./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test6-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5606332f-f19f-4a99-963e-66d796cb8bdb/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5606332f-f19f-4a99-963e-66d796cb8bdb/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_5606332f-f19f-4a99-963e-66d796cb8bdb/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5606332f-f19f-4a99-963e-66d796cb8bdb/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test6-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5606332f-f19f-4a99-963e-66d796cb8bdb/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5606332f-f19f-4a99-963e-66d796cb8bdb/bin/uautomizer-verify-aQ6SnzHsRB --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash bd635b7902366e8a0b08b14a90a1f3949f04bf734a3e09a83f5077ced842f5da --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-27 23:21:25,373 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-27 23:21:25,496 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5606332f-f19f-4a99-963e-66d796cb8bdb/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-27 23:21:25,502 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-27 23:21:25,504 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-27 23:21:25,551 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-27 23:21:25,552 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-27 23:21:25,552 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-27 23:21:25,553 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-27 23:21:25,554 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-27 23:21:25,555 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-27 23:21:25,555 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-27 23:21:25,555 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-27 23:21:25,556 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-27 23:21:25,556 INFO L153 SettingsManager]: * Use SBE=true [2024-11-27 23:21:25,556 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-27 23:21:25,556 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-27 23:21:25,557 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-27 23:21:25,558 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-27 23:21:25,558 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-27 23:21:25,558 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-27 23:21:25,558 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-27 23:21:25,558 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-27 23:21:25,558 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-27 23:21:25,558 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-27 23:21:25,559 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-27 23:21:25,559 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-27 23:21:25,559 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-27 23:21:25,559 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-27 23:21:25,559 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-27 23:21:25,559 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-27 23:21:25,560 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-27 23:21:25,560 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-27 23:21:25,560 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-27 23:21:25,560 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 23:21:25,560 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-27 23:21:25,560 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-27 23:21:25,560 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-27 23:21:25,560 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-27 23:21:25,560 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 23:21:25,560 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-27 23:21:25,561 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-27 23:21:25,561 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-27 23:21:25,561 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-27 23:21:25,561 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-27 23:21:25,561 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-27 23:21:25,561 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-27 23:21:25,561 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-27 23:21:25,561 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-27 23:21:25,561 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-27 23:21:25,561 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_5606332f-f19f-4a99-963e-66d796cb8bdb/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 ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bd635b7902366e8a0b08b14a90a1f3949f04bf734a3e09a83f5077ced842f5da [2024-11-27 23:21:25,976 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-27 23:21:25,994 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-27 23:21:25,997 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-27 23:21:26,000 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-27 23:21:26,001 INFO L274 PluginConnector]: CDTParser initialized [2024-11-27 23:21:26,002 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5606332f-f19f-4a99-963e-66d796cb8bdb/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test6-2.i [2024-11-27 23:21:29,136 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5606332f-f19f-4a99-963e-66d796cb8bdb/bin/uautomizer-verify-aQ6SnzHsRB/data/8185db3e9/a725c7b8568b4941b87539c31635732b/FLAG5804e561c [2024-11-27 23:21:29,608 INFO L384 CDTParser]: Found 1 translation units. [2024-11-27 23:21:29,609 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5606332f-f19f-4a99-963e-66d796cb8bdb/sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test6-2.i [2024-11-27 23:21:29,641 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5606332f-f19f-4a99-963e-66d796cb8bdb/bin/uautomizer-verify-aQ6SnzHsRB/data/8185db3e9/a725c7b8568b4941b87539c31635732b/FLAG5804e561c [2024-11-27 23:21:29,668 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5606332f-f19f-4a99-963e-66d796cb8bdb/bin/uautomizer-verify-aQ6SnzHsRB/data/8185db3e9/a725c7b8568b4941b87539c31635732b [2024-11-27 23:21:29,671 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-27 23:21:29,673 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-27 23:21:29,675 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-27 23:21:29,676 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-27 23:21:29,681 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-27 23:21:29,682 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 11:21:29" (1/1) ... [2024-11-27 23:21:29,684 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4204a03b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:21:29, skipping insertion in model container [2024-11-27 23:21:29,686 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 11:21:29" (1/1) ... [2024-11-27 23:21:29,756 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-27 23:21:30,805 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-27 23:21:30,835 INFO L200 MainTranslator]: Completed pre-run [2024-11-27 23:21:31,052 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-27 23:21:31,130 INFO L204 MainTranslator]: Completed translation [2024-11-27 23:21:31,131 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:21:31 WrapperNode [2024-11-27 23:21:31,131 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-27 23:21:31,132 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-27 23:21:31,132 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-27 23:21:31,132 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-27 23:21:31,139 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:21:31" (1/1) ... [2024-11-27 23:21:31,173 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:21:31" (1/1) ... [2024-11-27 23:21:31,265 INFO L138 Inliner]: procedures = 282, calls = 353, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 1617 [2024-11-27 23:21:31,266 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-27 23:21:31,266 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-27 23:21:31,267 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-27 23:21:31,267 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-27 23:21:31,289 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:21:31" (1/1) ... [2024-11-27 23:21:31,289 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:21:31" (1/1) ... [2024-11-27 23:21:31,336 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:21:31" (1/1) ... [2024-11-27 23:21:31,507 INFO L175 MemorySlicer]: Split 318 memory accesses to 4 slices as follows [2, 12, 34, 270]. 85 percent of accesses are in the largest equivalence class. The 12 initializations are split as follows [2, 10, 0, 0]. The 62 writes are split as follows [0, 1, 4, 57]. [2024-11-27 23:21:31,511 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:21:31" (1/1) ... [2024-11-27 23:21:31,511 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:21:31" (1/1) ... [2024-11-27 23:21:31,555 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:21:31" (1/1) ... [2024-11-27 23:21:31,558 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:21:31" (1/1) ... [2024-11-27 23:21:31,572 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:21:31" (1/1) ... [2024-11-27 23:21:31,577 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:21:31" (1/1) ... [2024-11-27 23:21:31,583 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:21:31" (1/1) ... [2024-11-27 23:21:31,595 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-27 23:21:31,596 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-27 23:21:31,596 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-27 23:21:31,597 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-27 23:21:31,598 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:21:31" (1/1) ... [2024-11-27 23:21:31,604 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 23:21:31,624 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5606332f-f19f-4a99-963e-66d796cb8bdb/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:21:31,650 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5606332f-f19f-4a99-963e-66d796cb8bdb/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-27 23:21:31,655 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5606332f-f19f-4a99-963e-66d796cb8bdb/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-27 23:21:31,692 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2024-11-27 23:21:31,693 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2024-11-27 23:21:31,693 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-27 23:21:31,693 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-27 23:21:31,693 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-27 23:21:31,693 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-27 23:21:31,693 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-11-27 23:21:31,694 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-27 23:21:31,694 INFO L130 BoogieDeclarations]: Found specification of procedure alt_bzero [2024-11-27 23:21:31,694 INFO L138 BoogieDeclarations]: Found implementation of procedure alt_bzero [2024-11-27 23:21:31,694 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-27 23:21:31,694 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-27 23:21:31,694 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-27 23:21:31,695 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-27 23:21:31,695 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-27 23:21:31,695 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-27 23:21:31,696 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-27 23:21:31,696 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-27 23:21:31,696 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-27 23:21:31,696 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-27 23:21:31,697 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-27 23:21:31,697 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-27 23:21:31,697 INFO L130 BoogieDeclarations]: Found specification of procedure alt_malloc [2024-11-27 23:21:31,697 INFO L138 BoogieDeclarations]: Found implementation of procedure alt_malloc [2024-11-27 23:21:31,697 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-27 23:21:31,697 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-27 23:21:31,700 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-27 23:21:31,701 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-11-27 23:21:31,701 INFO L130 BoogieDeclarations]: Found specification of procedure alt_free [2024-11-27 23:21:31,701 INFO L138 BoogieDeclarations]: Found implementation of procedure alt_free [2024-11-27 23:21:31,701 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-27 23:21:31,701 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-27 23:21:31,701 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-27 23:21:31,701 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-27 23:21:31,701 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-27 23:21:31,701 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-27 23:21:32,061 INFO L234 CfgBuilder]: Building ICFG [2024-11-27 23:21:32,064 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-27 23:21:34,537 INFO L? ?]: Removed 375 outVars from TransFormulas that were not future-live. [2024-11-27 23:21:34,538 INFO L283 CfgBuilder]: Performing block encoding [2024-11-27 23:21:34,570 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-27 23:21:34,573 INFO L312 CfgBuilder]: Removed 41 assume(true) statements. [2024-11-27 23:21:34,574 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 11:21:34 BoogieIcfgContainer [2024-11-27 23:21:34,574 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-27 23:21:34,576 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-27 23:21:34,577 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-27 23:21:34,584 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-27 23:21:34,584 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.11 11:21:29" (1/3) ... [2024-11-27 23:21:34,585 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@66d01cf4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 11:21:34, skipping insertion in model container [2024-11-27 23:21:34,585 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:21:31" (2/3) ... [2024-11-27 23:21:34,585 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@66d01cf4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 11:21:34, skipping insertion in model container [2024-11-27 23:21:34,587 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 11:21:34" (3/3) ... [2024-11-27 23:21:34,588 INFO L128 eAbstractionObserver]: Analyzing ICFG uthash_OAT_test6-2.i [2024-11-27 23:21:34,606 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-27 23:21:34,608 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG uthash_OAT_test6-2.i that has 6 procedures, 506 locations, 1 initial locations, 41 loop locations, and 14 error locations. [2024-11-27 23:21:34,706 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-27 23:21:34,720 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@351e4d2b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-27 23:21:34,720 INFO L334 AbstractCegarLoop]: Starting to check reachability of 14 error locations. [2024-11-27 23:21:34,725 INFO L276 IsEmpty]: Start isEmpty. Operand has 506 states, 467 states have (on average 1.5995717344753748) internal successors, (747), 484 states have internal predecessors, (747), 20 states have call successors, (20), 5 states have call predecessors, (20), 5 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-27 23:21:34,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-11-27 23:21:34,732 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:21:34,733 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:21:34,733 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-27 23:21:34,739 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:21:34,740 INFO L85 PathProgramCache]: Analyzing trace with hash -885637860, now seen corresponding path program 1 times [2024-11-27 23:21:34,748 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:21:34,749 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1229858535] [2024-11-27 23:21:34,749 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:21:34,749 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:21:34,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:21:34,942 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 23:21:34,943 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:21:34,943 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1229858535] [2024-11-27 23:21:34,944 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1229858535] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:21:34,944 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:21:34,944 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-27 23:21:34,946 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [119507830] [2024-11-27 23:21:34,946 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:21:34,950 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-27 23:21:34,950 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:21:34,968 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-27 23:21:34,969 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-27 23:21:34,972 INFO L87 Difference]: Start difference. First operand has 506 states, 467 states have (on average 1.5995717344753748) internal successors, (747), 484 states have internal predecessors, (747), 20 states have call successors, (20), 5 states have call predecessors, (20), 5 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) Second operand has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 23:21:35,078 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:21:35,079 INFO L93 Difference]: Finished difference Result 1005 states and 1579 transitions. [2024-11-27 23:21:35,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-27 23:21:35,081 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2024-11-27 23:21:35,081 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:21:35,091 INFO L225 Difference]: With dead ends: 1005 [2024-11-27 23:21:35,091 INFO L226 Difference]: Without dead ends: 492 [2024-11-27 23:21:35,096 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 [2024-11-27 23:21:35,099 INFO L435 NwaCegarLoop]: 700 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, 700 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 [2024-11-27 23:21:35,100 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 700 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-27 23:21:35,117 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 492 states. [2024-11-27 23:21:35,184 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 492 to 492. [2024-11-27 23:21:35,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 492 states, 459 states have (on average 1.4335511982570806) internal successors, (658), 473 states have internal predecessors, (658), 15 states have call successors, (15), 4 states have call predecessors, (15), 4 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-11-27 23:21:35,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 492 states to 492 states and 688 transitions. [2024-11-27 23:21:35,200 INFO L78 Accepts]: Start accepts. Automaton has 492 states and 688 transitions. Word has length 9 [2024-11-27 23:21:35,200 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:21:35,201 INFO L471 AbstractCegarLoop]: Abstraction has 492 states and 688 transitions. [2024-11-27 23:21:35,201 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 23:21:35,201 INFO L276 IsEmpty]: Start isEmpty. Operand 492 states and 688 transitions. [2024-11-27 23:21:35,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-11-27 23:21:35,202 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:21:35,202 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:21:35,202 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-27 23:21:35,202 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-27 23:21:35,203 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:21:35,203 INFO L85 PathProgramCache]: Analyzing trace with hash -885635938, now seen corresponding path program 1 times [2024-11-27 23:21:35,204 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:21:35,204 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [669855224] [2024-11-27 23:21:35,204 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:21:35,204 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:21:35,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-27 23:21:35,285 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1451415731] [2024-11-27 23:21:35,288 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:21:35,289 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:21:35,289 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5606332f-f19f-4a99-963e-66d796cb8bdb/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:21:35,293 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5606332f-f19f-4a99-963e-66d796cb8bdb/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:21:35,298 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5606332f-f19f-4a99-963e-66d796cb8bdb/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-27 23:21:35,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:21:35,564 INFO L256 TraceCheckSpWp]: Trace formula consists of 120 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-27 23:21:35,577 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:21:35,619 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-11-27 23:21:35,672 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 23:21:35,673 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 23:21:35,673 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:21:35,673 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [669855224] [2024-11-27 23:21:35,674 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-27 23:21:35,674 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1451415731] [2024-11-27 23:21:35,674 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1451415731] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:21:35,674 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:21:35,674 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 23:21:35,675 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1386094806] [2024-11-27 23:21:35,675 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:21:35,676 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-27 23:21:35,676 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:21:35,676 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-27 23:21:35,677 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-27 23:21:35,677 INFO L87 Difference]: Start difference. First operand 492 states and 688 transitions. Second operand has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 23:21:35,950 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:21:35,951 INFO L93 Difference]: Finished difference Result 950 states and 1343 transitions. [2024-11-27 23:21:35,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 23:21:35,952 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2024-11-27 23:21:35,952 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:21:35,960 INFO L225 Difference]: With dead ends: 950 [2024-11-27 23:21:35,960 INFO L226 Difference]: Without dead ends: 948 [2024-11-27 23:21:35,961 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-27 23:21:35,962 INFO L435 NwaCegarLoop]: 673 mSDtfsCounter, 618 mSDsluCounter, 1321 mSDsCounter, 0 mSdLazyCounter, 86 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 632 SdHoareTripleChecker+Valid, 1994 SdHoareTripleChecker+Invalid, 89 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 86 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-27 23:21:35,965 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [632 Valid, 1994 Invalid, 89 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 86 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-27 23:21:35,970 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 948 states. [2024-11-27 23:21:36,010 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 948 to 500. [2024-11-27 23:21:36,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 500 states, 467 states have (on average 1.4282655246252676) internal successors, (667), 481 states have internal predecessors, (667), 15 states have call successors, (15), 4 states have call predecessors, (15), 4 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-11-27 23:21:36,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 500 states to 500 states and 697 transitions. [2024-11-27 23:21:36,016 INFO L78 Accepts]: Start accepts. Automaton has 500 states and 697 transitions. Word has length 9 [2024-11-27 23:21:36,016 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:21:36,016 INFO L471 AbstractCegarLoop]: Abstraction has 500 states and 697 transitions. [2024-11-27 23:21:36,016 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 23:21:36,016 INFO L276 IsEmpty]: Start isEmpty. Operand 500 states and 697 transitions. [2024-11-27 23:21:36,018 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2024-11-27 23:21:36,018 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:21:36,018 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:21:36,029 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5606332f-f19f-4a99-963e-66d796cb8bdb/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-27 23:21:36,219 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5606332f-f19f-4a99-963e-66d796cb8bdb/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:21:36,219 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-27 23:21:36,220 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:21:36,220 INFO L85 PathProgramCache]: Analyzing trace with hash 1905410566, now seen corresponding path program 1 times [2024-11-27 23:21:36,220 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:21:36,220 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [78965152] [2024-11-27 23:21:36,220 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:21:36,220 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:21:36,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:21:36,685 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-27 23:21:36,686 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:21:36,686 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [78965152] [2024-11-27 23:21:36,686 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [78965152] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:21:36,686 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:21:36,686 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-27 23:21:36,686 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [806494809] [2024-11-27 23:21:36,686 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:21:36,687 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-27 23:21:36,687 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:21:36,688 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-27 23:21:36,688 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-27 23:21:36,688 INFO L87 Difference]: Start difference. First operand 500 states and 697 transitions. Second operand has 4 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-27 23:21:36,940 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:21:36,940 INFO L93 Difference]: Finished difference Result 1203 states and 1699 transitions. [2024-11-27 23:21:36,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 23:21:36,941 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 34 [2024-11-27 23:21:36,941 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:21:36,948 INFO L225 Difference]: With dead ends: 1203 [2024-11-27 23:21:36,951 INFO L226 Difference]: Without dead ends: 947 [2024-11-27 23:21:36,952 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-27 23:21:36,954 INFO L435 NwaCegarLoop]: 709 mSDtfsCounter, 621 mSDsluCounter, 1360 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 635 SdHoareTripleChecker+Valid, 2069 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-27 23:21:36,955 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [635 Valid, 2069 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-27 23:21:36,958 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 947 states. [2024-11-27 23:21:36,987 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 947 to 500. [2024-11-27 23:21:36,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 500 states, 467 states have (on average 1.4261241970021414) internal successors, (666), 481 states have internal predecessors, (666), 15 states have call successors, (15), 4 states have call predecessors, (15), 4 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-11-27 23:21:36,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 500 states to 500 states and 696 transitions. [2024-11-27 23:21:36,996 INFO L78 Accepts]: Start accepts. Automaton has 500 states and 696 transitions. Word has length 34 [2024-11-27 23:21:36,997 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:21:36,997 INFO L471 AbstractCegarLoop]: Abstraction has 500 states and 696 transitions. [2024-11-27 23:21:36,997 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-27 23:21:36,997 INFO L276 IsEmpty]: Start isEmpty. Operand 500 states and 696 transitions. [2024-11-27 23:21:36,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-27 23:21:36,999 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:21:36,999 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:21:36,999 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-27 23:21:37,000 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-27 23:21:37,000 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:21:37,000 INFO L85 PathProgramCache]: Analyzing trace with hash 970421699, now seen corresponding path program 1 times [2024-11-27 23:21:37,000 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:21:37,000 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1654059420] [2024-11-27 23:21:37,001 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:21:37,001 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:21:37,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:21:37,347 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 23:21:37,348 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:21:37,348 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1654059420] [2024-11-27 23:21:37,348 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1654059420] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:21:37,348 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:21:37,348 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 23:21:37,348 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [322885229] [2024-11-27 23:21:37,348 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:21:37,349 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 23:21:37,349 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:21:37,350 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 23:21:37,350 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 23:21:37,350 INFO L87 Difference]: Start difference. First operand 500 states and 696 transitions. Second operand has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 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) [2024-11-27 23:21:37,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:21:37,494 INFO L93 Difference]: Finished difference Result 1010 states and 1412 transitions. [2024-11-27 23:21:37,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 23:21:37,495 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 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 65 [2024-11-27 23:21:37,495 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:21:37,500 INFO L225 Difference]: With dead ends: 1010 [2024-11-27 23:21:37,500 INFO L226 Difference]: Without dead ends: 520 [2024-11-27 23:21:37,502 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 23:21:37,503 INFO L435 NwaCegarLoop]: 668 mSDtfsCounter, 9 mSDsluCounter, 653 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 1321 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-27 23:21:37,507 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 1321 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-27 23:21:37,508 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 520 states. [2024-11-27 23:21:37,530 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 520 to 520. [2024-11-27 23:21:37,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 520 states, 487 states have (on average 1.408624229979466) internal successors, (686), 501 states have internal predecessors, (686), 15 states have call successors, (15), 4 states have call predecessors, (15), 4 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-11-27 23:21:37,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 520 states to 520 states and 716 transitions. [2024-11-27 23:21:37,537 INFO L78 Accepts]: Start accepts. Automaton has 520 states and 716 transitions. Word has length 65 [2024-11-27 23:21:37,537 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:21:37,538 INFO L471 AbstractCegarLoop]: Abstraction has 520 states and 716 transitions. [2024-11-27 23:21:37,538 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 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) [2024-11-27 23:21:37,538 INFO L276 IsEmpty]: Start isEmpty. Operand 520 states and 716 transitions. [2024-11-27 23:21:37,540 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-27 23:21:37,540 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:21:37,541 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:21:37,544 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-27 23:21:37,544 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-27 23:21:37,545 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:21:37,545 INFO L85 PathProgramCache]: Analyzing trace with hash 1275242951, now seen corresponding path program 1 times [2024-11-27 23:21:37,545 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:21:37,545 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [875782559] [2024-11-27 23:21:37,545 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:21:37,545 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:21:37,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:21:37,788 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 23:21:37,789 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:21:37,790 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [875782559] [2024-11-27 23:21:37,790 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [875782559] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:21:37,790 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:21:37,790 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-27 23:21:37,791 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1113785121] [2024-11-27 23:21:37,791 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:21:37,791 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-27 23:21:37,794 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:21:37,795 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-27 23:21:37,795 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-27 23:21:37,795 INFO L87 Difference]: Start difference. First operand 520 states and 716 transitions. Second operand has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 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) [2024-11-27 23:21:37,946 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:21:37,947 INFO L93 Difference]: Finished difference Result 1016 states and 1408 transitions. [2024-11-27 23:21:37,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 23:21:37,948 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 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 65 [2024-11-27 23:21:37,949 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:21:37,956 INFO L225 Difference]: With dead ends: 1016 [2024-11-27 23:21:37,956 INFO L226 Difference]: Without dead ends: 506 [2024-11-27 23:21:37,958 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-27 23:21:37,958 INFO L435 NwaCegarLoop]: 660 mSDtfsCounter, 106 mSDsluCounter, 1226 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 106 SdHoareTripleChecker+Valid, 1886 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-27 23:21:37,959 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [106 Valid, 1886 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-27 23:21:37,963 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 506 states. [2024-11-27 23:21:37,987 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 506 to 506. [2024-11-27 23:21:37,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 506 states, 473 states have (on average 1.4059196617336152) internal successors, (665), 487 states have internal predecessors, (665), 15 states have call successors, (15), 4 states have call predecessors, (15), 4 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-11-27 23:21:37,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 506 states to 506 states and 695 transitions. [2024-11-27 23:21:37,995 INFO L78 Accepts]: Start accepts. Automaton has 506 states and 695 transitions. Word has length 65 [2024-11-27 23:21:37,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:21:37,996 INFO L471 AbstractCegarLoop]: Abstraction has 506 states and 695 transitions. [2024-11-27 23:21:37,996 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 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) [2024-11-27 23:21:37,996 INFO L276 IsEmpty]: Start isEmpty. Operand 506 states and 695 transitions. [2024-11-27 23:21:37,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-27 23:21:38,001 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:21:38,001 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:21:38,002 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-27 23:21:38,002 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-27 23:21:38,002 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:21:38,002 INFO L85 PathProgramCache]: Analyzing trace with hash 459189497, now seen corresponding path program 1 times [2024-11-27 23:21:38,002 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:21:38,002 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1271978092] [2024-11-27 23:21:38,003 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:21:38,003 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:21:38,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:21:38,344 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 23:21:38,345 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:21:38,345 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1271978092] [2024-11-27 23:21:38,345 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1271978092] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:21:38,345 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:21:38,345 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-27 23:21:38,345 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2108911015] [2024-11-27 23:21:38,345 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:21:38,346 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-27 23:21:38,346 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:21:38,346 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-27 23:21:38,347 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-27 23:21:38,347 INFO L87 Difference]: Start difference. First operand 506 states and 695 transitions. Second operand has 4 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 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) [2024-11-27 23:21:38,451 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:21:38,452 INFO L93 Difference]: Finished difference Result 930 states and 1289 transitions. [2024-11-27 23:21:38,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 23:21:38,452 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 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 65 [2024-11-27 23:21:38,453 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:21:38,461 INFO L225 Difference]: With dead ends: 930 [2024-11-27 23:21:38,462 INFO L226 Difference]: Without dead ends: 926 [2024-11-27 23:21:38,463 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-27 23:21:38,464 INFO L435 NwaCegarLoop]: 678 mSDtfsCounter, 518 mSDsluCounter, 1345 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 518 SdHoareTripleChecker+Valid, 2023 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-27 23:21:38,465 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [518 Valid, 2023 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-27 23:21:38,468 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 926 states. [2024-11-27 23:21:38,544 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 926 to 918. [2024-11-27 23:21:38,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 918 states, 877 states have (on average 1.4150513112884835) internal successors, (1241), 893 states have internal predecessors, (1241), 22 states have call successors, (22), 7 states have call predecessors, (22), 5 states have return successors, (22), 18 states have call predecessors, (22), 22 states have call successors, (22) [2024-11-27 23:21:38,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 918 states to 918 states and 1285 transitions. [2024-11-27 23:21:38,555 INFO L78 Accepts]: Start accepts. Automaton has 918 states and 1285 transitions. Word has length 65 [2024-11-27 23:21:38,555 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:21:38,555 INFO L471 AbstractCegarLoop]: Abstraction has 918 states and 1285 transitions. [2024-11-27 23:21:38,555 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 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) [2024-11-27 23:21:38,555 INFO L276 IsEmpty]: Start isEmpty. Operand 918 states and 1285 transitions. [2024-11-27 23:21:38,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2024-11-27 23:21:38,557 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:21:38,557 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:21:38,558 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-27 23:21:38,558 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting alt_bzeroErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-27 23:21:38,558 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:21:38,559 INFO L85 PathProgramCache]: Analyzing trace with hash 1201589310, now seen corresponding path program 1 times [2024-11-27 23:21:38,559 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:21:38,559 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1904807350] [2024-11-27 23:21:38,559 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:21:38,560 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:21:38,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:21:38,919 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 23:21:38,921 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:21:38,921 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1904807350] [2024-11-27 23:21:38,922 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1904807350] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:21:38,922 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:21:38,922 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-27 23:21:38,922 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1954825093] [2024-11-27 23:21:38,922 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:21:38,923 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 23:21:38,923 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:21:38,923 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 23:21:38,923 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 23:21:38,924 INFO L87 Difference]: Start difference. First operand 918 states and 1285 transitions. Second operand has 3 states, 2 states have (on average 36.0) internal successors, (72), 3 states have internal predecessors, (72), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-27 23:21:38,985 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:21:38,989 INFO L93 Difference]: Finished difference Result 1193 states and 1662 transitions. [2024-11-27 23:21:38,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 23:21:38,991 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 36.0) internal successors, (72), 3 states have internal predecessors, (72), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 75 [2024-11-27 23:21:38,992 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:21:39,000 INFO L225 Difference]: With dead ends: 1193 [2024-11-27 23:21:39,001 INFO L226 Difference]: Without dead ends: 1191 [2024-11-27 23:21:39,002 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 23:21:39,004 INFO L435 NwaCegarLoop]: 678 mSDtfsCounter, 546 mSDsluCounter, 674 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 546 SdHoareTripleChecker+Valid, 1352 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-27 23:21:39,005 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [546 Valid, 1352 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-27 23:21:39,009 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1191 states. [2024-11-27 23:21:39,056 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1191 to 1181. [2024-11-27 23:21:39,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1181 states, 1127 states have (on average 1.4161490683229814) internal successors, (1596), 1144 states have internal predecessors, (1596), 32 states have call successors, (32), 10 states have call predecessors, (32), 8 states have return successors, (32), 28 states have call predecessors, (32), 32 states have call successors, (32) [2024-11-27 23:21:39,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1181 states to 1181 states and 1660 transitions. [2024-11-27 23:21:39,069 INFO L78 Accepts]: Start accepts. Automaton has 1181 states and 1660 transitions. Word has length 75 [2024-11-27 23:21:39,070 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:21:39,070 INFO L471 AbstractCegarLoop]: Abstraction has 1181 states and 1660 transitions. [2024-11-27 23:21:39,070 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 36.0) internal successors, (72), 3 states have internal predecessors, (72), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-27 23:21:39,070 INFO L276 IsEmpty]: Start isEmpty. Operand 1181 states and 1660 transitions. [2024-11-27 23:21:39,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-11-27 23:21:39,072 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:21:39,072 INFO L218 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:21:39,072 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-27 23:21:39,073 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-27 23:21:39,074 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:21:39,074 INFO L85 PathProgramCache]: Analyzing trace with hash 1395410819, now seen corresponding path program 1 times [2024-11-27 23:21:39,074 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:21:39,074 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [497984929] [2024-11-27 23:21:39,074 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:21:39,074 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:21:39,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:21:39,762 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 23:21:39,763 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:21:39,763 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [497984929] [2024-11-27 23:21:39,763 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [497984929] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:21:39,763 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1718755662] [2024-11-27 23:21:39,764 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:21:39,764 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:21:39,764 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5606332f-f19f-4a99-963e-66d796cb8bdb/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:21:39,768 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5606332f-f19f-4a99-963e-66d796cb8bdb/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:21:39,773 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5606332f-f19f-4a99-963e-66d796cb8bdb/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-27 23:21:40,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:21:40,263 INFO L256 TraceCheckSpWp]: Trace formula consists of 506 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-27 23:21:40,271 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:21:40,420 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 23:21:40,421 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 23:21:40,421 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1718755662] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:21:40,421 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-27 23:21:40,421 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [7] total 10 [2024-11-27 23:21:40,421 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [911618798] [2024-11-27 23:21:40,422 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:21:40,422 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-27 23:21:40,423 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:21:40,423 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-27 23:21:40,424 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2024-11-27 23:21:40,424 INFO L87 Difference]: Start difference. First operand 1181 states and 1660 transitions. Second operand has 5 states, 4 states have (on average 19.75) internal successors, (79), 5 states have internal predecessors, (79), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-27 23:21:40,580 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:21:40,580 INFO L93 Difference]: Finished difference Result 1607 states and 2255 transitions. [2024-11-27 23:21:40,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-27 23:21:40,581 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 19.75) internal successors, (79), 5 states have internal predecessors, (79), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 84 [2024-11-27 23:21:40,581 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:21:40,590 INFO L225 Difference]: With dead ends: 1607 [2024-11-27 23:21:40,591 INFO L226 Difference]: Without dead ends: 1606 [2024-11-27 23:21:40,592 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 83 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2024-11-27 23:21:40,592 INFO L435 NwaCegarLoop]: 671 mSDtfsCounter, 641 mSDsluCounter, 1936 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 641 SdHoareTripleChecker+Valid, 2607 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-27 23:21:40,593 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [641 Valid, 2607 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-27 23:21:40,596 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1606 states. [2024-11-27 23:21:40,659 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1606 to 1557. [2024-11-27 23:21:40,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1557 states, 1496 states have (on average 1.4204545454545454) internal successors, (2125), 1515 states have internal predecessors, (2125), 37 states have call successors, (37), 13 states have call predecessors, (37), 10 states have return successors, (37), 30 states have call predecessors, (37), 37 states have call successors, (37) [2024-11-27 23:21:40,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1557 states to 1557 states and 2199 transitions. [2024-11-27 23:21:40,675 INFO L78 Accepts]: Start accepts. Automaton has 1557 states and 2199 transitions. Word has length 84 [2024-11-27 23:21:40,676 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:21:40,676 INFO L471 AbstractCegarLoop]: Abstraction has 1557 states and 2199 transitions. [2024-11-27 23:21:40,676 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 19.75) internal successors, (79), 5 states have internal predecessors, (79), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-27 23:21:40,677 INFO L276 IsEmpty]: Start isEmpty. Operand 1557 states and 2199 transitions. [2024-11-27 23:21:40,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2024-11-27 23:21:40,678 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:21:40,678 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:21:40,692 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5606332f-f19f-4a99-963e-66d796cb8bdb/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-27 23:21:40,879 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5606332f-f19f-4a99-963e-66d796cb8bdb/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:21:40,879 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-27 23:21:40,880 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:21:40,880 INFO L85 PathProgramCache]: Analyzing trace with hash 308062470, now seen corresponding path program 1 times [2024-11-27 23:21:40,881 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:21:40,881 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1882745235] [2024-11-27 23:21:40,881 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:21:40,881 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:21:40,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:21:41,370 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 23:21:41,370 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:21:41,370 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1882745235] [2024-11-27 23:21:41,370 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1882745235] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:21:41,370 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1629770601] [2024-11-27 23:21:41,370 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:21:41,370 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:21:41,371 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5606332f-f19f-4a99-963e-66d796cb8bdb/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:21:41,375 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5606332f-f19f-4a99-963e-66d796cb8bdb/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:21:41,376 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5606332f-f19f-4a99-963e-66d796cb8bdb/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-27 23:21:41,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:21:41,870 INFO L256 TraceCheckSpWp]: Trace formula consists of 507 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-27 23:21:41,881 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:21:42,188 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 23:21:42,189 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 23:21:42,700 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 23:21:42,701 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1629770601] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 23:21:42,701 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 23:21:42,701 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6, 7] total 17 [2024-11-27 23:21:42,701 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [617435464] [2024-11-27 23:21:42,701 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 23:21:42,702 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-27 23:21:42,702 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:21:42,703 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-27 23:21:42,704 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=235, Unknown=0, NotChecked=0, Total=306 [2024-11-27 23:21:42,704 INFO L87 Difference]: Start difference. First operand 1557 states and 2199 transitions. Second operand has 18 states, 17 states have (on average 13.411764705882353) internal successors, (228), 15 states have internal predecessors, (228), 5 states have call successors, (8), 6 states have call predecessors, (8), 5 states have return successors, (6), 2 states have call predecessors, (6), 5 states have call successors, (6) [2024-11-27 23:21:44,759 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:21:44,759 INFO L93 Difference]: Finished difference Result 4254 states and 5997 transitions. [2024-11-27 23:21:44,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2024-11-27 23:21:44,760 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 13.411764705882353) internal successors, (228), 15 states have internal predecessors, (228), 5 states have call successors, (8), 6 states have call predecessors, (8), 5 states have return successors, (6), 2 states have call predecessors, (6), 5 states have call successors, (6) Word has length 85 [2024-11-27 23:21:44,761 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:21:44,784 INFO L225 Difference]: With dead ends: 4254 [2024-11-27 23:21:44,784 INFO L226 Difference]: Without dead ends: 4252 [2024-11-27 23:21:44,788 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 198 GetRequests, 164 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 253 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=376, Invalid=884, Unknown=0, NotChecked=0, Total=1260 [2024-11-27 23:21:44,788 INFO L435 NwaCegarLoop]: 740 mSDtfsCounter, 4197 mSDsluCounter, 10625 mSDsCounter, 0 mSdLazyCounter, 685 mSolverCounterSat, 141 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4222 SdHoareTripleChecker+Valid, 11365 SdHoareTripleChecker+Invalid, 826 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 141 IncrementalHoareTripleChecker+Valid, 685 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-27 23:21:44,789 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4222 Valid, 11365 Invalid, 826 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [141 Valid, 685 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-27 23:21:44,796 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4252 states. [2024-11-27 23:21:44,943 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4252 to 3265. [2024-11-27 23:21:44,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3265 states, 3145 states have (on average 1.411764705882353) internal successors, (4440), 3166 states have internal predecessors, (4440), 83 states have call successors, (83), 28 states have call predecessors, (83), 23 states have return successors, (106), 70 states have call predecessors, (106), 83 states have call successors, (106) [2024-11-27 23:21:45,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3265 states to 3265 states and 4629 transitions. [2024-11-27 23:21:45,036 INFO L78 Accepts]: Start accepts. Automaton has 3265 states and 4629 transitions. Word has length 85 [2024-11-27 23:21:45,036 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:21:45,037 INFO L471 AbstractCegarLoop]: Abstraction has 3265 states and 4629 transitions. [2024-11-27 23:21:45,037 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 13.411764705882353) internal successors, (228), 15 states have internal predecessors, (228), 5 states have call successors, (8), 6 states have call predecessors, (8), 5 states have return successors, (6), 2 states have call predecessors, (6), 5 states have call successors, (6) [2024-11-27 23:21:45,037 INFO L276 IsEmpty]: Start isEmpty. Operand 3265 states and 4629 transitions. [2024-11-27 23:21:45,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2024-11-27 23:21:45,042 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:21:45,042 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:21:45,057 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5606332f-f19f-4a99-963e-66d796cb8bdb/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-27 23:21:45,244 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5606332f-f19f-4a99-963e-66d796cb8bdb/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:21:45,245 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-27 23:21:45,246 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:21:45,246 INFO L85 PathProgramCache]: Analyzing trace with hash 1558007445, now seen corresponding path program 1 times [2024-11-27 23:21:45,246 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:21:45,246 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1941441189] [2024-11-27 23:21:45,246 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:21:45,246 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:21:45,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:21:45,455 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 23:21:45,455 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:21:45,455 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1941441189] [2024-11-27 23:21:45,455 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1941441189] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:21:45,455 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:21:45,456 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 23:21:45,456 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [439044657] [2024-11-27 23:21:45,456 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:21:45,456 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 23:21:45,456 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:21:45,457 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 23:21:45,457 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 23:21:45,457 INFO L87 Difference]: Start difference. First operand 3265 states and 4629 transitions. Second operand has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 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) [2024-11-27 23:21:45,834 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:21:45,834 INFO L93 Difference]: Finished difference Result 6785 states and 9657 transitions. [2024-11-27 23:21:45,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 23:21:45,835 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 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 83 [2024-11-27 23:21:45,835 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:21:45,855 INFO L225 Difference]: With dead ends: 6785 [2024-11-27 23:21:45,856 INFO L226 Difference]: Without dead ends: 3530 [2024-11-27 23:21:45,861 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 23:21:45,862 INFO L435 NwaCegarLoop]: 910 mSDtfsCounter, 421 mSDsluCounter, 645 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 426 SdHoareTripleChecker+Valid, 1555 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-27 23:21:45,863 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [426 Valid, 1555 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-27 23:21:45,868 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3530 states. [2024-11-27 23:21:46,008 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3530 to 3419. [2024-11-27 23:21:46,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3419 states, 3305 states have (on average 1.4220877458396368) internal successors, (4700), 3325 states have internal predecessors, (4700), 80 states have call successors, (80), 24 states have call predecessors, (80), 20 states have return successors, (102), 69 states have call predecessors, (102), 80 states have call successors, (102) [2024-11-27 23:21:46,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3419 states to 3419 states and 4882 transitions. [2024-11-27 23:21:46,047 INFO L78 Accepts]: Start accepts. Automaton has 3419 states and 4882 transitions. Word has length 83 [2024-11-27 23:21:46,048 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:21:46,048 INFO L471 AbstractCegarLoop]: Abstraction has 3419 states and 4882 transitions. [2024-11-27 23:21:46,048 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 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) [2024-11-27 23:21:46,048 INFO L276 IsEmpty]: Start isEmpty. Operand 3419 states and 4882 transitions. [2024-11-27 23:21:46,049 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-11-27 23:21:46,050 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:21:46,050 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:21:46,050 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-27 23:21:46,050 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting alt_bzeroErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-27 23:21:46,051 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:21:46,052 INFO L85 PathProgramCache]: Analyzing trace with hash -1051488536, now seen corresponding path program 1 times [2024-11-27 23:21:46,052 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:21:46,052 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [457591457] [2024-11-27 23:21:46,052 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:21:46,052 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:21:46,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:21:46,627 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-11-27 23:21:46,627 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:21:46,627 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [457591457] [2024-11-27 23:21:46,627 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [457591457] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:21:46,627 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1660073832] [2024-11-27 23:21:46,628 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:21:46,628 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:21:46,628 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5606332f-f19f-4a99-963e-66d796cb8bdb/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:21:46,630 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5606332f-f19f-4a99-963e-66d796cb8bdb/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:21:46,635 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5606332f-f19f-4a99-963e-66d796cb8bdb/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-27 23:21:47,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:21:47,086 INFO L256 TraceCheckSpWp]: Trace formula consists of 601 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-27 23:21:47,094 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:21:47,355 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 7 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 23:21:47,355 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 23:21:47,721 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-11-27 23:21:47,722 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1660073832] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-27 23:21:47,722 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-27 23:21:47,722 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5, 4] total 12 [2024-11-27 23:21:47,722 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [444047420] [2024-11-27 23:21:47,722 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:21:47,723 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-27 23:21:47,723 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:21:47,723 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-27 23:21:47,724 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=106, Unknown=0, NotChecked=0, Total=156 [2024-11-27 23:21:47,724 INFO L87 Difference]: Start difference. First operand 3419 states and 4882 transitions. Second operand has 6 states, 5 states have (on average 16.2) internal successors, (81), 6 states have internal predecessors, (81), 2 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-27 23:21:47,918 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:21:47,919 INFO L93 Difference]: Finished difference Result 3419 states and 4882 transitions. [2024-11-27 23:21:47,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 23:21:47,920 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 16.2) internal successors, (81), 6 states have internal predecessors, (81), 2 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 94 [2024-11-27 23:21:47,920 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:21:47,938 INFO L225 Difference]: With dead ends: 3419 [2024-11-27 23:21:47,938 INFO L226 Difference]: Without dead ends: 3418 [2024-11-27 23:21:47,940 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 192 GetRequests, 180 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=50, Invalid=106, Unknown=0, NotChecked=0, Total=156 [2024-11-27 23:21:47,941 INFO L435 NwaCegarLoop]: 676 mSDtfsCounter, 1248 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1248 SdHoareTripleChecker+Valid, 676 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-27 23:21:47,941 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1248 Valid, 676 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-27 23:21:47,946 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3418 states. [2024-11-27 23:21:48,098 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3418 to 3418. [2024-11-27 23:21:48,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3418 states, 3305 states have (on average 1.420574886535552) internal successors, (4695), 3324 states have internal predecessors, (4695), 80 states have call successors, (80), 24 states have call predecessors, (80), 20 states have return successors, (102), 69 states have call predecessors, (102), 80 states have call successors, (102) [2024-11-27 23:21:48,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3418 states to 3418 states and 4877 transitions. [2024-11-27 23:21:48,128 INFO L78 Accepts]: Start accepts. Automaton has 3418 states and 4877 transitions. Word has length 94 [2024-11-27 23:21:48,128 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:21:48,129 INFO L471 AbstractCegarLoop]: Abstraction has 3418 states and 4877 transitions. [2024-11-27 23:21:48,129 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 16.2) internal successors, (81), 6 states have internal predecessors, (81), 2 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-27 23:21:48,129 INFO L276 IsEmpty]: Start isEmpty. Operand 3418 states and 4877 transitions. [2024-11-27 23:21:48,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-11-27 23:21:48,131 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:21:48,132 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:21:48,145 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5606332f-f19f-4a99-963e-66d796cb8bdb/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-27 23:21:48,332 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5606332f-f19f-4a99-963e-66d796cb8bdb/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2024-11-27 23:21:48,334 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting alt_bzeroErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-27 23:21:48,335 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:21:48,335 INFO L85 PathProgramCache]: Analyzing trace with hash 1763593821, now seen corresponding path program 1 times [2024-11-27 23:21:48,335 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:21:48,335 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [352913606] [2024-11-27 23:21:48,335 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:21:48,335 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:21:48,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:21:48,837 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-11-27 23:21:48,837 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:21:48,837 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [352913606] [2024-11-27 23:21:48,837 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [352913606] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:21:48,837 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [925938308] [2024-11-27 23:21:48,838 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:21:48,838 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:21:48,838 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5606332f-f19f-4a99-963e-66d796cb8bdb/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:21:48,840 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5606332f-f19f-4a99-963e-66d796cb8bdb/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:21:48,844 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5606332f-f19f-4a99-963e-66d796cb8bdb/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-27 23:21:49,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:21:49,307 INFO L256 TraceCheckSpWp]: Trace formula consists of 602 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-27 23:21:49,313 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:21:49,559 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 23:21:49,559 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 23:21:49,850 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-11-27 23:21:49,851 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [925938308] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 23:21:49,851 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 23:21:49,851 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4, 5] total 12 [2024-11-27 23:21:49,851 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1729444934] [2024-11-27 23:21:49,851 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 23:21:49,852 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-27 23:21:49,852 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:21:49,853 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-27 23:21:49,853 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=100, Unknown=0, NotChecked=0, Total=156 [2024-11-27 23:21:49,854 INFO L87 Difference]: Start difference. First operand 3418 states and 4877 transitions. Second operand has 13 states, 12 states have (on average 20.0) internal successors, (240), 13 states have internal predecessors, (240), 5 states have call successors, (11), 7 states have call predecessors, (11), 6 states have return successors, (9), 5 states have call predecessors, (9), 5 states have call successors, (9) [2024-11-27 23:21:50,966 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:21:50,966 INFO L93 Difference]: Finished difference Result 6651 states and 9466 transitions. [2024-11-27 23:21:50,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-27 23:21:50,967 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 20.0) internal successors, (240), 13 states have internal predecessors, (240), 5 states have call successors, (11), 7 states have call predecessors, (11), 6 states have return successors, (9), 5 states have call predecessors, (9), 5 states have call successors, (9) Word has length 95 [2024-11-27 23:21:50,968 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:21:51,009 INFO L225 Difference]: With dead ends: 6651 [2024-11-27 23:21:51,010 INFO L226 Difference]: Without dead ends: 6650 [2024-11-27 23:21:51,013 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 207 GetRequests, 187 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 81 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=152, Invalid=268, Unknown=0, NotChecked=0, Total=420 [2024-11-27 23:21:51,014 INFO L435 NwaCegarLoop]: 644 mSDtfsCounter, 3706 mSDsluCounter, 2548 mSDsCounter, 0 mSdLazyCounter, 266 mSolverCounterSat, 261 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3724 SdHoareTripleChecker+Valid, 3192 SdHoareTripleChecker+Invalid, 527 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 261 IncrementalHoareTripleChecker+Valid, 266 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-27 23:21:51,015 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3724 Valid, 3192 Invalid, 527 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [261 Valid, 266 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-27 23:21:51,025 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6650 states. [2024-11-27 23:21:51,442 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6650 to 6210. [2024-11-27 23:21:51,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6210 states, 5988 states have (on average 1.4173346693386772) internal successors, (8487), 6012 states have internal predecessors, (8487), 159 states have call successors, (159), 56 states have call predecessors, (159), 50 states have return successors, (197), 141 states have call predecessors, (197), 159 states have call successors, (197) [2024-11-27 23:21:51,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6210 states to 6210 states and 8843 transitions. [2024-11-27 23:21:51,507 INFO L78 Accepts]: Start accepts. Automaton has 6210 states and 8843 transitions. Word has length 95 [2024-11-27 23:21:51,507 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:21:51,508 INFO L471 AbstractCegarLoop]: Abstraction has 6210 states and 8843 transitions. [2024-11-27 23:21:51,511 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 20.0) internal successors, (240), 13 states have internal predecessors, (240), 5 states have call successors, (11), 7 states have call predecessors, (11), 6 states have return successors, (9), 5 states have call predecessors, (9), 5 states have call successors, (9) [2024-11-27 23:21:51,511 INFO L276 IsEmpty]: Start isEmpty. Operand 6210 states and 8843 transitions. [2024-11-27 23:21:51,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2024-11-27 23:21:51,514 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:21:51,514 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:21:51,534 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5606332f-f19f-4a99-963e-66d796cb8bdb/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-27 23:21:51,715 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5606332f-f19f-4a99-963e-66d796cb8bdb/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2024-11-27 23:21:51,715 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-27 23:21:51,716 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:21:51,716 INFO L85 PathProgramCache]: Analyzing trace with hash -915291376, now seen corresponding path program 1 times [2024-11-27 23:21:51,717 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:21:51,717 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [533369949] [2024-11-27 23:21:51,717 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:21:51,717 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:21:51,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:21:52,269 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-27 23:21:52,270 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:21:52,270 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [533369949] [2024-11-27 23:21:52,270 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [533369949] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:21:52,270 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:21:52,270 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 23:21:52,271 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1153342211] [2024-11-27 23:21:52,271 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:21:52,271 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-27 23:21:52,271 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:21:52,272 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-27 23:21:52,272 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-27 23:21:52,273 INFO L87 Difference]: Start difference. First operand 6210 states and 8843 transitions. Second operand has 4 states, 3 states have (on average 33.666666666666664) internal successors, (101), 4 states have internal predecessors, (101), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-27 23:21:52,851 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:21:52,851 INFO L93 Difference]: Finished difference Result 8480 states and 12104 transitions. [2024-11-27 23:21:52,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 23:21:52,852 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 33.666666666666664) internal successors, (101), 4 states have internal predecessors, (101), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 121 [2024-11-27 23:21:52,853 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:21:52,904 INFO L225 Difference]: With dead ends: 8480 [2024-11-27 23:21:52,904 INFO L226 Difference]: Without dead ends: 8478 [2024-11-27 23:21:52,908 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-27 23:21:52,909 INFO L435 NwaCegarLoop]: 658 mSDtfsCounter, 525 mSDsluCounter, 1298 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 535 SdHoareTripleChecker+Valid, 1956 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-27 23:21:52,909 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [535 Valid, 1956 Invalid, 84 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-27 23:21:52,921 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8478 states. [2024-11-27 23:21:53,220 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8478 to 6382. [2024-11-27 23:21:53,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6382 states, 6151 states have (on average 1.412615834823606) internal successors, (8689), 6176 states have internal predecessors, (8689), 168 states have call successors, (168), 56 states have call predecessors, (168), 50 states have return successors, (209), 149 states have call predecessors, (209), 168 states have call successors, (209) [2024-11-27 23:21:53,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6382 states to 6382 states and 9066 transitions. [2024-11-27 23:21:53,271 INFO L78 Accepts]: Start accepts. Automaton has 6382 states and 9066 transitions. Word has length 121 [2024-11-27 23:21:53,271 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:21:53,272 INFO L471 AbstractCegarLoop]: Abstraction has 6382 states and 9066 transitions. [2024-11-27 23:21:53,272 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 33.666666666666664) internal successors, (101), 4 states have internal predecessors, (101), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-27 23:21:53,272 INFO L276 IsEmpty]: Start isEmpty. Operand 6382 states and 9066 transitions. [2024-11-27 23:21:53,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2024-11-27 23:21:53,275 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:21:53,275 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:21:53,275 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-27 23:21:53,275 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-27 23:21:53,276 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:21:53,279 INFO L85 PathProgramCache]: Analyzing trace with hash 559127218, now seen corresponding path program 1 times [2024-11-27 23:21:53,279 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:21:53,279 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1610684619] [2024-11-27 23:21:53,279 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:21:53,280 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:21:53,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:21:53,859 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 7 proven. 7 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-11-27 23:21:53,861 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:21:53,861 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1610684619] [2024-11-27 23:21:53,861 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1610684619] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:21:53,861 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [707001184] [2024-11-27 23:21:53,862 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:21:53,862 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:21:53,862 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5606332f-f19f-4a99-963e-66d796cb8bdb/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:21:53,864 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5606332f-f19f-4a99-963e-66d796cb8bdb/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:21:53,868 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5606332f-f19f-4a99-963e-66d796cb8bdb/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-27 23:21:54,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:21:54,423 INFO L256 TraceCheckSpWp]: Trace formula consists of 795 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-27 23:21:54,430 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:21:54,633 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-11-27 23:21:54,634 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 23:21:54,634 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [707001184] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:21:54,634 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-27 23:21:54,634 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [7] total 10 [2024-11-27 23:21:54,635 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1849187498] [2024-11-27 23:21:54,635 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:21:54,635 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-27 23:21:54,635 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:21:54,636 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-27 23:21:54,636 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2024-11-27 23:21:54,640 INFO L87 Difference]: Start difference. First operand 6382 states and 9066 transitions. Second operand has 7 states, 7 states have (on average 16.428571428571427) internal successors, (115), 5 states have internal predecessors, (115), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-27 23:21:55,144 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:21:55,144 INFO L93 Difference]: Finished difference Result 12086 states and 17212 transitions. [2024-11-27 23:21:55,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-27 23:21:55,146 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.428571428571427) internal successors, (115), 5 states have internal predecessors, (115), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) Word has length 129 [2024-11-27 23:21:55,146 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:21:55,170 INFO L225 Difference]: With dead ends: 12086 [2024-11-27 23:21:55,170 INFO L226 Difference]: Without dead ends: 6124 [2024-11-27 23:21:55,181 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 139 GetRequests, 128 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=116, Unknown=0, NotChecked=0, Total=156 [2024-11-27 23:21:55,182 INFO L435 NwaCegarLoop]: 656 mSDtfsCounter, 162 mSDsluCounter, 3173 mSDsCounter, 0 mSdLazyCounter, 212 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 163 SdHoareTripleChecker+Valid, 3829 SdHoareTripleChecker+Invalid, 227 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 212 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-27 23:21:55,182 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [163 Valid, 3829 Invalid, 227 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 212 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-27 23:21:55,192 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6124 states. [2024-11-27 23:21:55,416 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6124 to 6124. [2024-11-27 23:21:55,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6124 states, 5910 states have (on average 1.415736040609137) internal successors, (8367), 5933 states have internal predecessors, (8367), 157 states have call successors, (157), 50 states have call predecessors, (157), 44 states have return successors, (192), 140 states have call predecessors, (192), 157 states have call successors, (192) [2024-11-27 23:21:55,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6124 states to 6124 states and 8716 transitions. [2024-11-27 23:21:55,455 INFO L78 Accepts]: Start accepts. Automaton has 6124 states and 8716 transitions. Word has length 129 [2024-11-27 23:21:55,455 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:21:55,456 INFO L471 AbstractCegarLoop]: Abstraction has 6124 states and 8716 transitions. [2024-11-27 23:21:55,456 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.428571428571427) internal successors, (115), 5 states have internal predecessors, (115), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-27 23:21:55,456 INFO L276 IsEmpty]: Start isEmpty. Operand 6124 states and 8716 transitions. [2024-11-27 23:21:55,458 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2024-11-27 23:21:55,458 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:21:55,458 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:21:55,472 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5606332f-f19f-4a99-963e-66d796cb8bdb/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-27 23:21:55,662 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5606332f-f19f-4a99-963e-66d796cb8bdb/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2024-11-27 23:21:55,663 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-27 23:21:55,663 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:21:55,664 INFO L85 PathProgramCache]: Analyzing trace with hash 1179526164, now seen corresponding path program 1 times [2024-11-27 23:21:55,664 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:21:55,664 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [477423431] [2024-11-27 23:21:55,664 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:21:55,664 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:21:56,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:21:56,627 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 7 proven. 6 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-27 23:21:56,627 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:21:56,628 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [477423431] [2024-11-27 23:21:56,628 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [477423431] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:21:56,628 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1680015030] [2024-11-27 23:21:56,628 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:21:56,628 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:21:56,628 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5606332f-f19f-4a99-963e-66d796cb8bdb/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:21:56,631 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5606332f-f19f-4a99-963e-66d796cb8bdb/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:21:56,634 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5606332f-f19f-4a99-963e-66d796cb8bdb/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-27 23:21:57,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:21:57,232 INFO L256 TraceCheckSpWp]: Trace formula consists of 805 conjuncts, 31 conjuncts are in the unsatisfiable core [2024-11-27 23:21:57,239 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:21:57,246 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-11-27 23:21:57,279 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-11-27 23:21:57,306 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2024-11-27 23:21:58,346 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-27 23:21:58,346 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 23:21:58,346 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1680015030] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:21:58,347 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-27 23:21:58,347 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [5] total 14 [2024-11-27 23:21:58,347 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1131420395] [2024-11-27 23:21:58,347 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:21:58,348 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-27 23:21:58,349 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:21:58,349 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-27 23:21:58,349 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2024-11-27 23:21:58,349 INFO L87 Difference]: Start difference. First operand 6124 states and 8716 transitions. Second operand has 11 states, 11 states have (on average 10.272727272727273) internal successors, (113), 11 states have internal predecessors, (113), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-27 23:22:01,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:22:01,483 INFO L93 Difference]: Finished difference Result 14285 states and 20374 transitions. [2024-11-27 23:22:01,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-27 23:22:01,484 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 10.272727272727273) internal successors, (113), 11 states have internal predecessors, (113), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 134 [2024-11-27 23:22:01,484 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:22:01,513 INFO L225 Difference]: With dead ends: 14285 [2024-11-27 23:22:01,513 INFO L226 Difference]: Without dead ends: 8258 [2024-11-27 23:22:01,527 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 146 GetRequests, 126 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=101, Invalid=361, Unknown=0, NotChecked=0, Total=462 [2024-11-27 23:22:01,528 INFO L435 NwaCegarLoop]: 645 mSDtfsCounter, 874 mSDsluCounter, 3582 mSDsCounter, 0 mSdLazyCounter, 1250 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 886 SdHoareTripleChecker+Valid, 4227 SdHoareTripleChecker+Invalid, 1257 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 1250 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2024-11-27 23:22:01,528 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [886 Valid, 4227 Invalid, 1257 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 1250 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2024-11-27 23:22:01,540 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8258 states. [2024-11-27 23:22:01,834 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8258 to 6156. [2024-11-27 23:22:01,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6156 states, 5942 states have (on average 1.414338606529788) internal successors, (8404), 5965 states have internal predecessors, (8404), 157 states have call successors, (157), 50 states have call predecessors, (157), 44 states have return successors, (192), 140 states have call predecessors, (192), 157 states have call successors, (192) [2024-11-27 23:22:01,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6156 states to 6156 states and 8753 transitions. [2024-11-27 23:22:01,868 INFO L78 Accepts]: Start accepts. Automaton has 6156 states and 8753 transitions. Word has length 134 [2024-11-27 23:22:01,868 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:22:01,868 INFO L471 AbstractCegarLoop]: Abstraction has 6156 states and 8753 transitions. [2024-11-27 23:22:01,869 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 10.272727272727273) internal successors, (113), 11 states have internal predecessors, (113), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-27 23:22:01,869 INFO L276 IsEmpty]: Start isEmpty. Operand 6156 states and 8753 transitions. [2024-11-27 23:22:01,871 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-11-27 23:22:01,871 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:22:01,872 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:22:01,886 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5606332f-f19f-4a99-963e-66d796cb8bdb/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-27 23:22:02,072 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5606332f-f19f-4a99-963e-66d796cb8bdb/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2024-11-27 23:22:02,073 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-27 23:22:02,074 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:22:02,074 INFO L85 PathProgramCache]: Analyzing trace with hash -1050266909, now seen corresponding path program 1 times [2024-11-27 23:22:02,074 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:22:02,074 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2135566958] [2024-11-27 23:22:02,074 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:22:02,075 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:22:02,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:22:02,643 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 7 proven. 6 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-27 23:22:02,643 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:22:02,643 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2135566958] [2024-11-27 23:22:02,644 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2135566958] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:22:02,644 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1378907546] [2024-11-27 23:22:02,644 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:22:02,644 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:22:02,644 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5606332f-f19f-4a99-963e-66d796cb8bdb/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:22:02,647 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5606332f-f19f-4a99-963e-66d796cb8bdb/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:22:02,650 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5606332f-f19f-4a99-963e-66d796cb8bdb/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-27 23:22:03,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:22:03,315 INFO L256 TraceCheckSpWp]: Trace formula consists of 806 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-11-27 23:22:03,320 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:22:03,464 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 23:22:03,465 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 23:22:03,465 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1378907546] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:22:03,465 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-27 23:22:03,465 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [5] total 11 [2024-11-27 23:22:03,465 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [707106291] [2024-11-27 23:22:03,465 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:22:03,466 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-27 23:22:03,466 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:22:03,467 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-27 23:22:03,467 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2024-11-27 23:22:03,468 INFO L87 Difference]: Start difference. First operand 6156 states and 8753 transitions. Second operand has 9 states, 9 states have (on average 13.88888888888889) internal successors, (125), 9 states have internal predecessors, (125), 3 states have call successors, (5), 2 states have call predecessors, (5), 4 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2024-11-27 23:22:03,819 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:22:03,819 INFO L93 Difference]: Finished difference Result 9340 states and 13244 transitions. [2024-11-27 23:22:03,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-27 23:22:03,820 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 13.88888888888889) internal successors, (125), 9 states have internal predecessors, (125), 3 states have call successors, (5), 2 states have call predecessors, (5), 4 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) Word has length 135 [2024-11-27 23:22:03,821 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:22:03,839 INFO L225 Difference]: With dead ends: 9340 [2024-11-27 23:22:03,840 INFO L226 Difference]: Without dead ends: 3351 [2024-11-27 23:22:03,851 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 141 GetRequests, 130 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2024-11-27 23:22:03,853 INFO L435 NwaCegarLoop]: 668 mSDtfsCounter, 13 mSDsluCounter, 4638 mSDsCounter, 0 mSdLazyCounter, 129 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 5306 SdHoareTripleChecker+Invalid, 135 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 129 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-27 23:22:03,853 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 5306 Invalid, 135 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 129 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-27 23:22:03,857 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3351 states. [2024-11-27 23:22:04,055 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3351 to 3349. [2024-11-27 23:22:04,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3349 states, 3211 states have (on average 1.4026782933665525) internal successors, (4504), 3227 states have internal predecessors, (4504), 86 states have call successors, (86), 42 states have call predecessors, (86), 39 states have return successors, (97), 79 states have call predecessors, (97), 86 states have call successors, (97) [2024-11-27 23:22:04,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3349 states to 3349 states and 4687 transitions. [2024-11-27 23:22:04,075 INFO L78 Accepts]: Start accepts. Automaton has 3349 states and 4687 transitions. Word has length 135 [2024-11-27 23:22:04,075 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:22:04,075 INFO L471 AbstractCegarLoop]: Abstraction has 3349 states and 4687 transitions. [2024-11-27 23:22:04,077 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 13.88888888888889) internal successors, (125), 9 states have internal predecessors, (125), 3 states have call successors, (5), 2 states have call predecessors, (5), 4 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2024-11-27 23:22:04,077 INFO L276 IsEmpty]: Start isEmpty. Operand 3349 states and 4687 transitions. [2024-11-27 23:22:04,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2024-11-27 23:22:04,079 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:22:04,079 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:22:04,094 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5606332f-f19f-4a99-963e-66d796cb8bdb/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2024-11-27 23:22:04,283 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5606332f-f19f-4a99-963e-66d796cb8bdb/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2024-11-27 23:22:04,284 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-27 23:22:04,284 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:22:04,285 INFO L85 PathProgramCache]: Analyzing trace with hash -1372295827, now seen corresponding path program 1 times [2024-11-27 23:22:04,285 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:22:04,285 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2139960572] [2024-11-27 23:22:04,285 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:22:04,285 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:22:04,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:22:05,175 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 7 proven. 10 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-11-27 23:22:05,175 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:22:05,176 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2139960572] [2024-11-27 23:22:05,176 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2139960572] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:22:05,176 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1947968431] [2024-11-27 23:22:05,176 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:22:05,176 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:22:05,176 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5606332f-f19f-4a99-963e-66d796cb8bdb/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:22:05,179 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5606332f-f19f-4a99-963e-66d796cb8bdb/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:22:05,183 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5606332f-f19f-4a99-963e-66d796cb8bdb/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-27 23:22:05,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:22:05,830 INFO L256 TraceCheckSpWp]: Trace formula consists of 836 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-11-27 23:22:05,834 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:22:05,980 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 24 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-27 23:22:05,980 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 23:22:06,213 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 7 proven. 10 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-11-27 23:22:06,214 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1947968431] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 23:22:06,214 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 23:22:06,214 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 10, 6] total 17 [2024-11-27 23:22:06,214 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1453671459] [2024-11-27 23:22:06,214 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 23:22:06,215 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-11-27 23:22:06,217 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:22:06,218 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-11-27 23:22:06,218 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=220, Unknown=0, NotChecked=0, Total=272 [2024-11-27 23:22:06,219 INFO L87 Difference]: Start difference. First operand 3349 states and 4687 transitions. Second operand has 17 states, 17 states have (on average 9.176470588235293) internal successors, (156), 17 states have internal predecessors, (156), 3 states have call successors, (8), 2 states have call predecessors, (8), 7 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2024-11-27 23:22:06,862 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:22:06,862 INFO L93 Difference]: Finished difference Result 6584 states and 9235 transitions. [2024-11-27 23:22:06,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-27 23:22:06,863 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 9.176470588235293) internal successors, (156), 17 states have internal predecessors, (156), 3 states have call successors, (8), 2 states have call predecessors, (8), 7 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 137 [2024-11-27 23:22:06,864 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:22:06,876 INFO L225 Difference]: With dead ends: 6584 [2024-11-27 23:22:06,876 INFO L226 Difference]: Without dead ends: 3411 [2024-11-27 23:22:06,881 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 288 GetRequests, 265 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=114, Invalid=486, Unknown=0, NotChecked=0, Total=600 [2024-11-27 23:22:06,882 INFO L435 NwaCegarLoop]: 668 mSDtfsCounter, 28 mSDsluCounter, 5318 mSDsCounter, 0 mSdLazyCounter, 264 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 5986 SdHoareTripleChecker+Invalid, 277 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 264 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-27 23:22:06,883 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 5986 Invalid, 277 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 264 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-27 23:22:06,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3411 states. [2024-11-27 23:22:06,989 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3411 to 3389. [2024-11-27 23:22:06,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3389 states, 3250 states have (on average 1.4027692307692308) internal successors, (4559), 3263 states have internal predecessors, (4559), 86 states have call successors, (86), 46 states have call predecessors, (86), 40 states have return successors, (93), 79 states have call predecessors, (93), 86 states have call successors, (93) [2024-11-27 23:22:07,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3389 states to 3389 states and 4738 transitions. [2024-11-27 23:22:07,007 INFO L78 Accepts]: Start accepts. Automaton has 3389 states and 4738 transitions. Word has length 137 [2024-11-27 23:22:07,008 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:22:07,008 INFO L471 AbstractCegarLoop]: Abstraction has 3389 states and 4738 transitions. [2024-11-27 23:22:07,008 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 9.176470588235293) internal successors, (156), 17 states have internal predecessors, (156), 3 states have call successors, (8), 2 states have call predecessors, (8), 7 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2024-11-27 23:22:07,009 INFO L276 IsEmpty]: Start isEmpty. Operand 3389 states and 4738 transitions. [2024-11-27 23:22:07,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2024-11-27 23:22:07,010 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:22:07,011 INFO L218 NwaCegarLoop]: trace histogram [6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:22:07,027 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5606332f-f19f-4a99-963e-66d796cb8bdb/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2024-11-27 23:22:07,214 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5606332f-f19f-4a99-963e-66d796cb8bdb/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:22:07,215 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-27 23:22:07,216 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:22:07,216 INFO L85 PathProgramCache]: Analyzing trace with hash 1268732227, now seen corresponding path program 2 times [2024-11-27 23:22:07,216 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:22:07,216 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [898865063] [2024-11-27 23:22:07,216 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-27 23:22:07,217 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:22:07,704 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-27 23:22:07,705 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 23:22:08,604 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 7 proven. 30 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-27 23:22:08,604 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:22:08,604 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [898865063] [2024-11-27 23:22:08,604 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [898865063] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:22:08,605 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1181929434] [2024-11-27 23:22:08,605 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-27 23:22:08,605 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:22:08,605 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5606332f-f19f-4a99-963e-66d796cb8bdb/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:22:08,608 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5606332f-f19f-4a99-963e-66d796cb8bdb/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:22:08,612 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5606332f-f19f-4a99-963e-66d796cb8bdb/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-27 23:22:09,159 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-27 23:22:09,159 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 23:22:09,161 INFO L256 TraceCheckSpWp]: Trace formula consists of 120 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-27 23:22:09,167 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:22:09,181 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2024-11-27 23:22:09,200 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2024-11-27 23:22:09,200 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 23:22:09,200 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1181929434] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:22:09,200 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-27 23:22:09,201 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [9] total 10 [2024-11-27 23:22:09,201 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [247339724] [2024-11-27 23:22:09,201 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:22:09,202 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 23:22:09,202 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:22:09,203 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 23:22:09,203 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2024-11-27 23:22:09,204 INFO L87 Difference]: Start difference. First operand 3389 states and 4738 transitions. Second operand has 3 states, 2 states have (on average 55.0) internal successors, (110), 3 states have internal predecessors, (110), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-27 23:22:09,317 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:22:09,318 INFO L93 Difference]: Finished difference Result 3389 states and 4738 transitions. [2024-11-27 23:22:09,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 23:22:09,318 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 55.0) internal successors, (110), 3 states have internal predecessors, (110), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 141 [2024-11-27 23:22:09,319 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:22:09,337 INFO L225 Difference]: With dead ends: 3389 [2024-11-27 23:22:09,338 INFO L226 Difference]: Without dead ends: 3388 [2024-11-27 23:22:09,339 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 149 GetRequests, 141 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2024-11-27 23:22:09,340 INFO L435 NwaCegarLoop]: 676 mSDtfsCounter, 1 mSDsluCounter, 674 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 1350 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-27 23:22:09,340 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 1350 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-27 23:22:09,344 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3388 states. [2024-11-27 23:22:09,468 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3388 to 3388. [2024-11-27 23:22:09,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3388 states, 3250 states have (on average 1.400923076923077) internal successors, (4553), 3262 states have internal predecessors, (4553), 86 states have call successors, (86), 46 states have call predecessors, (86), 40 states have return successors, (93), 79 states have call predecessors, (93), 86 states have call successors, (93) [2024-11-27 23:22:09,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3388 states to 3388 states and 4732 transitions. [2024-11-27 23:22:09,485 INFO L78 Accepts]: Start accepts. Automaton has 3388 states and 4732 transitions. Word has length 141 [2024-11-27 23:22:09,487 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:22:09,487 INFO L471 AbstractCegarLoop]: Abstraction has 3388 states and 4732 transitions. [2024-11-27 23:22:09,488 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 55.0) internal successors, (110), 3 states have internal predecessors, (110), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-27 23:22:09,488 INFO L276 IsEmpty]: Start isEmpty. Operand 3388 states and 4732 transitions. [2024-11-27 23:22:09,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2024-11-27 23:22:09,490 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:22:09,490 INFO L218 NwaCegarLoop]: trace histogram [6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:22:09,502 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5606332f-f19f-4a99-963e-66d796cb8bdb/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-11-27 23:22:09,690 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5606332f-f19f-4a99-963e-66d796cb8bdb/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:22:09,691 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-27 23:22:09,692 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:22:09,692 INFO L85 PathProgramCache]: Analyzing trace with hash 675993478, now seen corresponding path program 1 times [2024-11-27 23:22:09,692 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:22:09,692 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [245496361] [2024-11-27 23:22:09,692 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:22:09,692 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:22:10,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:22:11,008 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 8 proven. 30 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-27 23:22:11,009 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:22:11,009 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [245496361] [2024-11-27 23:22:11,009 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [245496361] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:22:11,009 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1836114888] [2024-11-27 23:22:11,009 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:22:11,009 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:22:11,010 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5606332f-f19f-4a99-963e-66d796cb8bdb/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:22:11,012 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5606332f-f19f-4a99-963e-66d796cb8bdb/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:22:11,016 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5606332f-f19f-4a99-963e-66d796cb8bdb/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-11-27 23:22:11,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:22:11,633 INFO L256 TraceCheckSpWp]: Trace formula consists of 897 conjuncts, 29 conjuncts are in the unsatisfiable core [2024-11-27 23:22:11,639 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:22:11,982 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 36 proven. 10 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-27 23:22:11,983 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 23:22:12,616 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 8 proven. 30 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-27 23:22:12,616 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1836114888] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 23:22:12,616 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 23:22:12,617 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 14, 9] total 27 [2024-11-27 23:22:12,617 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1485993414] [2024-11-27 23:22:12,617 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 23:22:12,619 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2024-11-27 23:22:12,619 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:22:12,620 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2024-11-27 23:22:12,620 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=126, Invalid=576, Unknown=0, NotChecked=0, Total=702 [2024-11-27 23:22:12,621 INFO L87 Difference]: Start difference. First operand 3388 states and 4732 transitions. Second operand has 27 states, 27 states have (on average 6.222222222222222) internal successors, (168), 27 states have internal predecessors, (168), 3 states have call successors, (8), 2 states have call predecessors, (8), 7 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2024-11-27 23:22:14,769 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:22:14,769 INFO L93 Difference]: Finished difference Result 6474 states and 9025 transitions. [2024-11-27 23:22:14,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2024-11-27 23:22:14,771 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 27 states have (on average 6.222222222222222) internal successors, (168), 27 states have internal predecessors, (168), 3 states have call successors, (8), 2 states have call predecessors, (8), 7 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 142 [2024-11-27 23:22:14,771 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:22:14,785 INFO L225 Difference]: With dead ends: 6474 [2024-11-27 23:22:14,785 INFO L226 Difference]: Without dead ends: 3089 [2024-11-27 23:22:14,791 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 310 GetRequests, 268 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 182 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=380, Invalid=1512, Unknown=0, NotChecked=0, Total=1892 [2024-11-27 23:22:14,792 INFO L435 NwaCegarLoop]: 578 mSDtfsCounter, 63 mSDsluCounter, 8604 mSDsCounter, 0 mSdLazyCounter, 791 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 9182 SdHoareTripleChecker+Invalid, 816 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 791 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-27 23:22:14,793 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [63 Valid, 9182 Invalid, 816 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 791 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-27 23:22:14,796 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3089 states. [2024-11-27 23:22:14,996 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3089 to 3058. [2024-11-27 23:22:15,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3058 states, 2920 states have (on average 1.378082191780822) internal successors, (4024), 2932 states have internal predecessors, (4024), 86 states have call successors, (86), 46 states have call predecessors, (86), 40 states have return successors, (93), 79 states have call predecessors, (93), 86 states have call successors, (93) [2024-11-27 23:22:15,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3058 states to 3058 states and 4203 transitions. [2024-11-27 23:22:15,016 INFO L78 Accepts]: Start accepts. Automaton has 3058 states and 4203 transitions. Word has length 142 [2024-11-27 23:22:15,017 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:22:15,017 INFO L471 AbstractCegarLoop]: Abstraction has 3058 states and 4203 transitions. [2024-11-27 23:22:15,017 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 27 states have (on average 6.222222222222222) internal successors, (168), 27 states have internal predecessors, (168), 3 states have call successors, (8), 2 states have call predecessors, (8), 7 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2024-11-27 23:22:15,017 INFO L276 IsEmpty]: Start isEmpty. Operand 3058 states and 4203 transitions. [2024-11-27 23:22:15,020 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-11-27 23:22:15,020 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:22:15,020 INFO L218 NwaCegarLoop]: trace histogram [15, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:22:15,037 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5606332f-f19f-4a99-963e-66d796cb8bdb/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2024-11-27 23:22:15,224 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5606332f-f19f-4a99-963e-66d796cb8bdb/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:22:15,226 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-27 23:22:15,226 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:22:15,227 INFO L85 PathProgramCache]: Analyzing trace with hash 735900537, now seen corresponding path program 2 times [2024-11-27 23:22:15,227 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:22:15,227 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1246124755] [2024-11-27 23:22:15,227 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-27 23:22:15,227 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:22:15,689 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-27 23:22:15,690 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 23:22:17,160 INFO L134 CoverageAnalysis]: Checked inductivity of 157 backedges. 8 proven. 126 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2024-11-27 23:22:17,161 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:22:17,161 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1246124755] [2024-11-27 23:22:17,161 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1246124755] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:22:17,161 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2096102570] [2024-11-27 23:22:17,161 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-27 23:22:17,161 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:22:17,162 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5606332f-f19f-4a99-963e-66d796cb8bdb/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:22:17,164 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5606332f-f19f-4a99-963e-66d796cb8bdb/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:22:17,168 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5606332f-f19f-4a99-963e-66d796cb8bdb/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-11-27 23:22:18,420 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-27 23:22:18,420 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 23:22:18,427 INFO L256 TraceCheckSpWp]: Trace formula consists of 1032 conjuncts, 54 conjuncts are in the unsatisfiable core [2024-11-27 23:22:18,433 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:22:19,166 INFO L134 CoverageAnalysis]: Checked inductivity of 157 backedges. 10 proven. 127 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2024-11-27 23:22:19,166 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 23:22:20,013 INFO L134 CoverageAnalysis]: Checked inductivity of 157 backedges. 79 proven. 15 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2024-11-27 23:22:20,013 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2096102570] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 23:22:20,013 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 23:22:20,014 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 17, 10] total 37 [2024-11-27 23:22:20,014 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1302288659] [2024-11-27 23:22:20,014 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 23:22:20,015 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 37 states [2024-11-27 23:22:20,015 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:22:20,016 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2024-11-27 23:22:20,016 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=226, Invalid=1106, Unknown=0, NotChecked=0, Total=1332 [2024-11-27 23:22:20,016 INFO L87 Difference]: Start difference. First operand 3058 states and 4203 transitions. Second operand has 37 states, 37 states have (on average 4.648648648648648) internal successors, (172), 37 states have internal predecessors, (172), 3 states have call successors, (8), 1 states have call predecessors, (8), 7 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2024-11-27 23:22:23,692 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:22:23,692 INFO L93 Difference]: Finished difference Result 6152 states and 8513 transitions. [2024-11-27 23:22:23,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2024-11-27 23:22:23,693 INFO L78 Accepts]: Start accepts. Automaton has has 37 states, 37 states have (on average 4.648648648648648) internal successors, (172), 37 states have internal predecessors, (172), 3 states have call successors, (8), 1 states have call predecessors, (8), 7 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 151 [2024-11-27 23:22:23,693 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:22:23,705 INFO L225 Difference]: With dead ends: 6152 [2024-11-27 23:22:23,705 INFO L226 Difference]: Without dead ends: 3180 [2024-11-27 23:22:23,711 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 355 GetRequests, 283 SyntacticMatches, 0 SemanticMatches, 72 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 967 ImplicationChecksByTransitivity, 3.9s TimeCoverageRelationStatistics Valid=850, Invalid=4552, Unknown=0, NotChecked=0, Total=5402 [2024-11-27 23:22:23,712 INFO L435 NwaCegarLoop]: 590 mSDtfsCounter, 37 mSDsluCounter, 11151 mSDsCounter, 0 mSdLazyCounter, 961 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 11741 SdHoareTripleChecker+Invalid, 982 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 961 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-27 23:22:23,712 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [37 Valid, 11741 Invalid, 982 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 961 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-27 23:22:23,716 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3180 states. [2024-11-27 23:22:23,910 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3180 to 3119. [2024-11-27 23:22:23,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3119 states, 2981 states have (on average 1.3726937269372694) internal successors, (4092), 2992 states have internal predecessors, (4092), 86 states have call successors, (86), 47 states have call predecessors, (86), 40 states have return successors, (93), 79 states have call predecessors, (93), 86 states have call successors, (93) [2024-11-27 23:22:23,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3119 states to 3119 states and 4271 transitions. [2024-11-27 23:22:23,924 INFO L78 Accepts]: Start accepts. Automaton has 3119 states and 4271 transitions. Word has length 151 [2024-11-27 23:22:23,925 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:22:23,925 INFO L471 AbstractCegarLoop]: Abstraction has 3119 states and 4271 transitions. [2024-11-27 23:22:23,925 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 37 states, 37 states have (on average 4.648648648648648) internal successors, (172), 37 states have internal predecessors, (172), 3 states have call successors, (8), 1 states have call predecessors, (8), 7 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2024-11-27 23:22:23,925 INFO L276 IsEmpty]: Start isEmpty. Operand 3119 states and 4271 transitions. [2024-11-27 23:22:23,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2024-11-27 23:22:23,927 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:22:23,928 INFO L218 NwaCegarLoop]: trace histogram [28, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:22:23,945 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5606332f-f19f-4a99-963e-66d796cb8bdb/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2024-11-27 23:22:24,128 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5606332f-f19f-4a99-963e-66d796cb8bdb/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:22:24,128 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-27 23:22:24,129 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:22:24,129 INFO L85 PathProgramCache]: Analyzing trace with hash -285120068, now seen corresponding path program 3 times [2024-11-27 23:22:24,129 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:22:24,129 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [952150416] [2024-11-27 23:22:24,129 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-27 23:22:24,129 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:22:24,279 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-11-27 23:22:24,280 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 23:22:24,716 INFO L134 CoverageAnalysis]: Checked inductivity of 456 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 448 trivial. 0 not checked. [2024-11-27 23:22:24,717 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:22:24,717 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [952150416] [2024-11-27 23:22:24,717 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [952150416] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:22:24,717 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:22:24,717 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-27 23:22:24,718 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [717361354] [2024-11-27 23:22:24,718 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:22:24,718 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-27 23:22:24,718 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:22:24,719 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-27 23:22:24,719 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-27 23:22:24,720 INFO L87 Difference]: Start difference. First operand 3119 states and 4271 transitions. Second operand has 4 states, 4 states have (on average 29.0) internal successors, (116), 4 states have internal predecessors, (116), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-27 23:22:25,184 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:22:25,184 INFO L93 Difference]: Finished difference Result 6190 states and 8488 transitions. [2024-11-27 23:22:25,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 23:22:25,185 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 29.0) internal successors, (116), 4 states have internal predecessors, (116), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 164 [2024-11-27 23:22:25,185 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:22:25,200 INFO L225 Difference]: With dead ends: 6190 [2024-11-27 23:22:25,200 INFO L226 Difference]: Without dead ends: 3119 [2024-11-27 23:22:25,206 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-27 23:22:25,207 INFO L435 NwaCegarLoop]: 592 mSDtfsCounter, 17 mSDsluCounter, 1055 mSDsCounter, 0 mSdLazyCounter, 112 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 1647 SdHoareTripleChecker+Invalid, 112 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 112 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-27 23:22:25,207 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 1647 Invalid, 112 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 112 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-27 23:22:25,210 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3119 states. [2024-11-27 23:22:25,442 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3119 to 3119. [2024-11-27 23:22:25,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3119 states, 2981 states have (on average 1.3703455216370346) internal successors, (4085), 2992 states have internal predecessors, (4085), 86 states have call successors, (86), 47 states have call predecessors, (86), 40 states have return successors, (93), 79 states have call predecessors, (93), 86 states have call successors, (93) [2024-11-27 23:22:25,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3119 states to 3119 states and 4264 transitions. [2024-11-27 23:22:25,456 INFO L78 Accepts]: Start accepts. Automaton has 3119 states and 4264 transitions. Word has length 164 [2024-11-27 23:22:25,456 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:22:25,456 INFO L471 AbstractCegarLoop]: Abstraction has 3119 states and 4264 transitions. [2024-11-27 23:22:25,457 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 29.0) internal successors, (116), 4 states have internal predecessors, (116), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-27 23:22:25,457 INFO L276 IsEmpty]: Start isEmpty. Operand 3119 states and 4264 transitions. [2024-11-27 23:22:25,460 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2024-11-27 23:22:25,460 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:22:25,460 INFO L218 NwaCegarLoop]: trace histogram [28, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:22:25,461 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-27 23:22:25,461 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-27 23:22:25,462 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:22:25,462 INFO L85 PathProgramCache]: Analyzing trace with hash -1443078448, now seen corresponding path program 1 times [2024-11-27 23:22:25,462 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:22:25,462 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1762046479] [2024-11-27 23:22:25,462 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:22:25,463 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:22:25,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:22:26,243 INFO L134 CoverageAnalysis]: Checked inductivity of 456 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 448 trivial. 0 not checked. [2024-11-27 23:22:26,244 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:22:26,244 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1762046479] [2024-11-27 23:22:26,244 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1762046479] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:22:26,244 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:22:26,244 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-27 23:22:26,244 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [903505479] [2024-11-27 23:22:26,244 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:22:26,245 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-27 23:22:26,245 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:22:26,245 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-27 23:22:26,246 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-27 23:22:26,246 INFO L87 Difference]: Start difference. First operand 3119 states and 4264 transitions. Second operand has 6 states, 6 states have (on average 19.5) internal successors, (117), 6 states have internal predecessors, (117), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-27 23:22:26,776 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:22:26,777 INFO L93 Difference]: Finished difference Result 6208 states and 8505 transitions. [2024-11-27 23:22:26,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-27 23:22:26,777 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 19.5) internal successors, (117), 6 states have internal predecessors, (117), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 165 [2024-11-27 23:22:26,778 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:22:26,790 INFO L225 Difference]: With dead ends: 6208 [2024-11-27 23:22:26,790 INFO L226 Difference]: Without dead ends: 3140 [2024-11-27 23:22:26,796 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-27 23:22:26,799 INFO L435 NwaCegarLoop]: 591 mSDtfsCounter, 8 mSDsluCounter, 2068 mSDsCounter, 0 mSdLazyCounter, 309 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 2659 SdHoareTripleChecker+Invalid, 310 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 309 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-27 23:22:26,799 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 2659 Invalid, 310 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 309 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-27 23:22:26,802 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3140 states. [2024-11-27 23:22:26,997 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3140 to 3140. [2024-11-27 23:22:27,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3140 states, 3002 states have (on average 1.3677548301132578) internal successors, (4106), 3013 states have internal predecessors, (4106), 86 states have call successors, (86), 47 states have call predecessors, (86), 40 states have return successors, (93), 79 states have call predecessors, (93), 86 states have call successors, (93) [2024-11-27 23:22:27,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3140 states to 3140 states and 4285 transitions. [2024-11-27 23:22:27,012 INFO L78 Accepts]: Start accepts. Automaton has 3140 states and 4285 transitions. Word has length 165 [2024-11-27 23:22:27,012 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:22:27,012 INFO L471 AbstractCegarLoop]: Abstraction has 3140 states and 4285 transitions. [2024-11-27 23:22:27,013 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 19.5) internal successors, (117), 6 states have internal predecessors, (117), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-27 23:22:27,013 INFO L276 IsEmpty]: Start isEmpty. Operand 3140 states and 4285 transitions. [2024-11-27 23:22:27,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2024-11-27 23:22:27,015 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:22:27,015 INFO L218 NwaCegarLoop]: trace histogram [28, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:22:27,015 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-27 23:22:27,015 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-27 23:22:27,016 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:22:27,016 INFO L85 PathProgramCache]: Analyzing trace with hash -1942187997, now seen corresponding path program 1 times [2024-11-27 23:22:27,017 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:22:27,017 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [992826668] [2024-11-27 23:22:27,017 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:22:27,017 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:22:27,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:22:27,780 INFO L134 CoverageAnalysis]: Checked inductivity of 456 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 448 trivial. 0 not checked. [2024-11-27 23:22:27,780 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:22:27,780 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [992826668] [2024-11-27 23:22:27,780 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [992826668] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:22:27,780 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:22:27,781 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-27 23:22:27,781 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [451199239] [2024-11-27 23:22:27,781 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:22:27,781 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-27 23:22:27,782 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:22:27,782 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-27 23:22:27,782 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-27 23:22:27,782 INFO L87 Difference]: Start difference. First operand 3140 states and 4285 transitions. Second operand has 7 states, 7 states have (on average 16.857142857142858) internal successors, (118), 7 states have internal predecessors, (118), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-27 23:22:28,562 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:22:28,562 INFO L93 Difference]: Finished difference Result 6254 states and 8554 transitions. [2024-11-27 23:22:28,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-27 23:22:28,563 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.857142857142858) internal successors, (118), 7 states have internal predecessors, (118), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 166 [2024-11-27 23:22:28,564 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:22:28,580 INFO L225 Difference]: With dead ends: 6254 [2024-11-27 23:22:28,580 INFO L226 Difference]: Without dead ends: 3175 [2024-11-27 23:22:28,586 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-27 23:22:28,587 INFO L435 NwaCegarLoop]: 581 mSDtfsCounter, 12 mSDsluCounter, 2585 mSDsCounter, 0 mSdLazyCounter, 399 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 3166 SdHoareTripleChecker+Invalid, 400 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 399 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-27 23:22:28,587 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 3166 Invalid, 400 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 399 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-27 23:22:28,591 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3175 states. [2024-11-27 23:22:28,857 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3175 to 3168. [2024-11-27 23:22:28,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3168 states, 3030 states have (on average 1.3666666666666667) internal successors, (4141), 3041 states have internal predecessors, (4141), 86 states have call successors, (86), 47 states have call predecessors, (86), 40 states have return successors, (93), 79 states have call predecessors, (93), 86 states have call successors, (93) [2024-11-27 23:22:28,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3168 states to 3168 states and 4320 transitions. [2024-11-27 23:22:28,872 INFO L78 Accepts]: Start accepts. Automaton has 3168 states and 4320 transitions. Word has length 166 [2024-11-27 23:22:28,873 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:22:28,873 INFO L471 AbstractCegarLoop]: Abstraction has 3168 states and 4320 transitions. [2024-11-27 23:22:28,873 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.857142857142858) internal successors, (118), 7 states have internal predecessors, (118), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-27 23:22:28,873 INFO L276 IsEmpty]: Start isEmpty. Operand 3168 states and 4320 transitions. [2024-11-27 23:22:28,875 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2024-11-27 23:22:28,875 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:22:28,876 INFO L218 NwaCegarLoop]: trace histogram [28, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:22:28,876 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-27 23:22:28,876 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-27 23:22:28,877 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:22:28,877 INFO L85 PathProgramCache]: Analyzing trace with hash -1892461121, now seen corresponding path program 1 times [2024-11-27 23:22:28,877 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:22:28,877 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [828217312] [2024-11-27 23:22:28,877 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:22:28,877 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:22:29,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:22:30,929 INFO L134 CoverageAnalysis]: Checked inductivity of 456 backedges. 8 proven. 287 refuted. 0 times theorem prover too weak. 161 trivial. 0 not checked. [2024-11-27 23:22:30,929 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:22:30,929 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [828217312] [2024-11-27 23:22:30,929 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [828217312] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:22:30,930 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [367542837] [2024-11-27 23:22:30,930 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:22:30,930 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:22:30,930 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5606332f-f19f-4a99-963e-66d796cb8bdb/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:22:30,932 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5606332f-f19f-4a99-963e-66d796cb8bdb/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:22:30,937 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5606332f-f19f-4a99-963e-66d796cb8bdb/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-11-27 23:22:32,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:22:32,543 INFO L256 TraceCheckSpWp]: Trace formula consists of 1226 conjuncts, 78 conjuncts are in the unsatisfiable core [2024-11-27 23:22:32,549 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:22:33,295 INFO L134 CoverageAnalysis]: Checked inductivity of 456 backedges. 237 proven. 66 refuted. 0 times theorem prover too weak. 153 trivial. 0 not checked. [2024-11-27 23:22:33,295 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 23:22:34,890 INFO L134 CoverageAnalysis]: Checked inductivity of 456 backedges. 8 proven. 287 refuted. 0 times theorem prover too weak. 161 trivial. 0 not checked. [2024-11-27 23:22:34,891 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [367542837] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 23:22:34,891 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 23:22:34,891 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 20, 16] total 47 [2024-11-27 23:22:34,891 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [39430959] [2024-11-27 23:22:34,891 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 23:22:34,892 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 47 states [2024-11-27 23:22:34,892 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:22:34,892 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 47 interpolants. [2024-11-27 23:22:34,893 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=432, Invalid=1730, Unknown=0, NotChecked=0, Total=2162 [2024-11-27 23:22:34,893 INFO L87 Difference]: Start difference. First operand 3168 states and 4320 transitions. Second operand has 47 states, 47 states have (on average 4.0212765957446805) internal successors, (189), 47 states have internal predecessors, (189), 3 states have call successors, (8), 2 states have call predecessors, (8), 7 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2024-11-27 23:22:46,517 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:22:46,517 INFO L93 Difference]: Finished difference Result 6347 states and 8715 transitions. [2024-11-27 23:22:46,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2024-11-27 23:22:46,518 INFO L78 Accepts]: Start accepts. Automaton has has 47 states, 47 states have (on average 4.0212765957446805) internal successors, (189), 47 states have internal predecessors, (189), 3 states have call successors, (8), 2 states have call predecessors, (8), 7 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 166 [2024-11-27 23:22:46,518 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:22:46,533 INFO L225 Difference]: With dead ends: 6347 [2024-11-27 23:22:46,533 INFO L226 Difference]: Without dead ends: 3279 [2024-11-27 23:22:46,540 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 386 GetRequests, 303 SyntacticMatches, 0 SemanticMatches, 83 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 797 ImplicationChecksByTransitivity, 12.0s TimeCoverageRelationStatistics Valid=1624, Invalid=5516, Unknown=0, NotChecked=0, Total=7140 [2024-11-27 23:22:46,541 INFO L435 NwaCegarLoop]: 590 mSDtfsCounter, 79 mSDsluCounter, 10552 mSDsCounter, 0 mSdLazyCounter, 1300 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 79 SdHoareTripleChecker+Valid, 11142 SdHoareTripleChecker+Invalid, 1340 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 1300 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-27 23:22:46,541 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [79 Valid, 11142 Invalid, 1340 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 1300 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-27 23:22:46,544 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3279 states. [2024-11-27 23:22:46,763 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3279 to 3246. [2024-11-27 23:22:46,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3246 states, 3108 states have (on average 1.3574646074646075) internal successors, (4219), 3119 states have internal predecessors, (4219), 86 states have call successors, (86), 47 states have call predecessors, (86), 40 states have return successors, (93), 79 states have call predecessors, (93), 86 states have call successors, (93) [2024-11-27 23:22:46,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3246 states to 3246 states and 4398 transitions. [2024-11-27 23:22:46,779 INFO L78 Accepts]: Start accepts. Automaton has 3246 states and 4398 transitions. Word has length 166 [2024-11-27 23:22:46,780 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:22:46,780 INFO L471 AbstractCegarLoop]: Abstraction has 3246 states and 4398 transitions. [2024-11-27 23:22:46,780 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 47 states, 47 states have (on average 4.0212765957446805) internal successors, (189), 47 states have internal predecessors, (189), 3 states have call successors, (8), 2 states have call predecessors, (8), 7 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2024-11-27 23:22:46,780 INFO L276 IsEmpty]: Start isEmpty. Operand 3246 states and 4398 transitions. [2024-11-27 23:22:46,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2024-11-27 23:22:46,783 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:22:46,783 INFO L218 NwaCegarLoop]: trace histogram [41, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:22:46,807 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5606332f-f19f-4a99-963e-66d796cb8bdb/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2024-11-27 23:22:46,983 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5606332f-f19f-4a99-963e-66d796cb8bdb/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2024-11-27 23:22:46,984 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-27 23:22:46,984 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:22:46,985 INFO L85 PathProgramCache]: Analyzing trace with hash -591689546, now seen corresponding path program 2 times [2024-11-27 23:22:46,985 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:22:46,985 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [521612694] [2024-11-27 23:22:46,985 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-27 23:22:46,986 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:22:47,403 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-27 23:22:47,403 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 23:22:50,251 INFO L134 CoverageAnalysis]: Checked inductivity of 924 backedges. 8 proven. 755 refuted. 0 times theorem prover too weak. 161 trivial. 0 not checked. [2024-11-27 23:22:50,252 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:22:50,252 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [521612694] [2024-11-27 23:22:50,252 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [521612694] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:22:50,252 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1908527692] [2024-11-27 23:22:50,252 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-27 23:22:50,252 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:22:50,252 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5606332f-f19f-4a99-963e-66d796cb8bdb/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:22:50,254 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5606332f-f19f-4a99-963e-66d796cb8bdb/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:22:50,257 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5606332f-f19f-4a99-963e-66d796cb8bdb/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-11-27 23:22:53,832 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-27 23:22:53,832 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 23:22:53,851 INFO L256 TraceCheckSpWp]: Trace formula consists of 1421 conjuncts, 367 conjuncts are in the unsatisfiable core [2024-11-27 23:22:53,875 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:22:53,944 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-11-27 23:22:54,030 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 [2024-11-27 23:22:54,206 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-11-27 23:22:54,309 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2024-11-27 23:22:55,347 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2024-11-27 23:22:56,091 INFO L349 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2024-11-27 23:22:56,092 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 [2024-11-27 23:22:56,259 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-11-27 23:22:56,545 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 10 [2024-11-27 23:22:58,223 INFO L349 Elim1Store]: treesize reduction 19, result has 20.8 percent of original size [2024-11-27 23:22:58,223 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 34 treesize of output 33 [2024-11-27 23:22:58,423 INFO L349 Elim1Store]: treesize reduction 217, result has 0.5 percent of original size [2024-11-27 23:22:58,424 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 4 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 8 new quantified variables, introduced 9 case distinctions, treesize of input 1317 treesize of output 1123 [2024-11-27 23:22:58,487 INFO L349 Elim1Store]: treesize reduction 391, result has 0.3 percent of original size [2024-11-27 23:22:58,487 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 5 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 10 new quantified variables, introduced 12 case distinctions, treesize of input 2718 treesize of output 2237 [2024-11-27 23:22:58,538 INFO L349 Elim1Store]: treesize reduction 391, result has 0.3 percent of original size [2024-11-27 23:22:58,538 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 5 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 10 new quantified variables, introduced 12 case distinctions, treesize of input 2877 treesize of output 2368 [2024-11-27 23:22:58,587 INFO L349 Elim1Store]: treesize reduction 299, result has 0.3 percent of original size [2024-11-27 23:22:58,588 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 5 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 9 new quantified variables, introduced 11 case distinctions, treesize of input 2936 treesize of output 2351 [2024-11-27 23:22:58,636 INFO L349 Elim1Store]: treesize reduction 219, result has 0.5 percent of original size [2024-11-27 23:22:58,637 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 4 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 8 new quantified variables, introduced 8 case distinctions, treesize of input 2198 treesize of output 1804 [2024-11-27 23:22:58,676 INFO L349 Elim1Store]: treesize reduction 55, result has 8.3 percent of original size [2024-11-27 23:22:58,676 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 5 new quantified variables, introduced 3 case distinctions, treesize of input 1116 treesize of output 816 [2024-11-27 23:22:58,693 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 12 [2024-11-27 23:22:58,700 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 1 [2024-11-27 23:22:58,748 INFO L349 Elim1Store]: treesize reduction 299, result has 0.3 percent of original size [2024-11-27 23:22:58,749 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 5 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 9 new quantified variables, introduced 11 case distinctions, treesize of input 2495 treesize of output 2008 [2024-11-27 23:22:58,788 INFO L349 Elim1Store]: treesize reduction 219, result has 0.5 percent of original size [2024-11-27 23:22:58,789 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 4 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 8 new quantified variables, introduced 8 case distinctions, treesize of input 1887 treesize of output 1559 [2024-11-27 23:22:58,817 INFO L349 Elim1Store]: treesize reduction 59, result has 1.7 percent of original size [2024-11-27 23:22:58,818 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 5 new quantified variables, introduced 3 case distinctions, treesize of input 938 treesize of output 1 [2024-11-27 23:22:58,884 INFO L349 Elim1Store]: treesize reduction 391, result has 0.3 percent of original size [2024-11-27 23:22:58,885 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 5 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 10 new quantified variables, introduced 12 case distinctions, treesize of input 3189 treesize of output 2602 [2024-11-27 23:22:58,933 INFO L349 Elim1Store]: treesize reduction 391, result has 0.3 percent of original size [2024-11-27 23:22:58,934 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 5 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 10 new quantified variables, introduced 12 case distinctions, treesize of input 3030 treesize of output 2471 [2024-11-27 23:22:58,972 INFO L349 Elim1Store]: treesize reduction 217, result has 0.5 percent of original size [2024-11-27 23:22:58,972 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 4 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 8 new quantified variables, introduced 9 case distinctions, treesize of input 1452 treesize of output 1216 [2024-11-27 23:22:59,014 INFO L349 Elim1Store]: treesize reduction 219, result has 0.5 percent of original size [2024-11-27 23:22:59,015 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 4 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 8 new quantified variables, introduced 8 case distinctions, treesize of input 2129 treesize of output 1745 [2024-11-27 23:22:59,046 INFO L349 Elim1Store]: treesize reduction 299, result has 0.3 percent of original size [2024-11-27 23:22:59,047 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 5 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 9 new quantified variables, introduced 11 case distinctions, treesize of input 2867 treesize of output 2292 [2024-11-27 23:22:59,081 INFO L349 Elim1Store]: treesize reduction 59, result has 1.7 percent of original size [2024-11-27 23:22:59,082 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 5 new quantified variables, introduced 3 case distinctions, treesize of input 1047 treesize of output 1 [2024-11-27 23:22:59,121 INFO L349 Elim1Store]: treesize reduction 299, result has 0.3 percent of original size [2024-11-27 23:22:59,122 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 5 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 9 new quantified variables, introduced 11 case distinctions, treesize of input 2936 treesize of output 2351 [2024-11-27 23:22:59,155 INFO L349 Elim1Store]: treesize reduction 219, result has 0.5 percent of original size [2024-11-27 23:22:59,156 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 4 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 8 new quantified variables, introduced 8 case distinctions, treesize of input 2198 treesize of output 1804 [2024-11-27 23:22:59,181 INFO L349 Elim1Store]: treesize reduction 59, result has 1.7 percent of original size [2024-11-27 23:22:59,181 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 5 new quantified variables, introduced 3 case distinctions, treesize of input 1116 treesize of output 1 [2024-11-27 23:22:59,235 INFO L349 Elim1Store]: treesize reduction 391, result has 0.3 percent of original size [2024-11-27 23:22:59,236 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 5 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 10 new quantified variables, introduced 12 case distinctions, treesize of input 4110 treesize of output 3164 [2024-11-27 23:22:59,265 INFO L349 Elim1Store]: treesize reduction 217, result has 0.5 percent of original size [2024-11-27 23:22:59,265 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 4 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 8 new quantified variables, introduced 9 case distinctions, treesize of input 1577 treesize of output 1317 [2024-11-27 23:22:59,317 INFO L349 Elim1Store]: treesize reduction 391, result has 0.3 percent of original size [2024-11-27 23:22:59,318 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 5 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 10 new quantified variables, introduced 12 case distinctions, treesize of input 4439 treesize of output 3429 [2024-11-27 23:22:59,351 INFO L349 Elim1Store]: treesize reduction 59, result has 1.7 percent of original size [2024-11-27 23:22:59,352 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 5 new quantified variables, introduced 3 case distinctions, treesize of input 1360 treesize of output 991 [2024-11-27 23:22:59,391 INFO L349 Elim1Store]: treesize reduction 299, result has 0.3 percent of original size [2024-11-27 23:22:59,391 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 5 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 9 new quantified variables, introduced 11 case distinctions, treesize of input 3541 treesize of output 2810 [2024-11-27 23:22:59,439 INFO L349 Elim1Store]: treesize reduction 219, result has 0.5 percent of original size [2024-11-27 23:22:59,440 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 4 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 8 new quantified variables, introduced 8 case distinctions, treesize of input 2618 treesize of output 2126 [2024-11-27 23:22:59,474 INFO L349 Elim1Store]: treesize reduction 59, result has 1.7 percent of original size [2024-11-27 23:22:59,474 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 5 new quantified variables, introduced 3 case distinctions, treesize of input 1429 treesize of output 1050 [2024-11-27 23:22:59,516 INFO L349 Elim1Store]: treesize reduction 299, result has 0.3 percent of original size [2024-11-27 23:22:59,516 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 5 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 9 new quantified variables, introduced 11 case distinctions, treesize of input 3610 treesize of output 2869 [2024-11-27 23:22:59,566 INFO L349 Elim1Store]: treesize reduction 219, result has 0.5 percent of original size [2024-11-27 23:22:59,567 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 4 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 8 new quantified variables, introduced 8 case distinctions, treesize of input 2687 treesize of output 2185 [2024-11-27 23:22:59,685 INFO L349 Elim1Store]: treesize reduction 391, result has 0.3 percent of original size [2024-11-27 23:22:59,685 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 5 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 10 new quantified variables, introduced 12 case distinctions, treesize of input 4976 treesize of output 3836 [2024-11-27 23:22:59,735 INFO L349 Elim1Store]: treesize reduction 217, result has 0.5 percent of original size [2024-11-27 23:22:59,735 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 4 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 8 new quantified variables, introduced 9 case distinctions, treesize of input 1807 treesize of output 1485 [2024-11-27 23:22:59,785 INFO L349 Elim1Store]: treesize reduction 391, result has 0.3 percent of original size [2024-11-27 23:22:59,785 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 5 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 10 new quantified variables, introduced 12 case distinctions, treesize of input 4647 treesize of output 3571 [2024-11-27 23:22:59,856 INFO L349 Elim1Store]: treesize reduction 391, result has 0.3 percent of original size [2024-11-27 23:22:59,857 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 5 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 10 new quantified variables, introduced 12 case distinctions, treesize of input 4227 treesize of output 3247 [2024-11-27 23:22:59,900 INFO L349 Elim1Store]: treesize reduction 217, result has 0.5 percent of original size [2024-11-27 23:22:59,901 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 4 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 8 new quantified variables, introduced 9 case distinctions, treesize of input 1688 treesize of output 1394 [2024-11-27 23:22:59,956 INFO L349 Elim1Store]: treesize reduction 391, result has 0.3 percent of original size [2024-11-27 23:22:59,957 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 5 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 10 new quantified variables, introduced 12 case distinctions, treesize of input 4556 treesize of output 3512 [2024-11-27 23:23:00,001 INFO L349 Elim1Store]: treesize reduction 59, result has 1.7 percent of original size [2024-11-27 23:23:00,002 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 5 new quantified variables, introduced 3 case distinctions, treesize of input 1429 treesize of output 1050 [2024-11-27 23:23:00,041 INFO L349 Elim1Store]: treesize reduction 299, result has 0.3 percent of original size [2024-11-27 23:23:00,042 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 5 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 9 new quantified variables, introduced 11 case distinctions, treesize of input 3610 treesize of output 2869 [2024-11-27 23:23:00,088 INFO L349 Elim1Store]: treesize reduction 219, result has 0.5 percent of original size [2024-11-27 23:23:00,089 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 4 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 8 new quantified variables, introduced 8 case distinctions, treesize of input 2687 treesize of output 2185 [2024-11-27 23:23:00,149 INFO L349 Elim1Store]: treesize reduction 391, result has 0.3 percent of original size [2024-11-27 23:23:00,150 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 5 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 10 new quantified variables, introduced 12 case distinctions, treesize of input 4205 treesize of output 3239 [2024-11-27 23:23:00,196 INFO L349 Elim1Store]: treesize reduction 217, result has 0.5 percent of original size [2024-11-27 23:23:00,197 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 4 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 8 new quantified variables, introduced 9 case distinctions, treesize of input 1672 treesize of output 1392 [2024-11-27 23:23:00,247 INFO L349 Elim1Store]: treesize reduction 391, result has 0.3 percent of original size [2024-11-27 23:23:00,248 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 5 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 10 new quantified variables, introduced 12 case distinctions, treesize of input 4534 treesize of output 3504 [2024-11-27 23:23:00,298 INFO L349 Elim1Store]: treesize reduction 219, result has 0.5 percent of original size [2024-11-27 23:23:00,298 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 4 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 8 new quantified variables, introduced 8 case distinctions, treesize of input 2376 treesize of output 1940 [2024-11-27 23:23:00,340 INFO L349 Elim1Store]: treesize reduction 299, result has 0.3 percent of original size [2024-11-27 23:23:00,341 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 5 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 9 new quantified variables, introduced 11 case distinctions, treesize of input 3169 treesize of output 2526 [2024-11-27 23:23:00,369 INFO L349 Elim1Store]: treesize reduction 59, result has 1.7 percent of original size [2024-11-27 23:23:00,370 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 5 new quantified variables, introduced 3 case distinctions, treesize of input 1251 treesize of output 916 [2024-11-27 23:23:00,432 INFO L349 Elim1Store]: treesize reduction 391, result has 0.3 percent of original size [2024-11-27 23:23:00,433 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 5 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 10 new quantified variables, introduced 12 case distinctions, treesize of input 3423 treesize of output 2772 [2024-11-27 23:23:00,473 INFO L349 Elim1Store]: treesize reduction 391, result has 0.3 percent of original size [2024-11-27 23:23:00,474 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 5 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 10 new quantified variables, introduced 12 case distinctions, treesize of input 3582 treesize of output 2903 [2024-11-27 23:23:00,506 INFO L349 Elim1Store]: treesize reduction 217, result has 0.5 percent of original size [2024-11-27 23:23:00,507 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 4 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 8 new quantified variables, introduced 9 case distinctions, treesize of input 1668 treesize of output 1376 [2024-11-27 23:23:00,546 INFO L349 Elim1Store]: treesize reduction 299, result has 0.3 percent of original size [2024-11-27 23:23:00,546 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 5 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 9 new quantified variables, introduced 11 case distinctions, treesize of input 3312 treesize of output 2637 [2024-11-27 23:23:00,579 INFO L349 Elim1Store]: treesize reduction 219, result has 0.5 percent of original size [2024-11-27 23:23:00,579 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 4 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 8 new quantified variables, introduced 8 case distinctions, treesize of input 2444 treesize of output 1992 [2024-11-27 23:23:00,606 INFO L349 Elim1Store]: treesize reduction 59, result has 1.7 percent of original size [2024-11-27 23:23:00,607 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 5 new quantified variables, introduced 3 case distinctions, treesize of input 1229 treesize of output 1 [2024-11-27 23:23:00,628 INFO L349 Elim1Store]: treesize reduction 59, result has 1.7 percent of original size [2024-11-27 23:23:00,628 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 5 new quantified variables, introduced 3 case distinctions, treesize of input 1298 treesize of output 1 [2024-11-27 23:23:00,661 INFO L349 Elim1Store]: treesize reduction 299, result has 0.3 percent of original size [2024-11-27 23:23:00,662 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 5 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 9 new quantified variables, introduced 11 case distinctions, treesize of input 3381 treesize of output 2696 [2024-11-27 23:23:00,703 INFO L349 Elim1Store]: treesize reduction 219, result has 0.5 percent of original size [2024-11-27 23:23:00,704 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 4 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 8 new quantified variables, introduced 8 case distinctions, treesize of input 2513 treesize of output 2051 [2024-11-27 23:23:00,758 INFO L349 Elim1Store]: treesize reduction 391, result has 0.3 percent of original size [2024-11-27 23:23:00,759 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 5 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 10 new quantified variables, introduced 12 case distinctions, treesize of input 4633 treesize of output 3563 [2024-11-27 23:23:00,791 INFO L349 Elim1Store]: treesize reduction 217, result has 0.5 percent of original size [2024-11-27 23:23:00,793 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 4 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 8 new quantified variables, introduced 9 case distinctions, treesize of input 1793 treesize of output 1477 [2024-11-27 23:23:00,840 INFO L349 Elim1Store]: treesize reduction 391, result has 0.3 percent of original size [2024-11-27 23:23:00,841 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 5 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 10 new quantified variables, introduced 12 case distinctions, treesize of input 4962 treesize of output 3828 [2024-11-27 23:23:00,890 INFO L349 Elim1Store]: treesize reduction 391, result has 0.3 percent of original size [2024-11-27 23:23:00,890 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 5 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 10 new quantified variables, introduced 12 case distinctions, treesize of input 3270 treesize of output 2669 [2024-11-27 23:23:00,937 INFO L349 Elim1Store]: treesize reduction 391, result has 0.3 percent of original size [2024-11-27 23:23:00,938 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 5 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 10 new quantified variables, introduced 12 case distinctions, treesize of input 3111 treesize of output 2538 [2024-11-27 23:23:00,969 INFO L349 Elim1Store]: treesize reduction 217, result has 0.5 percent of original size [2024-11-27 23:23:00,970 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 4 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 8 new quantified variables, introduced 9 case distinctions, treesize of input 1533 treesize of output 1283 [2024-11-27 23:23:00,994 INFO L349 Elim1Store]: treesize reduction 59, result has 1.7 percent of original size [2024-11-27 23:23:00,995 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 5 new quantified variables, introduced 3 case distinctions, treesize of input 1120 treesize of output 1 [2024-11-27 23:23:01,032 INFO L349 Elim1Store]: treesize reduction 219, result has 0.5 percent of original size [2024-11-27 23:23:01,033 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 4 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 8 new quantified variables, introduced 8 case distinctions, treesize of input 2202 treesize of output 1806 [2024-11-27 23:23:01,068 INFO L349 Elim1Store]: treesize reduction 299, result has 0.3 percent of original size [2024-11-27 23:23:01,068 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 5 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 9 new quantified variables, introduced 11 case distinctions, treesize of input 2940 treesize of output 2353 [2024-11-27 23:23:01,104 INFO L349 Elim1Store]: treesize reduction 59, result has 1.7 percent of original size [2024-11-27 23:23:01,105 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 5 new quantified variables, introduced 3 case distinctions, treesize of input 1298 treesize of output 1 [2024-11-27 23:23:01,196 INFO L349 Elim1Store]: treesize reduction 299, result has 0.3 percent of original size [2024-11-27 23:23:01,197 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 5 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 9 new quantified variables, introduced 11 case distinctions, treesize of input 3381 treesize of output 2696 [2024-11-27 23:23:01,228 INFO L349 Elim1Store]: treesize reduction 219, result has 0.5 percent of original size [2024-11-27 23:23:01,228 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 4 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 8 new quantified variables, introduced 8 case distinctions, treesize of input 2513 treesize of output 2051 [2024-11-27 23:23:01,256 INFO L349 Elim1Store]: treesize reduction 59, result has 1.7 percent of original size [2024-11-27 23:23:01,256 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 5 new quantified variables, introduced 3 case distinctions, treesize of input 1189 treesize of output 1 [2024-11-27 23:23:01,289 INFO L349 Elim1Store]: treesize reduction 219, result has 0.5 percent of original size [2024-11-27 23:23:01,289 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 4 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 8 new quantified variables, introduced 8 case distinctions, treesize of input 2188 treesize of output 1786 [2024-11-27 23:23:01,315 INFO L349 Elim1Store]: treesize reduction 219, result has 0.5 percent of original size [2024-11-27 23:23:01,315 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 4 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 8 new quantified variables, introduced 8 case distinctions, treesize of input 2271 treesize of output 1865 [2024-11-27 23:23:01,343 INFO L349 Elim1Store]: treesize reduction 217, result has 0.5 percent of original size [2024-11-27 23:23:01,344 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 4 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 8 new quantified variables, introduced 9 case distinctions, treesize of input 1533 treesize of output 1283 [2024-11-27 23:23:01,385 INFO L349 Elim1Store]: treesize reduction 391, result has 0.3 percent of original size [2024-11-27 23:23:01,386 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 5 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 10 new quantified variables, introduced 12 case distinctions, treesize of input 3111 treesize of output 2538 [2024-11-27 23:23:01,419 INFO L349 Elim1Store]: treesize reduction 391, result has 0.3 percent of original size [2024-11-27 23:23:01,420 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 5 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 10 new quantified variables, introduced 12 case distinctions, treesize of input 3270 treesize of output 2669 [2024-11-27 23:23:01,445 INFO L349 Elim1Store]: treesize reduction 59, result has 1.7 percent of original size [2024-11-27 23:23:01,445 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 5 new quantified variables, introduced 3 case distinctions, treesize of input 1120 treesize of output 1 [2024-11-27 23:23:01,477 INFO L349 Elim1Store]: treesize reduction 219, result has 0.5 percent of original size [2024-11-27 23:23:01,477 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 4 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 8 new quantified variables, introduced 8 case distinctions, treesize of input 2202 treesize of output 1806 [2024-11-27 23:23:01,506 INFO L349 Elim1Store]: treesize reduction 219, result has 0.5 percent of original size [2024-11-27 23:23:01,507 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 4 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 8 new quantified variables, introduced 8 case distinctions, treesize of input 2119 treesize of output 1727 [2024-11-27 23:23:01,544 INFO L349 Elim1Store]: treesize reduction 217, result has 0.5 percent of original size [2024-11-27 23:23:01,545 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 4 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 8 new quantified variables, introduced 9 case distinctions, treesize of input 1658 treesize of output 1384 [2024-11-27 23:23:01,588 INFO L349 Elim1Store]: treesize reduction 391, result has 0.3 percent of original size [2024-11-27 23:23:01,589 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 5 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 10 new quantified variables, introduced 12 case distinctions, treesize of input 3292 treesize of output 2679 [2024-11-27 23:23:01,632 INFO L349 Elim1Store]: treesize reduction 391, result has 0.3 percent of original size [2024-11-27 23:23:01,632 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 5 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 10 new quantified variables, introduced 12 case distinctions, treesize of input 3438 treesize of output 2801 [2024-11-27 23:23:01,663 INFO L349 Elim1Store]: treesize reduction 59, result has 1.7 percent of original size [2024-11-27 23:23:01,663 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 5 new quantified variables, introduced 3 case distinctions, treesize of input 1407 treesize of output 1 [2024-11-27 23:23:01,695 INFO L349 Elim1Store]: treesize reduction 219, result has 0.5 percent of original size [2024-11-27 23:23:01,696 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 4 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 8 new quantified variables, introduced 8 case distinctions, treesize of input 1877 treesize of output 1541 [2024-11-27 23:23:01,729 INFO L349 Elim1Store]: treesize reduction 219, result has 0.5 percent of original size [2024-11-27 23:23:01,730 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 4 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 8 new quantified variables, introduced 8 case distinctions, treesize of input 1960 treesize of output 1620 [2024-11-27 23:23:01,751 INFO L349 Elim1Store]: treesize reduction 59, result has 1.7 percent of original size [2024-11-27 23:23:01,752 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 5 new quantified variables, introduced 3 case distinctions, treesize of input 1189 treesize of output 1 [2024-11-27 23:23:01,785 INFO L349 Elim1Store]: treesize reduction 219, result has 0.5 percent of original size [2024-11-27 23:23:01,785 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 4 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 8 new quantified variables, introduced 8 case distinctions, treesize of input 2188 treesize of output 1786 [2024-11-27 23:23:01,824 INFO L349 Elim1Store]: treesize reduction 219, result has 0.5 percent of original size [2024-11-27 23:23:01,825 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 4 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 8 new quantified variables, introduced 8 case distinctions, treesize of input 2271 treesize of output 1865 [2024-11-27 23:23:01,861 INFO L349 Elim1Store]: treesize reduction 217, result has 0.5 percent of original size [2024-11-27 23:23:01,862 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 4 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 8 new quantified variables, introduced 9 case distinctions, treesize of input 1398 treesize of output 1190 [2024-11-27 23:23:01,912 INFO L349 Elim1Store]: treesize reduction 391, result has 0.3 percent of original size [2024-11-27 23:23:01,913 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 5 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 10 new quantified variables, introduced 12 case distinctions, treesize of input 2799 treesize of output 2304 [2024-11-27 23:23:01,957 INFO L349 Elim1Store]: treesize reduction 391, result has 0.3 percent of original size [2024-11-27 23:23:01,957 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 5 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 10 new quantified variables, introduced 12 case distinctions, treesize of input 2958 treesize of output 2435 [2024-11-27 23:23:02,097 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2024-11-27 23:23:10,474 INFO L349 Elim1Store]: treesize reduction 8, result has 61.9 percent of original size [2024-11-27 23:23:10,475 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 20 treesize of output 22 [2024-11-27 23:23:10,689 INFO L349 Elim1Store]: treesize reduction 167, result has 0.6 percent of original size [2024-11-27 23:23:10,689 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 6 new quantified variables, introduced 4 case distinctions, treesize of input 504 treesize of output 358 [2024-11-27 23:23:10,709 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-27 23:23:10,953 INFO L349 Elim1Store]: treesize reduction 507, result has 11.8 percent of original size [2024-11-27 23:23:10,954 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 7 new quantified variables, introduced 7 case distinctions, treesize of input 690 treesize of output 500 [2024-11-27 23:23:11,072 INFO L349 Elim1Store]: treesize reduction 152, result has 18.3 percent of original size [2024-11-27 23:23:11,072 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 6 new quantified variables, introduced 10 case distinctions, treesize of input 399 treesize of output 346 [2024-11-27 23:23:11,083 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-27 23:23:11,101 INFO L349 Elim1Store]: treesize reduction 31, result has 26.2 percent of original size [2024-11-27 23:23:11,102 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 238 treesize of output 191 [2024-11-27 23:23:11,138 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 21 treesize of output 15 [2024-11-27 23:23:11,156 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 33 treesize of output 25 [2024-11-27 23:23:11,220 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 23:23:11,220 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 80 treesize of output 82 [2024-11-27 23:23:11,241 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-27 23:23:11,241 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 96 treesize of output 86 [2024-11-27 23:25:03,274 WARN L286 SmtUtils]: Spent 7.06s on a formula simplification. DAG size of input: 572 DAG size of output: 214 (called from [L 346] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2024-11-27 23:25:03,274 INFO L349 Elim1Store]: treesize reduction 13356, result has 5.4 percent of original size [2024-11-27 23:25:03,275 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 13 select indices, 13 select index equivalence classes, 136 disjoint index pairs (out of 78 index pairs), introduced 15 new quantified variables, introduced 90 case distinctions, treesize of input 435 treesize of output 1011 [2024-11-27 23:25:03,658 INFO L349 Elim1Store]: treesize reduction 2108, result has 0.9 percent of original size [2024-11-27 23:25:03,659 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 137 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 1688 treesize of output 1364 [2024-11-27 23:25:34,601 INFO L349 Elim1Store]: treesize reduction 1162, result has 10.6 percent of original size [2024-11-27 23:25:34,602 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 20 select indices, 20 select index equivalence classes, 136 disjoint index pairs (out of 190 index pairs), introduced 22 new quantified variables, introduced 209 case distinctions, treesize of input 784 treesize of output 390 [2024-11-27 23:25:35,043 INFO L349 Elim1Store]: treesize reduction 1024, result has 11.3 percent of original size [2024-11-27 23:25:35,044 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 20 select indices, 20 select index equivalence classes, 137 disjoint index pairs (out of 190 index pairs), introduced 22 new quantified variables, introduced 205 case distinctions, treesize of input 737 treesize of output 515 [2024-11-27 23:25:41,456 INFO L349 Elim1Store]: treesize reduction 94, result has 5.1 percent of original size [2024-11-27 23:25:41,456 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 871 treesize of output 445 [2024-11-27 23:25:41,513 INFO L349 Elim1Store]: treesize reduction 9, result has 10.0 percent of original size [2024-11-27 23:25:41,514 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 422 treesize of output 307 [2024-11-27 23:25:41,545 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 17 select indices, 17 select index equivalence classes, 136 disjoint index pairs (out of 136 index pairs), introduced 17 new quantified variables, introduced 0 case distinctions, treesize of input 94 treesize of output 132 [2024-11-27 23:25:41,606 INFO L349 Elim1Store]: treesize reduction 277, result has 3.1 percent of original size [2024-11-27 23:25:41,606 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 19 select indices, 19 select index equivalence classes, 137 disjoint index pairs (out of 171 index pairs), introduced 22 new quantified variables, introduced 171 case distinctions, treesize of input 298 treesize of output 229 [2024-11-27 23:25:41,633 INFO L349 Elim1Store]: treesize reduction 35, result has 12.5 percent of original size [2024-11-27 23:25:41,633 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 265 treesize of output 136 [2024-11-27 23:25:43,134 INFO L134 CoverageAnalysis]: Checked inductivity of 924 backedges. 12 proven. 659 refuted. 0 times theorem prover too weak. 253 trivial. 0 not checked. [2024-11-27 23:25:43,134 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 23:32:28,156 WARN L286 SmtUtils]: Spent 6.22m on a formula simplification. DAG size of input: 392 DAG size of output: 388 (called from [L 276] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2024-11-27 23:34:12,109 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1908527692] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:34:12,109 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-27 23:34:12,109 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [29, 53] total 81 [2024-11-27 23:34:12,109 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2145405874] [2024-11-27 23:34:12,109 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-27 23:34:12,110 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 81 states [2024-11-27 23:34:12,110 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:34:12,111 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 81 interpolants. [2024-11-27 23:34:12,113 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=487, Invalid=7838, Unknown=47, NotChecked=0, Total=8372 [2024-11-27 23:34:12,113 INFO L87 Difference]: Start difference. First operand 3246 states and 4398 transitions. Second operand has 81 states, 78 states have (on average 3.5256410256410255) internal successors, (275), 76 states have internal predecessors, (275), 7 states have call successors, (10), 6 states have call predecessors, (10), 7 states have return successors, (10), 7 states have call predecessors, (10), 7 states have call successors, (10) [2024-11-27 23:34:54,845 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-27 23:34:58,801 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-27 23:35:00,762 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.13s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-27 23:35:05,709 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-27 23:35:12,313 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-27 23:35:16,882 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-27 23:35:18,711 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-27 23:35:20,526 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-27 23:35:22,504 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.29s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-27 23:35:27,862 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-27 23:35:42,973 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.46s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-27 23:35:52,148 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.71s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0]