./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/uthash-2.0.2/uthash_BER_test6-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 3061b6dc Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/uthash-2.0.2/uthash_BER_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 d952a2ac4207d7207b65e88d163e23d18bb81c0593196a835eab903a81ce4e5c --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-3061b6d-m [2024-11-19 13:29:40,551 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-19 13:29:40,612 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-19 13:29:40,617 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-19 13:29:40,620 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-19 13:29:40,639 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-19 13:29:40,640 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-19 13:29:40,640 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-19 13:29:40,641 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-19 13:29:40,641 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-19 13:29:40,641 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-19 13:29:40,642 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-19 13:29:40,642 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-19 13:29:40,645 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-19 13:29:40,645 INFO L153 SettingsManager]: * Use SBE=true [2024-11-19 13:29:40,645 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-19 13:29:40,646 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-19 13:29:40,646 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-19 13:29:40,646 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-19 13:29:40,647 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-19 13:29:40,648 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-19 13:29:40,648 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-19 13:29:40,648 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-19 13:29:40,649 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-19 13:29:40,649 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-19 13:29:40,649 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-19 13:29:40,649 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-19 13:29:40,649 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-19 13:29:40,650 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-19 13:29:40,650 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-19 13:29:40,650 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-19 13:29:40,650 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-19 13:29:40,650 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-19 13:29:40,651 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-19 13:29:40,651 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 13:29:40,651 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-19 13:29:40,651 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-19 13:29:40,651 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-19 13:29:40,651 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-19 13:29:40,651 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-19 13:29:40,652 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-19 13:29:40,654 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-19 13:29:40,654 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-19 13:29:40,654 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-19 13:29:40,654 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d952a2ac4207d7207b65e88d163e23d18bb81c0593196a835eab903a81ce4e5c [2024-11-19 13:29:40,860 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-19 13:29:40,882 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-19 13:29:40,884 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-19 13:29:40,885 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-19 13:29:40,886 INFO L274 PluginConnector]: CDTParser initialized [2024-11-19 13:29:40,886 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/uthash-2.0.2/uthash_BER_test6-2.i [2024-11-19 13:29:42,256 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-19 13:29:42,474 INFO L384 CDTParser]: Found 1 translation units. [2024-11-19 13:29:42,475 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test6-2.i [2024-11-19 13:29:42,491 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b4cc24f36/61140ef2da214cb88c0c7d660936339c/FLAG23e16a475 [2024-11-19 13:29:42,506 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b4cc24f36/61140ef2da214cb88c0c7d660936339c [2024-11-19 13:29:42,510 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-19 13:29:42,511 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-19 13:29:42,516 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-19 13:29:42,516 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-19 13:29:42,524 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-19 13:29:42,525 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 01:29:42" (1/1) ... [2024-11-19 13:29:42,526 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 19.11 01:29:42, skipping insertion in model container [2024-11-19 13:29:42,526 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 01:29:42" (1/1) ... [2024-11-19 13:29:42,586 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-19 13:29:43,287 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 13:29:43,295 INFO L200 MainTranslator]: Completed pre-run [2024-11-19 13:29:43,363 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 13:29:43,399 INFO L204 MainTranslator]: Completed translation [2024-11-19 13:29:43,400 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:29:43 WrapperNode [2024-11-19 13:29:43,400 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-19 13:29:43,400 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-19 13:29:43,401 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-19 13:29:43,401 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-19 13:29:43,406 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:29:43" (1/1) ... [2024-11-19 13:29:43,431 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:29:43" (1/1) ... [2024-11-19 13:29:43,478 INFO L138 Inliner]: procedures = 282, calls = 353, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 1657 [2024-11-19 13:29:43,479 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-19 13:29:43,479 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-19 13:29:43,480 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-19 13:29:43,480 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-19 13:29:43,497 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:29:43" (1/1) ... [2024-11-19 13:29:43,497 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:29:43" (1/1) ... [2024-11-19 13:29:43,506 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:29:43" (1/1) ... [2024-11-19 13:29:43,592 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]. [2024-11-19 13:29:43,592 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:29:43" (1/1) ... [2024-11-19 13:29:43,592 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:29:43" (1/1) ... [2024-11-19 13:29:43,622 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:29:43" (1/1) ... [2024-11-19 13:29:43,634 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:29:43" (1/1) ... [2024-11-19 13:29:43,646 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:29:43" (1/1) ... [2024-11-19 13:29:43,655 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:29:43" (1/1) ... [2024-11-19 13:29:43,670 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-19 13:29:43,671 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-19 13:29:43,671 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-19 13:29:43,671 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-19 13:29:43,672 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:29:43" (1/1) ... [2024-11-19 13:29:43,676 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 13:29:43,689 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 13:29:43,704 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-19 13:29:43,713 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-19 13:29:43,747 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2024-11-19 13:29:43,747 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2024-11-19 13:29:43,748 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-19 13:29:43,748 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-19 13:29:43,748 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-19 13:29:43,748 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-19 13:29:43,748 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-11-19 13:29:43,748 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-19 13:29:43,748 INFO L130 BoogieDeclarations]: Found specification of procedure alt_bzero [2024-11-19 13:29:43,749 INFO L138 BoogieDeclarations]: Found implementation of procedure alt_bzero [2024-11-19 13:29:43,749 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-19 13:29:43,749 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-19 13:29:43,750 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-19 13:29:43,750 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-19 13:29:43,750 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-19 13:29:43,750 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-19 13:29:43,750 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-19 13:29:43,750 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-19 13:29:43,750 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-19 13:29:43,750 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-19 13:29:43,750 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-19 13:29:43,751 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-19 13:29:43,751 INFO L130 BoogieDeclarations]: Found specification of procedure alt_malloc [2024-11-19 13:29:43,751 INFO L138 BoogieDeclarations]: Found implementation of procedure alt_malloc [2024-11-19 13:29:43,751 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-19 13:29:43,752 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-19 13:29:43,752 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-19 13:29:43,752 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-11-19 13:29:43,752 INFO L130 BoogieDeclarations]: Found specification of procedure alt_free [2024-11-19 13:29:43,752 INFO L138 BoogieDeclarations]: Found implementation of procedure alt_free [2024-11-19 13:29:43,752 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-19 13:29:43,752 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-19 13:29:43,752 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-19 13:29:43,752 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-19 13:29:43,752 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-19 13:29:43,753 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-19 13:29:43,969 INFO L238 CfgBuilder]: Building ICFG [2024-11-19 13:29:43,971 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-19 13:29:45,065 INFO L? ?]: Removed 376 outVars from TransFormulas that were not future-live. [2024-11-19 13:29:45,066 INFO L287 CfgBuilder]: Performing block encoding [2024-11-19 13:29:45,089 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-19 13:29:45,089 INFO L316 CfgBuilder]: Removed 72 assume(true) statements. [2024-11-19 13:29:45,089 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 01:29:45 BoogieIcfgContainer [2024-11-19 13:29:45,089 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-19 13:29:45,095 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-19 13:29:45,095 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-19 13:29:45,097 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-19 13:29:45,097 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 01:29:42" (1/3) ... [2024-11-19 13:29:45,098 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 19.11 01:29:45, skipping insertion in model container [2024-11-19 13:29:45,098 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:29:43" (2/3) ... [2024-11-19 13:29:45,098 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 19.11 01:29:45, skipping insertion in model container [2024-11-19 13:29:45,102 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 01:29:45" (3/3) ... [2024-11-19 13:29:45,103 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_BER_test6-2.i [2024-11-19 13:29:45,127 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-19 13:29:45,127 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 14 error locations. [2024-11-19 13:29:45,216 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-19 13:29:45,224 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] [2024-11-19 13:29:45,228 INFO L334 AbstractCegarLoop]: Starting to check reachability of 14 error locations. [2024-11-19 13:29:45,233 INFO L276 IsEmpty]: Start isEmpty. Operand has 501 states, 462 states have (on average 1.606060606060606) internal successors, (742), 479 states have internal predecessors, (742), 20 states have call successors, (20), 5 states have call predecessors, (20), 5 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-19 13:29:45,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-19 13:29:45,237 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 13:29:45,238 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 13:29:45,238 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-19 13:29:45,242 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 13:29:45,242 INFO L85 PathProgramCache]: Analyzing trace with hash 1635847084, now seen corresponding path program 1 times [2024-11-19 13:29:45,248 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 13:29:45,248 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1419960831] [2024-11-19 13:29:45,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 13:29:45,249 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 13:29:45,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 13:29:45,382 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 13:29:45,383 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 13:29:45,383 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1419960831] [2024-11-19 13:29:45,384 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1419960831] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 13:29:45,384 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 13:29:45,384 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 13:29:45,385 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [922300470] [2024-11-19 13:29:45,385 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 13:29:45,388 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-19 13:29:45,388 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 13:29:45,403 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-19 13:29:45,404 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-19 13:29:45,407 INFO L87 Difference]: Start difference. First operand has 501 states, 462 states have (on average 1.606060606060606) internal successors, (742), 479 states have internal predecessors, (742), 20 states have call successors, (20), 5 states have call predecessors, (20), 5 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) Second operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 13:29:45,476 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 13:29:45,478 INFO L93 Difference]: Finished difference Result 995 states and 1569 transitions. [2024-11-19 13:29:45,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-19 13:29:45,480 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2024-11-19 13:29:45,480 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 13:29:45,493 INFO L225 Difference]: With dead ends: 995 [2024-11-19 13:29:45,493 INFO L226 Difference]: Without dead ends: 487 [2024-11-19 13:29:45,497 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-19 13:29:45,499 INFO L432 NwaCegarLoop]: 695 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 695 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 13:29:45,500 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 695 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 13:29:45,517 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 487 states. [2024-11-19 13:29:45,546 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 487 to 487. [2024-11-19 13:29:45,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 487 states, 454 states have (on average 1.4383259911894273) internal successors, (653), 468 states have internal predecessors, (653), 15 states have call successors, (15), 4 states have call predecessors, (15), 4 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-11-19 13:29:45,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 487 states to 487 states and 683 transitions. [2024-11-19 13:29:45,551 INFO L78 Accepts]: Start accepts. Automaton has 487 states and 683 transitions. Word has length 8 [2024-11-19 13:29:45,551 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 13:29:45,551 INFO L471 AbstractCegarLoop]: Abstraction has 487 states and 683 transitions. [2024-11-19 13:29:45,552 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 13:29:45,552 INFO L276 IsEmpty]: Start isEmpty. Operand 487 states and 683 transitions. [2024-11-19 13:29:45,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-19 13:29:45,552 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 13:29:45,552 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 13:29:45,553 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-19 13:29:45,553 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-19 13:29:45,553 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 13:29:45,553 INFO L85 PathProgramCache]: Analyzing trace with hash 1635849006, now seen corresponding path program 1 times [2024-11-19 13:29:45,554 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 13:29:45,554 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1373035604] [2024-11-19 13:29:45,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 13:29:45,554 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 13:29:45,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-19 13:29:45,602 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [160263330] [2024-11-19 13:29:45,602 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 13:29:45,603 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 13:29:45,603 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 13:29:45,604 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 13:29:45,606 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-19 13:29:45,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 13:29:45,766 INFO L255 TraceCheckSpWp]: Trace formula consists of 120 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-19 13:29:45,770 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 13:29:45,838 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-11-19 13:29:45,872 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 10 [2024-11-19 13:29:45,883 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 13:29:45,883 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 13:29:45,883 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 13:29:45,883 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1373035604] [2024-11-19 13:29:45,884 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-19 13:29:45,884 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [160263330] [2024-11-19 13:29:45,884 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [160263330] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 13:29:45,884 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 13:29:45,884 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 13:29:45,885 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [494187547] [2024-11-19 13:29:45,885 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 13:29:45,885 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 13:29:45,886 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 13:29:45,886 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 13:29:45,887 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-19 13:29:45,887 INFO L87 Difference]: Start difference. First operand 487 states and 683 transitions. Second operand has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 13:29:46,029 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 13:29:46,030 INFO L93 Difference]: Finished difference Result 940 states and 1333 transitions. [2024-11-19 13:29:46,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-19 13:29:46,030 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2024-11-19 13:29:46,030 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 13:29:46,034 INFO L225 Difference]: With dead ends: 940 [2024-11-19 13:29:46,034 INFO L226 Difference]: Without dead ends: 939 [2024-11-19 13:29:46,035 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-19 13:29:46,035 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 [2024-11-19 13:29:46,036 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] [2024-11-19 13:29:46,037 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 939 states. [2024-11-19 13:29:46,053 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 939 to 493. [2024-11-19 13:29:46,054 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) [2024-11-19 13:29:46,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 493 states to 493 states and 690 transitions. [2024-11-19 13:29:46,056 INFO L78 Accepts]: Start accepts. Automaton has 493 states and 690 transitions. Word has length 8 [2024-11-19 13:29:46,056 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 13:29:46,057 INFO L471 AbstractCegarLoop]: Abstraction has 493 states and 690 transitions. [2024-11-19 13:29:46,057 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 13:29:46,057 INFO L276 IsEmpty]: Start isEmpty. Operand 493 states and 690 transitions. [2024-11-19 13:29:46,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-11-19 13:29:46,057 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 13:29:46,057 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 13:29:46,073 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-19 13:29:46,258 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 13:29:46,258 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-19 13:29:46,259 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 13:29:46,259 INFO L85 PathProgramCache]: Analyzing trace with hash -828288263, now seen corresponding path program 1 times [2024-11-19 13:29:46,259 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 13:29:46,259 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1331372927] [2024-11-19 13:29:46,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 13:29:46,260 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 13:29:46,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-19 13:29:46,298 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [825178968] [2024-11-19 13:29:46,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 13:29:46,299 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 13:29:46,299 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 13:29:46,300 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 13:29:46,304 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-19 13:29:46,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 13:29:46,450 INFO L255 TraceCheckSpWp]: Trace formula consists of 121 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-19 13:29:46,452 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 13:29:46,462 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-11-19 13:29:46,489 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 13:29:46,489 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 13:29:46,489 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 13:29:46,491 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1331372927] [2024-11-19 13:29:46,491 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-19 13:29:46,491 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [825178968] [2024-11-19 13:29:46,492 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [825178968] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 13:29:46,492 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 13:29:46,492 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 13:29:46,492 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2105558282] [2024-11-19 13:29:46,492 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 13:29:46,493 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 13:29:46,493 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 13:29:46,493 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 13:29:46,494 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-19 13:29:46,494 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) [2024-11-19 13:29:46,667 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 13:29:46,667 INFO L93 Difference]: Finished difference Result 939 states and 1332 transitions. [2024-11-19 13:29:46,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-19 13:29:46,668 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2024-11-19 13:29:46,668 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 13:29:46,672 INFO L225 Difference]: With dead ends: 939 [2024-11-19 13:29:46,673 INFO L226 Difference]: Without dead ends: 938 [2024-11-19 13:29:46,673 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-19 13:29:46,676 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 [2024-11-19 13:29:46,676 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] [2024-11-19 13:29:46,677 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 938 states. [2024-11-19 13:29:46,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 938 to 494. [2024-11-19 13:29:46,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 494 states, 461 states have (on average 1.4338394793926248) internal successors, (661), 475 states have internal predecessors, (661), 15 states have call successors, (15), 4 states have call predecessors, (15), 4 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-11-19 13:29:46,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 494 states to 494 states and 691 transitions. [2024-11-19 13:29:46,704 INFO L78 Accepts]: Start accepts. Automaton has 494 states and 691 transitions. Word has length 9 [2024-11-19 13:29:46,704 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 13:29:46,704 INFO L471 AbstractCegarLoop]: Abstraction has 494 states and 691 transitions. [2024-11-19 13:29:46,704 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 13:29:46,705 INFO L276 IsEmpty]: Start isEmpty. Operand 494 states and 691 transitions. [2024-11-19 13:29:46,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2024-11-19 13:29:46,709 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 13:29:46,709 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 13:29:46,725 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-19 13:29:46,910 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2024-11-19 13:29:46,911 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)] === [2024-11-19 13:29:46,911 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 13:29:46,911 INFO L85 PathProgramCache]: Analyzing trace with hash -1086501261, now seen corresponding path program 1 times [2024-11-19 13:29:46,912 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 13:29:46,912 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1262492701] [2024-11-19 13:29:46,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 13:29:46,912 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 13:29:46,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 13:29:47,049 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-19 13:29:47,049 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 13:29:47,049 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1262492701] [2024-11-19 13:29:47,049 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1262492701] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 13:29:47,049 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 13:29:47,050 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-19 13:29:47,050 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1289265649] [2024-11-19 13:29:47,050 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 13:29:47,050 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 13:29:47,050 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 13:29:47,051 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 13:29:47,051 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-19 13:29:47,052 INFO L87 Difference]: Start difference. First operand 494 states and 691 transitions. Second operand has 4 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-19 13:29:47,164 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 13:29:47,164 INFO L93 Difference]: Finished difference Result 1192 states and 1688 transitions. [2024-11-19 13:29:47,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-19 13:29:47,164 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 34 [2024-11-19 13:29:47,165 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 13:29:47,168 INFO L225 Difference]: With dead ends: 1192 [2024-11-19 13:29:47,168 INFO L226 Difference]: Without dead ends: 937 [2024-11-19 13:29:47,169 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-19 13:29:47,169 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 [2024-11-19 13:29:47,169 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] [2024-11-19 13:29:47,171 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 937 states. [2024-11-19 13:29:47,178 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 937 to 494. [2024-11-19 13:29:47,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 494 states, 461 states have (on average 1.4316702819956617) internal successors, (660), 475 states have internal predecessors, (660), 15 states have call successors, (15), 4 states have call predecessors, (15), 4 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-11-19 13:29:47,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 494 states to 494 states and 690 transitions. [2024-11-19 13:29:47,181 INFO L78 Accepts]: Start accepts. Automaton has 494 states and 690 transitions. Word has length 34 [2024-11-19 13:29:47,181 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 13:29:47,181 INFO L471 AbstractCegarLoop]: Abstraction has 494 states and 690 transitions. [2024-11-19 13:29:47,181 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-19 13:29:47,182 INFO L276 IsEmpty]: Start isEmpty. Operand 494 states and 690 transitions. [2024-11-19 13:29:47,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2024-11-19 13:29:47,183 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 13:29:47,183 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 13:29:47,183 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-19 13:29:47,183 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-19 13:29:47,184 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 13:29:47,184 INFO L85 PathProgramCache]: Analyzing trace with hash 185612591, now seen corresponding path program 1 times [2024-11-19 13:29:47,184 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 13:29:47,184 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [188802098] [2024-11-19 13:29:47,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 13:29:47,184 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 13:29:47,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 13:29:47,317 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 13:29:47,317 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 13:29:47,317 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [188802098] [2024-11-19 13:29:47,317 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [188802098] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 13:29:47,317 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 13:29:47,317 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-19 13:29:47,318 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1359900289] [2024-11-19 13:29:47,318 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 13:29:47,318 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 13:29:47,318 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 13:29:47,318 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 13:29:47,319 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-19 13:29:47,319 INFO L87 Difference]: Start difference. First operand 494 states and 690 transitions. Second operand has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 13:29:47,386 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 13:29:47,387 INFO L93 Difference]: Finished difference Result 937 states and 1305 transitions. [2024-11-19 13:29:47,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-19 13:29:47,387 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 64 [2024-11-19 13:29:47,387 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 13:29:47,389 INFO L225 Difference]: With dead ends: 937 [2024-11-19 13:29:47,389 INFO L226 Difference]: Without dead ends: 452 [2024-11-19 13:29:47,390 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 [2024-11-19 13:29:47,391 INFO L432 NwaCegarLoop]: 581 mSDtfsCounter, 30 mSDsluCounter, 1143 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s 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 [2024-11-19 13:29:47,391 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] [2024-11-19 13:29:47,392 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 452 states. [2024-11-19 13:29:47,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 452 to 452. [2024-11-19 13:29:47,397 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) [2024-11-19 13:29:47,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 452 states to 452 states and 613 transitions. [2024-11-19 13:29:47,399 INFO L78 Accepts]: Start accepts. Automaton has 452 states and 613 transitions. Word has length 64 [2024-11-19 13:29:47,399 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 13:29:47,399 INFO L471 AbstractCegarLoop]: Abstraction has 452 states and 613 transitions. [2024-11-19 13:29:47,400 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 13:29:47,400 INFO L276 IsEmpty]: Start isEmpty. Operand 452 states and 613 transitions. [2024-11-19 13:29:47,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2024-11-19 13:29:47,401 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 13:29:47,401 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 13:29:47,401 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-19 13:29:47,401 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)] === [2024-11-19 13:29:47,402 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 13:29:47,402 INFO L85 PathProgramCache]: Analyzing trace with hash -878587357, now seen corresponding path program 1 times [2024-11-19 13:29:47,402 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 13:29:47,402 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1375284331] [2024-11-19 13:29:47,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 13:29:47,402 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 13:29:47,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 13:29:47,638 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 13:29:47,638 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 13:29:47,638 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1375284331] [2024-11-19 13:29:47,639 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1375284331] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 13:29:47,639 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 13:29:47,639 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 13:29:47,639 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1841012588] [2024-11-19 13:29:47,639 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 13:29:47,639 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 13:29:47,639 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 13:29:47,639 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 13:29:47,640 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-19 13:29:47,640 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) [2024-11-19 13:29:47,680 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 13:29:47,680 INFO L93 Difference]: Finished difference Result 825 states and 1128 transitions. [2024-11-19 13:29:47,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-19 13:29:47,680 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 64 [2024-11-19 13:29:47,681 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 13:29:47,684 INFO L225 Difference]: With dead ends: 825 [2024-11-19 13:29:47,684 INFO L226 Difference]: Without dead ends: 821 [2024-11-19 13:29:47,685 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-19 13:29:47,685 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 [2024-11-19 13:29:47,685 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] [2024-11-19 13:29:47,686 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 821 states. [2024-11-19 13:29:47,697 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 821 to 813. [2024-11-19 13:29:47,698 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) [2024-11-19 13:29:47,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 813 states to 813 states and 1124 transitions. [2024-11-19 13:29:47,700 INFO L78 Accepts]: Start accepts. Automaton has 813 states and 1124 transitions. Word has length 64 [2024-11-19 13:29:47,700 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 13:29:47,700 INFO L471 AbstractCegarLoop]: Abstraction has 813 states and 1124 transitions. [2024-11-19 13:29:47,701 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 13:29:47,701 INFO L276 IsEmpty]: Start isEmpty. Operand 813 states and 1124 transitions. [2024-11-19 13:29:47,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2024-11-19 13:29:47,702 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 13:29:47,702 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 13:29:47,702 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-19 13:29:47,702 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting alt_bzeroErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-19 13:29:47,702 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 13:29:47,702 INFO L85 PathProgramCache]: Analyzing trace with hash -240672312, now seen corresponding path program 1 times [2024-11-19 13:29:47,703 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 13:29:47,703 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [464618423] [2024-11-19 13:29:47,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 13:29:47,703 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 13:29:47,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 13:29:47,822 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 13:29:47,822 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 13:29:47,822 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [464618423] [2024-11-19 13:29:47,822 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [464618423] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 13:29:47,822 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 13:29:47,822 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 13:29:47,823 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1311747213] [2024-11-19 13:29:47,823 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 13:29:47,823 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 13:29:47,823 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 13:29:47,823 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 13:29:47,824 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 13:29:47,824 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) [2024-11-19 13:29:47,845 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 13:29:47,846 INFO L93 Difference]: Finished difference Result 1087 states and 1500 transitions. [2024-11-19 13:29:47,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 13:29:47,846 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 35.5) internal successors, (71), 3 states have internal predecessors, (71), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 74 [2024-11-19 13:29:47,846 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 13:29:47,849 INFO L225 Difference]: With dead ends: 1087 [2024-11-19 13:29:47,849 INFO L226 Difference]: Without dead ends: 1085 [2024-11-19 13:29:47,850 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 13:29:47,850 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 [2024-11-19 13:29:47,850 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] [2024-11-19 13:29:47,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1085 states. [2024-11-19 13:29:47,865 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1085 to 1075. [2024-11-19 13:29:47,866 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) [2024-11-19 13:29:47,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1075 states to 1075 states and 1498 transitions. [2024-11-19 13:29:47,869 INFO L78 Accepts]: Start accepts. Automaton has 1075 states and 1498 transitions. Word has length 74 [2024-11-19 13:29:47,869 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 13:29:47,869 INFO L471 AbstractCegarLoop]: Abstraction has 1075 states and 1498 transitions. [2024-11-19 13:29:47,869 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 35.5) internal successors, (71), 3 states have internal predecessors, (71), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-19 13:29:47,870 INFO L276 IsEmpty]: Start isEmpty. Operand 1075 states and 1498 transitions. [2024-11-19 13:29:47,870 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2024-11-19 13:29:47,870 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 13:29:47,870 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 13:29:47,871 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-19 13:29:47,871 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-19 13:29:47,871 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 13:29:47,871 INFO L85 PathProgramCache]: Analyzing trace with hash 980932139, now seen corresponding path program 1 times [2024-11-19 13:29:47,871 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 13:29:47,871 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [955936328] [2024-11-19 13:29:47,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 13:29:47,872 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 13:29:47,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 13:29:48,142 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 13:29:48,142 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 13:29:48,142 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [955936328] [2024-11-19 13:29:48,142 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [955936328] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 13:29:48,143 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1062506138] [2024-11-19 13:29:48,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 13:29:48,143 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 13:29:48,146 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 13:29:48,147 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 13:29:48,151 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-19 13:29:48,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 13:29:48,357 INFO L255 TraceCheckSpWp]: Trace formula consists of 506 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-19 13:29:48,360 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 13:29:48,421 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 13:29:48,421 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 13:29:48,421 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1062506138] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 13:29:48,421 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-19 13:29:48,421 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [7] total 10 [2024-11-19 13:29:48,421 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2002602513] [2024-11-19 13:29:48,421 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 13:29:48,422 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-19 13:29:48,422 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 13:29:48,422 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 13:29:48,422 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2024-11-19 13:29:48,422 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) [2024-11-19 13:29:48,488 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 13:29:48,488 INFO L93 Difference]: Finished difference Result 1450 states and 2014 transitions. [2024-11-19 13:29:48,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-19 13:29:48,489 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 19.5) internal successors, (78), 5 states have internal predecessors, (78), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 83 [2024-11-19 13:29:48,490 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 13:29:48,494 INFO L225 Difference]: With dead ends: 1450 [2024-11-19 13:29:48,494 INFO L226 Difference]: Without dead ends: 1449 [2024-11-19 13:29:48,495 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 82 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2024-11-19 13:29:48,496 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 [2024-11-19 13:29:48,496 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] [2024-11-19 13:29:48,497 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1449 states. [2024-11-19 13:29:48,520 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1449 to 1399. [2024-11-19 13:29:48,522 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) [2024-11-19 13:29:48,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1399 states to 1399 states and 1957 transitions. [2024-11-19 13:29:48,527 INFO L78 Accepts]: Start accepts. Automaton has 1399 states and 1957 transitions. Word has length 83 [2024-11-19 13:29:48,528 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 13:29:48,528 INFO L471 AbstractCegarLoop]: Abstraction has 1399 states and 1957 transitions. [2024-11-19 13:29:48,528 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 19.5) internal successors, (78), 5 states have internal predecessors, (78), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-19 13:29:48,528 INFO L276 IsEmpty]: Start isEmpty. Operand 1399 states and 1957 transitions. [2024-11-19 13:29:48,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-11-19 13:29:48,529 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 13:29:48,529 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 13:29:48,544 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-19 13:29:48,729 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 13:29:48,730 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-19 13:29:48,730 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 13:29:48,731 INFO L85 PathProgramCache]: Analyzing trace with hash 344125278, now seen corresponding path program 1 times [2024-11-19 13:29:48,731 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 13:29:48,731 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [570751897] [2024-11-19 13:29:48,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 13:29:48,731 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 13:29:48,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 13:29:48,973 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 13:29:48,973 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 13:29:48,973 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [570751897] [2024-11-19 13:29:48,974 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [570751897] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 13:29:48,974 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1157432026] [2024-11-19 13:29:48,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 13:29:48,974 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 13:29:48,974 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 13:29:48,976 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 13:29:48,983 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-19 13:29:49,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 13:29:49,195 INFO L255 TraceCheckSpWp]: Trace formula consists of 507 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-19 13:29:49,198 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 13:29:49,323 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 13:29:49,323 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 13:29:49,489 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 13:29:49,490 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1157432026] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 13:29:49,490 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 13:29:49,490 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6, 7] total 17 [2024-11-19 13:29:49,490 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [784626922] [2024-11-19 13:29:49,490 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 13:29:49,491 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-19 13:29:49,491 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 13:29:49,491 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-19 13:29:49,491 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=235, Unknown=0, NotChecked=0, Total=306 [2024-11-19 13:29:49,492 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) [2024-11-19 13:29:50,245 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 13:29:50,245 INFO L93 Difference]: Finished difference Result 3780 states and 5271 transitions. [2024-11-19 13:29:50,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2024-11-19 13:29:50,246 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 13.235294117647058) internal successors, (225), 15 states have internal predecessors, (225), 5 states have call successors, (8), 6 states have call predecessors, (8), 5 states have return successors, (6), 2 states have call predecessors, (6), 5 states have call successors, (6) Word has length 84 [2024-11-19 13:29:50,246 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 13:29:50,256 INFO L225 Difference]: With dead ends: 3780 [2024-11-19 13:29:50,256 INFO L226 Difference]: Without dead ends: 3778 [2024-11-19 13:29:50,257 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 196 GetRequests, 162 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 253 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=376, Invalid=884, Unknown=0, NotChecked=0, Total=1260 [2024-11-19 13:29:50,257 INFO L432 NwaCegarLoop]: 655 mSDtfsCounter, 3691 mSDsluCounter, 6792 mSDsCounter, 0 mSdLazyCounter, 509 mSolverCounterSat, 169 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s 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, 0.5s IncrementalHoareTripleChecker+Time [2024-11-19 13:29:50,257 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3716 Valid, 7447 Invalid, 678 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [169 Valid, 509 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-19 13:29:50,260 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3778 states. [2024-11-19 13:29:50,303 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3778 to 2801. [2024-11-19 13:29:50,306 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) [2024-11-19 13:29:50,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2801 states to 2801 states and 3913 transitions. [2024-11-19 13:29:50,313 INFO L78 Accepts]: Start accepts. Automaton has 2801 states and 3913 transitions. Word has length 84 [2024-11-19 13:29:50,314 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 13:29:50,314 INFO L471 AbstractCegarLoop]: Abstraction has 2801 states and 3913 transitions. [2024-11-19 13:29:50,314 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 13.235294117647058) internal successors, (225), 15 states have internal predecessors, (225), 5 states have call successors, (8), 6 states have call predecessors, (8), 5 states have return successors, (6), 2 states have call predecessors, (6), 5 states have call successors, (6) [2024-11-19 13:29:50,314 INFO L276 IsEmpty]: Start isEmpty. Operand 2801 states and 3913 transitions. [2024-11-19 13:29:50,315 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2024-11-19 13:29:50,315 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 13:29:50,315 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 13:29:50,328 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-19 13:29:50,519 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 13:29:50,520 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-19 13:29:50,520 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 13:29:50,520 INFO L85 PathProgramCache]: Analyzing trace with hash -1558756002, now seen corresponding path program 1 times [2024-11-19 13:29:50,521 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 13:29:50,521 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1954468475] [2024-11-19 13:29:50,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 13:29:50,521 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 13:29:50,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 13:29:50,604 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 13:29:50,605 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 13:29:50,605 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1954468475] [2024-11-19 13:29:50,605 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1954468475] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 13:29:50,605 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 13:29:50,605 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 13:29:50,605 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [757684836] [2024-11-19 13:29:50,605 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 13:29:50,605 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 13:29:50,606 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 13:29:50,606 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 13:29:50,606 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 13:29:50,606 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) [2024-11-19 13:29:50,742 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 13:29:50,743 INFO L93 Difference]: Finished difference Result 5860 states and 8228 transitions. [2024-11-19 13:29:50,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 13:29:50,743 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 82 [2024-11-19 13:29:50,743 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 13:29:50,752 INFO L225 Difference]: With dead ends: 5860 [2024-11-19 13:29:50,752 INFO L226 Difference]: Without dead ends: 3068 [2024-11-19 13:29:50,755 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 13:29:50,755 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 [2024-11-19 13:29:50,756 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] [2024-11-19 13:29:50,758 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3068 states. [2024-11-19 13:29:50,801 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3068 to 2954. [2024-11-19 13:29:50,804 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) [2024-11-19 13:29:50,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2954 states to 2954 states and 4165 transitions. [2024-11-19 13:29:50,811 INFO L78 Accepts]: Start accepts. Automaton has 2954 states and 4165 transitions. Word has length 82 [2024-11-19 13:29:50,811 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 13:29:50,811 INFO L471 AbstractCegarLoop]: Abstraction has 2954 states and 4165 transitions. [2024-11-19 13:29:50,811 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 13:29:50,811 INFO L276 IsEmpty]: Start isEmpty. Operand 2954 states and 4165 transitions. [2024-11-19 13:29:50,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2024-11-19 13:29:50,812 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 13:29:50,812 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 13:29:50,812 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-19 13:29:50,812 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting alt_bzeroErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-19 13:29:50,813 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 13:29:50,813 INFO L85 PathProgramCache]: Analyzing trace with hash -1908045712, now seen corresponding path program 1 times [2024-11-19 13:29:50,813 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 13:29:50,813 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1362176175] [2024-11-19 13:29:50,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 13:29:50,813 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 13:29:50,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 13:29:51,035 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-11-19 13:29:51,035 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 13:29:51,035 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1362176175] [2024-11-19 13:29:51,035 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1362176175] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 13:29:51,035 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1428255212] [2024-11-19 13:29:51,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 13:29:51,036 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 13:29:51,036 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 13:29:51,037 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 13:29:51,038 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-19 13:29:51,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 13:29:51,266 INFO L255 TraceCheckSpWp]: Trace formula consists of 601 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-19 13:29:51,268 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 13:29:51,376 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 7 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 13:29:51,376 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 13:29:51,530 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-11-19 13:29:51,530 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1428255212] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-19 13:29:51,530 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-19 13:29:51,531 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5, 4] total 12 [2024-11-19 13:29:51,531 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1062797763] [2024-11-19 13:29:51,531 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 13:29:51,531 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-19 13:29:51,531 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 13:29:51,532 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-19 13:29:51,532 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=106, Unknown=0, NotChecked=0, Total=156 [2024-11-19 13:29:51,532 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) [2024-11-19 13:29:51,612 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 13:29:51,612 INFO L93 Difference]: Finished difference Result 2954 states and 4165 transitions. [2024-11-19 13:29:51,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 13:29:51,613 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 16.0) internal successors, (80), 6 states have internal predecessors, (80), 2 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 93 [2024-11-19 13:29:51,613 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 13:29:51,620 INFO L225 Difference]: With dead ends: 2954 [2024-11-19 13:29:51,620 INFO L226 Difference]: Without dead ends: 2953 [2024-11-19 13:29:51,621 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 190 GetRequests, 178 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=50, Invalid=106, Unknown=0, NotChecked=0, Total=156 [2024-11-19 13:29:51,621 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, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 13:29:51,622 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1150 Valid, 595 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 13:29:51,624 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2953 states. [2024-11-19 13:29:51,670 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2953 to 2953. [2024-11-19 13:29:51,673 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) [2024-11-19 13:29:51,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2953 states to 2953 states and 4160 transitions. [2024-11-19 13:29:51,679 INFO L78 Accepts]: Start accepts. Automaton has 2953 states and 4160 transitions. Word has length 93 [2024-11-19 13:29:51,679 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 13:29:51,679 INFO L471 AbstractCegarLoop]: Abstraction has 2953 states and 4160 transitions. [2024-11-19 13:29:51,679 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 16.0) internal successors, (80), 6 states have internal predecessors, (80), 2 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-19 13:29:51,679 INFO L276 IsEmpty]: Start isEmpty. Operand 2953 states and 4160 transitions. [2024-11-19 13:29:51,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-11-19 13:29:51,680 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 13:29:51,680 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 13:29:51,693 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-11-19 13:29:51,880 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2024-11-19 13:29:51,881 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting alt_bzeroErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-19 13:29:51,881 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 13:29:51,881 INFO L85 PathProgramCache]: Analyzing trace with hash 980125141, now seen corresponding path program 1 times [2024-11-19 13:29:51,881 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 13:29:51,881 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [867529269] [2024-11-19 13:29:51,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 13:29:51,882 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 13:29:51,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 13:29:52,202 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-11-19 13:29:52,202 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 13:29:52,202 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [867529269] [2024-11-19 13:29:52,203 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [867529269] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 13:29:52,203 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [476119306] [2024-11-19 13:29:52,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 13:29:52,203 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 13:29:52,203 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 13:29:52,206 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 13:29:52,210 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-19 13:29:52,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 13:29:52,462 INFO L255 TraceCheckSpWp]: Trace formula consists of 602 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-19 13:29:52,465 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 13:29:52,556 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 13:29:52,557 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 13:29:52,693 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-11-19 13:29:52,693 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [476119306] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 13:29:52,693 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 13:29:52,693 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4, 5] total 12 [2024-11-19 13:29:52,694 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1158606486] [2024-11-19 13:29:52,694 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 13:29:52,694 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-19 13:29:52,694 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 13:29:52,695 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-19 13:29:52,695 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=100, Unknown=0, NotChecked=0, Total=156 [2024-11-19 13:29:52,695 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) [2024-11-19 13:29:53,184 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 13:29:53,184 INFO L93 Difference]: Finished difference Result 5921 states and 8344 transitions. [2024-11-19 13:29:53,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-19 13:29:53,185 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 19.75) internal successors, (237), 13 states have internal predecessors, (237), 5 states have call successors, (11), 7 states have call predecessors, (11), 6 states have return successors, (9), 5 states have call predecessors, (9), 5 states have call successors, (9) Word has length 94 [2024-11-19 13:29:53,185 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 13:29:53,201 INFO L225 Difference]: With dead ends: 5921 [2024-11-19 13:29:53,202 INFO L226 Difference]: Without dead ends: 5920 [2024-11-19 13:29:53,203 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 205 GetRequests, 185 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 81 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=152, Invalid=268, Unknown=0, NotChecked=0, Total=420 [2024-11-19 13:29:53,204 INFO L432 NwaCegarLoop]: 563 mSDtfsCounter, 1785 mSDsluCounter, 3437 mSDsCounter, 0 mSdLazyCounter, 338 mSolverCounterSat, 113 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s 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, 0.3s IncrementalHoareTripleChecker+Time [2024-11-19 13:29:53,205 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1803 Valid, 4000 Invalid, 451 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [113 Valid, 338 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-19 13:29:53,209 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5920 states. [2024-11-19 13:29:53,345 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5920 to 5482. [2024-11-19 13:29:53,352 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) [2024-11-19 13:29:53,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5482 states to 5482 states and 7723 transitions. [2024-11-19 13:29:53,360 INFO L78 Accepts]: Start accepts. Automaton has 5482 states and 7723 transitions. Word has length 94 [2024-11-19 13:29:53,360 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 13:29:53,360 INFO L471 AbstractCegarLoop]: Abstraction has 5482 states and 7723 transitions. [2024-11-19 13:29:53,360 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 19.75) internal successors, (237), 13 states have internal predecessors, (237), 5 states have call successors, (11), 7 states have call predecessors, (11), 6 states have return successors, (9), 5 states have call predecessors, (9), 5 states have call successors, (9) [2024-11-19 13:29:53,361 INFO L276 IsEmpty]: Start isEmpty. Operand 5482 states and 7723 transitions. [2024-11-19 13:29:53,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2024-11-19 13:29:53,364 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 13:29:53,364 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 13:29:53,377 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-11-19 13:29:53,564 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 13:29:53,565 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-19 13:29:53,565 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 13:29:53,565 INFO L85 PathProgramCache]: Analyzing trace with hash 2083756214, now seen corresponding path program 1 times [2024-11-19 13:29:53,565 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 13:29:53,565 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [545254024] [2024-11-19 13:29:53,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 13:29:53,566 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 13:29:53,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 13:29:53,816 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-19 13:29:53,816 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 13:29:53,816 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [545254024] [2024-11-19 13:29:53,816 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [545254024] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 13:29:53,816 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 13:29:53,816 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 13:29:53,816 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1662356043] [2024-11-19 13:29:53,816 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 13:29:53,817 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 13:29:53,817 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 13:29:53,818 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 13:29:53,818 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-19 13:29:53,818 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) [2024-11-19 13:29:54,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 13:29:54,022 INFO L93 Difference]: Finished difference Result 7738 states and 10970 transitions. [2024-11-19 13:29:54,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-19 13:29:54,022 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 33.333333333333336) internal successors, (100), 4 states have internal predecessors, (100), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 120 [2024-11-19 13:29:54,022 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 13:29:54,049 INFO L225 Difference]: With dead ends: 7738 [2024-11-19 13:29:54,049 INFO L226 Difference]: Without dead ends: 7736 [2024-11-19 13:29:54,051 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-19 13:29:54,052 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 [2024-11-19 13:29:54,052 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] [2024-11-19 13:29:54,056 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7736 states. [2024-11-19 13:29:54,164 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7736 to 5650. [2024-11-19 13:29:54,174 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) [2024-11-19 13:29:54,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5650 states to 5650 states and 7942 transitions. [2024-11-19 13:29:54,184 INFO L78 Accepts]: Start accepts. Automaton has 5650 states and 7942 transitions. Word has length 120 [2024-11-19 13:29:54,184 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 13:29:54,184 INFO L471 AbstractCegarLoop]: Abstraction has 5650 states and 7942 transitions. [2024-11-19 13:29:54,184 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 33.333333333333336) internal successors, (100), 4 states have internal predecessors, (100), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-19 13:29:54,184 INFO L276 IsEmpty]: Start isEmpty. Operand 5650 states and 7942 transitions. [2024-11-19 13:29:54,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2024-11-19 13:29:54,185 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 13:29:54,186 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 13:29:54,186 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-19 13:29:54,186 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-19 13:29:54,186 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 13:29:54,187 INFO L85 PathProgramCache]: Analyzing trace with hash -1429916002, now seen corresponding path program 1 times [2024-11-19 13:29:54,187 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 13:29:54,187 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1037514016] [2024-11-19 13:29:54,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 13:29:54,187 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 13:29:54,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 13:29:54,477 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 6 proven. 7 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-11-19 13:29:54,478 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 13:29:54,478 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1037514016] [2024-11-19 13:29:54,478 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1037514016] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 13:29:54,478 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2016782755] [2024-11-19 13:29:54,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 13:29:54,479 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 13:29:54,479 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 13:29:54,482 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 13:29:54,485 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-19 13:29:54,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 13:29:54,761 INFO L255 TraceCheckSpWp]: Trace formula consists of 795 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-19 13:29:54,769 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 13:29:54,862 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-11-19 13:29:54,862 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 13:29:54,862 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2016782755] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 13:29:54,862 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-19 13:29:54,862 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [7] total 10 [2024-11-19 13:29:54,863 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [779828521] [2024-11-19 13:29:54,863 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 13:29:54,863 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-19 13:29:54,863 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 13:29:54,863 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-19 13:29:54,864 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2024-11-19 13:29:54,864 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) [2024-11-19 13:29:55,097 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 13:29:55,098 INFO L93 Difference]: Finished difference Result 10772 states and 15198 transitions. [2024-11-19 13:29:55,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-19 13:29:55,098 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.142857142857142) internal successors, (113), 5 states have internal predecessors, (113), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) Word has length 127 [2024-11-19 13:29:55,098 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 13:29:55,108 INFO L225 Difference]: With dead ends: 10772 [2024-11-19 13:29:55,108 INFO L226 Difference]: Without dead ends: 5442 [2024-11-19 13:29:55,114 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 137 GetRequests, 126 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=40, Invalid=116, Unknown=0, NotChecked=0, Total=156 [2024-11-19 13:29:55,114 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, 0.1s IncrementalHoareTripleChecker+Time [2024-11-19 13:29:55,114 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [86 Valid, 3343 Invalid, 227 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 212 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-19 13:29:55,117 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5442 states. [2024-11-19 13:29:55,199 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5442 to 5442. [2024-11-19 13:29:55,208 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) [2024-11-19 13:29:55,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5442 states to 5442 states and 7670 transitions. [2024-11-19 13:29:55,291 INFO L78 Accepts]: Start accepts. Automaton has 5442 states and 7670 transitions. Word has length 127 [2024-11-19 13:29:55,292 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 13:29:55,292 INFO L471 AbstractCegarLoop]: Abstraction has 5442 states and 7670 transitions. [2024-11-19 13:29:55,295 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.142857142857142) internal successors, (113), 5 states have internal predecessors, (113), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-19 13:29:55,295 INFO L276 IsEmpty]: Start isEmpty. Operand 5442 states and 7670 transitions. [2024-11-19 13:29:55,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2024-11-19 13:29:55,296 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 13:29:55,296 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 13:29:55,314 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-19 13:29:55,496 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 13:29:55,497 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-19 13:29:55,498 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 13:29:55,498 INFO L85 PathProgramCache]: Analyzing trace with hash 2038802715, now seen corresponding path program 1 times [2024-11-19 13:29:55,498 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 13:29:55,498 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1941299841] [2024-11-19 13:29:55,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 13:29:55,498 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 13:29:55,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 13:29:55,796 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-19 13:29:55,796 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 13:29:55,796 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1941299841] [2024-11-19 13:29:55,797 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1941299841] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 13:29:55,797 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1750942579] [2024-11-19 13:29:55,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 13:29:55,797 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 13:29:55,797 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 13:29:55,802 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 13:29:55,806 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-19 13:29:56,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 13:29:56,104 INFO L255 TraceCheckSpWp]: Trace formula consists of 805 conjuncts, 28 conjuncts are in the unsatisfiable core [2024-11-19 13:29:56,107 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 13:29:56,265 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-19 13:29:56,265 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 13:29:56,265 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1750942579] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 13:29:56,265 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-19 13:29:56,265 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [5] total 10 [2024-11-19 13:29:56,265 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [757513708] [2024-11-19 13:29:56,265 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 13:29:56,266 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-19 13:29:56,266 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 13:29:56,266 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-19 13:29:56,266 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-11-19 13:29:56,267 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) [2024-11-19 13:29:57,572 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 13:29:57,572 INFO L93 Difference]: Finished difference Result 10902 states and 15390 transitions. [2024-11-19 13:29:57,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-19 13:29:57,573 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 7 states have internal predecessors, (111), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 132 [2024-11-19 13:29:57,573 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 13:29:57,584 INFO L225 Difference]: With dead ends: 10902 [2024-11-19 13:29:57,584 INFO L226 Difference]: Without dead ends: 5507 [2024-11-19 13:29:57,592 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 136 GetRequests, 128 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-11-19 13:29:57,593 INFO L432 NwaCegarLoop]: 578 mSDtfsCounter, 15 mSDsluCounter, 2544 mSDsCounter, 0 mSdLazyCounter, 425 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s 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, 1.1s IncrementalHoareTripleChecker+Time [2024-11-19 13:29:57,593 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 3122 Invalid, 428 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 425 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-19 13:29:57,597 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5507 states. [2024-11-19 13:29:57,748 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5507 to 5494. [2024-11-19 13:29:57,754 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) [2024-11-19 13:29:57,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5494 states to 5494 states and 7709 transitions. [2024-11-19 13:29:57,765 INFO L78 Accepts]: Start accepts. Automaton has 5494 states and 7709 transitions. Word has length 132 [2024-11-19 13:29:57,765 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 13:29:57,766 INFO L471 AbstractCegarLoop]: Abstraction has 5494 states and 7709 transitions. [2024-11-19 13:29:57,766 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 7 states have internal predecessors, (111), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-19 13:29:57,766 INFO L276 IsEmpty]: Start isEmpty. Operand 5494 states and 7709 transitions. [2024-11-19 13:29:57,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2024-11-19 13:29:57,767 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 13:29:57,767 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 13:29:57,782 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-11-19 13:29:57,967 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2024-11-19 13:29:57,968 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-19 13:29:57,968 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 13:29:57,969 INFO L85 PathProgramCache]: Analyzing trace with hash 1820581846, now seen corresponding path program 1 times [2024-11-19 13:29:57,969 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 13:29:57,969 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1080487982] [2024-11-19 13:29:57,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 13:29:57,970 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 13:29:58,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 13:29:58,249 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-19 13:29:58,249 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 13:29:58,249 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1080487982] [2024-11-19 13:29:58,249 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1080487982] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 13:29:58,249 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 13:29:58,249 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-19 13:29:58,250 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1090995673] [2024-11-19 13:29:58,251 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 13:29:58,251 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-19 13:29:58,251 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 13:29:58,251 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-19 13:29:58,252 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-19 13:29:58,252 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) [2024-11-19 13:29:58,566 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 13:29:58,566 INFO L93 Difference]: Finished difference Result 10992 states and 15449 transitions. [2024-11-19 13:29:58,567 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-19 13:29:58,567 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.0) internal successors, (112), 7 states have internal predecessors, (112), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 133 [2024-11-19 13:29:58,567 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 13:29:58,577 INFO L225 Difference]: With dead ends: 10992 [2024-11-19 13:29:58,578 INFO L226 Difference]: Without dead ends: 5559 [2024-11-19 13:29:58,584 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-19 13:29:58,584 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, 0.2s IncrementalHoareTripleChecker+Time [2024-11-19 13:29:58,585 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 3154 Invalid, 420 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 419 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-19 13:29:58,589 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5559 states. [2024-11-19 13:29:58,725 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5559 to 5533. [2024-11-19 13:29:58,730 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) [2024-11-19 13:29:58,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5533 states to 5533 states and 7761 transitions. [2024-11-19 13:29:58,738 INFO L78 Accepts]: Start accepts. Automaton has 5533 states and 7761 transitions. Word has length 133 [2024-11-19 13:29:58,739 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 13:29:58,739 INFO L471 AbstractCegarLoop]: Abstraction has 5533 states and 7761 transitions. [2024-11-19 13:29:58,740 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.0) internal successors, (112), 7 states have internal predecessors, (112), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-19 13:29:58,740 INFO L276 IsEmpty]: Start isEmpty. Operand 5533 states and 7761 transitions. [2024-11-19 13:29:58,740 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2024-11-19 13:29:58,741 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 13:29:58,741 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 13:29:58,741 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-19 13:29:58,741 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-19 13:29:58,741 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 13:29:58,742 INFO L85 PathProgramCache]: Analyzing trace with hash 219360999, now seen corresponding path program 1 times [2024-11-19 13:29:58,742 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 13:29:58,742 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2043050639] [2024-11-19 13:29:58,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 13:29:58,742 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 13:29:58,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 13:29:59,092 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-19 13:29:59,092 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 13:29:59,093 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2043050639] [2024-11-19 13:29:59,093 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2043050639] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 13:29:59,093 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 13:29:59,093 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-19 13:29:59,093 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2052346461] [2024-11-19 13:29:59,093 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 13:29:59,093 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-19 13:29:59,093 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 13:29:59,093 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-19 13:29:59,094 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-19 13:29:59,094 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) [2024-11-19 13:29:59,490 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 13:29:59,491 INFO L93 Difference]: Finished difference Result 11254 states and 15815 transitions. [2024-11-19 13:29:59,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-19 13:29:59,491 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.555555555555555) internal successors, (113), 9 states have internal predecessors, (113), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 134 [2024-11-19 13:29:59,491 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 13:29:59,501 INFO L225 Difference]: With dead ends: 11254 [2024-11-19 13:29:59,501 INFO L226 Difference]: Without dead ends: 5780 [2024-11-19 13:29:59,507 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2024-11-19 13:29:59,507 INFO L432 NwaCegarLoop]: 578 mSDtfsCounter, 36 mSDsluCounter, 3664 mSDsCounter, 0 mSdLazyCounter, 539 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s 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, 0.3s IncrementalHoareTripleChecker+Time [2024-11-19 13:29:59,507 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 4242 Invalid, 542 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 539 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-19 13:29:59,512 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5780 states. [2024-11-19 13:29:59,649 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5780 to 5689. [2024-11-19 13:29:59,654 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) [2024-11-19 13:29:59,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5689 states to 5689 states and 7982 transitions. [2024-11-19 13:29:59,661 INFO L78 Accepts]: Start accepts. Automaton has 5689 states and 7982 transitions. Word has length 134 [2024-11-19 13:29:59,662 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 13:29:59,662 INFO L471 AbstractCegarLoop]: Abstraction has 5689 states and 7982 transitions. [2024-11-19 13:29:59,662 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.555555555555555) internal successors, (113), 9 states have internal predecessors, (113), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-19 13:29:59,662 INFO L276 IsEmpty]: Start isEmpty. Operand 5689 states and 7982 transitions. [2024-11-19 13:29:59,663 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2024-11-19 13:29:59,663 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 13:29:59,664 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 13:29:59,664 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-19 13:29:59,664 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-19 13:29:59,664 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 13:29:59,664 INFO L85 PathProgramCache]: Analyzing trace with hash 1436897024, now seen corresponding path program 1 times [2024-11-19 13:29:59,665 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 13:29:59,665 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2030429886] [2024-11-19 13:29:59,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 13:29:59,665 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 13:29:59,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 13:29:59,925 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-19 13:29:59,925 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 13:29:59,926 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2030429886] [2024-11-19 13:29:59,926 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2030429886] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 13:29:59,926 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [580998596] [2024-11-19 13:29:59,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 13:29:59,926 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 13:29:59,926 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 13:29:59,928 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 13:29:59,931 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-19 13:30:00,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 13:30:00,274 INFO L255 TraceCheckSpWp]: Trace formula consists of 807 conjuncts, 33 conjuncts are in the unsatisfiable core [2024-11-19 13:30:00,277 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 13:30:00,281 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-11-19 13:30:00,297 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-11-19 13:30:00,308 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2024-11-19 13:30:00,930 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-19 13:30:00,930 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 13:30:00,930 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [580998596] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 13:30:00,931 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-19 13:30:00,931 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [5] total 14 [2024-11-19 13:30:00,931 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [284418308] [2024-11-19 13:30:00,931 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 13:30:00,931 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-19 13:30:00,931 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 13:30:00,931 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-19 13:30:00,931 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2024-11-19 13:30:00,932 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) [2024-11-19 13:30:02,193 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 13:30:02,193 INFO L93 Difference]: Finished difference Result 13408 states and 18909 transitions. [2024-11-19 13:30:02,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-19 13:30:02,193 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 10.272727272727273) internal successors, (113), 11 states have internal predecessors, (113), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 134 [2024-11-19 13:30:02,194 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 13:30:02,210 INFO L225 Difference]: With dead ends: 13408 [2024-11-19 13:30:02,211 INFO L226 Difference]: Without dead ends: 7777 [2024-11-19 13:30:02,217 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 146 GetRequests, 126 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=101, Invalid=361, Unknown=0, NotChecked=0, Total=462 [2024-11-19 13:30:02,218 INFO L432 NwaCegarLoop]: 577 mSDtfsCounter, 653 mSDsluCounter, 3392 mSDsCounter, 0 mSdLazyCounter, 896 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s 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, 1.0s IncrementalHoareTripleChecker+Time [2024-11-19 13:30:02,218 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [665 Valid, 3969 Invalid, 903 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 896 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-19 13:30:02,222 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7777 states. [2024-11-19 13:30:02,318 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7777 to 5677. [2024-11-19 13:30:02,322 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) [2024-11-19 13:30:02,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5677 states to 5677 states and 7964 transitions. [2024-11-19 13:30:02,331 INFO L78 Accepts]: Start accepts. Automaton has 5677 states and 7964 transitions. Word has length 134 [2024-11-19 13:30:02,331 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 13:30:02,331 INFO L471 AbstractCegarLoop]: Abstraction has 5677 states and 7964 transitions. [2024-11-19 13:30:02,331 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 10.272727272727273) internal successors, (113), 11 states have internal predecessors, (113), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-19 13:30:02,331 INFO L276 IsEmpty]: Start isEmpty. Operand 5677 states and 7964 transitions. [2024-11-19 13:30:02,332 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2024-11-19 13:30:02,332 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 13:30:02,332 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 13:30:02,347 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2024-11-19 13:30:02,533 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 [2024-11-19 13:30:02,533 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-19 13:30:02,534 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 13:30:02,534 INFO L85 PathProgramCache]: Analyzing trace with hash 786605260, now seen corresponding path program 1 times [2024-11-19 13:30:02,534 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 13:30:02,534 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1400201095] [2024-11-19 13:30:02,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 13:30:02,534 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 13:30:02,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 13:30:02,807 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-19 13:30:02,807 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 13:30:02,807 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1400201095] [2024-11-19 13:30:02,807 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1400201095] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 13:30:02,809 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 13:30:02,809 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-19 13:30:02,810 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1296472159] [2024-11-19 13:30:02,810 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 13:30:02,811 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-19 13:30:02,811 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 13:30:02,811 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-19 13:30:02,811 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-19 13:30:02,812 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) [2024-11-19 13:30:03,218 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 13:30:03,219 INFO L93 Difference]: Finished difference Result 11505 states and 16149 transitions. [2024-11-19 13:30:03,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-19 13:30:03,219 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.777777777777779) internal successors, (115), 9 states have internal predecessors, (115), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 136 [2024-11-19 13:30:03,219 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 13:30:03,231 INFO L225 Difference]: With dead ends: 11505 [2024-11-19 13:30:03,231 INFO L226 Difference]: Without dead ends: 5885 [2024-11-19 13:30:03,238 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-19 13:30:03,239 INFO L432 NwaCegarLoop]: 577 mSDtfsCounter, 21 mSDsluCounter, 3669 mSDsCounter, 0 mSdLazyCounter, 493 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s 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, 0.2s IncrementalHoareTripleChecker+Time [2024-11-19 13:30:03,239 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 4246 Invalid, 495 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 493 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-19 13:30:03,242 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5885 states. [2024-11-19 13:30:03,379 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5885 to 5759. [2024-11-19 13:30:03,384 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) [2024-11-19 13:30:03,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5759 states to 5759 states and 8073 transitions. [2024-11-19 13:30:03,411 INFO L78 Accepts]: Start accepts. Automaton has 5759 states and 8073 transitions. Word has length 136 [2024-11-19 13:30:03,415 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 13:30:03,415 INFO L471 AbstractCegarLoop]: Abstraction has 5759 states and 8073 transitions. [2024-11-19 13:30:03,415 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.777777777777779) internal successors, (115), 9 states have internal predecessors, (115), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-19 13:30:03,415 INFO L276 IsEmpty]: Start isEmpty. Operand 5759 states and 8073 transitions. [2024-11-19 13:30:03,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2024-11-19 13:30:03,420 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 13:30:03,420 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 13:30:03,420 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-19 13:30:03,420 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-19 13:30:03,421 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 13:30:03,421 INFO L85 PathProgramCache]: Analyzing trace with hash 1418064185, now seen corresponding path program 1 times [2024-11-19 13:30:03,421 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 13:30:03,421 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1091233903] [2024-11-19 13:30:03,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 13:30:03,421 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 13:30:03,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 13:30:03,769 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-19 13:30:03,769 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 13:30:03,770 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1091233903] [2024-11-19 13:30:03,770 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1091233903] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 13:30:03,770 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [328993015] [2024-11-19 13:30:03,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 13:30:03,770 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 13:30:03,770 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 13:30:03,774 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 13:30:03,775 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-19 13:30:04,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 13:30:04,121 INFO L255 TraceCheckSpWp]: Trace formula consists of 807 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-19 13:30:04,124 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 13:30:04,191 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-19 13:30:04,192 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 13:30:04,193 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [328993015] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 13:30:04,193 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-19 13:30:04,193 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [5] total 10 [2024-11-19 13:30:04,193 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [868061817] [2024-11-19 13:30:04,193 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 13:30:04,193 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-19 13:30:04,193 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 13:30:04,194 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-19 13:30:04,194 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-11-19 13:30:04,194 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) [2024-11-19 13:30:04,462 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 13:30:04,462 INFO L93 Difference]: Finished difference Result 11530 states and 16179 transitions. [2024-11-19 13:30:04,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-19 13:30:04,463 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.571428571428573) internal successors, (116), 7 states have internal predecessors, (116), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 137 [2024-11-19 13:30:04,463 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 13:30:04,474 INFO L225 Difference]: With dead ends: 11530 [2024-11-19 13:30:04,474 INFO L226 Difference]: Without dead ends: 5850 [2024-11-19 13:30:04,480 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 143 GetRequests, 133 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2024-11-19 13:30:04,481 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, 0.2s IncrementalHoareTripleChecker+Time [2024-11-19 13:30:04,482 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 3166 Invalid, 359 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 355 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-19 13:30:04,487 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5850 states. [2024-11-19 13:30:04,573 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5850 to 5785. [2024-11-19 13:30:04,577 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) [2024-11-19 13:30:04,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5785 states to 5785 states and 8099 transitions. [2024-11-19 13:30:04,586 INFO L78 Accepts]: Start accepts. Automaton has 5785 states and 8099 transitions. Word has length 137 [2024-11-19 13:30:04,586 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 13:30:04,586 INFO L471 AbstractCegarLoop]: Abstraction has 5785 states and 8099 transitions. [2024-11-19 13:30:04,586 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.571428571428573) internal successors, (116), 7 states have internal predecessors, (116), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-19 13:30:04,586 INFO L276 IsEmpty]: Start isEmpty. Operand 5785 states and 8099 transitions. [2024-11-19 13:30:04,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2024-11-19 13:30:04,587 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 13:30:04,587 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 13:30:04,602 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-11-19 13:30:04,787 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 13:30:04,788 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-19 13:30:04,789 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 13:30:04,789 INFO L85 PathProgramCache]: Analyzing trace with hash -1659367086, now seen corresponding path program 1 times [2024-11-19 13:30:04,789 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 13:30:04,789 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1228667082] [2024-11-19 13:30:04,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 13:30:04,789 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 13:30:04,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 13:30:05,100 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-19 13:30:05,101 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 13:30:05,101 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1228667082] [2024-11-19 13:30:05,101 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1228667082] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 13:30:05,101 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [679120029] [2024-11-19 13:30:05,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 13:30:05,101 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 13:30:05,102 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 13:30:05,105 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 13:30:05,112 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-11-19 13:30:05,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 13:30:05,489 INFO L255 TraceCheckSpWp]: Trace formula consists of 807 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-11-19 13:30:05,492 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 13:30:05,560 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 13:30:05,560 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 13:30:05,560 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [679120029] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 13:30:05,560 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-19 13:30:05,560 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [5] total 11 [2024-11-19 13:30:05,560 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1456638316] [2024-11-19 13:30:05,561 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 13:30:05,561 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-19 13:30:05,561 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 13:30:05,561 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-19 13:30:05,561 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2024-11-19 13:30:05,562 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) [2024-11-19 13:30:05,755 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 13:30:05,755 INFO L93 Difference]: Finished difference Result 8815 states and 12310 transitions. [2024-11-19 13:30:05,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-19 13:30:05,756 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 14.11111111111111) internal successors, (127), 9 states have internal predecessors, (127), 3 states have call successors, (5), 2 states have call predecessors, (5), 4 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) Word has length 137 [2024-11-19 13:30:05,756 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 13:30:05,763 INFO L225 Difference]: With dead ends: 8815 [2024-11-19 13:30:05,763 INFO L226 Difference]: Without dead ends: 3134 [2024-11-19 13:30:05,770 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 143 GetRequests, 132 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2024-11-19 13:30:05,770 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 [2024-11-19 13:30:05,770 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] [2024-11-19 13:30:05,772 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3134 states. [2024-11-19 13:30:05,832 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3134 to 3132. [2024-11-19 13:30:05,834 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) [2024-11-19 13:30:05,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3132 states to 3132 states and 4313 transitions. [2024-11-19 13:30:05,840 INFO L78 Accepts]: Start accepts. Automaton has 3132 states and 4313 transitions. Word has length 137 [2024-11-19 13:30:05,840 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 13:30:05,840 INFO L471 AbstractCegarLoop]: Abstraction has 3132 states and 4313 transitions. [2024-11-19 13:30:05,840 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 14.11111111111111) internal successors, (127), 9 states have internal predecessors, (127), 3 states have call successors, (5), 2 states have call predecessors, (5), 4 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2024-11-19 13:30:05,840 INFO L276 IsEmpty]: Start isEmpty. Operand 3132 states and 4313 transitions. [2024-11-19 13:30:05,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2024-11-19 13:30:05,841 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 13:30:05,842 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 13:30:05,857 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2024-11-19 13:30:06,042 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2024-11-19 13:30:06,043 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-19 13:30:06,043 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 13:30:06,043 INFO L85 PathProgramCache]: Analyzing trace with hash -109109404, now seen corresponding path program 1 times [2024-11-19 13:30:06,043 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 13:30:06,043 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [32864294] [2024-11-19 13:30:06,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 13:30:06,043 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 13:30:06,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 13:30:06,429 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 6 proven. 10 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-11-19 13:30:06,429 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 13:30:06,430 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [32864294] [2024-11-19 13:30:06,430 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [32864294] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 13:30:06,430 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1268131581] [2024-11-19 13:30:06,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 13:30:06,430 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 13:30:06,430 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 13:30:06,431 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 13:30:06,432 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-11-19 13:30:06,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 13:30:06,854 INFO L255 TraceCheckSpWp]: Trace formula consists of 837 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-11-19 13:30:06,856 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 13:30:06,932 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 23 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-19 13:30:06,932 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 13:30:07,044 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 6 proven. 10 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-11-19 13:30:07,044 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1268131581] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 13:30:07,044 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 13:30:07,044 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 10, 6] total 17 [2024-11-19 13:30:07,044 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1973777602] [2024-11-19 13:30:07,044 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 13:30:07,045 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-11-19 13:30:07,045 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 13:30:07,045 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-11-19 13:30:07,046 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=220, Unknown=0, NotChecked=0, Total=272 [2024-11-19 13:30:07,046 INFO L87 Difference]: Start difference. First operand 3132 states and 4313 transitions. Second operand has 17 states, 17 states have (on average 9.294117647058824) internal successors, (158), 17 states have internal predecessors, (158), 3 states have call successors, (8), 2 states have call predecessors, (8), 7 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2024-11-19 13:30:07,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 13:30:07,351 INFO L93 Difference]: Finished difference Result 6213 states and 8581 transitions. [2024-11-19 13:30:07,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-19 13:30:07,351 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 9.294117647058824) internal successors, (158), 17 states have internal predecessors, (158), 3 states have call successors, (8), 2 states have call predecessors, (8), 7 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 139 [2024-11-19 13:30:07,352 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 13:30:07,360 INFO L225 Difference]: With dead ends: 6213 [2024-11-19 13:30:07,360 INFO L226 Difference]: Without dead ends: 3194 [2024-11-19 13:30:07,363 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 292 GetRequests, 269 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=114, Invalid=486, Unknown=0, NotChecked=0, Total=600 [2024-11-19 13:30:07,364 INFO L432 NwaCegarLoop]: 586 mSDtfsCounter, 33 mSDsluCounter, 4082 mSDsCounter, 0 mSdLazyCounter, 230 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 4668 SdHoareTripleChecker+Invalid, 246 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 230 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-19 13:30:07,364 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 4668 Invalid, 246 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 230 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-19 13:30:07,365 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3194 states. [2024-11-19 13:30:07,418 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3194 to 3172. [2024-11-19 13:30:07,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3172 states, 3033 states have (on average 1.3798219584569733) internal successors, (4185), 3046 states have internal predecessors, (4185), 86 states have call successors, (86), 46 states have call predecessors, (86), 40 states have return successors, (93), 79 states have call predecessors, (93), 86 states have call successors, (93) [2024-11-19 13:30:07,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3172 states to 3172 states and 4364 transitions. [2024-11-19 13:30:07,429 INFO L78 Accepts]: Start accepts. Automaton has 3172 states and 4364 transitions. Word has length 139 [2024-11-19 13:30:07,429 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 13:30:07,429 INFO L471 AbstractCegarLoop]: Abstraction has 3172 states and 4364 transitions. [2024-11-19 13:30:07,429 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 9.294117647058824) internal successors, (158), 17 states have internal predecessors, (158), 3 states have call successors, (8), 2 states have call predecessors, (8), 7 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2024-11-19 13:30:07,430 INFO L276 IsEmpty]: Start isEmpty. Operand 3172 states and 4364 transitions. [2024-11-19 13:30:07,430 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2024-11-19 13:30:07,431 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 13:30:07,431 INFO L215 NwaCegarLoop]: trace histogram [6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 13:30:07,446 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2024-11-19 13:30:07,634 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2024-11-19 13:30:07,635 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)] === [2024-11-19 13:30:07,635 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 13:30:07,636 INFO L85 PathProgramCache]: Analyzing trace with hash -544423374, now seen corresponding path program 2 times [2024-11-19 13:30:07,636 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 13:30:07,636 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [519326996] [2024-11-19 13:30:07,636 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-19 13:30:07,636 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 13:30:07,779 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-19 13:30:07,779 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 13:30:08,167 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 6 proven. 30 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-19 13:30:08,167 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 13:30:08,167 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [519326996] [2024-11-19 13:30:08,167 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [519326996] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 13:30:08,168 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [531594182] [2024-11-19 13:30:08,168 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-19 13:30:08,168 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 13:30:08,168 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 13:30:08,171 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 13:30:08,182 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-11-19 13:30:08,497 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-19 13:30:08,497 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 13:30:08,498 INFO L255 TraceCheckSpWp]: Trace formula consists of 120 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-19 13:30:08,501 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 13:30:08,512 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2024-11-19 13:30:08,521 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2024-11-19 13:30:08,521 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 13:30:08,521 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [531594182] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 13:30:08,521 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-19 13:30:08,522 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [9] total 10 [2024-11-19 13:30:08,522 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [158180988] [2024-11-19 13:30:08,522 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 13:30:08,522 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 13:30:08,522 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 13:30:08,523 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 13:30:08,523 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2024-11-19 13:30:08,523 INFO L87 Difference]: Start difference. First operand 3172 states and 4364 transitions. Second operand has 3 states, 2 states have (on average 56.5) internal successors, (113), 3 states have internal predecessors, (113), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-19 13:30:08,568 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 13:30:08,568 INFO L93 Difference]: Finished difference Result 3172 states and 4364 transitions. [2024-11-19 13:30:08,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 13:30:08,569 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 56.5) internal successors, (113), 3 states have internal predecessors, (113), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 143 [2024-11-19 13:30:08,569 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 13:30:08,575 INFO L225 Difference]: With dead ends: 3172 [2024-11-19 13:30:08,575 INFO L226 Difference]: Without dead ends: 3171 [2024-11-19 13:30:08,581 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 151 GetRequests, 143 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2024-11-19 13:30:08,582 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 [2024-11-19 13:30:08,582 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] [2024-11-19 13:30:08,583 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3171 states. [2024-11-19 13:30:08,632 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3171 to 3171. [2024-11-19 13:30:08,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3171 states, 3033 states have (on average 1.37784371909001) internal successors, (4179), 3045 states have internal predecessors, (4179), 86 states have call successors, (86), 46 states have call predecessors, (86), 40 states have return successors, (93), 79 states have call predecessors, (93), 86 states have call successors, (93) [2024-11-19 13:30:08,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3171 states to 3171 states and 4358 transitions. [2024-11-19 13:30:08,639 INFO L78 Accepts]: Start accepts. Automaton has 3171 states and 4358 transitions. Word has length 143 [2024-11-19 13:30:08,639 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 13:30:08,639 INFO L471 AbstractCegarLoop]: Abstraction has 3171 states and 4358 transitions. [2024-11-19 13:30:08,639 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 56.5) internal successors, (113), 3 states have internal predecessors, (113), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-19 13:30:08,639 INFO L276 IsEmpty]: Start isEmpty. Operand 3171 states and 4358 transitions. [2024-11-19 13:30:08,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2024-11-19 13:30:08,640 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 13:30:08,640 INFO L215 NwaCegarLoop]: trace histogram [6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 13:30:08,653 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2024-11-19 13:30:08,842 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2024-11-19 13:30:08,842 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-19 13:30:08,843 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 13:30:08,843 INFO L85 PathProgramCache]: Analyzing trace with hash 302744693, now seen corresponding path program 1 times [2024-11-19 13:30:08,843 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 13:30:08,843 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1923303087] [2024-11-19 13:30:08,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 13:30:08,843 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 13:30:09,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 13:30:09,327 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 7 proven. 30 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-19 13:30:09,327 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 13:30:09,327 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1923303087] [2024-11-19 13:30:09,327 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1923303087] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 13:30:09,327 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [551621608] [2024-11-19 13:30:09,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 13:30:09,328 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 13:30:09,328 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 13:30:09,329 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 13:30:09,330 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-11-19 13:30:09,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 13:30:09,721 INFO L255 TraceCheckSpWp]: Trace formula consists of 898 conjuncts, 29 conjuncts are in the unsatisfiable core [2024-11-19 13:30:09,723 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 13:30:09,878 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 35 proven. 10 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-19 13:30:09,878 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 13:30:10,079 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 7 proven. 30 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-19 13:30:10,080 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [551621608] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 13:30:10,080 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 13:30:10,080 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 14, 9] total 27 [2024-11-19 13:30:10,080 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1490300720] [2024-11-19 13:30:10,080 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 13:30:10,080 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2024-11-19 13:30:10,080 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 13:30:10,081 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2024-11-19 13:30:10,081 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=126, Invalid=576, Unknown=0, NotChecked=0, Total=702 [2024-11-19 13:30:10,081 INFO L87 Difference]: Start difference. First operand 3171 states and 4358 transitions. Second operand has 27 states, 27 states have (on average 6.296296296296297) internal successors, (170), 27 states have internal predecessors, (170), 3 states have call successors, (8), 2 states have call predecessors, (8), 7 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2024-11-19 13:30:11,002 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 13:30:11,006 INFO L93 Difference]: Finished difference Result 6320 states and 8723 transitions. [2024-11-19 13:30:11,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2024-11-19 13:30:11,010 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 27 states have (on average 6.296296296296297) internal successors, (170), 27 states have internal predecessors, (170), 3 states have call successors, (8), 2 states have call predecessors, (8), 7 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 144 [2024-11-19 13:30:11,010 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 13:30:11,026 INFO L225 Difference]: With dead ends: 6320 [2024-11-19 13:30:11,027 INFO L226 Difference]: Without dead ends: 3247 [2024-11-19 13:30:11,034 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 314 GetRequests, 272 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 182 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=380, Invalid=1512, Unknown=0, NotChecked=0, Total=1892 [2024-11-19 13:30:11,035 INFO L432 NwaCegarLoop]: 573 mSDtfsCounter, 70 mSDsluCounter, 7961 mSDsCounter, 0 mSdLazyCounter, 750 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 8534 SdHoareTripleChecker+Invalid, 778 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 750 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-19 13:30:11,035 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [70 Valid, 8534 Invalid, 778 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 750 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-19 13:30:11,037 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3247 states. [2024-11-19 13:30:11,101 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3247 to 3216. [2024-11-19 13:30:11,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3216 states, 3078 states have (on average 1.3732943469785575) internal successors, (4227), 3090 states have internal predecessors, (4227), 86 states have call successors, (86), 46 states have call predecessors, (86), 40 states have return successors, (93), 79 states have call predecessors, (93), 86 states have call successors, (93) [2024-11-19 13:30:11,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3216 states to 3216 states and 4406 transitions. [2024-11-19 13:30:11,109 INFO L78 Accepts]: Start accepts. Automaton has 3216 states and 4406 transitions. Word has length 144 [2024-11-19 13:30:11,109 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 13:30:11,110 INFO L471 AbstractCegarLoop]: Abstraction has 3216 states and 4406 transitions. [2024-11-19 13:30:11,110 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 27 states have (on average 6.296296296296297) internal successors, (170), 27 states have internal predecessors, (170), 3 states have call successors, (8), 2 states have call predecessors, (8), 7 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2024-11-19 13:30:11,110 INFO L276 IsEmpty]: Start isEmpty. Operand 3216 states and 4406 transitions. [2024-11-19 13:30:11,111 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2024-11-19 13:30:11,111 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 13:30:11,111 INFO L215 NwaCegarLoop]: trace histogram [15, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 13:30:11,126 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2024-11-19 13:30:11,315 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 13:30:11,316 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-19 13:30:11,316 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 13:30:11,316 INFO L85 PathProgramCache]: Analyzing trace with hash 810593628, now seen corresponding path program 2 times [2024-11-19 13:30:11,317 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 13:30:11,317 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1348632612] [2024-11-19 13:30:11,317 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-19 13:30:11,317 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 13:30:11,527 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-19 13:30:11,527 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 13:30:12,206 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 7 proven. 126 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2024-11-19 13:30:12,207 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 13:30:12,207 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1348632612] [2024-11-19 13:30:12,207 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1348632612] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 13:30:12,207 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [140425059] [2024-11-19 13:30:12,208 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-19 13:30:12,208 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 13:30:12,208 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 13:30:12,210 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 13:30:12,211 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2024-11-19 13:30:12,728 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-19 13:30:12,728 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 13:30:12,734 INFO L255 TraceCheckSpWp]: Trace formula consists of 1033 conjuncts, 56 conjuncts are in the unsatisfiable core [2024-11-19 13:30:12,738 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 13:30:13,098 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 8 proven. 127 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2024-11-19 13:30:13,098 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 13:30:13,560 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 78 proven. 15 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2024-11-19 13:30:13,563 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [140425059] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 13:30:13,563 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 13:30:13,563 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 16, 10] total 36 [2024-11-19 13:30:13,563 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [190738482] [2024-11-19 13:30:13,563 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 13:30:13,564 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2024-11-19 13:30:13,566 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 13:30:13,567 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2024-11-19 13:30:13,567 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=215, Invalid=1045, Unknown=0, NotChecked=0, Total=1260 [2024-11-19 13:30:13,567 INFO L87 Difference]: Start difference. First operand 3216 states and 4406 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) [2024-11-19 13:30:15,553 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 13:30:15,553 INFO L93 Difference]: Finished difference Result 6447 states and 8895 transitions. [2024-11-19 13:30:15,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2024-11-19 13:30:15,554 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 153 [2024-11-19 13:30:15,554 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 13:30:15,562 INFO L225 Difference]: With dead ends: 6447 [2024-11-19 13:30:15,562 INFO L226 Difference]: Without dead ends: 3338 [2024-11-19 13:30:15,567 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 360 GetRequests, 288 SyntacticMatches, 0 SemanticMatches, 72 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 953 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=850, Invalid=4552, Unknown=0, NotChecked=0, Total=5402 [2024-11-19 13:30:15,568 INFO L432 NwaCegarLoop]: 585 mSDtfsCounter, 37 mSDsluCounter, 11594 mSDsCounter, 0 mSdLazyCounter, 830 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 12179 SdHoareTripleChecker+Invalid, 850 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 830 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-19 13:30:15,568 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [37 Valid, 12179 Invalid, 850 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 830 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-19 13:30:15,570 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3338 states. [2024-11-19 13:30:15,647 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3338 to 3278. [2024-11-19 13:30:15,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3278 states, 3140 states have (on average 1.3691082802547772) internal successors, (4299), 3151 states have internal predecessors, (4299), 86 states have call successors, (86), 47 states have call predecessors, (86), 40 states have return successors, (93), 79 states have call predecessors, (93), 86 states have call successors, (93) [2024-11-19 13:30:15,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3278 states to 3278 states and 4478 transitions. [2024-11-19 13:30:15,660 INFO L78 Accepts]: Start accepts. Automaton has 3278 states and 4478 transitions. Word has length 153 [2024-11-19 13:30:15,661 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 13:30:15,661 INFO L471 AbstractCegarLoop]: Abstraction has 3278 states and 4478 transitions. [2024-11-19 13:30:15,661 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) [2024-11-19 13:30:15,661 INFO L276 IsEmpty]: Start isEmpty. Operand 3278 states and 4478 transitions. [2024-11-19 13:30:15,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2024-11-19 13:30:15,662 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 13:30:15,662 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] [2024-11-19 13:30:15,679 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2024-11-19 13:30:15,866 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24,16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 13:30:15,867 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-19 13:30:15,867 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 13:30:15,869 INFO L85 PathProgramCache]: Analyzing trace with hash -201476061, now seen corresponding path program 3 times [2024-11-19 13:30:15,869 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 13:30:15,869 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [815780048] [2024-11-19 13:30:15,869 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-19 13:30:15,869 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 13:30:15,941 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-11-19 13:30:15,942 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 13:30:16,126 INFO L134 CoverageAnalysis]: Checked inductivity of 455 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 448 trivial. 0 not checked. [2024-11-19 13:30:16,126 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 13:30:16,126 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [815780048] [2024-11-19 13:30:16,126 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [815780048] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 13:30:16,126 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 13:30:16,126 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-19 13:30:16,126 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1554200358] [2024-11-19 13:30:16,126 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 13:30:16,127 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-19 13:30:16,127 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 13:30:16,127 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-19 13:30:16,127 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-19 13:30:16,127 INFO L87 Difference]: Start difference. First operand 3278 states and 4478 transitions. Second operand has 7 states, 7 states have (on average 16.857142857142858) internal successors, (118), 7 states have internal predecessors, (118), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-19 13:30:16,457 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 13:30:16,457 INFO L93 Difference]: Finished difference Result 6521 states and 8933 transitions. [2024-11-19 13:30:16,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-19 13:30:16,459 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.857142857142858) internal successors, (118), 7 states have internal predecessors, (118), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 166 [2024-11-19 13:30:16,459 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 13:30:16,467 INFO L225 Difference]: With dead ends: 6521 [2024-11-19 13:30:16,467 INFO L226 Difference]: Without dead ends: 3317 [2024-11-19 13:30:16,470 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-19 13:30:16,470 INFO L432 NwaCegarLoop]: 582 mSDtfsCounter, 8 mSDsluCounter, 2549 mSDsCounter, 0 mSdLazyCounter, 426 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 3131 SdHoareTripleChecker+Invalid, 427 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 426 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-19 13:30:16,472 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 3131 Invalid, 427 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 426 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-19 13:30:16,473 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3317 states. [2024-11-19 13:30:16,550 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3317 to 3317. [2024-11-19 13:30:16,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3317 states, 3179 states have (on average 1.364580056621579) internal successors, (4338), 3190 states have internal predecessors, (4338), 86 states have call successors, (86), 47 states have call predecessors, (86), 40 states have return successors, (93), 79 states have call predecessors, (93), 86 states have call successors, (93) [2024-11-19 13:30:16,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3317 states to 3317 states and 4517 transitions. [2024-11-19 13:30:16,558 INFO L78 Accepts]: Start accepts. Automaton has 3317 states and 4517 transitions. Word has length 166 [2024-11-19 13:30:16,558 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 13:30:16,558 INFO L471 AbstractCegarLoop]: Abstraction has 3317 states and 4517 transitions. [2024-11-19 13:30:16,559 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.857142857142858) internal successors, (118), 7 states have internal predecessors, (118), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-19 13:30:16,559 INFO L276 IsEmpty]: Start isEmpty. Operand 3317 states and 4517 transitions. [2024-11-19 13:30:16,559 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2024-11-19 13:30:16,560 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 13:30:16,560 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] [2024-11-19 13:30:16,560 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-11-19 13:30:16,560 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-19 13:30:16,560 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 13:30:16,560 INFO L85 PathProgramCache]: Analyzing trace with hash 271233333, now seen corresponding path program 1 times [2024-11-19 13:30:16,560 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 13:30:16,560 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1897257599] [2024-11-19 13:30:16,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 13:30:16,561 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 13:30:16,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 13:30:16,953 INFO L134 CoverageAnalysis]: Checked inductivity of 455 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 448 trivial. 0 not checked. [2024-11-19 13:30:16,953 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 13:30:16,953 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1897257599] [2024-11-19 13:30:16,953 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1897257599] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 13:30:16,953 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 13:30:16,953 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-19 13:30:16,953 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2142297127] [2024-11-19 13:30:16,953 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 13:30:16,953 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-19 13:30:16,953 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 13:30:16,954 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-19 13:30:16,954 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-19 13:30:16,954 INFO L87 Difference]: Start difference. First operand 3317 states and 4517 transitions. Second operand has 6 states, 6 states have (on average 19.666666666666668) internal successors, (118), 6 states have internal predecessors, (118), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-19 13:30:17,168 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 13:30:17,168 INFO L93 Difference]: Finished difference Result 6560 states and 8945 transitions. [2024-11-19 13:30:17,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-19 13:30:17,169 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 19.666666666666668) internal successors, (118), 6 states have internal predecessors, (118), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 166 [2024-11-19 13:30:17,169 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 13:30:17,179 INFO L225 Difference]: With dead ends: 6560 [2024-11-19 13:30:17,179 INFO L226 Difference]: Without dead ends: 3317 [2024-11-19 13:30:17,183 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-19 13:30:17,183 INFO L432 NwaCegarLoop]: 587 mSDtfsCounter, 8 mSDsluCounter, 1560 mSDsCounter, 0 mSdLazyCounter, 238 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 2147 SdHoareTripleChecker+Invalid, 238 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 238 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-19 13:30:17,183 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 2147 Invalid, 238 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 238 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-19 13:30:17,185 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3317 states. [2024-11-19 13:30:17,262 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3317 to 3317. [2024-11-19 13:30:17,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3317 states, 3179 states have (on average 1.362378106322743) internal successors, (4331), 3190 states have internal predecessors, (4331), 86 states have call successors, (86), 47 states have call predecessors, (86), 40 states have return successors, (93), 79 states have call predecessors, (93), 86 states have call successors, (93) [2024-11-19 13:30:17,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3317 states to 3317 states and 4510 transitions. [2024-11-19 13:30:17,270 INFO L78 Accepts]: Start accepts. Automaton has 3317 states and 4510 transitions. Word has length 166 [2024-11-19 13:30:17,270 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 13:30:17,271 INFO L471 AbstractCegarLoop]: Abstraction has 3317 states and 4510 transitions. [2024-11-19 13:30:17,271 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 19.666666666666668) internal successors, (118), 6 states have internal predecessors, (118), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-19 13:30:17,271 INFO L276 IsEmpty]: Start isEmpty. Operand 3317 states and 4510 transitions. [2024-11-19 13:30:17,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2024-11-19 13:30:17,272 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 13:30:17,272 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] [2024-11-19 13:30:17,272 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-11-19 13:30:17,272 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-19 13:30:17,272 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 13:30:17,272 INFO L85 PathProgramCache]: Analyzing trace with hash -2074116296, now seen corresponding path program 1 times [2024-11-19 13:30:17,273 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 13:30:17,273 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1640340496] [2024-11-19 13:30:17,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 13:30:17,273 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 13:30:17,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 13:30:17,744 INFO L134 CoverageAnalysis]: Checked inductivity of 455 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 448 trivial. 0 not checked. [2024-11-19 13:30:17,745 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 13:30:17,745 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1640340496] [2024-11-19 13:30:17,745 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1640340496] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 13:30:17,745 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 13:30:17,745 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-19 13:30:17,745 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [810435875] [2024-11-19 13:30:17,745 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 13:30:17,746 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-19 13:30:17,746 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 13:30:17,746 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-19 13:30:17,746 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2024-11-19 13:30:17,746 INFO L87 Difference]: Start difference. First operand 3317 states and 4510 transitions. Second operand has 10 states, 10 states have (on average 11.8) internal successors, (118), 10 states have internal predecessors, (118), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-19 13:30:18,168 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 13:30:18,169 INFO L93 Difference]: Finished difference Result 6642 states and 9053 transitions. [2024-11-19 13:30:18,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-19 13:30:18,169 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 11.8) internal successors, (118), 10 states have internal predecessors, (118), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 166 [2024-11-19 13:30:18,169 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 13:30:18,176 INFO L225 Difference]: With dead ends: 6642 [2024-11-19 13:30:18,176 INFO L226 Difference]: Without dead ends: 3404 [2024-11-19 13:30:18,179 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2024-11-19 13:30:18,179 INFO L432 NwaCegarLoop]: 589 mSDtfsCounter, 23 mSDsluCounter, 4171 mSDsCounter, 0 mSdLazyCounter, 738 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 4760 SdHoareTripleChecker+Invalid, 739 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 738 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-19 13:30:18,179 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 4760 Invalid, 739 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 738 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-19 13:30:18,180 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3404 states. [2024-11-19 13:30:18,313 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3404 to 3362. [2024-11-19 13:30:18,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3362 states, 3224 states have (on average 1.3591811414392059) internal successors, (4382), 3235 states have internal predecessors, (4382), 86 states have call successors, (86), 47 states have call predecessors, (86), 40 states have return successors, (93), 79 states have call predecessors, (93), 86 states have call successors, (93) [2024-11-19 13:30:18,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3362 states to 3362 states and 4561 transitions. [2024-11-19 13:30:18,320 INFO L78 Accepts]: Start accepts. Automaton has 3362 states and 4561 transitions. Word has length 166 [2024-11-19 13:30:18,320 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 13:30:18,321 INFO L471 AbstractCegarLoop]: Abstraction has 3362 states and 4561 transitions. [2024-11-19 13:30:18,321 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 11.8) internal successors, (118), 10 states have internal predecessors, (118), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-19 13:30:18,321 INFO L276 IsEmpty]: Start isEmpty. Operand 3362 states and 4561 transitions. [2024-11-19 13:30:18,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2024-11-19 13:30:18,322 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 13:30:18,322 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] [2024-11-19 13:30:18,322 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-11-19 13:30:18,322 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-19 13:30:18,322 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 13:30:18,322 INFO L85 PathProgramCache]: Analyzing trace with hash -115457822, now seen corresponding path program 1 times [2024-11-19 13:30:18,323 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 13:30:18,323 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [743316363] [2024-11-19 13:30:18,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 13:30:18,323 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 13:30:18,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 13:30:19,139 INFO L134 CoverageAnalysis]: Checked inductivity of 455 backedges. 7 proven. 287 refuted. 0 times theorem prover too weak. 161 trivial. 0 not checked. [2024-11-19 13:30:19,140 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 13:30:19,140 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [743316363] [2024-11-19 13:30:19,140 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [743316363] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 13:30:19,140 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1584750052] [2024-11-19 13:30:19,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 13:30:19,140 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 13:30:19,140 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 13:30:19,142 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 13:30:19,143 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2024-11-19 13:30:19,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 13:30:19,831 INFO L255 TraceCheckSpWp]: Trace formula consists of 1226 conjuncts, 78 conjuncts are in the unsatisfiable core [2024-11-19 13:30:19,835 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 13:30:20,225 INFO L134 CoverageAnalysis]: Checked inductivity of 455 backedges. 236 proven. 66 refuted. 0 times theorem prover too weak. 153 trivial. 0 not checked. [2024-11-19 13:30:20,225 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 13:30:21,018 INFO L134 CoverageAnalysis]: Checked inductivity of 455 backedges. 7 proven. 287 refuted. 0 times theorem prover too weak. 161 trivial. 0 not checked. [2024-11-19 13:30:21,018 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1584750052] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 13:30:21,018 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 13:30:21,018 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 20, 16] total 47 [2024-11-19 13:30:21,018 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1426219625] [2024-11-19 13:30:21,018 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 13:30:21,019 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 47 states [2024-11-19 13:30:21,019 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 13:30:21,019 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 47 interpolants. [2024-11-19 13:30:21,020 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=432, Invalid=1730, Unknown=0, NotChecked=0, Total=2162 [2024-11-19 13:30:21,020 INFO L87 Difference]: Start difference. First operand 3362 states and 4561 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) [2024-11-19 13:30:28,135 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 13:30:28,136 INFO L93 Difference]: Finished difference Result 6718 states and 9178 transitions. [2024-11-19 13:30:28,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2024-11-19 13:30:28,136 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 [2024-11-19 13:30:28,137 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 13:30:28,144 INFO L225 Difference]: With dead ends: 6718 [2024-11-19 13:30:28,144 INFO L226 Difference]: Without dead ends: 3473 [2024-11-19 13:30:28,148 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 388 GetRequests, 305 SyntacticMatches, 0 SemanticMatches, 83 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 797 ImplicationChecksByTransitivity, 7.2s TimeCoverageRelationStatistics Valid=1624, Invalid=5516, Unknown=0, NotChecked=0, Total=7140 [2024-11-19 13:30:28,149 INFO L432 NwaCegarLoop]: 586 mSDtfsCounter, 34 mSDsluCounter, 11059 mSDsCounter, 0 mSdLazyCounter, 1381 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 11645 SdHoareTripleChecker+Invalid, 1399 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 1381 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-19 13:30:28,149 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 11645 Invalid, 1399 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 1381 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-19 13:30:28,150 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3473 states. [2024-11-19 13:30:28,246 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3473 to 3440. [2024-11-19 13:30:28,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3440 states, 3302 states have (on average 1.3506965475469412) internal successors, (4460), 3313 states have internal predecessors, (4460), 86 states have call successors, (86), 47 states have call predecessors, (86), 40 states have return successors, (93), 79 states have call predecessors, (93), 86 states have call successors, (93) [2024-11-19 13:30:28,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3440 states to 3440 states and 4639 transitions. [2024-11-19 13:30:28,254 INFO L78 Accepts]: Start accepts. Automaton has 3440 states and 4639 transitions. Word has length 167 [2024-11-19 13:30:28,254 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 13:30:28,254 INFO L471 AbstractCegarLoop]: Abstraction has 3440 states and 4639 transitions. [2024-11-19 13:30:28,255 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) [2024-11-19 13:30:28,255 INFO L276 IsEmpty]: Start isEmpty. Operand 3440 states and 4639 transitions. [2024-11-19 13:30:28,256 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2024-11-19 13:30:28,256 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 13:30:28,256 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] [2024-11-19 13:30:28,273 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2024-11-19 13:30:28,459 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,SelfDestructingSolverStorable28 [2024-11-19 13:30:28,460 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)] === [2024-11-19 13:30:28,460 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 13:30:28,460 INFO L85 PathProgramCache]: Analyzing trace with hash -1518406691, now seen corresponding path program 2 times [2024-11-19 13:30:28,460 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 13:30:28,461 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [491534480] [2024-11-19 13:30:28,461 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-19 13:30:28,461 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 13:30:29,045 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-19 13:30:29,046 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 13:30:30,540 INFO L134 CoverageAnalysis]: Checked inductivity of 923 backedges. 7 proven. 755 refuted. 0 times theorem prover too weak. 161 trivial. 0 not checked. [2024-11-19 13:30:30,541 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 13:30:30,541 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [491534480] [2024-11-19 13:30:30,541 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [491534480] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 13:30:30,541 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1382665401] [2024-11-19 13:30:30,541 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-19 13:30:30,541 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 13:30:30,541 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 13:30:30,542 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) [2024-11-19 13:30:30,543 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2024-11-19 13:30:31,285 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-19 13:30:31,285 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 13:30:31,293 INFO L255 TraceCheckSpWp]: Trace formula consists of 1421 conjuncts, 96 conjuncts are in the unsatisfiable core [2024-11-19 13:30:31,296 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 13:30:33,228 INFO L134 CoverageAnalysis]: Checked inductivity of 923 backedges. 24 proven. 873 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2024-11-19 13:30:33,228 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 13:30:34,750 INFO L134 CoverageAnalysis]: Checked inductivity of 923 backedges. 462 proven. 153 refuted. 0 times theorem prover too weak. 308 trivial. 0 not checked. [2024-11-19 13:30:34,751 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1382665401] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 13:30:34,751 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 13:30:34,751 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [29, 44, 22] total 90 [2024-11-19 13:30:34,751 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [518046025] [2024-11-19 13:30:34,751 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 13:30:34,753 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 90 states [2024-11-19 13:30:34,754 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 13:30:34,755 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 90 interpolants. [2024-11-19 13:30:34,761 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1393, Invalid=6617, Unknown=0, NotChecked=0, Total=8010 [2024-11-19 13:30:34,761 INFO L87 Difference]: Start difference. First operand 3440 states and 4639 transitions. Second operand has 90 states, 90 states have (on average 2.522222222222222) internal successors, (227), 90 states have internal predecessors, (227), 3 states have call successors, (8), 1 states have call predecessors, (8), 7 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2024-11-19 13:31:01,970 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 13:31:01,971 INFO L93 Difference]: Finished difference Result 6955 states and 9507 transitions. [2024-11-19 13:31:01,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 102 states. [2024-11-19 13:31:01,971 INFO L78 Accepts]: Start accepts. Automaton has has 90 states, 90 states have (on average 2.522222222222222) internal successors, (227), 90 states have internal predecessors, (227), 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 180 [2024-11-19 13:31:01,971 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 13:31:01,983 INFO L225 Difference]: With dead ends: 6955 [2024-11-19 13:31:01,983 INFO L226 Difference]: Without dead ends: 3651 [2024-11-19 13:31:01,992 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 464 GetRequests, 302 SyntacticMatches, 0 SemanticMatches, 162 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5521 ImplicationChecksByTransitivity, 28.7s TimeCoverageRelationStatistics Valid=4202, Invalid=22530, Unknown=0, NotChecked=0, Total=26732 [2024-11-19 13:31:01,993 INFO L432 NwaCegarLoop]: 585 mSDtfsCounter, 53 mSDsluCounter, 16875 mSDsCounter, 0 mSdLazyCounter, 2881 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 17460 SdHoareTripleChecker+Invalid, 2917 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 2881 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-11-19 13:31:01,993 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [53 Valid, 17460 Invalid, 2917 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 2881 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-11-19 13:31:01,995 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3651 states. [2024-11-19 13:31:02,128 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3651 to 3537. [2024-11-19 13:31:02,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3537 states, 3399 states have (on average 1.348337746395999) internal successors, (4583), 3410 states have internal predecessors, (4583), 86 states have call successors, (86), 47 states have call predecessors, (86), 40 states have return successors, (93), 79 states have call predecessors, (93), 86 states have call successors, (93) [2024-11-19 13:31:02,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3537 states to 3537 states and 4762 transitions. [2024-11-19 13:31:02,138 INFO L78 Accepts]: Start accepts. Automaton has 3537 states and 4762 transitions. Word has length 180 [2024-11-19 13:31:02,139 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 13:31:02,139 INFO L471 AbstractCegarLoop]: Abstraction has 3537 states and 4762 transitions. [2024-11-19 13:31:02,139 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 90 states, 90 states have (on average 2.522222222222222) internal successors, (227), 90 states have internal predecessors, (227), 3 states have call successors, (8), 1 states have call predecessors, (8), 7 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2024-11-19 13:31:02,139 INFO L276 IsEmpty]: Start isEmpty. Operand 3537 states and 4762 transitions. [2024-11-19 13:31:02,140 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 208 [2024-11-19 13:31:02,140 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 13:31:02,140 INFO L215 NwaCegarLoop]: trace histogram [68, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 13:31:02,161 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Ended with exit code 0 [2024-11-19 13:31:02,344 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 [2024-11-19 13:31:02,345 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)] === [2024-11-19 13:31:02,345 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 13:31:02,345 INFO L85 PathProgramCache]: Analyzing trace with hash -1904163422, now seen corresponding path program 3 times [2024-11-19 13:31:02,345 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 13:31:02,345 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [389735570] [2024-11-19 13:31:02,346 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-19 13:31:02,346 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 13:31:02,450 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-11-19 13:31:02,450 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 13:31:02,857 INFO L134 CoverageAnalysis]: Checked inductivity of 2435 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 2428 trivial. 0 not checked. [2024-11-19 13:31:02,857 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 13:31:02,857 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [389735570] [2024-11-19 13:31:02,858 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [389735570] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 13:31:02,858 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 13:31:02,858 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-19 13:31:02,858 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1386648426] [2024-11-19 13:31:02,858 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 13:31:02,858 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-19 13:31:02,858 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 13:31:02,859 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-19 13:31:02,859 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2024-11-19 13:31:02,859 INFO L87 Difference]: Start difference. First operand 3537 states and 4762 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) [2024-11-19 13:31:07,002 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.94s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-19 13:31:07,574 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 13:31:07,574 INFO L93 Difference]: Finished difference Result 7091 states and 9545 transitions. [2024-11-19 13:31:07,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-19 13:31:07,578 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 207 [2024-11-19 13:31:07,579 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 13:31:07,588 INFO L225 Difference]: With dead ends: 7091 [2024-11-19 13:31:07,589 INFO L226 Difference]: Without dead ends: 3641 [2024-11-19 13:31:07,592 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 [2024-11-19 13:31:07,593 INFO L432 NwaCegarLoop]: 584 mSDtfsCounter, 44 mSDsluCounter, 3603 mSDsCounter, 0 mSdLazyCounter, 631 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 4187 SdHoareTripleChecker+Invalid, 637 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 631 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2024-11-19 13:31:07,593 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 4187 Invalid, 637 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 631 Invalid, 0 Unknown, 0 Unchecked, 4.4s Time] [2024-11-19 13:31:07,595 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3641 states. [2024-11-19 13:31:07,740 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3641 to 3555. [2024-11-19 13:31:07,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3555 states, 3417 states have (on average 1.3467954345917472) internal successors, (4602), 3428 states have internal predecessors, (4602), 86 states have call successors, (86), 47 states have call predecessors, (86), 40 states have return successors, (93), 79 states have call predecessors, (93), 86 states have call successors, (93) [2024-11-19 13:31:07,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3555 states to 3555 states and 4781 transitions. [2024-11-19 13:31:07,750 INFO L78 Accepts]: Start accepts. Automaton has 3555 states and 4781 transitions. Word has length 207 [2024-11-19 13:31:07,750 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 13:31:07,750 INFO L471 AbstractCegarLoop]: Abstraction has 3555 states and 4781 transitions. [2024-11-19 13:31:07,750 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) [2024-11-19 13:31:07,750 INFO L276 IsEmpty]: Start isEmpty. Operand 3555 states and 4781 transitions. [2024-11-19 13:31:07,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 208 [2024-11-19 13:31:07,752 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 13:31:07,752 INFO L215 NwaCegarLoop]: trace histogram [68, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 13:31:07,752 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2024-11-19 13:31:07,753 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-19 13:31:07,753 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 13:31:07,753 INFO L85 PathProgramCache]: Analyzing trace with hash 1194333349, now seen corresponding path program 1 times [2024-11-19 13:31:07,753 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 13:31:07,753 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [53917149] [2024-11-19 13:31:07,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 13:31:07,753 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms