25:40,656 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 01:25:40,657 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-11-23 01:25:40,657 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=220, Unknown=0, NotChecked=0, Total=272 [2024-11-23 01:25:40,657 INFO L87 Difference]: Start difference. First operand 3195 states and 4381 transitions. Second operand has 17 states, 17 states have (on average 9.352941176470589) internal successors, (159), 17 states have internal predecessors, (159), 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) [2024-11-23 01:25:41,012 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 01:25:41,012 INFO L93 Difference]: Finished difference Result 6336 states and 8715 transitions. [2024-11-23 01:25:41,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-23 01:25:41,013 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 9.352941176470589) internal successors, (159), 17 states have internal predecessors, (159), 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 [2024-11-23 01:25:41,014 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 01:25:41,023 INFO L225 Difference]: With dead ends: 6336 [2024-11-23 01:25:41,024 INFO L226 Difference]: Without dead ends: 3257 [2024-11-23 01:25:41,029 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 294 GetRequests, 271 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=114, Invalid=486, Unknown=0, NotChecked=0, Total=600 [2024-11-23 01:25:41,029 INFO L432 NwaCegarLoop]: 586 mSDtfsCounter, 22 mSDsluCounter, 4664 mSDsCounter, 0 mSdLazyCounter, 248 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 5250 SdHoareTripleChecker+Invalid, 257 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 248 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-23 01:25:41,030 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 5250 Invalid, 257 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 248 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-23 01:25:41,032 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3257 states. [2024-11-23 01:25:41,114 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3257 to 3235. [2024-11-23 01:25:41,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3235 states, 3096 states have (on average 1.3737080103359174) internal successors, (4253), 3109 states have internal predecessors, (4253), 86 states have call successors, (86), 46 states have call predecessors, (86), 40 states have return successors, (93), 79 states have call predecessors, (93), 86 states have call successors, (93) [2024-11-23 01:25:41,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3235 states to 3235 states and 4432 transitions. [2024-11-23 01:25:41,127 INFO L78 Accepts]: Start accepts. Automaton has 3235 states and 4432 transitions. Word has length 140 [2024-11-23 01:25:41,127 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 01:25:41,127 INFO L471 AbstractCegarLoop]: Abstraction has 3235 states and 4432 transitions. [2024-11-23 01:25:41,128 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 9.352941176470589) internal successors, (159), 17 states have internal predecessors, (159), 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) [2024-11-23 01:25:41,128 INFO L276 IsEmpty]: Start isEmpty. Operand 3235 states and 4432 transitions. [2024-11-23 01:25:41,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2024-11-23 01:25:41,129 INFO L207 NwaCegarLoop]: Found error trace [2024-11-23 01:25:41,130 INFO L215 NwaCegarLoop]: trace histogram [6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 01:25:41,142 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2024-11-23 01:25:41,330 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2024-11-23 01:25:41,332 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-23 01:25:41,332 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 01:25:41,332 INFO L85 PathProgramCache]: Analyzing trace with hash 394880083, now seen corresponding path program 2 times [2024-11-23 01:25:41,332 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 01:25:41,332 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1317580219] [2024-11-23 01:25:41,332 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-23 01:25:41,332 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 01:25:41,672 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-23 01:25:41,673 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-23 01:25:42,186 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 6 proven. 30 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-23 01:25:42,186 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 01:25:42,186 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1317580219] [2024-11-23 01:25:42,187 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1317580219] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 01:25:42,187 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1125428283] [2024-11-23 01:25:42,187 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-23 01:25:42,187 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 01:25:42,187 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-23 01:25:42,190 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 01:25:42,192 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-11-23 01:25:42,613 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-23 01:25:42,613 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-23 01:25:42,614 INFO L255 TraceCheckSpWp]: Trace formula consists of 120 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-23 01:25:42,618 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 01:25:42,637 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 [2024-11-23 01:25:42,651 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2024-11-23 01:25:42,651 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 01:25:42,651 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1125428283] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 01:25:42,652 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-23 01:25:42,652 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [9] total 10 [2024-11-23 01:25:42,652 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1766562230] [2024-11-23 01:25:42,652 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 01:25:42,653 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 01:25:42,653 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 01:25:42,654 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 01:25:42,654 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2024-11-23 01:25:42,654 INFO L87 Difference]: Start difference. First operand 3235 states and 4432 transitions. Second operand has 3 states, 2 states have (on average 57.0) internal successors, (114), 3 states have internal predecessors, (114), 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) [2024-11-23 01:25:42,766 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 01:25:42,766 INFO L93 Difference]: Finished difference Result 3235 states and 4432 transitions. [2024-11-23 01:25:42,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 01:25:42,767 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 57.0) internal successors, (114), 3 states have internal predecessors, (114), 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 144 [2024-11-23 01:25:42,767 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 01:25:42,778 INFO L225 Difference]: With dead ends: 3235 [2024-11-23 01:25:42,778 INFO L226 Difference]: Without dead ends: 3234 [2024-11-23 01:25:42,780 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 152 GetRequests, 144 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2024-11-23 01:25:42,781 INFO L432 NwaCegarLoop]: 594 mSDtfsCounter, 1 mSDsluCounter, 592 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 1186 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 [2024-11-23 01:25:42,781 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 1186 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 01:25:42,784 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3234 states. [2024-11-23 01:25:42,897 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3234 to 3234. [2024-11-23 01:25:42,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3234 states, 3096 states have (on average 1.3717700258397933) internal successors, (4247), 3108 states have internal predecessors, (4247), 86 states have call successors, (86), 46 states have call predecessors, (86), 40 states have return successors, (93), 79 states have call predecessors, (93), 86 states have call successors, (93) [2024-11-23 01:25:42,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3234 states to 3234 states and 4426 transitions. [2024-11-23 01:25:42,909 INFO L78 Accepts]: Start accepts. Automaton has 3234 states and 4426 transitions. Word has length 144 [2024-11-23 01:25:42,910 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 01:25:42,910 INFO L471 AbstractCegarLoop]: Abstraction has 3234 states and 4426 transitions. [2024-11-23 01:25:42,910 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 57.0) internal successors, (114), 3 states have internal predecessors, (114), 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) [2024-11-23 01:25:42,910 INFO L276 IsEmpty]: Start isEmpty. Operand 3234 states and 4426 transitions. [2024-11-23 01:25:42,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2024-11-23 01:25:42,911 INFO L207 NwaCegarLoop]: Found error trace [2024-11-23 01:25:42,912 INFO L215 NwaCegarLoop]: trace histogram [6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 01:25:42,921 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2024-11-23 01:25:43,112 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 01:25:43,113 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-23 01:25:43,113 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 01:25:43,113 INFO L85 PathProgramCache]: Analyzing trace with hash -643619212, now seen corresponding path program 1 times [2024-11-23 01:25:43,114 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 01:25:43,114 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1350907884] [2024-11-23 01:25:43,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 01:25:43,114 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 01:25:43,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 01:25:43,771 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 7 proven. 30 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-23 01:25:43,771 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 01:25:43,772 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1350907884] [2024-11-23 01:25:43,772 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1350907884] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 01:25:43,772 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1565939448] [2024-11-23 01:25:43,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 01:25:43,772 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 01:25:43,772 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-23 01:25:43,775 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 01:25:43,776 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2024-11-23 01:25:44,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 01:25:44,323 INFO L255 TraceCheckSpWp]: Trace formula consists of 896 conjuncts, 29 conjuncts are in the unsatisfiable core [2024-11-23 01:25:44,327 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 01:25:44,504 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 35 proven. 10 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-23 01:25:44,504 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 01:25:44,783 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 7 proven. 30 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-23 01:25:44,783 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1565939448] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-23 01:25:44,784 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-23 01:25:44,784 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 14, 9] total 27 [2024-11-23 01:25:44,784 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1763302537] [2024-11-23 01:25:44,784 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-23 01:25:44,785 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2024-11-23 01:25:44,785 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 01:25:44,785 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2024-11-23 01:25:44,786 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=126, Invalid=576, Unknown=0, NotChecked=0, Total=702 [2024-11-23 01:25:44,786 INFO L87 Difference]: Start difference. First operand 3234 states and 4426 transitions. Second operand has 27 states, 27 states have (on average 6.333333333333333) internal successors, (171), 27 states have internal predecessors, (171), 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) [2024-11-23 01:25:45,879 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 01:25:45,879 INFO L93 Difference]: Finished difference Result 6443 states and 8857 transitions. [2024-11-23 01:25:45,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2024-11-23 01:25:45,880 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 27 states have (on average 6.333333333333333) internal successors, (171), 27 states have internal predecessors, (171), 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 145 [2024-11-23 01:25:45,880 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 01:25:45,893 INFO L225 Difference]: With dead ends: 6443 [2024-11-23 01:25:45,893 INFO L226 Difference]: Without dead ends: 3310 [2024-11-23 01:25:45,898 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 316 GetRequests, 274 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 182 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=380, Invalid=1512, Unknown=0, NotChecked=0, Total=1892 [2024-11-23 01:25:45,899 INFO L432 NwaCegarLoop]: 573 mSDtfsCounter, 67 mSDsluCounter, 8517 mSDsCounter, 0 mSdLazyCounter, 723 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 9090 SdHoareTripleChecker+Invalid, 749 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 723 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-23 01:25:45,899 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [67 Valid, 9090 Invalid, 749 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 723 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-23 01:25:45,902 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3310 states. [2024-11-23 01:25:45,994 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3310 to 3279. [2024-11-23 01:25:45,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3279 states, 3141 states have (on average 1.3673989175421841) internal successors, (4295), 3153 states have internal predecessors, (4295), 86 states have call successors, (86), 46 states have call predecessors, (86), 40 states have return successors, (93), 79 states have call predecessors, (93), 86 states have call successors, (93) [2024-11-23 01:25:46,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3279 states to 3279 states and 4474 transitions. [2024-11-23 01:25:46,008 INFO L78 Accepts]: Start accepts. Automaton has 3279 states and 4474 transitions. Word has length 145 [2024-11-23 01:25:46,008 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 01:25:46,009 INFO L471 AbstractCegarLoop]: Abstraction has 3279 states and 4474 transitions. [2024-11-23 01:25:46,009 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 27 states have (on average 6.333333333333333) internal successors, (171), 27 states have internal predecessors, (171), 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) [2024-11-23 01:25:46,009 INFO L276 IsEmpty]: Start isEmpty. Operand 3279 states and 4474 transitions. [2024-11-23 01:25:46,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2024-11-23 01:25:46,010 INFO L207 NwaCegarLoop]: Found error trace [2024-11-23 01:25:46,010 INFO L215 NwaCegarLoop]: trace histogram [15, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 01:25:46,022 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2024-11-23 01:25:46,211 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2024-11-23 01:25:46,212 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-23 01:25:46,212 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 01:25:46,212 INFO L85 PathProgramCache]: Analyzing trace with hash -2014979523, now seen corresponding path program 2 times [2024-11-23 01:25:46,212 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 01:25:46,212 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1722933203] [2024-11-23 01:25:46,213 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-23 01:25:46,213 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 01:25:46,401 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-23 01:25:46,401 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-23 01:25:47,195 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 7 proven. 126 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2024-11-23 01:25:47,196 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 01:25:47,196 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1722933203] [2024-11-23 01:25:47,196 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1722933203] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 01:25:47,196 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1725868641] [2024-11-23 01:25:47,196 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-23 01:25:47,197 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 01:25:47,197 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-23 01:25:47,199 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 01:25:47,202 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2024-11-23 01:25:47,882 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-23 01:25:47,882 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-23 01:25:47,888 INFO L255 TraceCheckSpWp]: Trace formula consists of 1031 conjuncts, 50 conjuncts are in the unsatisfiable core [2024-11-23 01:25:47,891 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 01:25:48,272 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 8 proven. 129 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2024-11-23 01:25:48,272 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 01:25:48,735 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 78 proven. 15 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2024-11-23 01:25:48,736 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1725868641] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-23 01:25:48,736 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-23 01:25:48,736 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 16, 10] total 36 [2024-11-23 01:25:48,736 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1947455007] [2024-11-23 01:25:48,736 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-23 01:25:48,736 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2024-11-23 01:25:48,737 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 01:25:48,737 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2024-11-23 01:25:48,737 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=215, Invalid=1045, Unknown=0, NotChecked=0, Total=1260 [2024-11-23 01:25:48,738 INFO L87 Difference]: Start difference. First operand 3279 states and 4474 transitions. Second operand has 36 states, 36 states have (on average 4.805555555555555) internal successors, (173), 36 states have internal predecessors, (173), 3 states have call successors, (8), 1 states have call predecessors, (8), 7 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2024-11-23 01:25:50,667 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 01:25:50,667 INFO L93 Difference]: Finished difference Result 6570 states and 9029 transitions. [2024-11-23 01:25:50,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2024-11-23 01:25:50,668 INFO L78 Accepts]: Start accepts. Automaton has has 36 states, 36 states have (on average 4.805555555555555) internal successors, (173), 36 states have internal predecessors, (173), 3 states have call successors, (8), 1 states have call predecessors, (8), 7 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 154 [2024-11-23 01:25:50,669 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 01:25:50,682 INFO L225 Difference]: With dead ends: 6570 [2024-11-23 01:25:50,682 INFO L226 Difference]: Without dead ends: 3401 [2024-11-23 01:25:50,689 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 362 GetRequests, 290 SyntacticMatches, 0 SemanticMatches, 72 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 953 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=850, Invalid=4552, Unknown=0, NotChecked=0, Total=5402 [2024-11-23 01:25:50,690 INFO L432 NwaCegarLoop]: 585 mSDtfsCounter, 42 mSDsluCounter, 6989 mSDsCounter, 0 mSdLazyCounter, 722 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 7574 SdHoareTripleChecker+Invalid, 743 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 722 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-23 01:25:50,690 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 7574 Invalid, 743 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 722 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-23 01:25:50,693 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3401 states. [2024-11-23 01:25:50,811 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3401 to 3341. [2024-11-23 01:25:50,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3341 states, 3203 states have (on average 1.3634093037777084) internal successors, (4367), 3214 states have internal predecessors, (4367), 86 states have call successors, (86), 47 states have call predecessors, (86), 40 states have return successors, (93), 79 states have call predecessors, (93), 86 states have call successors, (93) [2024-11-23 01:25:50,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3341 states to 3341 states and 4546 transitions. [2024-11-23 01:25:50,828 INFO L78 Accepts]: Start accepts. Automaton has 3341 states and 4546 transitions. Word has length 154 [2024-11-23 01:25:50,828 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 01:25:50,829 INFO L471 AbstractCegarLoop]: Abstraction has 3341 states and 4546 transitions. [2024-11-23 01:25:50,829 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 36 states have (on average 4.805555555555555) internal successors, (173), 36 states have internal predecessors, (173), 3 states have call successors, (8), 1 states have call predecessors, (8), 7 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2024-11-23 01:25:50,829 INFO L276 IsEmpty]: Start isEmpty. Operand 3341 states and 4546 transitions. [2024-11-23 01:25:50,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2024-11-23 01:25:50,830 INFO L207 NwaCegarLoop]: Found error trace [2024-11-23 01:25:50,831 INFO L215 NwaCegarLoop]: trace histogram [28, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 01:25:50,846 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2024-11-23 01:25:51,031 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2024-11-23 01:25:51,032 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-23 01:25:51,032 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 01:25:51,032 INFO L85 PathProgramCache]: Analyzing trace with hash -115457822, now seen corresponding path program 3 times [2024-11-23 01:25:51,032 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 01:25:51,033 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1349163208] [2024-11-23 01:25:51,033 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-23 01:25:51,033 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 01:25:51,149 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-11-23 01:25:51,150 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-23 01:25:51,809 INFO L134 CoverageAnalysis]: Checked inductivity of 455 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 448 trivial. 0 not checked. [2024-11-23 01:25:51,809 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 01:25:51,809 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1349163208] [2024-11-23 01:25:51,810 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1349163208] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 01:25:51,810 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 01:25:51,810 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-23 01:25:51,810 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [408975387] [2024-11-23 01:25:51,810 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 01:25:51,811 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-23 01:25:51,812 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 01:25:51,812 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-23 01:25:51,813 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2024-11-23 01:25:51,813 INFO L87 Difference]: Start difference. First operand 3341 states and 4546 transitions. Second operand has 10 states, 10 states have (on average 11.9) internal successors, (119), 10 states have internal predecessors, (119), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-23 01:25:53,278 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.21s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-23 01:25:53,805 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 01:25:53,805 INFO L93 Difference]: Finished difference Result 6744 states and 9165 transitions. [2024-11-23 01:25:53,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-23 01:25:53,806 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 11.9) internal successors, (119), 10 states have internal predecessors, (119), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 167 [2024-11-23 01:25:53,806 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 01:25:53,818 INFO L225 Difference]: With dead ends: 6744 [2024-11-23 01:25:53,819 INFO L226 Difference]: Without dead ends: 3487 [2024-11-23 01:25:53,824 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=39, Invalid=171, Unknown=0, NotChecked=0, Total=210 [2024-11-23 01:25:53,825 INFO L432 NwaCegarLoop]: 584 mSDtfsCounter, 47 mSDsluCounter, 4119 mSDsCounter, 0 mSdLazyCounter, 734 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 4703 SdHoareTripleChecker+Invalid, 740 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 734 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-11-23 01:25:53,825 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 4703 Invalid, 740 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 734 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-11-23 01:25:53,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3487 states. [2024-11-23 01:25:53,950 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3487 to 3359. [2024-11-23 01:25:53,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3359 states, 3221 states have (on average 1.3616889164855634) internal successors, (4386), 3232 states have internal predecessors, (4386), 86 states have call successors, (86), 47 states have call predecessors, (86), 40 states have return successors, (93), 79 states have call predecessors, (93), 86 states have call successors, (93) [2024-11-23 01:25:53,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3359 states to 3359 states and 4565 transitions. [2024-11-23 01:25:53,964 INFO L78 Accepts]: Start accepts. Automaton has 3359 states and 4565 transitions. Word has length 167 [2024-11-23 01:25:53,965 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 01:25:53,965 INFO L471 AbstractCegarLoop]: Abstraction has 3359 states and 4565 transitions. [2024-11-23 01:25:53,965 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 11.9) internal successors, (119), 10 states have internal predecessors, (119), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-23 01:25:53,965 INFO L276 IsEmpty]: Start isEmpty. Operand 3359 states and 4565 transitions. [2024-11-23 01:25:53,966 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2024-11-23 01:25:53,967 INFO L207 NwaCegarLoop]: Found error trace [2024-11-23 01:25:53,967 INFO L215 NwaCegarLoop]: trace histogram [28, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 01:25:53,967 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2024-11-23 01:25:53,967 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-23 01:25:53,967 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 01:25:53,968 INFO L85 PathProgramCache]: Analyzing trace with hash 1834159845, now seen corresponding path program 1 times [2024-11-23 01:25:53,968 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 01:25:53,968 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [772703864] [2024-11-23 01:25:53,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 01:25:53,968 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 01:25:54,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 01:25:55,399 INFO L134 CoverageAnalysis]: Checked inductivity of 455 backedges. 7 proven. 287 refuted. 0 times theorem prover too weak. 161 trivial. 0 not checked. [2024-11-23 01:25:55,399 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 01:25:55,400 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [772703864] [2024-11-23 01:25:55,400 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [772703864] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 01:25:55,400 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [509912223] [2024-11-23 01:25:55,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 01:25:55,400 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 01:25:55,401 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-23 01:25:55,403 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 01:25:55,405 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2024-11-23 01:25:57,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 01:25:57,320 INFO L255 TraceCheckSpWp]: Trace formula consists of 1229 conjuncts, 40 conjuncts are in the unsatisfiable core [2024-11-23 01:25:57,324 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 01:25:57,752 INFO L134 CoverageAnalysis]: Checked inductivity of 455 backedges. 236 proven. 66 refuted. 0 times theorem prover too weak. 153 trivial. 0 not checked. [2024-11-23 01:25:57,753 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 01:25:58,503 INFO L134 CoverageAnalysis]: Checked inductivity of 455 backedges. 7 proven. 287 refuted. 0 times theorem prover too weak. 161 trivial. 0 not checked. [2024-11-23 01:25:58,503 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [509912223] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-23 01:25:58,503 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-23 01:25:58,503 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 20, 16] total 47 [2024-11-23 01:25:58,503 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1933672801] [2024-11-23 01:25:58,503 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-23 01:25:58,504 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 47 states [2024-11-23 01:25:58,504 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 01:25:58,505 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 47 interpolants. [2024-11-23 01:25:58,506 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=432, Invalid=1730, Unknown=0, NotChecked=0, Total=2162 [2024-11-23 01:25:58,506 INFO L87 Difference]: Start difference. First operand 3359 states and 4565 transitions. Second operand has 47 states, 47 states have (on average 4.042553191489362) internal successors, (190), 47 states have internal predecessors, (190), 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) [2024-11-23 01:26:06,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 01:26:06,022 INFO L93 Difference]: Finished difference Result 6709 states and 9182 transitions. [2024-11-23 01:26:06,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2024-11-23 01:26:06,022 INFO L78 Accepts]: Start accepts. Automaton has has 47 states, 47 states have (on average 4.042553191489362) internal successors, (190), 47 states have internal predecessors, (190), 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 167 [2024-11-23 01:26:06,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 01:26:06,033 INFO L225 Difference]: With dead ends: 6709 [2024-11-23 01:26:06,034 INFO L226 Difference]: Without dead ends: 3470 [2024-11-23 01:26:06,041 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 388 GetRequests, 305 SyntacticMatches, 0 SemanticMatches, 83 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 797 ImplicationChecksByTransitivity, 7.6s TimeCoverageRelationStatistics Valid=1624, Invalid=5516, Unknown=0, NotChecked=0, Total=7140 [2024-11-23 01:26:06,041 INFO L432 NwaCegarLoop]: 586 mSDtfsCounter, 74 mSDsluCounter, 12235 mSDsCounter, 0 mSdLazyCounter, 1553 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 12821 SdHoareTripleChecker+Invalid, 1590 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 1553 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-23 01:26:06,041 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [74 Valid, 12821 Invalid, 1590 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 1553 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-23 01:26:06,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3470 states. [2024-11-23 01:26:06,232 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3470 to 3437. [2024-11-23 01:26:06,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3437 states, 3299 states have (on average 1.3531373143376781) internal successors, (4464), 3310 states have internal predecessors, (4464), 86 states have call successors, (86), 47 states have call predecessors, (86), 40 states have return successors, (93), 79 states have call predecessors, (93), 86 states have call successors, (93) [2024-11-23 01:26:06,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3437 states to 3437 states and 4643 transitions. [2024-11-23 01:26:06,251 INFO L78 Accepts]: Start accepts. Automaton has 3437 states and 4643 transitions. Word has length 167 [2024-11-23 01:26:06,252 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 01:26:06,252 INFO L471 AbstractCegarLoop]: Abstraction has 3437 states and 4643 transitions. [2024-11-23 01:26:06,252 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 47 states, 47 states have (on average 4.042553191489362) internal successors, (190), 47 states have internal predecessors, (190), 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) [2024-11-23 01:26:06,252 INFO L276 IsEmpty]: Start isEmpty. Operand 3437 states and 4643 transitions. [2024-11-23 01:26:06,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2024-11-23 01:26:06,254 INFO L207 NwaCegarLoop]: Found error trace [2024-11-23 01:26:06,254 INFO L215 NwaCegarLoop]: trace histogram [41, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 01:26:06,301 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2024-11-23 01:26:06,454 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 01:26:06,455 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-23 01:26:06,455 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 01:26:06,456 INFO L85 PathProgramCache]: Analyzing trace with hash -1012776262, now seen corresponding path program 2 times [2024-11-23 01:26:06,456 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 01:26:06,456 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [961781043] [2024-11-23 01:26:06,456 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-23 01:26:06,456 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 01:26:06,695 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-23 01:26:06,695 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-23 01:26:08,710 INFO L134 CoverageAnalysis]: Checked inductivity of 923 backedges. 7 proven. 755 refuted. 0 times theorem prover too weak. 161 trivial. 0 not checked. [2024-11-23 01:26:08,711 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 01:26:08,711 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [961781043] [2024-11-23 01:26:08,711 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [961781043] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 01:26:08,711 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1253655485] [2024-11-23 01:26:08,711 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-23 01:26:08,711 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 01:26:08,711 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-23 01:26:08,714 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 01:26:08,715 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2024-11-23 01:26:10,216 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-23 01:26:10,217 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-23 01:26:10,226 INFO L255 TraceCheckSpWp]: Trace formula consists of 1424 conjuncts, 66 conjuncts are in the unsatisfiable core [2024-11-23 01:26:10,230 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 01:26:11,470 INFO L134 CoverageAnalysis]: Checked inductivity of 923 backedges. 470 proven. 300 refuted. 0 times theorem prover too weak. 153 trivial. 0 not checked. [2024-11-23 01:26:11,470 INFO L311 TraceCheckSpWp]: Computing backward predicates...