./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/no-overflow.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test6-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 84cfde4a Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test6-2.i -s /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-clean/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 1d2a98d270a821b4275b6b35f502458543f3a892fcdda158c69925a18d34f6cf --- Real Ultimate output --- This is Ultimate 0.2.5-dev-84cfde4 [2024-10-11 23:43:50,771 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-11 23:43:50,828 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-10-11 23:43:50,833 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-11 23:43:50,833 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-11 23:43:50,849 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-11 23:43:50,850 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-11 23:43:50,850 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-11 23:43:50,852 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-11 23:43:50,854 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-11 23:43:50,854 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-11 23:43:50,855 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-11 23:43:50,855 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-11 23:43:50,855 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-11 23:43:50,855 INFO L153 SettingsManager]: * Use SBE=true [2024-10-11 23:43:50,855 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-11 23:43:50,856 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-11 23:43:50,856 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-11 23:43:50,856 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-11 23:43:50,856 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-11 23:43:50,856 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-11 23:43:50,858 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-11 23:43:50,858 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-11 23:43:50,858 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-11 23:43:50,858 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-11 23:43:50,858 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-10-11 23:43:50,859 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-11 23:43:50,859 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-11 23:43:50,859 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-11 23:43:50,859 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-11 23:43:50,859 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-11 23:43:50,859 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-11 23:43:50,860 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-11 23:43:50,860 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-11 23:43:50,860 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 23:43:50,860 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-11 23:43:50,860 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-11 23:43:50,860 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-11 23:43:50,861 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-11 23:43:50,861 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-11 23:43:50,861 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-11 23:43:50,862 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-11 23:43:50,862 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-11 23:43:50,862 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-11 23:43:50,863 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-clean/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1d2a98d270a821b4275b6b35f502458543f3a892fcdda158c69925a18d34f6cf [2024-10-11 23:43:51,042 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-11 23:43:51,063 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-11 23:43:51,065 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-11 23:43:51,066 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-11 23:43:51,067 INFO L274 PluginConnector]: CDTParser initialized [2024-10-11 23:43:51,068 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test6-2.i [2024-10-11 23:43:52,237 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-11 23:43:52,462 INFO L384 CDTParser]: Found 1 translation units. [2024-10-11 23:43:52,462 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test6-2.i [2024-10-11 23:43:52,478 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/dab37197b/6470bba4469b424db0dc2a0d4476a323/FLAG1584dfc60 [2024-10-11 23:43:52,800 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/dab37197b/6470bba4469b424db0dc2a0d4476a323 [2024-10-11 23:43:52,802 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-11 23:43:52,803 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-11 23:43:52,804 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-11 23:43:52,804 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-11 23:43:52,808 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-11 23:43:52,808 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 11:43:52" (1/1) ... [2024-10-11 23:43:52,809 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@68963bd5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 11:43:52, skipping insertion in model container [2024-10-11 23:43:52,809 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 11:43:52" (1/1) ... [2024-10-11 23:43:52,862 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-11 23:43:53,499 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 23:43:53,509 INFO L200 MainTranslator]: Completed pre-run [2024-10-11 23:43:53,628 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 23:43:53,681 INFO L204 MainTranslator]: Completed translation [2024-10-11 23:43:53,682 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 11:43:53 WrapperNode [2024-10-11 23:43:53,682 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-11 23:43:53,683 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-11 23:43:53,684 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-11 23:43:53,684 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-11 23:43:53,689 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 11:43:53" (1/1) ... [2024-10-11 23:43:53,726 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 11:43:53" (1/1) ... [2024-10-11 23:43:53,787 INFO L138 Inliner]: procedures = 282, calls = 343, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 1648 [2024-10-11 23:43:53,788 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-11 23:43:53,795 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-11 23:43:53,796 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-11 23:43:53,796 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-11 23:43:53,803 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 11:43:53" (1/1) ... [2024-10-11 23:43:53,804 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 11:43:53" (1/1) ... [2024-10-11 23:43:53,817 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 11:43:53" (1/1) ... [2024-10-11 23:43:53,888 INFO L175 MemorySlicer]: Split 309 memory accesses to 4 slices as follows [2, 3, 270, 34]. 87 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0, 0]. The 63 writes are split as follows [0, 2, 57, 4]. [2024-10-11 23:43:53,888 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 11:43:53" (1/1) ... [2024-10-11 23:43:53,889 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 11:43:53" (1/1) ... [2024-10-11 23:43:53,914 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 11:43:53" (1/1) ... [2024-10-11 23:43:53,927 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 11:43:53" (1/1) ... [2024-10-11 23:43:53,935 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 11:43:53" (1/1) ... [2024-10-11 23:43:53,938 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 11:43:53" (1/1) ... [2024-10-11 23:43:53,946 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-11 23:43:53,947 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-11 23:43:53,947 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-11 23:43:53,947 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-11 23:43:53,948 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 11:43:53" (1/1) ... [2024-10-11 23:43:53,952 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 23:43:53,959 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 23:43:53,971 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-11 23:43:53,972 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-11 23:43:54,002 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2024-10-11 23:43:54,002 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2024-10-11 23:43:54,002 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-10-11 23:43:54,002 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-10-11 23:43:54,002 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-10-11 23:43:54,002 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-10-11 23:43:54,003 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-10-11 23:43:54,003 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-10-11 23:43:54,003 INFO L130 BoogieDeclarations]: Found specification of procedure alt_bzero [2024-10-11 23:43:54,003 INFO L138 BoogieDeclarations]: Found implementation of procedure alt_bzero [2024-10-11 23:43:54,003 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-10-11 23:43:54,003 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-10-11 23:43:54,003 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-10-11 23:43:54,003 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-10-11 23:43:54,003 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-10-11 23:43:54,003 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-10-11 23:43:54,003 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-10-11 23:43:54,003 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-10-11 23:43:54,003 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-10-11 23:43:54,003 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-10-11 23:43:54,003 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-10-11 23:43:54,003 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-11 23:43:54,004 INFO L130 BoogieDeclarations]: Found specification of procedure alt_malloc [2024-10-11 23:43:54,004 INFO L138 BoogieDeclarations]: Found implementation of procedure alt_malloc [2024-10-11 23:43:54,004 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-10-11 23:43:54,004 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-10-11 23:43:54,004 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-10-11 23:43:54,004 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-10-11 23:43:54,004 INFO L130 BoogieDeclarations]: Found specification of procedure alt_free [2024-10-11 23:43:54,006 INFO L138 BoogieDeclarations]: Found implementation of procedure alt_free [2024-10-11 23:43:54,006 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-11 23:43:54,006 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-10-11 23:43:54,006 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-10-11 23:43:54,006 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-10-11 23:43:54,006 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-11 23:43:54,006 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-11 23:43:54,174 INFO L238 CfgBuilder]: Building ICFG [2024-10-11 23:43:54,175 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-11 23:43:55,227 INFO L? ?]: Removed 376 outVars from TransFormulas that were not future-live. [2024-10-11 23:43:55,229 INFO L287 CfgBuilder]: Performing block encoding [2024-10-11 23:43:55,275 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-11 23:43:55,279 INFO L314 CfgBuilder]: Removed 72 assume(true) statements. [2024-10-11 23:43:55,280 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 11:43:55 BoogieIcfgContainer [2024-10-11 23:43:55,280 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-11 23:43:55,281 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-11 23:43:55,281 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-11 23:43:55,285 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-11 23:43:55,285 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 11:43:52" (1/3) ... [2024-10-11 23:43:55,286 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@865af76 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 11:43:55, skipping insertion in model container [2024-10-11 23:43:55,286 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 11:43:53" (2/3) ... [2024-10-11 23:43:55,286 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@865af76 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 11:43:55, skipping insertion in model container [2024-10-11 23:43:55,286 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 11:43:55" (3/3) ... [2024-10-11 23:43:55,288 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_SFH_test6-2.i [2024-10-11 23:43:55,301 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-11 23:43:55,301 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 14 error locations. [2024-10-11 23:43:55,370 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-11 23:43:55,376 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;@50e3c48d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-11 23:43:55,377 INFO L334 AbstractCegarLoop]: Starting to check reachability of 14 error locations. [2024-10-11 23:43:55,382 INFO L276 IsEmpty]: Start isEmpty. Operand has 490 states, 451 states have (on average 1.6208425720620843) internal successors, (731), 468 states have internal predecessors, (731), 20 states have call successors, (20), 5 states have call predecessors, (20), 5 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-10-11 23:43:55,387 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-10-11 23:43:55,387 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 23:43:55,388 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2024-10-11 23:43:55,388 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-10-11 23:43:55,393 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 23:43:55,394 INFO L85 PathProgramCache]: Analyzing trace with hash 612313603, now seen corresponding path program 1 times [2024-10-11 23:43:55,401 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 23:43:55,402 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1678009017] [2024-10-11 23:43:55,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 23:43:55,402 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 23:43:55,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 23:43:55,576 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 23:43:55,577 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 23:43:55,577 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1678009017] [2024-10-11 23:43:55,577 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1678009017] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 23:43:55,578 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 23:43:55,578 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-11 23:43:55,579 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2139170658] [2024-10-11 23:43:55,579 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 23:43:55,582 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-11 23:43:55,583 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 23:43:55,600 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-11 23:43:55,600 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-11 23:43:55,604 INFO L87 Difference]: Start difference. First operand has 490 states, 451 states have (on average 1.6208425720620843) internal successors, (731), 468 states have internal predecessors, (731), 20 states have call successors, (20), 5 states have call predecessors, (20), 5 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) Second operand has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 23:43:55,684 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 23:43:55,684 INFO L93 Difference]: Finished difference Result 974 states and 1548 transitions. [2024-10-11 23:43:55,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-11 23:43:55,688 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2024-10-11 23:43:55,689 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 23:43:55,702 INFO L225 Difference]: With dead ends: 974 [2024-10-11 23:43:55,704 INFO L226 Difference]: Without dead ends: 478 [2024-10-11 23:43:55,708 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-11 23:43:55,711 INFO L432 NwaCegarLoop]: 675 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 675 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 23:43:55,712 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 675 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 23:43:55,727 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 478 states. [2024-10-11 23:43:55,755 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 478 to 478. [2024-10-11 23:43:55,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 478 states, 445 states have (on average 1.447191011235955) internal successors, (644), 459 states have internal predecessors, (644), 15 states have call successors, (15), 4 states have call predecessors, (15), 4 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-10-11 23:43:55,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 478 states to 478 states and 674 transitions. [2024-10-11 23:43:55,761 INFO L78 Accepts]: Start accepts. Automaton has 478 states and 674 transitions. Word has length 6 [2024-10-11 23:43:55,761 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 23:43:55,761 INFO L471 AbstractCegarLoop]: Abstraction has 478 states and 674 transitions. [2024-10-11 23:43:55,761 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 23:43:55,761 INFO L276 IsEmpty]: Start isEmpty. Operand 478 states and 674 transitions. [2024-10-11 23:43:55,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-10-11 23:43:55,762 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 23:43:55,762 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2024-10-11 23:43:55,762 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-11 23:43:55,762 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-10-11 23:43:55,763 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 23:43:55,763 INFO L85 PathProgramCache]: Analyzing trace with hash 612315525, now seen corresponding path program 1 times [2024-10-11 23:43:55,763 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 23:43:55,763 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1233403403] [2024-10-11 23:43:55,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 23:43:55,764 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 23:43:55,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-11 23:43:55,797 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2096161364] [2024-10-11 23:43:55,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 23:43:55,798 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 23:43:55,798 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 23:43:55,799 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 23:43:55,801 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-11 23:43:55,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 23:43:55,966 INFO L255 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-11 23:43:55,969 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 23:43:56,011 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-10-11 23:43:56,037 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 23:43:56,037 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 23:43:56,037 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 23:43:56,039 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1233403403] [2024-10-11 23:43:56,039 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-11 23:43:56,039 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2096161364] [2024-10-11 23:43:56,040 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2096161364] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 23:43:56,040 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 23:43:56,040 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-11 23:43:56,041 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [362885240] [2024-10-11 23:43:56,041 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 23:43:56,041 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-11 23:43:56,042 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 23:43:56,042 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-11 23:43:56,042 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-11 23:43:56,043 INFO L87 Difference]: Start difference. First operand 478 states and 674 transitions. Second operand has 4 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 23:43:56,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 23:43:56,214 INFO L93 Difference]: Finished difference Result 927 states and 1320 transitions. [2024-10-11 23:43:56,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-11 23:43:56,215 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2024-10-11 23:43:56,215 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 23:43:56,220 INFO L225 Difference]: With dead ends: 927 [2024-10-11 23:43:56,220 INFO L226 Difference]: Without dead ends: 925 [2024-10-11 23:43:56,222 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-11 23:43:56,224 INFO L432 NwaCegarLoop]: 683 mSDtfsCounter, 611 mSDsluCounter, 1313 mSDsCounter, 0 mSdLazyCounter, 108 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 625 SdHoareTripleChecker+Valid, 1996 SdHoareTripleChecker+Invalid, 111 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 108 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 23:43:56,224 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [625 Valid, 1996 Invalid, 111 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 108 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 23:43:56,225 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 925 states. [2024-10-11 23:43:56,269 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 925 to 484. [2024-10-11 23:43:56,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 484 states, 451 states have (on average 1.4434589800443458) internal successors, (651), 465 states have internal predecessors, (651), 15 states have call successors, (15), 4 states have call predecessors, (15), 4 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-10-11 23:43:56,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 484 states to 484 states and 681 transitions. [2024-10-11 23:43:56,272 INFO L78 Accepts]: Start accepts. Automaton has 484 states and 681 transitions. Word has length 6 [2024-10-11 23:43:56,272 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 23:43:56,273 INFO L471 AbstractCegarLoop]: Abstraction has 484 states and 681 transitions. [2024-10-11 23:43:56,273 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 23:43:56,273 INFO L276 IsEmpty]: Start isEmpty. Operand 484 states and 681 transitions. [2024-10-11 23:43:56,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2024-10-11 23:43:56,274 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 23:43:56,274 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 23:43:56,288 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-10-11 23:43:56,475 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 23:43:56,475 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-10-11 23:43:56,476 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 23:43:56,476 INFO L85 PathProgramCache]: Analyzing trace with hash 1096986538, now seen corresponding path program 1 times [2024-10-11 23:43:56,476 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 23:43:56,476 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [948222446] [2024-10-11 23:43:56,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 23:43:56,476 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 23:43:56,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 23:43:56,633 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-11 23:43:56,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 23:43:56,639 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-11 23:43:56,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 23:43:56,642 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-11 23:43:56,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 23:43:56,648 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-11 23:43:56,648 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 23:43:56,648 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [948222446] [2024-10-11 23:43:56,648 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [948222446] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 23:43:56,648 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 23:43:56,648 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-11 23:43:56,648 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1982985082] [2024-10-11 23:43:56,649 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 23:43:56,649 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-11 23:43:56,649 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 23:43:56,650 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-11 23:43:56,650 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-11 23:43:56,650 INFO L87 Difference]: Start difference. First operand 484 states and 681 transitions. Second operand has 4 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-11 23:43:56,779 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 23:43:56,779 INFO L93 Difference]: Finished difference Result 1175 states and 1671 transitions. [2024-10-11 23:43:56,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-11 23:43:56,780 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 33 [2024-10-11 23:43:56,780 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 23:43:56,783 INFO L225 Difference]: With dead ends: 1175 [2024-10-11 23:43:56,783 INFO L226 Difference]: Without dead ends: 924 [2024-10-11 23:43:56,784 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-11 23:43:56,785 INFO L432 NwaCegarLoop]: 701 mSDtfsCounter, 612 mSDsluCounter, 1334 mSDsCounter, 0 mSdLazyCounter, 101 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 626 SdHoareTripleChecker+Valid, 2035 SdHoareTripleChecker+Invalid, 102 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 101 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 23:43:56,786 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [626 Valid, 2035 Invalid, 102 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 101 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 23:43:56,787 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 924 states. [2024-10-11 23:43:56,797 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 924 to 484. [2024-10-11 23:43:56,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 484 states, 451 states have (on average 1.441241685144124) internal successors, (650), 465 states have internal predecessors, (650), 15 states have call successors, (15), 4 states have call predecessors, (15), 4 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-10-11 23:43:56,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 484 states to 484 states and 680 transitions. [2024-10-11 23:43:56,800 INFO L78 Accepts]: Start accepts. Automaton has 484 states and 680 transitions. Word has length 33 [2024-10-11 23:43:56,800 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 23:43:56,800 INFO L471 AbstractCegarLoop]: Abstraction has 484 states and 680 transitions. [2024-10-11 23:43:56,801 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-11 23:43:56,801 INFO L276 IsEmpty]: Start isEmpty. Operand 484 states and 680 transitions. [2024-10-11 23:43:56,803 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2024-10-11 23:43:56,804 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 23:43:56,804 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 23:43:56,804 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-11 23:43:56,804 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-10-11 23:43:56,805 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 23:43:56,805 INFO L85 PathProgramCache]: Analyzing trace with hash -630495610, now seen corresponding path program 1 times [2024-10-11 23:43:56,805 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 23:43:56,805 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [4595484] [2024-10-11 23:43:56,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 23:43:56,809 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 23:43:56,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 23:43:56,989 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 23:43:56,989 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 23:43:56,989 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [4595484] [2024-10-11 23:43:56,990 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [4595484] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 23:43:56,990 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 23:43:56,990 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-11 23:43:56,991 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [363039760] [2024-10-11 23:43:56,991 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 23:43:56,992 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-11 23:43:56,992 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 23:43:56,992 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-11 23:43:56,992 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-11 23:43:56,992 INFO L87 Difference]: Start difference. First operand 484 states and 680 transitions. Second operand has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 23:43:57,064 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 23:43:57,064 INFO L93 Difference]: Finished difference Result 919 states and 1287 transitions. [2024-10-11 23:43:57,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-11 23:43:57,065 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 62 [2024-10-11 23:43:57,065 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 23:43:57,066 INFO L225 Difference]: With dead ends: 919 [2024-10-11 23:43:57,067 INFO L226 Difference]: Without dead ends: 442 [2024-10-11 23:43:57,067 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-11 23:43:57,068 INFO L432 NwaCegarLoop]: 564 mSDtfsCounter, 30 mSDsluCounter, 1111 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 1675 SdHoareTripleChecker+Invalid, 87 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 23:43:57,068 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 1675 Invalid, 87 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 23:43:57,069 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 442 states. [2024-10-11 23:43:57,075 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 442 to 442. [2024-10-11 23:43:57,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 442 states, 409 states have (on average 1.4009779951100245) internal successors, (573), 423 states have internal predecessors, (573), 15 states have call successors, (15), 4 states have call predecessors, (15), 4 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-10-11 23:43:57,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 442 states to 442 states and 603 transitions. [2024-10-11 23:43:57,077 INFO L78 Accepts]: Start accepts. Automaton has 442 states and 603 transitions. Word has length 62 [2024-10-11 23:43:57,077 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 23:43:57,077 INFO L471 AbstractCegarLoop]: Abstraction has 442 states and 603 transitions. [2024-10-11 23:43:57,077 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 23:43:57,077 INFO L276 IsEmpty]: Start isEmpty. Operand 442 states and 603 transitions. [2024-10-11 23:43:57,078 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2024-10-11 23:43:57,078 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 23:43:57,079 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 23:43:57,079 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-11 23:43:57,079 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-10-11 23:43:57,079 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 23:43:57,079 INFO L85 PathProgramCache]: Analyzing trace with hash -1694695558, now seen corresponding path program 1 times [2024-10-11 23:43:57,079 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 23:43:57,080 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2034264513] [2024-10-11 23:43:57,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 23:43:57,080 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 23:43:57,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 23:43:57,234 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 23:43:57,237 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 23:43:57,237 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2034264513] [2024-10-11 23:43:57,237 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2034264513] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 23:43:57,237 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 23:43:57,237 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-11 23:43:57,238 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2081166799] [2024-10-11 23:43:57,238 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 23:43:57,238 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-11 23:43:57,238 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 23:43:57,238 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-11 23:43:57,238 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-11 23:43:57,238 INFO L87 Difference]: Start difference. First operand 442 states and 603 transitions. Second operand has 4 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 23:43:57,309 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 23:43:57,309 INFO L93 Difference]: Finished difference Result 811 states and 1114 transitions. [2024-10-11 23:43:57,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-11 23:43:57,310 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 62 [2024-10-11 23:43:57,310 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 23:43:57,314 INFO L225 Difference]: With dead ends: 811 [2024-10-11 23:43:57,314 INFO L226 Difference]: Without dead ends: 807 [2024-10-11 23:43:57,315 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-11 23:43:57,315 INFO L432 NwaCegarLoop]: 580 mSDtfsCounter, 437 mSDsluCounter, 1151 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 437 SdHoareTripleChecker+Valid, 1731 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 23:43:57,315 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [437 Valid, 1731 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 23:43:57,316 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 807 states. [2024-10-11 23:43:57,332 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 807 to 799. [2024-10-11 23:43:57,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 799 states, 758 states have (on average 1.4063324538258575) internal successors, (1066), 774 states have internal predecessors, (1066), 22 states have call successors, (22), 7 states have call predecessors, (22), 5 states have return successors, (22), 18 states have call predecessors, (22), 22 states have call successors, (22) [2024-10-11 23:43:57,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 799 states to 799 states and 1110 transitions. [2024-10-11 23:43:57,337 INFO L78 Accepts]: Start accepts. Automaton has 799 states and 1110 transitions. Word has length 62 [2024-10-11 23:43:57,338 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 23:43:57,338 INFO L471 AbstractCegarLoop]: Abstraction has 799 states and 1110 transitions. [2024-10-11 23:43:57,339 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 23:43:57,339 INFO L276 IsEmpty]: Start isEmpty. Operand 799 states and 1110 transitions. [2024-10-11 23:43:57,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2024-10-11 23:43:57,343 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 23:43:57,343 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 23:43:57,343 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-11 23:43:57,343 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting alt_bzeroErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-10-11 23:43:57,343 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 23:43:57,343 INFO L85 PathProgramCache]: Analyzing trace with hash 1581839952, now seen corresponding path program 1 times [2024-10-11 23:43:57,344 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 23:43:57,344 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1882204621] [2024-10-11 23:43:57,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 23:43:57,344 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 23:43:57,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 23:43:57,485 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-10-11 23:43:57,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 23:43:57,495 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 23:43:57,496 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 23:43:57,496 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1882204621] [2024-10-11 23:43:57,496 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1882204621] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 23:43:57,496 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 23:43:57,496 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 23:43:57,496 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1211510519] [2024-10-11 23:43:57,496 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 23:43:57,496 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-11 23:43:57,497 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 23:43:57,497 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-11 23:43:57,497 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-11 23:43:57,497 INFO L87 Difference]: Start difference. First operand 799 states and 1110 transitions. Second operand has 4 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-10-11 23:43:57,643 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 23:43:57,643 INFO L93 Difference]: Finished difference Result 1068 states and 1481 transitions. [2024-10-11 23:43:57,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-11 23:43:57,644 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 71 [2024-10-11 23:43:57,644 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 23:43:57,648 INFO L225 Difference]: With dead ends: 1068 [2024-10-11 23:43:57,648 INFO L226 Difference]: Without dead ends: 1066 [2024-10-11 23:43:57,649 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-11 23:43:57,650 INFO L432 NwaCegarLoop]: 565 mSDtfsCounter, 489 mSDsluCounter, 1098 mSDsCounter, 0 mSdLazyCounter, 76 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 493 SdHoareTripleChecker+Valid, 1663 SdHoareTripleChecker+Invalid, 103 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 76 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 23:43:57,651 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [493 Valid, 1663 Invalid, 103 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 76 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 23:43:57,652 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1066 states. [2024-10-11 23:43:57,688 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1066 to 1056. [2024-10-11 23:43:57,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1056 states, 1002 states have (on average 1.4121756487025947) internal successors, (1415), 1019 states have internal predecessors, (1415), 32 states have call successors, (32), 10 states have call predecessors, (32), 8 states have return successors, (32), 28 states have call predecessors, (32), 32 states have call successors, (32) [2024-10-11 23:43:57,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1056 states to 1056 states and 1479 transitions. [2024-10-11 23:43:57,692 INFO L78 Accepts]: Start accepts. Automaton has 1056 states and 1479 transitions. Word has length 71 [2024-10-11 23:43:57,692 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 23:43:57,692 INFO L471 AbstractCegarLoop]: Abstraction has 1056 states and 1479 transitions. [2024-10-11 23:43:57,693 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-10-11 23:43:57,693 INFO L276 IsEmpty]: Start isEmpty. Operand 1056 states and 1479 transitions. [2024-10-11 23:43:57,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2024-10-11 23:43:57,694 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 23:43:57,694 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 23:43:57,694 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-11 23:43:57,694 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-10-11 23:43:57,694 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 23:43:57,695 INFO L85 PathProgramCache]: Analyzing trace with hash 318405018, now seen corresponding path program 1 times [2024-10-11 23:43:57,695 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 23:43:57,695 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1932286806] [2024-10-11 23:43:57,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 23:43:57,695 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 23:43:57,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 23:43:57,923 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-10-11 23:43:57,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 23:43:57,967 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-11 23:43:57,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 23:43:57,972 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 23:43:57,972 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 23:43:57,972 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1932286806] [2024-10-11 23:43:57,972 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1932286806] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 23:43:57,972 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1587939089] [2024-10-11 23:43:57,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 23:43:57,972 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 23:43:57,973 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 23:43:57,974 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 23:43:57,975 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-10-11 23:43:58,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 23:43:58,185 INFO L255 TraceCheckSpWp]: Trace formula consists of 478 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-10-11 23:43:58,192 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 23:43:58,260 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 23:43:58,261 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 23:43:58,261 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1587939089] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 23:43:58,261 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-11 23:43:58,261 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [8] total 11 [2024-10-11 23:43:58,261 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1781767275] [2024-10-11 23:43:58,261 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 23:43:58,262 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-11 23:43:58,262 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 23:43:58,262 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-11 23:43:58,262 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2024-10-11 23:43:58,262 INFO L87 Difference]: Start difference. First operand 1056 states and 1479 transitions. Second operand has 5 states, 4 states have (on average 18.25) internal successors, (73), 5 states have internal predecessors, (73), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2024-10-11 23:43:58,359 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 23:43:58,359 INFO L93 Difference]: Finished difference Result 1427 states and 1991 transitions. [2024-10-11 23:43:58,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-11 23:43:58,359 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 18.25) internal successors, (73), 5 states have internal predecessors, (73), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 78 [2024-10-11 23:43:58,360 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 23:43:58,366 INFO L225 Difference]: With dead ends: 1427 [2024-10-11 23:43:58,366 INFO L226 Difference]: Without dead ends: 1426 [2024-10-11 23:43:58,367 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 77 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2024-10-11 23:43:58,368 INFO L432 NwaCegarLoop]: 573 mSDtfsCounter, 555 mSDsluCounter, 1080 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 555 SdHoareTripleChecker+Valid, 1653 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 23:43:58,368 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [555 Valid, 1653 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 23:43:58,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1426 states. [2024-10-11 23:43:58,403 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1426 to 1377. [2024-10-11 23:43:58,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1377 states, 1316 states have (on average 1.4141337386018238) internal successors, (1861), 1335 states have internal predecessors, (1861), 37 states have call successors, (37), 13 states have call predecessors, (37), 10 states have return successors, (37), 30 states have call predecessors, (37), 37 states have call successors, (37) [2024-10-11 23:43:58,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1377 states to 1377 states and 1935 transitions. [2024-10-11 23:43:58,411 INFO L78 Accepts]: Start accepts. Automaton has 1377 states and 1935 transitions. Word has length 78 [2024-10-11 23:43:58,411 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 23:43:58,411 INFO L471 AbstractCegarLoop]: Abstraction has 1377 states and 1935 transitions. [2024-10-11 23:43:58,412 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 18.25) internal successors, (73), 5 states have internal predecessors, (73), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2024-10-11 23:43:58,412 INFO L276 IsEmpty]: Start isEmpty. Operand 1377 states and 1935 transitions. [2024-10-11 23:43:58,413 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2024-10-11 23:43:58,414 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 23:43:58,414 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 23:43:58,428 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-10-11 23:43:58,615 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,3 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 23:43:58,616 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-10-11 23:43:58,616 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 23:43:58,616 INFO L85 PathProgramCache]: Analyzing trace with hash 1280621007, now seen corresponding path program 1 times [2024-10-11 23:43:58,616 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 23:43:58,616 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1521444721] [2024-10-11 23:43:58,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 23:43:58,617 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 23:43:58,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 23:43:58,796 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-10-11 23:43:58,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 23:43:58,840 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-11 23:43:58,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 23:43:58,845 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 23:43:58,845 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 23:43:58,846 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1521444721] [2024-10-11 23:43:58,846 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1521444721] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 23:43:58,846 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1090424343] [2024-10-11 23:43:58,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 23:43:58,846 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 23:43:58,846 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 23:43:58,847 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 23:43:58,849 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-10-11 23:43:59,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 23:43:59,064 INFO L255 TraceCheckSpWp]: Trace formula consists of 479 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-10-11 23:43:59,069 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 23:43:59,188 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 23:43:59,188 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 23:43:59,376 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 23:43:59,376 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1090424343] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 23:43:59,377 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-11 23:43:59,377 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 6, 7] total 18 [2024-10-11 23:43:59,377 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [789432044] [2024-10-11 23:43:59,377 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-11 23:43:59,377 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-10-11 23:43:59,378 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 23:43:59,379 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-10-11 23:43:59,379 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=269, Unknown=0, NotChecked=0, Total=342 [2024-10-11 23:43:59,379 INFO L87 Difference]: Start difference. First operand 1377 states and 1935 transitions. Second operand has 19 states, 18 states have (on average 11.833333333333334) internal successors, (213), 15 states have internal predecessors, (213), 5 states have call successors, (8), 7 states have call predecessors, (8), 5 states have return successors, (6), 2 states have call predecessors, (6), 5 states have call successors, (6) [2024-10-11 23:44:00,832 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 23:44:00,833 INFO L93 Difference]: Finished difference Result 3721 states and 5212 transitions. [2024-10-11 23:44:00,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2024-10-11 23:44:00,833 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 18 states have (on average 11.833333333333334) internal successors, (213), 15 states have internal predecessors, (213), 5 states have call successors, (8), 7 states have call predecessors, (8), 5 states have return successors, (6), 2 states have call predecessors, (6), 5 states have call successors, (6) Word has length 79 [2024-10-11 23:44:00,833 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 23:44:00,844 INFO L225 Difference]: With dead ends: 3721 [2024-10-11 23:44:00,844 INFO L226 Difference]: Without dead ends: 3719 [2024-10-11 23:44:00,846 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 199 GetRequests, 157 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 437 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=542, Invalid=1350, Unknown=0, NotChecked=0, Total=1892 [2024-10-11 23:44:00,846 INFO L432 NwaCegarLoop]: 634 mSDtfsCounter, 5594 mSDsluCounter, 6081 mSDsCounter, 0 mSdLazyCounter, 694 mSolverCounterSat, 369 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5619 SdHoareTripleChecker+Valid, 6715 SdHoareTripleChecker+Invalid, 1063 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 369 IncrementalHoareTripleChecker+Valid, 694 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-10-11 23:44:00,846 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5619 Valid, 6715 Invalid, 1063 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [369 Valid, 694 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-10-11 23:44:00,849 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3719 states. [2024-10-11 23:44:00,895 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3719 to 2752. [2024-10-11 23:44:00,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2752 states, 2632 states have (on average 1.3962765957446808) internal successors, (3675), 2653 states have internal predecessors, (3675), 83 states have call successors, (83), 28 states have call predecessors, (83), 23 states have return successors, (106), 70 states have call predecessors, (106), 83 states have call successors, (106) [2024-10-11 23:44:00,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2752 states to 2752 states and 3864 transitions. [2024-10-11 23:44:00,905 INFO L78 Accepts]: Start accepts. Automaton has 2752 states and 3864 transitions. Word has length 79 [2024-10-11 23:44:00,906 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 23:44:00,906 INFO L471 AbstractCegarLoop]: Abstraction has 2752 states and 3864 transitions. [2024-10-11 23:44:00,906 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 18 states have (on average 11.833333333333334) internal successors, (213), 15 states have internal predecessors, (213), 5 states have call successors, (8), 7 states have call predecessors, (8), 5 states have return successors, (6), 2 states have call predecessors, (6), 5 states have call successors, (6) [2024-10-11 23:44:00,906 INFO L276 IsEmpty]: Start isEmpty. Operand 2752 states and 3864 transitions. [2024-10-11 23:44:00,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2024-10-11 23:44:00,907 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 23:44:00,907 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 23:44:00,920 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-10-11 23:44:01,107 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,4 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 23:44:01,108 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-10-11 23:44:01,108 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 23:44:01,109 INFO L85 PathProgramCache]: Analyzing trace with hash 1237871349, now seen corresponding path program 1 times [2024-10-11 23:44:01,109 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 23:44:01,109 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [817386964] [2024-10-11 23:44:01,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 23:44:01,109 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 23:44:01,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 23:44:01,227 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 23:44:01,227 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 23:44:01,227 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [817386964] [2024-10-11 23:44:01,227 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [817386964] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 23:44:01,227 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 23:44:01,228 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-11 23:44:01,228 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1965870137] [2024-10-11 23:44:01,228 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 23:44:01,228 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 23:44:01,228 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 23:44:01,228 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 23:44:01,228 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 23:44:01,228 INFO L87 Difference]: Start difference. First operand 2752 states and 3864 transitions. Second operand has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 2 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 23:44:01,371 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 23:44:01,371 INFO L93 Difference]: Finished difference Result 5765 states and 8133 transitions. [2024-10-11 23:44:01,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 23:44:01,372 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 2 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 80 [2024-10-11 23:44:01,372 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 23:44:01,381 INFO L225 Difference]: With dead ends: 5765 [2024-10-11 23:44:01,381 INFO L226 Difference]: Without dead ends: 3020 [2024-10-11 23:44:01,384 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 23:44:01,386 INFO L432 NwaCegarLoop]: 808 mSDtfsCounter, 342 mSDsluCounter, 548 mSDsCounter, 0 mSdLazyCounter, 75 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 347 SdHoareTripleChecker+Valid, 1356 SdHoareTripleChecker+Invalid, 81 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 75 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 23:44:01,386 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [347 Valid, 1356 Invalid, 81 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 75 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 23:44:01,389 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3020 states. [2024-10-11 23:44:01,441 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3020 to 2909. [2024-10-11 23:44:01,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2909 states, 2795 states have (on average 1.4089445438282648) internal successors, (3938), 2815 states have internal predecessors, (3938), 80 states have call successors, (80), 24 states have call predecessors, (80), 20 states have return successors, (102), 69 states have call predecessors, (102), 80 states have call successors, (102) [2024-10-11 23:44:01,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2909 states to 2909 states and 4120 transitions. [2024-10-11 23:44:01,453 INFO L78 Accepts]: Start accepts. Automaton has 2909 states and 4120 transitions. Word has length 80 [2024-10-11 23:44:01,453 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 23:44:01,453 INFO L471 AbstractCegarLoop]: Abstraction has 2909 states and 4120 transitions. [2024-10-11 23:44:01,453 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 2 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 23:44:01,453 INFO L276 IsEmpty]: Start isEmpty. Operand 2909 states and 4120 transitions. [2024-10-11 23:44:01,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2024-10-11 23:44:01,455 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 23:44:01,455 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 23:44:01,455 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-11 23:44:01,455 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting alt_bzeroErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-10-11 23:44:01,456 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 23:44:01,456 INFO L85 PathProgramCache]: Analyzing trace with hash 593112272, now seen corresponding path program 1 times [2024-10-11 23:44:01,456 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 23:44:01,456 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [977900501] [2024-10-11 23:44:01,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 23:44:01,456 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 23:44:01,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 23:44:01,702 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-10-11 23:44:01,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 23:44:01,722 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-11 23:44:01,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 23:44:01,749 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-10-11 23:44:01,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 23:44:01,762 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-10-11 23:44:01,762 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 23:44:01,763 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [977900501] [2024-10-11 23:44:01,763 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [977900501] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 23:44:01,764 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1497574566] [2024-10-11 23:44:01,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 23:44:01,764 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 23:44:01,764 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 23:44:01,766 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 23:44:01,767 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-10-11 23:44:02,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 23:44:02,011 INFO L255 TraceCheckSpWp]: Trace formula consists of 572 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-11 23:44:02,014 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 23:44:02,055 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 23:44:02,055 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 23:44:02,055 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1497574566] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 23:44:02,055 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-11 23:44:02,055 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 9 [2024-10-11 23:44:02,055 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [716815486] [2024-10-11 23:44:02,056 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 23:44:02,056 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-11 23:44:02,056 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 23:44:02,056 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-11 23:44:02,056 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2024-10-11 23:44:02,056 INFO L87 Difference]: Start difference. First operand 2909 states and 4120 transitions. Second operand has 4 states, 3 states have (on average 26.666666666666668) internal successors, (80), 4 states have internal predecessors, (80), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-10-11 23:44:02,144 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 23:44:02,144 INFO L93 Difference]: Finished difference Result 2909 states and 4120 transitions. [2024-10-11 23:44:02,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 23:44:02,145 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 26.666666666666668) internal successors, (80), 4 states have internal predecessors, (80), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 87 [2024-10-11 23:44:02,145 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 23:44:02,153 INFO L225 Difference]: With dead ends: 2909 [2024-10-11 23:44:02,153 INFO L226 Difference]: Without dead ends: 2908 [2024-10-11 23:44:02,154 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 88 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2024-10-11 23:44:02,154 INFO L432 NwaCegarLoop]: 578 mSDtfsCounter, 1121 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1121 SdHoareTripleChecker+Valid, 578 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 23:44:02,155 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1121 Valid, 578 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 23:44:02,157 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2908 states. [2024-10-11 23:44:02,205 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2908 to 2908. [2024-10-11 23:44:02,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2908 states, 2795 states have (on average 1.4071556350626118) internal successors, (3933), 2814 states have internal predecessors, (3933), 80 states have call successors, (80), 24 states have call predecessors, (80), 20 states have return successors, (102), 69 states have call predecessors, (102), 80 states have call successors, (102) [2024-10-11 23:44:02,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2908 states to 2908 states and 4115 transitions. [2024-10-11 23:44:02,213 INFO L78 Accepts]: Start accepts. Automaton has 2908 states and 4115 transitions. Word has length 87 [2024-10-11 23:44:02,213 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 23:44:02,214 INFO L471 AbstractCegarLoop]: Abstraction has 2908 states and 4115 transitions. [2024-10-11 23:44:02,214 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 26.666666666666668) internal successors, (80), 4 states have internal predecessors, (80), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-10-11 23:44:02,214 INFO L276 IsEmpty]: Start isEmpty. Operand 2908 states and 4115 transitions. [2024-10-11 23:44:02,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2024-10-11 23:44:02,214 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 23:44:02,215 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 23:44:02,229 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-10-11 23:44:02,416 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-10-11 23:44:02,416 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting alt_bzeroErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-10-11 23:44:02,417 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 23:44:02,417 INFO L85 PathProgramCache]: Analyzing trace with hash 1206611317, now seen corresponding path program 1 times [2024-10-11 23:44:02,417 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 23:44:02,417 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [893510141] [2024-10-11 23:44:02,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 23:44:02,418 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 23:44:02,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 23:44:02,653 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-10-11 23:44:02,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 23:44:02,666 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-11 23:44:02,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 23:44:02,688 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-10-11 23:44:02,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 23:44:02,695 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-10-11 23:44:02,695 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 23:44:02,695 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [893510141] [2024-10-11 23:44:02,695 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [893510141] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 23:44:02,695 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [684907703] [2024-10-11 23:44:02,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 23:44:02,696 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 23:44:02,696 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 23:44:02,697 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 23:44:02,698 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-10-11 23:44:02,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 23:44:02,938 INFO L255 TraceCheckSpWp]: Trace formula consists of 573 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-10-11 23:44:02,940 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 23:44:03,051 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 23:44:03,051 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 23:44:03,189 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-10-11 23:44:03,189 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [684907703] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 23:44:03,189 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-11 23:44:03,190 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 4, 5] total 13 [2024-10-11 23:44:03,190 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1163333003] [2024-10-11 23:44:03,190 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-11 23:44:03,190 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-10-11 23:44:03,190 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 23:44:03,191 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-10-11 23:44:03,191 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=124, Unknown=0, NotChecked=0, Total=182 [2024-10-11 23:44:03,191 INFO L87 Difference]: Start difference. First operand 2908 states and 4115 transitions. Second operand has 14 states, 13 states have (on average 17.076923076923077) internal successors, (222), 12 states have internal predecessors, (222), 5 states have call successors, (11), 8 states have call predecessors, (11), 5 states have return successors, (9), 5 states have call predecessors, (9), 5 states have call successors, (9) [2024-10-11 23:44:03,924 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 23:44:03,924 INFO L93 Difference]: Finished difference Result 5818 states and 8241 transitions. [2024-10-11 23:44:03,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-10-11 23:44:03,925 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 17.076923076923077) internal successors, (222), 12 states have internal predecessors, (222), 5 states have call successors, (11), 8 states have call predecessors, (11), 5 states have return successors, (9), 5 states have call predecessors, (9), 5 states have call successors, (9) Word has length 88 [2024-10-11 23:44:03,925 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 23:44:03,940 INFO L225 Difference]: With dead ends: 5818 [2024-10-11 23:44:03,940 INFO L226 Difference]: Without dead ends: 5817 [2024-10-11 23:44:03,942 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 206 GetRequests, 180 SyntacticMatches, 1 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 128 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=231, Invalid=471, Unknown=0, NotChecked=0, Total=702 [2024-10-11 23:44:03,943 INFO L432 NwaCegarLoop]: 545 mSDtfsCounter, 2434 mSDsluCounter, 4172 mSDsCounter, 0 mSdLazyCounter, 394 mSolverCounterSat, 260 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2453 SdHoareTripleChecker+Valid, 4717 SdHoareTripleChecker+Invalid, 654 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 260 IncrementalHoareTripleChecker+Valid, 394 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-11 23:44:03,943 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2453 Valid, 4717 Invalid, 654 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [260 Valid, 394 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-11 23:44:03,947 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5817 states. [2024-10-11 23:44:04,047 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5817 to 5384. [2024-10-11 23:44:04,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5384 states, 5162 states have (on average 1.408175125920186) internal successors, (7269), 5186 states have internal predecessors, (7269), 159 states have call successors, (159), 56 states have call predecessors, (159), 50 states have return successors, (197), 141 states have call predecessors, (197), 159 states have call successors, (197) [2024-10-11 23:44:04,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5384 states to 5384 states and 7625 transitions. [2024-10-11 23:44:04,063 INFO L78 Accepts]: Start accepts. Automaton has 5384 states and 7625 transitions. Word has length 88 [2024-10-11 23:44:04,063 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 23:44:04,064 INFO L471 AbstractCegarLoop]: Abstraction has 5384 states and 7625 transitions. [2024-10-11 23:44:04,064 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 17.076923076923077) internal successors, (222), 12 states have internal predecessors, (222), 5 states have call successors, (11), 8 states have call predecessors, (11), 5 states have return successors, (9), 5 states have call predecessors, (9), 5 states have call successors, (9) [2024-10-11 23:44:04,064 INFO L276 IsEmpty]: Start isEmpty. Operand 5384 states and 7625 transitions. [2024-10-11 23:44:04,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2024-10-11 23:44:04,065 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 23:44:04,065 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 23:44:04,084 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-10-11 23:44:04,265 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2024-10-11 23:44:04,266 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-10-11 23:44:04,266 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 23:44:04,266 INFO L85 PathProgramCache]: Analyzing trace with hash -2038052979, now seen corresponding path program 1 times [2024-10-11 23:44:04,266 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 23:44:04,266 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2139491893] [2024-10-11 23:44:04,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 23:44:04,266 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 23:44:04,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 23:44:04,515 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-10-11 23:44:04,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 23:44:04,532 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-11 23:44:04,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 23:44:04,538 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-10-11 23:44:04,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 23:44:04,544 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-11 23:44:04,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 23:44:04,549 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-10-11 23:44:04,549 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 23:44:04,549 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2139491893] [2024-10-11 23:44:04,550 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2139491893] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 23:44:04,550 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 23:44:04,550 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-11 23:44:04,550 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1380094362] [2024-10-11 23:44:04,550 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 23:44:04,550 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 23:44:04,550 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 23:44:04,551 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 23:44:04,551 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-11 23:44:04,551 INFO L87 Difference]: Start difference. First operand 5384 states and 7625 transitions. Second operand has 6 states, 5 states have (on average 19.0) internal successors, (95), 4 states have internal predecessors, (95), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-10-11 23:44:05,100 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 23:44:05,101 INFO L93 Difference]: Finished difference Result 7610 states and 10842 transitions. [2024-10-11 23:44:05,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-11 23:44:05,101 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 19.0) internal successors, (95), 4 states have internal predecessors, (95), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 112 [2024-10-11 23:44:05,102 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 23:44:05,131 INFO L225 Difference]: With dead ends: 7610 [2024-10-11 23:44:05,131 INFO L226 Difference]: Without dead ends: 7608 [2024-10-11 23:44:05,133 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-10-11 23:44:05,134 INFO L432 NwaCegarLoop]: 535 mSDtfsCounter, 481 mSDsluCounter, 1961 mSDsCounter, 0 mSdLazyCounter, 383 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 492 SdHoareTripleChecker+Valid, 2496 SdHoareTripleChecker+Invalid, 438 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 383 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-11 23:44:05,134 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [492 Valid, 2496 Invalid, 438 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 383 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-11 23:44:05,139 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7608 states. [2024-10-11 23:44:05,286 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7608 to 5552. [2024-10-11 23:44:05,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5552 states, 5321 states have (on average 1.4033076489381695) internal successors, (7467), 5346 states have internal predecessors, (7467), 168 states have call successors, (168), 56 states have call predecessors, (168), 50 states have return successors, (209), 149 states have call predecessors, (209), 168 states have call successors, (209) [2024-10-11 23:44:05,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5552 states to 5552 states and 7844 transitions. [2024-10-11 23:44:05,309 INFO L78 Accepts]: Start accepts. Automaton has 5552 states and 7844 transitions. Word has length 112 [2024-10-11 23:44:05,310 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 23:44:05,310 INFO L471 AbstractCegarLoop]: Abstraction has 5552 states and 7844 transitions. [2024-10-11 23:44:05,310 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 19.0) internal successors, (95), 4 states have internal predecessors, (95), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-10-11 23:44:05,310 INFO L276 IsEmpty]: Start isEmpty. Operand 5552 states and 7844 transitions. [2024-10-11 23:44:05,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2024-10-11 23:44:05,312 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 23:44:05,312 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 23:44:05,312 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-10-11 23:44:05,312 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-10-11 23:44:05,313 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 23:44:05,313 INFO L85 PathProgramCache]: Analyzing trace with hash -1963744125, now seen corresponding path program 1 times [2024-10-11 23:44:05,313 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 23:44:05,313 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1634159198] [2024-10-11 23:44:05,313 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 23:44:05,313 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 23:44:05,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 23:44:05,529 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-10-11 23:44:05,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 23:44:05,575 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-11 23:44:05,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 23:44:05,578 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-10-11 23:44:05,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 23:44:05,582 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-11 23:44:05,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 23:44:05,585 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 5 proven. 5 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-10-11 23:44:05,585 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 23:44:05,585 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1634159198] [2024-10-11 23:44:05,585 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1634159198] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 23:44:05,585 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1028384940] [2024-10-11 23:44:05,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 23:44:05,586 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 23:44:05,586 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 23:44:05,587 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 23:44:05,588 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-10-11 23:44:05,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 23:44:05,885 INFO L255 TraceCheckSpWp]: Trace formula consists of 757 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-10-11 23:44:05,888 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 23:44:05,980 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-10-11 23:44:05,980 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 23:44:05,980 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1028384940] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 23:44:05,980 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-11 23:44:05,980 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [8] total 12 [2024-10-11 23:44:05,981 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [963189852] [2024-10-11 23:44:05,981 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 23:44:05,981 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-11 23:44:05,981 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 23:44:05,981 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-11 23:44:05,982 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2024-10-11 23:44:05,982 INFO L87 Difference]: Start difference. First operand 5552 states and 7844 transitions. Second operand has 7 states, 7 states have (on average 15.142857142857142) internal successors, (106), 5 states have internal predecessors, (106), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2024-10-11 23:44:06,226 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 23:44:06,226 INFO L93 Difference]: Finished difference Result 10599 states and 15025 transitions. [2024-10-11 23:44:06,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-11 23:44:06,227 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 15.142857142857142) internal successors, (106), 5 states have internal predecessors, (106), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) Word has length 118 [2024-10-11 23:44:06,227 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 23:44:06,238 INFO L225 Difference]: With dead ends: 10599 [2024-10-11 23:44:06,238 INFO L226 Difference]: Without dead ends: 5354 [2024-10-11 23:44:06,246 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 133 GetRequests, 120 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=165, Unknown=0, NotChecked=0, Total=210 [2024-10-11 23:44:06,246 INFO L432 NwaCegarLoop]: 561 mSDtfsCounter, 82 mSDsluCounter, 2705 mSDsCounter, 0 mSdLazyCounter, 239 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 83 SdHoareTripleChecker+Valid, 3266 SdHoareTripleChecker+Invalid, 254 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 239 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 23:44:06,247 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [83 Valid, 3266 Invalid, 254 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 239 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 23:44:06,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5354 states. [2024-10-11 23:44:06,344 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5354 to 5354. [2024-10-11 23:44:06,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5354 states, 5140 states have (on average 1.4071984435797666) internal successors, (7233), 5163 states have internal predecessors, (7233), 157 states have call successors, (157), 50 states have call predecessors, (157), 44 states have return successors, (192), 140 states have call predecessors, (192), 157 states have call successors, (192) [2024-10-11 23:44:06,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5354 states to 5354 states and 7582 transitions. [2024-10-11 23:44:06,363 INFO L78 Accepts]: Start accepts. Automaton has 5354 states and 7582 transitions. Word has length 118 [2024-10-11 23:44:06,363 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 23:44:06,363 INFO L471 AbstractCegarLoop]: Abstraction has 5354 states and 7582 transitions. [2024-10-11 23:44:06,363 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.142857142857142) internal successors, (106), 5 states have internal predecessors, (106), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2024-10-11 23:44:06,363 INFO L276 IsEmpty]: Start isEmpty. Operand 5354 states and 7582 transitions. [2024-10-11 23:44:06,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2024-10-11 23:44:06,364 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 23:44:06,364 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, 1, 1, 1] [2024-10-11 23:44:06,380 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-10-11 23:44:06,565 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2024-10-11 23:44:06,566 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-10-11 23:44:06,566 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 23:44:06,566 INFO L85 PathProgramCache]: Analyzing trace with hash -793576872, now seen corresponding path program 1 times [2024-10-11 23:44:06,566 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 23:44:06,566 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1207975116] [2024-10-11 23:44:06,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 23:44:06,567 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 23:44:06,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 23:44:06,977 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-10-11 23:44:06,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 23:44:06,982 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-11 23:44:06,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 23:44:06,989 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-11 23:44:06,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 23:44:07,038 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-11 23:44:07,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 23:44:07,046 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-10-11 23:44:07,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 23:44:07,050 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-10-11 23:44:07,050 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 23:44:07,050 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1207975116] [2024-10-11 23:44:07,050 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1207975116] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 23:44:07,050 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [634185594] [2024-10-11 23:44:07,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 23:44:07,050 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 23:44:07,050 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 23:44:07,052 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 23:44:07,053 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-10-11 23:44:07,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 23:44:07,381 INFO L255 TraceCheckSpWp]: Trace formula consists of 767 conjuncts, 29 conjuncts are in the unsatisfiable core [2024-10-11 23:44:07,385 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 23:44:07,389 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-10-11 23:44:07,407 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-10-11 23:44:07,425 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2024-10-11 23:44:08,020 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-10-11 23:44:08,020 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 23:44:08,021 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [634185594] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 23:44:08,021 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-11 23:44:08,021 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [7] total 16 [2024-10-11 23:44:08,021 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [19735541] [2024-10-11 23:44:08,021 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 23:44:08,021 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-10-11 23:44:08,021 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 23:44:08,022 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-10-11 23:44:08,022 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=201, Unknown=0, NotChecked=0, Total=240 [2024-10-11 23:44:08,022 INFO L87 Difference]: Start difference. First operand 5354 states and 7582 transitions. Second operand has 11 states, 11 states have (on average 9.545454545454545) internal successors, (105), 10 states have internal predecessors, (105), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-10-11 23:44:09,226 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 23:44:09,227 INFO L93 Difference]: Finished difference Result 12733 states and 18114 transitions. [2024-10-11 23:44:09,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-10-11 23:44:09,228 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 9.545454545454545) internal successors, (105), 10 states have internal predecessors, (105), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 123 [2024-10-11 23:44:09,228 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 23:44:09,241 INFO L225 Difference]: With dead ends: 12733 [2024-10-11 23:44:09,242 INFO L226 Difference]: Without dead ends: 7424 [2024-10-11 23:44:09,250 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 144 GetRequests, 121 SyntacticMatches, 1 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=105, Invalid=447, Unknown=0, NotChecked=0, Total=552 [2024-10-11 23:44:09,250 INFO L432 NwaCegarLoop]: 560 mSDtfsCounter, 652 mSDsluCounter, 2876 mSDsCounter, 0 mSdLazyCounter, 776 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 664 SdHoareTripleChecker+Valid, 3436 SdHoareTripleChecker+Invalid, 783 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 776 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-10-11 23:44:09,251 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [664 Valid, 3436 Invalid, 783 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 776 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-10-11 23:44:09,257 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7424 states. [2024-10-11 23:44:09,375 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7424 to 5354. [2024-10-11 23:44:09,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5354 states, 5140 states have (on average 1.4070038910505838) internal successors, (7232), 5163 states have internal predecessors, (7232), 157 states have call successors, (157), 50 states have call predecessors, (157), 44 states have return successors, (192), 140 states have call predecessors, (192), 157 states have call successors, (192) [2024-10-11 23:44:09,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5354 states to 5354 states and 7581 transitions. [2024-10-11 23:44:09,397 INFO L78 Accepts]: Start accepts. Automaton has 5354 states and 7581 transitions. Word has length 123 [2024-10-11 23:44:09,398 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 23:44:09,398 INFO L471 AbstractCegarLoop]: Abstraction has 5354 states and 7581 transitions. [2024-10-11 23:44:09,398 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 9.545454545454545) internal successors, (105), 10 states have internal predecessors, (105), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-10-11 23:44:09,399 INFO L276 IsEmpty]: Start isEmpty. Operand 5354 states and 7581 transitions. [2024-10-11 23:44:09,399 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2024-10-11 23:44:09,399 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 23:44:09,400 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 23:44:09,414 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2024-10-11 23:44:09,603 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,8 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 23:44:09,604 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-10-11 23:44:09,604 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 23:44:09,604 INFO L85 PathProgramCache]: Analyzing trace with hash 817925879, now seen corresponding path program 1 times [2024-10-11 23:44:09,604 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 23:44:09,604 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1151990600] [2024-10-11 23:44:09,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 23:44:09,605 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 23:44:09,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 23:44:09,921 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-10-11 23:44:09,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 23:44:09,926 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-11 23:44:09,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 23:44:09,935 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-11 23:44:09,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 23:44:09,982 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-10-11 23:44:09,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 23:44:09,990 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-10-11 23:44:09,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 23:44:09,998 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-10-11 23:44:10,001 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 23:44:10,001 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1151990600] [2024-10-11 23:44:10,001 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1151990600] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 23:44:10,001 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1487133635] [2024-10-11 23:44:10,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 23:44:10,002 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 23:44:10,002 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 23:44:10,007 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 23:44:10,008 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-10-11 23:44:10,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 23:44:10,499 INFO L255 TraceCheckSpWp]: Trace formula consists of 768 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-10-11 23:44:10,502 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 23:44:10,574 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 23:44:10,574 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 23:44:10,574 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1487133635] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 23:44:10,574 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-11 23:44:10,574 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [7] total 13 [2024-10-11 23:44:10,574 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [395844161] [2024-10-11 23:44:10,574 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 23:44:10,575 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-11 23:44:10,575 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 23:44:10,575 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-11 23:44:10,575 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=131, Unknown=0, NotChecked=0, Total=156 [2024-10-11 23:44:10,576 INFO L87 Difference]: Start difference. First operand 5354 states and 7581 transitions. Second operand has 9 states, 8 states have (on average 14.25) internal successors, (114), 9 states have internal predecessors, (114), 3 states have call successors, (5), 2 states have call predecessors, (5), 4 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2024-10-11 23:44:10,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 23:44:10,762 INFO L93 Difference]: Finished difference Result 8150 states and 11516 transitions. [2024-10-11 23:44:10,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-10-11 23:44:10,763 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 14.25) internal successors, (114), 9 states have internal predecessors, (114), 3 states have call successors, (5), 2 states have call predecessors, (5), 4 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) Word has length 124 [2024-10-11 23:44:10,763 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 23:44:10,770 INFO L225 Difference]: With dead ends: 8150 [2024-10-11 23:44:10,771 INFO L226 Difference]: Without dead ends: 2887 [2024-10-11 23:44:10,778 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 139 GetRequests, 126 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=177, Unknown=0, NotChecked=0, Total=210 [2024-10-11 23:44:10,778 INFO L432 NwaCegarLoop]: 572 mSDtfsCounter, 13 mSDsluCounter, 3966 mSDsCounter, 0 mSdLazyCounter, 177 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 4538 SdHoareTripleChecker+Invalid, 183 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 177 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 23:44:10,779 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 4538 Invalid, 183 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 177 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 23:44:10,780 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2887 states. [2024-10-11 23:44:10,850 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2887 to 2885. [2024-10-11 23:44:10,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2885 states, 2747 states have (on average 1.3971605387695667) internal successors, (3838), 2763 states have internal predecessors, (3838), 86 states have call successors, (86), 42 states have call predecessors, (86), 39 states have return successors, (97), 79 states have call predecessors, (97), 86 states have call successors, (97) [2024-10-11 23:44:10,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2885 states to 2885 states and 4021 transitions. [2024-10-11 23:44:10,859 INFO L78 Accepts]: Start accepts. Automaton has 2885 states and 4021 transitions. Word has length 124 [2024-10-11 23:44:10,860 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 23:44:10,860 INFO L471 AbstractCegarLoop]: Abstraction has 2885 states and 4021 transitions. [2024-10-11 23:44:10,860 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 14.25) internal successors, (114), 9 states have internal predecessors, (114), 3 states have call successors, (5), 2 states have call predecessors, (5), 4 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2024-10-11 23:44:10,860 INFO L276 IsEmpty]: Start isEmpty. Operand 2885 states and 4021 transitions. [2024-10-11 23:44:10,861 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2024-10-11 23:44:10,861 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 23:44:10,861 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 23:44:10,878 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-10-11 23:44:11,065 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2024-10-11 23:44:11,065 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-10-11 23:44:11,066 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 23:44:11,066 INFO L85 PathProgramCache]: Analyzing trace with hash 1317827799, now seen corresponding path program 1 times [2024-10-11 23:44:11,066 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 23:44:11,066 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [57369806] [2024-10-11 23:44:11,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 23:44:11,066 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 23:44:11,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 23:44:11,449 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-10-11 23:44:11,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 23:44:11,453 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-11 23:44:11,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 23:44:11,462 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-11 23:44:11,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 23:44:11,529 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-10-11 23:44:11,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 23:44:11,534 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-10-11 23:44:11,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 23:44:11,539 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 5 proven. 8 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-10-11 23:44:11,539 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 23:44:11,539 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [57369806] [2024-10-11 23:44:11,539 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [57369806] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 23:44:11,539 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1099131615] [2024-10-11 23:44:11,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 23:44:11,540 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 23:44:11,540 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 23:44:11,541 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 23:44:11,543 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-10-11 23:44:11,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 23:44:11,897 INFO L255 TraceCheckSpWp]: Trace formula consists of 798 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-10-11 23:44:11,900 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 23:44:11,986 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 19 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-11 23:44:11,987 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 23:44:12,102 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 5 proven. 8 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-10-11 23:44:12,104 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1099131615] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 23:44:12,104 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-11 23:44:12,104 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 10, 6] total 18 [2024-10-11 23:44:12,104 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1586757299] [2024-10-11 23:44:12,104 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-11 23:44:12,105 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-10-11 23:44:12,105 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 23:44:12,106 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-10-11 23:44:12,106 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=253, Unknown=0, NotChecked=0, Total=306 [2024-10-11 23:44:12,106 INFO L87 Difference]: Start difference. First operand 2885 states and 4021 transitions. Second operand has 18 states, 16 states have (on average 8.8125) internal successors, (141), 16 states have internal predecessors, (141), 3 states have call successors, (12), 4 states have call predecessors, (12), 6 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2024-10-11 23:44:13,239 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 23:44:13,239 INFO L93 Difference]: Finished difference Result 5725 states and 8016 transitions. [2024-10-11 23:44:13,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2024-10-11 23:44:13,240 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 16 states have (on average 8.8125) internal successors, (141), 16 states have internal predecessors, (141), 3 states have call successors, (12), 4 states have call predecessors, (12), 6 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) Word has length 126 [2024-10-11 23:44:13,240 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 23:44:13,246 INFO L225 Difference]: With dead ends: 5725 [2024-10-11 23:44:13,246 INFO L226 Difference]: Without dead ends: 2945 [2024-10-11 23:44:13,249 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 293 GetRequests, 254 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 317 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=258, Invalid=1382, Unknown=0, NotChecked=0, Total=1640 [2024-10-11 23:44:13,250 INFO L432 NwaCegarLoop]: 553 mSDtfsCounter, 89 mSDsluCounter, 6935 mSDsCounter, 0 mSdLazyCounter, 780 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 89 SdHoareTripleChecker+Valid, 7488 SdHoareTripleChecker+Invalid, 823 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 780 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-10-11 23:44:13,250 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [89 Valid, 7488 Invalid, 823 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 780 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-10-11 23:44:13,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2945 states. [2024-10-11 23:44:13,307 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2945 to 2923. [2024-10-11 23:44:13,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2923 states, 2784 states have (on average 1.3976293103448276) internal successors, (3891), 2797 states have internal predecessors, (3891), 86 states have call successors, (86), 46 states have call predecessors, (86), 40 states have return successors, (93), 79 states have call predecessors, (93), 86 states have call successors, (93) [2024-10-11 23:44:13,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2923 states to 2923 states and 4070 transitions. [2024-10-11 23:44:13,314 INFO L78 Accepts]: Start accepts. Automaton has 2923 states and 4070 transitions. Word has length 126 [2024-10-11 23:44:13,315 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 23:44:13,315 INFO L471 AbstractCegarLoop]: Abstraction has 2923 states and 4070 transitions. [2024-10-11 23:44:13,315 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 16 states have (on average 8.8125) internal successors, (141), 16 states have internal predecessors, (141), 3 states have call successors, (12), 4 states have call predecessors, (12), 6 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2024-10-11 23:44:13,315 INFO L276 IsEmpty]: Start isEmpty. Operand 2923 states and 4070 transitions. [2024-10-11 23:44:13,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2024-10-11 23:44:13,316 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 23:44:13,316 INFO L215 NwaCegarLoop]: trace histogram [6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 23:44:13,331 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-10-11 23:44:13,516 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15,10 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 23:44:13,516 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-10-11 23:44:13,517 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 23:44:13,517 INFO L85 PathProgramCache]: Analyzing trace with hash -838588521, now seen corresponding path program 2 times [2024-10-11 23:44:13,517 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 23:44:13,517 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [683346096] [2024-10-11 23:44:13,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 23:44:13,517 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 23:44:13,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 23:44:13,948 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-10-11 23:44:13,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 23:44:13,955 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-11 23:44:13,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 23:44:13,964 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-11 23:44:13,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 23:44:14,162 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-10-11 23:44:14,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 23:44:14,169 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-10-11 23:44:14,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 23:44:14,185 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 5 proven. 28 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-10-11 23:44:14,188 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 23:44:14,188 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [683346096] [2024-10-11 23:44:14,188 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [683346096] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 23:44:14,188 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1327062157] [2024-10-11 23:44:14,189 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-11 23:44:14,189 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 23:44:14,189 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 23:44:14,190 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 23:44:14,192 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-10-11 23:44:14,494 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-10-11 23:44:14,494 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-11 23:44:14,496 INFO L255 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-11 23:44:14,499 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 23:44:14,504 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2024-10-11 23:44:14,513 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2024-10-11 23:44:14,513 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 23:44:14,513 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1327062157] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 23:44:14,513 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-11 23:44:14,513 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [11] total 12 [2024-10-11 23:44:14,513 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2063903897] [2024-10-11 23:44:14,513 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 23:44:14,514 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 23:44:14,514 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 23:44:14,514 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 23:44:14,514 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2024-10-11 23:44:14,515 INFO L87 Difference]: Start difference. First operand 2923 states and 4070 transitions. Second operand has 3 states, 2 states have (on average 52.0) internal successors, (104), 3 states have internal predecessors, (104), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-10-11 23:44:14,575 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 23:44:14,575 INFO L93 Difference]: Finished difference Result 2923 states and 4070 transitions. [2024-10-11 23:44:14,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 23:44:14,576 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 52.0) internal successors, (104), 3 states have internal predecessors, (104), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 130 [2024-10-11 23:44:14,576 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 23:44:14,581 INFO L225 Difference]: With dead ends: 2923 [2024-10-11 23:44:14,582 INFO L226 Difference]: Without dead ends: 2922 [2024-10-11 23:44:14,582 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 147 GetRequests, 137 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2024-10-11 23:44:14,583 INFO L432 NwaCegarLoop]: 578 mSDtfsCounter, 1 mSDsluCounter, 577 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 1155 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 23:44:14,583 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 1155 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 23:44:14,584 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2922 states. [2024-10-11 23:44:14,641 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2922 to 2922. [2024-10-11 23:44:14,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2922 states, 2784 states have (on average 1.3954741379310345) internal successors, (3885), 2796 states have internal predecessors, (3885), 86 states have call successors, (86), 46 states have call predecessors, (86), 40 states have return successors, (93), 79 states have call predecessors, (93), 86 states have call successors, (93) [2024-10-11 23:44:14,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2922 states to 2922 states and 4064 transitions. [2024-10-11 23:44:14,650 INFO L78 Accepts]: Start accepts. Automaton has 2922 states and 4064 transitions. Word has length 130 [2024-10-11 23:44:14,650 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 23:44:14,650 INFO L471 AbstractCegarLoop]: Abstraction has 2922 states and 4064 transitions. [2024-10-11 23:44:14,651 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 52.0) internal successors, (104), 3 states have internal predecessors, (104), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-10-11 23:44:14,651 INFO L276 IsEmpty]: Start isEmpty. Operand 2922 states and 4064 transitions. [2024-10-11 23:44:14,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2024-10-11 23:44:14,651 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 23:44:14,651 INFO L215 NwaCegarLoop]: trace histogram [6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 23:44:14,665 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2024-10-11 23:44:14,852 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2024-10-11 23:44:14,853 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-10-11 23:44:14,853 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 23:44:14,853 INFO L85 PathProgramCache]: Analyzing trace with hash -226440272, now seen corresponding path program 1 times [2024-10-11 23:44:14,853 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 23:44:14,854 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1025710235] [2024-10-11 23:44:14,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 23:44:14,854 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 23:44:14,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 23:44:15,208 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-10-11 23:44:15,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 23:44:15,212 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-11 23:44:15,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 23:44:15,221 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-11 23:44:15,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 23:44:15,365 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-10-11 23:44:15,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 23:44:15,371 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-10-11 23:44:15,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 23:44:15,378 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 6 proven. 28 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-10-11 23:44:15,378 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 23:44:15,378 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1025710235] [2024-10-11 23:44:15,379 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1025710235] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 23:44:15,379 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1503637325] [2024-10-11 23:44:15,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 23:44:15,379 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 23:44:15,379 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 23:44:15,380 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 23:44:15,381 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-10-11 23:44:15,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 23:44:15,734 INFO L255 TraceCheckSpWp]: Trace formula consists of 859 conjuncts, 29 conjuncts are in the unsatisfiable core [2024-10-11 23:44:15,737 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 23:44:15,903 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 31 proven. 10 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-10-11 23:44:15,905 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 23:44:16,115 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 6 proven. 28 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-10-11 23:44:16,115 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1503637325] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 23:44:16,115 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-11 23:44:16,115 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 14, 9] total 28 [2024-10-11 23:44:16,115 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1738635157] [2024-10-11 23:44:16,115 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-11 23:44:16,116 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2024-10-11 23:44:16,116 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 23:44:16,116 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2024-10-11 23:44:16,117 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=130, Invalid=626, Unknown=0, NotChecked=0, Total=756 [2024-10-11 23:44:16,117 INFO L87 Difference]: Start difference. First operand 2922 states and 4064 transitions. Second operand has 28 states, 26 states have (on average 5.884615384615385) internal successors, (153), 26 states have internal predecessors, (153), 3 states have call successors, (12), 4 states have call predecessors, (12), 6 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2024-10-11 23:44:17,746 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 23:44:17,746 INFO L93 Difference]: Finished difference Result 5803 states and 8117 transitions. [2024-10-11 23:44:17,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2024-10-11 23:44:17,747 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 26 states have (on average 5.884615384615385) internal successors, (153), 26 states have internal predecessors, (153), 3 states have call successors, (12), 4 states have call predecessors, (12), 6 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) Word has length 131 [2024-10-11 23:44:17,747 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 23:44:17,754 INFO L225 Difference]: With dead ends: 5803 [2024-10-11 23:44:17,757 INFO L226 Difference]: Without dead ends: 2983 [2024-10-11 23:44:17,762 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 314 GetRequests, 257 SyntacticMatches, 0 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 687 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=534, Invalid=2888, Unknown=0, NotChecked=0, Total=3422 [2024-10-11 23:44:17,763 INFO L432 NwaCegarLoop]: 540 mSDtfsCounter, 117 mSDsluCounter, 7812 mSDsCounter, 0 mSdLazyCounter, 1217 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 117 SdHoareTripleChecker+Valid, 8352 SdHoareTripleChecker+Invalid, 1269 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 1217 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-10-11 23:44:17,763 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [117 Valid, 8352 Invalid, 1269 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 1217 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-10-11 23:44:17,765 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2983 states. [2024-10-11 23:44:17,835 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2983 to 2967. [2024-10-11 23:44:17,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2967 states, 2829 states have (on average 1.3902439024390243) internal successors, (3933), 2841 states have internal predecessors, (3933), 86 states have call successors, (86), 46 states have call predecessors, (86), 40 states have return successors, (93), 79 states have call predecessors, (93), 86 states have call successors, (93) [2024-10-11 23:44:17,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2967 states to 2967 states and 4112 transitions. [2024-10-11 23:44:17,844 INFO L78 Accepts]: Start accepts. Automaton has 2967 states and 4112 transitions. Word has length 131 [2024-10-11 23:44:17,844 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 23:44:17,844 INFO L471 AbstractCegarLoop]: Abstraction has 2967 states and 4112 transitions. [2024-10-11 23:44:17,845 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 26 states have (on average 5.884615384615385) internal successors, (153), 26 states have internal predecessors, (153), 3 states have call successors, (12), 4 states have call predecessors, (12), 6 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2024-10-11 23:44:17,845 INFO L276 IsEmpty]: Start isEmpty. Operand 2967 states and 4112 transitions. [2024-10-11 23:44:17,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2024-10-11 23:44:17,845 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 23:44:17,846 INFO L215 NwaCegarLoop]: trace histogram [15, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 23:44:17,861 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2024-10-11 23:44:18,046 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2024-10-11 23:44:18,047 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-10-11 23:44:18,047 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 23:44:18,047 INFO L85 PathProgramCache]: Analyzing trace with hash 1298997753, now seen corresponding path program 2 times [2024-10-11 23:44:18,047 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 23:44:18,047 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [284622363] [2024-10-11 23:44:18,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 23:44:18,047 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 23:44:18,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 23:44:18,583 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-10-11 23:44:18,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 23:44:18,587 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-11 23:44:18,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 23:44:18,594 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-11 23:44:18,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 23:44:18,921 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-10-11 23:44:18,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 23:44:18,925 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-10-11 23:44:18,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 23:44:18,935 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 6 proven. 124 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-10-11 23:44:18,935 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 23:44:18,935 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [284622363] [2024-10-11 23:44:18,935 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [284622363] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 23:44:18,935 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1834674077] [2024-10-11 23:44:18,935 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-11 23:44:18,936 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 23:44:18,936 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 23:44:18,937 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 23:44:18,938 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-10-11 23:44:19,873 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-10-11 23:44:19,873 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-11 23:44:19,878 INFO L255 TraceCheckSpWp]: Trace formula consists of 994 conjuncts, 35 conjuncts are in the unsatisfiable core [2024-10-11 23:44:19,882 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 23:44:19,885 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-10-11 23:44:19,920 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-10-11 23:44:19,941 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2024-10-11 23:44:20,646 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 146 trivial. 0 not checked. [2024-10-11 23:44:20,647 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 23:44:20,647 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1834674077] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 23:44:20,647 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-11 23:44:20,647 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [17] total 28 [2024-10-11 23:44:20,647 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [936000113] [2024-10-11 23:44:20,647 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 23:44:20,647 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-10-11 23:44:20,647 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 23:44:20,648 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-10-11 23:44:20,648 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=675, Unknown=0, NotChecked=0, Total=756 [2024-10-11 23:44:20,648 INFO L87 Difference]: Start difference. First operand 2967 states and 4112 transitions. Second operand has 13 states, 13 states have (on average 8.307692307692308) internal successors, (108), 12 states have internal predecessors, (108), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-10-11 23:44:22,267 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 23:44:22,268 INFO L93 Difference]: Finished difference Result 7065 states and 9865 transitions. [2024-10-11 23:44:22,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-10-11 23:44:22,268 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 8.307692307692308) internal successors, (108), 12 states have internal predecessors, (108), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 140 [2024-10-11 23:44:22,268 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 23:44:22,277 INFO L225 Difference]: With dead ends: 7065 [2024-10-11 23:44:22,277 INFO L226 Difference]: Without dead ends: 4148 [2024-10-11 23:44:22,280 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 172 GetRequests, 136 SyntacticMatches, 1 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=176, Invalid=1156, Unknown=0, NotChecked=0, Total=1332 [2024-10-11 23:44:22,281 INFO L432 NwaCegarLoop]: 530 mSDtfsCounter, 716 mSDsluCounter, 3801 mSDsCounter, 0 mSdLazyCounter, 1073 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 728 SdHoareTripleChecker+Valid, 4331 SdHoareTripleChecker+Invalid, 1083 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 1073 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-10-11 23:44:22,281 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [728 Valid, 4331 Invalid, 1083 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 1073 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-10-11 23:44:22,283 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4148 states. [2024-10-11 23:44:22,401 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4148 to 3043. [2024-10-11 23:44:22,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3043 states, 2905 states have (on average 1.3865748709122203) internal successors, (4028), 2917 states have internal predecessors, (4028), 86 states have call successors, (86), 46 states have call predecessors, (86), 40 states have return successors, (93), 79 states have call predecessors, (93), 86 states have call successors, (93) [2024-10-11 23:44:22,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3043 states to 3043 states and 4207 transitions. [2024-10-11 23:44:22,412 INFO L78 Accepts]: Start accepts. Automaton has 3043 states and 4207 transitions. Word has length 140 [2024-10-11 23:44:22,412 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 23:44:22,412 INFO L471 AbstractCegarLoop]: Abstraction has 3043 states and 4207 transitions. [2024-10-11 23:44:22,412 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 8.307692307692308) internal successors, (108), 12 states have internal predecessors, (108), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-10-11 23:44:22,412 INFO L276 IsEmpty]: Start isEmpty. Operand 3043 states and 4207 transitions. [2024-10-11 23:44:22,413 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2024-10-11 23:44:22,414 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 23:44:22,414 INFO L215 NwaCegarLoop]: trace histogram [15, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 23:44:22,438 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2024-10-11 23:44:22,614 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,13 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 23:44:22,614 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-10-11 23:44:22,615 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 23:44:22,615 INFO L85 PathProgramCache]: Analyzing trace with hash -1473784498, now seen corresponding path program 1 times [2024-10-11 23:44:22,615 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 23:44:22,615 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1805147643] [2024-10-11 23:44:22,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 23:44:22,615 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 23:44:22,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 23:44:22,908 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-10-11 23:44:22,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 23:44:22,914 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-11 23:44:22,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 23:44:22,928 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-10-11 23:44:22,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 23:44:22,945 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-11 23:44:22,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 23:44:22,949 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-10-11 23:44:22,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 23:44:22,959 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 146 trivial. 0 not checked. [2024-10-11 23:44:22,960 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 23:44:22,960 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1805147643] [2024-10-11 23:44:22,960 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1805147643] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 23:44:22,960 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 23:44:22,960 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-10-11 23:44:22,960 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2107249185] [2024-10-11 23:44:22,961 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 23:44:22,961 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-11 23:44:22,961 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 23:44:22,962 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-11 23:44:22,962 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-10-11 23:44:22,962 INFO L87 Difference]: Start difference. First operand 3043 states and 4207 transitions. Second operand has 9 states, 9 states have (on average 12.11111111111111) internal successors, (109), 7 states have internal predecessors, (109), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-11 23:44:23,613 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 23:44:23,613 INFO L93 Difference]: Finished difference Result 6062 states and 8398 transitions. [2024-10-11 23:44:23,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-11 23:44:23,614 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.11111111111111) internal successors, (109), 7 states have internal predecessors, (109), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 141 [2024-10-11 23:44:23,614 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 23:44:23,621 INFO L225 Difference]: With dead ends: 6062 [2024-10-11 23:44:23,621 INFO L226 Difference]: Without dead ends: 3078 [2024-10-11 23:44:23,625 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2024-10-11 23:44:23,626 INFO L432 NwaCegarLoop]: 535 mSDtfsCounter, 53 mSDsluCounter, 3229 mSDsCounter, 0 mSdLazyCounter, 837 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 3764 SdHoareTripleChecker+Invalid, 867 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 837 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-10-11 23:44:23,626 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [54 Valid, 3764 Invalid, 867 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 837 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-10-11 23:44:23,628 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3078 states. [2024-10-11 23:44:23,755 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3078 to 3071. [2024-10-11 23:44:23,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3071 states, 2933 states have (on average 1.3852710535288102) internal successors, (4063), 2945 states have internal predecessors, (4063), 86 states have call successors, (86), 46 states have call predecessors, (86), 40 states have return successors, (93), 79 states have call predecessors, (93), 86 states have call successors, (93) [2024-10-11 23:44:23,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3071 states to 3071 states and 4242 transitions. [2024-10-11 23:44:23,764 INFO L78 Accepts]: Start accepts. Automaton has 3071 states and 4242 transitions. Word has length 141 [2024-10-11 23:44:23,764 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 23:44:23,764 INFO L471 AbstractCegarLoop]: Abstraction has 3071 states and 4242 transitions. [2024-10-11 23:44:23,765 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.11111111111111) internal successors, (109), 7 states have internal predecessors, (109), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-11 23:44:23,765 INFO L276 IsEmpty]: Start isEmpty. Operand 3071 states and 4242 transitions. [2024-10-11 23:44:23,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2024-10-11 23:44:23,766 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 23:44:23,766 INFO L215 NwaCegarLoop]: trace histogram [15, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 23:44:23,766 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-10-11 23:44:23,767 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-10-11 23:44:23,767 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 23:44:23,767 INFO L85 PathProgramCache]: Analyzing trace with hash -1520772203, now seen corresponding path program 1 times [2024-10-11 23:44:23,767 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 23:44:23,767 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1076698905] [2024-10-11 23:44:23,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 23:44:23,768 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 23:44:23,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 23:44:24,053 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-10-11 23:44:24,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 23:44:24,058 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-11 23:44:24,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 23:44:24,069 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-10-11 23:44:24,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 23:44:24,085 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-11 23:44:24,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 23:44:24,089 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-10-11 23:44:24,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 23:44:24,099 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 146 trivial. 0 not checked. [2024-10-11 23:44:24,099 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 23:44:24,099 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1076698905] [2024-10-11 23:44:24,099 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1076698905] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 23:44:24,099 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 23:44:24,099 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-11 23:44:24,099 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2011783659] [2024-10-11 23:44:24,100 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 23:44:24,100 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-11 23:44:24,100 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 23:44:24,100 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-11 23:44:24,100 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-10-11 23:44:24,101 INFO L87 Difference]: Start difference. First operand 3071 states and 4242 transitions. Second operand has 8 states, 8 states have (on average 13.625) internal successors, (109), 6 states have internal predecessors, (109), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-11 23:44:24,635 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 23:44:24,635 INFO L93 Difference]: Finished difference Result 6107 states and 8453 transitions. [2024-10-11 23:44:24,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-11 23:44:24,635 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 13.625) internal successors, (109), 6 states have internal predecessors, (109), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 141 [2024-10-11 23:44:24,635 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 23:44:24,642 INFO L225 Difference]: With dead ends: 6107 [2024-10-11 23:44:24,642 INFO L226 Difference]: Without dead ends: 3092 [2024-10-11 23:44:24,646 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-10-11 23:44:24,647 INFO L432 NwaCegarLoop]: 547 mSDtfsCounter, 48 mSDsluCounter, 2793 mSDsCounter, 0 mSdLazyCounter, 695 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 3340 SdHoareTripleChecker+Invalid, 725 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 695 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-11 23:44:24,647 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [49 Valid, 3340 Invalid, 725 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 695 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-11 23:44:24,648 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3092 states. [2024-10-11 23:44:24,716 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3092 to 3092. [2024-10-11 23:44:24,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3092 states, 2954 states have (on average 1.3825321597833446) internal successors, (4084), 2966 states have internal predecessors, (4084), 86 states have call successors, (86), 46 states have call predecessors, (86), 40 states have return successors, (93), 79 states have call predecessors, (93), 86 states have call successors, (93) [2024-10-11 23:44:24,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3092 states to 3092 states and 4263 transitions. [2024-10-11 23:44:24,723 INFO L78 Accepts]: Start accepts. Automaton has 3092 states and 4263 transitions. Word has length 141 [2024-10-11 23:44:24,723 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 23:44:24,723 INFO L471 AbstractCegarLoop]: Abstraction has 3092 states and 4263 transitions. [2024-10-11 23:44:24,724 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 13.625) internal successors, (109), 6 states have internal predecessors, (109), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-11 23:44:24,724 INFO L276 IsEmpty]: Start isEmpty. Operand 3092 states and 4263 transitions. [2024-10-11 23:44:24,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2024-10-11 23:44:24,725 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 23:44:24,725 INFO L215 NwaCegarLoop]: trace histogram [15, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 23:44:24,725 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-10-11 23:44:24,725 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-10-11 23:44:24,725 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 23:44:24,726 INFO L85 PathProgramCache]: Analyzing trace with hash 1234982829, now seen corresponding path program 1 times [2024-10-11 23:44:24,726 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 23:44:24,726 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1302389023] [2024-10-11 23:44:24,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 23:44:24,726 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 23:44:24,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 23:44:25,243 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-11 23:44:25,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 23:44:25,248 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-11 23:44:25,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 23:44:25,257 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-10-11 23:44:25,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 23:44:25,552 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-10-11 23:44:25,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 23:44:25,556 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-10-11 23:44:25,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 23:44:25,569 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 6 proven. 124 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-10-11 23:44:25,569 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 23:44:25,570 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1302389023] [2024-10-11 23:44:25,570 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1302389023] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 23:44:25,570 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1792707246] [2024-10-11 23:44:25,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 23:44:25,570 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 23:44:25,570 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 23:44:25,571 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 23:44:25,572 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-10-11 23:44:26,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 23:44:26,010 INFO L255 TraceCheckSpWp]: Trace formula consists of 996 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-10-11 23:44:26,014 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 23:44:26,163 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 146 trivial. 0 not checked. [2024-10-11 23:44:26,163 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 23:44:26,163 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1792707246] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 23:44:26,163 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-11 23:44:26,164 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [17] total 22 [2024-10-11 23:44:26,164 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1812650732] [2024-10-11 23:44:26,164 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 23:44:26,164 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-11 23:44:26,164 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 23:44:26,164 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-11 23:44:26,165 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=411, Unknown=0, NotChecked=0, Total=462 [2024-10-11 23:44:26,165 INFO L87 Difference]: Start difference. First operand 3092 states and 4263 transitions. Second operand has 7 states, 7 states have (on average 15.714285714285714) internal successors, (110), 7 states have internal predecessors, (110), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-10-11 23:44:26,444 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 23:44:26,444 INFO L93 Difference]: Finished difference Result 6153 states and 8500 transitions. [2024-10-11 23:44:26,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-11 23:44:26,444 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 15.714285714285714) internal successors, (110), 7 states have internal predecessors, (110), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 142 [2024-10-11 23:44:26,445 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 23:44:26,453 INFO L225 Difference]: With dead ends: 6153 [2024-10-11 23:44:26,453 INFO L226 Difference]: Without dead ends: 3113 [2024-10-11 23:44:26,457 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 167 GetRequests, 145 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=59, Invalid=493, Unknown=0, NotChecked=0, Total=552 [2024-10-11 23:44:26,458 INFO L432 NwaCegarLoop]: 562 mSDtfsCounter, 43 mSDsluCounter, 2511 mSDsCounter, 0 mSdLazyCounter, 426 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 3073 SdHoareTripleChecker+Invalid, 431 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 426 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-11 23:44:26,459 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 3073 Invalid, 431 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 426 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-11 23:44:26,460 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3113 states. [2024-10-11 23:44:26,529 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3113 to 3030. [2024-10-11 23:44:26,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3030 states, 2892 states have (on average 1.3817427385892116) internal successors, (3996), 2904 states have internal predecessors, (3996), 86 states have call successors, (86), 46 states have call predecessors, (86), 40 states have return successors, (93), 79 states have call predecessors, (93), 86 states have call successors, (93) [2024-10-11 23:44:26,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3030 states to 3030 states and 4175 transitions. [2024-10-11 23:44:26,536 INFO L78 Accepts]: Start accepts. Automaton has 3030 states and 4175 transitions. Word has length 142 [2024-10-11 23:44:26,536 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 23:44:26,536 INFO L471 AbstractCegarLoop]: Abstraction has 3030 states and 4175 transitions. [2024-10-11 23:44:26,537 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.714285714285714) internal successors, (110), 7 states have internal predecessors, (110), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-10-11 23:44:26,537 INFO L276 IsEmpty]: Start isEmpty. Operand 3030 states and 4175 transitions. [2024-10-11 23:44:26,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2024-10-11 23:44:26,538 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 23:44:26,538 INFO L215 NwaCegarLoop]: trace histogram [15, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 23:44:26,554 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2024-10-11 23:44:26,738 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,14 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 23:44:26,739 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-10-11 23:44:26,739 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 23:44:26,739 INFO L85 PathProgramCache]: Analyzing trace with hash -950353898, now seen corresponding path program 1 times [2024-10-11 23:44:26,739 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 23:44:26,739 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1579369651] [2024-10-11 23:44:26,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 23:44:26,740 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 23:44:26,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 23:44:27,260 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-11 23:44:27,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 23:44:27,266 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-11 23:44:27,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 23:44:27,275 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-10-11 23:44:27,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 23:44:27,619 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-10-11 23:44:27,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 23:44:27,624 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-10-11 23:44:27,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 23:44:27,635 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 6 proven. 124 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-10-11 23:44:27,635 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 23:44:27,636 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1579369651] [2024-10-11 23:44:27,636 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1579369651] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 23:44:27,636 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1256330593] [2024-10-11 23:44:27,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 23:44:27,636 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 23:44:27,636 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 23:44:27,638 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 23:44:27,640 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-10-11 23:44:28,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 23:44:28,130 INFO L255 TraceCheckSpWp]: Trace formula consists of 993 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-10-11 23:44:28,132 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 23:44:40,587 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 146 trivial. 0 not checked. [2024-10-11 23:44:40,587 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 23:44:40,587 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1256330593] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 23:44:40,587 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-11 23:44:40,587 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [17] total 22 [2024-10-11 23:44:40,587 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2069909655] [2024-10-11 23:44:40,587 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 23:44:40,588 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-11 23:44:40,588 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 23:44:40,589 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-11 23:44:40,589 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=411, Unknown=0, NotChecked=0, Total=462 [2024-10-11 23:44:40,589 INFO L87 Difference]: Start difference. First operand 3030 states and 4175 transitions. Second operand has 7 states, 7 states have (on average 15.714285714285714) internal successors, (110), 7 states have internal predecessors, (110), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-10-11 23:44:42,541 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.62s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-10-11 23:44:46,421 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.95s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-10-11 23:44:46,693 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 23:44:46,693 INFO L93 Difference]: Finished difference Result 6031 states and 8330 transitions. [2024-10-11 23:44:46,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-11 23:44:46,694 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 15.714285714285714) internal successors, (110), 7 states have internal predecessors, (110), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 142 [2024-10-11 23:44:46,694 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 23:44:46,701 INFO L225 Difference]: With dead ends: 6031 [2024-10-11 23:44:46,701 INFO L226 Difference]: Without dead ends: 3065 [2024-10-11 23:44:46,705 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 165 GetRequests, 145 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=51, Invalid=411, Unknown=0, NotChecked=0, Total=462 [2024-10-11 23:44:46,706 INFO L432 NwaCegarLoop]: 560 mSDtfsCounter, 12 mSDsluCounter, 2485 mSDsCounter, 0 mSdLazyCounter, 442 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 3045 SdHoareTripleChecker+Invalid, 443 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 442 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.0s IncrementalHoareTripleChecker+Time [2024-10-11 23:44:46,706 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 3045 Invalid, 443 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 442 Invalid, 0 Unknown, 0 Unchecked, 6.0s Time] [2024-10-11 23:44:46,708 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3065 states. [2024-10-11 23:44:46,780 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3065 to 3030. [2024-10-11 23:44:46,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3030 states, 2892 states have (on average 1.3817427385892116) internal successors, (3996), 2904 states have internal predecessors, (3996), 86 states have call successors, (86), 46 states have call predecessors, (86), 40 states have return successors, (93), 79 states have call predecessors, (93), 86 states have call successors, (93) [2024-10-11 23:44:46,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3030 states to 3030 states and 4175 transitions. [2024-10-11 23:44:46,789 INFO L78 Accepts]: Start accepts. Automaton has 3030 states and 4175 transitions. Word has length 142 [2024-10-11 23:44:46,789 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 23:44:46,789 INFO L471 AbstractCegarLoop]: Abstraction has 3030 states and 4175 transitions. [2024-10-11 23:44:46,790 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.714285714285714) internal successors, (110), 7 states have internal predecessors, (110), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-10-11 23:44:46,790 INFO L276 IsEmpty]: Start isEmpty. Operand 3030 states and 4175 transitions. [2024-10-11 23:44:46,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2024-10-11 23:44:46,790 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 23:44:46,791 INFO L215 NwaCegarLoop]: trace histogram [15, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 23:44:46,815 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2024-10-11 23:44:46,991 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2024-10-11 23:44:46,992 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-10-11 23:44:46,992 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 23:44:46,992 INFO L85 PathProgramCache]: Analyzing trace with hash -170657270, now seen corresponding path program 1 times [2024-10-11 23:44:46,992 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 23:44:46,992 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1534260423] [2024-10-11 23:44:46,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 23:44:46,992 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 23:44:47,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 23:44:47,583 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-10-11 23:44:47,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 23:44:47,587 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-11 23:44:47,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 23:44:47,595 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-10-11 23:44:47,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 23:44:47,921 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-11 23:44:47,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 23:44:47,926 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-11 23:44:47,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 23:44:47,935 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 6 proven. 124 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-10-11 23:44:47,935 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 23:44:47,935 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1534260423] [2024-10-11 23:44:47,935 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1534260423] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 23:44:47,935 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1935514358] [2024-10-11 23:44:47,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 23:44:47,935 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 23:44:47,935 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 23:44:47,937 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 23:44:47,937 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2024-10-11 23:44:48,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 23:44:48,618 INFO L255 TraceCheckSpWp]: Trace formula consists of 995 conjuncts, 38 conjuncts are in the unsatisfiable core [2024-10-11 23:44:48,621 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 23:44:48,971 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 82 proven. 55 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-10-11 23:44:48,971 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 23:44:49,455 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 6 proven. 124 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-10-11 23:44:49,455 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1935514358] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 23:44:49,455 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-11 23:44:49,456 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 19, 15] total 45 [2024-10-11 23:44:49,456 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [230472292] [2024-10-11 23:44:49,456 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-11 23:44:49,456 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 45 states [2024-10-11 23:44:49,456 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 23:44:49,457 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 45 interpolants. [2024-10-11 23:44:49,458 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=386, Invalid=1594, Unknown=0, NotChecked=0, Total=1980 [2024-10-11 23:44:49,458 INFO L87 Difference]: Start difference. First operand 3030 states and 4175 transitions. Second operand has 45 states, 43 states have (on average 4.023255813953488) internal successors, (173), 43 states have internal predecessors, (173), 3 states have call successors, (12), 4 states have call predecessors, (12), 6 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2024-10-11 23:44:53,894 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 23:44:53,894 INFO L93 Difference]: Finished difference Result 6061 states and 8438 transitions. [2024-10-11 23:44:53,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2024-10-11 23:44:53,895 INFO L78 Accepts]: Start accepts. Automaton has has 45 states, 43 states have (on average 4.023255813953488) internal successors, (173), 43 states have internal predecessors, (173), 3 states have call successors, (12), 4 states have call predecessors, (12), 6 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) Word has length 144 [2024-10-11 23:44:53,895 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 23:44:53,905 INFO L225 Difference]: With dead ends: 6061 [2024-10-11 23:44:53,905 INFO L226 Difference]: Without dead ends: 3148 [2024-10-11 23:44:53,912 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 364 GetRequests, 272 SyntacticMatches, 0 SemanticMatches, 92 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1952 ImplicationChecksByTransitivity, 4.0s TimeCoverageRelationStatistics Valid=1540, Invalid=7202, Unknown=0, NotChecked=0, Total=8742 [2024-10-11 23:44:53,913 INFO L432 NwaCegarLoop]: 551 mSDtfsCounter, 120 mSDsluCounter, 10149 mSDsCounter, 0 mSdLazyCounter, 1725 mSolverCounterSat, 72 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 120 SdHoareTripleChecker+Valid, 10700 SdHoareTripleChecker+Invalid, 1797 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 72 IncrementalHoareTripleChecker+Valid, 1725 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-10-11 23:44:53,913 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [120 Valid, 10700 Invalid, 1797 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [72 Valid, 1725 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-10-11 23:44:53,915 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3148 states. [2024-10-11 23:44:54,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3148 to 3120. [2024-10-11 23:44:54,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3120 states, 2982 states have (on average 1.3722334004024146) internal successors, (4092), 2994 states have internal predecessors, (4092), 86 states have call successors, (86), 46 states have call predecessors, (86), 40 states have return successors, (93), 79 states have call predecessors, (93), 86 states have call successors, (93) [2024-10-11 23:44:54,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3120 states to 3120 states and 4271 transitions. [2024-10-11 23:44:54,089 INFO L78 Accepts]: Start accepts. Automaton has 3120 states and 4271 transitions. Word has length 144 [2024-10-11 23:44:54,089 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 23:44:54,090 INFO L471 AbstractCegarLoop]: Abstraction has 3120 states and 4271 transitions. [2024-10-11 23:44:54,090 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 45 states, 43 states have (on average 4.023255813953488) internal successors, (173), 43 states have internal predecessors, (173), 3 states have call successors, (12), 4 states have call predecessors, (12), 6 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2024-10-11 23:44:54,090 INFO L276 IsEmpty]: Start isEmpty. Operand 3120 states and 4271 transitions. [2024-10-11 23:44:54,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2024-10-11 23:44:54,091 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 23:44:54,091 INFO L215 NwaCegarLoop]: trace histogram [33, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 23:44:54,116 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2024-10-11 23:44:54,292 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2024-10-11 23:44:54,292 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-10-11 23:44:54,293 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 23:44:54,293 INFO L85 PathProgramCache]: Analyzing trace with hash 267688362, now seen corresponding path program 2 times [2024-10-11 23:44:54,293 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 23:44:54,293 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1593712024] [2024-10-11 23:44:54,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 23:44:54,293 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 23:44:54,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 23:44:55,176 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-10-11 23:44:55,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 23:44:55,181 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-11 23:44:55,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 23:44:55,191 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-10-11 23:44:55,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 23:44:55,993 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-10-11 23:44:55,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 23:44:55,997 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-10-11 23:44:56,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 23:44:56,022 INFO L134 CoverageAnalysis]: Checked inductivity of 611 backedges. 6 proven. 532 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked. [2024-10-11 23:44:56,022 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 23:44:56,022 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1593712024] [2024-10-11 23:44:56,022 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1593712024] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 23:44:56,022 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2005200904] [2024-10-11 23:44:56,022 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-11 23:44:56,022 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 23:44:56,022 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 23:44:56,024 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 23:44:56,025 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2024-10-11 23:44:56,605 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-10-11 23:44:56,606 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-11 23:44:56,613 INFO L255 TraceCheckSpWp]: Trace formula consists of 1265 conjuncts, 72 conjuncts are in the unsatisfiable core [2024-10-11 23:44:56,616 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 23:44:57,635 INFO L134 CoverageAnalysis]: Checked inductivity of 611 backedges. 17 proven. 534 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-10-11 23:44:57,635 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 23:44:58,590 INFO L134 CoverageAnalysis]: Checked inductivity of 611 backedges. 285 proven. 66 refuted. 0 times theorem prover too weak. 260 trivial. 0 not checked. [2024-10-11 23:44:58,591 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2005200904] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 23:44:58,591 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-11 23:44:58,591 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [29, 32, 16] total 72 [2024-10-11 23:44:58,591 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [888905459] [2024-10-11 23:44:58,591 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-11 23:44:58,591 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 72 states [2024-10-11 23:44:58,592 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 23:44:58,592 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 72 interpolants. [2024-10-11 23:44:58,594 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=525, Invalid=4587, Unknown=0, NotChecked=0, Total=5112 [2024-10-11 23:44:58,594 INFO L87 Difference]: Start difference. First operand 3120 states and 4271 transitions. Second operand has 72 states, 69 states have (on average 2.8115942028985508) internal successors, (194), 70 states have internal predecessors, (194), 3 states have call successors, (10), 3 states have call predecessors, (10), 7 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2024-10-11 23:45:13,573 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 23:45:13,573 INFO L93 Difference]: Finished difference Result 6226 states and 8615 transitions. [2024-10-11 23:45:13,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 84 states. [2024-10-11 23:45:13,574 INFO L78 Accepts]: Start accepts. Automaton has has 72 states, 69 states have (on average 2.8115942028985508) internal successors, (194), 70 states have internal predecessors, (194), 3 states have call successors, (10), 3 states have call predecessors, (10), 7 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 162 [2024-10-11 23:45:13,574 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 23:45:13,583 INFO L225 Difference]: With dead ends: 6226 [2024-10-11 23:45:13,583 INFO L226 Difference]: Without dead ends: 3241 [2024-10-11 23:45:13,591 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 445 GetRequests, 294 SyntacticMatches, 0 SemanticMatches, 151 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5469 ImplicationChecksByTransitivity, 14.7s TimeCoverageRelationStatistics Valid=2989, Invalid=20267, Unknown=0, NotChecked=0, Total=23256 [2024-10-11 23:45:13,592 INFO L432 NwaCegarLoop]: 550 mSDtfsCounter, 269 mSDsluCounter, 22569 mSDsCounter, 0 mSdLazyCounter, 3809 mSolverCounterSat, 162 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 269 SdHoareTripleChecker+Valid, 23119 SdHoareTripleChecker+Invalid, 3971 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 162 IncrementalHoareTripleChecker+Valid, 3809 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-10-11 23:45:13,592 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [269 Valid, 23119 Invalid, 3971 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [162 Valid, 3809 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-10-11 23:45:13,594 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3241 states. [2024-10-11 23:45:13,706 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3241 to 3180. [2024-10-11 23:45:13,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3180 states, 3042 states have (on average 1.3655489809335963) internal successors, (4154), 3053 states have internal predecessors, (4154), 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) [2024-10-11 23:45:13,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3180 states to 3180 states and 4333 transitions.