./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/busybox-1.22.0/rm-2.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67d62541-d915-40fd-b4cd-67bee98c5964/bin/utaipan-verify-nQ1chXbOIh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67d62541-d915-40fd-b4cd-67bee98c5964/bin/utaipan-verify-nQ1chXbOIh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67d62541-d915-40fd-b4cd-67bee98c5964/bin/utaipan-verify-nQ1chXbOIh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67d62541-d915-40fd-b4cd-67bee98c5964/bin/utaipan-verify-nQ1chXbOIh/config/TaipanReach.xml -i ../../sv-benchmarks/c/busybox-1.22.0/rm-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67d62541-d915-40fd-b4cd-67bee98c5964/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Overflow-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67d62541-d915-40fd-b4cd-67bee98c5964/bin/utaipan-verify-nQ1chXbOIh --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 Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 98b8c9945e108e03ae0147f47aa3594ac134e1706a3b8ed0d0bfef5164076027 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 17:52:08,172 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 17:52:08,240 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67d62541-d915-40fd-b4cd-67bee98c5964/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Overflow-64bit-Taipan_Default.epf [2023-12-02 17:52:08,245 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-02 17:52:08,245 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-02 17:52:08,271 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 17:52:08,272 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-02 17:52:08,273 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-02 17:52:08,274 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-02 17:52:08,274 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-02 17:52:08,275 INFO L153 SettingsManager]: * User list type=DISABLED [2023-12-02 17:52:08,275 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-12-02 17:52:08,276 INFO L153 SettingsManager]: * Explicit value domain=true [2023-12-02 17:52:08,276 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-12-02 17:52:08,277 INFO L153 SettingsManager]: * Octagon Domain=false [2023-12-02 17:52:08,277 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-12-02 17:52:08,278 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-12-02 17:52:08,278 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-12-02 17:52:08,279 INFO L153 SettingsManager]: * Interval Domain=false [2023-12-02 17:52:08,279 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-12-02 17:52:08,280 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-12-02 17:52:08,281 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-12-02 17:52:08,282 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 17:52:08,282 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 17:52:08,283 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-02 17:52:08,283 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 17:52:08,283 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 17:52:08,284 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 17:52:08,284 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 17:52:08,285 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-12-02 17:52:08,285 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-12-02 17:52:08,286 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 17:52:08,286 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 17:52:08,286 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 17:52:08,286 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-02 17:52:08,287 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-02 17:52:08,287 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 17:52:08,287 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 17:52:08,287 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 17:52:08,288 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-02 17:52:08,288 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-12-02 17:52:08,288 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-02 17:52:08,289 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-02 17:52:08,289 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-02 17:52:08,289 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-12-02 17:52:08,289 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-02 17:52:08,289 INFO L153 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67d62541-d915-40fd-b4cd-67bee98c5964/bin/utaipan-verify-nQ1chXbOIh/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67d62541-d915-40fd-b4cd-67bee98c5964/bin/utaipan-verify-nQ1chXbOIh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 98b8c9945e108e03ae0147f47aa3594ac134e1706a3b8ed0d0bfef5164076027 [2023-12-02 17:52:08,509 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 17:52:08,529 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 17:52:08,531 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 17:52:08,532 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 17:52:08,533 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 17:52:08,534 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67d62541-d915-40fd-b4cd-67bee98c5964/bin/utaipan-verify-nQ1chXbOIh/../../sv-benchmarks/c/busybox-1.22.0/rm-2.i [2023-12-02 17:52:11,319 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 17:52:11,663 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 17:52:11,663 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67d62541-d915-40fd-b4cd-67bee98c5964/sv-benchmarks/c/busybox-1.22.0/rm-2.i [2023-12-02 17:52:11,689 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67d62541-d915-40fd-b4cd-67bee98c5964/bin/utaipan-verify-nQ1chXbOIh/data/c46339a2d/cdc4ffa2d3e443169223068c4689acfb/FLAG863544264 [2023-12-02 17:52:11,701 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67d62541-d915-40fd-b4cd-67bee98c5964/bin/utaipan-verify-nQ1chXbOIh/data/c46339a2d/cdc4ffa2d3e443169223068c4689acfb [2023-12-02 17:52:11,704 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 17:52:11,705 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 17:52:11,706 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 17:52:11,706 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 17:52:11,710 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 17:52:11,711 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 05:52:11" (1/1) ... [2023-12-02 17:52:11,712 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5c76f67d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:52:11, skipping insertion in model container [2023-12-02 17:52:11,712 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 05:52:11" (1/1) ... [2023-12-02 17:52:11,798 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 17:52:13,221 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 17:52:13,246 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 17:52:13,390 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 17:52:13,595 WARN L675 CHandler]: The function fflush is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 17:52:13,595 WARN L675 CHandler]: The function strerror is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 17:52:13,595 WARN L675 CHandler]: The function strrchr is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 17:52:13,595 WARN L675 CHandler]: The function strtoul is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 17:52:13,596 WARN L675 CHandler]: The function fprintf is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 17:52:13,604 INFO L206 MainTranslator]: Completed translation [2023-12-02 17:52:13,604 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:52:13 WrapperNode [2023-12-02 17:52:13,605 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 17:52:13,606 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 17:52:13,606 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 17:52:13,606 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 17:52:13,615 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:52:13" (1/1) ... [2023-12-02 17:52:13,671 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:52:13" (1/1) ... [2023-12-02 17:52:13,760 INFO L138 Inliner]: procedures = 665, calls = 522, calls flagged for inlining = 33, calls inlined = 32, statements flattened = 2284 [2023-12-02 17:52:13,761 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 17:52:13,761 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 17:52:13,761 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 17:52:13,762 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 17:52:13,772 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:52:13" (1/1) ... [2023-12-02 17:52:13,772 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:52:13" (1/1) ... [2023-12-02 17:52:13,785 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:52:13" (1/1) ... [2023-12-02 17:52:13,786 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:52:13" (1/1) ... [2023-12-02 17:52:13,838 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:52:13" (1/1) ... [2023-12-02 17:52:13,855 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:52:13" (1/1) ... [2023-12-02 17:52:13,872 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:52:13" (1/1) ... [2023-12-02 17:52:13,887 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:52:13" (1/1) ... [2023-12-02 17:52:13,918 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 17:52:13,919 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 17:52:13,919 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 17:52:13,919 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 17:52:13,920 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:52:13" (1/1) ... [2023-12-02 17:52:13,928 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 17:52:13,942 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67d62541-d915-40fd-b4cd-67bee98c5964/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 17:52:13,957 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67d62541-d915-40fd-b4cd-67bee98c5964/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-12-02 17:52:13,960 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67d62541-d915-40fd-b4cd-67bee98c5964/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-12-02 17:52:13,997 INFO L130 BoogieDeclarations]: Found specification of procedure last_char_is [2023-12-02 17:52:13,998 INFO L138 BoogieDeclarations]: Found implementation of procedure last_char_is [2023-12-02 17:52:13,998 INFO L130 BoogieDeclarations]: Found specification of procedure vasprintf [2023-12-02 17:52:13,998 INFO L138 BoogieDeclarations]: Found implementation of procedure vasprintf [2023-12-02 17:52:13,998 INFO L130 BoogieDeclarations]: Found specification of procedure strerror [2023-12-02 17:52:13,998 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-12-02 17:52:13,999 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2023-12-02 17:52:13,999 INFO L130 BoogieDeclarations]: Found specification of procedure bb_verror_msg [2023-12-02 17:52:13,999 INFO L138 BoogieDeclarations]: Found implementation of procedure bb_verror_msg [2023-12-02 17:52:13,999 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-12-02 17:52:14,000 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-12-02 17:52:14,000 INFO L130 BoogieDeclarations]: Found specification of procedure bb_ask_confirmation [2023-12-02 17:52:14,000 INFO L138 BoogieDeclarations]: Found implementation of procedure bb_ask_confirmation [2023-12-02 17:52:14,000 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-12-02 17:52:14,001 INFO L130 BoogieDeclarations]: Found specification of procedure fflush [2023-12-02 17:52:14,001 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 17:52:14,001 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-12-02 17:52:14,001 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 17:52:14,002 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 17:52:14,002 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy [2023-12-02 17:52:14,002 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy [2023-12-02 17:52:14,002 INFO L130 BoogieDeclarations]: Found specification of procedure xmalloc [2023-12-02 17:52:14,002 INFO L138 BoogieDeclarations]: Found implementation of procedure xmalloc [2023-12-02 17:52:14,003 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2023-12-02 17:52:14,003 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-12-02 17:52:14,003 INFO L130 BoogieDeclarations]: Found specification of procedure remove_file [2023-12-02 17:52:14,003 INFO L138 BoogieDeclarations]: Found implementation of procedure remove_file [2023-12-02 17:52:14,003 INFO L130 BoogieDeclarations]: Found specification of procedure access [2023-12-02 17:52:14,003 INFO L138 BoogieDeclarations]: Found implementation of procedure access [2023-12-02 17:52:14,004 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2023-12-02 17:52:14,004 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2023-12-02 17:52:14,004 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-02 17:52:14,004 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-02 17:52:14,004 INFO L130 BoogieDeclarations]: Found specification of procedure fprintf [2023-12-02 17:52:14,004 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-12-02 17:52:14,005 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-12-02 17:52:14,005 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-12-02 17:52:14,005 INFO L130 BoogieDeclarations]: Found specification of procedure bb_show_usage [2023-12-02 17:52:14,005 INFO L138 BoogieDeclarations]: Found implementation of procedure bb_show_usage [2023-12-02 17:52:14,005 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-12-02 17:52:14,005 INFO L130 BoogieDeclarations]: Found specification of procedure bb_perror_msg [2023-12-02 17:52:14,005 INFO L138 BoogieDeclarations]: Found implementation of procedure bb_perror_msg [2023-12-02 17:52:14,005 INFO L130 BoogieDeclarations]: Found specification of procedure strrchr [2023-12-02 17:52:14,006 INFO L130 BoogieDeclarations]: Found specification of procedure isatty [2023-12-02 17:52:14,006 INFO L138 BoogieDeclarations]: Found implementation of procedure isatty [2023-12-02 17:52:14,006 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2023-12-02 17:52:14,006 INFO L130 BoogieDeclarations]: Found specification of procedure bb_error_msg_and_die [2023-12-02 17:52:14,006 INFO L138 BoogieDeclarations]: Found implementation of procedure bb_error_msg_and_die [2023-12-02 17:52:14,006 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-02 17:52:14,006 INFO L130 BoogieDeclarations]: Found specification of procedure bb_error_msg [2023-12-02 17:52:14,007 INFO L138 BoogieDeclarations]: Found implementation of procedure bb_error_msg [2023-12-02 17:52:14,453 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 17:52:14,455 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 17:52:16,535 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 17:52:17,262 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 17:52:17,263 INFO L309 CfgBuilder]: Removed 31 assume(true) statements. [2023-12-02 17:52:17,264 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 05:52:17 BoogieIcfgContainer [2023-12-02 17:52:17,265 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 17:52:17,267 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-02 17:52:17,267 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-02 17:52:17,270 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-02 17:52:17,271 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 05:52:11" (1/3) ... [2023-12-02 17:52:17,271 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b1c7b6c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 05:52:17, skipping insertion in model container [2023-12-02 17:52:17,271 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:52:13" (2/3) ... [2023-12-02 17:52:17,272 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b1c7b6c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 05:52:17, skipping insertion in model container [2023-12-02 17:52:17,272 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 05:52:17" (3/3) ... [2023-12-02 17:52:17,273 INFO L112 eAbstractionObserver]: Analyzing ICFG rm-2.i [2023-12-02 17:52:17,292 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-02 17:52:17,292 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 70 error locations. [2023-12-02 17:52:17,352 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-02 17:52:17,359 INFO L357 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, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, 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;@51af6ab2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-02 17:52:17,359 INFO L358 AbstractCegarLoop]: Starting to check reachability of 70 error locations. [2023-12-02 17:52:17,366 INFO L276 IsEmpty]: Start isEmpty. Operand has 527 states, 389 states have (on average 1.6401028277634961) internal successors, (638), 461 states have internal predecessors, (638), 52 states have call successors, (52), 15 states have call predecessors, (52), 15 states have return successors, (52), 52 states have call predecessors, (52), 52 states have call successors, (52) [2023-12-02 17:52:17,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2023-12-02 17:52:17,373 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 17:52:17,373 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2023-12-02 17:52:17,374 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [vasprintfErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, vasprintfErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, remove_fileErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 67 more)] === [2023-12-02 17:52:17,379 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 17:52:17,379 INFO L85 PathProgramCache]: Analyzing trace with hash 2224563, now seen corresponding path program 1 times [2023-12-02 17:52:17,389 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 17:52:17,389 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1996356114] [2023-12-02 17:52:17,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 17:52:17,390 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 17:52:17,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 17:52:17,763 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 17:52:17,764 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 17:52:17,764 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1996356114] [2023-12-02 17:52:17,765 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1996356114] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 17:52:17,765 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 17:52:17,766 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-12-02 17:52:17,767 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2015862903] [2023-12-02 17:52:17,768 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 17:52:17,773 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 17:52:17,774 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 17:52:17,807 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 17:52:17,808 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 17:52:17,812 INFO L87 Difference]: Start difference. First operand has 527 states, 389 states have (on average 1.6401028277634961) internal successors, (638), 461 states have internal predecessors, (638), 52 states have call successors, (52), 15 states have call predecessors, (52), 15 states have return successors, (52), 52 states have call predecessors, (52), 52 states have call successors, (52) Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 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) [2023-12-02 17:52:18,267 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 17:52:18,267 INFO L93 Difference]: Finished difference Result 1047 states and 1499 transitions. [2023-12-02 17:52:18,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 17:52:18,270 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 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 3 [2023-12-02 17:52:18,270 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 17:52:18,285 INFO L225 Difference]: With dead ends: 1047 [2023-12-02 17:52:18,285 INFO L226 Difference]: Without dead ends: 522 [2023-12-02 17:52:18,293 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 17:52:18,296 INFO L413 NwaCegarLoop]: 615 mSDtfsCounter, 1 mSDsluCounter, 613 mSDsCounter, 0 mSdLazyCounter, 177 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 1228 SdHoareTripleChecker+Invalid, 181 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 177 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-02 17:52:18,297 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 1228 Invalid, 181 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 177 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-02 17:52:18,318 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 522 states. [2023-12-02 17:52:18,372 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 522 to 522. [2023-12-02 17:52:18,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 522 states, 386 states have (on average 1.5699481865284974) internal successors, (606), 462 states have internal predecessors, (606), 52 states have call successors, (52), 15 states have call predecessors, (52), 14 states have return successors, (46), 46 states have call predecessors, (46), 46 states have call successors, (46) [2023-12-02 17:52:18,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 522 states to 522 states and 704 transitions. [2023-12-02 17:52:18,382 INFO L78 Accepts]: Start accepts. Automaton has 522 states and 704 transitions. Word has length 3 [2023-12-02 17:52:18,382 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 17:52:18,382 INFO L495 AbstractCegarLoop]: Abstraction has 522 states and 704 transitions. [2023-12-02 17:52:18,383 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 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) [2023-12-02 17:52:18,383 INFO L276 IsEmpty]: Start isEmpty. Operand 522 states and 704 transitions. [2023-12-02 17:52:18,383 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-12-02 17:52:18,384 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 17:52:18,384 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1] [2023-12-02 17:52:18,384 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-02 17:52:18,385 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [vasprintfErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, vasprintfErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, remove_fileErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 67 more)] === [2023-12-02 17:52:18,385 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 17:52:18,385 INFO L85 PathProgramCache]: Analyzing trace with hash 1848252059, now seen corresponding path program 1 times [2023-12-02 17:52:18,386 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 17:52:18,386 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2055301608] [2023-12-02 17:52:18,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 17:52:18,387 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 17:52:18,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 17:52:18,561 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 17:52:18,561 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 17:52:18,562 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2055301608] [2023-12-02 17:52:18,562 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2055301608] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 17:52:18,562 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2060437404] [2023-12-02 17:52:18,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 17:52:18,563 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 17:52:18,563 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67d62541-d915-40fd-b4cd-67bee98c5964/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 17:52:18,569 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67d62541-d915-40fd-b4cd-67bee98c5964/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 17:52:18,572 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67d62541-d915-40fd-b4cd-67bee98c5964/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-12-02 17:52:18,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 17:52:18,885 INFO L262 TraceCheckSpWp]: Trace formula consists of 359 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-02 17:52:18,889 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 17:52:18,921 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 17:52:18,922 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 17:52:18,922 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2060437404] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 17:52:18,922 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-02 17:52:18,922 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 3 [2023-12-02 17:52:18,923 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1380562051] [2023-12-02 17:52:18,923 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 17:52:18,924 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-02 17:52:18,924 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 17:52:18,925 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-02 17:52:18,925 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-02 17:52:18,925 INFO L87 Difference]: Start difference. First operand 522 states and 704 transitions. Second operand has 4 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 17:52:19,246 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 17:52:19,246 INFO L93 Difference]: Finished difference Result 522 states and 704 transitions. [2023-12-02 17:52:19,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-02 17:52:19,247 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2023-12-02 17:52:19,247 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 17:52:19,251 INFO L225 Difference]: With dead ends: 522 [2023-12-02 17:52:19,251 INFO L226 Difference]: Without dead ends: 521 [2023-12-02 17:52:19,252 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-02 17:52:19,253 INFO L413 NwaCegarLoop]: 612 mSDtfsCounter, 3 mSDsluCounter, 612 mSDsCounter, 0 mSdLazyCounter, 177 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 1224 SdHoareTripleChecker+Invalid, 177 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 177 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-02 17:52:19,254 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 1224 Invalid, 177 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 177 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-02 17:52:19,256 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 521 states. [2023-12-02 17:52:19,274 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 521 to 521. [2023-12-02 17:52:19,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 521 states, 386 states have (on average 1.567357512953368) internal successors, (605), 461 states have internal predecessors, (605), 52 states have call successors, (52), 15 states have call predecessors, (52), 14 states have return successors, (46), 46 states have call predecessors, (46), 46 states have call successors, (46) [2023-12-02 17:52:19,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 521 states to 521 states and 703 transitions. [2023-12-02 17:52:19,279 INFO L78 Accepts]: Start accepts. Automaton has 521 states and 703 transitions. Word has length 6 [2023-12-02 17:52:19,279 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 17:52:19,280 INFO L495 AbstractCegarLoop]: Abstraction has 521 states and 703 transitions. [2023-12-02 17:52:19,280 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 17:52:19,280 INFO L276 IsEmpty]: Start isEmpty. Operand 521 states and 703 transitions. [2023-12-02 17:52:19,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-12-02 17:52:19,280 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 17:52:19,280 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1] [2023-12-02 17:52:19,288 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67d62541-d915-40fd-b4cd-67bee98c5964/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-12-02 17:52:19,481 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67d62541-d915-40fd-b4cd-67bee98c5964/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 17:52:19,481 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [vasprintfErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, vasprintfErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, remove_fileErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 67 more)] === [2023-12-02 17:52:19,482 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 17:52:19,482 INFO L85 PathProgramCache]: Analyzing trace with hash 1461239792, now seen corresponding path program 1 times [2023-12-02 17:52:19,482 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 17:52:19,482 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1562840290] [2023-12-02 17:52:19,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 17:52:19,483 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 17:52:19,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 17:52:19,582 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-12-02 17:52:19,582 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 17:52:19,582 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1562840290] [2023-12-02 17:52:19,582 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1562840290] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 17:52:19,582 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 17:52:19,583 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-02 17:52:19,583 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [285838412] [2023-12-02 17:52:19,583 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 17:52:19,583 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 17:52:19,583 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 17:52:19,584 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 17:52:19,584 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 17:52:19,584 INFO L87 Difference]: Start difference. First operand 521 states and 703 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 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) [2023-12-02 17:52:19,849 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 17:52:19,849 INFO L93 Difference]: Finished difference Result 521 states and 703 transitions. [2023-12-02 17:52:19,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 17:52:19,850 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 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 7 [2023-12-02 17:52:19,850 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 17:52:19,854 INFO L225 Difference]: With dead ends: 521 [2023-12-02 17:52:19,854 INFO L226 Difference]: Without dead ends: 520 [2023-12-02 17:52:19,855 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 17:52:19,856 INFO L413 NwaCegarLoop]: 612 mSDtfsCounter, 0 mSDsluCounter, 612 mSDsCounter, 0 mSdLazyCounter, 171 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1224 SdHoareTripleChecker+Invalid, 172 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 171 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-02 17:52:19,856 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1224 Invalid, 172 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 171 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-02 17:52:19,858 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 520 states. [2023-12-02 17:52:19,869 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 520 to 518. [2023-12-02 17:52:19,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 518 states, 384 states have (on average 1.5677083333333333) internal successors, (602), 458 states have internal predecessors, (602), 52 states have call successors, (52), 15 states have call predecessors, (52), 14 states have return successors, (46), 46 states have call predecessors, (46), 46 states have call successors, (46) [2023-12-02 17:52:19,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 518 states to 518 states and 700 transitions. [2023-12-02 17:52:19,873 INFO L78 Accepts]: Start accepts. Automaton has 518 states and 700 transitions. Word has length 7 [2023-12-02 17:52:19,873 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 17:52:19,873 INFO L495 AbstractCegarLoop]: Abstraction has 518 states and 700 transitions. [2023-12-02 17:52:19,873 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 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) [2023-12-02 17:52:19,874 INFO L276 IsEmpty]: Start isEmpty. Operand 518 states and 700 transitions. [2023-12-02 17:52:19,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-12-02 17:52:19,874 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 17:52:19,874 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 17:52:19,874 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-02 17:52:19,875 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [vasprintfErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, vasprintfErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, remove_fileErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 67 more)] === [2023-12-02 17:52:19,875 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 17:52:19,875 INFO L85 PathProgramCache]: Analyzing trace with hash 1231065310, now seen corresponding path program 1 times [2023-12-02 17:52:19,875 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 17:52:19,876 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1711016694] [2023-12-02 17:52:19,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 17:52:19,876 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 17:52:19,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 17:52:19,992 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 17:52:19,992 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 17:52:19,993 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1711016694] [2023-12-02 17:52:19,993 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1711016694] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 17:52:19,993 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [764437279] [2023-12-02 17:52:19,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 17:52:19,993 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 17:52:19,993 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67d62541-d915-40fd-b4cd-67bee98c5964/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 17:52:19,996 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67d62541-d915-40fd-b4cd-67bee98c5964/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 17:52:20,012 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67d62541-d915-40fd-b4cd-67bee98c5964/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-12-02 17:52:20,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 17:52:20,310 INFO L262 TraceCheckSpWp]: Trace formula consists of 375 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-02 17:52:20,312 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 17:52:20,324 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-12-02 17:52:20,325 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 17:52:20,325 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [764437279] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 17:52:20,325 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-02 17:52:20,325 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2023-12-02 17:52:20,325 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1735650145] [2023-12-02 17:52:20,325 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 17:52:20,326 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 17:52:20,326 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 17:52:20,327 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 17:52:20,327 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-02 17:52:20,327 INFO L87 Difference]: Start difference. First operand 518 states and 700 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-12-02 17:52:20,625 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 17:52:20,626 INFO L93 Difference]: Finished difference Result 518 states and 700 transitions. [2023-12-02 17:52:20,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 17:52:20,626 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 9 [2023-12-02 17:52:20,626 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 17:52:20,630 INFO L225 Difference]: With dead ends: 518 [2023-12-02 17:52:20,630 INFO L226 Difference]: Without dead ends: 516 [2023-12-02 17:52:20,630 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-02 17:52:20,631 INFO L413 NwaCegarLoop]: 605 mSDtfsCounter, 320 mSDsluCounter, 325 mSDsCounter, 0 mSdLazyCounter, 130 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 332 SdHoareTripleChecker+Valid, 930 SdHoareTripleChecker+Invalid, 131 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 130 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-02 17:52:20,632 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [332 Valid, 930 Invalid, 131 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 130 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-02 17:52:20,634 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 516 states. [2023-12-02 17:52:20,648 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 516 to 516. [2023-12-02 17:52:20,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 516 states, 384 states have (on average 1.5625) internal successors, (600), 456 states have internal predecessors, (600), 52 states have call successors, (52), 15 states have call predecessors, (52), 14 states have return successors, (46), 46 states have call predecessors, (46), 46 states have call successors, (46) [2023-12-02 17:52:20,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 516 states to 516 states and 698 transitions. [2023-12-02 17:52:20,652 INFO L78 Accepts]: Start accepts. Automaton has 516 states and 698 transitions. Word has length 9 [2023-12-02 17:52:20,653 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 17:52:20,654 INFO L495 AbstractCegarLoop]: Abstraction has 516 states and 698 transitions. [2023-12-02 17:52:20,654 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-12-02 17:52:20,654 INFO L276 IsEmpty]: Start isEmpty. Operand 516 states and 698 transitions. [2023-12-02 17:52:20,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-12-02 17:52:20,654 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 17:52:20,655 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 17:52:20,661 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67d62541-d915-40fd-b4cd-67bee98c5964/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-12-02 17:52:20,858 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67d62541-d915-40fd-b4cd-67bee98c5964/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 17:52:20,859 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [vasprintfErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, vasprintfErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, remove_fileErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 67 more)] === [2023-12-02 17:52:20,859 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 17:52:20,859 INFO L85 PathProgramCache]: Analyzing trace with hash -491680234, now seen corresponding path program 1 times [2023-12-02 17:52:20,859 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 17:52:20,859 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1889575145] [2023-12-02 17:52:20,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 17:52:20,860 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 17:52:20,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 17:52:20,978 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 17:52:20,978 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 17:52:20,978 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1889575145] [2023-12-02 17:52:20,978 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1889575145] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 17:52:20,978 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1052867217] [2023-12-02 17:52:20,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 17:52:20,979 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 17:52:20,979 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67d62541-d915-40fd-b4cd-67bee98c5964/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 17:52:20,980 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67d62541-d915-40fd-b4cd-67bee98c5964/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 17:52:20,985 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67d62541-d915-40fd-b4cd-67bee98c5964/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-12-02 17:52:21,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 17:52:21,254 INFO L262 TraceCheckSpWp]: Trace formula consists of 376 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-02 17:52:21,255 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 17:52:21,274 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 17:52:21,274 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 17:52:21,300 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 17:52:21,300 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1052867217] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 17:52:21,300 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [716285438] [2023-12-02 17:52:21,319 INFO L159 IcfgInterpreter]: Started Sifa with 10 locations of interest [2023-12-02 17:52:21,320 INFO L166 IcfgInterpreter]: Building call graph [2023-12-02 17:52:21,323 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-12-02 17:52:21,329 INFO L176 IcfgInterpreter]: Starting interpretation [2023-12-02 17:52:21,329 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-12-02 17:52:27,024 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 119 for LOIs [2023-12-02 17:52:27,073 INFO L180 IcfgInterpreter]: Interpretation finished [2023-12-02 17:52:28,269 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [716285438] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 17:52:28,270 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2023-12-02 17:52:28,270 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [4, 3, 4] total 13 [2023-12-02 17:52:28,270 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1463339882] [2023-12-02 17:52:28,270 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 17:52:28,271 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-02 17:52:28,271 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 17:52:28,271 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-02 17:52:28,272 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2023-12-02 17:52:28,272 INFO L87 Difference]: Start difference. First operand 516 states and 698 transitions. Second operand has 8 states, 5 states have (on average 1.6) internal successors, (8), 6 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-12-02 17:52:31,654 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.48s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 17:52:32,877 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 17:52:32,877 INFO L93 Difference]: Finished difference Result 518 states and 699 transitions. [2023-12-02 17:52:32,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-02 17:52:32,878 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 5 states have (on average 1.6) internal successors, (8), 6 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 10 [2023-12-02 17:52:32,878 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 17:52:32,882 INFO L225 Difference]: With dead ends: 518 [2023-12-02 17:52:32,882 INFO L226 Difference]: Without dead ends: 516 [2023-12-02 17:52:32,882 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 20 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2023-12-02 17:52:32,883 INFO L413 NwaCegarLoop]: 603 mSDtfsCounter, 6 mSDsluCounter, 1478 mSDsCounter, 0 mSdLazyCounter, 691 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 2081 SdHoareTripleChecker+Invalid, 692 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 691 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2023-12-02 17:52:32,884 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 2081 Invalid, 692 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 691 Invalid, 0 Unknown, 0 Unchecked, 4.5s Time] [2023-12-02 17:52:32,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 516 states. [2023-12-02 17:52:32,908 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 516 to 516. [2023-12-02 17:52:32,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 516 states, 385 states have (on average 1.5558441558441558) internal successors, (599), 455 states have internal predecessors, (599), 52 states have call successors, (52), 16 states have call predecessors, (52), 15 states have return successors, (46), 46 states have call predecessors, (46), 46 states have call successors, (46) [2023-12-02 17:52:32,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 516 states to 516 states and 697 transitions. [2023-12-02 17:52:32,914 INFO L78 Accepts]: Start accepts. Automaton has 516 states and 697 transitions. Word has length 10 [2023-12-02 17:52:32,915 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 17:52:32,915 INFO L495 AbstractCegarLoop]: Abstraction has 516 states and 697 transitions. [2023-12-02 17:52:32,915 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 5 states have (on average 1.6) internal successors, (8), 6 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-12-02 17:52:32,915 INFO L276 IsEmpty]: Start isEmpty. Operand 516 states and 697 transitions. [2023-12-02 17:52:32,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-12-02 17:52:32,916 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 17:52:32,916 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 17:52:32,921 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67d62541-d915-40fd-b4cd-67bee98c5964/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2023-12-02 17:52:33,116 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67d62541-d915-40fd-b4cd-67bee98c5964/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 17:52:33,117 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [vasprintfErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, vasprintfErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, remove_fileErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 67 more)] === [2023-12-02 17:52:33,117 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 17:52:33,117 INFO L85 PathProgramCache]: Analyzing trace with hash -932892343, now seen corresponding path program 1 times [2023-12-02 17:52:33,118 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 17:52:33,118 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [633305828] [2023-12-02 17:52:33,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 17:52:33,118 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 17:52:33,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 17:52:33,279 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 17:52:33,279 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 17:52:33,279 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [633305828] [2023-12-02 17:52:33,279 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [633305828] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 17:52:33,279 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1006416653] [2023-12-02 17:52:33,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 17:52:33,280 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 17:52:33,280 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67d62541-d915-40fd-b4cd-67bee98c5964/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 17:52:33,281 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67d62541-d915-40fd-b4cd-67bee98c5964/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 17:52:33,283 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67d62541-d915-40fd-b4cd-67bee98c5964/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-12-02 17:52:33,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 17:52:33,606 INFO L262 TraceCheckSpWp]: Trace formula consists of 463 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-02 17:52:33,608 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 17:52:33,619 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-12-02 17:52:33,619 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 17:52:33,619 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1006416653] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 17:52:33,619 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-02 17:52:33,620 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2023-12-02 17:52:33,620 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2136977121] [2023-12-02 17:52:33,620 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 17:52:33,620 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 17:52:33,620 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 17:52:33,621 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 17:52:33,621 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-02 17:52:33,621 INFO L87 Difference]: Start difference. First operand 516 states and 697 transitions. Second operand has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-12-02 17:52:33,888 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 17:52:33,888 INFO L93 Difference]: Finished difference Result 516 states and 697 transitions. [2023-12-02 17:52:33,889 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 17:52:33,889 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 15 [2023-12-02 17:52:33,889 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 17:52:33,893 INFO L225 Difference]: With dead ends: 516 [2023-12-02 17:52:33,893 INFO L226 Difference]: Without dead ends: 515 [2023-12-02 17:52:33,894 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-02 17:52:33,894 INFO L413 NwaCegarLoop]: 605 mSDtfsCounter, 7 mSDsluCounter, 600 mSDsCounter, 0 mSdLazyCounter, 172 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 1205 SdHoareTripleChecker+Invalid, 173 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 172 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-02 17:52:33,895 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 1205 Invalid, 173 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 172 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-02 17:52:33,897 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 515 states. [2023-12-02 17:52:33,920 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 515 to 515. [2023-12-02 17:52:33,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 515 states, 385 states have (on average 1.5532467532467533) internal successors, (598), 454 states have internal predecessors, (598), 52 states have call successors, (52), 16 states have call predecessors, (52), 15 states have return successors, (46), 46 states have call predecessors, (46), 46 states have call successors, (46) [2023-12-02 17:52:33,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 515 states to 515 states and 696 transitions. [2023-12-02 17:52:33,926 INFO L78 Accepts]: Start accepts. Automaton has 515 states and 696 transitions. Word has length 15 [2023-12-02 17:52:33,927 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 17:52:33,927 INFO L495 AbstractCegarLoop]: Abstraction has 515 states and 696 transitions. [2023-12-02 17:52:33,927 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-12-02 17:52:33,927 INFO L276 IsEmpty]: Start isEmpty. Operand 515 states and 696 transitions. [2023-12-02 17:52:33,928 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-12-02 17:52:33,928 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 17:52:33,928 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 17:52:33,935 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67d62541-d915-40fd-b4cd-67bee98c5964/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-12-02 17:52:34,130 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67d62541-d915-40fd-b4cd-67bee98c5964/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2023-12-02 17:52:34,131 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [vasprintfErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, vasprintfErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, remove_fileErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 67 more)] === [2023-12-02 17:52:34,131 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 17:52:34,131 INFO L85 PathProgramCache]: Analyzing trace with hash -932940309, now seen corresponding path program 1 times [2023-12-02 17:52:34,131 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 17:52:34,131 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1573832025] [2023-12-02 17:52:34,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 17:52:34,131 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 17:52:34,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 17:52:34,300 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 17:52:34,300 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 17:52:34,300 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1573832025] [2023-12-02 17:52:34,300 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1573832025] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 17:52:34,300 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1575642305] [2023-12-02 17:52:34,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 17:52:34,301 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 17:52:34,301 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67d62541-d915-40fd-b4cd-67bee98c5964/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 17:52:34,302 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67d62541-d915-40fd-b4cd-67bee98c5964/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 17:52:34,304 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67d62541-d915-40fd-b4cd-67bee98c5964/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-12-02 17:52:34,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 17:52:34,645 INFO L262 TraceCheckSpWp]: Trace formula consists of 477 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-02 17:52:34,647 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 17:52:34,656 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-12-02 17:52:34,656 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 17:52:34,657 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1575642305] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 17:52:34,657 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-02 17:52:34,657 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2023-12-02 17:52:34,657 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1308839981] [2023-12-02 17:52:34,657 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 17:52:34,658 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 17:52:34,658 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 17:52:34,658 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 17:52:34,659 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-02 17:52:34,659 INFO L87 Difference]: Start difference. First operand 515 states and 696 transitions. Second operand has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-12-02 17:52:34,929 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 17:52:34,929 INFO L93 Difference]: Finished difference Result 515 states and 696 transitions. [2023-12-02 17:52:34,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 17:52:34,930 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 15 [2023-12-02 17:52:34,930 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 17:52:34,934 INFO L225 Difference]: With dead ends: 515 [2023-12-02 17:52:34,934 INFO L226 Difference]: Without dead ends: 514 [2023-12-02 17:52:34,934 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-02 17:52:34,935 INFO L413 NwaCegarLoop]: 605 mSDtfsCounter, 2 mSDsluCounter, 604 mSDsCounter, 0 mSdLazyCounter, 172 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 1209 SdHoareTripleChecker+Invalid, 173 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 172 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-02 17:52:34,935 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 1209 Invalid, 173 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 172 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-02 17:52:34,937 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 514 states. [2023-12-02 17:52:34,956 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 514 to 514. [2023-12-02 17:52:34,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 514 states, 385 states have (on average 1.5506493506493506) internal successors, (597), 453 states have internal predecessors, (597), 52 states have call successors, (52), 16 states have call predecessors, (52), 15 states have return successors, (46), 46 states have call predecessors, (46), 46 states have call successors, (46) [2023-12-02 17:52:34,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 514 states to 514 states and 695 transitions. [2023-12-02 17:52:34,963 INFO L78 Accepts]: Start accepts. Automaton has 514 states and 695 transitions. Word has length 15 [2023-12-02 17:52:34,963 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 17:52:34,963 INFO L495 AbstractCegarLoop]: Abstraction has 514 states and 695 transitions. [2023-12-02 17:52:34,963 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-12-02 17:52:34,964 INFO L276 IsEmpty]: Start isEmpty. Operand 514 states and 695 transitions. [2023-12-02 17:52:34,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2023-12-02 17:52:34,964 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 17:52:34,964 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 17:52:34,970 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67d62541-d915-40fd-b4cd-67bee98c5964/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2023-12-02 17:52:35,165 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67d62541-d915-40fd-b4cd-67bee98c5964/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 17:52:35,165 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [vasprintfErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, vasprintfErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, remove_fileErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 67 more)] === [2023-12-02 17:52:35,166 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 17:52:35,166 INFO L85 PathProgramCache]: Analyzing trace with hash 1145109293, now seen corresponding path program 1 times [2023-12-02 17:52:35,166 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 17:52:35,166 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1947528767] [2023-12-02 17:52:35,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 17:52:35,166 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 17:52:35,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 17:52:35,336 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 17:52:35,336 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 17:52:35,337 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1947528767] [2023-12-02 17:52:35,337 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1947528767] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 17:52:35,337 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1830027036] [2023-12-02 17:52:35,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 17:52:35,337 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 17:52:35,337 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67d62541-d915-40fd-b4cd-67bee98c5964/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 17:52:35,338 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67d62541-d915-40fd-b4cd-67bee98c5964/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 17:52:35,340 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67d62541-d915-40fd-b4cd-67bee98c5964/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-12-02 17:52:35,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 17:52:35,672 INFO L262 TraceCheckSpWp]: Trace formula consists of 464 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-02 17:52:35,674 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 17:52:35,686 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-12-02 17:52:35,686 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 17:52:35,687 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1830027036] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 17:52:35,687 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-02 17:52:35,687 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2023-12-02 17:52:35,687 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1639660531] [2023-12-02 17:52:35,687 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 17:52:35,687 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 17:52:35,688 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 17:52:35,688 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 17:52:35,688 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-02 17:52:35,688 INFO L87 Difference]: Start difference. First operand 514 states and 695 transitions. Second operand has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-12-02 17:52:35,963 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 17:52:35,964 INFO L93 Difference]: Finished difference Result 522 states and 705 transitions. [2023-12-02 17:52:35,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 17:52:35,964 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 16 [2023-12-02 17:52:35,964 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 17:52:35,968 INFO L225 Difference]: With dead ends: 522 [2023-12-02 17:52:35,968 INFO L226 Difference]: Without dead ends: 521 [2023-12-02 17:52:35,969 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-02 17:52:35,969 INFO L413 NwaCegarLoop]: 605 mSDtfsCounter, 4 mSDsluCounter, 603 mSDsCounter, 0 mSdLazyCounter, 177 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 1208 SdHoareTripleChecker+Invalid, 177 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 177 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-02 17:52:35,970 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 1208 Invalid, 177 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 177 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-02 17:52:35,971 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 521 states. [2023-12-02 17:52:35,990 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 521 to 520. [2023-12-02 17:52:35,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 520 states, 391 states have (on average 1.5498721227621484) internal successors, (606), 459 states have internal predecessors, (606), 52 states have call successors, (52), 16 states have call predecessors, (52), 15 states have return successors, (46), 46 states have call predecessors, (46), 46 states have call successors, (46) [2023-12-02 17:52:35,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 520 states to 520 states and 704 transitions. [2023-12-02 17:52:35,997 INFO L78 Accepts]: Start accepts. Automaton has 520 states and 704 transitions. Word has length 16 [2023-12-02 17:52:35,997 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 17:52:35,997 INFO L495 AbstractCegarLoop]: Abstraction has 520 states and 704 transitions. [2023-12-02 17:52:35,997 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-12-02 17:52:35,997 INFO L276 IsEmpty]: Start isEmpty. Operand 520 states and 704 transitions. [2023-12-02 17:52:35,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2023-12-02 17:52:35,998 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 17:52:35,998 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 17:52:36,006 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67d62541-d915-40fd-b4cd-67bee98c5964/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2023-12-02 17:52:36,198 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67d62541-d915-40fd-b4cd-67bee98c5964/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 17:52:36,199 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [vasprintfErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, vasprintfErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, remove_fileErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 67 more)] === [2023-12-02 17:52:36,199 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 17:52:36,199 INFO L85 PathProgramCache]: Analyzing trace with hash 1143622338, now seen corresponding path program 1 times [2023-12-02 17:52:36,199 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 17:52:36,199 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [33548733] [2023-12-02 17:52:36,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 17:52:36,200 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 17:52:36,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 17:52:36,338 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 17:52:36,338 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 17:52:36,338 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [33548733] [2023-12-02 17:52:36,338 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [33548733] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 17:52:36,338 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1073180111] [2023-12-02 17:52:36,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 17:52:36,339 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 17:52:36,339 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67d62541-d915-40fd-b4cd-67bee98c5964/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 17:52:36,341 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67d62541-d915-40fd-b4cd-67bee98c5964/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 17:52:36,349 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67d62541-d915-40fd-b4cd-67bee98c5964/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-12-02 17:52:36,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 17:52:36,665 INFO L262 TraceCheckSpWp]: Trace formula consists of 478 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-02 17:52:36,667 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 17:52:36,677 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-12-02 17:52:36,677 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 17:52:36,677 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1073180111] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 17:52:36,677 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-02 17:52:36,677 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2023-12-02 17:52:36,678 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [877105683] [2023-12-02 17:52:36,678 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 17:52:36,678 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 17:52:36,678 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 17:52:36,679 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 17:52:36,679 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-02 17:52:36,679 INFO L87 Difference]: Start difference. First operand 520 states and 704 transitions. Second operand has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-12-02 17:52:36,941 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 17:52:36,941 INFO L93 Difference]: Finished difference Result 1030 states and 1398 transitions. [2023-12-02 17:52:36,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 17:52:36,942 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 16 [2023-12-02 17:52:36,942 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 17:52:36,945 INFO L225 Difference]: With dead ends: 1030 [2023-12-02 17:52:36,945 INFO L226 Difference]: Without dead ends: 526 [2023-12-02 17:52:36,946 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-02 17:52:36,947 INFO L413 NwaCegarLoop]: 606 mSDtfsCounter, 0 mSDsluCounter, 604 mSDsCounter, 0 mSdLazyCounter, 175 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1210 SdHoareTripleChecker+Invalid, 176 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 175 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-02 17:52:36,948 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1210 Invalid, 176 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 175 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-02 17:52:36,949 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 526 states. [2023-12-02 17:52:36,963 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 526 to 526. [2023-12-02 17:52:36,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 526 states, 397 states have (on average 1.5415617128463477) internal successors, (612), 465 states have internal predecessors, (612), 52 states have call successors, (52), 16 states have call predecessors, (52), 15 states have return successors, (46), 46 states have call predecessors, (46), 46 states have call successors, (46) [2023-12-02 17:52:36,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 526 states to 526 states and 710 transitions. [2023-12-02 17:52:36,967 INFO L78 Accepts]: Start accepts. Automaton has 526 states and 710 transitions. Word has length 16 [2023-12-02 17:52:36,967 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 17:52:36,967 INFO L495 AbstractCegarLoop]: Abstraction has 526 states and 710 transitions. [2023-12-02 17:52:36,967 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-12-02 17:52:36,967 INFO L276 IsEmpty]: Start isEmpty. Operand 526 states and 710 transitions. [2023-12-02 17:52:36,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2023-12-02 17:52:36,968 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 17:52:36,968 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 17:52:36,974 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67d62541-d915-40fd-b4cd-67bee98c5964/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2023-12-02 17:52:37,168 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67d62541-d915-40fd-b4cd-67bee98c5964/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 17:52:37,169 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [vasprintfErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, vasprintfErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, remove_fileErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 67 more)] === [2023-12-02 17:52:37,169 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 17:52:37,169 INFO L85 PathProgramCache]: Analyzing trace with hash 1190148000, now seen corresponding path program 1 times [2023-12-02 17:52:37,169 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 17:52:37,169 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1460461777] [2023-12-02 17:52:37,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 17:52:37,169 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 17:52:37,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 17:52:37,267 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 17:52:37,267 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 17:52:37,267 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1460461777] [2023-12-02 17:52:37,268 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1460461777] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 17:52:37,268 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [865317251] [2023-12-02 17:52:37,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 17:52:37,268 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 17:52:37,268 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67d62541-d915-40fd-b4cd-67bee98c5964/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 17:52:37,269 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67d62541-d915-40fd-b4cd-67bee98c5964/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 17:52:37,271 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67d62541-d915-40fd-b4cd-67bee98c5964/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-12-02 17:52:37,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 17:52:37,554 INFO L262 TraceCheckSpWp]: Trace formula consists of 501 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-02 17:52:37,557 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 17:52:37,565 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-12-02 17:52:37,565 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 17:52:37,565 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [865317251] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 17:52:37,565 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-02 17:52:37,565 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2023-12-02 17:52:37,565 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [313906111] [2023-12-02 17:52:37,566 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 17:52:37,566 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 17:52:37,566 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 17:52:37,566 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 17:52:37,566 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-02 17:52:37,567 INFO L87 Difference]: Start difference. First operand 526 states and 710 transitions. Second operand has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-12-02 17:52:37,776 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 17:52:37,776 INFO L93 Difference]: Finished difference Result 530 states and 716 transitions. [2023-12-02 17:52:37,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 17:52:37,777 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 16 [2023-12-02 17:52:37,777 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 17:52:37,780 INFO L225 Difference]: With dead ends: 530 [2023-12-02 17:52:37,780 INFO L226 Difference]: Without dead ends: 529 [2023-12-02 17:52:37,781 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-02 17:52:37,781 INFO L413 NwaCegarLoop]: 600 mSDtfsCounter, 260 mSDsluCounter, 373 mSDsCounter, 0 mSdLazyCounter, 143 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 268 SdHoareTripleChecker+Valid, 973 SdHoareTripleChecker+Invalid, 144 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 143 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-02 17:52:37,782 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [268 Valid, 973 Invalid, 144 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 143 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-02 17:52:37,783 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 529 states. [2023-12-02 17:52:37,802 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 529 to 525. [2023-12-02 17:52:37,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 525 states, 397 states have (on average 1.5390428211586902) internal successors, (611), 464 states have internal predecessors, (611), 52 states have call successors, (52), 16 states have call predecessors, (52), 15 states have return successors, (46), 46 states have call predecessors, (46), 46 states have call successors, (46) [2023-12-02 17:52:37,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 525 states to 525 states and 709 transitions. [2023-12-02 17:52:37,807 INFO L78 Accepts]: Start accepts. Automaton has 525 states and 709 transitions. Word has length 16 [2023-12-02 17:52:37,807 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 17:52:37,807 INFO L495 AbstractCegarLoop]: Abstraction has 525 states and 709 transitions. [2023-12-02 17:52:37,807 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-12-02 17:52:37,807 INFO L276 IsEmpty]: Start isEmpty. Operand 525 states and 709 transitions. [2023-12-02 17:52:37,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-12-02 17:52:37,808 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 17:52:37,808 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 17:52:37,815 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67d62541-d915-40fd-b4cd-67bee98c5964/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2023-12-02 17:52:38,008 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67d62541-d915-40fd-b4cd-67bee98c5964/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 17:52:38,009 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [vasprintfErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, vasprintfErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, remove_fileErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 67 more)] === [2023-12-02 17:52:38,009 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 17:52:38,009 INFO L85 PathProgramCache]: Analyzing trace with hash -1760116792, now seen corresponding path program 1 times [2023-12-02 17:52:38,009 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 17:52:38,009 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2006552155] [2023-12-02 17:52:38,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 17:52:38,009 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 17:52:38,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 17:52:38,145 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 17:52:38,145 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 17:52:38,145 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2006552155] [2023-12-02 17:52:38,145 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2006552155] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 17:52:38,145 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1817676243] [2023-12-02 17:52:38,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 17:52:38,146 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 17:52:38,146 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67d62541-d915-40fd-b4cd-67bee98c5964/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 17:52:38,147 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67d62541-d915-40fd-b4cd-67bee98c5964/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 17:52:38,152 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67d62541-d915-40fd-b4cd-67bee98c5964/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-12-02 17:52:38,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 17:52:38,448 INFO L262 TraceCheckSpWp]: Trace formula consists of 502 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-02 17:52:38,450 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 17:52:38,460 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-12-02 17:52:38,461 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 17:52:38,461 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1817676243] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 17:52:38,461 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-02 17:52:38,461 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2023-12-02 17:52:38,461 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2000931654] [2023-12-02 17:52:38,461 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 17:52:38,462 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 17:52:38,462 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 17:52:38,462 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 17:52:38,462 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-02 17:52:38,462 INFO L87 Difference]: Start difference. First operand 525 states and 709 transitions. Second operand has 3 states, 2 states have (on average 7.5) internal successors, (15), 3 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-12-02 17:52:38,740 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 17:52:38,740 INFO L93 Difference]: Finished difference Result 727 states and 993 transitions. [2023-12-02 17:52:38,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 17:52:38,741 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 7.5) internal successors, (15), 3 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 17 [2023-12-02 17:52:38,741 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 17:52:38,745 INFO L225 Difference]: With dead ends: 727 [2023-12-02 17:52:38,745 INFO L226 Difference]: Without dead ends: 726 [2023-12-02 17:52:38,746 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-02 17:52:38,746 INFO L413 NwaCegarLoop]: 601 mSDtfsCounter, 258 mSDsluCounter, 596 mSDsCounter, 0 mSdLazyCounter, 186 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 266 SdHoareTripleChecker+Valid, 1197 SdHoareTripleChecker+Invalid, 186 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 186 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-02 17:52:38,746 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [266 Valid, 1197 Invalid, 186 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 186 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-02 17:52:38,748 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 726 states. [2023-12-02 17:52:38,762 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 726 to 529. [2023-12-02 17:52:38,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 529 states, 401 states have (on average 1.5361596009975063) internal successors, (616), 468 states have internal predecessors, (616), 52 states have call successors, (52), 16 states have call predecessors, (52), 15 states have return successors, (46), 46 states have call predecessors, (46), 46 states have call successors, (46) [2023-12-02 17:52:38,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 529 states to 529 states and 714 transitions. [2023-12-02 17:52:38,766 INFO L78 Accepts]: Start accepts. Automaton has 529 states and 714 transitions. Word has length 17 [2023-12-02 17:52:38,766 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 17:52:38,767 INFO L495 AbstractCegarLoop]: Abstraction has 529 states and 714 transitions. [2023-12-02 17:52:38,767 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 7.5) internal successors, (15), 3 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-12-02 17:52:38,767 INFO L276 IsEmpty]: Start isEmpty. Operand 529 states and 714 transitions. [2023-12-02 17:52:38,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2023-12-02 17:52:38,768 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 17:52:38,768 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 17:52:38,775 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67d62541-d915-40fd-b4cd-67bee98c5964/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2023-12-02 17:52:38,969 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67d62541-d915-40fd-b4cd-67bee98c5964/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 17:52:38,969 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [vasprintfErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, vasprintfErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, remove_fileErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 67 more)] === [2023-12-02 17:52:38,970 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 17:52:38,970 INFO L85 PathProgramCache]: Analyzing trace with hash 1973313704, now seen corresponding path program 1 times [2023-12-02 17:52:38,970 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 17:52:38,970 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [504406326] [2023-12-02 17:52:38,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 17:52:38,970 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 17:52:39,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 17:52:39,079 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-12-02 17:52:39,079 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 17:52:39,079 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [504406326] [2023-12-02 17:52:39,080 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [504406326] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 17:52:39,080 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [606902608] [2023-12-02 17:52:39,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 17:52:39,080 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 17:52:39,080 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67d62541-d915-40fd-b4cd-67bee98c5964/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 17:52:39,081 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67d62541-d915-40fd-b4cd-67bee98c5964/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 17:52:39,085 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67d62541-d915-40fd-b4cd-67bee98c5964/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-12-02 17:52:39,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 17:52:39,416 INFO L262 TraceCheckSpWp]: Trace formula consists of 497 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-02 17:52:39,417 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 17:52:39,424 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-02 17:52:39,425 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 17:52:39,425 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [606902608] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 17:52:39,425 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-02 17:52:39,425 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2023-12-02 17:52:39,425 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1575109812] [2023-12-02 17:52:39,425 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 17:52:39,425 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 17:52:39,426 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 17:52:39,426 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 17:52:39,426 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-02 17:52:39,426 INFO L87 Difference]: Start difference. First operand 529 states and 714 transitions. Second operand has 3 states, 2 states have (on average 8.5) internal successors, (17), 3 states have internal predecessors, (17), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-12-02 17:52:39,659 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 17:52:39,659 INFO L93 Difference]: Finished difference Result 529 states and 714 transitions. [2023-12-02 17:52:39,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 17:52:39,660 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 8.5) internal successors, (17), 3 states have internal predecessors, (17), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 19 [2023-12-02 17:52:39,660 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 17:52:39,663 INFO L225 Difference]: With dead ends: 529 [2023-12-02 17:52:39,663 INFO L226 Difference]: Without dead ends: 528 [2023-12-02 17:52:39,664 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-02 17:52:39,664 INFO L413 NwaCegarLoop]: 604 mSDtfsCounter, 0 mSDsluCounter, 603 mSDsCounter, 0 mSdLazyCounter, 172 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1207 SdHoareTripleChecker+Invalid, 173 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 172 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-02 17:52:39,664 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1207 Invalid, 173 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 172 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-02 17:52:39,666 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 528 states. [2023-12-02 17:52:39,685 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 528 to 524. [2023-12-02 17:52:39,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 524 states, 397 states have (on average 1.5365239294710327) internal successors, (610), 463 states have internal predecessors, (610), 52 states have call successors, (52), 16 states have call predecessors, (52), 15 states have return successors, (46), 46 states have call predecessors, (46), 46 states have call successors, (46) [2023-12-02 17:52:39,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 524 states to 524 states and 708 transitions. [2023-12-02 17:52:39,689 INFO L78 Accepts]: Start accepts. Automaton has 524 states and 708 transitions. Word has length 19 [2023-12-02 17:52:39,689 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 17:52:39,690 INFO L495 AbstractCegarLoop]: Abstraction has 524 states and 708 transitions. [2023-12-02 17:52:39,690 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 8.5) internal successors, (17), 3 states have internal predecessors, (17), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-12-02 17:52:39,690 INFO L276 IsEmpty]: Start isEmpty. Operand 524 states and 708 transitions. [2023-12-02 17:52:39,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2023-12-02 17:52:39,691 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 17:52:39,691 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 17:52:39,704 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67d62541-d915-40fd-b4cd-67bee98c5964/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2023-12-02 17:52:39,904 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67d62541-d915-40fd-b4cd-67bee98c5964/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2023-12-02 17:52:39,905 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [vasprintfErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, vasprintfErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, remove_fileErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 67 more)] === [2023-12-02 17:52:39,905 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 17:52:39,905 INFO L85 PathProgramCache]: Analyzing trace with hash -1405708529, now seen corresponding path program 1 times [2023-12-02 17:52:39,905 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 17:52:39,905 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [103091724] [2023-12-02 17:52:39,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 17:52:39,905 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 17:52:39,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 17:52:40,037 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-12-02 17:52:40,038 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 17:52:40,038 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [103091724] [2023-12-02 17:52:40,038 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [103091724] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 17:52:40,038 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1842891433] [2023-12-02 17:52:40,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 17:52:40,038 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 17:52:40,038 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67d62541-d915-40fd-b4cd-67bee98c5964/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 17:52:40,039 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67d62541-d915-40fd-b4cd-67bee98c5964/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 17:52:40,045 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67d62541-d915-40fd-b4cd-67bee98c5964/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2023-12-02 17:52:40,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 17:52:40,347 INFO L262 TraceCheckSpWp]: Trace formula consists of 511 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-02 17:52:40,349 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 17:52:40,359 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-12-02 17:52:40,359 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 17:52:40,377 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-12-02 17:52:40,378 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1842891433] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 17:52:40,378 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [980743652] [2023-12-02 17:52:40,380 INFO L159 IcfgInterpreter]: Started Sifa with 17 locations of interest [2023-12-02 17:52:40,380 INFO L166 IcfgInterpreter]: Building call graph [2023-12-02 17:52:40,381 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-12-02 17:52:40,381 INFO L176 IcfgInterpreter]: Starting interpretation [2023-12-02 17:52:40,381 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-12-02 17:52:44,918 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 119 for LOIs [2023-12-02 17:52:44,945 INFO L180 IcfgInterpreter]: Interpretation finished [2023-12-02 17:52:47,027 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [980743652] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 17:52:47,027 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2023-12-02 17:52:47,027 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [4, 3, 4] total 15 [2023-12-02 17:52:47,027 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1812710889] [2023-12-02 17:52:47,027 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 17:52:47,028 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-02 17:52:47,028 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 17:52:47,028 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-02 17:52:47,029 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=165, Unknown=1, NotChecked=0, Total=210 [2023-12-02 17:52:47,029 INFO L87 Difference]: Start difference. First operand 524 states and 708 transitions. Second operand has 10 states, 8 states have (on average 2.0) internal successors, (16), 8 states have internal predecessors, (16), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-12-02 17:52:48,388 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 17:52:54,101 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 17:52:54,101 INFO L93 Difference]: Finished difference Result 1021 states and 1384 transitions. [2023-12-02 17:52:54,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-02 17:52:54,102 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 8 states have (on average 2.0) internal successors, (16), 8 states have internal predecessors, (16), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 21 [2023-12-02 17:52:54,102 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 17:52:54,105 INFO L225 Difference]: With dead ends: 1021 [2023-12-02 17:52:54,105 INFO L226 Difference]: Without dead ends: 524 [2023-12-02 17:52:54,107 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 51 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=44, Invalid=165, Unknown=1, NotChecked=0, Total=210 [2023-12-02 17:52:54,108 INFO L413 NwaCegarLoop]: 598 mSDtfsCounter, 2 mSDsluCounter, 2463 mSDsCounter, 0 mSdLazyCounter, 1074 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 3061 SdHoareTripleChecker+Invalid, 1075 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1074 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.0s IncrementalHoareTripleChecker+Time [2023-12-02 17:52:54,108 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 3061 Invalid, 1075 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1074 Invalid, 1 Unknown, 0 Unchecked, 7.0s Time] [2023-12-02 17:52:54,110 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 524 states. [2023-12-02 17:52:54,129 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 524 to 524. [2023-12-02 17:52:54,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 524 states, 397 states have (on average 1.5340050377833754) internal successors, (609), 463 states have internal predecessors, (609), 52 states have call successors, (52), 16 states have call predecessors, (52), 15 states have return successors, (46), 46 states have call predecessors, (46), 46 states have call successors, (46) [2023-12-02 17:52:54,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 524 states to 524 states and 707 transitions. [2023-12-02 17:52:54,134 INFO L78 Accepts]: Start accepts. Automaton has 524 states and 707 transitions. Word has length 21 [2023-12-02 17:52:54,134 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 17:52:54,134 INFO L495 AbstractCegarLoop]: Abstraction has 524 states and 707 transitions. [2023-12-02 17:52:54,134 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 8 states have (on average 2.0) internal successors, (16), 8 states have internal predecessors, (16), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-12-02 17:52:54,134 INFO L276 IsEmpty]: Start isEmpty. Operand 524 states and 707 transitions. [2023-12-02 17:52:54,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2023-12-02 17:52:54,135 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 17:52:54,135 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 17:52:54,142 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67d62541-d915-40fd-b4cd-67bee98c5964/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2023-12-02 17:52:54,340 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67d62541-d915-40fd-b4cd-67bee98c5964/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2023-12-02 17:52:54,340 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [vasprintfErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, vasprintfErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, remove_fileErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 67 more)] === [2023-12-02 17:52:54,341 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 17:52:54,341 INFO L85 PathProgramCache]: Analyzing trace with hash 68054776, now seen corresponding path program 1 times [2023-12-02 17:52:54,341 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 17:52:54,341 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [842153293] [2023-12-02 17:52:54,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 17:52:54,341 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 17:52:54,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 17:52:54,448 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2023-12-02 17:52:54,448 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 17:52:54,448 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [842153293] [2023-12-02 17:52:54,448 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [842153293] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 17:52:54,449 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [456738760] [2023-12-02 17:52:54,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 17:52:54,449 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 17:52:54,449 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67d62541-d915-40fd-b4cd-67bee98c5964/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 17:52:54,450 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67d62541-d915-40fd-b4cd-67bee98c5964/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 17:52:54,453 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67d62541-d915-40fd-b4cd-67bee98c5964/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2023-12-02 17:52:54,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 17:52:54,838 INFO L262 TraceCheckSpWp]: Trace formula consists of 552 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-02 17:52:54,839 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 17:52:54,849 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2023-12-02 17:52:54,849 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 17:52:54,869 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2023-12-02 17:52:54,869 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [456738760] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 17:52:54,869 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2116796924] [2023-12-02 17:52:54,872 INFO L159 IcfgInterpreter]: Started Sifa with 18 locations of interest [2023-12-02 17:52:54,872 INFO L166 IcfgInterpreter]: Building call graph [2023-12-02 17:52:54,872 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-12-02 17:52:54,872 INFO L176 IcfgInterpreter]: Starting interpretation [2023-12-02 17:52:54,872 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-12-02 17:53:07,568 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 119 for LOIs [2023-12-02 17:53:07,595 INFO L180 IcfgInterpreter]: Interpretation finished [2023-12-02 17:53:09,232 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '19631#(<= 2147483647 |ULTIMATE.start_main_~i~6#1|)' at error location [2023-12-02 17:53:09,232 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2023-12-02 17:53:09,232 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-02 17:53:09,232 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 3, 4] total 7 [2023-12-02 17:53:09,233 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2073822307] [2023-12-02 17:53:09,233 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-02 17:53:09,233 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-02 17:53:09,233 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 17:53:09,234 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-02 17:53:09,234 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=256, Unknown=0, NotChecked=0, Total=306 [2023-12-02 17:53:09,234 INFO L87 Difference]: Start difference. First operand 524 states and 707 transitions. Second operand has 7 states, 7 states have (on average 4.0) internal successors, (28), 7 states have internal predecessors, (28), 1 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-12-02 17:53:09,525 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 17:53:09,525 INFO L93 Difference]: Finished difference Result 1052 states and 1420 transitions. [2023-12-02 17:53:09,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-02 17:53:09,526 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 4.0) internal successors, (28), 7 states have internal predecessors, (28), 1 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 26 [2023-12-02 17:53:09,526 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 17:53:09,528 INFO L225 Difference]: With dead ends: 1052 [2023-12-02 17:53:09,529 INFO L226 Difference]: Without dead ends: 533 [2023-12-02 17:53:09,531 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 63 SyntacticMatches, 1 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 96 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=50, Invalid=256, Unknown=0, NotChecked=0, Total=306 [2023-12-02 17:53:09,531 INFO L413 NwaCegarLoop]: 604 mSDtfsCounter, 4 mSDsluCounter, 1208 mSDsCounter, 0 mSdLazyCounter, 266 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 1812 SdHoareTripleChecker+Invalid, 268 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 266 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-02 17:53:09,531 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 1812 Invalid, 268 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 266 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-02 17:53:09,533 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 533 states. [2023-12-02 17:53:09,553 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 533 to 533. [2023-12-02 17:53:09,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 533 states, 406 states have (on average 1.522167487684729) internal successors, (618), 472 states have internal predecessors, (618), 52 states have call successors, (52), 16 states have call predecessors, (52), 15 states have return successors, (46), 46 states have call predecessors, (46), 46 states have call successors, (46) [2023-12-02 17:53:09,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 533 states to 533 states and 716 transitions. [2023-12-02 17:53:09,558 INFO L78 Accepts]: Start accepts. Automaton has 533 states and 716 transitions. Word has length 26 [2023-12-02 17:53:09,558 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 17:53:09,558 INFO L495 AbstractCegarLoop]: Abstraction has 533 states and 716 transitions. [2023-12-02 17:53:09,558 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 4.0) internal successors, (28), 7 states have internal predecessors, (28), 1 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-12-02 17:53:09,558 INFO L276 IsEmpty]: Start isEmpty. Operand 533 states and 716 transitions. [2023-12-02 17:53:09,559 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2023-12-02 17:53:09,559 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 17:53:09,560 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 17:53:09,567 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67d62541-d915-40fd-b4cd-67bee98c5964/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2023-12-02 17:53:09,764 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67d62541-d915-40fd-b4cd-67bee98c5964/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 17:53:09,764 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [vasprintfErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, vasprintfErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, remove_fileErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 67 more)] === [2023-12-02 17:53:09,765 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 17:53:09,765 INFO L85 PathProgramCache]: Analyzing trace with hash 1173847056, now seen corresponding path program 2 times [2023-12-02 17:53:09,765 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 17:53:09,765 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1057208190] [2023-12-02 17:53:09,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 17:53:09,765 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 17:53:09,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 17:53:09,940 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2023-12-02 17:53:09,941 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 17:53:09,941 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1057208190] [2023-12-02 17:53:09,941 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1057208190] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 17:53:09,941 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1130353647] [2023-12-02 17:53:09,941 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-12-02 17:53:09,941 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 17:53:09,941 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67d62541-d915-40fd-b4cd-67bee98c5964/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 17:53:09,942 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67d62541-d915-40fd-b4cd-67bee98c5964/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 17:53:09,945 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67d62541-d915-40fd-b4cd-67bee98c5964/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2023-12-02 17:53:10,305 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2023-12-02 17:53:10,305 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-02 17:53:10,307 INFO L262 TraceCheckSpWp]: Trace formula consists of 445 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-02 17:53:10,309 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 17:53:10,338 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2023-12-02 17:53:10,338 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 17:53:10,371 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2023-12-02 17:53:10,371 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1130353647] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 17:53:10,371 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1362364914] [2023-12-02 17:53:10,374 INFO L159 IcfgInterpreter]: Started Sifa with 18 locations of interest [2023-12-02 17:53:10,374 INFO L166 IcfgInterpreter]: Building call graph [2023-12-02 17:53:10,376 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-12-02 17:53:10,376 INFO L176 IcfgInterpreter]: Starting interpretation [2023-12-02 17:53:10,376 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-12-02 17:53:29,562 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 119 for LOIs [2023-12-02 17:53:29,593 INFO L180 IcfgInterpreter]: Interpretation finished [2023-12-02 17:53:31,530 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '21767#(<= 2147483647 |ULTIMATE.start_main_~i~6#1|)' at error location [2023-12-02 17:53:31,530 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2023-12-02 17:53:31,530 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-02 17:53:31,530 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 3, 3] total 8 [2023-12-02 17:53:31,530 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [563282452] [2023-12-02 17:53:31,530 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-02 17:53:31,531 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-02 17:53:31,531 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 17:53:31,531 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-02 17:53:31,532 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=325, Unknown=1, NotChecked=0, Total=380 [2023-12-02 17:53:31,532 INFO L87 Difference]: Start difference. First operand 533 states and 716 transitions. Second operand has 8 states, 8 states have (on average 7.125) internal successors, (57), 8 states have internal predecessors, (57), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-12-02 17:53:32,066 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 17:53:32,067 INFO L93 Difference]: Finished difference Result 1049 states and 1416 transitions. [2023-12-02 17:53:32,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-02 17:53:32,067 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.125) internal successors, (57), 8 states have internal predecessors, (57), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 35 [2023-12-02 17:53:32,067 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 17:53:32,070 INFO L225 Difference]: With dead ends: 1049 [2023-12-02 17:53:32,071 INFO L226 Difference]: Without dead ends: 542 [2023-12-02 17:53:32,073 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 86 SyntacticMatches, 4 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 105 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=87, Invalid=463, Unknown=2, NotChecked=0, Total=552 [2023-12-02 17:53:32,073 INFO L413 NwaCegarLoop]: 595 mSDtfsCounter, 305 mSDsluCounter, 2435 mSDsCounter, 0 mSdLazyCounter, 450 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 318 SdHoareTripleChecker+Valid, 3030 SdHoareTripleChecker+Invalid, 454 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 450 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-02 17:53:32,073 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [318 Valid, 3030 Invalid, 454 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 450 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-02 17:53:32,075 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 542 states. [2023-12-02 17:53:32,089 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 542 to 529. [2023-12-02 17:53:32,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 529 states, 403 states have (on average 1.521091811414392) internal successors, (613), 468 states have internal predecessors, (613), 52 states have call successors, (52), 16 states have call predecessors, (52), 15 states have return successors, (46), 46 states have call predecessors, (46), 46 states have call successors, (46) [2023-12-02 17:53:32,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 529 states to 529 states and 711 transitions. [2023-12-02 17:53:32,092 INFO L78 Accepts]: Start accepts. Automaton has 529 states and 711 transitions. Word has length 35 [2023-12-02 17:53:32,092 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 17:53:32,092 INFO L495 AbstractCegarLoop]: Abstraction has 529 states and 711 transitions. [2023-12-02 17:53:32,092 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.125) internal successors, (57), 8 states have internal predecessors, (57), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-12-02 17:53:32,092 INFO L276 IsEmpty]: Start isEmpty. Operand 529 states and 711 transitions. [2023-12-02 17:53:32,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2023-12-02 17:53:32,093 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 17:53:32,093 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 17:53:32,100 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67d62541-d915-40fd-b4cd-67bee98c5964/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2023-12-02 17:53:32,294 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67d62541-d915-40fd-b4cd-67bee98c5964/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2023-12-02 17:53:32,294 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [vasprintfErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, vasprintfErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, remove_fileErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 67 more)] === [2023-12-02 17:53:32,294 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 17:53:32,294 INFO L85 PathProgramCache]: Analyzing trace with hash -1777344894, now seen corresponding path program 1 times [2023-12-02 17:53:32,294 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 17:53:32,294 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1784199988] [2023-12-02 17:53:32,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 17:53:32,295 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 17:53:32,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 17:53:32,539 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-12-02 17:53:32,539 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 17:53:32,539 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1784199988] [2023-12-02 17:53:32,540 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1784199988] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 17:53:32,540 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1571634736] [2023-12-02 17:53:32,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 17:53:32,540 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 17:53:32,540 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67d62541-d915-40fd-b4cd-67bee98c5964/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 17:53:32,541 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67d62541-d915-40fd-b4cd-67bee98c5964/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 17:53:32,544 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67d62541-d915-40fd-b4cd-67bee98c5964/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2023-12-02 17:53:32,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 17:53:32,948 INFO L262 TraceCheckSpWp]: Trace formula consists of 656 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-02 17:53:32,951 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 17:53:33,008 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-12-02 17:53:33,008 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 17:53:33,100 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-12-02 17:53:33,100 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1571634736] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 17:53:33,100 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [703646513] [2023-12-02 17:53:33,103 INFO L159 IcfgInterpreter]: Started Sifa with 22 locations of interest [2023-12-02 17:53:33,103 INFO L166 IcfgInterpreter]: Building call graph [2023-12-02 17:53:33,104 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-12-02 17:53:33,104 INFO L176 IcfgInterpreter]: Starting interpretation [2023-12-02 17:53:33,104 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-12-02 17:53:50,005 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 119 for LOIs [2023-12-02 17:53:50,032 INFO L180 IcfgInterpreter]: Interpretation finished [2023-12-02 17:53:53,042 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '23938#(and (= 21 |ULTIMATE.start_getopt32_~applet_opts#1.base|) (= |ULTIMATE.start_getopt32_#in~applet_opts#1.base| 21) (= ~opt_complementary~0.base 20) (= 0 (+ |ULTIMATE.start_getopt32_~max_arg~0#1| 1)) (= |ULTIMATE.start_getopt32_~spec_flgs~0#1| 0) (= |ULTIMATE.start_getopt32_~flags~0#1| 0) (= ~opt_complementary~0.offset 0) (<= 2147483647 |ULTIMATE.start_getopt32_~argc~0#1|) (= |ULTIMATE.start_getopt32_#varArgs#1.offset| 0) (= |ULTIMATE.start___main_#t~varargs246#1.offset| 0) (= |ULTIMATE.start_getopt32_~min_arg~0#1| 0) (= |ULTIMATE.start_getopt32_~applet_opts#1.offset| 0) (= 0 |ULTIMATE.start_getopt32_#in~applet_opts#1.offset|) (= |ULTIMATE.start___main_~status~1#1| 0) (= |ULTIMATE.start___main_~flags~1#1| 0) (= |ULTIMATE.start_getopt32_~#complementary~0#1.offset| 0) (= |ULTIMATE.start_getopt32_~requires~0#1| 0))' at error location [2023-12-02 17:53:53,042 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2023-12-02 17:53:53,042 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-02 17:53:53,042 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 6, 7] total 14 [2023-12-02 17:53:53,042 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1271574848] [2023-12-02 17:53:53,042 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-02 17:53:53,043 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-12-02 17:53:53,043 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 17:53:53,043 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-12-02 17:53:53,044 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=109, Invalid=647, Unknown=0, NotChecked=0, Total=756 [2023-12-02 17:53:53,044 INFO L87 Difference]: Start difference. First operand 529 states and 711 transitions. Second operand has 14 states, 14 states have (on average 5.142857142857143) internal successors, (72), 14 states have internal predecessors, (72), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-12-02 17:53:53,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 17:53:53,772 INFO L93 Difference]: Finished difference Result 1460 states and 1993 transitions. [2023-12-02 17:53:53,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-02 17:53:53,772 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 5.142857142857143) internal successors, (72), 14 states have internal predecessors, (72), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 40 [2023-12-02 17:53:53,772 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 17:53:53,777 INFO L225 Difference]: With dead ends: 1460 [2023-12-02 17:53:53,777 INFO L226 Difference]: Without dead ends: 945 [2023-12-02 17:53:53,779 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 91 SyntacticMatches, 4 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 299 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=109, Invalid=647, Unknown=0, NotChecked=0, Total=756 [2023-12-02 17:53:53,779 INFO L413 NwaCegarLoop]: 596 mSDtfsCounter, 520 mSDsluCounter, 3564 mSDsCounter, 0 mSdLazyCounter, 686 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 536 SdHoareTripleChecker+Valid, 4160 SdHoareTripleChecker+Invalid, 688 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 686 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-02 17:53:53,780 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [536 Valid, 4160 Invalid, 688 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 686 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-02 17:53:53,781 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 945 states. [2023-12-02 17:53:53,801 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 945 to 551. [2023-12-02 17:53:53,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 551 states, 425 states have (on average 1.4964705882352942) internal successors, (636), 490 states have internal predecessors, (636), 52 states have call successors, (52), 16 states have call predecessors, (52), 15 states have return successors, (46), 46 states have call predecessors, (46), 46 states have call successors, (46) [2023-12-02 17:53:53,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 551 states to 551 states and 734 transitions. [2023-12-02 17:53:53,805 INFO L78 Accepts]: Start accepts. Automaton has 551 states and 734 transitions. Word has length 40 [2023-12-02 17:53:53,805 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 17:53:53,805 INFO L495 AbstractCegarLoop]: Abstraction has 551 states and 734 transitions. [2023-12-02 17:53:53,805 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 5.142857142857143) internal successors, (72), 14 states have internal predecessors, (72), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-12-02 17:53:53,805 INFO L276 IsEmpty]: Start isEmpty. Operand 551 states and 734 transitions. [2023-12-02 17:53:53,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2023-12-02 17:53:53,807 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 17:53:53,807 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 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] [2023-12-02 17:53:53,813 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67d62541-d915-40fd-b4cd-67bee98c5964/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2023-12-02 17:53:54,008 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67d62541-d915-40fd-b4cd-67bee98c5964/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2023-12-02 17:53:54,009 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [vasprintfErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, vasprintfErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, remove_fileErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 67 more)] === [2023-12-02 17:53:54,009 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 17:53:54,009 INFO L85 PathProgramCache]: Analyzing trace with hash -500790843, now seen corresponding path program 1 times [2023-12-02 17:53:54,009 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 17:53:54,009 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2126927038] [2023-12-02 17:53:54,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 17:53:54,009 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 17:53:54,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 17:53:54,240 INFO L134 CoverageAnalysis]: Checked inductivity of 151 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 151 trivial. 0 not checked. [2023-12-02 17:53:54,240 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 17:53:54,240 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2126927038] [2023-12-02 17:53:54,241 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2126927038] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 17:53:54,241 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 17:53:54,241 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-02 17:53:54,241 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1747145629] [2023-12-02 17:53:54,241 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 17:53:54,241 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 17:53:54,242 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 17:53:54,242 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 17:53:54,242 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 17:53:54,242 INFO L87 Difference]: Start difference. First operand 551 states and 734 transitions. Second operand has 3 states, 2 states have (on average 14.0) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-12-02 17:53:54,616 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 17:53:54,616 INFO L93 Difference]: Finished difference Result 1101 states and 1487 transitions. [2023-12-02 17:53:54,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 17:53:54,617 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 14.0) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 62 [2023-12-02 17:53:54,617 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 17:53:54,621 INFO L225 Difference]: With dead ends: 1101 [2023-12-02 17:53:54,621 INFO L226 Difference]: Without dead ends: 631 [2023-12-02 17:53:54,623 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 17:53:54,623 INFO L413 NwaCegarLoop]: 600 mSDtfsCounter, 91 mSDsluCounter, 557 mSDsCounter, 0 mSdLazyCounter, 220 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 95 SdHoareTripleChecker+Valid, 1157 SdHoareTripleChecker+Invalid, 228 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 220 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-02 17:53:54,624 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [95 Valid, 1157 Invalid, 228 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 220 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-02 17:53:54,625 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 631 states. [2023-12-02 17:53:54,656 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 631 to 588. [2023-12-02 17:53:54,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 588 states, 461 states have (on average 1.4880694143167028) internal successors, (686), 526 states have internal predecessors, (686), 53 states have call successors, (53), 16 states have call predecessors, (53), 15 states have return successors, (47), 47 states have call predecessors, (47), 47 states have call successors, (47) [2023-12-02 17:53:54,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 588 states to 588 states and 786 transitions. [2023-12-02 17:53:54,661 INFO L78 Accepts]: Start accepts. Automaton has 588 states and 786 transitions. Word has length 62 [2023-12-02 17:53:54,661 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 17:53:54,661 INFO L495 AbstractCegarLoop]: Abstraction has 588 states and 786 transitions. [2023-12-02 17:53:54,662 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 14.0) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-12-02 17:53:54,662 INFO L276 IsEmpty]: Start isEmpty. Operand 588 states and 786 transitions. [2023-12-02 17:53:54,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2023-12-02 17:53:54,663 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 17:53:54,663 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 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] [2023-12-02 17:53:54,663 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-12-02 17:53:54,663 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [vasprintfErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, vasprintfErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, remove_fileErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 67 more)] === [2023-12-02 17:53:54,663 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 17:53:54,664 INFO L85 PathProgramCache]: Analyzing trace with hash 1655397991, now seen corresponding path program 1 times [2023-12-02 17:53:54,664 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 17:53:54,664 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [363448712] [2023-12-02 17:53:54,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 17:53:54,664 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 17:53:54,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 17:53:54,943 INFO L134 CoverageAnalysis]: Checked inductivity of 151 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 151 trivial. 0 not checked. [2023-12-02 17:53:54,944 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 17:53:54,944 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [363448712] [2023-12-02 17:53:54,944 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [363448712] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 17:53:54,944 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 17:53:54,944 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 17:53:54,944 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1638322264] [2023-12-02 17:53:54,944 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 17:53:54,945 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-02 17:53:54,945 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 17:53:54,945 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-02 17:53:54,945 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-02 17:53:54,945 INFO L87 Difference]: Start difference. First operand 588 states and 786 transitions. Second operand has 4 states, 3 states have (on average 9.666666666666666) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-12-02 17:53:55,377 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 17:53:55,377 INFO L93 Difference]: Finished difference Result 631 states and 840 transitions. [2023-12-02 17:53:55,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-02 17:53:55,378 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 9.666666666666666) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 63 [2023-12-02 17:53:55,378 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 17:53:55,381 INFO L225 Difference]: With dead ends: 631 [2023-12-02 17:53:55,381 INFO L226 Difference]: Without dead ends: 629 [2023-12-02 17:53:55,382 INFO L412 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 [2023-12-02 17:53:55,382 INFO L413 NwaCegarLoop]: 622 mSDtfsCounter, 90 mSDsluCounter, 1177 mSDsCounter, 0 mSdLazyCounter, 324 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 94 SdHoareTripleChecker+Valid, 1799 SdHoareTripleChecker+Invalid, 326 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 324 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-02 17:53:55,382 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [94 Valid, 1799 Invalid, 326 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 324 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-02 17:53:55,383 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 629 states. [2023-12-02 17:53:55,409 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 629 to 588. [2023-12-02 17:53:55,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 588 states, 461 states have (on average 1.4837310195227766) internal successors, (684), 526 states have internal predecessors, (684), 53 states have call successors, (53), 16 states have call predecessors, (53), 15 states have return successors, (47), 47 states have call predecessors, (47), 47 states have call successors, (47) [2023-12-02 17:53:55,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 588 states to 588 states and 784 transitions. [2023-12-02 17:53:55,413 INFO L78 Accepts]: Start accepts. Automaton has 588 states and 784 transitions. Word has length 63 [2023-12-02 17:53:55,414 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 17:53:55,414 INFO L495 AbstractCegarLoop]: Abstraction has 588 states and 784 transitions. [2023-12-02 17:53:55,414 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 9.666666666666666) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-12-02 17:53:55,414 INFO L276 IsEmpty]: Start isEmpty. Operand 588 states and 784 transitions. [2023-12-02 17:53:55,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2023-12-02 17:53:55,415 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 17:53:55,415 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 17:53:55,416 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-12-02 17:53:55,416 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [vasprintfErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, vasprintfErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, remove_fileErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 67 more)] === [2023-12-02 17:53:55,416 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 17:53:55,416 INFO L85 PathProgramCache]: Analyzing trace with hash 632701897, now seen corresponding path program 2 times [2023-12-02 17:53:55,417 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 17:53:55,417 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [121252988] [2023-12-02 17:53:55,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 17:53:55,417 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 17:53:55,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 17:53:55,626 INFO L134 CoverageAnalysis]: Checked inductivity of 163 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 151 trivial. 0 not checked. [2023-12-02 17:53:55,626 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 17:53:55,626 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [121252988] [2023-12-02 17:53:55,626 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [121252988] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 17:53:55,626 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1846404846] [2023-12-02 17:53:55,626 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-12-02 17:53:55,626 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 17:53:55,627 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67d62541-d915-40fd-b4cd-67bee98c5964/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 17:53:55,627 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67d62541-d915-40fd-b4cd-67bee98c5964/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 17:53:55,630 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67d62541-d915-40fd-b4cd-67bee98c5964/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2023-12-02 17:53:56,366 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2023-12-02 17:53:56,366 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-02 17:53:56,370 INFO L262 TraceCheckSpWp]: Trace formula consists of 608 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-02 17:53:56,373 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 17:53:56,401 INFO L134 CoverageAnalysis]: Checked inductivity of 163 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 151 trivial. 0 not checked. [2023-12-02 17:53:56,401 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 17:53:56,443 INFO L134 CoverageAnalysis]: Checked inductivity of 163 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 151 trivial. 0 not checked. [2023-12-02 17:53:56,443 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1846404846] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 17:53:56,443 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [953603135] [2023-12-02 17:53:56,446 INFO L159 IcfgInterpreter]: Started Sifa with 22 locations of interest [2023-12-02 17:53:56,446 INFO L166 IcfgInterpreter]: Building call graph [2023-12-02 17:53:56,446 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-12-02 17:53:56,447 INFO L176 IcfgInterpreter]: Starting interpretation [2023-12-02 17:53:56,447 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-12-02 17:54:18,168 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 119 for LOIs [2023-12-02 17:54:18,194 INFO L180 IcfgInterpreter]: Interpretation finished [2023-12-02 17:54:24,154 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '30249#(and (= 21 |ULTIMATE.start_getopt32_~applet_opts#1.base|) (= |ULTIMATE.start_getopt32_#in~applet_opts#1.base| 21) (= ~opt_complementary~0.base 20) (= 0 (+ |ULTIMATE.start_getopt32_~max_arg~0#1| 1)) (= |ULTIMATE.start_getopt32_~spec_flgs~0#1| 0) (= |ULTIMATE.start_getopt32_~flags~0#1| 0) (= ~opt_complementary~0.offset 0) (<= 2147483647 |ULTIMATE.start_getopt32_~argc~0#1|) (= |ULTIMATE.start_getopt32_#varArgs#1.offset| 0) (= |ULTIMATE.start___main_#t~varargs246#1.offset| 0) (= |ULTIMATE.start_getopt32_~min_arg~0#1| 0) (= |ULTIMATE.start_getopt32_~applet_opts#1.offset| 0) (= 0 |ULTIMATE.start_getopt32_#in~applet_opts#1.offset|) (= |ULTIMATE.start___main_~status~1#1| 0) (= |ULTIMATE.start___main_~flags~1#1| 0) (= |ULTIMATE.start_getopt32_~#complementary~0#1.offset| 0) (= |ULTIMATE.start_getopt32_~requires~0#1| 0))' at error location [2023-12-02 17:54:24,154 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2023-12-02 17:54:24,154 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-02 17:54:24,154 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 8 [2023-12-02 17:54:24,154 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [836359675] [2023-12-02 17:54:24,154 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-02 17:54:24,155 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-02 17:54:24,155 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 17:54:24,155 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-02 17:54:24,155 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=475, Unknown=1, NotChecked=0, Total=552 [2023-12-02 17:54:24,156 INFO L87 Difference]: Start difference. First operand 588 states and 784 transitions. Second operand has 9 states, 8 states have (on average 6.0) internal successors, (48), 9 states have internal predecessors, (48), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-12-02 17:54:25,126 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 17:54:25,126 INFO L93 Difference]: Finished difference Result 2009 states and 2776 transitions. [2023-12-02 17:54:25,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-02 17:54:25,127 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 6.0) internal successors, (48), 9 states have internal predecessors, (48), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 62 [2023-12-02 17:54:25,127 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 17:54:25,138 INFO L225 Difference]: With dead ends: 2009 [2023-12-02 17:54:25,138 INFO L226 Difference]: Without dead ends: 2008 [2023-12-02 17:54:25,139 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 188 GetRequests, 156 SyntacticMatches, 10 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 275 ImplicationChecksByTransitivity, 6.0s TimeCoverageRelationStatistics Valid=76, Invalid=475, Unknown=1, NotChecked=0, Total=552 [2023-12-02 17:54:25,140 INFO L413 NwaCegarLoop]: 599 mSDtfsCounter, 2578 mSDsluCounter, 3094 mSDsCounter, 0 mSdLazyCounter, 659 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2626 SdHoareTripleChecker+Valid, 3693 SdHoareTripleChecker+Invalid, 690 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 659 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-02 17:54:25,140 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2626 Valid, 3693 Invalid, 690 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 659 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-02 17:54:25,143 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2008 states. [2023-12-02 17:54:25,190 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2008 to 604. [2023-12-02 17:54:25,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 604 states, 477 states have (on average 1.4758909853249476) internal successors, (704), 542 states have internal predecessors, (704), 53 states have call successors, (53), 16 states have call predecessors, (53), 15 states have return successors, (47), 47 states have call predecessors, (47), 47 states have call successors, (47) [2023-12-02 17:54:25,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 604 states to 604 states and 804 transitions. [2023-12-02 17:54:25,194 INFO L78 Accepts]: Start accepts. Automaton has 604 states and 804 transitions. Word has length 62 [2023-12-02 17:54:25,194 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 17:54:25,194 INFO L495 AbstractCegarLoop]: Abstraction has 604 states and 804 transitions. [2023-12-02 17:54:25,194 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 6.0) internal successors, (48), 9 states have internal predecessors, (48), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-12-02 17:54:25,195 INFO L276 IsEmpty]: Start isEmpty. Operand 604 states and 804 transitions. [2023-12-02 17:54:25,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2023-12-02 17:54:25,196 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 17:54:25,196 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 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] [2023-12-02 17:54:25,206 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67d62541-d915-40fd-b4cd-67bee98c5964/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2023-12-02 17:54:25,396 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67d62541-d915-40fd-b4cd-67bee98c5964/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 17:54:25,396 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW === [vasprintfErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, vasprintfErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, remove_fileErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 67 more)] === [2023-12-02 17:54:25,397 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 17:54:25,397 INFO L85 PathProgramCache]: Analyzing trace with hash -1837447167, now seen corresponding path program 1 times [2023-12-02 17:54:25,397 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 17:54:25,397 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1983166651] [2023-12-02 17:54:25,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 17:54:25,397 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 17:54:25,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 17:54:25,580 INFO L134 CoverageAnalysis]: Checked inductivity of 151 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 151 trivial. 0 not checked. [2023-12-02 17:54:25,580 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 17:54:25,581 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1983166651] [2023-12-02 17:54:25,581 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1983166651] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 17:54:25,581 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 17:54:25,581 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-02 17:54:25,581 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [620895828] [2023-12-02 17:54:25,581 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 17:54:25,581 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 17:54:25,582 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 17:54:25,582 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 17:54:25,582 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 17:54:25,582 INFO L87 Difference]: Start difference. First operand 604 states and 804 transitions. Second operand has 3 states, 2 states have (on average 18.0) internal successors, (36), 3 states have internal predecessors, (36), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-12-02 17:54:25,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 17:54:25,983 INFO L93 Difference]: Finished difference Result 1091 states and 1480 transitions. [2023-12-02 17:54:25,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 17:54:25,984 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 18.0) internal successors, (36), 3 states have internal predecessors, (36), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 70 [2023-12-02 17:54:25,984 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 17:54:25,988 INFO L225 Difference]: With dead ends: 1091 [2023-12-02 17:54:25,988 INFO L226 Difference]: Without dead ends: 655 [2023-12-02 17:54:25,990 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 17:54:25,991 INFO L413 NwaCegarLoop]: 648 mSDtfsCounter, 76 mSDsluCounter, 559 mSDsCounter, 0 mSdLazyCounter, 228 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 79 SdHoareTripleChecker+Valid, 1207 SdHoareTripleChecker+Invalid, 238 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 228 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-02 17:54:25,991 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [79 Valid, 1207 Invalid, 238 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 228 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-02 17:54:25,993 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 655 states. [2023-12-02 17:54:26,018 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 655 to 606. [2023-12-02 17:54:26,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 606 states, 481 states have (on average 1.4698544698544698) internal successors, (707), 544 states have internal predecessors, (707), 53 states have call successors, (53), 16 states have call predecessors, (53), 15 states have return successors, (47), 47 states have call predecessors, (47), 47 states have call successors, (47) [2023-12-02 17:54:26,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 606 states to 606 states and 807 transitions. [2023-12-02 17:54:26,022 INFO L78 Accepts]: Start accepts. Automaton has 606 states and 807 transitions. Word has length 70 [2023-12-02 17:54:26,022 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 17:54:26,022 INFO L495 AbstractCegarLoop]: Abstraction has 606 states and 807 transitions. [2023-12-02 17:54:26,023 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 18.0) internal successors, (36), 3 states have internal predecessors, (36), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-12-02 17:54:26,023 INFO L276 IsEmpty]: Start isEmpty. Operand 606 states and 807 transitions. [2023-12-02 17:54:26,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2023-12-02 17:54:26,023 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 17:54:26,023 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 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] [2023-12-02 17:54:26,023 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2023-12-02 17:54:26,024 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW === [vasprintfErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, vasprintfErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, remove_fileErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 67 more)] === [2023-12-02 17:54:26,024 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 17:54:26,024 INFO L85 PathProgramCache]: Analyzing trace with hash -1836814676, now seen corresponding path program 1 times [2023-12-02 17:54:26,024 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 17:54:26,024 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [770683171] [2023-12-02 17:54:26,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 17:54:26,024 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 17:54:26,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 17:54:26,218 INFO L134 CoverageAnalysis]: Checked inductivity of 151 backedges. 1 proven. 5 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2023-12-02 17:54:26,218 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 17:54:26,218 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [770683171] [2023-12-02 17:54:26,219 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [770683171] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 17:54:26,219 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [304182499] [2023-12-02 17:54:26,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 17:54:26,219 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 17:54:26,219 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67d62541-d915-40fd-b4cd-67bee98c5964/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 17:54:26,220 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67d62541-d915-40fd-b4cd-67bee98c5964/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 17:54:26,222 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67d62541-d915-40fd-b4cd-67bee98c5964/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2023-12-02 17:54:26,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 17:54:26,686 INFO L262 TraceCheckSpWp]: Trace formula consists of 833 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-02 17:54:26,689 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 17:54:26,708 INFO L134 CoverageAnalysis]: Checked inductivity of 151 backedges. 1 proven. 5 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2023-12-02 17:54:26,708 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 17:54:26,746 INFO L134 CoverageAnalysis]: Checked inductivity of 151 backedges. 1 proven. 5 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2023-12-02 17:54:26,746 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [304182499] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 17:54:26,746 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [606367989] [2023-12-02 17:54:26,749 INFO L159 IcfgInterpreter]: Started Sifa with 38 locations of interest [2023-12-02 17:54:26,750 INFO L166 IcfgInterpreter]: Building call graph [2023-12-02 17:54:26,750 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-12-02 17:54:26,750 INFO L176 IcfgInterpreter]: Starting interpretation [2023-12-02 17:54:26,750 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-12-02 17:54:43,361 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 119 for LOIs [2023-12-02 17:54:43,418 INFO L197 IcfgInterpreter]: Interpreting procedure #Ultimate.C_memset with input of size 63 for LOIs [2023-12-02 17:54:43,429 INFO L180 IcfgInterpreter]: Interpretation finished [2023-12-02 17:54:46,764 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [606367989] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 17:54:46,764 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2023-12-02 17:54:46,765 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [5, 5, 5] total 25 [2023-12-02 17:54:46,765 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [763143378] [2023-12-02 17:54:46,765 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 17:54:46,765 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2023-12-02 17:54:46,766 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 17:54:46,766 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2023-12-02 17:54:46,766 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=518, Unknown=1, NotChecked=0, Total=600 [2023-12-02 17:54:46,766 INFO L87 Difference]: Start difference. First operand 606 states and 807 transitions. Second operand has 18 states, 15 states have (on average 2.4) internal successors, (36), 16 states have internal predecessors, (36), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-12-02 17:54:54,100 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 17:54:56,689 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 17:55:01,033 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 17:55:01,033 INFO L93 Difference]: Finished difference Result 1136 states and 1530 transitions. [2023-12-02 17:55:01,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-12-02 17:55:01,034 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 15 states have (on average 2.4) internal successors, (36), 16 states have internal predecessors, (36), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 70 [2023-12-02 17:55:01,034 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 17:55:01,037 INFO L225 Difference]: With dead ends: 1136 [2023-12-02 17:55:01,037 INFO L226 Difference]: Without dead ends: 611 [2023-12-02 17:55:01,038 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 216 GetRequests, 180 SyntacticMatches, 10 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 331 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=97, Invalid=658, Unknown=1, NotChecked=0, Total=756 [2023-12-02 17:55:01,039 INFO L413 NwaCegarLoop]: 583 mSDtfsCounter, 10 mSDsluCounter, 4835 mSDsCounter, 0 mSdLazyCounter, 2132 mSolverCounterSat, 5 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 5418 SdHoareTripleChecker+Invalid, 2139 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 2132 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.8s IncrementalHoareTripleChecker+Time [2023-12-02 17:55:01,039 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 5418 Invalid, 2139 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [5 Valid, 2132 Invalid, 2 Unknown, 0 Unchecked, 13.8s Time] [2023-12-02 17:55:01,040 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 611 states. [2023-12-02 17:55:01,065 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 611 to 610. [2023-12-02 17:55:01,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 610 states, 484 states have (on average 1.4669421487603307) internal successors, (710), 547 states have internal predecessors, (710), 54 states have call successors, (54), 17 states have call predecessors, (54), 15 states have return successors, (48), 47 states have call predecessors, (48), 48 states have call successors, (48) [2023-12-02 17:55:01,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 610 states to 610 states and 812 transitions. [2023-12-02 17:55:01,067 INFO L78 Accepts]: Start accepts. Automaton has 610 states and 812 transitions. Word has length 70 [2023-12-02 17:55:01,067 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 17:55:01,067 INFO L495 AbstractCegarLoop]: Abstraction has 610 states and 812 transitions. [2023-12-02 17:55:01,068 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 15 states have (on average 2.4) internal successors, (36), 16 states have internal predecessors, (36), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-12-02 17:55:01,068 INFO L276 IsEmpty]: Start isEmpty. Operand 610 states and 812 transitions. [2023-12-02 17:55:01,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2023-12-02 17:55:01,068 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 17:55:01,068 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 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] [2023-12-02 17:55:01,075 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67d62541-d915-40fd-b4cd-67bee98c5964/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2023-12-02 17:55:01,269 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67d62541-d915-40fd-b4cd-67bee98c5964/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 17:55:01,269 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW === [vasprintfErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, vasprintfErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, remove_fileErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 67 more)] === [2023-12-02 17:55:01,269 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 17:55:01,269 INFO L85 PathProgramCache]: Analyzing trace with hash 343380612, now seen corresponding path program 1 times [2023-12-02 17:55:01,269 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 17:55:01,269 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [642645394] [2023-12-02 17:55:01,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 17:55:01,270 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 17:55:01,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 17:55:01,454 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 1 proven. 5 refuted. 0 times theorem prover too weak. 146 trivial. 0 not checked. [2023-12-02 17:55:01,454 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 17:55:01,454 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [642645394] [2023-12-02 17:55:01,455 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [642645394] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 17:55:01,455 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1698279366] [2023-12-02 17:55:01,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 17:55:01,455 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 17:55:01,455 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67d62541-d915-40fd-b4cd-67bee98c5964/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 17:55:01,456 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67d62541-d915-40fd-b4cd-67bee98c5964/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 17:55:01,459 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67d62541-d915-40fd-b4cd-67bee98c5964/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2023-12-02 17:55:01,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 17:55:01,875 INFO L262 TraceCheckSpWp]: Trace formula consists of 848 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-02 17:55:01,877 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 17:55:01,893 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 1 proven. 5 refuted. 0 times theorem prover too weak. 146 trivial. 0 not checked. [2023-12-02 17:55:01,893 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 17:55:01,926 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 1 proven. 5 refuted. 0 times theorem prover too weak. 146 trivial. 0 not checked. [2023-12-02 17:55:01,926 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1698279366] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 17:55:01,926 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1046805411] [2023-12-02 17:55:01,929 INFO L159 IcfgInterpreter]: Started Sifa with 38 locations of interest [2023-12-02 17:55:01,929 INFO L166 IcfgInterpreter]: Building call graph [2023-12-02 17:55:01,929 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-12-02 17:55:01,929 INFO L176 IcfgInterpreter]: Starting interpretation [2023-12-02 17:55:01,929 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-12-02 17:55:28,691 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 119 for LOIs [2023-12-02 17:55:28,717 INFO L197 IcfgInterpreter]: Interpreting procedure #Ultimate.C_memset with input of size 225 for LOIs [2023-12-02 17:55:29,496 INFO L180 IcfgInterpreter]: Interpretation finished [2023-12-02 17:55:54,452 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [1046805411] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 17:55:54,452 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2023-12-02 17:55:54,453 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [31] imperfect sequences [5, 5, 5] total 39 [2023-12-02 17:55:54,453 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1000384791] [2023-12-02 17:55:54,453 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 17:55:54,453 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2023-12-02 17:55:54,453 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 17:55:54,454 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2023-12-02 17:55:54,455 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=107, Invalid=1358, Unknown=17, NotChecked=0, Total=1482 [2023-12-02 17:55:54,455 INFO L87 Difference]: Start difference. First operand 610 states and 812 transitions. Second operand has 32 states, 27 states have (on average 1.3703703703703705) internal successors, (37), 29 states have internal predecessors, (37), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-12-02 17:55:57,372 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 17:56:04,688 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 17:56:22,811 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.21s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 17:56:25,151 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.89s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 17:56:26,943 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.79s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 17:56:34,307 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.34s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 17:56:44,068 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 17:56:44,068 INFO L93 Difference]: Finished difference Result 633 states and 843 transitions. [2023-12-02 17:56:44,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2023-12-02 17:56:44,069 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 27 states have (on average 1.3703703703703705) internal successors, (37), 29 states have internal predecessors, (37), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 71 [2023-12-02 17:56:44,069 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 17:56:44,072 INFO L225 Difference]: With dead ends: 633 [2023-12-02 17:56:44,072 INFO L226 Difference]: Without dead ends: 631 [2023-12-02 17:56:44,073 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 226 GetRequests, 172 SyntacticMatches, 11 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 594 ImplicationChecksByTransitivity, 27.9s TimeCoverageRelationStatistics Valid=140, Invalid=1822, Unknown=18, NotChecked=0, Total=1980 [2023-12-02 17:56:44,073 INFO L413 NwaCegarLoop]: 565 mSDtfsCounter, 25 mSDsluCounter, 12180 mSDsCounter, 0 mSdLazyCounter, 6489 mSolverCounterSat, 3 mSolverCounterUnsat, 17 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 45.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 12745 SdHoareTripleChecker+Invalid, 6509 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 6489 IncrementalHoareTripleChecker+Invalid, 17 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 46.4s IncrementalHoareTripleChecker+Time [2023-12-02 17:56:44,073 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 12745 Invalid, 6509 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3 Valid, 6489 Invalid, 17 Unknown, 0 Unchecked, 46.4s Time] [2023-12-02 17:56:44,075 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 631 states. [2023-12-02 17:56:44,118 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 631 to 626. [2023-12-02 17:56:44,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 626 states, 499 states have (on average 1.468937875751503) internal successors, (733), 562 states have internal predecessors, (733), 54 states have call successors, (54), 17 states have call predecessors, (54), 16 states have return successors, (48), 48 states have call predecessors, (48), 48 states have call successors, (48) [2023-12-02 17:56:44,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 626 states to 626 states and 835 transitions. [2023-12-02 17:56:44,121 INFO L78 Accepts]: Start accepts. Automaton has 626 states and 835 transitions. Word has length 71 [2023-12-02 17:56:44,121 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 17:56:44,121 INFO L495 AbstractCegarLoop]: Abstraction has 626 states and 835 transitions. [2023-12-02 17:56:44,122 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 27 states have (on average 1.3703703703703705) internal successors, (37), 29 states have internal predecessors, (37), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-12-02 17:56:44,122 INFO L276 IsEmpty]: Start isEmpty. Operand 626 states and 835 transitions. [2023-12-02 17:56:44,122 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2023-12-02 17:56:44,123 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 17:56:44,123 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 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] [2023-12-02 17:56:44,131 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67d62541-d915-40fd-b4cd-67bee98c5964/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Ended with exit code 0 [2023-12-02 17:56:44,323 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67d62541-d915-40fd-b4cd-67bee98c5964/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 17:56:44,323 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW === [vasprintfErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, vasprintfErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, remove_fileErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 67 more)] === [2023-12-02 17:56:44,324 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 17:56:44,324 INFO L85 PathProgramCache]: Analyzing trace with hash 2035258266, now seen corresponding path program 1 times [2023-12-02 17:56:44,324 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 17:56:44,324 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1238123051] [2023-12-02 17:56:44,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 17:56:44,324 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 17:56:44,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 17:56:44,469 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 152 trivial. 0 not checked. [2023-12-02 17:56:44,469 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 17:56:44,469 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1238123051] [2023-12-02 17:56:44,469 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1238123051] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 17:56:44,469 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 17:56:44,470 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-02 17:56:44,470 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1313106394] [2023-12-02 17:56:44,470 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 17:56:44,470 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 17:56:44,470 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 17:56:44,471 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 17:56:44,471 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 17:56:44,471 INFO L87 Difference]: Start difference. First operand 626 states and 835 transitions. Second operand has 3 states, 2 states have (on average 19.0) internal successors, (38), 3 states have internal predecessors, (38), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-12-02 17:56:44,924 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 17:56:44,924 INFO L93 Difference]: Finished difference Result 1120 states and 1520 transitions. [2023-12-02 17:56:44,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 17:56:44,925 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 19.0) internal successors, (38), 3 states have internal predecessors, (38), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 72 [2023-12-02 17:56:44,925 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 17:56:44,928 INFO L225 Difference]: With dead ends: 1120 [2023-12-02 17:56:44,929 INFO L226 Difference]: Without dead ends: 680 [2023-12-02 17:56:44,930 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 17:56:44,930 INFO L413 NwaCegarLoop]: 620 mSDtfsCounter, 154 mSDsluCounter, 518 mSDsCounter, 0 mSdLazyCounter, 208 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 160 SdHoareTripleChecker+Valid, 1138 SdHoareTripleChecker+Invalid, 223 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 208 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-02 17:56:44,930 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [160 Valid, 1138 Invalid, 223 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 208 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-02 17:56:44,931 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 680 states. [2023-12-02 17:56:44,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 680 to 621. [2023-12-02 17:56:44,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 621 states, 498 states have (on average 1.461847389558233) internal successors, (728), 557 states have internal predecessors, (728), 54 states have call successors, (54), 17 states have call predecessors, (54), 16 states have return successors, (48), 48 states have call predecessors, (48), 48 states have call successors, (48) [2023-12-02 17:56:44,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 621 states to 621 states and 830 transitions. [2023-12-02 17:56:44,977 INFO L78 Accepts]: Start accepts. Automaton has 621 states and 830 transitions. Word has length 72 [2023-12-02 17:56:44,977 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 17:56:44,977 INFO L495 AbstractCegarLoop]: Abstraction has 621 states and 830 transitions. [2023-12-02 17:56:44,977 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 19.0) internal successors, (38), 3 states have internal predecessors, (38), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-12-02 17:56:44,978 INFO L276 IsEmpty]: Start isEmpty. Operand 621 states and 830 transitions. [2023-12-02 17:56:44,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2023-12-02 17:56:44,978 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 17:56:44,979 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 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] [2023-12-02 17:56:44,979 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2023-12-02 17:56:44,979 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [vasprintfErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, vasprintfErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, remove_fileErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 67 more)] === [2023-12-02 17:56:44,979 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 17:56:44,979 INFO L85 PathProgramCache]: Analyzing trace with hash 805973078, now seen corresponding path program 1 times [2023-12-02 17:56:44,979 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 17:56:44,979 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1926732863] [2023-12-02 17:56:44,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 17:56:44,980 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 17:56:45,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 17:56:45,241 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 152 trivial. 0 not checked. [2023-12-02 17:56:45,242 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 17:56:45,242 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1926732863] [2023-12-02 17:56:45,242 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1926732863] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 17:56:45,242 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1398320554] [2023-12-02 17:56:45,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 17:56:45,242 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 17:56:45,242 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67d62541-d915-40fd-b4cd-67bee98c5964/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 17:56:45,243 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67d62541-d915-40fd-b4cd-67bee98c5964/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 17:56:45,248 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67d62541-d915-40fd-b4cd-67bee98c5964/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2023-12-02 17:56:45,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 17:56:45,734 INFO L262 TraceCheckSpWp]: Trace formula consists of 882 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-02 17:56:45,737 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 17:56:45,765 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 1 proven. 5 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2023-12-02 17:56:45,765 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 17:56:45,802 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 1 proven. 5 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2023-12-02 17:56:45,802 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1398320554] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 17:56:45,802 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1959668208] [2023-12-02 17:56:45,805 INFO L159 IcfgInterpreter]: Started Sifa with 36 locations of interest [2023-12-02 17:56:45,805 INFO L166 IcfgInterpreter]: Building call graph [2023-12-02 17:56:45,805 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-12-02 17:56:45,805 INFO L176 IcfgInterpreter]: Starting interpretation [2023-12-02 17:56:45,805 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-12-02 17:57:11,094 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 119 for LOIs [2023-12-02 17:57:11,120 INFO L197 IcfgInterpreter]: Interpreting procedure #Ultimate.C_memset with input of size 148 for LOIs [2023-12-02 17:57:12,277 INFO L180 IcfgInterpreter]: Interpretation finished [2023-12-02 17:57:22,938 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [1959668208] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 17:57:22,938 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2023-12-02 17:57:22,938 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [27] imperfect sequences [4, 5, 5] total 38 [2023-12-02 17:57:22,938 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [414726191] [2023-12-02 17:57:22,939 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 17:57:22,939 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2023-12-02 17:57:22,939 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 17:57:22,940 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2023-12-02 17:57:22,940 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=123, Invalid=1283, Unknown=0, NotChecked=0, Total=1406 [2023-12-02 17:57:22,940 INFO L87 Difference]: Start difference. First operand 621 states and 830 transitions. Second operand has 29 states, 24 states have (on average 1.5) internal successors, (36), 25 states have internal predecessors, (36), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-12-02 17:57:25,896 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 17:57:27,780 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.65s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 17:57:37,201 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 17:57:43,533 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 17:57:43,533 INFO L93 Difference]: Finished difference Result 689 states and 920 transitions. [2023-12-02 17:57:43,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2023-12-02 17:57:43,534 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 24 states have (on average 1.5) internal successors, (36), 25 states have internal predecessors, (36), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 73 [2023-12-02 17:57:43,534 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 17:57:43,537 INFO L225 Difference]: With dead ends: 689 [2023-12-02 17:57:43,537 INFO L226 Difference]: Without dead ends: 686 [2023-12-02 17:57:43,537 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 223 GetRequests, 174 SyntacticMatches, 11 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 579 ImplicationChecksByTransitivity, 11.2s TimeCoverageRelationStatistics Valid=133, Invalid=1427, Unknown=0, NotChecked=0, Total=1560 [2023-12-02 17:57:43,538 INFO L413 NwaCegarLoop]: 558 mSDtfsCounter, 41 mSDsluCounter, 5957 mSDsCounter, 0 mSdLazyCounter, 3235 mSolverCounterSat, 7 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 19.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 6515 SdHoareTripleChecker+Invalid, 3247 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 3235 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 19.9s IncrementalHoareTripleChecker+Time [2023-12-02 17:57:43,538 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 6515 Invalid, 3247 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [7 Valid, 3235 Invalid, 5 Unknown, 0 Unchecked, 19.9s Time] [2023-12-02 17:57:43,539 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 686 states. [2023-12-02 17:57:43,574 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 686 to 636. [2023-12-02 17:57:43,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 636 states, 513 states have (on average 1.4580896686159843) internal successors, (748), 572 states have internal predecessors, (748), 54 states have call successors, (54), 17 states have call predecessors, (54), 16 states have return successors, (48), 48 states have call predecessors, (48), 48 states have call successors, (48) [2023-12-02 17:57:43,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 636 states to 636 states and 850 transitions. [2023-12-02 17:57:43,576 INFO L78 Accepts]: Start accepts. Automaton has 636 states and 850 transitions. Word has length 73 [2023-12-02 17:57:43,577 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 17:57:43,577 INFO L495 AbstractCegarLoop]: Abstraction has 636 states and 850 transitions. [2023-12-02 17:57:43,577 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 24 states have (on average 1.5) internal successors, (36), 25 states have internal predecessors, (36), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-12-02 17:57:43,577 INFO L276 IsEmpty]: Start isEmpty. Operand 636 states and 850 transitions. [2023-12-02 17:57:43,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2023-12-02 17:57:43,578 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 17:57:43,578 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 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] [2023-12-02 17:57:43,585 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67d62541-d915-40fd-b4cd-67bee98c5964/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Ended with exit code 0 [2023-12-02 17:57:43,778 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67d62541-d915-40fd-b4cd-67bee98c5964/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 17:57:43,778 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW === [vasprintfErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, vasprintfErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, remove_fileErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 67 more)] === [2023-12-02 17:57:43,778 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 17:57:43,779 INFO L85 PathProgramCache]: Analyzing trace with hash 1773446771, now seen corresponding path program 1 times [2023-12-02 17:57:43,779 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 17:57:43,779 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1514575950] [2023-12-02 17:57:43,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 17:57:43,779 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 17:57:43,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 17:57:43,948 INFO L134 CoverageAnalysis]: Checked inductivity of 153 backedges. 1 proven. 5 refuted. 0 times theorem prover too weak. 147 trivial. 0 not checked. [2023-12-02 17:57:43,948 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 17:57:43,948 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1514575950] [2023-12-02 17:57:43,948 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1514575950] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 17:57:43,949 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [66790560] [2023-12-02 17:57:43,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 17:57:43,949 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 17:57:43,949 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67d62541-d915-40fd-b4cd-67bee98c5964/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 17:57:43,950 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67d62541-d915-40fd-b4cd-67bee98c5964/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 17:57:43,952 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67d62541-d915-40fd-b4cd-67bee98c5964/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2023-12-02 17:57:44,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 17:57:44,421 INFO L262 TraceCheckSpWp]: Trace formula consists of 842 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-02 17:57:44,423 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 17:57:44,439 INFO L134 CoverageAnalysis]: Checked inductivity of 153 backedges. 1 proven. 5 refuted. 0 times theorem prover too weak. 147 trivial. 0 not checked. [2023-12-02 17:57:44,439 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 17:57:44,469 INFO L134 CoverageAnalysis]: Checked inductivity of 153 backedges. 1 proven. 5 refuted. 0 times theorem prover too weak. 147 trivial. 0 not checked. [2023-12-02 17:57:44,469 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [66790560] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 17:57:44,469 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1742368008] [2023-12-02 17:57:44,472 INFO L159 IcfgInterpreter]: Started Sifa with 40 locations of interest [2023-12-02 17:57:44,472 INFO L166 IcfgInterpreter]: Building call graph [2023-12-02 17:57:44,472 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-12-02 17:57:44,472 INFO L176 IcfgInterpreter]: Starting interpretation [2023-12-02 17:57:44,472 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-12-02 17:57:58,994 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 119 for LOIs [2023-12-02 17:57:59,020 INFO L197 IcfgInterpreter]: Interpreting procedure #Ultimate.C_memset with input of size 223 for LOIs [2023-12-02 17:57:59,554 INFO L180 IcfgInterpreter]: Interpretation finished [2023-12-02 17:58:12,442 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [1742368008] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 17:58:12,442 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2023-12-02 17:58:12,442 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [5, 5, 5] total 27 [2023-12-02 17:58:12,442 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [893135894] [2023-12-02 17:58:12,442 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 17:58:12,442 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2023-12-02 17:58:12,443 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 17:58:12,443 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2023-12-02 17:58:12,443 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=92, Invalid=609, Unknown=1, NotChecked=0, Total=702 [2023-12-02 17:58:12,443 INFO L87 Difference]: Start difference. First operand 636 states and 850 transitions. Second operand has 20 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 17 states have internal predecessors, (39), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-12-02 17:58:24,197 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.48s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 17:58:28,765 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 17:58:28,765 INFO L93 Difference]: Finished difference Result 1158 states and 1564 transitions. [2023-12-02 17:58:28,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-12-02 17:58:28,765 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 17 states have internal predecessors, (39), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 74 [2023-12-02 17:58:28,766 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 17:58:28,768 INFO L225 Difference]: With dead ends: 1158 [2023-12-02 17:58:28,768 INFO L226 Difference]: Without dead ends: 638 [2023-12-02 17:58:28,769 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 227 GetRequests, 191 SyntacticMatches, 10 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 362 ImplicationChecksByTransitivity, 13.2s TimeCoverageRelationStatistics Valid=98, Invalid=657, Unknown=1, NotChecked=0, Total=756 [2023-12-02 17:58:28,770 INFO L413 NwaCegarLoop]: 578 mSDtfsCounter, 7 mSDsluCounter, 4537 mSDsCounter, 0 mSdLazyCounter, 2396 mSolverCounterSat, 4 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 5115 SdHoareTripleChecker+Invalid, 2401 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 2396 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.9s IncrementalHoareTripleChecker+Time [2023-12-02 17:58:28,770 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 5115 Invalid, 2401 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 2396 Invalid, 1 Unknown, 0 Unchecked, 15.9s Time] [2023-12-02 17:58:28,771 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 638 states. [2023-12-02 17:58:28,816 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 638 to 638. [2023-12-02 17:58:28,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 638 states, 515 states have (on average 1.4563106796116505) internal successors, (750), 573 states have internal predecessors, (750), 54 states have call successors, (54), 18 states have call predecessors, (54), 16 states have return successors, (48), 48 states have call predecessors, (48), 48 states have call successors, (48) [2023-12-02 17:58:28,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 638 states to 638 states and 852 transitions. [2023-12-02 17:58:28,819 INFO L78 Accepts]: Start accepts. Automaton has 638 states and 852 transitions. Word has length 74 [2023-12-02 17:58:28,819 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 17:58:28,819 INFO L495 AbstractCegarLoop]: Abstraction has 638 states and 852 transitions. [2023-12-02 17:58:28,819 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 17 states have internal predecessors, (39), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-12-02 17:58:28,819 INFO L276 IsEmpty]: Start isEmpty. Operand 638 states and 852 transitions. [2023-12-02 17:58:28,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2023-12-02 17:58:28,820 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 17:58:28,820 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 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] [2023-12-02 17:58:28,827 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67d62541-d915-40fd-b4cd-67bee98c5964/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Ended with exit code 0 [2023-12-02 17:58:29,021 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24,20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67d62541-d915-40fd-b4cd-67bee98c5964/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 17:58:29,021 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW === [vasprintfErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, vasprintfErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, remove_fileErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 67 more)] === [2023-12-02 17:58:29,021 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 17:58:29,021 INFO L85 PathProgramCache]: Analyzing trace with hash 611342167, now seen corresponding path program 1 times [2023-12-02 17:58:29,021 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 17:58:29,022 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1019713981] [2023-12-02 17:58:29,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 17:58:29,022 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 17:58:29,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 17:58:29,268 INFO L134 CoverageAnalysis]: Checked inductivity of 155 backedges. 1 proven. 5 refuted. 0 times theorem prover too weak. 149 trivial. 0 not checked. [2023-12-02 17:58:29,269 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 17:58:29,269 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1019713981] [2023-12-02 17:58:29,269 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1019713981] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 17:58:29,269 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [619697168] [2023-12-02 17:58:29,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 17:58:29,270 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 17:58:29,270 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67d62541-d915-40fd-b4cd-67bee98c5964/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 17:58:29,271 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67d62541-d915-40fd-b4cd-67bee98c5964/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 17:58:29,273 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67d62541-d915-40fd-b4cd-67bee98c5964/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2023-12-02 17:58:29,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 17:58:29,763 INFO L262 TraceCheckSpWp]: Trace formula consists of 858 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-02 17:58:29,765 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 17:58:29,781 INFO L134 CoverageAnalysis]: Checked inductivity of 155 backedges. 1 proven. 5 refuted. 0 times theorem prover too weak. 149 trivial. 0 not checked. [2023-12-02 17:58:29,781 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 17:58:29,816 INFO L134 CoverageAnalysis]: Checked inductivity of 155 backedges. 1 proven. 5 refuted. 0 times theorem prover too weak. 149 trivial. 0 not checked. [2023-12-02 17:58:29,817 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [619697168] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 17:58:29,817 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1126181557] [2023-12-02 17:58:29,818 INFO L159 IcfgInterpreter]: Started Sifa with 39 locations of interest [2023-12-02 17:58:29,818 INFO L166 IcfgInterpreter]: Building call graph [2023-12-02 17:58:29,819 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-12-02 17:58:29,819 INFO L176 IcfgInterpreter]: Starting interpretation [2023-12-02 17:58:29,819 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-12-02 17:58:49,528 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 119 for LOIs [2023-12-02 17:58:49,555 INFO L197 IcfgInterpreter]: Interpreting procedure #Ultimate.C_memset with input of size 148 for LOIs [2023-12-02 17:58:50,712 INFO L180 IcfgInterpreter]: Interpretation finished [2023-12-02 17:59:05,793 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [1126181557] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 17:59:05,793 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2023-12-02 17:59:05,793 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [5, 5, 5] total 36 [2023-12-02 17:59:05,794 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [894222166] [2023-12-02 17:59:05,794 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 17:59:05,794 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2023-12-02 17:59:05,794 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 17:59:05,795 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2023-12-02 17:59:05,795 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=114, Invalid=1145, Unknown=1, NotChecked=0, Total=1260 [2023-12-02 17:59:05,796 INFO L87 Difference]: Start difference. First operand 638 states and 852 transitions. Second operand has 29 states, 24 states have (on average 1.625) internal successors, (39), 26 states have internal predecessors, (39), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-12-02 17:59:09,223 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 17:59:11,029 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.38s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 17:59:24,585 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 17:59:33,498 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 17:59:33,499 INFO L93 Difference]: Finished difference Result 1114 states and 1508 transitions. [2023-12-02 17:59:33,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2023-12-02 17:59:33,499 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 24 states have (on average 1.625) internal successors, (39), 26 states have internal predecessors, (39), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 75 [2023-12-02 17:59:33,499 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 17:59:33,502 INFO L225 Difference]: With dead ends: 1114 [2023-12-02 17:59:33,502 INFO L226 Difference]: Without dead ends: 637 [2023-12-02 17:59:33,504 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 230 GetRequests, 181 SyntacticMatches, 13 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 636 ImplicationChecksByTransitivity, 15.7s TimeCoverageRelationStatistics Valid=124, Invalid=1281, Unknown=1, NotChecked=0, Total=1406 [2023-12-02 17:59:33,504 INFO L413 NwaCegarLoop]: 560 mSDtfsCounter, 195 mSDsluCounter, 7640 mSDsCounter, 0 mSdLazyCounter, 3876 mSolverCounterSat, 4 mSolverCounterUnsat, 9 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 25.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 201 SdHoareTripleChecker+Valid, 8200 SdHoareTripleChecker+Invalid, 3889 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 3876 IncrementalHoareTripleChecker+Invalid, 9 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 26.9s IncrementalHoareTripleChecker+Time [2023-12-02 17:59:33,504 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [201 Valid, 8200 Invalid, 3889 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4 Valid, 3876 Invalid, 9 Unknown, 0 Unchecked, 26.9s Time] [2023-12-02 17:59:33,506 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 637 states. [2023-12-02 17:59:33,556 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 637 to 627. [2023-12-02 17:59:33,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 627 states, 506 states have (on average 1.448616600790514) internal successors, (733), 562 states have internal predecessors, (733), 54 states have call successors, (54), 18 states have call predecessors, (54), 16 states have return successors, (48), 48 states have call predecessors, (48), 48 states have call successors, (48) [2023-12-02 17:59:33,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 627 states to 627 states and 835 transitions. [2023-12-02 17:59:33,558 INFO L78 Accepts]: Start accepts. Automaton has 627 states and 835 transitions. Word has length 75 [2023-12-02 17:59:33,558 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 17:59:33,558 INFO L495 AbstractCegarLoop]: Abstraction has 627 states and 835 transitions. [2023-12-02 17:59:33,558 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 24 states have (on average 1.625) internal successors, (39), 26 states have internal predecessors, (39), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-12-02 17:59:33,558 INFO L276 IsEmpty]: Start isEmpty. Operand 627 states and 835 transitions. [2023-12-02 17:59:33,559 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2023-12-02 17:59:33,559 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 17:59:33,559 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 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] [2023-12-02 17:59:33,566 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67d62541-d915-40fd-b4cd-67bee98c5964/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Ended with exit code 0 [2023-12-02 17:59:33,760 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67d62541-d915-40fd-b4cd-67bee98c5964/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2023-12-02 17:59:33,760 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [vasprintfErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, vasprintfErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, remove_fileErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 67 more)] === [2023-12-02 17:59:33,760 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 17:59:33,760 INFO L85 PathProgramCache]: Analyzing trace with hash 1447408740, now seen corresponding path program 1 times [2023-12-02 17:59:33,760 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 17:59:33,760 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1238774333] [2023-12-02 17:59:33,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 17:59:33,761 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 17:59:33,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 17:59:33,945 INFO L134 CoverageAnalysis]: Checked inductivity of 158 backedges. 1 proven. 5 refuted. 0 times theorem prover too weak. 152 trivial. 0 not checked. [2023-12-02 17:59:33,945 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 17:59:33,945 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1238774333] [2023-12-02 17:59:33,946 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1238774333] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 17:59:33,946 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1511937938] [2023-12-02 17:59:33,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 17:59:33,946 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 17:59:33,946 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67d62541-d915-40fd-b4cd-67bee98c5964/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 17:59:33,947 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67d62541-d915-40fd-b4cd-67bee98c5964/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 17:59:33,949 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67d62541-d915-40fd-b4cd-67bee98c5964/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2023-12-02 17:59:34,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 17:59:34,475 INFO L262 TraceCheckSpWp]: Trace formula consists of 886 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-02 17:59:34,477 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 17:59:34,495 INFO L134 CoverageAnalysis]: Checked inductivity of 158 backedges. 1 proven. 5 refuted. 0 times theorem prover too weak. 152 trivial. 0 not checked. [2023-12-02 17:59:34,495 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 17:59:34,535 INFO L134 CoverageAnalysis]: Checked inductivity of 158 backedges. 1 proven. 5 refuted. 0 times theorem prover too weak. 152 trivial. 0 not checked. [2023-12-02 17:59:34,536 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1511937938] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 17:59:34,536 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1545092785] [2023-12-02 17:59:34,538 INFO L159 IcfgInterpreter]: Started Sifa with 36 locations of interest [2023-12-02 17:59:34,538 INFO L166 IcfgInterpreter]: Building call graph [2023-12-02 17:59:34,538 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-12-02 17:59:34,538 INFO L176 IcfgInterpreter]: Starting interpretation [2023-12-02 17:59:34,539 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-12-02 18:00:01,394 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 119 for LOIs [2023-12-02 18:00:01,420 INFO L197 IcfgInterpreter]: Interpreting procedure #Ultimate.C_memset with input of size 225 for LOIs [2023-12-02 18:00:02,305 INFO L180 IcfgInterpreter]: Interpretation finished [2023-12-02 18:00:17,161 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '49822#(and (= 21 |ULTIMATE.start_getopt32_~applet_opts#1.base|) (exists ((|v_#memory_int_896| (Array Int (Array Int Int)))) (= |#memory_int| (store |v_#memory_int_896| |ULTIMATE.start_getopt32_~on_off~0#1.base| (store (select |v_#memory_int_896| |ULTIMATE.start_getopt32_~on_off~0#1.base|) |ULTIMATE.start_getopt32_~on_off~0#1.offset| (select (select |v_#memory_int_896| 21) |ULTIMATE.start_getopt32_~s~0#1.offset|))))) (exists ((|v_#memory_$Pointer$.base_698| (Array Int (Array Int Int)))) (= (store |v_#memory_$Pointer$.base_698| |ULTIMATE.start_getopt32_~on_off~0#1.base| (store (select |v_#memory_$Pointer$.base_698| |ULTIMATE.start_getopt32_~on_off~0#1.base|) |ULTIMATE.start_getopt32_~on_off~0#1.offset| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_getopt32_~on_off~0#1.base|) |ULTIMATE.start_getopt32_~on_off~0#1.offset|))) |#memory_$Pointer$.base|)) (= |ULTIMATE.start_getopt32_~p~3#1.offset| 0) (= |ULTIMATE.start_getopt32_#in~applet_opts#1.base| 21) (= ~opt_complementary~0.base 20) (<= |ULTIMATE.start_getopt32_~c~0#1| 31) (= 0 (+ |ULTIMATE.start_getopt32_~max_arg~0#1| 1)) (<= 0 |ULTIMATE.start_getopt32_~applet_opts#1.offset|) (= |ULTIMATE.start_getopt32_~spec_flgs~0#1| 0) (<= 0 |ULTIMATE.start_getopt32_~s~0#1.offset|) (not (= |ULTIMATE.start_getopt32_~c~0#1| 0)) (= |ULTIMATE.start_getopt32_~flags~0#1| 0) (= ~opt_complementary~0.offset 0) (<= 2147483648 |ULTIMATE.start_getopt32_#t~nondet91#1|) (= |ULTIMATE.start_getopt32_#varArgs#1.offset| 0) (= |ULTIMATE.start___main_#t~varargs246#1.offset| 0) (<= 0 |ULTIMATE.start_getopt32_~c~0#1|) (= |ULTIMATE.start_getopt32_~s~0#1.base| 21) (= |ULTIMATE.start_getopt32_~min_arg~0#1| 0) (= 0 |ULTIMATE.start_getopt32_#in~applet_opts#1.offset|) (= |ULTIMATE.start___main_~status~1#1| 0) (<= 0 |ULTIMATE.start_getopt32_~on_off~0#1.offset|) (= |ULTIMATE.start___main_~flags~1#1| 0) (<= |ULTIMATE.start_getopt32_~applet_opts#1.offset| 1) (= |ULTIMATE.start_getopt32_~#complementary~0#1.offset| 0) (= |ULTIMATE.start_getopt32_~argc~0#1| 1) (= |ULTIMATE.start_getopt32_~requires~0#1| 0) (exists ((|v_#memory_$Pointer$.offset_694| (Array Int (Array Int Int)))) (= |#memory_$Pointer$.offset| (store |v_#memory_$Pointer$.offset_694| |ULTIMATE.start_getopt32_~on_off~0#1.base| (store (select |v_#memory_$Pointer$.offset_694| |ULTIMATE.start_getopt32_~on_off~0#1.base|) |ULTIMATE.start_getopt32_~on_off~0#1.offset| (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_getopt32_~on_off~0#1.base|) |ULTIMATE.start_getopt32_~on_off~0#1.offset|))))))' at error location [2023-12-02 18:00:17,162 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2023-12-02 18:00:17,162 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-02 18:00:17,162 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 9 [2023-12-02 18:00:17,162 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1277535377] [2023-12-02 18:00:17,162 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-02 18:00:17,162 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-02 18:00:17,162 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 18:00:17,163 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-02 18:00:17,163 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=120, Invalid=1206, Unknown=6, NotChecked=0, Total=1332 [2023-12-02 18:00:17,163 INFO L87 Difference]: Start difference. First operand 627 states and 835 transitions. Second operand has 9 states, 9 states have (on average 6.0) internal successors, (54), 9 states have internal predecessors, (54), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-12-02 18:00:17,956 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 18:00:17,956 INFO L93 Difference]: Finished difference Result 1226 states and 1645 transitions. [2023-12-02 18:00:17,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-02 18:00:17,957 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.0) internal successors, (54), 9 states have internal predecessors, (54), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 75 [2023-12-02 18:00:17,957 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 18:00:17,960 INFO L225 Difference]: With dead ends: 1226 [2023-12-02 18:00:17,960 INFO L226 Difference]: Without dead ends: 639 [2023-12-02 18:00:17,962 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 228 GetRequests, 181 SyntacticMatches, 12 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 554 ImplicationChecksByTransitivity, 14.9s TimeCoverageRelationStatistics Valid=120, Invalid=1206, Unknown=6, NotChecked=0, Total=1332 [2023-12-02 18:00:17,963 INFO L413 NwaCegarLoop]: 595 mSDtfsCounter, 4 mSDsluCounter, 2970 mSDsCounter, 0 mSdLazyCounter, 523 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 3565 SdHoareTripleChecker+Invalid, 525 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 523 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-02 18:00:17,963 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 3565 Invalid, 525 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 523 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-02 18:00:17,964 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 639 states. [2023-12-02 18:00:18,016 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 639 to 639. [2023-12-02 18:00:18,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 639 states, 518 states have (on average 1.4382239382239381) internal successors, (745), 574 states have internal predecessors, (745), 54 states have call successors, (54), 18 states have call predecessors, (54), 16 states have return successors, (48), 48 states have call predecessors, (48), 48 states have call successors, (48) [2023-12-02 18:00:18,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 639 states to 639 states and 847 transitions. [2023-12-02 18:00:18,018 INFO L78 Accepts]: Start accepts. Automaton has 639 states and 847 transitions. Word has length 75 [2023-12-02 18:00:18,018 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 18:00:18,018 INFO L495 AbstractCegarLoop]: Abstraction has 639 states and 847 transitions. [2023-12-02 18:00:18,018 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.0) internal successors, (54), 9 states have internal predecessors, (54), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-12-02 18:00:18,018 INFO L276 IsEmpty]: Start isEmpty. Operand 639 states and 847 transitions. [2023-12-02 18:00:18,019 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2023-12-02 18:00:18,019 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 18:00:18,019 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 6, 6, 6, 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] [2023-12-02 18:00:18,027 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67d62541-d915-40fd-b4cd-67bee98c5964/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Ended with exit code 0 [2023-12-02 18:00:18,219 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67d62541-d915-40fd-b4cd-67bee98c5964/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2023-12-02 18:00:18,220 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [vasprintfErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, vasprintfErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, remove_fileErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 67 more)] === [2023-12-02 18:00:18,220 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 18:00:18,220 INFO L85 PathProgramCache]: Analyzing trace with hash -879657756, now seen corresponding path program 2 times [2023-12-02 18:00:18,220 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 18:00:18,220 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [683284627] [2023-12-02 18:00:18,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 18:00:18,220 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 18:00:18,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 18:00:18,638 INFO L134 CoverageAnalysis]: Checked inductivity of 204 backedges. 1 proven. 51 refuted. 0 times theorem prover too weak. 152 trivial. 0 not checked. [2023-12-02 18:00:18,638 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 18:00:18,638 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [683284627] [2023-12-02 18:00:18,638 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [683284627] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 18:00:18,639 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [716874369] [2023-12-02 18:00:18,639 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-12-02 18:00:18,639 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 18:00:18,639 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67d62541-d915-40fd-b4cd-67bee98c5964/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 18:00:18,640 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67d62541-d915-40fd-b4cd-67bee98c5964/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 18:00:18,649 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67d62541-d915-40fd-b4cd-67bee98c5964/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2023-12-02 18:00:19,435 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2023-12-02 18:00:19,435 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-02 18:00:19,438 INFO L262 TraceCheckSpWp]: Trace formula consists of 677 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-02 18:00:19,440 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 18:00:19,482 INFO L134 CoverageAnalysis]: Checked inductivity of 204 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 203 trivial. 0 not checked. [2023-12-02 18:00:19,482 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 18:00:19,576 INFO L134 CoverageAnalysis]: Checked inductivity of 204 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 203 trivial. 0 not checked. [2023-12-02 18:00:19,576 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [716874369] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 18:00:19,576 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [879688026] [2023-12-02 18:00:19,578 INFO L159 IcfgInterpreter]: Started Sifa with 36 locations of interest [2023-12-02 18:00:19,578 INFO L166 IcfgInterpreter]: Building call graph [2023-12-02 18:00:19,578 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-12-02 18:00:19,578 INFO L176 IcfgInterpreter]: Starting interpretation [2023-12-02 18:00:19,578 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-12-02 18:00:47,486 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 119 for LOIs [2023-12-02 18:00:47,512 INFO L197 IcfgInterpreter]: Interpreting procedure #Ultimate.C_memset with input of size 148 for LOIs [2023-12-02 18:00:48,686 INFO L180 IcfgInterpreter]: Interpretation finished [2023-12-02 18:01:01,748 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '52648#(and (= 21 |ULTIMATE.start_getopt32_~applet_opts#1.base|) (= |ULTIMATE.start_getopt32_~p~3#1.offset| 0) (exists ((|v_#memory_$Pointer$.base_741| (Array Int (Array Int Int)))) (= |#memory_$Pointer$.base| (store |v_#memory_$Pointer$.base_741| |ULTIMATE.start_getopt32_~on_off~0#1.base| (store (select |v_#memory_$Pointer$.base_741| |ULTIMATE.start_getopt32_~on_off~0#1.base|) |ULTIMATE.start_getopt32_~on_off~0#1.offset| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_getopt32_~on_off~0#1.base|) |ULTIMATE.start_getopt32_~on_off~0#1.offset|))))) (= |ULTIMATE.start_getopt32_#in~applet_opts#1.base| 21) (exists ((|v_#memory_int_943| (Array Int (Array Int Int)))) (= |#memory_int| (store |v_#memory_int_943| |ULTIMATE.start_getopt32_~on_off~0#1.base| (store (select |v_#memory_int_943| |ULTIMATE.start_getopt32_~on_off~0#1.base|) |ULTIMATE.start_getopt32_~on_off~0#1.offset| (select (select |v_#memory_int_943| 21) |ULTIMATE.start_getopt32_~s~0#1.offset|))))) (= ~opt_complementary~0.base 20) (<= |ULTIMATE.start_getopt32_~c~0#1| 31) (exists ((|v_#memory_$Pointer$.offset_737| (Array Int (Array Int Int)))) (= |#memory_$Pointer$.offset| (store |v_#memory_$Pointer$.offset_737| |ULTIMATE.start_getopt32_~on_off~0#1.base| (store (select |v_#memory_$Pointer$.offset_737| |ULTIMATE.start_getopt32_~on_off~0#1.base|) |ULTIMATE.start_getopt32_~on_off~0#1.offset| (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_getopt32_~on_off~0#1.base|) |ULTIMATE.start_getopt32_~on_off~0#1.offset|))))) (= 0 (+ |ULTIMATE.start_getopt32_~max_arg~0#1| 1)) (<= 0 |ULTIMATE.start_getopt32_~applet_opts#1.offset|) (= |ULTIMATE.start_getopt32_~spec_flgs~0#1| 0) (<= 0 |ULTIMATE.start_getopt32_~s~0#1.offset|) (not (= |ULTIMATE.start_getopt32_~c~0#1| 0)) (= |ULTIMATE.start_getopt32_~flags~0#1| 0) (= ~opt_complementary~0.offset 0) (<= 2147483648 |ULTIMATE.start_getopt32_#t~nondet91#1|) (= |ULTIMATE.start_getopt32_#varArgs#1.offset| 0) (= |ULTIMATE.start___main_#t~varargs246#1.offset| 0) (<= 0 |ULTIMATE.start_getopt32_~c~0#1|) (= |ULTIMATE.start_getopt32_~s~0#1.base| 21) (= |ULTIMATE.start_getopt32_~min_arg~0#1| 0) (= 0 |ULTIMATE.start_getopt32_#in~applet_opts#1.offset|) (= |ULTIMATE.start___main_~status~1#1| 0) (<= 0 |ULTIMATE.start_getopt32_~on_off~0#1.offset|) (= |ULTIMATE.start___main_~flags~1#1| 0) (<= |ULTIMATE.start_getopt32_~applet_opts#1.offset| 1) (= |ULTIMATE.start_getopt32_~#complementary~0#1.offset| 0) (= |ULTIMATE.start_getopt32_~argc~0#1| 1) (= |ULTIMATE.start_getopt32_~requires~0#1| 0))' at error location [2023-12-02 18:01:01,748 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2023-12-02 18:01:01,748 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-02 18:01:01,748 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 5, 5] total 15 [2023-12-02 18:01:01,748 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [314828108] [2023-12-02 18:01:01,748 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-02 18:01:01,748 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-12-02 18:01:01,748 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 18:01:01,749 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-12-02 18:01:01,749 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=148, Invalid=1658, Unknown=0, NotChecked=0, Total=1806 [2023-12-02 18:01:01,749 INFO L87 Difference]: Start difference. First operand 639 states and 847 transitions. Second operand has 15 states, 13 states have (on average 5.230769230769231) internal successors, (68), 15 states have internal predecessors, (68), 2 states have call successors, (3), 1 states have call predecessors, (3), 3 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-12-02 18:01:03,232 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 18:01:03,232 INFO L93 Difference]: Finished difference Result 1259 states and 1691 transitions. [2023-12-02 18:01:03,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-12-02 18:01:03,233 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 13 states have (on average 5.230769230769231) internal successors, (68), 15 states have internal predecessors, (68), 2 states have call successors, (3), 1 states have call predecessors, (3), 3 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 87 [2023-12-02 18:01:03,233 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 18:01:03,238 INFO L225 Difference]: With dead ends: 1259 [2023-12-02 18:01:03,239 INFO L226 Difference]: Without dead ends: 658 [2023-12-02 18:01:03,241 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 273 GetRequests, 215 SyntacticMatches, 12 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 745 ImplicationChecksByTransitivity, 13.4s TimeCoverageRelationStatistics Valid=188, Invalid=2068, Unknown=0, NotChecked=0, Total=2256 [2023-12-02 18:01:03,241 INFO L413 NwaCegarLoop]: 593 mSDtfsCounter, 10 mSDsluCounter, 4139 mSDsCounter, 0 mSdLazyCounter, 793 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 4732 SdHoareTripleChecker+Invalid, 799 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 793 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-12-02 18:01:03,241 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 4732 Invalid, 799 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 793 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-12-02 18:01:03,243 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 658 states. [2023-12-02 18:01:03,301 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 658 to 652. [2023-12-02 18:01:03,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 652 states, 530 states have (on average 1.4377358490566037) internal successors, (762), 586 states have internal predecessors, (762), 54 states have call successors, (54), 19 states have call predecessors, (54), 17 states have return successors, (49), 48 states have call predecessors, (49), 48 states have call successors, (49) [2023-12-02 18:01:03,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 652 states to 652 states and 865 transitions. [2023-12-02 18:01:03,303 INFO L78 Accepts]: Start accepts. Automaton has 652 states and 865 transitions. Word has length 87 [2023-12-02 18:01:03,303 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 18:01:03,303 INFO L495 AbstractCegarLoop]: Abstraction has 652 states and 865 transitions. [2023-12-02 18:01:03,303 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 13 states have (on average 5.230769230769231) internal successors, (68), 15 states have internal predecessors, (68), 2 states have call successors, (3), 1 states have call predecessors, (3), 3 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-12-02 18:01:03,303 INFO L276 IsEmpty]: Start isEmpty. Operand 652 states and 865 transitions. [2023-12-02 18:01:03,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2023-12-02 18:01:03,304 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 18:01:03,304 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 7, 7, 7, 4, 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] [2023-12-02 18:01:03,312 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67d62541-d915-40fd-b4cd-67bee98c5964/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Ended with exit code 0 [2023-12-02 18:01:03,504 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67d62541-d915-40fd-b4cd-67bee98c5964/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2023-12-02 18:01:03,504 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [vasprintfErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, vasprintfErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, remove_fileErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 67 more)] === [2023-12-02 18:01:03,505 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 18:01:03,505 INFO L85 PathProgramCache]: Analyzing trace with hash -1255796586, now seen corresponding path program 3 times [2023-12-02 18:01:03,505 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 18:01:03,505 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [891958419] [2023-12-02 18:01:03,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 18:01:03,505 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 18:01:03,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 18:01:03,883 INFO L134 CoverageAnalysis]: Checked inductivity of 232 backedges. 1 proven. 70 refuted. 0 times theorem prover too weak. 161 trivial. 0 not checked. [2023-12-02 18:01:03,883 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 18:01:03,883 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [891958419] [2023-12-02 18:01:03,883 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [891958419] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 18:01:03,883 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1016264609] [2023-12-02 18:01:03,883 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-12-02 18:01:03,884 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 18:01:03,884 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67d62541-d915-40fd-b4cd-67bee98c5964/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 18:01:03,885 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67d62541-d915-40fd-b4cd-67bee98c5964/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 18:01:03,885 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67d62541-d915-40fd-b4cd-67bee98c5964/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2023-12-02 18:01:04,377 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-12-02 18:01:04,378 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-02 18:01:04,382 INFO L262 TraceCheckSpWp]: Trace formula consists of 1026 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-02 18:01:04,384 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 18:01:04,438 INFO L134 CoverageAnalysis]: Checked inductivity of 232 backedges. 1 proven. 70 refuted. 0 times theorem prover too weak. 161 trivial. 0 not checked. [2023-12-02 18:01:04,439 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 18:01:04,568 INFO L134 CoverageAnalysis]: Checked inductivity of 232 backedges. 1 proven. 70 refuted. 0 times theorem prover too weak. 161 trivial. 0 not checked. [2023-12-02 18:01:04,568 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1016264609] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 18:01:04,568 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [684028375] [2023-12-02 18:01:04,570 INFO L159 IcfgInterpreter]: Started Sifa with 36 locations of interest [2023-12-02 18:01:04,570 INFO L166 IcfgInterpreter]: Building call graph [2023-12-02 18:01:04,570 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-12-02 18:01:04,571 INFO L176 IcfgInterpreter]: Starting interpretation [2023-12-02 18:01:04,571 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-12-02 18:01:31,266 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 119 for LOIs [2023-12-02 18:01:31,297 INFO L197 IcfgInterpreter]: Interpreting procedure #Ultimate.C_memset with input of size 225 for LOIs [2023-12-02 18:01:32,203 INFO L180 IcfgInterpreter]: Interpretation finished [2023-12-02 18:01:48,575 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '55590#(and (exists ((|v_#memory_int_994| (Array Int (Array Int Int)))) (= |#memory_int| (store |v_#memory_int_994| |ULTIMATE.start_getopt32_~on_off~0#1.base| (store (select |v_#memory_int_994| |ULTIMATE.start_getopt32_~on_off~0#1.base|) |ULTIMATE.start_getopt32_~on_off~0#1.offset| (select (select |v_#memory_int_994| 21) |ULTIMATE.start_getopt32_~s~0#1.offset|))))) (= 21 |ULTIMATE.start_getopt32_~applet_opts#1.base|) (= |ULTIMATE.start_getopt32_~p~3#1.offset| 0) (= |ULTIMATE.start_getopt32_#in~applet_opts#1.base| 21) (= ~opt_complementary~0.base 20) (<= |ULTIMATE.start_getopt32_~c~0#1| 31) (= 0 (+ |ULTIMATE.start_getopt32_~max_arg~0#1| 1)) (<= 0 |ULTIMATE.start_getopt32_~applet_opts#1.offset|) (= |ULTIMATE.start_getopt32_~spec_flgs~0#1| 0) (<= 0 |ULTIMATE.start_getopt32_~s~0#1.offset|) (not (= |ULTIMATE.start_getopt32_~c~0#1| 0)) (= |ULTIMATE.start_getopt32_~flags~0#1| 0) (= ~opt_complementary~0.offset 0) (<= 2147483648 |ULTIMATE.start_getopt32_#t~nondet91#1|) (= |ULTIMATE.start_getopt32_#varArgs#1.offset| 0) (exists ((|v_#memory_$Pointer$.base_788| (Array Int (Array Int Int)))) (= (store |v_#memory_$Pointer$.base_788| |ULTIMATE.start_getopt32_~on_off~0#1.base| (store (select |v_#memory_$Pointer$.base_788| |ULTIMATE.start_getopt32_~on_off~0#1.base|) |ULTIMATE.start_getopt32_~on_off~0#1.offset| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_getopt32_~on_off~0#1.base|) |ULTIMATE.start_getopt32_~on_off~0#1.offset|))) |#memory_$Pointer$.base|)) (= |ULTIMATE.start___main_#t~varargs246#1.offset| 0) (<= 0 |ULTIMATE.start_getopt32_~c~0#1|) (= |ULTIMATE.start_getopt32_~s~0#1.base| 21) (= |ULTIMATE.start_getopt32_~min_arg~0#1| 0) (= 0 |ULTIMATE.start_getopt32_#in~applet_opts#1.offset|) (= |ULTIMATE.start___main_~status~1#1| 0) (<= 0 |ULTIMATE.start_getopt32_~on_off~0#1.offset|) (= |ULTIMATE.start___main_~flags~1#1| 0) (<= |ULTIMATE.start_getopt32_~applet_opts#1.offset| 1) (= |ULTIMATE.start_getopt32_~#complementary~0#1.offset| 0) (= |ULTIMATE.start_getopt32_~argc~0#1| 1) (= |ULTIMATE.start_getopt32_~requires~0#1| 0) (exists ((|v_#memory_$Pointer$.offset_784| (Array Int (Array Int Int)))) (= |#memory_$Pointer$.offset| (store |v_#memory_$Pointer$.offset_784| |ULTIMATE.start_getopt32_~on_off~0#1.base| (store (select |v_#memory_$Pointer$.offset_784| |ULTIMATE.start_getopt32_~on_off~0#1.base|) |ULTIMATE.start_getopt32_~on_off~0#1.offset| (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_getopt32_~on_off~0#1.base|) |ULTIMATE.start_getopt32_~on_off~0#1.offset|))))))' at error location [2023-12-02 18:01:48,575 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2023-12-02 18:01:48,575 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-02 18:01:48,575 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 13 [2023-12-02 18:01:48,575 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [100443183] [2023-12-02 18:01:48,576 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-02 18:01:48,576 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-12-02 18:01:48,576 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 18:01:48,577 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-12-02 18:01:48,577 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=162, Invalid=1472, Unknown=6, NotChecked=0, Total=1640 [2023-12-02 18:01:48,577 INFO L87 Difference]: Start difference. First operand 652 states and 865 transitions. Second operand has 13 states, 13 states have (on average 5.3076923076923075) internal successors, (69), 13 states have internal predecessors, (69), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-12-02 18:01:49,141 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 18:01:49,141 INFO L93 Difference]: Finished difference Result 1273 states and 1701 transitions. [2023-12-02 18:01:49,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-12-02 18:01:49,142 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 5.3076923076923075) internal successors, (69), 13 states have internal predecessors, (69), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 93 [2023-12-02 18:01:49,142 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 18:01:49,145 INFO L225 Difference]: With dead ends: 1273 [2023-12-02 18:01:49,145 INFO L226 Difference]: Without dead ends: 661 [2023-12-02 18:01:49,147 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 287 GetRequests, 230 SyntacticMatches, 18 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 721 ImplicationChecksByTransitivity, 16.5s TimeCoverageRelationStatistics Valid=162, Invalid=1472, Unknown=6, NotChecked=0, Total=1640 [2023-12-02 18:01:49,148 INFO L413 NwaCegarLoop]: 595 mSDtfsCounter, 2 mSDsluCounter, 1188 mSDsCounter, 0 mSdLazyCounter, 286 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 1783 SdHoareTripleChecker+Invalid, 287 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 286 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-02 18:01:49,148 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 1783 Invalid, 287 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 286 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-02 18:01:49,149 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 661 states. [2023-12-02 18:01:49,205 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 661 to 661. [2023-12-02 18:01:49,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 661 states, 539 states have (on average 1.4304267161410018) internal successors, (771), 595 states have internal predecessors, (771), 54 states have call successors, (54), 19 states have call predecessors, (54), 17 states have return successors, (49), 48 states have call predecessors, (49), 48 states have call successors, (49) [2023-12-02 18:01:49,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 661 states to 661 states and 874 transitions. [2023-12-02 18:01:49,207 INFO L78 Accepts]: Start accepts. Automaton has 661 states and 874 transitions. Word has length 93 [2023-12-02 18:01:49,208 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 18:01:49,208 INFO L495 AbstractCegarLoop]: Abstraction has 661 states and 874 transitions. [2023-12-02 18:01:49,208 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 5.3076923076923075) internal successors, (69), 13 states have internal predecessors, (69), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-12-02 18:01:49,208 INFO L276 IsEmpty]: Start isEmpty. Operand 661 states and 874 transitions. [2023-12-02 18:01:49,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2023-12-02 18:01:49,208 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 18:01:49,209 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 4, 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] [2023-12-02 18:01:49,216 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67d62541-d915-40fd-b4cd-67bee98c5964/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Ended with exit code 0 [2023-12-02 18:01:49,409 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67d62541-d915-40fd-b4cd-67bee98c5964/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2023-12-02 18:01:49,409 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [vasprintfErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, vasprintfErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, remove_fileErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 67 more)] === [2023-12-02 18:01:49,409 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 18:01:49,409 INFO L85 PathProgramCache]: Analyzing trace with hash 1205272972, now seen corresponding path program 4 times [2023-12-02 18:01:49,409 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 18:01:49,410 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [104691507] [2023-12-02 18:01:49,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 18:01:49,410 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 18:01:49,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 18:01:50,457 INFO L134 CoverageAnalysis]: Checked inductivity of 307 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 297 trivial. 0 not checked. [2023-12-02 18:01:50,457 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 18:01:50,457 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [104691507] [2023-12-02 18:01:50,457 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [104691507] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 18:01:50,457 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1877033367] [2023-12-02 18:01:50,457 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2023-12-02 18:01:50,457 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 18:01:50,458 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67d62541-d915-40fd-b4cd-67bee98c5964/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 18:01:50,459 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67d62541-d915-40fd-b4cd-67bee98c5964/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 18:01:50,472 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67d62541-d915-40fd-b4cd-67bee98c5964/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2023-12-02 18:01:51,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 18:01:51,441 INFO L262 TraceCheckSpWp]: Trace formula consists of 1083 conjuncts, 14 conjunts are in the unsatisfiable core [2023-12-02 18:01:51,443 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 18:01:51,557 INFO L134 CoverageAnalysis]: Checked inductivity of 307 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 297 trivial. 0 not checked. [2023-12-02 18:01:51,557 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 18:01:51,869 INFO L134 CoverageAnalysis]: Checked inductivity of 307 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 297 trivial. 0 not checked. [2023-12-02 18:01:51,870 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1877033367] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 18:01:51,870 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1531335243] [2023-12-02 18:01:51,871 INFO L159 IcfgInterpreter]: Started Sifa with 36 locations of interest [2023-12-02 18:01:51,872 INFO L166 IcfgInterpreter]: Building call graph [2023-12-02 18:01:51,872 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-12-02 18:01:51,872 INFO L176 IcfgInterpreter]: Starting interpretation [2023-12-02 18:01:51,872 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-12-02 18:02:21,467 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 119 for LOIs [2023-12-02 18:02:21,493 INFO L197 IcfgInterpreter]: Interpreting procedure #Ultimate.C_memset with input of size 225 for LOIs [2023-12-02 18:02:22,305 INFO L180 IcfgInterpreter]: Interpretation finished [2023-12-02 18:02:37,454 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '58618#(and (= 21 |ULTIMATE.start_getopt32_~applet_opts#1.base|) (= |ULTIMATE.start_getopt32_~p~3#1.offset| 0) (= |ULTIMATE.start_getopt32_#in~applet_opts#1.base| 21) (exists ((|v_#memory_$Pointer$.base_832| (Array Int (Array Int Int)))) (= (store |v_#memory_$Pointer$.base_832| |ULTIMATE.start_getopt32_~on_off~0#1.base| (store (select |v_#memory_$Pointer$.base_832| |ULTIMATE.start_getopt32_~on_off~0#1.base|) |ULTIMATE.start_getopt32_~on_off~0#1.offset| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_getopt32_~on_off~0#1.base|) |ULTIMATE.start_getopt32_~on_off~0#1.offset|))) |#memory_$Pointer$.base|)) (= ~opt_complementary~0.base 20) (<= |ULTIMATE.start_getopt32_~c~0#1| 31) (exists ((|v_#memory_int_1042| (Array Int (Array Int Int)))) (= |#memory_int| (store |v_#memory_int_1042| |ULTIMATE.start_getopt32_~on_off~0#1.base| (store (select |v_#memory_int_1042| |ULTIMATE.start_getopt32_~on_off~0#1.base|) |ULTIMATE.start_getopt32_~on_off~0#1.offset| (select (select |v_#memory_int_1042| 21) |ULTIMATE.start_getopt32_~s~0#1.offset|))))) (= 0 (+ |ULTIMATE.start_getopt32_~max_arg~0#1| 1)) (<= 0 |ULTIMATE.start_getopt32_~applet_opts#1.offset|) (= |ULTIMATE.start_getopt32_~spec_flgs~0#1| 0) (<= 0 |ULTIMATE.start_getopt32_~s~0#1.offset|) (not (= |ULTIMATE.start_getopt32_~c~0#1| 0)) (= |ULTIMATE.start_getopt32_~flags~0#1| 0) (= ~opt_complementary~0.offset 0) (<= 2147483648 |ULTIMATE.start_getopt32_#t~nondet91#1|) (= |ULTIMATE.start_getopt32_#varArgs#1.offset| 0) (= |ULTIMATE.start___main_#t~varargs246#1.offset| 0) (<= 0 |ULTIMATE.start_getopt32_~c~0#1|) (= |ULTIMATE.start_getopt32_~s~0#1.base| 21) (= |ULTIMATE.start_getopt32_~min_arg~0#1| 0) (= 0 |ULTIMATE.start_getopt32_#in~applet_opts#1.offset|) (= |ULTIMATE.start___main_~status~1#1| 0) (exists ((|v_#memory_$Pointer$.offset_828| (Array Int (Array Int Int)))) (= |#memory_$Pointer$.offset| (store |v_#memory_$Pointer$.offset_828| |ULTIMATE.start_getopt32_~on_off~0#1.base| (store (select |v_#memory_$Pointer$.offset_828| |ULTIMATE.start_getopt32_~on_off~0#1.base|) |ULTIMATE.start_getopt32_~on_off~0#1.offset| (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_getopt32_~on_off~0#1.base|) |ULTIMATE.start_getopt32_~on_off~0#1.offset|))))) (<= 0 |ULTIMATE.start_getopt32_~on_off~0#1.offset|) (= |ULTIMATE.start___main_~flags~1#1| 0) (<= |ULTIMATE.start_getopt32_~applet_opts#1.offset| 1) (= |ULTIMATE.start_getopt32_~#complementary~0#1.offset| 0) (= |ULTIMATE.start_getopt32_~argc~0#1| 1) (= |ULTIMATE.start_getopt32_~requires~0#1| 0))' at error location [2023-12-02 18:02:37,454 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2023-12-02 18:02:37,455 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-02 18:02:37,455 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 18 [2023-12-02 18:02:37,455 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [808663907] [2023-12-02 18:02:37,455 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-02 18:02:37,455 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2023-12-02 18:02:37,455 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 18:02:37,456 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2023-12-02 18:02:37,457 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=193, Invalid=1872, Unknown=5, NotChecked=0, Total=2070 [2023-12-02 18:02:37,457 INFO L87 Difference]: Start difference. First operand 661 states and 874 transitions. Second operand has 18 states, 16 states have (on average 3.125) internal successors, (50), 18 states have internal predecessors, (50), 1 states have call successors, (2), 1 states have call predecessors, (2), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2023-12-02 18:02:40,763 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 18:02:40,763 INFO L93 Difference]: Finished difference Result 1232 states and 1673 transitions. [2023-12-02 18:02:40,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-12-02 18:02:40,763 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 16 states have (on average 3.125) internal successors, (50), 18 states have internal predecessors, (50), 1 states have call successors, (2), 1 states have call predecessors, (2), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 102 [2023-12-02 18:02:40,764 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 18:02:40,769 INFO L225 Difference]: With dead ends: 1232 [2023-12-02 18:02:40,769 INFO L226 Difference]: Without dead ends: 684 [2023-12-02 18:02:40,773 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 324 GetRequests, 256 SyntacticMatches, 12 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 980 ImplicationChecksByTransitivity, 17.2s TimeCoverageRelationStatistics Valid=413, Invalid=2888, Unknown=5, NotChecked=0, Total=3306 [2023-12-02 18:02:40,773 INFO L413 NwaCegarLoop]: 595 mSDtfsCounter, 15 mSDsluCounter, 3546 mSDsCounter, 0 mSdLazyCounter, 791 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 4141 SdHoareTripleChecker+Invalid, 807 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 791 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2023-12-02 18:02:40,774 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 4141 Invalid, 807 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 791 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2023-12-02 18:02:40,775 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 684 states. [2023-12-02 18:02:40,866 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 684 to 680. [2023-12-02 18:02:40,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 680 states, 556 states have (on average 1.435251798561151) internal successors, (798), 614 states have internal predecessors, (798), 54 states have call successors, (54), 19 states have call predecessors, (54), 19 states have return successors, (52), 48 states have call predecessors, (52), 48 states have call successors, (52) [2023-12-02 18:02:40,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 680 states to 680 states and 904 transitions. [2023-12-02 18:02:40,868 INFO L78 Accepts]: Start accepts. Automaton has 680 states and 904 transitions. Word has length 102 [2023-12-02 18:02:40,869 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 18:02:40,869 INFO L495 AbstractCegarLoop]: Abstraction has 680 states and 904 transitions. [2023-12-02 18:02:40,869 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 16 states have (on average 3.125) internal successors, (50), 18 states have internal predecessors, (50), 1 states have call successors, (2), 1 states have call predecessors, (2), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2023-12-02 18:02:40,869 INFO L276 IsEmpty]: Start isEmpty. Operand 680 states and 904 transitions. [2023-12-02 18:02:40,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2023-12-02 18:02:40,869 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 18:02:40,869 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 7, 7, 7, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 18:02:40,879 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67d62541-d915-40fd-b4cd-67bee98c5964/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Ended with exit code 0 [2023-12-02 18:02:41,070 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67d62541-d915-40fd-b4cd-67bee98c5964/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 18:02:41,070 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [vasprintfErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, vasprintfErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, remove_fileErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 67 more)] === [2023-12-02 18:02:41,070 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 18:02:41,070 INFO L85 PathProgramCache]: Analyzing trace with hash -2138035995, now seen corresponding path program 3 times [2023-12-02 18:02:41,070 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 18:02:41,070 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1214272680] [2023-12-02 18:02:41,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 18:02:41,071 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 18:02:41,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 18:02:41,514 INFO L134 CoverageAnalysis]: Checked inductivity of 375 backedges. 0 proven. 84 refuted. 0 times theorem prover too weak. 291 trivial. 0 not checked. [2023-12-02 18:02:41,514 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 18:02:41,514 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1214272680] [2023-12-02 18:02:41,514 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1214272680] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 18:02:41,514 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [273865663] [2023-12-02 18:02:41,514 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-12-02 18:02:41,514 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 18:02:41,515 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67d62541-d915-40fd-b4cd-67bee98c5964/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 18:02:41,518 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67d62541-d915-40fd-b4cd-67bee98c5964/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 18:02:41,519 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67d62541-d915-40fd-b4cd-67bee98c5964/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2023-12-02 18:02:42,043 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-12-02 18:02:42,043 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-02 18:02:42,047 INFO L262 TraceCheckSpWp]: Trace formula consists of 967 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-02 18:02:42,049 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 18:02:42,128 INFO L134 CoverageAnalysis]: Checked inductivity of 375 backedges. 0 proven. 84 refuted. 0 times theorem prover too weak. 291 trivial. 0 not checked. [2023-12-02 18:02:42,128 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 18:02:42,334 INFO L134 CoverageAnalysis]: Checked inductivity of 375 backedges. 0 proven. 84 refuted. 0 times theorem prover too weak. 291 trivial. 0 not checked. [2023-12-02 18:02:42,334 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [273865663] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 18:02:42,334 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1916489424] [2023-12-02 18:02:42,336 INFO L159 IcfgInterpreter]: Started Sifa with 22 locations of interest [2023-12-02 18:02:42,336 INFO L166 IcfgInterpreter]: Building call graph [2023-12-02 18:02:42,336 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-12-02 18:02:42,337 INFO L176 IcfgInterpreter]: Starting interpretation [2023-12-02 18:02:42,337 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-12-02 18:03:00,257 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 119 for LOIs [2023-12-02 18:03:00,283 INFO L180 IcfgInterpreter]: Interpretation finished [2023-12-02 18:03:05,398 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '61655#(and (= 21 |ULTIMATE.start_getopt32_~applet_opts#1.base|) (= |ULTIMATE.start_getopt32_#in~applet_opts#1.base| 21) (= ~opt_complementary~0.base 20) (= 0 (+ |ULTIMATE.start_getopt32_~max_arg~0#1| 1)) (= |ULTIMATE.start_getopt32_~spec_flgs~0#1| 0) (= |ULTIMATE.start_getopt32_~flags~0#1| 0) (= ~opt_complementary~0.offset 0) (<= 2147483647 |ULTIMATE.start_getopt32_~argc~0#1|) (= |ULTIMATE.start_getopt32_#varArgs#1.offset| 0) (= |ULTIMATE.start___main_#t~varargs246#1.offset| 0) (= |ULTIMATE.start_getopt32_~min_arg~0#1| 0) (= |ULTIMATE.start_getopt32_~applet_opts#1.offset| 0) (= 0 |ULTIMATE.start_getopt32_#in~applet_opts#1.offset|) (= |ULTIMATE.start___main_~status~1#1| 0) (= |ULTIMATE.start___main_~flags~1#1| 0) (= |ULTIMATE.start_getopt32_~#complementary~0#1.offset| 0) (= |ULTIMATE.start_getopt32_~requires~0#1| 0))' at error location [2023-12-02 18:03:05,398 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2023-12-02 18:03:05,398 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-02 18:03:05,398 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 16 [2023-12-02 18:03:05,398 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2012184852] [2023-12-02 18:03:05,399 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-02 18:03:05,399 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2023-12-02 18:03:05,399 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 18:03:05,400 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2023-12-02 18:03:05,400 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=176, Invalid=815, Unknown=1, NotChecked=0, Total=992 [2023-12-02 18:03:05,401 INFO L87 Difference]: Start difference. First operand 680 states and 904 transitions. Second operand has 17 states, 16 states have (on average 5.0) internal successors, (80), 17 states have internal predecessors, (80), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-12-02 18:03:08,182 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 18:03:08,182 INFO L93 Difference]: Finished difference Result 3886 states and 5497 transitions. [2023-12-02 18:03:08,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-12-02 18:03:08,182 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 5.0) internal successors, (80), 17 states have internal predecessors, (80), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 102 [2023-12-02 18:03:08,183 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 18:03:08,202 INFO L225 Difference]: With dead ends: 3886 [2023-12-02 18:03:08,202 INFO L226 Difference]: Without dead ends: 3885 [2023-12-02 18:03:08,204 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 312 GetRequests, 272 SyntacticMatches, 10 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 591 ImplicationChecksByTransitivity, 5.3s TimeCoverageRelationStatistics Valid=176, Invalid=815, Unknown=1, NotChecked=0, Total=992 [2023-12-02 18:03:08,205 INFO L413 NwaCegarLoop]: 628 mSDtfsCounter, 6729 mSDsluCounter, 4347 mSDsCounter, 0 mSdLazyCounter, 1058 mSolverCounterSat, 102 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6841 SdHoareTripleChecker+Valid, 4975 SdHoareTripleChecker+Invalid, 1160 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 102 IncrementalHoareTripleChecker+Valid, 1058 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2023-12-02 18:03:08,205 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6841 Valid, 4975 Invalid, 1160 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [102 Valid, 1058 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2023-12-02 18:03:08,209 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3885 states. [2023-12-02 18:03:08,319 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3885 to 712. [2023-12-02 18:03:08,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 712 states, 588 states have (on average 1.4251700680272108) internal successors, (838), 646 states have internal predecessors, (838), 54 states have call successors, (54), 19 states have call predecessors, (54), 19 states have return successors, (52), 48 states have call predecessors, (52), 48 states have call successors, (52) [2023-12-02 18:03:08,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 712 states to 712 states and 944 transitions. [2023-12-02 18:03:08,322 INFO L78 Accepts]: Start accepts. Automaton has 712 states and 944 transitions. Word has length 102 [2023-12-02 18:03:08,322 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 18:03:08,322 INFO L495 AbstractCegarLoop]: Abstraction has 712 states and 944 transitions. [2023-12-02 18:03:08,322 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 5.0) internal successors, (80), 17 states have internal predecessors, (80), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-12-02 18:03:08,322 INFO L276 IsEmpty]: Start isEmpty. Operand 712 states and 944 transitions. [2023-12-02 18:03:08,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2023-12-02 18:03:08,323 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 18:03:08,323 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 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] [2023-12-02 18:03:08,330 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67d62541-d915-40fd-b4cd-67bee98c5964/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Ended with exit code 0 [2023-12-02 18:03:08,523 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67d62541-d915-40fd-b4cd-67bee98c5964/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable30 [2023-12-02 18:03:08,524 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [vasprintfErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, vasprintfErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, remove_fileErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 67 more)] === [2023-12-02 18:03:08,524 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 18:03:08,524 INFO L85 PathProgramCache]: Analyzing trace with hash 1412690572, now seen corresponding path program 5 times [2023-12-02 18:03:08,524 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 18:03:08,524 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [577743508] [2023-12-02 18:03:08,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 18:03:08,524 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 18:03:09,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 18:03:09,919 INFO L134 CoverageAnalysis]: Checked inductivity of 352 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 297 trivial. 0 not checked. [2023-12-02 18:03:09,919 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 18:03:09,919 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [577743508] [2023-12-02 18:03:09,919 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [577743508] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 18:03:09,919 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1674412414] [2023-12-02 18:03:09,919 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-12-02 18:03:09,919 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 18:03:09,919 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67d62541-d915-40fd-b4cd-67bee98c5964/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 18:03:09,920 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67d62541-d915-40fd-b4cd-67bee98c5964/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 18:03:09,921 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67d62541-d915-40fd-b4cd-67bee98c5964/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process [2023-12-02 18:03:49,068 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2023-12-02 18:03:49,068 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-02 18:03:49,083 INFO L262 TraceCheckSpWp]: Trace formula consists of 964 conjuncts, 30 conjunts are in the unsatisfiable core [2023-12-02 18:03:49,086 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 18:03:49,482 INFO L134 CoverageAnalysis]: Checked inductivity of 352 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 297 trivial. 0 not checked. [2023-12-02 18:03:49,483 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 18:03:50,163 INFO L134 CoverageAnalysis]: Checked inductivity of 352 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 297 trivial. 0 not checked. [2023-12-02 18:03:50,163 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1674412414] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 18:03:50,164 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1655119912] [2023-12-02 18:03:50,165 INFO L159 IcfgInterpreter]: Started Sifa with 36 locations of interest [2023-12-02 18:03:50,165 INFO L166 IcfgInterpreter]: Building call graph [2023-12-02 18:03:50,166 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-12-02 18:03:50,166 INFO L176 IcfgInterpreter]: Starting interpretation [2023-12-02 18:03:50,166 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-12-02 18:04:12,598 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 119 for LOIs [2023-12-02 18:04:12,624 INFO L197 IcfgInterpreter]: Interpreting procedure #Ultimate.C_memset with input of size 63 for LOIs [2023-12-02 18:04:12,685 INFO L180 IcfgInterpreter]: Interpretation finished [2023-12-02 18:04:24,532 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '67771#(and (= 21 |ULTIMATE.start_getopt32_~applet_opts#1.base|) (exists ((|v_#memory_$Pointer$.offset_906| (Array Int (Array Int Int)))) (= |#memory_$Pointer$.offset| (store |v_#memory_$Pointer$.offset_906| |ULTIMATE.start_getopt32_~on_off~0#1.base| (store (select |v_#memory_$Pointer$.offset_906| |ULTIMATE.start_getopt32_~on_off~0#1.base|) |ULTIMATE.start_getopt32_~on_off~0#1.offset| (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_getopt32_~on_off~0#1.base|) |ULTIMATE.start_getopt32_~on_off~0#1.offset|))))) (= |ULTIMATE.start_getopt32_~p~3#1.offset| 0) (= |ULTIMATE.start_getopt32_#in~applet_opts#1.base| 21) (= ~opt_complementary~0.base 20) (<= |ULTIMATE.start_getopt32_~c~0#1| 31) (= 0 (+ |ULTIMATE.start_getopt32_~max_arg~0#1| 1)) (<= 0 |ULTIMATE.start_getopt32_~applet_opts#1.offset|) (= |ULTIMATE.start_getopt32_~spec_flgs~0#1| 0) (<= 0 |ULTIMATE.start_getopt32_~s~0#1.offset|) (not (= |ULTIMATE.start_getopt32_~c~0#1| 0)) (exists ((|v_#memory_$Pointer$.base_910| (Array Int (Array Int Int)))) (= |#memory_$Pointer$.base| (store |v_#memory_$Pointer$.base_910| |ULTIMATE.start_getopt32_~on_off~0#1.base| (store (select |v_#memory_$Pointer$.base_910| |ULTIMATE.start_getopt32_~on_off~0#1.base|) |ULTIMATE.start_getopt32_~on_off~0#1.offset| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_getopt32_~on_off~0#1.base|) |ULTIMATE.start_getopt32_~on_off~0#1.offset|))))) (= |ULTIMATE.start_getopt32_~flags~0#1| 0) (= ~opt_complementary~0.offset 0) (<= 2147483648 |ULTIMATE.start_getopt32_#t~nondet91#1|) (= |ULTIMATE.start_getopt32_#varArgs#1.offset| 0) (= |ULTIMATE.start___main_#t~varargs246#1.offset| 0) (<= 0 |ULTIMATE.start_getopt32_~c~0#1|) (= |ULTIMATE.start_getopt32_~s~0#1.base| 21) (= |ULTIMATE.start_getopt32_~min_arg~0#1| 0) (= 0 |ULTIMATE.start_getopt32_#in~applet_opts#1.offset|) (= |ULTIMATE.start___main_~status~1#1| 0) (<= 0 |ULTIMATE.start_getopt32_~on_off~0#1.offset|) (= |ULTIMATE.start___main_~flags~1#1| 0) (<= |ULTIMATE.start_getopt32_~applet_opts#1.offset| 1) (= |ULTIMATE.start_getopt32_~#complementary~0#1.offset| 0) (= |ULTIMATE.start_getopt32_~argc~0#1| 1) (exists ((|v_#memory_int_1128| (Array Int (Array Int Int)))) (= |#memory_int| (store |v_#memory_int_1128| |ULTIMATE.start_getopt32_~on_off~0#1.base| (store (select |v_#memory_int_1128| |ULTIMATE.start_getopt32_~on_off~0#1.base|) |ULTIMATE.start_getopt32_~on_off~0#1.offset| (select (select |v_#memory_int_1128| 21) |ULTIMATE.start_getopt32_~s~0#1.offset|))))) (= |ULTIMATE.start_getopt32_~requires~0#1| 0))' at error location [2023-12-02 18:04:24,533 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2023-12-02 18:04:24,533 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-02 18:04:24,533 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14, 14] total 36 [2023-12-02 18:04:24,533 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [485421789] [2023-12-02 18:04:24,533 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-02 18:04:24,534 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2023-12-02 18:04:24,534 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 18:04:24,534 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2023-12-02 18:04:24,537 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=457, Invalid=3447, Unknown=2, NotChecked=0, Total=3906 [2023-12-02 18:04:24,537 INFO L87 Difference]: Start difference. First operand 712 states and 944 transitions. Second operand has 36 states, 34 states have (on average 2.0) internal successors, (68), 36 states have internal predecessors, (68), 1 states have call successors, (2), 1 states have call predecessors, (2), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2023-12-02 18:04:38,325 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 18:04:38,325 INFO L93 Difference]: Finished difference Result 1318 states and 1804 transitions. [2023-12-02 18:04:38,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2023-12-02 18:04:38,326 INFO L78 Accepts]: Start accepts. Automaton has has 36 states, 34 states have (on average 2.0) internal successors, (68), 36 states have internal predecessors, (68), 1 states have call successors, (2), 1 states have call predecessors, (2), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 108 [2023-12-02 18:04:38,326 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 18:04:38,330 INFO L225 Difference]: With dead ends: 1318 [2023-12-02 18:04:38,330 INFO L226 Difference]: Without dead ends: 752 [2023-12-02 18:04:38,333 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 367 GetRequests, 263 SyntacticMatches, 12 SemanticMatches, 92 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2633 ImplicationChecksByTransitivity, 23.7s TimeCoverageRelationStatistics Valid=1572, Invalid=7168, Unknown=2, NotChecked=0, Total=8742 [2023-12-02 18:04:38,334 INFO L413 NwaCegarLoop]: 595 mSDtfsCounter, 31 mSDsluCounter, 8264 mSDsCounter, 0 mSdLazyCounter, 2031 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 8859 SdHoareTripleChecker+Invalid, 2066 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 2031 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2023-12-02 18:04:38,334 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 8859 Invalid, 2066 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 2031 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2023-12-02 18:04:38,335 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 752 states. [2023-12-02 18:04:38,411 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 752 to 742. [2023-12-02 18:04:38,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 742 states, 618 states have (on average 1.4239482200647249) internal successors, (880), 676 states have internal predecessors, (880), 54 states have call successors, (54), 19 states have call predecessors, (54), 19 states have return successors, (52), 48 states have call predecessors, (52), 48 states have call successors, (52) [2023-12-02 18:04:38,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 742 states to 742 states and 986 transitions. [2023-12-02 18:04:38,414 INFO L78 Accepts]: Start accepts. Automaton has 742 states and 986 transitions. Word has length 108 [2023-12-02 18:04:38,414 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 18:04:38,414 INFO L495 AbstractCegarLoop]: Abstraction has 742 states and 986 transitions. [2023-12-02 18:04:38,415 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 34 states have (on average 2.0) internal successors, (68), 36 states have internal predecessors, (68), 1 states have call successors, (2), 1 states have call predecessors, (2), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2023-12-02 18:04:38,415 INFO L276 IsEmpty]: Start isEmpty. Operand 742 states and 986 transitions. [2023-12-02 18:04:38,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2023-12-02 18:04:38,415 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 18:04:38,416 INFO L195 NwaCegarLoop]: trace histogram [22, 10, 10, 10, 10, 10, 10, 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] [2023-12-02 18:04:38,431 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67d62541-d915-40fd-b4cd-67bee98c5964/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Ended with exit code 0 [2023-12-02 18:04:38,616 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31,27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67d62541-d915-40fd-b4cd-67bee98c5964/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 18:04:38,616 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [vasprintfErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, vasprintfErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, remove_fileErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 67 more)] === [2023-12-02 18:04:38,616 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 18:04:38,617 INFO L85 PathProgramCache]: Analyzing trace with hash 617845900, now seen corresponding path program 6 times [2023-12-02 18:04:38,617 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 18:04:38,617 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [565496862] [2023-12-02 18:04:38,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 18:04:38,617 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 18:04:38,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 18:04:40,474 INFO L134 CoverageAnalysis]: Checked inductivity of 550 backedges. 0 proven. 253 refuted. 0 times theorem prover too weak. 297 trivial. 0 not checked. [2023-12-02 18:04:40,474 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 18:04:40,474 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [565496862] [2023-12-02 18:04:40,475 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [565496862] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 18:04:40,475 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [60238002] [2023-12-02 18:04:40,475 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-12-02 18:04:40,475 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 18:04:40,475 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67d62541-d915-40fd-b4cd-67bee98c5964/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 18:04:40,476 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67d62541-d915-40fd-b4cd-67bee98c5964/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 18:04:40,476 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67d62541-d915-40fd-b4cd-67bee98c5964/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Waiting until timeout for monitored process [2023-12-02 18:04:49,371 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-12-02 18:04:49,371 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-02 18:04:49,382 INFO L262 TraceCheckSpWp]: Trace formula consists of 1353 conjuncts, 50 conjunts are in the unsatisfiable core [2023-12-02 18:04:49,385 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 18:04:50,594 INFO L134 CoverageAnalysis]: Checked inductivity of 550 backedges. 0 proven. 253 refuted. 0 times theorem prover too weak. 297 trivial. 0 not checked. [2023-12-02 18:04:50,595 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 18:04:55,389 INFO L134 CoverageAnalysis]: Checked inductivity of 550 backedges. 0 proven. 253 refuted. 0 times theorem prover too weak. 297 trivial. 0 not checked. [2023-12-02 18:04:55,389 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [60238002] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 18:04:55,389 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1893132791] [2023-12-02 18:04:55,391 INFO L159 IcfgInterpreter]: Started Sifa with 36 locations of interest [2023-12-02 18:04:55,391 INFO L166 IcfgInterpreter]: Building call graph [2023-12-02 18:04:55,391 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-12-02 18:04:55,391 INFO L176 IcfgInterpreter]: Starting interpretation [2023-12-02 18:04:55,391 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-12-02 18:05:22,161 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 119 for LOIs [2023-12-02 18:05:22,186 INFO L197 IcfgInterpreter]: Interpreting procedure #Ultimate.C_memset with input of size 225 for LOIs [2023-12-02 18:05:23,368 INFO L180 IcfgInterpreter]: Interpretation finished [2023-12-02 18:05:49,739 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '71243#(and (= 21 |ULTIMATE.start_getopt32_~applet_opts#1.base|) (= |ULTIMATE.start_getopt32_~p~3#1.offset| 0) (= |ULTIMATE.start_getopt32_#in~applet_opts#1.base| 21) (= ~opt_complementary~0.base 20) (<= |ULTIMATE.start_getopt32_~c~0#1| 31) (= 0 (+ |ULTIMATE.start_getopt32_~max_arg~0#1| 1)) (exists ((|v_#memory_$Pointer$.base_989| (Array Int (Array Int Int)))) (= (store |v_#memory_$Pointer$.base_989| |ULTIMATE.start_getopt32_~on_off~0#1.base| (store (select |v_#memory_$Pointer$.base_989| |ULTIMATE.start_getopt32_~on_off~0#1.base|) |ULTIMATE.start_getopt32_~on_off~0#1.offset| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_getopt32_~on_off~0#1.base|) |ULTIMATE.start_getopt32_~on_off~0#1.offset|))) |#memory_$Pointer$.base|)) (<= 0 |ULTIMATE.start_getopt32_~applet_opts#1.offset|) (= |ULTIMATE.start_getopt32_~spec_flgs~0#1| 0) (<= 0 |ULTIMATE.start_getopt32_~s~0#1.offset|) (not (= |ULTIMATE.start_getopt32_~c~0#1| 0)) (= |ULTIMATE.start_getopt32_~flags~0#1| 0) (= ~opt_complementary~0.offset 0) (<= 2147483648 |ULTIMATE.start_getopt32_#t~nondet91#1|) (= |ULTIMATE.start_getopt32_#varArgs#1.offset| 0) (= |ULTIMATE.start___main_#t~varargs246#1.offset| 0) (<= 0 |ULTIMATE.start_getopt32_~c~0#1|) (= |ULTIMATE.start_getopt32_~s~0#1.base| 21) (= |ULTIMATE.start_getopt32_~min_arg~0#1| 0) (= 0 |ULTIMATE.start_getopt32_#in~applet_opts#1.offset|) (= |ULTIMATE.start___main_~status~1#1| 0) (exists ((|v_#memory_int_1211| (Array Int (Array Int Int)))) (= |#memory_int| (store |v_#memory_int_1211| |ULTIMATE.start_getopt32_~on_off~0#1.base| (store (select |v_#memory_int_1211| |ULTIMATE.start_getopt32_~on_off~0#1.base|) |ULTIMATE.start_getopt32_~on_off~0#1.offset| (select (select |v_#memory_int_1211| 21) |ULTIMATE.start_getopt32_~s~0#1.offset|))))) (<= 0 |ULTIMATE.start_getopt32_~on_off~0#1.offset|) (= |ULTIMATE.start___main_~flags~1#1| 0) (<= |ULTIMATE.start_getopt32_~applet_opts#1.offset| 1) (= |ULTIMATE.start_getopt32_~#complementary~0#1.offset| 0) (= |ULTIMATE.start_getopt32_~argc~0#1| 1) (= |ULTIMATE.start_getopt32_~requires~0#1| 0) (exists ((|v_#memory_$Pointer$.offset_985| (Array Int (Array Int Int)))) (= |#memory_$Pointer$.offset| (store |v_#memory_$Pointer$.offset_985| |ULTIMATE.start_getopt32_~on_off~0#1.base| (store (select |v_#memory_$Pointer$.offset_985| |ULTIMATE.start_getopt32_~on_off~0#1.base|) |ULTIMATE.start_getopt32_~on_off~0#1.offset| (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_getopt32_~on_off~0#1.base|) |ULTIMATE.start_getopt32_~on_off~0#1.offset|))))))' at error location [2023-12-02 18:05:49,739 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2023-12-02 18:05:49,739 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-02 18:05:49,739 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [26, 26, 26] total 72 [2023-12-02 18:05:49,739 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [942237100] [2023-12-02 18:05:49,739 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-02 18:05:49,740 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 72 states [2023-12-02 18:05:49,740 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 18:05:49,741 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 72 interpolants. [2023-12-02 18:05:49,745 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1427, Invalid=8468, Unknown=5, NotChecked=0, Total=9900 [2023-12-02 18:05:49,745 INFO L87 Difference]: Start difference. First operand 742 states and 986 transitions. Second operand has 72 states, 70 states have (on average 1.4857142857142858) internal successors, (104), 72 states have internal predecessors, (104), 1 states have call successors, (2), 1 states have call predecessors, (2), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3)