./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_BER_test6-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 4fc63b2a Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1663e583-c03b-42aa-bc11-00eb94932ad1/bin/uautomizer-verify-4GaUIPS5ZU/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1663e583-c03b-42aa-bc11-00eb94932ad1/bin/uautomizer-verify-4GaUIPS5ZU/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1663e583-c03b-42aa-bc11-00eb94932ad1/bin/uautomizer-verify-4GaUIPS5ZU/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1663e583-c03b-42aa-bc11-00eb94932ad1/bin/uautomizer-verify-4GaUIPS5ZU/config/AutomizerReach.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_BER_test6-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1663e583-c03b-42aa-bc11-00eb94932ad1/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1663e583-c03b-42aa-bc11-00eb94932ad1/bin/uautomizer-verify-4GaUIPS5ZU --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash d952a2ac4207d7207b65e88d163e23d18bb81c0593196a835eab903a81ce4e5c --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4fc63b2 [2024-10-31 22:06:12,790 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-31 22:06:12,868 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1663e583-c03b-42aa-bc11-00eb94932ad1/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-10-31 22:06:12,875 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-31 22:06:12,876 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-31 22:06:12,911 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-31 22:06:12,912 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-31 22:06:12,913 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-31 22:06:12,913 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-31 22:06:12,916 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-31 22:06:12,916 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-31 22:06:12,917 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-31 22:06:12,918 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-31 22:06:12,918 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-31 22:06:12,921 INFO L153 SettingsManager]: * Use SBE=true [2024-10-31 22:06:12,922 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-31 22:06:12,922 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-31 22:06:12,923 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-31 22:06:12,923 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-31 22:06:12,923 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-31 22:06:12,923 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-31 22:06:12,924 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-31 22:06:12,927 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-31 22:06:12,927 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-31 22:06:12,928 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-31 22:06:12,928 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-10-31 22:06:12,928 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-31 22:06:12,928 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-31 22:06:12,929 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-31 22:06:12,929 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-31 22:06:12,929 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-31 22:06:12,930 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-31 22:06:12,930 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-31 22:06:12,930 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-31 22:06:12,930 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-31 22:06:12,931 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-31 22:06:12,931 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-31 22:06:12,931 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-31 22:06:12,931 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-31 22:06:12,932 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-31 22:06:12,932 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-31 22:06:12,934 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-31 22:06:12,934 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-31 22:06:12,934 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-31 22:06:12,934 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:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1663e583-c03b-42aa-bc11-00eb94932ad1/bin/uautomizer-verify-4GaUIPS5ZU/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1663e583-c03b-42aa-bc11-00eb94932ad1/bin/uautomizer-verify-4GaUIPS5ZU Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d952a2ac4207d7207b65e88d163e23d18bb81c0593196a835eab903a81ce4e5c [2024-10-31 22:06:13,266 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-31 22:06:13,298 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-31 22:06:13,301 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-31 22:06:13,302 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-31 22:06:13,302 INFO L274 PluginConnector]: CDTParser initialized [2024-10-31 22:06:13,304 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1663e583-c03b-42aa-bc11-00eb94932ad1/bin/uautomizer-verify-4GaUIPS5ZU/../../sv-benchmarks/c/uthash-2.0.2/uthash_BER_test6-2.i Unable to find full path for "g++" [2024-10-31 22:06:15,376 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-31 22:06:15,771 INFO L384 CDTParser]: Found 1 translation units. [2024-10-31 22:06:15,772 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1663e583-c03b-42aa-bc11-00eb94932ad1/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test6-2.i [2024-10-31 22:06:15,796 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1663e583-c03b-42aa-bc11-00eb94932ad1/bin/uautomizer-verify-4GaUIPS5ZU/data/503d49276/b7537ffb38e147789c50bfa93b47a910/FLAG94768eea9 [2024-10-31 22:06:15,815 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1663e583-c03b-42aa-bc11-00eb94932ad1/bin/uautomizer-verify-4GaUIPS5ZU/data/503d49276/b7537ffb38e147789c50bfa93b47a910 [2024-10-31 22:06:15,817 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-31 22:06:15,820 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-31 22:06:15,822 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-31 22:06:15,822 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-31 22:06:15,834 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-31 22:06:15,834 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 10:06:15" (1/1) ... [2024-10-31 22:06:15,836 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6473b328 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:06:15, skipping insertion in model container [2024-10-31 22:06:15,836 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 10:06:15" (1/1) ... [2024-10-31 22:06:15,921 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-31 22:06:16,764 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 22:06:16,788 INFO L200 MainTranslator]: Completed pre-run [2024-10-31 22:06:16,984 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 22:06:17,104 INFO L204 MainTranslator]: Completed translation [2024-10-31 22:06:17,104 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:06:17 WrapperNode [2024-10-31 22:06:17,104 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-31 22:06:17,106 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-31 22:06:17,106 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-31 22:06:17,106 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-31 22:06:17,115 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:06:17" (1/1) ... [2024-10-31 22:06:17,169 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:06:17" (1/1) ... [2024-10-31 22:06:17,263 INFO L138 Inliner]: procedures = 282, calls = 353, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 1657 [2024-10-31 22:06:17,263 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-31 22:06:17,264 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-31 22:06:17,264 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-31 22:06:17,264 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-31 22:06:17,279 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:06:17" (1/1) ... [2024-10-31 22:06:17,280 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:06:17" (1/1) ... [2024-10-31 22:06:17,301 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:06:17" (1/1) ... [2024-10-31 22:06:17,451 INFO L175 MemorySlicer]: Split 318 memory accesses to 4 slices as follows [2, 12, 270, 34]. 85 percent of accesses are in the largest equivalence class. The 12 initializations are split as follows [2, 10, 0, 0]. The 62 writes are split as follows [0, 1, 57, 4]. [2024-10-31 22:06:17,452 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:06:17" (1/1) ... [2024-10-31 22:06:17,452 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:06:17" (1/1) ... [2024-10-31 22:06:17,510 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:06:17" (1/1) ... [2024-10-31 22:06:17,538 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:06:17" (1/1) ... [2024-10-31 22:06:17,548 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:06:17" (1/1) ... [2024-10-31 22:06:17,556 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:06:17" (1/1) ... [2024-10-31 22:06:17,571 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-31 22:06:17,576 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-31 22:06:17,576 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-31 22:06:17,577 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-31 22:06:17,578 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:06:17" (1/1) ... [2024-10-31 22:06:17,590 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-31 22:06:17,611 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1663e583-c03b-42aa-bc11-00eb94932ad1/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:06:17,642 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1663e583-c03b-42aa-bc11-00eb94932ad1/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-31 22:06:17,645 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1663e583-c03b-42aa-bc11-00eb94932ad1/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-31 22:06:17,692 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2024-10-31 22:06:17,692 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2024-10-31 22:06:17,692 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-10-31 22:06:17,693 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-10-31 22:06:17,693 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-10-31 22:06:17,693 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-10-31 22:06:17,693 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-10-31 22:06:17,693 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-10-31 22:06:17,695 INFO L130 BoogieDeclarations]: Found specification of procedure alt_bzero [2024-10-31 22:06:17,696 INFO L138 BoogieDeclarations]: Found implementation of procedure alt_bzero [2024-10-31 22:06:17,696 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-10-31 22:06:17,697 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-10-31 22:06:17,697 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-10-31 22:06:17,697 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-10-31 22:06:17,697 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-10-31 22:06:17,697 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-10-31 22:06:17,697 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-10-31 22:06:17,698 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-10-31 22:06:17,698 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-10-31 22:06:17,699 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-10-31 22:06:17,699 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-10-31 22:06:17,699 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-31 22:06:17,700 INFO L130 BoogieDeclarations]: Found specification of procedure alt_malloc [2024-10-31 22:06:17,700 INFO L138 BoogieDeclarations]: Found implementation of procedure alt_malloc [2024-10-31 22:06:17,700 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-10-31 22:06:17,701 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-10-31 22:06:17,701 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-10-31 22:06:17,701 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-10-31 22:06:17,701 INFO L130 BoogieDeclarations]: Found specification of procedure alt_free [2024-10-31 22:06:17,702 INFO L138 BoogieDeclarations]: Found implementation of procedure alt_free [2024-10-31 22:06:17,702 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-31 22:06:17,702 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-10-31 22:06:17,703 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-10-31 22:06:17,703 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-10-31 22:06:17,703 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-31 22:06:17,703 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-31 22:06:18,054 INFO L238 CfgBuilder]: Building ICFG [2024-10-31 22:06:18,056 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-31 22:06:20,104 INFO L? ?]: Removed 376 outVars from TransFormulas that were not future-live. [2024-10-31 22:06:20,104 INFO L287 CfgBuilder]: Performing block encoding [2024-10-31 22:06:20,160 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-31 22:06:20,161 INFO L316 CfgBuilder]: Removed 72 assume(true) statements. [2024-10-31 22:06:20,161 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:06:20 BoogieIcfgContainer [2024-10-31 22:06:20,161 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-31 22:06:20,163 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-31 22:06:20,164 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-31 22:06:20,168 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-31 22:06:20,168 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.10 10:06:15" (1/3) ... [2024-10-31 22:06:20,169 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52c7ddb4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.10 10:06:20, skipping insertion in model container [2024-10-31 22:06:20,169 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:06:17" (2/3) ... [2024-10-31 22:06:20,170 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52c7ddb4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.10 10:06:20, skipping insertion in model container [2024-10-31 22:06:20,170 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:06:20" (3/3) ... [2024-10-31 22:06:20,171 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_BER_test6-2.i [2024-10-31 22:06:20,188 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-31 22:06:20,188 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 14 error locations. [2024-10-31 22:06:20,332 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-31 22:06:20,349 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;@7bf4b948, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-31 22:06:20,350 INFO L334 AbstractCegarLoop]: Starting to check reachability of 14 error locations. [2024-10-31 22:06:20,358 INFO L276 IsEmpty]: Start isEmpty. Operand has 501 states, 462 states have (on average 1.606060606060606) internal successors, (742), 479 states have internal predecessors, (742), 20 states have call successors, (20), 5 states have call predecessors, (20), 5 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-10-31 22:06:20,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-10-31 22:06:20,364 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:06:20,365 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:06:20,366 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)] === [2024-10-31 22:06:20,371 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:06:20,371 INFO L85 PathProgramCache]: Analyzing trace with hash 1635847084, now seen corresponding path program 1 times [2024-10-31 22:06:20,383 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:06:20,383 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1760498678] [2024-10-31 22:06:20,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:06:20,384 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:06:20,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:06:20,631 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:06:20,631 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:06:20,632 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1760498678] [2024-10-31 22:06:20,633 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1760498678] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:06:20,633 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:06:20,633 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:06:20,635 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2090515070] [2024-10-31 22:06:20,636 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:06:20,641 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-31 22:06:20,641 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:06:20,684 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-31 22:06:20,684 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-31 22:06:20,688 INFO L87 Difference]: Start difference. First operand has 501 states, 462 states have (on average 1.606060606060606) internal successors, (742), 479 states have internal predecessors, (742), 20 states have call successors, (20), 5 states have call predecessors, (20), 5 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) Second operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:06:20,853 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:06:20,853 INFO L93 Difference]: Finished difference Result 995 states and 1569 transitions. [2024-10-31 22:06:20,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-31 22:06:20,856 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2024-10-31 22:06:20,857 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:06:20,875 INFO L225 Difference]: With dead ends: 995 [2024-10-31 22:06:20,879 INFO L226 Difference]: Without dead ends: 487 [2024-10-31 22:06:20,898 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 [2024-10-31 22:06:20,906 INFO L432 NwaCegarLoop]: 695 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 695 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-31 22:06:20,914 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 695 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-31 22:06:20,948 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 487 states. [2024-10-31 22:06:21,002 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 487 to 487. [2024-10-31 22:06:21,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 487 states, 454 states have (on average 1.4383259911894273) internal successors, (653), 468 states have internal predecessors, (653), 15 states have call successors, (15), 4 states have call predecessors, (15), 4 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-10-31 22:06:21,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 487 states to 487 states and 683 transitions. [2024-10-31 22:06:21,012 INFO L78 Accepts]: Start accepts. Automaton has 487 states and 683 transitions. Word has length 8 [2024-10-31 22:06:21,012 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:06:21,012 INFO L471 AbstractCegarLoop]: Abstraction has 487 states and 683 transitions. [2024-10-31 22:06:21,013 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:06:21,013 INFO L276 IsEmpty]: Start isEmpty. Operand 487 states and 683 transitions. [2024-10-31 22:06:21,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-10-31 22:06:21,016 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:06:21,016 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:06:21,017 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-31 22:06:21,017 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)] === [2024-10-31 22:06:21,018 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:06:21,018 INFO L85 PathProgramCache]: Analyzing trace with hash 1635849006, now seen corresponding path program 1 times [2024-10-31 22:06:21,018 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:06:21,018 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2084234687] [2024-10-31 22:06:21,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:06:21,020 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:06:21,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-31 22:06:21,096 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1730220929] [2024-10-31 22:06:21,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:06:21,101 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:06:21,101 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1663e583-c03b-42aa-bc11-00eb94932ad1/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:06:21,104 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1663e583-c03b-42aa-bc11-00eb94932ad1/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 22:06:21,106 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1663e583-c03b-42aa-bc11-00eb94932ad1/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-31 22:06:21,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:06:21,347 INFO L255 TraceCheckSpWp]: Trace formula consists of 120 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-10-31 22:06:21,353 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:06:21,424 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 [2024-10-31 22:06:21,506 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:06:21,507 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-31 22:06:21,508 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:06:21,509 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2084234687] [2024-10-31 22:06:21,510 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-31 22:06:21,510 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1730220929] [2024-10-31 22:06:21,511 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1730220929] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:06:21,512 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:06:21,514 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-31 22:06:21,515 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1125385453] [2024-10-31 22:06:21,515 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:06:21,516 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-31 22:06:21,516 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:06:21,517 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-31 22:06:21,517 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-31 22:06:21,517 INFO L87 Difference]: Start difference. First operand 487 states and 683 transitions. Second operand has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:06:21,793 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:06:21,795 INFO L93 Difference]: Finished difference Result 940 states and 1333 transitions. [2024-10-31 22:06:21,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-31 22:06:21,796 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2024-10-31 22:06:21,796 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:06:21,801 INFO L225 Difference]: With dead ends: 940 [2024-10-31 22:06:21,802 INFO L226 Difference]: Without dead ends: 938 [2024-10-31 22:06:21,803 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-31 22:06:21,806 INFO L432 NwaCegarLoop]: 659 mSDtfsCounter, 614 mSDsluCounter, 1302 mSDsCounter, 0 mSdLazyCounter, 86 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 628 SdHoareTripleChecker+Valid, 1961 SdHoareTripleChecker+Invalid, 89 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 86 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-31 22:06:21,807 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [628 Valid, 1961 Invalid, 89 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 86 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-31 22:06:21,811 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 938 states. [2024-10-31 22:06:21,858 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 938 to 494. [2024-10-31 22:06:21,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 494 states, 461 states have (on average 1.4338394793926248) internal successors, (661), 475 states have internal predecessors, (661), 15 states have call successors, (15), 4 states have call predecessors, (15), 4 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-10-31 22:06:21,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 494 states to 494 states and 691 transitions. [2024-10-31 22:06:21,870 INFO L78 Accepts]: Start accepts. Automaton has 494 states and 691 transitions. Word has length 8 [2024-10-31 22:06:21,870 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:06:21,871 INFO L471 AbstractCegarLoop]: Abstraction has 494 states and 691 transitions. [2024-10-31 22:06:21,872 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:06:21,872 INFO L276 IsEmpty]: Start isEmpty. Operand 494 states and 691 transitions. [2024-10-31 22:06:21,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2024-10-31 22:06:21,874 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:06:21,875 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:06:21,897 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1663e583-c03b-42aa-bc11-00eb94932ad1/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-10-31 22:06:22,075 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1663e583-c03b-42aa-bc11-00eb94932ad1/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:06:22,076 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)] === [2024-10-31 22:06:22,077 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:06:22,078 INFO L85 PathProgramCache]: Analyzing trace with hash -1086501261, now seen corresponding path program 1 times [2024-10-31 22:06:22,078 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:06:22,080 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1255257286] [2024-10-31 22:06:22,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:06:22,080 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:06:22,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:06:22,560 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-31 22:06:22,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:06:22,579 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-31 22:06:22,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:06:22,608 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-10-31 22:06:22,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:06:22,633 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-31 22:06:22,633 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:06:22,633 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1255257286] [2024-10-31 22:06:22,633 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1255257286] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:06:22,634 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:06:22,634 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-31 22:06:22,634 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1637388949] [2024-10-31 22:06:22,634 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:06:22,635 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-31 22:06:22,635 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:06:22,636 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-31 22:06:22,636 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-31 22:06:22,637 INFO L87 Difference]: Start difference. First operand 494 states and 691 transitions. Second operand has 4 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-31 22:06:22,961 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:06:22,961 INFO L93 Difference]: Finished difference Result 1192 states and 1688 transitions. [2024-10-31 22:06:22,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-31 22:06:22,962 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 34 [2024-10-31 22:06:22,962 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:06:22,971 INFO L225 Difference]: With dead ends: 1192 [2024-10-31 22:06:22,971 INFO L226 Difference]: Without dead ends: 937 [2024-10-31 22:06:22,972 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-31 22:06:22,976 INFO L432 NwaCegarLoop]: 677 mSDtfsCounter, 616 mSDsluCounter, 1323 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 630 SdHoareTripleChecker+Valid, 2000 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-31 22:06:22,977 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [630 Valid, 2000 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-31 22:06:22,982 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 937 states. [2024-10-31 22:06:23,007 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 937 to 494. [2024-10-31 22:06:23,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 494 states, 461 states have (on average 1.4316702819956617) internal successors, (660), 475 states have internal predecessors, (660), 15 states have call successors, (15), 4 states have call predecessors, (15), 4 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-10-31 22:06:23,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 494 states to 494 states and 690 transitions. [2024-10-31 22:06:23,012 INFO L78 Accepts]: Start accepts. Automaton has 494 states and 690 transitions. Word has length 34 [2024-10-31 22:06:23,013 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:06:23,013 INFO L471 AbstractCegarLoop]: Abstraction has 494 states and 690 transitions. [2024-10-31 22:06:23,013 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-31 22:06:23,014 INFO L276 IsEmpty]: Start isEmpty. Operand 494 states and 690 transitions. [2024-10-31 22:06:23,019 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2024-10-31 22:06:23,019 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:06:23,021 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:06:23,021 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-31 22:06:23,022 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)] === [2024-10-31 22:06:23,023 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:06:23,023 INFO L85 PathProgramCache]: Analyzing trace with hash 185612591, now seen corresponding path program 1 times [2024-10-31 22:06:23,024 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:06:23,025 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1481658255] [2024-10-31 22:06:23,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:06:23,026 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:06:23,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:06:23,382 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:06:23,383 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:06:23,383 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1481658255] [2024-10-31 22:06:23,383 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1481658255] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:06:23,383 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:06:23,383 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-31 22:06:23,384 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1330821566] [2024-10-31 22:06:23,384 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:06:23,384 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-31 22:06:23,384 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:06:23,385 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-31 22:06:23,385 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-31 22:06:23,385 INFO L87 Difference]: Start difference. First operand 494 states and 690 transitions. Second operand has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:06:23,507 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:06:23,508 INFO L93 Difference]: Finished difference Result 982 states and 1374 transitions. [2024-10-31 22:06:23,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-31 22:06:23,508 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 64 [2024-10-31 22:06:23,509 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:06:23,511 INFO L225 Difference]: With dead ends: 982 [2024-10-31 22:06:23,511 INFO L226 Difference]: Without dead ends: 497 [2024-10-31 22:06:23,513 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-31 22:06:23,514 INFO L432 NwaCegarLoop]: 655 mSDtfsCounter, 105 mSDsluCounter, 1217 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 105 SdHoareTripleChecker+Valid, 1872 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-31 22:06:23,514 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [105 Valid, 1872 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-31 22:06:23,517 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 497 states. [2024-10-31 22:06:23,529 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 497 to 494. [2024-10-31 22:06:23,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 494 states, 461 states have (on average 1.4164859002169197) internal successors, (653), 475 states have internal predecessors, (653), 15 states have call successors, (15), 4 states have call predecessors, (15), 4 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-10-31 22:06:23,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 494 states to 494 states and 683 transitions. [2024-10-31 22:06:23,535 INFO L78 Accepts]: Start accepts. Automaton has 494 states and 683 transitions. Word has length 64 [2024-10-31 22:06:23,535 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:06:23,535 INFO L471 AbstractCegarLoop]: Abstraction has 494 states and 683 transitions. [2024-10-31 22:06:23,536 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:06:23,536 INFO L276 IsEmpty]: Start isEmpty. Operand 494 states and 683 transitions. [2024-10-31 22:06:23,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2024-10-31 22:06:23,539 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:06:23,539 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:06:23,540 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-31 22:06:23,540 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)] === [2024-10-31 22:06:23,540 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:06:23,540 INFO L85 PathProgramCache]: Analyzing trace with hash -878587357, now seen corresponding path program 1 times [2024-10-31 22:06:23,540 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:06:23,541 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [269844668] [2024-10-31 22:06:23,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:06:23,541 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:06:23,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:06:23,848 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:06:23,849 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:06:23,850 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [269844668] [2024-10-31 22:06:23,850 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [269844668] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:06:23,851 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:06:23,851 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:06:23,851 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [757896432] [2024-10-31 22:06:23,852 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:06:23,852 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-31 22:06:23,852 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:06:23,853 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-31 22:06:23,856 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-31 22:06:23,856 INFO L87 Difference]: Start difference. First operand 494 states and 683 transitions. Second operand has 4 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:06:23,930 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:06:23,930 INFO L93 Difference]: Finished difference Result 909 states and 1268 transitions. [2024-10-31 22:06:23,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-31 22:06:23,931 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 64 [2024-10-31 22:06:23,931 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:06:23,936 INFO L225 Difference]: With dead ends: 909 [2024-10-31 22:06:23,937 INFO L226 Difference]: Without dead ends: 905 [2024-10-31 22:06:23,938 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 [2024-10-31 22:06:23,938 INFO L432 NwaCegarLoop]: 673 mSDtfsCounter, 516 mSDsluCounter, 1335 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 516 SdHoareTripleChecker+Valid, 2008 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-31 22:06:23,939 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [516 Valid, 2008 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-31 22:06:23,941 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 905 states. [2024-10-31 22:06:23,961 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 905 to 897. [2024-10-31 22:06:23,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 897 states, 856 states have (on average 1.425233644859813) internal successors, (1220), 872 states have internal predecessors, (1220), 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) [2024-10-31 22:06:23,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 897 states to 897 states and 1264 transitions. [2024-10-31 22:06:23,968 INFO L78 Accepts]: Start accepts. Automaton has 897 states and 1264 transitions. Word has length 64 [2024-10-31 22:06:23,971 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:06:23,971 INFO L471 AbstractCegarLoop]: Abstraction has 897 states and 1264 transitions. [2024-10-31 22:06:23,971 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:06:23,971 INFO L276 IsEmpty]: Start isEmpty. Operand 897 states and 1264 transitions. [2024-10-31 22:06:23,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2024-10-31 22:06:23,974 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:06:23,975 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:06:23,975 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-31 22:06:23,975 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)] === [2024-10-31 22:06:23,976 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:06:23,976 INFO L85 PathProgramCache]: Analyzing trace with hash -240672312, now seen corresponding path program 1 times [2024-10-31 22:06:23,976 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:06:23,977 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1389935581] [2024-10-31 22:06:23,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:06:23,977 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:06:24,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:06:24,243 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-10-31 22:06:24,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:06:24,258 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:06:24,258 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:06:24,259 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1389935581] [2024-10-31 22:06:24,259 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1389935581] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:06:24,259 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:06:24,259 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-31 22:06:24,259 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1867885815] [2024-10-31 22:06:24,260 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:06:24,260 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-31 22:06:24,260 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:06:24,261 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-31 22:06:24,261 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-31 22:06:24,261 INFO L87 Difference]: Start difference. First operand 897 states and 1264 transitions. Second operand has 4 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-10-31 22:06:24,529 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:06:24,529 INFO L93 Difference]: Finished difference Result 1171 states and 1640 transitions. [2024-10-31 22:06:24,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-31 22:06:24,530 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 74 [2024-10-31 22:06:24,530 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:06:24,536 INFO L225 Difference]: With dead ends: 1171 [2024-10-31 22:06:24,536 INFO L226 Difference]: Without dead ends: 1169 [2024-10-31 22:06:24,537 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 [2024-10-31 22:06:24,538 INFO L432 NwaCegarLoop]: 655 mSDtfsCounter, 572 mSDsluCounter, 1268 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 576 SdHoareTripleChecker+Valid, 1923 SdHoareTripleChecker+Invalid, 95 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-31 22:06:24,538 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [576 Valid, 1923 Invalid, 95 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-31 22:06:24,541 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1169 states. [2024-10-31 22:06:24,572 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1169 to 1159. [2024-10-31 22:06:24,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1159 states, 1105 states have (on average 1.4244343891402715) internal successors, (1574), 1122 states have internal predecessors, (1574), 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) [2024-10-31 22:06:24,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1159 states to 1159 states and 1638 transitions. [2024-10-31 22:06:24,581 INFO L78 Accepts]: Start accepts. Automaton has 1159 states and 1638 transitions. Word has length 74 [2024-10-31 22:06:24,581 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:06:24,581 INFO L471 AbstractCegarLoop]: Abstraction has 1159 states and 1638 transitions. [2024-10-31 22:06:24,582 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-10-31 22:06:24,582 INFO L276 IsEmpty]: Start isEmpty. Operand 1159 states and 1638 transitions. [2024-10-31 22:06:24,583 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2024-10-31 22:06:24,583 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:06:24,583 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:06:24,584 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-31 22:06:24,584 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)] === [2024-10-31 22:06:24,584 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:06:24,584 INFO L85 PathProgramCache]: Analyzing trace with hash 980932139, now seen corresponding path program 1 times [2024-10-31 22:06:24,585 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:06:24,585 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1330261983] [2024-10-31 22:06:24,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:06:24,585 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:06:24,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:06:25,096 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-10-31 22:06:25,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:06:25,203 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-10-31 22:06:25,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:06:25,212 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:06:25,212 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:06:25,212 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1330261983] [2024-10-31 22:06:25,212 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1330261983] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-31 22:06:25,213 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1214770272] [2024-10-31 22:06:25,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:06:25,213 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:06:25,213 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1663e583-c03b-42aa-bc11-00eb94932ad1/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:06:25,216 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1663e583-c03b-42aa-bc11-00eb94932ad1/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 22:06:25,217 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1663e583-c03b-42aa-bc11-00eb94932ad1/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-10-31 22:06:25,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:06:25,547 INFO L255 TraceCheckSpWp]: Trace formula consists of 506 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-10-31 22:06:25,552 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:06:25,673 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:06:25,673 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-31 22:06:25,673 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1214770272] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:06:25,674 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-31 22:06:25,674 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [8] total 11 [2024-10-31 22:06:25,674 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [374359754] [2024-10-31 22:06:25,674 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:06:25,675 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-31 22:06:25,675 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:06:25,675 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-31 22:06:25,676 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2024-10-31 22:06:25,676 INFO L87 Difference]: Start difference. First operand 1159 states and 1638 transitions. Second operand has 5 states, 4 states have (on average 19.5) internal successors, (78), 5 states have internal predecessors, (78), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2024-10-31 22:06:25,801 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:06:25,801 INFO L93 Difference]: Finished difference Result 1576 states and 2224 transitions. [2024-10-31 22:06:25,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-31 22:06:25,802 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 19.5) internal successors, (78), 5 states have internal predecessors, (78), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 83 [2024-10-31 22:06:25,802 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:06:25,808 INFO L225 Difference]: With dead ends: 1576 [2024-10-31 22:06:25,809 INFO L226 Difference]: Without dead ends: 1575 [2024-10-31 22:06:25,810 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 82 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2024-10-31 22:06:25,810 INFO L432 NwaCegarLoop]: 666 mSDtfsCounter, 636 mSDsluCounter, 1923 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 636 SdHoareTripleChecker+Valid, 2589 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-31 22:06:25,811 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [636 Valid, 2589 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-31 22:06:25,813 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1575 states. [2024-10-31 22:06:25,857 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1575 to 1525. [2024-10-31 22:06:25,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1525 states, 1464 states have (on average 1.4296448087431695) internal successors, (2093), 1483 states have internal predecessors, (2093), 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) [2024-10-31 22:06:25,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1525 states to 1525 states and 2167 transitions. [2024-10-31 22:06:25,867 INFO L78 Accepts]: Start accepts. Automaton has 1525 states and 2167 transitions. Word has length 83 [2024-10-31 22:06:25,868 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:06:25,868 INFO L471 AbstractCegarLoop]: Abstraction has 1525 states and 2167 transitions. [2024-10-31 22:06:25,868 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 19.5) internal successors, (78), 5 states have internal predecessors, (78), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2024-10-31 22:06:25,868 INFO L276 IsEmpty]: Start isEmpty. Operand 1525 states and 2167 transitions. [2024-10-31 22:06:25,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-10-31 22:06:25,869 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:06:25,870 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:06:25,892 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1663e583-c03b-42aa-bc11-00eb94932ad1/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-10-31 22:06:26,074 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1663e583-c03b-42aa-bc11-00eb94932ad1/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:06:26,074 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)] === [2024-10-31 22:06:26,075 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:06:26,075 INFO L85 PathProgramCache]: Analyzing trace with hash 344125278, now seen corresponding path program 1 times [2024-10-31 22:06:26,075 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:06:26,078 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [52648377] [2024-10-31 22:06:26,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:06:26,078 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:06:26,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:06:26,591 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-10-31 22:06:26,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:06:26,682 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-10-31 22:06:26,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:06:26,692 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:06:26,692 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:06:26,692 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [52648377] [2024-10-31 22:06:26,693 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [52648377] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-31 22:06:26,693 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [797929124] [2024-10-31 22:06:26,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:06:26,693 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:06:26,693 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1663e583-c03b-42aa-bc11-00eb94932ad1/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:06:26,696 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1663e583-c03b-42aa-bc11-00eb94932ad1/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 22:06:26,697 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1663e583-c03b-42aa-bc11-00eb94932ad1/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-10-31 22:06:27,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:06:27,035 INFO L255 TraceCheckSpWp]: Trace formula consists of 507 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-10-31 22:06:27,041 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:06:27,302 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:06:27,302 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-31 22:06:27,694 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:06:27,694 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [797929124] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-31 22:06:27,694 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-31 22:06:27,695 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 6, 7] total 18 [2024-10-31 22:06:27,695 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1469764402] [2024-10-31 22:06:27,695 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-31 22:06:27,696 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-10-31 22:06:27,696 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:06:27,696 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-10-31 22:06:27,697 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=269, Unknown=0, NotChecked=0, Total=342 [2024-10-31 22:06:27,697 INFO L87 Difference]: Start difference. First operand 1525 states and 2167 transitions. Second operand has 19 states, 18 states have (on average 12.555555555555555) internal successors, (226), 15 states have internal predecessors, (226), 5 states have call successors, (8), 7 states have call predecessors, (8), 5 states have return successors, (6), 2 states have call predecessors, (6), 5 states have call successors, (6) [2024-10-31 22:06:30,806 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:06:30,806 INFO L93 Difference]: Finished difference Result 4158 states and 5901 transitions. [2024-10-31 22:06:30,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2024-10-31 22:06:30,807 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 18 states have (on average 12.555555555555555) internal successors, (226), 15 states have internal predecessors, (226), 5 states have call successors, (8), 7 states have call predecessors, (8), 5 states have return successors, (6), 2 states have call predecessors, (6), 5 states have call successors, (6) Word has length 84 [2024-10-31 22:06:30,807 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:06:30,824 INFO L225 Difference]: With dead ends: 4158 [2024-10-31 22:06:30,824 INFO L226 Difference]: Without dead ends: 4156 [2024-10-31 22:06:30,826 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 209 GetRequests, 167 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 436 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=542, Invalid=1350, Unknown=0, NotChecked=0, Total=1892 [2024-10-31 22:06:30,827 INFO L432 NwaCegarLoop]: 720 mSDtfsCounter, 5941 mSDsluCounter, 11594 mSDsCounter, 0 mSdLazyCounter, 978 mSolverCounterSat, 305 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5966 SdHoareTripleChecker+Valid, 12314 SdHoareTripleChecker+Invalid, 1283 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 305 IncrementalHoareTripleChecker+Valid, 978 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-10-31 22:06:30,828 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5966 Valid, 12314 Invalid, 1283 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [305 Valid, 978 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-10-31 22:06:30,833 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4156 states. [2024-10-31 22:06:30,954 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4156 to 3179. [2024-10-31 22:06:30,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3179 states, 3059 states have (on average 1.4233409610983982) internal successors, (4354), 3080 states have internal predecessors, (4354), 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) [2024-10-31 22:06:30,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3179 states to 3179 states and 4543 transitions. [2024-10-31 22:06:30,981 INFO L78 Accepts]: Start accepts. Automaton has 3179 states and 4543 transitions. Word has length 84 [2024-10-31 22:06:30,982 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:06:30,983 INFO L471 AbstractCegarLoop]: Abstraction has 3179 states and 4543 transitions. [2024-10-31 22:06:30,983 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 18 states have (on average 12.555555555555555) internal successors, (226), 15 states have internal predecessors, (226), 5 states have call successors, (8), 7 states have call predecessors, (8), 5 states have return successors, (6), 2 states have call predecessors, (6), 5 states have call successors, (6) [2024-10-31 22:06:30,983 INFO L276 IsEmpty]: Start isEmpty. Operand 3179 states and 4543 transitions. [2024-10-31 22:06:30,984 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2024-10-31 22:06:30,985 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:06:30,985 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:06:31,028 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1663e583-c03b-42aa-bc11-00eb94932ad1/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-10-31 22:06:31,225 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1663e583-c03b-42aa-bc11-00eb94932ad1/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:06:31,225 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)] === [2024-10-31 22:06:31,226 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:06:31,226 INFO L85 PathProgramCache]: Analyzing trace with hash -1558756002, now seen corresponding path program 1 times [2024-10-31 22:06:31,226 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:06:31,226 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [721301006] [2024-10-31 22:06:31,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:06:31,227 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:06:31,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:06:31,417 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:06:31,418 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:06:31,418 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [721301006] [2024-10-31 22:06:31,418 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [721301006] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:06:31,418 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:06:31,418 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-31 22:06:31,419 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1029148155] [2024-10-31 22:06:31,419 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:06:31,419 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:06:31,419 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:06:31,420 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:06:31,421 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:06:31,421 INFO L87 Difference]: Start difference. First operand 3179 states and 4543 transitions. Second operand has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:06:31,704 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:06:31,704 INFO L93 Difference]: Finished difference Result 6616 states and 9488 transitions. [2024-10-31 22:06:31,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:06:31,705 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 82 [2024-10-31 22:06:31,705 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:06:31,722 INFO L225 Difference]: With dead ends: 6616 [2024-10-31 22:06:31,722 INFO L226 Difference]: Without dead ends: 3446 [2024-10-31 22:06:31,728 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:06:31,731 INFO L432 NwaCegarLoop]: 905 mSDtfsCounter, 420 mSDsluCounter, 640 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 425 SdHoareTripleChecker+Valid, 1545 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-31 22:06:31,731 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [425 Valid, 1545 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-31 22:06:31,736 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3446 states. [2024-10-31 22:06:31,864 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3446 to 3332. [2024-10-31 22:06:31,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3332 states, 3218 states have (on average 1.4334990677439403) internal successors, (4613), 3238 states have internal predecessors, (4613), 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) [2024-10-31 22:06:31,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3332 states to 3332 states and 4795 transitions. [2024-10-31 22:06:31,887 INFO L78 Accepts]: Start accepts. Automaton has 3332 states and 4795 transitions. Word has length 82 [2024-10-31 22:06:31,887 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:06:31,887 INFO L471 AbstractCegarLoop]: Abstraction has 3332 states and 4795 transitions. [2024-10-31 22:06:31,887 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:06:31,888 INFO L276 IsEmpty]: Start isEmpty. Operand 3332 states and 4795 transitions. [2024-10-31 22:06:31,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2024-10-31 22:06:31,889 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:06:31,889 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:06:31,889 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-31 22:06:31,889 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)] === [2024-10-31 22:06:31,890 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:06:31,890 INFO L85 PathProgramCache]: Analyzing trace with hash -1908045712, now seen corresponding path program 1 times [2024-10-31 22:06:31,890 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:06:31,890 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1825167058] [2024-10-31 22:06:31,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:06:31,891 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:06:32,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:06:32,360 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-10-31 22:06:32,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:06:32,383 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-10-31 22:06:32,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:06:32,429 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-31 22:06:32,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:06:32,439 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-10-31 22:06:32,440 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:06:32,440 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1825167058] [2024-10-31 22:06:32,440 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1825167058] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-31 22:06:32,440 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2131376076] [2024-10-31 22:06:32,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:06:32,442 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:06:32,442 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1663e583-c03b-42aa-bc11-00eb94932ad1/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:06:32,444 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1663e583-c03b-42aa-bc11-00eb94932ad1/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 22:06:32,445 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1663e583-c03b-42aa-bc11-00eb94932ad1/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-10-31 22:06:32,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:06:32,801 INFO L255 TraceCheckSpWp]: Trace formula consists of 601 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-10-31 22:06:32,806 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:06:33,001 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 7 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:06:33,001 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-31 22:06:33,300 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-10-31 22:06:33,300 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2131376076] provided 1 perfect and 1 imperfect interpolant sequences [2024-10-31 22:06:33,300 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-10-31 22:06:33,301 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [7, 4] total 13 [2024-10-31 22:06:33,301 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1002926374] [2024-10-31 22:06:33,301 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:06:33,301 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-31 22:06:33,302 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:06:33,302 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-31 22:06:33,302 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=129, Unknown=0, NotChecked=0, Total=182 [2024-10-31 22:06:33,303 INFO L87 Difference]: Start difference. First operand 3332 states and 4795 transitions. Second operand has 6 states, 5 states have (on average 16.0) internal successors, (80), 6 states have internal predecessors, (80), 2 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-10-31 22:06:33,519 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:06:33,519 INFO L93 Difference]: Finished difference Result 3332 states and 4795 transitions. [2024-10-31 22:06:33,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:06:33,520 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 16.0) internal successors, (80), 6 states have internal predecessors, (80), 2 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 93 [2024-10-31 22:06:33,520 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:06:33,532 INFO L225 Difference]: With dead ends: 3332 [2024-10-31 22:06:33,532 INFO L226 Difference]: Without dead ends: 3331 [2024-10-31 22:06:33,534 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 194 GetRequests, 181 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=53, Invalid=129, Unknown=0, NotChecked=0, Total=182 [2024-10-31 22:06:33,534 INFO L432 NwaCegarLoop]: 671 mSDtfsCounter, 1816 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1816 SdHoareTripleChecker+Valid, 671 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-31 22:06:33,535 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1816 Valid, 671 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-31 22:06:33,540 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3331 states. [2024-10-31 22:06:33,664 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3331 to 3331. [2024-10-31 22:06:33,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3331 states, 3218 states have (on average 1.4319453076444997) internal successors, (4608), 3237 states have internal predecessors, (4608), 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) [2024-10-31 22:06:33,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3331 states to 3331 states and 4790 transitions. [2024-10-31 22:06:33,681 INFO L78 Accepts]: Start accepts. Automaton has 3331 states and 4790 transitions. Word has length 93 [2024-10-31 22:06:33,682 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:06:33,682 INFO L471 AbstractCegarLoop]: Abstraction has 3331 states and 4790 transitions. [2024-10-31 22:06:33,682 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 16.0) internal successors, (80), 6 states have internal predecessors, (80), 2 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-10-31 22:06:33,682 INFO L276 IsEmpty]: Start isEmpty. Operand 3331 states and 4790 transitions. [2024-10-31 22:06:33,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-10-31 22:06:33,683 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:06:33,684 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:06:33,706 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1663e583-c03b-42aa-bc11-00eb94932ad1/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-10-31 22:06:33,888 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1663e583-c03b-42aa-bc11-00eb94932ad1/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:06:33,888 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)] === [2024-10-31 22:06:33,888 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:06:33,889 INFO L85 PathProgramCache]: Analyzing trace with hash 980125141, now seen corresponding path program 1 times [2024-10-31 22:06:33,889 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:06:33,889 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1613268762] [2024-10-31 22:06:33,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:06:33,889 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:06:33,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:06:34,240 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-10-31 22:06:34,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:06:34,270 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-10-31 22:06:34,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:06:34,359 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-31 22:06:34,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:06:34,371 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-10-31 22:06:34,372 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:06:34,372 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1613268762] [2024-10-31 22:06:34,372 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1613268762] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-31 22:06:34,372 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1718135461] [2024-10-31 22:06:34,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:06:34,373 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:06:34,373 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1663e583-c03b-42aa-bc11-00eb94932ad1/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:06:34,375 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1663e583-c03b-42aa-bc11-00eb94932ad1/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 22:06:34,376 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1663e583-c03b-42aa-bc11-00eb94932ad1/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-10-31 22:06:34,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:06:34,770 INFO L255 TraceCheckSpWp]: Trace formula consists of 602 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-10-31 22:06:34,776 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:06:34,982 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:06:34,983 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-31 22:06:35,249 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-10-31 22:06:35,250 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1718135461] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-31 22:06:35,250 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-31 22:06:35,250 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 4, 5] total 13 [2024-10-31 22:06:35,250 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [422461635] [2024-10-31 22:06:35,251 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-31 22:06:35,251 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-10-31 22:06:35,251 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:06:35,252 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-10-31 22:06:35,252 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=124, Unknown=0, NotChecked=0, Total=182 [2024-10-31 22:06:35,252 INFO L87 Difference]: Start difference. First operand 3331 states and 4790 transitions. Second operand has 14 states, 13 states have (on average 18.076923076923077) internal successors, (235), 12 states have internal predecessors, (235), 5 states have call successors, (11), 8 states have call predecessors, (11), 5 states have return successors, (9), 5 states have call predecessors, (9), 5 states have call successors, (9) [2024-10-31 22:06:36,594 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:06:36,594 INFO L93 Difference]: Finished difference Result 6509 states and 9324 transitions. [2024-10-31 22:06:36,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-10-31 22:06:36,595 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 18.076923076923077) internal successors, (235), 12 states have internal predecessors, (235), 5 states have call successors, (11), 8 states have call predecessors, (11), 5 states have return successors, (9), 5 states have call predecessors, (9), 5 states have call successors, (9) Word has length 94 [2024-10-31 22:06:36,596 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:06:36,620 INFO L225 Difference]: With dead ends: 6509 [2024-10-31 22:06:36,620 INFO L226 Difference]: Without dead ends: 6508 [2024-10-31 22:06:36,623 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 218 GetRequests, 192 SyntacticMatches, 1 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 128 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=231, Invalid=471, Unknown=0, NotChecked=0, Total=702 [2024-10-31 22:06:36,624 INFO L432 NwaCegarLoop]: 634 mSDtfsCounter, 2496 mSDsluCounter, 4912 mSDsCounter, 0 mSdLazyCounter, 369 mSolverCounterSat, 163 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2515 SdHoareTripleChecker+Valid, 5546 SdHoareTripleChecker+Invalid, 532 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 163 IncrementalHoareTripleChecker+Valid, 369 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-10-31 22:06:36,624 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2515 Valid, 5546 Invalid, 532 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [163 Valid, 369 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-10-31 22:06:36,632 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6508 states. [2024-10-31 22:06:36,857 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6508 to 6070. [2024-10-31 22:06:36,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6070 states, 5848 states have (on average 1.427325581395349) internal successors, (8347), 5872 states have internal predecessors, (8347), 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) [2024-10-31 22:06:36,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6070 states to 6070 states and 8703 transitions. [2024-10-31 22:06:36,885 INFO L78 Accepts]: Start accepts. Automaton has 6070 states and 8703 transitions. Word has length 94 [2024-10-31 22:06:36,886 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:06:36,886 INFO L471 AbstractCegarLoop]: Abstraction has 6070 states and 8703 transitions. [2024-10-31 22:06:36,886 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 18.076923076923077) internal successors, (235), 12 states have internal predecessors, (235), 5 states have call successors, (11), 8 states have call predecessors, (11), 5 states have return successors, (9), 5 states have call predecessors, (9), 5 states have call successors, (9) [2024-10-31 22:06:36,887 INFO L276 IsEmpty]: Start isEmpty. Operand 6070 states and 8703 transitions. [2024-10-31 22:06:36,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2024-10-31 22:06:36,890 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:06:36,890 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:06:36,912 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1663e583-c03b-42aa-bc11-00eb94932ad1/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-10-31 22:06:37,094 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1663e583-c03b-42aa-bc11-00eb94932ad1/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:06:37,094 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)] === [2024-10-31 22:06:37,095 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:06:37,095 INFO L85 PathProgramCache]: Analyzing trace with hash 2083756214, now seen corresponding path program 1 times [2024-10-31 22:06:37,095 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:06:37,095 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1978667024] [2024-10-31 22:06:37,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:06:37,096 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:06:37,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:06:37,657 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-10-31 22:06:37,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:06:37,679 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-10-31 22:06:37,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:06:37,690 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-31 22:06:37,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:06:37,711 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-10-31 22:06:37,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:06:37,726 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-10-31 22:06:37,726 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:06:37,726 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1978667024] [2024-10-31 22:06:37,726 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1978667024] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:06:37,727 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:06:37,727 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-31 22:06:37,727 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1412180785] [2024-10-31 22:06:37,727 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:06:37,727 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-31 22:06:37,728 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:06:37,728 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-31 22:06:37,728 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-31 22:06:37,732 INFO L87 Difference]: Start difference. First operand 6070 states and 8703 transitions. Second operand has 6 states, 5 states have (on average 20.0) internal successors, (100), 4 states have internal predecessors, (100), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-10-31 22:06:38,744 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:06:38,744 INFO L93 Difference]: Finished difference Result 8326 states and 11950 transitions. [2024-10-31 22:06:38,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-31 22:06:38,745 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 20.0) internal successors, (100), 4 states have internal predecessors, (100), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 120 [2024-10-31 22:06:38,746 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:06:38,786 INFO L225 Difference]: With dead ends: 8326 [2024-10-31 22:06:38,786 INFO L226 Difference]: Without dead ends: 8324 [2024-10-31 22:06:38,789 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-10-31 22:06:38,790 INFO L432 NwaCegarLoop]: 621 mSDtfsCounter, 564 mSDsluCounter, 2296 mSDsCounter, 0 mSdLazyCounter, 383 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 575 SdHoareTripleChecker+Valid, 2917 SdHoareTripleChecker+Invalid, 438 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 383 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-10-31 22:06:38,791 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [575 Valid, 2917 Invalid, 438 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 383 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-10-31 22:06:38,800 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8324 states. [2024-10-31 22:06:39,010 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8324 to 6238. [2024-10-31 22:06:39,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6238 states, 6007 states have (on average 1.4225070750790745) internal successors, (8545), 6032 states have internal predecessors, (8545), 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) [2024-10-31 22:06:39,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6238 states to 6238 states and 8922 transitions. [2024-10-31 22:06:39,048 INFO L78 Accepts]: Start accepts. Automaton has 6238 states and 8922 transitions. Word has length 120 [2024-10-31 22:06:39,048 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:06:39,049 INFO L471 AbstractCegarLoop]: Abstraction has 6238 states and 8922 transitions. [2024-10-31 22:06:39,049 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 20.0) internal successors, (100), 4 states have internal predecessors, (100), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-10-31 22:06:39,049 INFO L276 IsEmpty]: Start isEmpty. Operand 6238 states and 8922 transitions. [2024-10-31 22:06:39,052 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2024-10-31 22:06:39,053 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:06:39,053 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:06:39,053 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-10-31 22:06:39,053 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)] === [2024-10-31 22:06:39,054 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:06:39,054 INFO L85 PathProgramCache]: Analyzing trace with hash -1429916002, now seen corresponding path program 1 times [2024-10-31 22:06:39,054 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:06:39,054 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [627371725] [2024-10-31 22:06:39,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:06:39,055 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:06:39,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:06:39,516 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-10-31 22:06:39,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:06:39,601 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-10-31 22:06:39,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:06:39,606 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-31 22:06:39,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:06:39,627 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-10-31 22:06:39,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:06:39,641 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-10-31 22:06:39,641 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:06:39,641 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [627371725] [2024-10-31 22:06:39,641 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [627371725] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-31 22:06:39,641 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [95268383] [2024-10-31 22:06:39,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:06:39,649 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:06:39,652 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1663e583-c03b-42aa-bc11-00eb94932ad1/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:06:39,654 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1663e583-c03b-42aa-bc11-00eb94932ad1/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 22:06:39,666 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1663e583-c03b-42aa-bc11-00eb94932ad1/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-10-31 22:06:40,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:06:40,175 INFO L255 TraceCheckSpWp]: Trace formula consists of 795 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-10-31 22:06:40,181 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:06:40,356 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-10-31 22:06:40,357 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-31 22:06:40,357 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [95268383] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:06:40,357 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-31 22:06:40,358 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [8] total 12 [2024-10-31 22:06:40,358 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1148230541] [2024-10-31 22:06:40,358 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:06:40,359 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-31 22:06:40,359 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:06:40,360 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-31 22:06:40,360 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2024-10-31 22:06:40,360 INFO L87 Difference]: Start difference. First operand 6238 states and 8922 transitions. Second operand has 7 states, 7 states have (on average 16.142857142857142) internal successors, (113), 5 states have internal predecessors, (113), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2024-10-31 22:06:40,815 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:06:40,815 INFO L93 Difference]: Finished difference Result 11822 states and 16948 transitions. [2024-10-31 22:06:40,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-31 22:06:40,816 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.142857142857142) internal successors, (113), 5 states have internal predecessors, (113), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) Word has length 127 [2024-10-31 22:06:40,816 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:06:40,833 INFO L225 Difference]: With dead ends: 11822 [2024-10-31 22:06:40,833 INFO L226 Difference]: Without dead ends: 5988 [2024-10-31 22:06:40,841 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 142 GetRequests, 129 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=165, Unknown=0, NotChecked=0, Total=210 [2024-10-31 22:06:40,842 INFO L432 NwaCegarLoop]: 651 mSDtfsCounter, 161 mSDsluCounter, 2523 mSDsCounter, 0 mSdLazyCounter, 167 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 162 SdHoareTripleChecker+Valid, 3174 SdHoareTripleChecker+Invalid, 182 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 167 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-31 22:06:40,842 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [162 Valid, 3174 Invalid, 182 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 167 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-31 22:06:40,849 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5988 states. [2024-10-31 22:06:41,041 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5988 to 5988. [2024-10-31 22:06:41,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5988 states, 5774 states have (on average 1.4255282299965362) internal successors, (8231), 5797 states have internal predecessors, (8231), 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) [2024-10-31 22:06:41,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5988 states to 5988 states and 8580 transitions. [2024-10-31 22:06:41,068 INFO L78 Accepts]: Start accepts. Automaton has 5988 states and 8580 transitions. Word has length 127 [2024-10-31 22:06:41,068 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:06:41,068 INFO L471 AbstractCegarLoop]: Abstraction has 5988 states and 8580 transitions. [2024-10-31 22:06:41,068 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.142857142857142) internal successors, (113), 5 states have internal predecessors, (113), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2024-10-31 22:06:41,069 INFO L276 IsEmpty]: Start isEmpty. Operand 5988 states and 8580 transitions. [2024-10-31 22:06:41,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2024-10-31 22:06:41,070 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:06:41,071 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:06:41,093 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1663e583-c03b-42aa-bc11-00eb94932ad1/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-10-31 22:06:41,275 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1663e583-c03b-42aa-bc11-00eb94932ad1/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:06:41,275 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)] === [2024-10-31 22:06:41,276 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:06:41,276 INFO L85 PathProgramCache]: Analyzing trace with hash 2038802715, now seen corresponding path program 1 times [2024-10-31 22:06:41,276 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:06:41,277 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2086797415] [2024-10-31 22:06:41,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:06:41,277 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms