./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/memsafety/test-0235-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53a965d3-ced8-4afb-8764-90382fa17ae0/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53a965d3-ced8-4afb-8764-90382fa17ae0/bin/uautomizer-verify-aQ6SnzHsRB/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53a965d3-ced8-4afb-8764-90382fa17ae0/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53a965d3-ced8-4afb-8764-90382fa17ae0/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/memsafety/test-0235-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53a965d3-ced8-4afb-8764-90382fa17ae0/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53a965d3-ced8-4afb-8764-90382fa17ae0/bin/uautomizer-verify-aQ6SnzHsRB --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 6e8dd9d71aae7a8c83467a9093ad4bffb4ddd59cddc2d90362f34ff651f24f9a --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 05:11:06,181 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 05:11:06,249 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53a965d3-ced8-4afb-8764-90382fa17ae0/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-11-28 05:11:06,257 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 05:11:06,258 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 05:11:06,296 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 05:11:06,296 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 05:11:06,296 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 05:11:06,297 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 05:11:06,297 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 05:11:06,297 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 05:11:06,297 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 05:11:06,297 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 05:11:06,297 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 05:11:06,297 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 05:11:06,297 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 05:11:06,298 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-28 05:11:06,298 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 05:11:06,298 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-28 05:11:06,298 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 05:11:06,298 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-28 05:11:06,298 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-28 05:11:06,298 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-28 05:11:06,298 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 05:11:06,301 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-28 05:11:06,301 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-28 05:11:06,301 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-28 05:11:06,301 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 05:11:06,301 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 05:11:06,301 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 05:11:06,302 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 05:11:06,302 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 05:11:06,302 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 05:11:06,302 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 05:11:06,303 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 05:11:06,303 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 05:11:06,303 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 05:11:06,303 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 05:11:06,303 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 05:11:06,303 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 05:11:06,303 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 05:11:06,303 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-28 05:11:06,303 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-28 05:11:06,304 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 05:11:06,304 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 05:11:06,304 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 05:11:06,304 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 05:11:06,304 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_53a965d3-ced8-4afb-8764-90382fa17ae0/bin/uautomizer-verify-aQ6SnzHsRB 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 valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) 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 -> 6e8dd9d71aae7a8c83467a9093ad4bffb4ddd59cddc2d90362f34ff651f24f9a [2024-11-28 05:11:06,594 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 05:11:06,602 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 05:11:06,604 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 05:11:06,605 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 05:11:06,606 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 05:11:06,607 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53a965d3-ced8-4afb-8764-90382fa17ae0/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/memsafety/test-0235-1.i [2024-11-28 05:11:09,652 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53a965d3-ced8-4afb-8764-90382fa17ae0/bin/uautomizer-verify-aQ6SnzHsRB/data/b9fa4047e/12fd8a79a92d4c9ab3c7452a1a9ffdb4/FLAGd5620f814 [2024-11-28 05:11:10,011 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 05:11:10,014 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53a965d3-ced8-4afb-8764-90382fa17ae0/sv-benchmarks/c/memsafety/test-0235-1.i [2024-11-28 05:11:10,035 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53a965d3-ced8-4afb-8764-90382fa17ae0/bin/uautomizer-verify-aQ6SnzHsRB/data/b9fa4047e/12fd8a79a92d4c9ab3c7452a1a9ffdb4/FLAGd5620f814 [2024-11-28 05:11:10,056 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53a965d3-ced8-4afb-8764-90382fa17ae0/bin/uautomizer-verify-aQ6SnzHsRB/data/b9fa4047e/12fd8a79a92d4c9ab3c7452a1a9ffdb4 [2024-11-28 05:11:10,059 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 05:11:10,062 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 05:11:10,064 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 05:11:10,065 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 05:11:10,073 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 05:11:10,074 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 05:11:10" (1/1) ... [2024-11-28 05:11:10,075 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3a6314fa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:11:10, skipping insertion in model container [2024-11-28 05:11:10,075 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 05:11:10" (1/1) ... [2024-11-28 05:11:10,111 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 05:11:10,580 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 05:11:10,589 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 05:11:10,651 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 05:11:10,686 INFO L204 MainTranslator]: Completed translation [2024-11-28 05:11:10,687 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:11:10 WrapperNode [2024-11-28 05:11:10,687 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 05:11:10,688 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 05:11:10,688 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 05:11:10,688 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 05:11:10,694 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:11:10" (1/1) ... [2024-11-28 05:11:10,708 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:11:10" (1/1) ... [2024-11-28 05:11:10,734 INFO L138 Inliner]: procedures = 188, calls = 69, calls flagged for inlining = 13, calls inlined = 13, statements flattened = 230 [2024-11-28 05:11:10,734 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 05:11:10,735 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 05:11:10,735 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 05:11:10,735 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 05:11:10,745 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:11:10" (1/1) ... [2024-11-28 05:11:10,745 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:11:10" (1/1) ... [2024-11-28 05:11:10,753 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:11:10" (1/1) ... [2024-11-28 05:11:10,801 INFO L175 MemorySlicer]: Split 37 memory accesses to 3 slices as follows [2, 9, 26]. 70 percent of accesses are in the largest equivalence class. The 3 initializations are split as follows [2, 1, 0]. The 13 writes are split as follows [0, 1, 12]. [2024-11-28 05:11:10,802 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:11:10" (1/1) ... [2024-11-28 05:11:10,802 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:11:10" (1/1) ... [2024-11-28 05:11:10,814 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:11:10" (1/1) ... [2024-11-28 05:11:10,815 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:11:10" (1/1) ... [2024-11-28 05:11:10,824 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:11:10" (1/1) ... [2024-11-28 05:11:10,830 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:11:10" (1/1) ... [2024-11-28 05:11:10,831 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:11:10" (1/1) ... [2024-11-28 05:11:10,840 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 05:11:10,841 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 05:11:10,841 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 05:11:10,842 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 05:11:10,846 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:11:10" (1/1) ... [2024-11-28 05:11:10,854 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 05:11:10,872 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53a965d3-ced8-4afb-8764-90382fa17ae0/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:11:10,889 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53a965d3-ced8-4afb-8764-90382fa17ae0/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 05:11:10,892 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53a965d3-ced8-4afb-8764-90382fa17ae0/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 05:11:10,923 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-28 05:11:10,924 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 05:11:10,925 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-28 05:11:10,925 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-28 05:11:10,925 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-28 05:11:10,925 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-28 05:11:10,925 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-28 05:11:10,925 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-28 05:11:10,925 INFO L130 BoogieDeclarations]: Found specification of procedure zalloc_or_die [2024-11-28 05:11:10,926 INFO L138 BoogieDeclarations]: Found implementation of procedure zalloc_or_die [2024-11-28 05:11:10,926 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-28 05:11:10,926 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-11-28 05:11:10,927 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-11-28 05:11:10,927 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2024-11-28 05:11:10,927 INFO L130 BoogieDeclarations]: Found specification of procedure l0_destroy [2024-11-28 05:11:10,927 INFO L138 BoogieDeclarations]: Found implementation of procedure l0_destroy [2024-11-28 05:11:10,927 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-28 05:11:10,928 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-28 05:11:10,928 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-28 05:11:10,928 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 05:11:10,928 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 05:11:11,132 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 05:11:11,134 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 05:11:11,884 INFO L? ?]: Removed 203 outVars from TransFormulas that were not future-live. [2024-11-28 05:11:11,884 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 05:11:11,898 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 05:11:11,899 INFO L312 CfgBuilder]: Removed 10 assume(true) statements. [2024-11-28 05:11:11,899 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 05:11:11 BoogieIcfgContainer [2024-11-28 05:11:11,899 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 05:11:11,901 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 05:11:11,902 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 05:11:11,907 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 05:11:11,908 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 05:11:10" (1/3) ... [2024-11-28 05:11:11,908 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@34d51fc5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 05:11:11, skipping insertion in model container [2024-11-28 05:11:11,909 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:11:10" (2/3) ... [2024-11-28 05:11:11,909 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@34d51fc5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 05:11:11, skipping insertion in model container [2024-11-28 05:11:11,910 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 05:11:11" (3/3) ... [2024-11-28 05:11:11,911 INFO L128 eAbstractionObserver]: Analyzing ICFG test-0235-1.i [2024-11-28 05:11:11,928 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 05:11:11,931 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG test-0235-1.i that has 3 procedures, 228 locations, 1 initial locations, 11 loop locations, and 85 error locations. [2024-11-28 05:11:11,980 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 05:11:11,997 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=None, 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;@7126e2f2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 05:11:11,998 INFO L334 AbstractCegarLoop]: Starting to check reachability of 85 error locations. [2024-11-28 05:11:12,003 INFO L276 IsEmpty]: Start isEmpty. Operand has 228 states, 129 states have (on average 1.9069767441860466) internal successors, (246), 214 states have internal predecessors, (246), 11 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-11-28 05:11:12,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2024-11-28 05:11:12,010 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:11:12,011 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2024-11-28 05:11:12,011 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr32REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [l0_destroyErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, l0_destroyErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, l0_destroyErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 82 more)] === [2024-11-28 05:11:12,016 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:11:12,016 INFO L85 PathProgramCache]: Analyzing trace with hash 7887142, now seen corresponding path program 1 times [2024-11-28 05:11:12,026 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:11:12,026 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [653481885] [2024-11-28 05:11:12,026 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:11:12,027 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:11:12,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:11:12,154 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 05:11:12,154 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:11:12,155 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [653481885] [2024-11-28 05:11:12,155 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [653481885] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:11:12,156 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:11:12,156 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 05:11:12,157 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [402226620] [2024-11-28 05:11:12,158 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:11:12,161 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-28 05:11:12,163 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:11:12,189 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-28 05:11:12,190 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-28 05:11:12,195 INFO L87 Difference]: Start difference. First operand has 228 states, 129 states have (on average 1.9069767441860466) internal successors, (246), 214 states have internal predecessors, (246), 11 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) Second operand has 2 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:11:12,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:11:12,245 INFO L93 Difference]: Finished difference Result 228 states and 257 transitions. [2024-11-28 05:11:12,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-28 05:11:12,247 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 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 4 [2024-11-28 05:11:12,247 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:11:12,255 INFO L225 Difference]: With dead ends: 228 [2024-11-28 05:11:12,256 INFO L226 Difference]: Without dead ends: 226 [2024-11-28 05:11:12,257 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-28 05:11:12,260 INFO L435 NwaCegarLoop]: 257 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, 257 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 05:11:12,261 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 257 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 05:11:12,279 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 226 states. [2024-11-28 05:11:12,317 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 226 to 226. [2024-11-28 05:11:12,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 226 states, 128 states have (on average 1.8203125) internal successors, (233), 212 states have internal predecessors, (233), 11 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-11-28 05:11:12,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226 states to 226 states and 255 transitions. [2024-11-28 05:11:12,333 INFO L78 Accepts]: Start accepts. Automaton has 226 states and 255 transitions. Word has length 4 [2024-11-28 05:11:12,333 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:11:12,333 INFO L471 AbstractCegarLoop]: Abstraction has 226 states and 255 transitions. [2024-11-28 05:11:12,334 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:11:12,334 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states and 255 transitions. [2024-11-28 05:11:12,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-11-28 05:11:12,334 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:11:12,334 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2024-11-28 05:11:12,334 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-28 05:11:12,335 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting zalloc_or_dieErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE === [l0_destroyErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, l0_destroyErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, l0_destroyErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 82 more)] === [2024-11-28 05:11:12,335 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:11:12,335 INFO L85 PathProgramCache]: Analyzing trace with hash -1014375570, now seen corresponding path program 1 times [2024-11-28 05:11:12,337 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:11:12,338 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [915004889] [2024-11-28 05:11:12,338 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:11:12,338 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:11:12,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:11:12,543 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 05:11:12,544 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:11:12,544 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [915004889] [2024-11-28 05:11:12,544 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [915004889] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:11:12,544 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:11:12,544 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 05:11:12,544 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [945904189] [2024-11-28 05:11:12,545 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:11:12,546 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 05:11:12,546 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:11:12,547 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 05:11:12,547 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 05:11:12,547 INFO L87 Difference]: Start difference. First operand 226 states and 255 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:11:12,763 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:11:12,763 INFO L93 Difference]: Finished difference Result 225 states and 254 transitions. [2024-11-28 05:11:12,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 05:11:12,764 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 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 6 [2024-11-28 05:11:12,764 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:11:12,766 INFO L225 Difference]: With dead ends: 225 [2024-11-28 05:11:12,766 INFO L226 Difference]: Without dead ends: 225 [2024-11-28 05:11:12,766 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 05:11:12,767 INFO L435 NwaCegarLoop]: 249 mSDtfsCounter, 4 mSDsluCounter, 168 mSDsCounter, 0 mSdLazyCounter, 86 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 417 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 86 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-28 05:11:12,769 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 417 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 86 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-28 05:11:12,771 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 225 states. [2024-11-28 05:11:12,781 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 225 to 225. [2024-11-28 05:11:12,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 225 states, 128 states have (on average 1.8125) internal successors, (232), 211 states have internal predecessors, (232), 11 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-11-28 05:11:12,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 225 states to 225 states and 254 transitions. [2024-11-28 05:11:12,785 INFO L78 Accepts]: Start accepts. Automaton has 225 states and 254 transitions. Word has length 6 [2024-11-28 05:11:12,785 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:11:12,785 INFO L471 AbstractCegarLoop]: Abstraction has 225 states and 254 transitions. [2024-11-28 05:11:12,785 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:11:12,785 INFO L276 IsEmpty]: Start isEmpty. Operand 225 states and 254 transitions. [2024-11-28 05:11:12,786 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-11-28 05:11:12,786 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:11:12,786 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:11:12,786 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-28 05:11:12,786 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting zalloc_or_dieErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE === [l0_destroyErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, l0_destroyErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, l0_destroyErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 82 more)] === [2024-11-28 05:11:12,786 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:11:12,786 INFO L85 PathProgramCache]: Analyzing trace with hash -1380871358, now seen corresponding path program 1 times [2024-11-28 05:11:12,787 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:11:12,787 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1775280031] [2024-11-28 05:11:12,787 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:11:12,787 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:11:12,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 05:11:12,816 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [709466692] [2024-11-28 05:11:12,816 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:11:12,816 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:11:12,816 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53a965d3-ced8-4afb-8764-90382fa17ae0/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:11:12,818 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53a965d3-ced8-4afb-8764-90382fa17ae0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 05:11:12,821 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53a965d3-ced8-4afb-8764-90382fa17ae0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-28 05:11:12,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:11:12,938 INFO L256 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-11-28 05:11:12,943 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 05:11:13,104 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 6 treesize of output 5 [2024-11-28 05:11:13,135 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 05:11:13,135 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 05:11:13,135 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:11:13,136 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1775280031] [2024-11-28 05:11:13,136 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 05:11:13,138 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [709466692] [2024-11-28 05:11:13,138 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [709466692] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:11:13,138 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:11:13,138 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 05:11:13,138 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1718482566] [2024-11-28 05:11:13,139 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:11:13,139 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 05:11:13,139 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:11:13,140 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 05:11:13,140 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 05:11:13,140 INFO L87 Difference]: Start difference. First operand 225 states and 254 transitions. Second operand has 4 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:11:13,365 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:11:13,365 INFO L93 Difference]: Finished difference Result 234 states and 263 transitions. [2024-11-28 05:11:13,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 05:11:13,365 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 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 7 [2024-11-28 05:11:13,366 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:11:13,367 INFO L225 Difference]: With dead ends: 234 [2024-11-28 05:11:13,367 INFO L226 Difference]: Without dead ends: 234 [2024-11-28 05:11:13,367 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-28 05:11:13,368 INFO L435 NwaCegarLoop]: 244 mSDtfsCounter, 11 mSDsluCounter, 419 mSDsCounter, 0 mSdLazyCounter, 94 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 663 SdHoareTripleChecker+Invalid, 98 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 94 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-28 05:11:13,368 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 663 Invalid, 98 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 94 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-28 05:11:13,373 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 234 states. [2024-11-28 05:11:13,387 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 234 to 234. [2024-11-28 05:11:13,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 234 states, 136 states have (on average 1.7720588235294117) internal successors, (241), 219 states have internal predecessors, (241), 11 states have call successors, (11), 3 states have call predecessors, (11), 3 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-11-28 05:11:13,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 234 states to 234 states and 263 transitions. [2024-11-28 05:11:13,391 INFO L78 Accepts]: Start accepts. Automaton has 234 states and 263 transitions. Word has length 7 [2024-11-28 05:11:13,391 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:11:13,391 INFO L471 AbstractCegarLoop]: Abstraction has 234 states and 263 transitions. [2024-11-28 05:11:13,391 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:11:13,391 INFO L276 IsEmpty]: Start isEmpty. Operand 234 states and 263 transitions. [2024-11-28 05:11:13,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2024-11-28 05:11:13,393 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:11:13,393 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:11:13,402 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53a965d3-ced8-4afb-8764-90382fa17ae0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-28 05:11:13,598 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53a965d3-ced8-4afb-8764-90382fa17ae0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:11:13,598 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting zalloc_or_dieErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE === [l0_destroyErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, l0_destroyErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, l0_destroyErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 82 more)] === [2024-11-28 05:11:13,598 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:11:13,599 INFO L85 PathProgramCache]: Analyzing trace with hash -2072213769, now seen corresponding path program 1 times [2024-11-28 05:11:13,599 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:11:13,600 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [978778106] [2024-11-28 05:11:13,600 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:11:13,600 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:11:13,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 05:11:13,735 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [306150539] [2024-11-28 05:11:13,736 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:11:13,736 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:11:13,736 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53a965d3-ced8-4afb-8764-90382fa17ae0/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:11:13,738 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53a965d3-ced8-4afb-8764-90382fa17ae0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 05:11:13,740 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53a965d3-ced8-4afb-8764-90382fa17ae0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-28 05:11:14,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:11:14,030 INFO L256 TraceCheckSpWp]: Trace formula consists of 500 conjuncts, 79 conjuncts are in the unsatisfiable core [2024-11-28 05:11:14,042 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 05:11:14,135 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2024-11-28 05:11:14,135 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 05:11:14,135 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:11:14,135 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [978778106] [2024-11-28 05:11:14,135 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 05:11:14,135 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [306150539] [2024-11-28 05:11:14,135 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [306150539] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:11:14,135 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:11:14,136 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 05:11:14,136 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1958303138] [2024-11-28 05:11:14,136 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:11:14,136 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 05:11:14,136 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:11:14,137 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 05:11:14,137 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-28 05:11:14,137 INFO L87 Difference]: Start difference. First operand 234 states and 263 transitions. Second operand has 5 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 1 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 05:11:14,224 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:11:14,224 INFO L93 Difference]: Finished difference Result 246 states and 275 transitions. [2024-11-28 05:11:14,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 05:11:14,225 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 1 states have call predecessors, (5), 2 states have call successors, (5) Word has length 66 [2024-11-28 05:11:14,225 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:11:14,226 INFO L225 Difference]: With dead ends: 246 [2024-11-28 05:11:14,226 INFO L226 Difference]: Without dead ends: 236 [2024-11-28 05:11:14,226 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-28 05:11:14,227 INFO L435 NwaCegarLoop]: 250 mSDtfsCounter, 2 mSDsluCounter, 726 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 976 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 05:11:14,227 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 976 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 05:11:14,228 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 236 states. [2024-11-28 05:11:14,234 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 236 to 236. [2024-11-28 05:11:14,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 236 states, 138 states have (on average 1.7608695652173914) internal successors, (243), 221 states have internal predecessors, (243), 11 states have call successors, (11), 3 states have call predecessors, (11), 3 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-11-28 05:11:14,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 236 states to 236 states and 265 transitions. [2024-11-28 05:11:14,237 INFO L78 Accepts]: Start accepts. Automaton has 236 states and 265 transitions. Word has length 66 [2024-11-28 05:11:14,237 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:11:14,237 INFO L471 AbstractCegarLoop]: Abstraction has 236 states and 265 transitions. [2024-11-28 05:11:14,238 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 1 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 05:11:14,238 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states and 265 transitions. [2024-11-28 05:11:14,239 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2024-11-28 05:11:14,239 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:11:14,239 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:11:14,249 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53a965d3-ced8-4afb-8764-90382fa17ae0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-28 05:11:14,442 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53a965d3-ced8-4afb-8764-90382fa17ae0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:11:14,442 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting zalloc_or_dieErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE === [l0_destroyErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, l0_destroyErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, l0_destroyErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 82 more)] === [2024-11-28 05:11:14,442 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:11:14,443 INFO L85 PathProgramCache]: Analyzing trace with hash 875219171, now seen corresponding path program 1 times [2024-11-28 05:11:14,443 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:11:14,443 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [4053464] [2024-11-28 05:11:14,443 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:11:14,443 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:11:14,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 05:11:14,785 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [493106636] [2024-11-28 05:11:14,785 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:11:14,786 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:11:14,786 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53a965d3-ced8-4afb-8764-90382fa17ae0/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:11:14,788 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53a965d3-ced8-4afb-8764-90382fa17ae0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 05:11:14,790 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53a965d3-ced8-4afb-8764-90382fa17ae0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-28 05:11:15,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:11:15,079 INFO L256 TraceCheckSpWp]: Trace formula consists of 575 conjuncts, 33 conjuncts are in the unsatisfiable core [2024-11-28 05:11:15,085 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 05:11:15,133 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 8 treesize of output 7 [2024-11-28 05:11:15,198 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2024-11-28 05:11:15,324 INFO L134 CoverageAnalysis]: Checked inductivity of 140 backedges. 58 proven. 9 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked. [2024-11-28 05:11:15,324 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 05:11:15,629 INFO L134 CoverageAnalysis]: Checked inductivity of 140 backedges. 59 proven. 1 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2024-11-28 05:11:15,629 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:11:15,629 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [4053464] [2024-11-28 05:11:15,629 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 05:11:15,629 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [493106636] [2024-11-28 05:11:15,629 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [493106636] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 05:11:15,629 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-28 05:11:15,629 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6] total 11 [2024-11-28 05:11:15,630 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1471745746] [2024-11-28 05:11:15,630 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-28 05:11:15,630 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-28 05:11:15,630 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:11:15,630 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-28 05:11:15,631 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2024-11-28 05:11:15,631 INFO L87 Difference]: Start difference. First operand 236 states and 265 transitions. Second operand has 11 states, 11 states have (on average 4.0) internal successors, (44), 11 states have internal predecessors, (44), 2 states have call successors, (6), 2 states have call predecessors, (6), 3 states have return successors, (6), 2 states have call predecessors, (6), 1 states have call successors, (6) [2024-11-28 05:11:16,203 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:11:16,203 INFO L93 Difference]: Finished difference Result 255 states and 285 transitions. [2024-11-28 05:11:16,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-28 05:11:16,204 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 4.0) internal successors, (44), 11 states have internal predecessors, (44), 2 states have call successors, (6), 2 states have call predecessors, (6), 3 states have return successors, (6), 2 states have call predecessors, (6), 1 states have call successors, (6) Word has length 71 [2024-11-28 05:11:16,204 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:11:16,205 INFO L225 Difference]: With dead ends: 255 [2024-11-28 05:11:16,205 INFO L226 Difference]: Without dead ends: 240 [2024-11-28 05:11:16,206 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 147 GetRequests, 131 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=99, Invalid=207, Unknown=0, NotChecked=0, Total=306 [2024-11-28 05:11:16,208 INFO L435 NwaCegarLoop]: 248 mSDtfsCounter, 13 mSDsluCounter, 1802 mSDsCounter, 0 mSdLazyCounter, 258 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 2050 SdHoareTripleChecker+Invalid, 269 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 258 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-28 05:11:16,208 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 2050 Invalid, 269 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 258 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-28 05:11:16,210 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 240 states. [2024-11-28 05:11:16,222 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 240 to 240. [2024-11-28 05:11:16,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 240 states, 142 states have (on average 1.7394366197183098) internal successors, (247), 225 states have internal predecessors, (247), 11 states have call successors, (11), 3 states have call predecessors, (11), 3 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-11-28 05:11:16,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 240 states to 240 states and 269 transitions. [2024-11-28 05:11:16,231 INFO L78 Accepts]: Start accepts. Automaton has 240 states and 269 transitions. Word has length 71 [2024-11-28 05:11:16,232 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:11:16,232 INFO L471 AbstractCegarLoop]: Abstraction has 240 states and 269 transitions. [2024-11-28 05:11:16,232 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 4.0) internal successors, (44), 11 states have internal predecessors, (44), 2 states have call successors, (6), 2 states have call predecessors, (6), 3 states have return successors, (6), 2 states have call predecessors, (6), 1 states have call successors, (6) [2024-11-28 05:11:16,232 INFO L276 IsEmpty]: Start isEmpty. Operand 240 states and 269 transitions. [2024-11-28 05:11:16,236 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2024-11-28 05:11:16,236 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:11:16,237 INFO L218 NwaCegarLoop]: trace histogram [20, 6, 6, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:11:16,247 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53a965d3-ced8-4afb-8764-90382fa17ae0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-28 05:11:16,437 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53a965d3-ced8-4afb-8764-90382fa17ae0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:11:16,437 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting zalloc_or_dieErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE === [l0_destroyErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, l0_destroyErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, l0_destroyErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 82 more)] === [2024-11-28 05:11:16,438 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:11:16,438 INFO L85 PathProgramCache]: Analyzing trace with hash -1734562313, now seen corresponding path program 2 times [2024-11-28 05:11:16,438 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:11:16,438 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1307071563] [2024-11-28 05:11:16,438 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 05:11:16,438 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:11:16,763 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 05:11:16,763 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-28 05:11:16,779 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1191926771] [2024-11-28 05:11:16,779 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 05:11:16,780 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:11:16,780 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53a965d3-ced8-4afb-8764-90382fa17ae0/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:11:16,785 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53a965d3-ced8-4afb-8764-90382fa17ae0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 05:11:16,788 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53a965d3-ced8-4afb-8764-90382fa17ae0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-28 05:11:17,313 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 05:11:17,314 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 05:11:17,319 INFO L256 TraceCheckSpWp]: Trace formula consists of 800 conjuncts, 52 conjuncts are in the unsatisfiable core [2024-11-28 05:11:17,325 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 05:11:17,385 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 8 treesize of output 1 [2024-11-28 05:11:17,433 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2024-11-28 05:11:17,627 INFO L134 CoverageAnalysis]: Checked inductivity of 395 backedges. 255 proven. 56 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-11-28 05:11:17,627 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 05:11:18,079 INFO L134 CoverageAnalysis]: Checked inductivity of 395 backedges. 79 proven. 74 refuted. 0 times theorem prover too weak. 242 trivial. 0 not checked. [2024-11-28 05:11:18,079 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:11:18,079 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1307071563] [2024-11-28 05:11:18,079 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 05:11:18,079 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1191926771] [2024-11-28 05:11:18,079 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1191926771] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 05:11:18,079 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-28 05:11:18,079 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 9] total 20 [2024-11-28 05:11:18,079 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [450866084] [2024-11-28 05:11:18,080 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-28 05:11:18,080 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-11-28 05:11:18,080 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:11:18,081 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-11-28 05:11:18,081 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=84, Invalid=296, Unknown=0, NotChecked=0, Total=380 [2024-11-28 05:11:18,081 INFO L87 Difference]: Start difference. First operand 240 states and 269 transitions. Second operand has 20 states, 20 states have (on average 3.0) internal successors, (60), 20 states have internal predecessors, (60), 2 states have call successors, (8), 2 states have call predecessors, (8), 4 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-28 05:11:19,052 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:11:19,052 INFO L93 Difference]: Finished difference Result 262 states and 295 transitions. [2024-11-28 05:11:19,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-28 05:11:19,052 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 3.0) internal successors, (60), 20 states have internal predecessors, (60), 2 states have call successors, (8), 2 states have call predecessors, (8), 4 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 86 [2024-11-28 05:11:19,053 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:11:19,054 INFO L225 Difference]: With dead ends: 262 [2024-11-28 05:11:19,054 INFO L226 Difference]: Without dead ends: 247 [2024-11-28 05:11:19,054 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 184 GetRequests, 152 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 174 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=270, Invalid=852, Unknown=0, NotChecked=0, Total=1122 [2024-11-28 05:11:19,055 INFO L435 NwaCegarLoop]: 248 mSDtfsCounter, 20 mSDsluCounter, 3506 mSDsCounter, 0 mSdLazyCounter, 433 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 3754 SdHoareTripleChecker+Invalid, 445 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 433 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-28 05:11:19,055 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 3754 Invalid, 445 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 433 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-28 05:11:19,056 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 247 states. [2024-11-28 05:11:19,061 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 247 to 247. [2024-11-28 05:11:19,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 247 states, 149 states have (on average 1.7046979865771812) internal successors, (254), 232 states have internal predecessors, (254), 11 states have call successors, (11), 3 states have call predecessors, (11), 3 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-11-28 05:11:19,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 247 states to 247 states and 276 transitions. [2024-11-28 05:11:19,064 INFO L78 Accepts]: Start accepts. Automaton has 247 states and 276 transitions. Word has length 86 [2024-11-28 05:11:19,064 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:11:19,064 INFO L471 AbstractCegarLoop]: Abstraction has 247 states and 276 transitions. [2024-11-28 05:11:19,065 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 3.0) internal successors, (60), 20 states have internal predecessors, (60), 2 states have call successors, (8), 2 states have call predecessors, (8), 4 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-28 05:11:19,065 INFO L276 IsEmpty]: Start isEmpty. Operand 247 states and 276 transitions. [2024-11-28 05:11:19,066 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2024-11-28 05:11:19,066 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:11:19,066 INFO L218 NwaCegarLoop]: trace histogram [40, 6, 6, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:11:19,080 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53a965d3-ced8-4afb-8764-90382fa17ae0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-28 05:11:19,269 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53a965d3-ced8-4afb-8764-90382fa17ae0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:11:19,270 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting zalloc_or_dieErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE === [l0_destroyErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, l0_destroyErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, l0_destroyErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 82 more)] === [2024-11-28 05:11:19,270 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:11:19,270 INFO L85 PathProgramCache]: Analyzing trace with hash 1087788279, now seen corresponding path program 3 times [2024-11-28 05:11:19,270 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:11:19,271 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [835599259] [2024-11-28 05:11:19,271 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-28 05:11:19,271 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:11:20,077 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 18 check-sat command(s) [2024-11-28 05:11:20,077 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-28 05:11:20,088 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1099629737] [2024-11-28 05:11:20,090 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-28 05:11:20,090 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:11:20,091 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53a965d3-ced8-4afb-8764-90382fa17ae0/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:11:20,093 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53a965d3-ced8-4afb-8764-90382fa17ae0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 05:11:20,097 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53a965d3-ced8-4afb-8764-90382fa17ae0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-28 05:11:20,332 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-11-28 05:11:20,332 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 05:11:20,335 INFO L256 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-11-28 05:11:20,339 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 05:11:20,369 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 6 treesize of output 5 [2024-11-28 05:11:20,389 INFO L134 CoverageAnalysis]: Checked inductivity of 1085 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 1070 trivial. 0 not checked. [2024-11-28 05:11:20,389 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 05:11:20,389 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:11:20,390 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [835599259] [2024-11-28 05:11:20,390 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 05:11:20,390 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1099629737] [2024-11-28 05:11:20,390 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1099629737] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:11:20,390 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:11:20,390 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 05:11:20,390 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1437961949] [2024-11-28 05:11:20,390 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:11:20,390 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 05:11:20,391 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:11:20,391 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 05:11:20,391 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 05:11:20,391 INFO L87 Difference]: Start difference. First operand 247 states and 276 transitions. Second operand has 4 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 1 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-28 05:11:20,558 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:11:20,559 INFO L93 Difference]: Finished difference Result 246 states and 275 transitions. [2024-11-28 05:11:20,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 05:11:20,560 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 1 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 106 [2024-11-28 05:11:20,560 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:11:20,561 INFO L225 Difference]: With dead ends: 246 [2024-11-28 05:11:20,561 INFO L226 Difference]: Without dead ends: 246 [2024-11-28 05:11:20,561 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 103 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-28 05:11:20,562 INFO L435 NwaCegarLoop]: 256 mSDtfsCounter, 11 mSDsluCounter, 429 mSDsCounter, 0 mSdLazyCounter, 87 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 685 SdHoareTripleChecker+Invalid, 87 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 87 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 05:11:20,562 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 685 Invalid, 87 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 87 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 05:11:20,563 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 246 states. [2024-11-28 05:11:20,570 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 246 to 246. [2024-11-28 05:11:20,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 246 states, 149 states have (on average 1.6979865771812082) internal successors, (253), 231 states have internal predecessors, (253), 11 states have call successors, (11), 3 states have call predecessors, (11), 3 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-11-28 05:11:20,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 246 states to 246 states and 275 transitions. [2024-11-28 05:11:20,576 INFO L78 Accepts]: Start accepts. Automaton has 246 states and 275 transitions. Word has length 106 [2024-11-28 05:11:20,577 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:11:20,578 INFO L471 AbstractCegarLoop]: Abstraction has 246 states and 275 transitions. [2024-11-28 05:11:20,578 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 1 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-28 05:11:20,578 INFO L276 IsEmpty]: Start isEmpty. Operand 246 states and 275 transitions. [2024-11-28 05:11:20,582 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2024-11-28 05:11:20,582 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:11:20,582 INFO L218 NwaCegarLoop]: trace histogram [45, 6, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:11:20,596 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53a965d3-ced8-4afb-8764-90382fa17ae0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-28 05:11:20,782 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53a965d3-ced8-4afb-8764-90382fa17ae0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:11:20,783 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [l0_destroyErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, l0_destroyErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, l0_destroyErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 82 more)] === [2024-11-28 05:11:20,783 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:11:20,783 INFO L85 PathProgramCache]: Analyzing trace with hash -1036996506, now seen corresponding path program 1 times [2024-11-28 05:11:20,783 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:11:20,783 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1195939920] [2024-11-28 05:11:20,783 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:11:20,784 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:11:20,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:11:22,490 INFO L134 CoverageAnalysis]: Checked inductivity of 1395 backedges. 658 proven. 4 refuted. 0 times theorem prover too weak. 733 trivial. 0 not checked. [2024-11-28 05:11:22,490 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:11:22,490 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1195939920] [2024-11-28 05:11:22,490 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1195939920] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 05:11:22,491 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1014074019] [2024-11-28 05:11:22,491 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:11:22,491 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:11:22,491 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53a965d3-ced8-4afb-8764-90382fa17ae0/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:11:22,493 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53a965d3-ced8-4afb-8764-90382fa17ae0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 05:11:22,497 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53a965d3-ced8-4afb-8764-90382fa17ae0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-28 05:11:22,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:11:22,956 INFO L256 TraceCheckSpWp]: Trace formula consists of 1204 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-11-28 05:11:22,963 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 05:11:23,056 WARN L873 $PredicateComparison]: unable to prove that (exists ((|zalloc_or_die_#Ultimate.C_memset_#ptr#1.base| Int)) (= (store |c_old(#valid)| |zalloc_or_die_#Ultimate.C_memset_#ptr#1.base| 1) |c_#valid|)) is different from true [2024-11-28 05:11:23,132 INFO L349 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2024-11-28 05:11:23,133 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 12 treesize of output 14 [2024-11-28 05:11:23,151 INFO L134 CoverageAnalysis]: Checked inductivity of 1395 backedges. 601 proven. 1 refuted. 0 times theorem prover too weak. 733 trivial. 60 not checked. [2024-11-28 05:11:23,151 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 05:11:23,462 INFO L349 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size [2024-11-28 05:11:23,463 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 12 treesize of output 11 [2024-11-28 05:11:23,493 INFO L134 CoverageAnalysis]: Checked inductivity of 1395 backedges. 601 proven. 61 refuted. 0 times theorem prover too weak. 733 trivial. 0 not checked. [2024-11-28 05:11:23,493 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1014074019] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 05:11:23,493 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 05:11:23,493 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 11, 10] total 15 [2024-11-28 05:11:23,493 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1803469693] [2024-11-28 05:11:23,494 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 05:11:23,494 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-28 05:11:23,494 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:11:23,495 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-28 05:11:23,495 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=172, Unknown=1, NotChecked=26, Total=240 [2024-11-28 05:11:23,496 INFO L87 Difference]: Start difference. First operand 246 states and 275 transitions. Second operand has 16 states, 15 states have (on average 4.0) internal successors, (60), 14 states have internal predecessors, (60), 2 states have call successors, (7), 3 states have call predecessors, (7), 5 states have return successors, (8), 3 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-28 05:11:24,246 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:11:24,246 INFO L93 Difference]: Finished difference Result 345 states and 393 transitions. [2024-11-28 05:11:24,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-28 05:11:24,247 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 4.0) internal successors, (60), 14 states have internal predecessors, (60), 2 states have call successors, (7), 3 states have call predecessors, (7), 5 states have return successors, (8), 3 states have call predecessors, (8), 2 states have call successors, (8) Word has length 118 [2024-11-28 05:11:24,248 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:11:24,252 INFO L225 Difference]: With dead ends: 345 [2024-11-28 05:11:24,252 INFO L226 Difference]: Without dead ends: 345 [2024-11-28 05:11:24,252 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 250 GetRequests, 228 SyntacticMatches, 4 SemanticMatches, 18 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=68, Invalid=277, Unknown=1, NotChecked=34, Total=380 [2024-11-28 05:11:24,253 INFO L435 NwaCegarLoop]: 202 mSDtfsCounter, 237 mSDsluCounter, 1245 mSDsCounter, 0 mSdLazyCounter, 778 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 237 SdHoareTripleChecker+Valid, 1447 SdHoareTripleChecker+Invalid, 1162 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 778 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 363 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-28 05:11:24,253 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [237 Valid, 1447 Invalid, 1162 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 778 Invalid, 0 Unknown, 363 Unchecked, 0.6s Time] [2024-11-28 05:11:24,254 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 345 states. [2024-11-28 05:11:24,263 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 345 to 244. [2024-11-28 05:11:24,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 244 states, 149 states have (on average 1.6845637583892616) internal successors, (251), 229 states have internal predecessors, (251), 11 states have call successors, (11), 3 states have call predecessors, (11), 3 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-11-28 05:11:24,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 244 states to 244 states and 273 transitions. [2024-11-28 05:11:24,268 INFO L78 Accepts]: Start accepts. Automaton has 244 states and 273 transitions. Word has length 118 [2024-11-28 05:11:24,269 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:11:24,269 INFO L471 AbstractCegarLoop]: Abstraction has 244 states and 273 transitions. [2024-11-28 05:11:24,269 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 4.0) internal successors, (60), 14 states have internal predecessors, (60), 2 states have call successors, (7), 3 states have call predecessors, (7), 5 states have return successors, (8), 3 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-28 05:11:24,269 INFO L276 IsEmpty]: Start isEmpty. Operand 244 states and 273 transitions. [2024-11-28 05:11:24,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2024-11-28 05:11:24,274 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:11:24,274 INFO L218 NwaCegarLoop]: trace histogram [45, 6, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:11:24,285 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53a965d3-ced8-4afb-8764-90382fa17ae0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-11-28 05:11:24,478 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53a965d3-ced8-4afb-8764-90382fa17ae0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:11:24,479 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [l0_destroyErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, l0_destroyErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, l0_destroyErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 82 more)] === [2024-11-28 05:11:24,479 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:11:24,479 INFO L85 PathProgramCache]: Analyzing trace with hash -1036996505, now seen corresponding path program 1 times [2024-11-28 05:11:24,479 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:11:24,479 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [111027291] [2024-11-28 05:11:24,479 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:11:24,479 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:11:24,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:11:27,792 INFO L134 CoverageAnalysis]: Checked inductivity of 1395 backedges. 601 proven. 97 refuted. 0 times theorem prover too weak. 697 trivial. 0 not checked. [2024-11-28 05:11:27,792 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:11:27,792 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [111027291] [2024-11-28 05:11:27,793 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [111027291] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 05:11:27,793 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1570297875] [2024-11-28 05:11:27,793 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:11:27,793 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:11:27,793 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53a965d3-ced8-4afb-8764-90382fa17ae0/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:11:27,795 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53a965d3-ced8-4afb-8764-90382fa17ae0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 05:11:27,798 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53a965d3-ced8-4afb-8764-90382fa17ae0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-28 05:11:29,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:11:29,167 INFO L256 TraceCheckSpWp]: Trace formula consists of 1204 conjuncts, 102 conjuncts are in the unsatisfiable core [2024-11-28 05:11:29,176 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 05:11:29,507 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 8 treesize of output 1 [2024-11-28 05:12:07,456 WARN L873 $PredicateComparison]: unable to prove that (exists ((|zalloc_or_die_#Ultimate.C_memset_#ptr#1.base| Int)) (and (= (store |c_old(#length)| |zalloc_or_die_#Ultimate.C_memset_#ptr#1.base| (select |c_#length| |zalloc_or_die_#Ultimate.C_memset_#ptr#1.base|)) |c_#length|) (= (select |c_old(#valid)| |zalloc_or_die_#Ultimate.C_memset_#ptr#1.base|) 0))) is different from true [2024-11-28 05:12:07,533 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 05:12:07,534 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 9 [2024-11-28 05:12:07,546 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2024-11-28 05:12:07,546 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2024-11-28 05:12:07,550 INFO L134 CoverageAnalysis]: Checked inductivity of 1395 backedges. 385 proven. 588 refuted. 0 times theorem prover too weak. 265 trivial. 157 not checked. [2024-11-28 05:12:07,551 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 05:12:07,821 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1570297875] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 05:12:07,821 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-28 05:12:07,821 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 29] total 40 [2024-11-28 05:12:07,821 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2017736460] [2024-11-28 05:12:07,822 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-28 05:12:07,824 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 41 states [2024-11-28 05:12:07,824 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:12:07,825 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2024-11-28 05:12:07,826 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=134, Invalid=1582, Unknown=10, NotChecked=80, Total=1806 [2024-11-28 05:12:07,826 INFO L87 Difference]: Start difference. First operand 244 states and 273 transitions. Second operand has 41 states, 39 states have (on average 1.9743589743589745) internal successors, (77), 38 states have internal predecessors, (77), 2 states have call successors, (6), 2 states have call predecessors, (6), 4 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-28 05:12:10,226 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.32s for a HTC check with result VALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2024-11-28 05:12:18,425 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2024-11-28 05:12:21,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:12:21,897 INFO L93 Difference]: Finished difference Result 353 states and 406 transitions. [2024-11-28 05:12:21,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2024-11-28 05:12:21,898 INFO L78 Accepts]: Start accepts. Automaton has has 41 states, 39 states have (on average 1.9743589743589745) internal successors, (77), 38 states have internal predecessors, (77), 2 states have call successors, (6), 2 states have call predecessors, (6), 4 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) Word has length 118 [2024-11-28 05:12:21,898 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:12:21,900 INFO L225 Difference]: With dead ends: 353 [2024-11-28 05:12:21,900 INFO L226 Difference]: Without dead ends: 353 [2024-11-28 05:12:21,902 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 156 GetRequests, 98 SyntacticMatches, 1 SemanticMatches, 57 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 612 ImplicationChecksByTransitivity, 40.1s TimeCoverageRelationStatistics Valid=289, Invalid=3011, Unknown=10, NotChecked=112, Total=3422 [2024-11-28 05:12:21,902 INFO L435 NwaCegarLoop]: 115 mSDtfsCounter, 365 mSDsluCounter, 1823 mSDsCounter, 0 mSdLazyCounter, 5297 mSolverCounterSat, 25 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 365 SdHoareTripleChecker+Valid, 1938 SdHoareTripleChecker+Invalid, 5684 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 5297 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 361 IncrementalHoareTripleChecker+Unchecked, 12.3s IncrementalHoareTripleChecker+Time [2024-11-28 05:12:21,903 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [365 Valid, 1938 Invalid, 5684 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 5297 Invalid, 1 Unknown, 361 Unchecked, 12.3s Time] [2024-11-28 05:12:21,903 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 353 states. [2024-11-28 05:12:21,910 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 353 to 242. [2024-11-28 05:12:21,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 242 states, 149 states have (on average 1.6711409395973154) internal successors, (249), 227 states have internal predecessors, (249), 11 states have call successors, (11), 3 states have call predecessors, (11), 3 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-11-28 05:12:21,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 242 states to 242 states and 271 transitions. [2024-11-28 05:12:21,913 INFO L78 Accepts]: Start accepts. Automaton has 242 states and 271 transitions. Word has length 118 [2024-11-28 05:12:21,913 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:12:21,913 INFO L471 AbstractCegarLoop]: Abstraction has 242 states and 271 transitions. [2024-11-28 05:12:21,913 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 41 states, 39 states have (on average 1.9743589743589745) internal successors, (77), 38 states have internal predecessors, (77), 2 states have call successors, (6), 2 states have call predecessors, (6), 4 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-28 05:12:21,913 INFO L276 IsEmpty]: Start isEmpty. Operand 242 states and 271 transitions. [2024-11-28 05:12:21,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2024-11-28 05:12:21,914 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:12:21,915 INFO L218 NwaCegarLoop]: trace histogram [45, 6, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:12:21,938 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53a965d3-ced8-4afb-8764-90382fa17ae0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-28 05:12:22,115 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53a965d3-ced8-4afb-8764-90382fa17ae0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:12:22,115 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [l0_destroyErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, l0_destroyErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, l0_destroyErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 82 more)] === [2024-11-28 05:12:22,116 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:12:22,116 INFO L85 PathProgramCache]: Analyzing trace with hash -121222137, now seen corresponding path program 1 times [2024-11-28 05:12:22,116 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:12:22,117 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [379724303] [2024-11-28 05:12:22,117 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:12:22,117 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:12:22,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:12:23,771 INFO L134 CoverageAnalysis]: Checked inductivity of 1395 backedges. 833 proven. 96 refuted. 0 times theorem prover too weak. 466 trivial. 0 not checked. [2024-11-28 05:12:23,772 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:12:23,772 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [379724303] [2024-11-28 05:12:23,772 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [379724303] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 05:12:23,772 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [453023963] [2024-11-28 05:12:23,772 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:12:23,772 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:12:23,772 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53a965d3-ced8-4afb-8764-90382fa17ae0/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:12:23,774 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53a965d3-ced8-4afb-8764-90382fa17ae0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 05:12:23,777 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53a965d3-ced8-4afb-8764-90382fa17ae0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-28 05:12:24,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:12:24,299 INFO L256 TraceCheckSpWp]: Trace formula consists of 1221 conjuncts, 33 conjuncts are in the unsatisfiable core [2024-11-28 05:12:24,304 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 05:12:24,411 WARN L873 $PredicateComparison]: unable to prove that (exists ((|zalloc_or_die_#Ultimate.C_memset_#ptr#1.base| Int)) (= (store |c_old(#valid)| |zalloc_or_die_#Ultimate.C_memset_#ptr#1.base| 1) |c_#valid|)) is different from true [2024-11-28 05:12:24,463 INFO L349 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2024-11-28 05:12:24,464 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 12 treesize of output 14 [2024-11-28 05:12:24,534 INFO L349 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2024-11-28 05:12:24,534 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 12 treesize of output 14 [2024-11-28 05:12:24,551 INFO L134 CoverageAnalysis]: Checked inductivity of 1395 backedges. 719 proven. 2 refuted. 0 times theorem prover too weak. 527 trivial. 147 not checked. [2024-11-28 05:12:24,551 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 05:12:25,082 INFO L349 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size [2024-11-28 05:12:25,082 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 12 treesize of output 11 [2024-11-28 05:12:25,101 INFO L134 CoverageAnalysis]: Checked inductivity of 1395 backedges. 719 proven. 149 refuted. 0 times theorem prover too weak. 527 trivial. 0 not checked. [2024-11-28 05:12:25,101 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [453023963] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 05:12:25,101 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 05:12:25,102 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 12, 11] total 22 [2024-11-28 05:12:25,102 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [88320004] [2024-11-28 05:12:25,102 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 05:12:25,102 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-28 05:12:25,102 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:12:25,103 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-28 05:12:25,103 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=403, Unknown=1, NotChecked=40, Total=506 [2024-11-28 05:12:25,105 INFO L87 Difference]: Start difference. First operand 242 states and 271 transitions. Second operand has 23 states, 22 states have (on average 3.3181818181818183) internal successors, (73), 20 states have internal predecessors, (73), 3 states have call successors, (9), 3 states have call predecessors, (9), 6 states have return successors, (10), 5 states have call predecessors, (10), 3 states have call successors, (10) [2024-11-28 05:12:26,361 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:12:26,362 INFO L93 Difference]: Finished difference Result 340 states and 388 transitions. [2024-11-28 05:12:26,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-28 05:12:26,362 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 22 states have (on average 3.3181818181818183) internal successors, (73), 20 states have internal predecessors, (73), 3 states have call successors, (9), 3 states have call predecessors, (9), 6 states have return successors, (10), 5 states have call predecessors, (10), 3 states have call successors, (10) Word has length 120 [2024-11-28 05:12:26,363 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:12:26,364 INFO L225 Difference]: With dead ends: 340 [2024-11-28 05:12:26,365 INFO L226 Difference]: Without dead ends: 340 [2024-11-28 05:12:26,366 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 264 GetRequests, 230 SyntacticMatches, 8 SemanticMatches, 26 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 76 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=99, Invalid=606, Unknown=1, NotChecked=50, Total=756 [2024-11-28 05:12:26,367 INFO L435 NwaCegarLoop]: 191 mSDtfsCounter, 914 mSDsluCounter, 2025 mSDsCounter, 0 mSdLazyCounter, 1344 mSolverCounterSat, 76 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 914 SdHoareTripleChecker+Valid, 2216 SdHoareTripleChecker+Invalid, 1778 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 76 IncrementalHoareTripleChecker+Valid, 1344 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 358 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-28 05:12:26,367 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [914 Valid, 2216 Invalid, 1778 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [76 Valid, 1344 Invalid, 0 Unknown, 358 Unchecked, 1.1s Time] [2024-11-28 05:12:26,369 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 340 states. [2024-11-28 05:12:26,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 340 to 239. [2024-11-28 05:12:26,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 239 states, 149 states have (on average 1.651006711409396) internal successors, (246), 224 states have internal predecessors, (246), 11 states have call successors, (11), 3 states have call predecessors, (11), 3 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-11-28 05:12:26,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 239 states to 239 states and 268 transitions. [2024-11-28 05:12:26,386 INFO L78 Accepts]: Start accepts. Automaton has 239 states and 268 transitions. Word has length 120 [2024-11-28 05:12:26,386 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:12:26,386 INFO L471 AbstractCegarLoop]: Abstraction has 239 states and 268 transitions. [2024-11-28 05:12:26,386 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 22 states have (on average 3.3181818181818183) internal successors, (73), 20 states have internal predecessors, (73), 3 states have call successors, (9), 3 states have call predecessors, (9), 6 states have return successors, (10), 5 states have call predecessors, (10), 3 states have call successors, (10) [2024-11-28 05:12:26,388 INFO L276 IsEmpty]: Start isEmpty. Operand 239 states and 268 transitions. [2024-11-28 05:12:26,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2024-11-28 05:12:26,389 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:12:26,389 INFO L218 NwaCegarLoop]: trace histogram [45, 6, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:12:26,401 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53a965d3-ced8-4afb-8764-90382fa17ae0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-11-28 05:12:26,589 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53a965d3-ced8-4afb-8764-90382fa17ae0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:12:26,589 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [l0_destroyErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, l0_destroyErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, l0_destroyErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 82 more)] === [2024-11-28 05:12:26,590 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:12:26,590 INFO L85 PathProgramCache]: Analyzing trace with hash -121222136, now seen corresponding path program 1 times [2024-11-28 05:12:26,590 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:12:26,590 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1589071784] [2024-11-28 05:12:26,590 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:12:26,590 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:12:26,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:12:29,775 INFO L134 CoverageAnalysis]: Checked inductivity of 1395 backedges. 719 proven. 246 refuted. 0 times theorem prover too weak. 430 trivial. 0 not checked. [2024-11-28 05:12:29,775 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:12:29,776 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1589071784] [2024-11-28 05:12:29,776 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1589071784] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 05:12:29,776 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1888006197] [2024-11-28 05:12:29,776 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:12:29,776 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:12:29,776 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53a965d3-ced8-4afb-8764-90382fa17ae0/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:12:29,780 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53a965d3-ced8-4afb-8764-90382fa17ae0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 05:12:29,783 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53a965d3-ced8-4afb-8764-90382fa17ae0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-28 05:12:30,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:12:30,837 INFO L256 TraceCheckSpWp]: Trace formula consists of 1221 conjuncts, 124 conjuncts are in the unsatisfiable core [2024-11-28 05:12:30,864 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 05:12:31,104 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 10 treesize of output 9 [2024-11-28 05:12:37,412 WARN L873 $PredicateComparison]: unable to prove that (exists ((|zalloc_or_die_#Ultimate.C_memset_#ptr#1.base| Int)) (and (= (store |c_old(#length)| |zalloc_or_die_#Ultimate.C_memset_#ptr#1.base| (select |c_#length| |zalloc_or_die_#Ultimate.C_memset_#ptr#1.base|)) |c_#length|) (= |c_#valid| (store |c_old(#valid)| |zalloc_or_die_#Ultimate.C_memset_#ptr#1.base| (select |c_#valid| |zalloc_or_die_#Ultimate.C_memset_#ptr#1.base|))) (= (select |c_old(#valid)| |zalloc_or_die_#Ultimate.C_memset_#ptr#1.base|) 0))) is different from true [2024-11-28 05:12:38,103 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 05:12:38,104 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 13 [2024-11-28 05:12:38,119 INFO L349 Elim1Store]: treesize reduction 20, result has 33.3 percent of original size [2024-11-28 05:12:38,119 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 19 treesize of output 16 [2024-11-28 05:12:38,158 WARN L873 $PredicateComparison]: unable to prove that (exists ((|zalloc_or_die_#Ultimate.C_memset_#ptr#1.base| Int)) (and (= (store |c_old(#length)| |zalloc_or_die_#Ultimate.C_memset_#ptr#1.base| (select |c_#length| |zalloc_or_die_#Ultimate.C_memset_#ptr#1.base|)) |c_#length|) (= (select |c_old(#valid)| |zalloc_or_die_#Ultimate.C_memset_#ptr#1.base|) 0))) is different from true [2024-11-28 05:12:38,264 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 05:12:38,265 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 13 [2024-11-28 05:12:38,286 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2024-11-28 05:12:38,286 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2024-11-28 05:12:38,429 INFO L134 CoverageAnalysis]: Checked inductivity of 1395 backedges. 425 proven. 568 refuted. 0 times theorem prover too weak. 129 trivial. 273 not checked. [2024-11-28 05:12:38,429 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 05:12:38,647 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1888006197] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 05:12:38,647 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-28 05:12:38,647 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 36] total 57 [2024-11-28 05:12:38,647 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1243221175] [2024-11-28 05:12:38,647 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-28 05:12:38,648 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 58 states [2024-11-28 05:12:38,648 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:12:38,648 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 58 interpolants. [2024-11-28 05:12:38,650 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=195, Invalid=3117, Unknown=2, NotChecked=226, Total=3540 [2024-11-28 05:12:38,650 INFO L87 Difference]: Start difference. First operand 239 states and 268 transitions. Second operand has 58 states, 57 states have (on average 1.9824561403508771) internal successors, (113), 55 states have internal predecessors, (113), 3 states have call successors, (8), 2 states have call predecessors, (8), 7 states have return successors, (9), 7 states have call predecessors, (9), 3 states have call successors, (9) [2024-11-28 05:12:42,707 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2024-11-28 05:12:50,311 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:12:50,311 INFO L93 Difference]: Finished difference Result 345 states and 396 transitions. [2024-11-28 05:12:50,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-11-28 05:12:50,312 INFO L78 Accepts]: Start accepts. Automaton has has 58 states, 57 states have (on average 1.9824561403508771) internal successors, (113), 55 states have internal predecessors, (113), 3 states have call successors, (8), 2 states have call predecessors, (8), 7 states have return successors, (9), 7 states have call predecessors, (9), 3 states have call successors, (9) Word has length 120 [2024-11-28 05:12:50,312 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:12:50,314 INFO L225 Difference]: With dead ends: 345 [2024-11-28 05:12:50,314 INFO L226 Difference]: Without dead ends: 345 [2024-11-28 05:12:50,315 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 167 GetRequests, 90 SyntacticMatches, 3 SemanticMatches, 74 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 1406 ImplicationChecksByTransitivity, 10.0s TimeCoverageRelationStatistics Valid=383, Invalid=5025, Unknown=2, NotChecked=290, Total=5700 [2024-11-28 05:12:50,316 INFO L435 NwaCegarLoop]: 104 mSDtfsCounter, 403 mSDsluCounter, 1621 mSDsCounter, 0 mSdLazyCounter, 5522 mSolverCounterSat, 29 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 403 SdHoareTripleChecker+Valid, 1725 SdHoareTripleChecker+Invalid, 6275 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 5522 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 723 IncrementalHoareTripleChecker+Unchecked, 9.1s IncrementalHoareTripleChecker+Time [2024-11-28 05:12:50,316 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [403 Valid, 1725 Invalid, 6275 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 5522 Invalid, 1 Unknown, 723 Unchecked, 9.1s Time] [2024-11-28 05:12:50,317 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 345 states. [2024-11-28 05:12:50,322 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 345 to 236. [2024-11-28 05:12:50,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 236 states, 149 states have (on average 1.6308724832214765) internal successors, (243), 221 states have internal predecessors, (243), 11 states have call successors, (11), 3 states have call predecessors, (11), 3 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-11-28 05:12:50,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 236 states to 236 states and 265 transitions. [2024-11-28 05:12:50,324 INFO L78 Accepts]: Start accepts. Automaton has 236 states and 265 transitions. Word has length 120 [2024-11-28 05:12:50,325 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:12:50,325 INFO L471 AbstractCegarLoop]: Abstraction has 236 states and 265 transitions. [2024-11-28 05:12:50,325 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 58 states, 57 states have (on average 1.9824561403508771) internal successors, (113), 55 states have internal predecessors, (113), 3 states have call successors, (8), 2 states have call predecessors, (8), 7 states have return successors, (9), 7 states have call predecessors, (9), 3 states have call successors, (9) [2024-11-28 05:12:50,325 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states and 265 transitions. [2024-11-28 05:12:50,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2024-11-28 05:12:50,326 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:12:50,327 INFO L218 NwaCegarLoop]: trace histogram [45, 6, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:12:50,345 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53a965d3-ced8-4afb-8764-90382fa17ae0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2024-11-28 05:12:50,527 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53a965d3-ced8-4afb-8764-90382fa17ae0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2024-11-28 05:12:50,527 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr8REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [l0_destroyErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, l0_destroyErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, l0_destroyErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 82 more)] === [2024-11-28 05:12:50,527 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:12:50,528 INFO L85 PathProgramCache]: Analyzing trace with hash 977060691, now seen corresponding path program 1 times [2024-11-28 05:12:50,528 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:12:50,528 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [814383791] [2024-11-28 05:12:50,528 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:12:50,528 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:12:50,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:12:52,561 INFO L134 CoverageAnalysis]: Checked inductivity of 1395 backedges. 773 proven. 245 refuted. 0 times theorem prover too weak. 377 trivial. 0 not checked. [2024-11-28 05:12:52,561 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:12:52,561 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [814383791] [2024-11-28 05:12:52,562 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [814383791] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 05:12:52,562 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [526821627] [2024-11-28 05:12:52,562 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:12:52,562 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:12:52,562 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53a965d3-ced8-4afb-8764-90382fa17ae0/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:12:52,564 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53a965d3-ced8-4afb-8764-90382fa17ae0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 05:12:52,568 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53a965d3-ced8-4afb-8764-90382fa17ae0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-28 05:12:53,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:12:53,124 INFO L256 TraceCheckSpWp]: Trace formula consists of 1266 conjuncts, 42 conjuncts are in the unsatisfiable core [2024-11-28 05:12:53,129 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 05:12:53,234 WARN L873 $PredicateComparison]: unable to prove that (exists ((|zalloc_or_die_#Ultimate.C_memset_#ptr#1.base| Int)) (and (= (store |c_old(#valid)| |zalloc_or_die_#Ultimate.C_memset_#ptr#1.base| 1) |c_#valid|) (= (select |c_old(#valid)| |zalloc_or_die_#Ultimate.C_memset_#ptr#1.base|) 0))) is different from true [2024-11-28 05:12:53,314 INFO L349 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2024-11-28 05:12:53,315 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2024-11-28 05:12:53,382 WARN L873 $PredicateComparison]: unable to prove that (exists ((|zalloc_or_die_#Ultimate.C_memset_#ptr#1.base| Int)) (and (= |c_#valid| (store |c_old(#valid)| |zalloc_or_die_#Ultimate.C_memset_#ptr#1.base| (select |c_#valid| |zalloc_or_die_#Ultimate.C_memset_#ptr#1.base|))) (= (select |c_old(#valid)| |zalloc_or_die_#Ultimate.C_memset_#ptr#1.base|) 0))) is different from true [2024-11-28 05:12:53,487 INFO L349 Elim1Store]: treesize reduction 40, result has 32.2 percent of original size [2024-11-28 05:12:53,487 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 24 treesize of output 28 [2024-11-28 05:12:53,536 WARN L873 $PredicateComparison]: unable to prove that (exists ((|zalloc_or_die_#Ultimate.C_memset_#ptr#1.base| Int)) (= (store |c_old(#valid)| |zalloc_or_die_#Ultimate.C_memset_#ptr#1.base| 1) |c_#valid|)) is different from true [2024-11-28 05:12:53,583 INFO L349 Elim1Store]: treesize reduction 28, result has 28.2 percent of original size [2024-11-28 05:12:53,583 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 22 [2024-11-28 05:12:53,681 INFO L134 CoverageAnalysis]: Checked inductivity of 1395 backedges. 659 proven. 3 refuted. 0 times theorem prover too weak. 289 trivial. 444 not checked. [2024-11-28 05:12:53,682 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 05:12:53,961 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [526821627] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 05:12:53,961 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-28 05:12:53,961 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 16] total 28 [2024-11-28 05:12:53,961 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1392352631] [2024-11-28 05:12:53,961 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-28 05:12:53,962 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2024-11-28 05:12:53,962 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:12:53,962 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2024-11-28 05:12:53,963 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=98, Invalid=723, Unknown=3, NotChecked=168, Total=992 [2024-11-28 05:12:53,963 INFO L87 Difference]: Start difference. First operand 236 states and 265 transitions. Second operand has 29 states, 28 states have (on average 3.607142857142857) internal successors, (101), 25 states have internal predecessors, (101), 5 states have call successors, (8), 2 states have call predecessors, (8), 7 states have return successors, (9), 6 states have call predecessors, (9), 5 states have call successors, (9) [2024-11-28 05:12:55,365 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:12:55,365 INFO L93 Difference]: Finished difference Result 334 states and 382 transitions. [2024-11-28 05:12:55,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-28 05:12:55,365 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 28 states have (on average 3.607142857142857) internal successors, (101), 25 states have internal predecessors, (101), 5 states have call successors, (8), 2 states have call predecessors, (8), 7 states have return successors, (9), 6 states have call predecessors, (9), 5 states have call successors, (9) Word has length 126 [2024-11-28 05:12:55,365 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:12:55,367 INFO L225 Difference]: With dead ends: 334 [2024-11-28 05:12:55,367 INFO L226 Difference]: Without dead ends: 334 [2024-11-28 05:12:55,367 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 189 GetRequests, 149 SyntacticMatches, 4 SemanticMatches, 36 ConstructedPredicates, 3 IntricatePredicates, 0 DeprecatedPredicates, 206 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=153, Invalid=1046, Unknown=3, NotChecked=204, Total=1406 [2024-11-28 05:12:55,368 INFO L435 NwaCegarLoop]: 181 mSDtfsCounter, 493 mSDsluCounter, 2517 mSDsCounter, 0 mSdLazyCounter, 1650 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 493 SdHoareTripleChecker+Valid, 2698 SdHoareTripleChecker+Invalid, 2751 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 1650 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 1055 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-28 05:12:55,368 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [493 Valid, 2698 Invalid, 2751 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 1650 Invalid, 0 Unknown, 1055 Unchecked, 1.1s Time] [2024-11-28 05:12:55,368 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 334 states. [2024-11-28 05:12:55,374 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 334 to 233. [2024-11-28 05:12:55,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 233 states, 149 states have (on average 1.610738255033557) internal successors, (240), 218 states have internal predecessors, (240), 11 states have call successors, (11), 3 states have call predecessors, (11), 3 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-11-28 05:12:55,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 233 states to 233 states and 262 transitions. [2024-11-28 05:12:55,376 INFO L78 Accepts]: Start accepts. Automaton has 233 states and 262 transitions. Word has length 126 [2024-11-28 05:12:55,377 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:12:55,377 INFO L471 AbstractCegarLoop]: Abstraction has 233 states and 262 transitions. [2024-11-28 05:12:55,377 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 28 states have (on average 3.607142857142857) internal successors, (101), 25 states have internal predecessors, (101), 5 states have call successors, (8), 2 states have call predecessors, (8), 7 states have return successors, (9), 6 states have call predecessors, (9), 5 states have call successors, (9) [2024-11-28 05:12:55,377 INFO L276 IsEmpty]: Start isEmpty. Operand 233 states and 262 transitions. [2024-11-28 05:12:55,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2024-11-28 05:12:55,378 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:12:55,378 INFO L218 NwaCegarLoop]: trace histogram [45, 6, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:12:55,391 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53a965d3-ced8-4afb-8764-90382fa17ae0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-11-28 05:12:55,579 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53a965d3-ced8-4afb-8764-90382fa17ae0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2024-11-28 05:12:55,579 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr9REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [l0_destroyErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, l0_destroyErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, l0_destroyErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 82 more)] === [2024-11-28 05:12:55,579 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:12:55,579 INFO L85 PathProgramCache]: Analyzing trace with hash 977060692, now seen corresponding path program 1 times [2024-11-28 05:12:55,580 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:12:55,580 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [923039088] [2024-11-28 05:12:55,580 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:12:55,580 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:12:55,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:13:00,560 INFO L134 CoverageAnalysis]: Checked inductivity of 1395 backedges. 659 proven. 483 refuted. 0 times theorem prover too weak. 253 trivial. 0 not checked. [2024-11-28 05:13:00,560 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:13:00,560 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [923039088] [2024-11-28 05:13:00,560 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [923039088] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 05:13:00,561 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [425172856] [2024-11-28 05:13:00,561 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:13:00,561 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:13:00,561 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53a965d3-ced8-4afb-8764-90382fa17ae0/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:13:00,562 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53a965d3-ced8-4afb-8764-90382fa17ae0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 05:13:00,564 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53a965d3-ced8-4afb-8764-90382fa17ae0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-11-28 05:13:01,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:13:01,602 INFO L256 TraceCheckSpWp]: Trace formula consists of 1266 conjuncts, 130 conjuncts are in the unsatisfiable core [2024-11-28 05:13:01,607 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 05:13:01,968 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 8 treesize of output 1 [2024-11-28 05:14:16,176 WARN L873 $PredicateComparison]: unable to prove that (exists ((|zalloc_or_die_#Ultimate.C_memset_#ptr#1.base| Int)) (and (= (store |c_old(#valid)| |zalloc_or_die_#Ultimate.C_memset_#ptr#1.base| 1) |c_#valid|) (= (store |c_old(#length)| |zalloc_or_die_#Ultimate.C_memset_#ptr#1.base| (select |c_#length| |zalloc_or_die_#Ultimate.C_memset_#ptr#1.base|)) |c_#length|) (= (select |c_old(#valid)| |zalloc_or_die_#Ultimate.C_memset_#ptr#1.base|) 0))) is different from true [2024-11-28 05:14:16,291 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 05:14:16,292 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 9 [2024-11-28 05:14:16,317 INFO L349 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2024-11-28 05:14:16,317 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2024-11-28 05:14:16,496 WARN L873 $PredicateComparison]: unable to prove that (exists ((|zalloc_or_die_#Ultimate.C_memset_#ptr#1.base| Int)) (and (= (store |c_old(#length)| |zalloc_or_die_#Ultimate.C_memset_#ptr#1.base| (select |c_#length| |zalloc_or_die_#Ultimate.C_memset_#ptr#1.base|)) |c_#length|) (= |c_#valid| (store |c_old(#valid)| |zalloc_or_die_#Ultimate.C_memset_#ptr#1.base| (select |c_#valid| |zalloc_or_die_#Ultimate.C_memset_#ptr#1.base|))) (= (select |c_old(#valid)| |zalloc_or_die_#Ultimate.C_memset_#ptr#1.base|) 0))) is different from true [2024-11-28 05:14:16,737 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 05:14:16,740 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 9 [2024-11-28 05:14:16,778 INFO L349 Elim1Store]: treesize reduction 40, result has 32.2 percent of original size [2024-11-28 05:14:16,779 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 24 treesize of output 28 [2024-11-28 05:14:16,823 WARN L873 $PredicateComparison]: unable to prove that (exists ((|zalloc_or_die_#Ultimate.C_memset_#ptr#1.base| Int)) (and (= (store |c_old(#length)| |zalloc_or_die_#Ultimate.C_memset_#ptr#1.base| (select |c_#length| |zalloc_or_die_#Ultimate.C_memset_#ptr#1.base|)) |c_#length|) (= (select |c_old(#valid)| |zalloc_or_die_#Ultimate.C_memset_#ptr#1.base|) 0))) is different from true [2024-11-28 05:14:16,902 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 05:14:16,903 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 9 [2024-11-28 05:14:16,927 INFO L349 Elim1Store]: treesize reduction 8, result has 52.9 percent of original size [2024-11-28 05:14:16,928 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 16 treesize of output 18 [2024-11-28 05:14:17,062 INFO L134 CoverageAnalysis]: Checked inductivity of 1395 backedges. 186 proven. 293 refuted. 0 times theorem prover too weak. 110 trivial. 806 not checked. [2024-11-28 05:14:17,062 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 05:14:17,438 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [425172856] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 05:14:17,438 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-28 05:14:17,438 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [33, 34] total 59 [2024-11-28 05:14:17,438 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [855176197] [2024-11-28 05:14:17,438 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-28 05:14:17,440 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 60 states [2024-11-28 05:14:17,441 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:14:17,442 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 60 interpolants. [2024-11-28 05:14:17,443 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=177, Invalid=3237, Unknown=20, NotChecked=348, Total=3782 [2024-11-28 05:14:17,444 INFO L87 Difference]: Start difference. First operand 233 states and 262 transitions. Second operand has 60 states, 58 states have (on average 2.3275862068965516) internal successors, (135), 56 states have internal predecessors, (135), 4 states have call successors, (8), 2 states have call predecessors, (8), 8 states have return successors, (9), 7 states have call predecessors, (9), 4 states have call successors, (9) [2024-11-28 05:14:21,535 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2024-11-28 05:14:28,776 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2024-11-28 05:14:32,791 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2024-11-28 05:14:38,036 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2024-11-28 05:14:43,311 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2024-11-28 05:14:47,349 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2024-11-28 05:14:51,522 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2024-11-28 05:14:56,557 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:14:56,557 INFO L93 Difference]: Finished difference Result 341 states and 394 transitions. [2024-11-28 05:14:56,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2024-11-28 05:14:56,558 INFO L78 Accepts]: Start accepts. Automaton has has 60 states, 58 states have (on average 2.3275862068965516) internal successors, (135), 56 states have internal predecessors, (135), 4 states have call successors, (8), 2 states have call predecessors, (8), 8 states have return successors, (9), 7 states have call predecessors, (9), 4 states have call successors, (9) Word has length 126 [2024-11-28 05:14:56,558 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:14:56,559 INFO L225 Difference]: With dead ends: 341 [2024-11-28 05:14:56,559 INFO L226 Difference]: Without dead ends: 341 [2024-11-28 05:14:56,561 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 195 GetRequests, 111 SyntacticMatches, 1 SemanticMatches, 83 ConstructedPredicates, 3 IntricatePredicates, 0 DeprecatedPredicates, 1307 ImplicationChecksByTransitivity, 81.1s TimeCoverageRelationStatistics Valid=468, Invalid=6166, Unknown=20, NotChecked=486, Total=7140 [2024-11-28 05:14:56,561 INFO L435 NwaCegarLoop]: 93 mSDtfsCounter, 331 mSDsluCounter, 1788 mSDsCounter, 0 mSdLazyCounter, 6660 mSolverCounterSat, 24 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 33.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 331 SdHoareTripleChecker+Valid, 1881 SdHoareTripleChecker+Invalid, 7739 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 6660 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 1048 IncrementalHoareTripleChecker+Unchecked, 33.9s IncrementalHoareTripleChecker+Time [2024-11-28 05:14:56,562 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [331 Valid, 1881 Invalid, 7739 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 6660 Invalid, 7 Unknown, 1048 Unchecked, 33.9s Time] [2024-11-28 05:14:56,562 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 341 states. [2024-11-28 05:14:56,569 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 341 to 230. [2024-11-28 05:14:56,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 230 states, 149 states have (on average 1.5906040268456376) internal successors, (237), 215 states have internal predecessors, (237), 11 states have call successors, (11), 3 states have call predecessors, (11), 3 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-11-28 05:14:56,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 230 states to 230 states and 259 transitions. [2024-11-28 05:14:56,571 INFO L78 Accepts]: Start accepts. Automaton has 230 states and 259 transitions. Word has length 126 [2024-11-28 05:14:56,571 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:14:56,571 INFO L471 AbstractCegarLoop]: Abstraction has 230 states and 259 transitions. [2024-11-28 05:14:56,572 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 60 states, 58 states have (on average 2.3275862068965516) internal successors, (135), 56 states have internal predecessors, (135), 4 states have call successors, (8), 2 states have call predecessors, (8), 8 states have return successors, (9), 7 states have call predecessors, (9), 4 states have call successors, (9) [2024-11-28 05:14:56,572 INFO L276 IsEmpty]: Start isEmpty. Operand 230 states and 259 transitions. [2024-11-28 05:14:56,573 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2024-11-28 05:14:56,573 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:14:56,573 INFO L218 NwaCegarLoop]: trace histogram [45, 6, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:14:56,597 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53a965d3-ced8-4afb-8764-90382fa17ae0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2024-11-28 05:14:56,773 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53a965d3-ced8-4afb-8764-90382fa17ae0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2024-11-28 05:14:56,774 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr14REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [l0_destroyErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, l0_destroyErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, l0_destroyErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 82 more)] === [2024-11-28 05:14:56,774 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:14:56,774 INFO L85 PathProgramCache]: Analyzing trace with hash -367058561, now seen corresponding path program 1 times [2024-11-28 05:14:56,774 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:14:56,774 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [72182375] [2024-11-28 05:14:56,774 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:14:56,775 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:14:56,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:14:58,940 INFO L134 CoverageAnalysis]: Checked inductivity of 1395 backedges. 592 proven. 337 refuted. 0 times theorem prover too weak. 466 trivial. 0 not checked. [2024-11-28 05:14:58,940 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:14:58,940 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [72182375] [2024-11-28 05:14:58,940 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [72182375] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 05:14:58,940 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [60393902] [2024-11-28 05:14:58,940 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:14:58,940 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:14:58,940 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53a965d3-ced8-4afb-8764-90382fa17ae0/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:14:58,942 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53a965d3-ced8-4afb-8764-90382fa17ae0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 05:14:58,943 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53a965d3-ced8-4afb-8764-90382fa17ae0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-11-28 05:14:59,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:14:59,551 INFO L256 TraceCheckSpWp]: Trace formula consists of 1311 conjuncts, 57 conjuncts are in the unsatisfiable core [2024-11-28 05:14:59,556 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 05:14:59,626 WARN L873 $PredicateComparison]: unable to prove that (exists ((|zalloc_or_die_#Ultimate.C_memset_#ptr#1.base| Int)) (and (= |c_#valid| (store |c_old(#valid)| |zalloc_or_die_#Ultimate.C_memset_#ptr#1.base| (select |c_#valid| |zalloc_or_die_#Ultimate.C_memset_#ptr#1.base|))) (= (select |c_old(#valid)| |zalloc_or_die_#Ultimate.C_memset_#ptr#1.base|) 0))) is different from true [2024-11-28 05:14:59,715 INFO L349 Elim1Store]: treesize reduction 20, result has 33.3 percent of original size [2024-11-28 05:14:59,715 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 19 treesize of output 16 [2024-11-28 05:14:59,833 INFO L349 Elim1Store]: treesize reduction 20, result has 33.3 percent of original size [2024-11-28 05:14:59,833 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 19 treesize of output 16 [2024-11-28 05:14:59,918 WARN L851 $PredicateComparison]: unable to prove that (or (exists ((|v_#valid_BEFORE_CALL_34| (Array Int Int))) (let ((.cse0 (@diff |v_#valid_BEFORE_CALL_34| |c_#valid|))) (and (= |c_#valid| (store |v_#valid_BEFORE_CALL_34| .cse0 (select |c_#valid| .cse0))) (= .cse0 |c_ULTIMATE.start_l4_insert_#t~ret6#1.base|) (= (select |v_#valid_BEFORE_CALL_34| |c_ULTIMATE.start_l2_insert_~list#1.base|) 1)))) (= (select |c_#valid| |c_ULTIMATE.start_l2_insert_~list#1.base|) 1)) is different from false [2024-11-28 05:14:59,921 WARN L873 $PredicateComparison]: unable to prove that (or (exists ((|v_#valid_BEFORE_CALL_34| (Array Int Int))) (let ((.cse0 (@diff |v_#valid_BEFORE_CALL_34| |c_#valid|))) (and (= |c_#valid| (store |v_#valid_BEFORE_CALL_34| .cse0 (select |c_#valid| .cse0))) (= .cse0 |c_ULTIMATE.start_l4_insert_#t~ret6#1.base|) (= (select |v_#valid_BEFORE_CALL_34| |c_ULTIMATE.start_l2_insert_~list#1.base|) 1)))) (= (select |c_#valid| |c_ULTIMATE.start_l2_insert_~list#1.base|) 1)) is different from true [2024-11-28 05:14:59,937 WARN L851 $PredicateComparison]: unable to prove that (or (exists ((|v_#valid_BEFORE_CALL_34| (Array Int Int))) (let ((.cse0 (@diff |v_#valid_BEFORE_CALL_34| |c_#valid|))) (and (= |c_#valid| (store |v_#valid_BEFORE_CALL_34| .cse0 (select |c_#valid| .cse0))) (= |c_ULTIMATE.start_l4_insert_~item~0#1.base| .cse0) (= (select |v_#valid_BEFORE_CALL_34| |c_ULTIMATE.start_l2_insert_~list#1.base|) 1)))) (= (select |c_#valid| |c_ULTIMATE.start_l2_insert_~list#1.base|) 1)) is different from false [2024-11-28 05:14:59,940 WARN L873 $PredicateComparison]: unable to prove that (or (exists ((|v_#valid_BEFORE_CALL_34| (Array Int Int))) (let ((.cse0 (@diff |v_#valid_BEFORE_CALL_34| |c_#valid|))) (and (= |c_#valid| (store |v_#valid_BEFORE_CALL_34| .cse0 (select |c_#valid| .cse0))) (= |c_ULTIMATE.start_l4_insert_~item~0#1.base| .cse0) (= (select |v_#valid_BEFORE_CALL_34| |c_ULTIMATE.start_l2_insert_~list#1.base|) 1)))) (= (select |c_#valid| |c_ULTIMATE.start_l2_insert_~list#1.base|) 1)) is different from true [2024-11-28 05:14:59,984 WARN L873 $PredicateComparison]: unable to prove that (exists ((|zalloc_or_die_#Ultimate.C_memset_#ptr#1.base| Int)) (= (store |c_old(#valid)| |zalloc_or_die_#Ultimate.C_memset_#ptr#1.base| 1) |c_#valid|)) is different from true [2024-11-28 05:15:00,043 INFO L349 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2024-11-28 05:15:00,043 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 12 treesize of output 14 [2024-11-28 05:15:00,051 WARN L851 $PredicateComparison]: unable to prove that (or (exists ((|v_old(#valid)_AFTER_CALL_64| (Array Int Int)) (|zalloc_or_die_#Ultimate.C_memset_#ptr#1.base| Int)) (and (exists ((|v_#valid_BEFORE_CALL_34| (Array Int Int))) (let ((.cse0 (@diff |v_#valid_BEFORE_CALL_34| |v_old(#valid)_AFTER_CALL_64|))) (and (= (store |v_#valid_BEFORE_CALL_34| .cse0 (select |v_old(#valid)_AFTER_CALL_64| .cse0)) |v_old(#valid)_AFTER_CALL_64|) (= |c_ULTIMATE.start_l4_insert_~item~0#1.base| .cse0) (= (select |v_#valid_BEFORE_CALL_34| |c_ULTIMATE.start_l2_insert_~list#1.base|) 1)))) (= |c_#valid| (store |v_old(#valid)_AFTER_CALL_64| |zalloc_or_die_#Ultimate.C_memset_#ptr#1.base| 1)))) (and (exists ((|zalloc_or_die_#Ultimate.C_memset_#ptr#1.base| Int)) (= (select |c_#valid| |zalloc_or_die_#Ultimate.C_memset_#ptr#1.base|) 1)) (= (select |c_#valid| |c_ULTIMATE.start_l2_insert_~list#1.base|) 1))) is different from false [2024-11-28 05:15:00,054 WARN L873 $PredicateComparison]: unable to prove that (or (exists ((|v_old(#valid)_AFTER_CALL_64| (Array Int Int)) (|zalloc_or_die_#Ultimate.C_memset_#ptr#1.base| Int)) (and (exists ((|v_#valid_BEFORE_CALL_34| (Array Int Int))) (let ((.cse0 (@diff |v_#valid_BEFORE_CALL_34| |v_old(#valid)_AFTER_CALL_64|))) (and (= (store |v_#valid_BEFORE_CALL_34| .cse0 (select |v_old(#valid)_AFTER_CALL_64| .cse0)) |v_old(#valid)_AFTER_CALL_64|) (= |c_ULTIMATE.start_l4_insert_~item~0#1.base| .cse0) (= (select |v_#valid_BEFORE_CALL_34| |c_ULTIMATE.start_l2_insert_~list#1.base|) 1)))) (= |c_#valid| (store |v_old(#valid)_AFTER_CALL_64| |zalloc_or_die_#Ultimate.C_memset_#ptr#1.base| 1)))) (and (exists ((|zalloc_or_die_#Ultimate.C_memset_#ptr#1.base| Int)) (= (select |c_#valid| |zalloc_or_die_#Ultimate.C_memset_#ptr#1.base|) 1)) (= (select |c_#valid| |c_ULTIMATE.start_l2_insert_~list#1.base|) 1))) is different from true [2024-11-28 05:15:00,100 WARN L851 $PredicateComparison]: unable to prove that (and (= (select |c_#valid| |c_ULTIMATE.start_l4_insert_~item~0#1.base|) 1) (or (exists ((|v_old(#valid)_AFTER_CALL_64| (Array Int Int)) (|zalloc_or_die_#Ultimate.C_memset_#ptr#1.base| Int)) (and (exists ((|v_#valid_BEFORE_CALL_34| (Array Int Int))) (let ((.cse0 (@diff |v_#valid_BEFORE_CALL_34| |v_old(#valid)_AFTER_CALL_64|))) (and (= (store |v_#valid_BEFORE_CALL_34| .cse0 (select |v_old(#valid)_AFTER_CALL_64| .cse0)) |v_old(#valid)_AFTER_CALL_64|) (= |c_ULTIMATE.start_l4_insert_~item~0#1.base| .cse0) (= (select |v_#valid_BEFORE_CALL_34| |c_ULTIMATE.start_l2_insert_~list#1.base|) 1)))) (= |c_#valid| (store |v_old(#valid)_AFTER_CALL_64| |zalloc_or_die_#Ultimate.C_memset_#ptr#1.base| 1)))) (and (exists ((|zalloc_or_die_#Ultimate.C_memset_#ptr#1.base| Int)) (= (select |c_#valid| |zalloc_or_die_#Ultimate.C_memset_#ptr#1.base|) 1)) (= (select |c_#valid| |c_ULTIMATE.start_l2_insert_~list#1.base|) 1)))) is different from false [2024-11-28 05:15:00,103 WARN L873 $PredicateComparison]: unable to prove that (and (= (select |c_#valid| |c_ULTIMATE.start_l4_insert_~item~0#1.base|) 1) (or (exists ((|v_old(#valid)_AFTER_CALL_64| (Array Int Int)) (|zalloc_or_die_#Ultimate.C_memset_#ptr#1.base| Int)) (and (exists ((|v_#valid_BEFORE_CALL_34| (Array Int Int))) (let ((.cse0 (@diff |v_#valid_BEFORE_CALL_34| |v_old(#valid)_AFTER_CALL_64|))) (and (= (store |v_#valid_BEFORE_CALL_34| .cse0 (select |v_old(#valid)_AFTER_CALL_64| .cse0)) |v_old(#valid)_AFTER_CALL_64|) (= |c_ULTIMATE.start_l4_insert_~item~0#1.base| .cse0) (= (select |v_#valid_BEFORE_CALL_34| |c_ULTIMATE.start_l2_insert_~list#1.base|) 1)))) (= |c_#valid| (store |v_old(#valid)_AFTER_CALL_64| |zalloc_or_die_#Ultimate.C_memset_#ptr#1.base| 1)))) (and (exists ((|zalloc_or_die_#Ultimate.C_memset_#ptr#1.base| Int)) (= (select |c_#valid| |zalloc_or_die_#Ultimate.C_memset_#ptr#1.base|) 1)) (= (select |c_#valid| |c_ULTIMATE.start_l2_insert_~list#1.base|) 1)))) is different from true [2024-11-28 05:15:00,229 WARN L851 $PredicateComparison]: unable to prove that (or (exists ((|v_old(#valid)_AFTER_CALL_64| (Array Int Int)) (|v_#valid_BEFORE_CALL_34| (Array Int Int)) (|zalloc_or_die_#Ultimate.C_memset_#ptr#1.base| Int)) (let ((.cse0 (@diff |v_#valid_BEFORE_CALL_34| |v_old(#valid)_AFTER_CALL_64|))) (and (= 1 (select |c_#valid| .cse0)) (= (store |v_#valid_BEFORE_CALL_34| .cse0 (select |v_old(#valid)_AFTER_CALL_64| .cse0)) |v_old(#valid)_AFTER_CALL_64|) (= (select |v_#valid_BEFORE_CALL_34| |c_ULTIMATE.start_l2_insert_~list#1.base|) 1) (= |c_#valid| (store |v_old(#valid)_AFTER_CALL_64| |zalloc_or_die_#Ultimate.C_memset_#ptr#1.base| 1))))) (and (exists ((|zalloc_or_die_#Ultimate.C_memset_#ptr#1.base| Int)) (= (select |c_#valid| |zalloc_or_die_#Ultimate.C_memset_#ptr#1.base|) 1)) (= (select |c_#valid| |c_ULTIMATE.start_l2_insert_~list#1.base|) 1) (exists ((v_ArrVal_5043 Int)) (= (select |c_#valid| v_ArrVal_5043) 1)))) is different from false [2024-11-28 05:15:00,232 WARN L873 $PredicateComparison]: unable to prove that (or (exists ((|v_old(#valid)_AFTER_CALL_64| (Array Int Int)) (|v_#valid_BEFORE_CALL_34| (Array Int Int)) (|zalloc_or_die_#Ultimate.C_memset_#ptr#1.base| Int)) (let ((.cse0 (@diff |v_#valid_BEFORE_CALL_34| |v_old(#valid)_AFTER_CALL_64|))) (and (= 1 (select |c_#valid| .cse0)) (= (store |v_#valid_BEFORE_CALL_34| .cse0 (select |v_old(#valid)_AFTER_CALL_64| .cse0)) |v_old(#valid)_AFTER_CALL_64|) (= (select |v_#valid_BEFORE_CALL_34| |c_ULTIMATE.start_l2_insert_~list#1.base|) 1) (= |c_#valid| (store |v_old(#valid)_AFTER_CALL_64| |zalloc_or_die_#Ultimate.C_memset_#ptr#1.base| 1))))) (and (exists ((|zalloc_or_die_#Ultimate.C_memset_#ptr#1.base| Int)) (= (select |c_#valid| |zalloc_or_die_#Ultimate.C_memset_#ptr#1.base|) 1)) (= (select |c_#valid| |c_ULTIMATE.start_l2_insert_~list#1.base|) 1) (exists ((v_ArrVal_5043 Int)) (= (select |c_#valid| v_ArrVal_5043) 1)))) is different from true [2024-11-28 05:15:00,408 INFO L134 CoverageAnalysis]: Checked inductivity of 1395 backedges. 421 proven. 90 refuted. 0 times theorem prover too weak. 290 trivial. 594 not checked. [2024-11-28 05:15:00,408 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 05:15:00,523 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [60393902] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 05:15:00,523 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-28 05:15:00,524 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 22] total 33 [2024-11-28 05:15:00,524 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2120009301] [2024-11-28 05:15:00,524 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-28 05:15:00,524 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2024-11-28 05:15:00,524 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:15:00,525 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2024-11-28 05:15:00,525 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=101, Invalid=727, Unknown=12, NotChecked=420, Total=1260 [2024-11-28 05:15:00,525 INFO L87 Difference]: Start difference. First operand 230 states and 259 transitions. Second operand has 34 states, 31 states have (on average 3.4193548387096775) internal successors, (106), 27 states have internal predecessors, (106), 6 states have call successors, (9), 2 states have call predecessors, (9), 6 states have return successors, (10), 9 states have call predecessors, (10), 6 states have call successors, (10) [2024-11-28 05:15:00,974 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse1 (= (select |c_#valid| |c_ULTIMATE.start_l2_insert_~list#1.base|) 1))) (and (= (select |c_#valid| |c_ULTIMATE.start_l1_insert_~item~3#1.base|) 1) (or (exists ((|v_#valid_BEFORE_CALL_34| (Array Int Int))) (let ((.cse0 (@diff |v_#valid_BEFORE_CALL_34| |c_#valid|))) (and (= |c_#valid| (store |v_#valid_BEFORE_CALL_34| .cse0 (select |c_#valid| .cse0))) (= .cse0 |c_ULTIMATE.start_l4_insert_#t~ret6#1.base|) (= (select |v_#valid_BEFORE_CALL_34| |c_ULTIMATE.start_l2_insert_~list#1.base|) 1)))) .cse1) .cse1)) is different from false [2024-11-28 05:15:00,976 WARN L873 $PredicateComparison]: unable to prove that (let ((.cse1 (= (select |c_#valid| |c_ULTIMATE.start_l2_insert_~list#1.base|) 1))) (and (= (select |c_#valid| |c_ULTIMATE.start_l1_insert_~item~3#1.base|) 1) (or (exists ((|v_#valid_BEFORE_CALL_34| (Array Int Int))) (let ((.cse0 (@diff |v_#valid_BEFORE_CALL_34| |c_#valid|))) (and (= |c_#valid| (store |v_#valid_BEFORE_CALL_34| .cse0 (select |c_#valid| .cse0))) (= .cse0 |c_ULTIMATE.start_l4_insert_#t~ret6#1.base|) (= (select |v_#valid_BEFORE_CALL_34| |c_ULTIMATE.start_l2_insert_~list#1.base|) 1)))) .cse1) .cse1)) is different from true [2024-11-28 05:15:00,979 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse0 (= (select |c_#valid| |c_ULTIMATE.start_l2_insert_~list#1.base|) 1))) (and (or (= |c_ULTIMATE.start_l4_insert_~item~0#1.base| |c_ULTIMATE.start_l2_insert_~list#1.base|) (= |c_ULTIMATE.start_l2_insert_~list#1.base| |c_ULTIMATE.start_l3_insert_~item~1#1.base|) .cse0 (= |c_ULTIMATE.start_l2_insert_~list#1.base| |c_ULTIMATE.start_l3_insert_~list#1.base|)) (or (exists ((|v_#valid_BEFORE_CALL_34| (Array Int Int))) (let ((.cse1 (@diff |v_#valid_BEFORE_CALL_34| |c_#valid|))) (and (= |c_#valid| (store |v_#valid_BEFORE_CALL_34| .cse1 (select |c_#valid| .cse1))) (= |c_ULTIMATE.start_l4_insert_~item~0#1.base| .cse1) (= (select |v_#valid_BEFORE_CALL_34| |c_ULTIMATE.start_l2_insert_~list#1.base|) 1)))) .cse0))) is different from false [2024-11-28 05:15:00,981 WARN L873 $PredicateComparison]: unable to prove that (let ((.cse0 (= (select |c_#valid| |c_ULTIMATE.start_l2_insert_~list#1.base|) 1))) (and (or (= |c_ULTIMATE.start_l4_insert_~item~0#1.base| |c_ULTIMATE.start_l2_insert_~list#1.base|) (= |c_ULTIMATE.start_l2_insert_~list#1.base| |c_ULTIMATE.start_l3_insert_~item~1#1.base|) .cse0 (= |c_ULTIMATE.start_l2_insert_~list#1.base| |c_ULTIMATE.start_l3_insert_~list#1.base|)) (or (exists ((|v_#valid_BEFORE_CALL_34| (Array Int Int))) (let ((.cse1 (@diff |v_#valid_BEFORE_CALL_34| |c_#valid|))) (and (= |c_#valid| (store |v_#valid_BEFORE_CALL_34| .cse1 (select |c_#valid| .cse1))) (= |c_ULTIMATE.start_l4_insert_~item~0#1.base| .cse1) (= (select |v_#valid_BEFORE_CALL_34| |c_ULTIMATE.start_l2_insert_~list#1.base|) 1)))) .cse0))) is different from true [2024-11-28 05:15:00,985 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse0 (= (select |c_#valid| |c_ULTIMATE.start_l2_insert_~list#1.base|) 1))) (and (or (= |c_ULTIMATE.start_l4_insert_~item~0#1.base| |c_ULTIMATE.start_l2_insert_~list#1.base|) (= |c_ULTIMATE.start_l2_insert_~list#1.base| |c_ULTIMATE.start_l3_insert_~item~1#1.base|) .cse0 (= |c_ULTIMATE.start_l2_insert_~list#1.base| |c_ULTIMATE.start_l3_insert_~list#1.base|)) (or (exists ((|v_old(#valid)_AFTER_CALL_64| (Array Int Int)) (|zalloc_or_die_#Ultimate.C_memset_#ptr#1.base| Int)) (and (exists ((|v_#valid_BEFORE_CALL_34| (Array Int Int))) (let ((.cse1 (@diff |v_#valid_BEFORE_CALL_34| |v_old(#valid)_AFTER_CALL_64|))) (and (= (store |v_#valid_BEFORE_CALL_34| .cse1 (select |v_old(#valid)_AFTER_CALL_64| .cse1)) |v_old(#valid)_AFTER_CALL_64|) (= |c_ULTIMATE.start_l4_insert_~item~0#1.base| .cse1) (= (select |v_#valid_BEFORE_CALL_34| |c_ULTIMATE.start_l2_insert_~list#1.base|) 1)))) (= |c_#valid| (store |v_old(#valid)_AFTER_CALL_64| |zalloc_or_die_#Ultimate.C_memset_#ptr#1.base| 1)))) (and (exists ((|zalloc_or_die_#Ultimate.C_memset_#ptr#1.base| Int)) (= (select |c_#valid| |zalloc_or_die_#Ultimate.C_memset_#ptr#1.base|) 1)) .cse0)))) is different from false [2024-11-28 05:15:00,987 WARN L873 $PredicateComparison]: unable to prove that (let ((.cse0 (= (select |c_#valid| |c_ULTIMATE.start_l2_insert_~list#1.base|) 1))) (and (or (= |c_ULTIMATE.start_l4_insert_~item~0#1.base| |c_ULTIMATE.start_l2_insert_~list#1.base|) (= |c_ULTIMATE.start_l2_insert_~list#1.base| |c_ULTIMATE.start_l3_insert_~item~1#1.base|) .cse0 (= |c_ULTIMATE.start_l2_insert_~list#1.base| |c_ULTIMATE.start_l3_insert_~list#1.base|)) (or (exists ((|v_old(#valid)_AFTER_CALL_64| (Array Int Int)) (|zalloc_or_die_#Ultimate.C_memset_#ptr#1.base| Int)) (and (exists ((|v_#valid_BEFORE_CALL_34| (Array Int Int))) (let ((.cse1 (@diff |v_#valid_BEFORE_CALL_34| |v_old(#valid)_AFTER_CALL_64|))) (and (= (store |v_#valid_BEFORE_CALL_34| .cse1 (select |v_old(#valid)_AFTER_CALL_64| .cse1)) |v_old(#valid)_AFTER_CALL_64|) (= |c_ULTIMATE.start_l4_insert_~item~0#1.base| .cse1) (= (select |v_#valid_BEFORE_CALL_34| |c_ULTIMATE.start_l2_insert_~list#1.base|) 1)))) (= |c_#valid| (store |v_old(#valid)_AFTER_CALL_64| |zalloc_or_die_#Ultimate.C_memset_#ptr#1.base| 1)))) (and (exists ((|zalloc_or_die_#Ultimate.C_memset_#ptr#1.base| Int)) (= (select |c_#valid| |zalloc_or_die_#Ultimate.C_memset_#ptr#1.base|) 1)) .cse0)))) is different from true [2024-11-28 05:15:00,991 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse0 (= (select |c_#valid| |c_ULTIMATE.start_l2_insert_~list#1.base|) 1))) (and (= (select |c_#valid| |c_ULTIMATE.start_l4_insert_~item~0#1.base|) 1) (or (= |c_ULTIMATE.start_l2_insert_~list#1.base| |c_ULTIMATE.start_l3_insert_~item~1#1.base|) .cse0 (= |c_ULTIMATE.start_l2_insert_~list#1.base| |c_ULTIMATE.start_l3_insert_~list#1.base|)) (or (exists ((|v_old(#valid)_AFTER_CALL_64| (Array Int Int)) (|zalloc_or_die_#Ultimate.C_memset_#ptr#1.base| Int)) (and (exists ((|v_#valid_BEFORE_CALL_34| (Array Int Int))) (let ((.cse1 (@diff |v_#valid_BEFORE_CALL_34| |v_old(#valid)_AFTER_CALL_64|))) (and (= (store |v_#valid_BEFORE_CALL_34| .cse1 (select |v_old(#valid)_AFTER_CALL_64| .cse1)) |v_old(#valid)_AFTER_CALL_64|) (= |c_ULTIMATE.start_l4_insert_~item~0#1.base| .cse1) (= (select |v_#valid_BEFORE_CALL_34| |c_ULTIMATE.start_l2_insert_~list#1.base|) 1)))) (= |c_#valid| (store |v_old(#valid)_AFTER_CALL_64| |zalloc_or_die_#Ultimate.C_memset_#ptr#1.base| 1)))) (and (exists ((|zalloc_or_die_#Ultimate.C_memset_#ptr#1.base| Int)) (= (select |c_#valid| |zalloc_or_die_#Ultimate.C_memset_#ptr#1.base|) 1)) .cse0)))) is different from false [2024-11-28 05:15:00,993 WARN L873 $PredicateComparison]: unable to prove that (let ((.cse0 (= (select |c_#valid| |c_ULTIMATE.start_l2_insert_~list#1.base|) 1))) (and (= (select |c_#valid| |c_ULTIMATE.start_l4_insert_~item~0#1.base|) 1) (or (= |c_ULTIMATE.start_l2_insert_~list#1.base| |c_ULTIMATE.start_l3_insert_~item~1#1.base|) .cse0 (= |c_ULTIMATE.start_l2_insert_~list#1.base| |c_ULTIMATE.start_l3_insert_~list#1.base|)) (or (exists ((|v_old(#valid)_AFTER_CALL_64| (Array Int Int)) (|zalloc_or_die_#Ultimate.C_memset_#ptr#1.base| Int)) (and (exists ((|v_#valid_BEFORE_CALL_34| (Array Int Int))) (let ((.cse1 (@diff |v_#valid_BEFORE_CALL_34| |v_old(#valid)_AFTER_CALL_64|))) (and (= (store |v_#valid_BEFORE_CALL_34| .cse1 (select |v_old(#valid)_AFTER_CALL_64| .cse1)) |v_old(#valid)_AFTER_CALL_64|) (= |c_ULTIMATE.start_l4_insert_~item~0#1.base| .cse1) (= (select |v_#valid_BEFORE_CALL_34| |c_ULTIMATE.start_l2_insert_~list#1.base|) 1)))) (= |c_#valid| (store |v_old(#valid)_AFTER_CALL_64| |zalloc_or_die_#Ultimate.C_memset_#ptr#1.base| 1)))) (and (exists ((|zalloc_or_die_#Ultimate.C_memset_#ptr#1.base| Int)) (= (select |c_#valid| |zalloc_or_die_#Ultimate.C_memset_#ptr#1.base|) 1)) .cse0)))) is different from true [2024-11-28 05:15:01,004 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse0 (= (select |c_#valid| |c_ULTIMATE.start_l2_insert_~list#1.base|) 1))) (and (or (= |c_ULTIMATE.start_l2_insert_~list#1.base| |c_ULTIMATE.start_l3_insert_~item~1#1.base|) .cse0 (= |c_ULTIMATE.start_l2_insert_~list#1.base| |c_ULTIMATE.start_l3_insert_~list#1.base|)) (or (exists ((|v_old(#valid)_AFTER_CALL_64| (Array Int Int)) (|v_#valid_BEFORE_CALL_34| (Array Int Int)) (|zalloc_or_die_#Ultimate.C_memset_#ptr#1.base| Int)) (let ((.cse1 (@diff |v_#valid_BEFORE_CALL_34| |v_old(#valid)_AFTER_CALL_64|))) (and (= 1 (select |c_#valid| .cse1)) (= (store |v_#valid_BEFORE_CALL_34| .cse1 (select |v_old(#valid)_AFTER_CALL_64| .cse1)) |v_old(#valid)_AFTER_CALL_64|) (= (select |v_#valid_BEFORE_CALL_34| |c_ULTIMATE.start_l2_insert_~list#1.base|) 1) (= |c_#valid| (store |v_old(#valid)_AFTER_CALL_64| |zalloc_or_die_#Ultimate.C_memset_#ptr#1.base| 1))))) (and (exists ((|zalloc_or_die_#Ultimate.C_memset_#ptr#1.base| Int)) (= (select |c_#valid| |zalloc_or_die_#Ultimate.C_memset_#ptr#1.base|) 1)) .cse0 (exists ((v_ArrVal_5043 Int)) (= (select |c_#valid| v_ArrVal_5043) 1)))))) is different from false [2024-11-28 05:15:01,006 WARN L873 $PredicateComparison]: unable to prove that (let ((.cse0 (= (select |c_#valid| |c_ULTIMATE.start_l2_insert_~list#1.base|) 1))) (and (or (= |c_ULTIMATE.start_l2_insert_~list#1.base| |c_ULTIMATE.start_l3_insert_~item~1#1.base|) .cse0 (= |c_ULTIMATE.start_l2_insert_~list#1.base| |c_ULTIMATE.start_l3_insert_~list#1.base|)) (or (exists ((|v_old(#valid)_AFTER_CALL_64| (Array Int Int)) (|v_#valid_BEFORE_CALL_34| (Array Int Int)) (|zalloc_or_die_#Ultimate.C_memset_#ptr#1.base| Int)) (let ((.cse1 (@diff |v_#valid_BEFORE_CALL_34| |v_old(#valid)_AFTER_CALL_64|))) (and (= 1 (select |c_#valid| .cse1)) (= (store |v_#valid_BEFORE_CALL_34| .cse1 (select |v_old(#valid)_AFTER_CALL_64| .cse1)) |v_old(#valid)_AFTER_CALL_64|) (= (select |v_#valid_BEFORE_CALL_34| |c_ULTIMATE.start_l2_insert_~list#1.base|) 1) (= |c_#valid| (store |v_old(#valid)_AFTER_CALL_64| |zalloc_or_die_#Ultimate.C_memset_#ptr#1.base| 1))))) (and (exists ((|zalloc_or_die_#Ultimate.C_memset_#ptr#1.base| Int)) (= (select |c_#valid| |zalloc_or_die_#Ultimate.C_memset_#ptr#1.base|) 1)) .cse0 (exists ((v_ArrVal_5043 Int)) (= (select |c_#valid| v_ArrVal_5043) 1)))))) is different from true [2024-11-28 05:15:01,011 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse1 (= (select |c_#valid| |c_ULTIMATE.start_l2_insert_~list#1.base|) 1))) (and (or (exists ((|v_old(#valid)_AFTER_CALL_64| (Array Int Int)) (|v_#valid_BEFORE_CALL_34| (Array Int Int)) (|zalloc_or_die_#Ultimate.C_memset_#ptr#1.base| Int)) (let ((.cse0 (@diff |v_#valid_BEFORE_CALL_34| |v_old(#valid)_AFTER_CALL_64|))) (and (= 1 (select |c_#valid| .cse0)) (= (store |v_#valid_BEFORE_CALL_34| .cse0 (select |v_old(#valid)_AFTER_CALL_64| .cse0)) |v_old(#valid)_AFTER_CALL_64|) (= (select |v_#valid_BEFORE_CALL_34| |c_ULTIMATE.start_l2_insert_~list#1.base|) 1) (= |c_#valid| (store |v_old(#valid)_AFTER_CALL_64| |zalloc_or_die_#Ultimate.C_memset_#ptr#1.base| 1))))) (and (exists ((|zalloc_or_die_#Ultimate.C_memset_#ptr#1.base| Int)) (= (select |c_#valid| |zalloc_or_die_#Ultimate.C_memset_#ptr#1.base|) 1)) .cse1 (exists ((v_ArrVal_5043 Int)) (= (select |c_#valid| v_ArrVal_5043) 1)))) (or (= |c_ULTIMATE.start_l2_insert_~list#1.base| |c_ULTIMATE.start_l3_insert_~item~1#1.base|) .cse1))) is different from false [2024-11-28 05:15:01,014 WARN L873 $PredicateComparison]: unable to prove that (let ((.cse1 (= (select |c_#valid| |c_ULTIMATE.start_l2_insert_~list#1.base|) 1))) (and (or (exists ((|v_old(#valid)_AFTER_CALL_64| (Array Int Int)) (|v_#valid_BEFORE_CALL_34| (Array Int Int)) (|zalloc_or_die_#Ultimate.C_memset_#ptr#1.base| Int)) (let ((.cse0 (@diff |v_#valid_BEFORE_CALL_34| |v_old(#valid)_AFTER_CALL_64|))) (and (= 1 (select |c_#valid| .cse0)) (= (store |v_#valid_BEFORE_CALL_34| .cse0 (select |v_old(#valid)_AFTER_CALL_64| .cse0)) |v_old(#valid)_AFTER_CALL_64|) (= (select |v_#valid_BEFORE_CALL_34| |c_ULTIMATE.start_l2_insert_~list#1.base|) 1) (= |c_#valid| (store |v_old(#valid)_AFTER_CALL_64| |zalloc_or_die_#Ultimate.C_memset_#ptr#1.base| 1))))) (and (exists ((|zalloc_or_die_#Ultimate.C_memset_#ptr#1.base| Int)) (= (select |c_#valid| |zalloc_or_die_#Ultimate.C_memset_#ptr#1.base|) 1)) .cse1 (exists ((v_ArrVal_5043 Int)) (= (select |c_#valid| v_ArrVal_5043) 1)))) (or (= |c_ULTIMATE.start_l2_insert_~list#1.base| |c_ULTIMATE.start_l3_insert_~item~1#1.base|) .cse1))) is different from true [2024-11-28 05:15:01,019 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse0 (= (select |c_#valid| |c_ULTIMATE.start_l2_insert_~list#1.base|) 1))) (and .cse0 (or (exists ((|v_old(#valid)_AFTER_CALL_64| (Array Int Int)) (|v_#valid_BEFORE_CALL_34| (Array Int Int)) (|zalloc_or_die_#Ultimate.C_memset_#ptr#1.base| Int)) (let ((.cse1 (@diff |v_#valid_BEFORE_CALL_34| |v_old(#valid)_AFTER_CALL_64|))) (and (= 1 (select |c_#valid| .cse1)) (= (store |v_#valid_BEFORE_CALL_34| .cse1 (select |v_old(#valid)_AFTER_CALL_64| .cse1)) |v_old(#valid)_AFTER_CALL_64|) (= (select |v_#valid_BEFORE_CALL_34| |c_ULTIMATE.start_l2_insert_~list#1.base|) 1) (= |c_#valid| (store |v_old(#valid)_AFTER_CALL_64| |zalloc_or_die_#Ultimate.C_memset_#ptr#1.base| 1))))) (and (exists ((|zalloc_or_die_#Ultimate.C_memset_#ptr#1.base| Int)) (= (select |c_#valid| |zalloc_or_die_#Ultimate.C_memset_#ptr#1.base|) 1)) .cse0 (exists ((v_ArrVal_5043 Int)) (= (select |c_#valid| v_ArrVal_5043) 1)))))) is different from false [2024-11-28 05:15:01,021 WARN L873 $PredicateComparison]: unable to prove that (let ((.cse0 (= (select |c_#valid| |c_ULTIMATE.start_l2_insert_~list#1.base|) 1))) (and .cse0 (or (exists ((|v_old(#valid)_AFTER_CALL_64| (Array Int Int)) (|v_#valid_BEFORE_CALL_34| (Array Int Int)) (|zalloc_or_die_#Ultimate.C_memset_#ptr#1.base| Int)) (let ((.cse1 (@diff |v_#valid_BEFORE_CALL_34| |v_old(#valid)_AFTER_CALL_64|))) (and (= 1 (select |c_#valid| .cse1)) (= (store |v_#valid_BEFORE_CALL_34| .cse1 (select |v_old(#valid)_AFTER_CALL_64| .cse1)) |v_old(#valid)_AFTER_CALL_64|) (= (select |v_#valid_BEFORE_CALL_34| |c_ULTIMATE.start_l2_insert_~list#1.base|) 1) (= |c_#valid| (store |v_old(#valid)_AFTER_CALL_64| |zalloc_or_die_#Ultimate.C_memset_#ptr#1.base| 1))))) (and (exists ((|zalloc_or_die_#Ultimate.C_memset_#ptr#1.base| Int)) (= (select |c_#valid| |zalloc_or_die_#Ultimate.C_memset_#ptr#1.base|) 1)) .cse0 (exists ((v_ArrVal_5043 Int)) (= (select |c_#valid| v_ArrVal_5043) 1)))))) is different from true [2024-11-28 05:15:02,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:15:02,292 INFO L93 Difference]: Finished difference Result 359 states and 415 transitions. [2024-11-28 05:15:02,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-28 05:15:02,293 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 31 states have (on average 3.4193548387096775) internal successors, (106), 27 states have internal predecessors, (106), 6 states have call successors, (9), 2 states have call predecessors, (9), 6 states have return successors, (10), 9 states have call predecessors, (10), 6 states have call successors, (10) Word has length 132 [2024-11-28 05:15:02,293 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:15:02,294 INFO L225 Difference]: With dead ends: 359 [2024-11-28 05:15:02,295 INFO L226 Difference]: Without dead ends: 359 [2024-11-28 05:15:02,295 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 200 GetRequests, 152 SyntacticMatches, 2 SemanticMatches, 46 ConstructedPredicates, 14 IntricatePredicates, 0 DeprecatedPredicates, 176 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=153, Invalid=999, Unknown=26, NotChecked=1078, Total=2256 [2024-11-28 05:15:02,296 INFO L435 NwaCegarLoop]: 192 mSDtfsCounter, 236 mSDsluCounter, 2815 mSDsCounter, 0 mSdLazyCounter, 1918 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 236 SdHoareTripleChecker+Valid, 3007 SdHoareTripleChecker+Invalid, 5203 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 1918 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 3246 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-28 05:15:02,296 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [236 Valid, 3007 Invalid, 5203 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 1918 Invalid, 0 Unknown, 3246 Unchecked, 1.4s Time] [2024-11-28 05:15:02,299 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 359 states. [2024-11-28 05:15:02,307 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 359 to 258. [2024-11-28 05:15:02,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 258 states, 173 states have (on average 1.5317919075144508) internal successors, (265), 239 states have internal predecessors, (265), 15 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-11-28 05:15:02,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 258 states to 258 states and 295 transitions. [2024-11-28 05:15:02,310 INFO L78 Accepts]: Start accepts. Automaton has 258 states and 295 transitions. Word has length 132 [2024-11-28 05:15:02,311 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:15:02,311 INFO L471 AbstractCegarLoop]: Abstraction has 258 states and 295 transitions. [2024-11-28 05:15:02,311 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 31 states have (on average 3.4193548387096775) internal successors, (106), 27 states have internal predecessors, (106), 6 states have call successors, (9), 2 states have call predecessors, (9), 6 states have return successors, (10), 9 states have call predecessors, (10), 6 states have call successors, (10) [2024-11-28 05:15:02,311 INFO L276 IsEmpty]: Start isEmpty. Operand 258 states and 295 transitions. [2024-11-28 05:15:02,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2024-11-28 05:15:02,315 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:15:02,315 INFO L218 NwaCegarLoop]: trace histogram [45, 6, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:15:02,327 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53a965d3-ced8-4afb-8764-90382fa17ae0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2024-11-28 05:15:02,515 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53a965d3-ced8-4afb-8764-90382fa17ae0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2024-11-28 05:15:02,515 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr15REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [l0_destroyErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, l0_destroyErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, l0_destroyErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 82 more)] === [2024-11-28 05:15:02,516 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:15:02,516 INFO L85 PathProgramCache]: Analyzing trace with hash -367058560, now seen corresponding path program 1 times [2024-11-28 05:15:02,516 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:15:02,516 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1390348407] [2024-11-28 05:15:02,516 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:15:02,516 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:15:02,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:15:07,560 INFO L134 CoverageAnalysis]: Checked inductivity of 1395 backedges. 421 proven. 724 refuted. 0 times theorem prover too weak. 250 trivial. 0 not checked. [2024-11-28 05:15:07,560 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:15:07,560 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1390348407] [2024-11-28 05:15:07,560 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1390348407] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 05:15:07,560 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1796583771] [2024-11-28 05:15:07,560 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:15:07,560 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:15:07,560 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53a965d3-ced8-4afb-8764-90382fa17ae0/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:15:07,564 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53a965d3-ced8-4afb-8764-90382fa17ae0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 05:15:07,568 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53a965d3-ced8-4afb-8764-90382fa17ae0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-11-28 05:15:09,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:15:09,803 INFO L256 TraceCheckSpWp]: Trace formula consists of 1311 conjuncts, 192 conjuncts are in the unsatisfiable core [2024-11-28 05:15:09,810 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 05:15:10,225 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 10 treesize of output 9 [2024-11-28 05:15:18,013 INFO L349 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2024-11-28 05:15:18,014 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 14 treesize of output 13 [2024-11-28 05:15:18,038 INFO L349 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2024-11-28 05:15:18,038 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2024-11-28 05:15:18,520 INFO L349 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2024-11-28 05:15:18,520 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 22 treesize of output 33 [2024-11-28 05:15:18,536 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 9 [2024-11-28 05:15:19,384 INFO L349 Elim1Store]: treesize reduction 12, result has 52.0 percent of original size [2024-11-28 05:15:19,385 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 21 treesize of output 25 [2024-11-28 05:15:19,390 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 9 [2024-11-28 05:15:19,674 WARN L873 $PredicateComparison]: unable to prove that (exists ((|v_zalloc_or_die_calloc_model_~nmemb#1_257| Int) (|v_zalloc_or_die_calloc_model_~size#1_257| Int) (|zalloc_or_die_#Ultimate.C_memset_#ptr#1.base| Int)) (let ((.cse0 (* |v_zalloc_or_die_calloc_model_~size#1_257| |v_zalloc_or_die_calloc_model_~nmemb#1_257|)) (.cse1 (select |c_#length| |zalloc_or_die_#Ultimate.C_memset_#ptr#1.base|))) (and (= |c_zalloc_or_die_#Ultimate.C_memset_#amount#1| .cse0) (= (store |c_old(#length)| |zalloc_or_die_#Ultimate.C_memset_#ptr#1.base| .cse1) |c_#length|) (<= (mod .cse0 4294967296) .cse1)))) is different from true [2024-11-28 05:16:11,787 INFO L349 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2024-11-28 05:16:11,787 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 14 treesize of output 13 [2024-11-28 05:16:25,320 INFO L134 CoverageAnalysis]: Checked inductivity of 1395 backedges. 105 proven. 1180 refuted. 0 times theorem prover too weak. 102 trivial. 8 not checked. [2024-11-28 05:16:25,320 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 05:17:01,899 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1796583771] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 05:17:01,899 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-28 05:17:01,900 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [35, 62] total 93 [2024-11-28 05:17:01,900 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [713313024] [2024-11-28 05:17:01,900 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-28 05:17:01,900 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 94 states [2024-11-28 05:17:01,900 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:17:01,901 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 94 interpolants. [2024-11-28 05:17:01,903 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=409, Invalid=8476, Unknown=49, NotChecked=186, Total=9120 [2024-11-28 05:17:01,904 INFO L87 Difference]: Start difference. First operand 258 states and 295 transitions. Second operand has 94 states, 88 states have (on average 1.8636363636363635) internal successors, (164), 86 states have internal predecessors, (164), 7 states have call successors, (10), 3 states have call predecessors, (10), 10 states have return successors, (11), 10 states have call predecessors, (11), 7 states have call successors, (11) [2024-11-28 05:17:06,767 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2024-11-28 05:17:16,496 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2024-11-28 05:17:23,433 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2024-11-28 05:17:32,733 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2024-11-28 05:17:38,253 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2024-11-28 05:17:47,590 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2024-11-28 05:18:16,309 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2024-11-28 05:18:21,960 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2024-11-28 05:18:28,797 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2024-11-28 05:18:32,894 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2024-11-28 05:18:37,012 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2024-11-28 05:18:42,564 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2024-11-28 05:18:46,647 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2024-11-28 05:18:51,254 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2024-11-28 05:18:57,829 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2024-11-28 05:19:02,003 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2024-11-28 05:19:06,137 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2024-11-28 05:19:10,699 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2024-11-28 05:19:22,640 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2024-11-28 05:20:08,892 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 45.77s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2024-11-28 05:20:12,352 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.46s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2024-11-28 05:20:16,831 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2024-11-28 05:20:21,263 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2024-11-28 05:20:26,282 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2024-11-28 05:20:30,902 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2024-11-28 05:20:35,380 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2024-11-28 05:20:39,922 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2024-11-28 05:20:45,277 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2024-11-28 05:20:50,970 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.19s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2024-11-28 05:20:56,544 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2024-11-28 05:21:02,315 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2024-11-28 05:21:08,313 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2024-11-28 05:21:14,338 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2024-11-28 05:21:19,646 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2024-11-28 05:21:24,062 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2024-11-28 05:21:29,007 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2024-11-28 05:21:33,381 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2024-11-28 05:21:38,280 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2024-11-28 05:21:42,788 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2024-11-28 05:21:49,022 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2024-11-28 05:21:54,313 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2024-11-28 05:21:58,686 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2024-11-28 05:22:03,571 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2024-11-28 05:22:07,985 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2024-11-28 05:22:13,857 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2024-11-28 05:22:18,278 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2024-11-28 05:22:22,698 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2024-11-28 05:22:27,231 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2024-11-28 05:22:32,255 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2024-11-28 05:22:39,001 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2024-11-28 05:22:44,041 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2024-11-28 05:22:49,118 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2024-11-28 05:22:53,564 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2024-11-28 05:22:55,932 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.78s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2024-11-28 05:23:00,377 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2024-11-28 05:23:05,838 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2024-11-28 05:23:10,387 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2024-11-28 05:23:15,880 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2024-11-28 05:23:20,284 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2024-11-28 05:23:27,676 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2024-11-28 05:23:32,289 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2024-11-28 05:23:36,737 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2024-11-28 05:23:40,785 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2024-11-28 05:23:45,004 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2024-11-28 05:23:49,051 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2024-11-28 05:23:53,708 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2024-11-28 05:23:59,091 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2024-11-28 05:24:03,547 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2024-11-28 05:24:08,616 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2024-11-28 05:24:13,072 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2024-11-28 05:24:17,745 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2024-11-28 05:24:21,927 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2024-11-28 05:24:26,111 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2024-11-28 05:24:31,667 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2024-11-28 05:24:36,178 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2024-11-28 05:24:40,613 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2024-11-28 05:24:45,185 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2024-11-28 05:24:50,494 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2024-11-28 05:24:56,444 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2024-11-28 05:25:00,957 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2024-11-28 05:25:05,010 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2024-11-28 05:25:09,298 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2024-11-28 05:25:13,355 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2024-11-28 05:25:17,587 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2024-11-28 05:25:22,160 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2024-11-28 05:25:26,623 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2024-11-28 05:25:31,495 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2024-11-28 05:25:36,378 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2024-11-28 05:25:40,832 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2024-11-28 05:25:45,958 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2024-11-28 05:25:50,020 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2024-11-28 05:25:54,198 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2024-11-28 05:25:58,396 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0]