./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/busybox-1.22.0/rm-1.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12de7233-5993-40ef-a6aa-4a9ed282749c/bin/utaipan-verify-nQ1chXbOIh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12de7233-5993-40ef-a6aa-4a9ed282749c/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_12de7233-5993-40ef-a6aa-4a9ed282749c/bin/utaipan-verify-nQ1chXbOIh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12de7233-5993-40ef-a6aa-4a9ed282749c/bin/utaipan-verify-nQ1chXbOIh/config/TaipanReach.xml -i ../../sv-benchmarks/c/busybox-1.22.0/rm-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12de7233-5993-40ef-a6aa-4a9ed282749c/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_12de7233-5993-40ef-a6aa-4a9ed282749c/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 dbde1465e4a8a8be87bf489cace5bdf23c2ed0aa6acb10b5f1f6c91d8d840161 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 13:40:49,126 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 13:40:49,195 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12de7233-5993-40ef-a6aa-4a9ed282749c/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Overflow-64bit-Taipan_Default.epf [2023-12-02 13:40:49,199 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-02 13:40:49,200 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-02 13:40:49,225 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 13:40:49,226 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-02 13:40:49,226 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-02 13:40:49,227 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-02 13:40:49,227 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-02 13:40:49,228 INFO L153 SettingsManager]: * User list type=DISABLED [2023-12-02 13:40:49,229 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-12-02 13:40:49,229 INFO L153 SettingsManager]: * Explicit value domain=true [2023-12-02 13:40:49,230 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-12-02 13:40:49,230 INFO L153 SettingsManager]: * Octagon Domain=false [2023-12-02 13:40:49,231 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-12-02 13:40:49,231 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-12-02 13:40:49,232 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-12-02 13:40:49,232 INFO L153 SettingsManager]: * Interval Domain=false [2023-12-02 13:40:49,233 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-12-02 13:40:49,234 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-12-02 13:40:49,234 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-12-02 13:40:49,235 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 13:40:49,235 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 13:40:49,236 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-02 13:40:49,236 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 13:40:49,237 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 13:40:49,237 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 13:40:49,237 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 13:40:49,237 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-12-02 13:40:49,238 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-12-02 13:40:49,238 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 13:40:49,239 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 13:40:49,239 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 13:40:49,239 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-02 13:40:49,239 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-02 13:40:49,239 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 13:40:49,240 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 13:40:49,240 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 13:40:49,240 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-02 13:40:49,240 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-12-02 13:40:49,241 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-02 13:40:49,241 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-02 13:40:49,241 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-02 13:40:49,241 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-12-02 13:40:49,241 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-02 13:40:49,242 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_12de7233-5993-40ef-a6aa-4a9ed282749c/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12de7233-5993-40ef-a6aa-4a9ed282749c/bin/utaipan-verify-nQ1chXbOIh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> dbde1465e4a8a8be87bf489cace5bdf23c2ed0aa6acb10b5f1f6c91d8d840161 [2023-12-02 13:40:49,459 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 13:40:49,481 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 13:40:49,484 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 13:40:49,485 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 13:40:49,485 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 13:40:49,487 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12de7233-5993-40ef-a6aa-4a9ed282749c/bin/utaipan-verify-nQ1chXbOIh/../../sv-benchmarks/c/busybox-1.22.0/rm-1.i [2023-12-02 13:40:52,453 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 13:40:52,838 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 13:40:52,839 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12de7233-5993-40ef-a6aa-4a9ed282749c/sv-benchmarks/c/busybox-1.22.0/rm-1.i [2023-12-02 13:40:52,868 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12de7233-5993-40ef-a6aa-4a9ed282749c/bin/utaipan-verify-nQ1chXbOIh/data/882993e62/e59950ed4f7b41fd945e030472eb2cb7/FLAGd5366d00e [2023-12-02 13:40:52,883 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12de7233-5993-40ef-a6aa-4a9ed282749c/bin/utaipan-verify-nQ1chXbOIh/data/882993e62/e59950ed4f7b41fd945e030472eb2cb7 [2023-12-02 13:40:52,886 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 13:40:52,887 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 13:40:52,888 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 13:40:52,888 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 13:40:52,893 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 13:40:52,894 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 01:40:52" (1/1) ... [2023-12-02 13:40:52,895 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@727a19f1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:40:52, skipping insertion in model container [2023-12-02 13:40:52,896 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 01:40:52" (1/1) ... [2023-12-02 13:40:52,970 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 13:40:54,566 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 13:40:54,595 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 13:40:54,779 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 13:40:54,999 WARN L675 CHandler]: The function fflush is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 13:40:54,999 WARN L675 CHandler]: The function strerror is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 13:40:54,999 WARN L675 CHandler]: The function strrchr is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 13:40:54,999 WARN L675 CHandler]: The function strtoul is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 13:40:55,000 WARN L675 CHandler]: The function fprintf is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 13:40:55,009 INFO L206 MainTranslator]: Completed translation [2023-12-02 13:40:55,009 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:40:55 WrapperNode [2023-12-02 13:40:55,009 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 13:40:55,011 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 13:40:55,011 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 13:40:55,011 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 13:40:55,019 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:40:55" (1/1) ... [2023-12-02 13:40:55,082 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:40:55" (1/1) ... [2023-12-02 13:40:55,209 INFO L138 Inliner]: procedures = 665, calls = 522, calls flagged for inlining = 33, calls inlined = 32, statements flattened = 2276 [2023-12-02 13:40:55,209 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 13:40:55,210 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 13:40:55,210 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 13:40:55,210 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 13:40:55,220 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:40:55" (1/1) ... [2023-12-02 13:40:55,221 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:40:55" (1/1) ... [2023-12-02 13:40:55,237 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:40:55" (1/1) ... [2023-12-02 13:40:55,237 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:40:55" (1/1) ... [2023-12-02 13:40:55,296 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:40:55" (1/1) ... [2023-12-02 13:40:55,315 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:40:55" (1/1) ... [2023-12-02 13:40:55,331 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:40:55" (1/1) ... [2023-12-02 13:40:55,342 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:40:55" (1/1) ... [2023-12-02 13:40:55,359 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 13:40:55,360 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 13:40:55,361 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 13:40:55,361 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 13:40:55,362 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:40:55" (1/1) ... [2023-12-02 13:40:55,368 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 13:40:55,380 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12de7233-5993-40ef-a6aa-4a9ed282749c/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 13:40:55,398 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12de7233-5993-40ef-a6aa-4a9ed282749c/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-12-02 13:40:55,400 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12de7233-5993-40ef-a6aa-4a9ed282749c/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-12-02 13:40:55,433 INFO L130 BoogieDeclarations]: Found specification of procedure last_char_is [2023-12-02 13:40:55,434 INFO L138 BoogieDeclarations]: Found implementation of procedure last_char_is [2023-12-02 13:40:55,434 INFO L130 BoogieDeclarations]: Found specification of procedure vasprintf [2023-12-02 13:40:55,434 INFO L138 BoogieDeclarations]: Found implementation of procedure vasprintf [2023-12-02 13:40:55,434 INFO L130 BoogieDeclarations]: Found specification of procedure strerror [2023-12-02 13:40:55,434 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-12-02 13:40:55,435 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2023-12-02 13:40:55,435 INFO L130 BoogieDeclarations]: Found specification of procedure bb_verror_msg [2023-12-02 13:40:55,435 INFO L138 BoogieDeclarations]: Found implementation of procedure bb_verror_msg [2023-12-02 13:40:55,435 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-12-02 13:40:55,435 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-12-02 13:40:55,436 INFO L130 BoogieDeclarations]: Found specification of procedure bb_ask_confirmation [2023-12-02 13:40:55,436 INFO L138 BoogieDeclarations]: Found implementation of procedure bb_ask_confirmation [2023-12-02 13:40:55,436 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-12-02 13:40:55,436 INFO L130 BoogieDeclarations]: Found specification of procedure fflush [2023-12-02 13:40:55,437 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 13:40:55,437 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-12-02 13:40:55,437 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 13:40:55,437 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 13:40:55,437 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy [2023-12-02 13:40:55,437 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy [2023-12-02 13:40:55,438 INFO L130 BoogieDeclarations]: Found specification of procedure xmalloc [2023-12-02 13:40:55,438 INFO L138 BoogieDeclarations]: Found implementation of procedure xmalloc [2023-12-02 13:40:55,438 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2023-12-02 13:40:55,438 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-12-02 13:40:55,438 INFO L130 BoogieDeclarations]: Found specification of procedure remove_file [2023-12-02 13:40:55,439 INFO L138 BoogieDeclarations]: Found implementation of procedure remove_file [2023-12-02 13:40:55,439 INFO L130 BoogieDeclarations]: Found specification of procedure access [2023-12-02 13:40:55,439 INFO L138 BoogieDeclarations]: Found implementation of procedure access [2023-12-02 13:40:55,439 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2023-12-02 13:40:55,439 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2023-12-02 13:40:55,440 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-02 13:40:55,440 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-02 13:40:55,440 INFO L130 BoogieDeclarations]: Found specification of procedure fprintf [2023-12-02 13:40:55,440 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-12-02 13:40:55,440 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-12-02 13:40:55,440 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-12-02 13:40:55,441 INFO L130 BoogieDeclarations]: Found specification of procedure bb_show_usage [2023-12-02 13:40:55,441 INFO L138 BoogieDeclarations]: Found implementation of procedure bb_show_usage [2023-12-02 13:40:55,441 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-12-02 13:40:55,441 INFO L130 BoogieDeclarations]: Found specification of procedure bb_perror_msg [2023-12-02 13:40:55,441 INFO L138 BoogieDeclarations]: Found implementation of procedure bb_perror_msg [2023-12-02 13:40:55,442 INFO L130 BoogieDeclarations]: Found specification of procedure strrchr [2023-12-02 13:40:55,442 INFO L130 BoogieDeclarations]: Found specification of procedure isatty [2023-12-02 13:40:55,442 INFO L138 BoogieDeclarations]: Found implementation of procedure isatty [2023-12-02 13:40:55,442 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2023-12-02 13:40:55,442 INFO L130 BoogieDeclarations]: Found specification of procedure bb_error_msg_and_die [2023-12-02 13:40:55,443 INFO L138 BoogieDeclarations]: Found implementation of procedure bb_error_msg_and_die [2023-12-02 13:40:55,443 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-02 13:40:55,443 INFO L130 BoogieDeclarations]: Found specification of procedure bb_error_msg [2023-12-02 13:40:55,443 INFO L138 BoogieDeclarations]: Found implementation of procedure bb_error_msg [2023-12-02 13:40:55,885 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 13:40:55,888 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 13:40:58,151 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 13:40:58,786 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 13:40:58,786 INFO L309 CfgBuilder]: Removed 31 assume(true) statements. [2023-12-02 13:40:58,788 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 01:40:58 BoogieIcfgContainer [2023-12-02 13:40:58,788 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 13:40:58,791 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-02 13:40:58,791 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-02 13:40:58,794 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-02 13:40:58,794 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 01:40:52" (1/3) ... [2023-12-02 13:40:58,794 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@394209c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 01:40:58, skipping insertion in model container [2023-12-02 13:40:58,795 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:40:55" (2/3) ... [2023-12-02 13:40:58,795 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@394209c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 01:40:58, skipping insertion in model container [2023-12-02 13:40:58,795 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 01:40:58" (3/3) ... [2023-12-02 13:40:58,797 INFO L112 eAbstractionObserver]: Analyzing ICFG rm-1.i [2023-12-02 13:40:58,818 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-02 13:40:58,818 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 62 error locations. [2023-12-02 13:40:58,886 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-02 13:40:58,894 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;@3515ccb7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-02 13:40:58,894 INFO L358 AbstractCegarLoop]: Starting to check reachability of 62 error locations. [2023-12-02 13:40:58,902 INFO L276 IsEmpty]: Start isEmpty. Operand has 511 states, 381 states have (on average 1.6325459317585302) internal successors, (622), 445 states have internal predecessors, (622), 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 13:40:58,910 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2023-12-02 13:40:58,910 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 13:40:58,911 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2023-12-02 13:40:58,911 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [vasprintfErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, vasprintfErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, remove_fileErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 59 more)] === [2023-12-02 13:40:58,917 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 13:40:58,917 INFO L85 PathProgramCache]: Analyzing trace with hash 2208675, now seen corresponding path program 1 times [2023-12-02 13:40:58,928 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 13:40:58,929 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1181271953] [2023-12-02 13:40:58,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:40:58,930 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 13:40:59,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:40:59,372 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 13:40:59,372 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 13:40:59,373 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1181271953] [2023-12-02 13:40:59,373 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1181271953] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 13:40:59,374 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 13:40:59,374 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-12-02 13:40:59,376 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1135850986] [2023-12-02 13:40:59,376 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 13:40:59,381 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 13:40:59,382 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 13:40:59,411 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 13:40:59,412 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 13:40:59,416 INFO L87 Difference]: Start difference. First operand has 511 states, 381 states have (on average 1.6325459317585302) internal successors, (622), 445 states have internal predecessors, (622), 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 13:40:59,848 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 13:40:59,848 INFO L93 Difference]: Finished difference Result 1015 states and 1467 transitions. [2023-12-02 13:40:59,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 13:40:59,851 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 13:40:59,852 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 13:40:59,866 INFO L225 Difference]: With dead ends: 1015 [2023-12-02 13:40:59,866 INFO L226 Difference]: Without dead ends: 506 [2023-12-02 13:40:59,874 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 13:40:59,878 INFO L413 NwaCegarLoop]: 599 mSDtfsCounter, 1 mSDsluCounter, 597 mSDsCounter, 0 mSdLazyCounter, 177 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 1196 SdHoareTripleChecker+Invalid, 181 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 177 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-02 13:40:59,879 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 1196 Invalid, 181 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 177 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-02 13:40:59,901 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 506 states. [2023-12-02 13:40:59,953 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 506 to 506. [2023-12-02 13:40:59,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 506 states, 378 states have (on average 1.560846560846561) internal successors, (590), 446 states have internal predecessors, (590), 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 13:40:59,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 506 states to 506 states and 688 transitions. [2023-12-02 13:40:59,963 INFO L78 Accepts]: Start accepts. Automaton has 506 states and 688 transitions. Word has length 3 [2023-12-02 13:40:59,963 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 13:40:59,963 INFO L495 AbstractCegarLoop]: Abstraction has 506 states and 688 transitions. [2023-12-02 13:40:59,963 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 13:40:59,964 INFO L276 IsEmpty]: Start isEmpty. Operand 506 states and 688 transitions. [2023-12-02 13:40:59,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-12-02 13:40:59,964 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 13:40:59,964 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1] [2023-12-02 13:40:59,965 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-02 13:40:59,965 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [vasprintfErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, vasprintfErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, remove_fileErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 59 more)] === [2023-12-02 13:40:59,966 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 13:40:59,966 INFO L85 PathProgramCache]: Analyzing trace with hash 1374916763, now seen corresponding path program 1 times [2023-12-02 13:40:59,966 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 13:40:59,966 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1853556776] [2023-12-02 13:40:59,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:40:59,967 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 13:41:00,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:41:00,133 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 13:41:00,134 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 13:41:00,134 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1853556776] [2023-12-02 13:41:00,134 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1853556776] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 13:41:00,134 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [161552755] [2023-12-02 13:41:00,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:41:00,135 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 13:41:00,135 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12de7233-5993-40ef-a6aa-4a9ed282749c/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 13:41:00,139 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12de7233-5993-40ef-a6aa-4a9ed282749c/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 13:41:00,140 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12de7233-5993-40ef-a6aa-4a9ed282749c/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-12-02 13:41:00,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:41:00,508 INFO L262 TraceCheckSpWp]: Trace formula consists of 359 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-02 13:41:00,513 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 13:41:00,560 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 13:41:00,561 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 13:41:00,561 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [161552755] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 13:41:00,561 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-02 13:41:00,561 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 3 [2023-12-02 13:41:00,562 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1626507188] [2023-12-02 13:41:00,563 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 13:41:00,563 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-02 13:41:00,564 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 13:41:00,564 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-02 13:41:00,564 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-02 13:41:00,565 INFO L87 Difference]: Start difference. First operand 506 states and 688 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 13:41:00,925 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 13:41:00,926 INFO L93 Difference]: Finished difference Result 506 states and 688 transitions. [2023-12-02 13:41:00,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-02 13:41:00,926 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 13:41:00,927 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 13:41:00,932 INFO L225 Difference]: With dead ends: 506 [2023-12-02 13:41:00,932 INFO L226 Difference]: Without dead ends: 505 [2023-12-02 13:41:00,933 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 13:41:00,934 INFO L413 NwaCegarLoop]: 596 mSDtfsCounter, 3 mSDsluCounter, 596 mSDsCounter, 0 mSdLazyCounter, 177 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 1192 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 13:41:00,935 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 1192 Invalid, 177 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 177 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-02 13:41:00,937 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 505 states. [2023-12-02 13:41:00,958 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 505 to 505. [2023-12-02 13:41:00,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 505 states, 378 states have (on average 1.5582010582010581) internal successors, (589), 445 states have internal predecessors, (589), 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 13:41:00,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 505 states to 505 states and 687 transitions. [2023-12-02 13:41:00,965 INFO L78 Accepts]: Start accepts. Automaton has 505 states and 687 transitions. Word has length 6 [2023-12-02 13:41:00,965 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 13:41:00,965 INFO L495 AbstractCegarLoop]: Abstraction has 505 states and 687 transitions. [2023-12-02 13:41:00,965 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 13:41:00,965 INFO L276 IsEmpty]: Start isEmpty. Operand 505 states and 687 transitions. [2023-12-02 13:41:00,966 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-12-02 13:41:00,966 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 13:41:00,966 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1] [2023-12-02 13:41:00,975 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12de7233-5993-40ef-a6aa-4a9ed282749c/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-12-02 13:41:01,167 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12de7233-5993-40ef-a6aa-4a9ed282749c/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 13:41:01,167 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [vasprintfErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, vasprintfErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, remove_fileErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 59 more)] === [2023-12-02 13:41:01,168 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 13:41:01,168 INFO L85 PathProgramCache]: Analyzing trace with hash -327252512, now seen corresponding path program 1 times [2023-12-02 13:41:01,168 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 13:41:01,169 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1383385548] [2023-12-02 13:41:01,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:41:01,169 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 13:41:01,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:41:01,271 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 13:41:01,271 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 13:41:01,272 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1383385548] [2023-12-02 13:41:01,272 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1383385548] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 13:41:01,272 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 13:41:01,272 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-02 13:41:01,272 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1010544632] [2023-12-02 13:41:01,273 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 13:41:01,273 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 13:41:01,273 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 13:41:01,274 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 13:41:01,274 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 13:41:01,275 INFO L87 Difference]: Start difference. First operand 505 states and 687 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 13:41:01,579 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 13:41:01,579 INFO L93 Difference]: Finished difference Result 505 states and 687 transitions. [2023-12-02 13:41:01,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 13:41:01,580 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 13:41:01,580 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 13:41:01,584 INFO L225 Difference]: With dead ends: 505 [2023-12-02 13:41:01,584 INFO L226 Difference]: Without dead ends: 504 [2023-12-02 13:41:01,585 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 13:41:01,587 INFO L413 NwaCegarLoop]: 596 mSDtfsCounter, 0 mSDsluCounter, 596 mSDsCounter, 0 mSdLazyCounter, 171 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1192 SdHoareTripleChecker+Invalid, 172 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 171 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-02 13:41:01,587 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1192 Invalid, 172 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 171 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-02 13:41:01,589 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 504 states. [2023-12-02 13:41:01,606 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 504 to 502. [2023-12-02 13:41:01,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 502 states, 376 states have (on average 1.5585106382978724) internal successors, (586), 442 states have internal predecessors, (586), 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 13:41:01,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 502 states to 502 states and 684 transitions. [2023-12-02 13:41:01,611 INFO L78 Accepts]: Start accepts. Automaton has 502 states and 684 transitions. Word has length 7 [2023-12-02 13:41:01,611 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 13:41:01,611 INFO L495 AbstractCegarLoop]: Abstraction has 502 states and 684 transitions. [2023-12-02 13:41:01,611 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 13:41:01,612 INFO L276 IsEmpty]: Start isEmpty. Operand 502 states and 684 transitions. [2023-12-02 13:41:01,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-12-02 13:41:01,612 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 13:41:01,612 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 13:41:01,613 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-02 13:41:01,613 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [vasprintfErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, vasprintfErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, remove_fileErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 59 more)] === [2023-12-02 13:41:01,613 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 13:41:01,614 INFO L85 PathProgramCache]: Analyzing trace with hash 476879054, now seen corresponding path program 1 times [2023-12-02 13:41:01,614 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 13:41:01,614 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [766320889] [2023-12-02 13:41:01,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:41:01,614 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 13:41:01,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:41:01,737 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 13:41:01,737 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 13:41:01,738 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [766320889] [2023-12-02 13:41:01,738 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [766320889] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 13:41:01,738 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [170389110] [2023-12-02 13:41:01,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:41:01,739 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 13:41:01,739 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12de7233-5993-40ef-a6aa-4a9ed282749c/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 13:41:01,740 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12de7233-5993-40ef-a6aa-4a9ed282749c/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 13:41:01,742 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12de7233-5993-40ef-a6aa-4a9ed282749c/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-12-02 13:41:02,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:41:02,075 INFO L262 TraceCheckSpWp]: Trace formula consists of 375 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-02 13:41:02,077 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 13:41:02,090 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 13:41:02,090 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 13:41:02,090 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [170389110] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 13:41:02,090 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-02 13:41:02,090 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2023-12-02 13:41:02,091 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [537567805] [2023-12-02 13:41:02,091 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 13:41:02,091 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 13:41:02,091 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 13:41:02,092 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 13:41:02,092 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-02 13:41:02,092 INFO L87 Difference]: Start difference. First operand 502 states and 684 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 13:41:02,387 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 13:41:02,387 INFO L93 Difference]: Finished difference Result 502 states and 684 transitions. [2023-12-02 13:41:02,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 13:41:02,388 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 13:41:02,388 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 13:41:02,392 INFO L225 Difference]: With dead ends: 502 [2023-12-02 13:41:02,392 INFO L226 Difference]: Without dead ends: 500 [2023-12-02 13:41:02,393 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 13:41:02,394 INFO L413 NwaCegarLoop]: 589 mSDtfsCounter, 320 mSDsluCounter, 309 mSDsCounter, 0 mSdLazyCounter, 130 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 332 SdHoareTripleChecker+Valid, 898 SdHoareTripleChecker+Invalid, 131 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 130 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-02 13:41:02,394 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [332 Valid, 898 Invalid, 131 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 130 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-02 13:41:02,396 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 500 states. [2023-12-02 13:41:02,415 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 500 to 500. [2023-12-02 13:41:02,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 500 states, 376 states have (on average 1.553191489361702) internal successors, (584), 440 states have internal predecessors, (584), 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 13:41:02,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 500 states to 500 states and 682 transitions. [2023-12-02 13:41:02,421 INFO L78 Accepts]: Start accepts. Automaton has 500 states and 682 transitions. Word has length 9 [2023-12-02 13:41:02,423 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 13:41:02,423 INFO L495 AbstractCegarLoop]: Abstraction has 500 states and 682 transitions. [2023-12-02 13:41:02,423 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 13:41:02,423 INFO L276 IsEmpty]: Start isEmpty. Operand 500 states and 682 transitions. [2023-12-02 13:41:02,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-12-02 13:41:02,424 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 13:41:02,424 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 13:41:02,432 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12de7233-5993-40ef-a6aa-4a9ed282749c/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-12-02 13:41:02,632 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12de7233-5993-40ef-a6aa-4a9ed282749c/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 13:41:02,632 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [vasprintfErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, vasprintfErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, remove_fileErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 59 more)] === [2023-12-02 13:41:02,633 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 13:41:02,633 INFO L85 PathProgramCache]: Analyzing trace with hash 1898349590, now seen corresponding path program 1 times [2023-12-02 13:41:02,633 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 13:41:02,633 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [117421920] [2023-12-02 13:41:02,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:41:02,634 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 13:41:02,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:41:02,764 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 13:41:02,765 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 13:41:02,765 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [117421920] [2023-12-02 13:41:02,765 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [117421920] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 13:41:02,765 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1387650095] [2023-12-02 13:41:02,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:41:02,766 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 13:41:02,766 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12de7233-5993-40ef-a6aa-4a9ed282749c/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 13:41:02,767 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12de7233-5993-40ef-a6aa-4a9ed282749c/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 13:41:02,770 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12de7233-5993-40ef-a6aa-4a9ed282749c/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-12-02 13:41:03,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:41:03,045 INFO L262 TraceCheckSpWp]: Trace formula consists of 376 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-02 13:41:03,046 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 13:41:03,060 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 13:41:03,061 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 13:41:03,091 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 13:41:03,091 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1387650095] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 13:41:03,091 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1088745748] [2023-12-02 13:41:03,111 INFO L159 IcfgInterpreter]: Started Sifa with 10 locations of interest [2023-12-02 13:41:03,111 INFO L166 IcfgInterpreter]: Building call graph [2023-12-02 13:41:03,114 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-12-02 13:41:03,118 INFO L176 IcfgInterpreter]: Starting interpretation [2023-12-02 13:41:03,119 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-12-02 13:41:09,094 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 119 for LOIs [2023-12-02 13:41:09,133 INFO L180 IcfgInterpreter]: Interpretation finished [2023-12-02 13:41:10,557 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [1088745748] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 13:41:10,557 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2023-12-02 13:41:10,557 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [4, 3, 4] total 13 [2023-12-02 13:41:10,557 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [609230572] [2023-12-02 13:41:10,558 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 13:41:10,558 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-02 13:41:10,558 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 13:41:10,558 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-02 13:41:10,559 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2023-12-02 13:41:10,559 INFO L87 Difference]: Start difference. First operand 500 states and 682 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 13:41:14,758 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 13:41:14,758 INFO L93 Difference]: Finished difference Result 502 states and 683 transitions. [2023-12-02 13:41:14,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-02 13:41:14,759 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 13:41:14,759 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 13:41:14,762 INFO L225 Difference]: With dead ends: 502 [2023-12-02 13:41:14,763 INFO L226 Difference]: Without dead ends: 500 [2023-12-02 13:41:14,763 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 20 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2023-12-02 13:41:14,764 INFO L413 NwaCegarLoop]: 587 mSDtfsCounter, 6 mSDsluCounter, 1969 mSDsCounter, 0 mSdLazyCounter, 827 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 2556 SdHoareTripleChecker+Invalid, 828 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 827 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2023-12-02 13:41:14,765 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 2556 Invalid, 828 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 827 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time] [2023-12-02 13:41:14,766 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 500 states. [2023-12-02 13:41:14,789 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 500 to 500. [2023-12-02 13:41:14,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 500 states, 377 states have (on average 1.546419098143236) internal successors, (583), 439 states have internal predecessors, (583), 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 13:41:14,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 500 states to 500 states and 681 transitions. [2023-12-02 13:41:14,795 INFO L78 Accepts]: Start accepts. Automaton has 500 states and 681 transitions. Word has length 10 [2023-12-02 13:41:14,795 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 13:41:14,796 INFO L495 AbstractCegarLoop]: Abstraction has 500 states and 681 transitions. [2023-12-02 13:41:14,796 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 13:41:14,796 INFO L276 IsEmpty]: Start isEmpty. Operand 500 states and 681 transitions. [2023-12-02 13:41:14,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-12-02 13:41:14,797 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 13:41:14,797 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 13:41:14,804 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12de7233-5993-40ef-a6aa-4a9ed282749c/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2023-12-02 13:41:14,997 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12de7233-5993-40ef-a6aa-4a9ed282749c/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 13:41:14,998 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [vasprintfErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, vasprintfErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, remove_fileErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 59 more)] === [2023-12-02 13:41:14,998 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 13:41:14,998 INFO L85 PathProgramCache]: Analyzing trace with hash -374276295, now seen corresponding path program 1 times [2023-12-02 13:41:14,999 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 13:41:14,999 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [94885864] [2023-12-02 13:41:14,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:41:14,999 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 13:41:15,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:41:15,138 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 13:41:15,138 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 13:41:15,138 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [94885864] [2023-12-02 13:41:15,138 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [94885864] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 13:41:15,138 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [930437768] [2023-12-02 13:41:15,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:41:15,139 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 13:41:15,139 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12de7233-5993-40ef-a6aa-4a9ed282749c/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 13:41:15,140 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12de7233-5993-40ef-a6aa-4a9ed282749c/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 13:41:15,144 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12de7233-5993-40ef-a6aa-4a9ed282749c/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-12-02 13:41:15,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:41:15,426 INFO L262 TraceCheckSpWp]: Trace formula consists of 463 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-02 13:41:15,428 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 13:41:15,440 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 13:41:15,440 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 13:41:15,440 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [930437768] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 13:41:15,440 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-02 13:41:15,440 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2023-12-02 13:41:15,441 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1441344553] [2023-12-02 13:41:15,441 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 13:41:15,441 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 13:41:15,441 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 13:41:15,442 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 13:41:15,442 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-02 13:41:15,442 INFO L87 Difference]: Start difference. First operand 500 states and 681 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 13:41:15,728 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 13:41:15,728 INFO L93 Difference]: Finished difference Result 500 states and 681 transitions. [2023-12-02 13:41:15,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 13:41:15,729 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 13:41:15,729 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 13:41:15,733 INFO L225 Difference]: With dead ends: 500 [2023-12-02 13:41:15,733 INFO L226 Difference]: Without dead ends: 499 [2023-12-02 13:41:15,733 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 13:41:15,734 INFO L413 NwaCegarLoop]: 589 mSDtfsCounter, 7 mSDsluCounter, 584 mSDsCounter, 0 mSdLazyCounter, 172 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 1173 SdHoareTripleChecker+Invalid, 173 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 172 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-02 13:41:15,735 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 1173 Invalid, 173 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 172 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-02 13:41:15,737 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 499 states. [2023-12-02 13:41:15,759 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 499 to 499. [2023-12-02 13:41:15,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 499 states, 377 states have (on average 1.5437665782493368) internal successors, (582), 438 states have internal predecessors, (582), 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 13:41:15,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 499 states to 499 states and 680 transitions. [2023-12-02 13:41:15,765 INFO L78 Accepts]: Start accepts. Automaton has 499 states and 680 transitions. Word has length 15 [2023-12-02 13:41:15,765 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 13:41:15,765 INFO L495 AbstractCegarLoop]: Abstraction has 499 states and 680 transitions. [2023-12-02 13:41:15,765 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 13:41:15,765 INFO L276 IsEmpty]: Start isEmpty. Operand 499 states and 680 transitions. [2023-12-02 13:41:15,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-12-02 13:41:15,766 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 13:41:15,766 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 13:41:15,774 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12de7233-5993-40ef-a6aa-4a9ed282749c/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-12-02 13:41:15,972 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12de7233-5993-40ef-a6aa-4a9ed282749c/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2023-12-02 13:41:15,972 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [vasprintfErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, vasprintfErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, remove_fileErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 59 more)] === [2023-12-02 13:41:15,973 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 13:41:15,973 INFO L85 PathProgramCache]: Analyzing trace with hash -374324261, now seen corresponding path program 1 times [2023-12-02 13:41:15,973 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 13:41:15,973 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1246214752] [2023-12-02 13:41:15,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:41:15,974 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 13:41:16,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:41:16,135 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 13:41:16,136 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 13:41:16,136 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1246214752] [2023-12-02 13:41:16,136 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1246214752] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 13:41:16,136 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [973331447] [2023-12-02 13:41:16,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:41:16,137 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 13:41:16,137 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12de7233-5993-40ef-a6aa-4a9ed282749c/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 13:41:16,138 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12de7233-5993-40ef-a6aa-4a9ed282749c/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 13:41:16,141 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12de7233-5993-40ef-a6aa-4a9ed282749c/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-12-02 13:41:16,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:41:16,477 INFO L262 TraceCheckSpWp]: Trace formula consists of 477 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-02 13:41:16,478 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 13:41:16,487 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 13:41:16,487 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 13:41:16,487 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [973331447] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 13:41:16,487 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-02 13:41:16,487 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2023-12-02 13:41:16,488 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [749299853] [2023-12-02 13:41:16,488 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 13:41:16,488 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 13:41:16,488 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 13:41:16,489 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 13:41:16,489 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-02 13:41:16,489 INFO L87 Difference]: Start difference. First operand 499 states and 680 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 13:41:16,732 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 13:41:16,732 INFO L93 Difference]: Finished difference Result 499 states and 680 transitions. [2023-12-02 13:41:16,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 13:41:16,732 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 13:41:16,733 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 13:41:16,736 INFO L225 Difference]: With dead ends: 499 [2023-12-02 13:41:16,736 INFO L226 Difference]: Without dead ends: 498 [2023-12-02 13:41:16,737 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 13:41:16,738 INFO L413 NwaCegarLoop]: 589 mSDtfsCounter, 2 mSDsluCounter, 588 mSDsCounter, 0 mSdLazyCounter, 172 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 1177 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 13:41:16,738 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 1177 Invalid, 173 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 172 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-02 13:41:16,740 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 498 states. [2023-12-02 13:41:16,760 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 498 to 498. [2023-12-02 13:41:16,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 498 states, 377 states have (on average 1.5411140583554377) internal successors, (581), 437 states have internal predecessors, (581), 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 13:41:16,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 498 states to 498 states and 679 transitions. [2023-12-02 13:41:16,766 INFO L78 Accepts]: Start accepts. Automaton has 498 states and 679 transitions. Word has length 15 [2023-12-02 13:41:16,766 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 13:41:16,766 INFO L495 AbstractCegarLoop]: Abstraction has 498 states and 679 transitions. [2023-12-02 13:41:16,766 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 13:41:16,766 INFO L276 IsEmpty]: Start isEmpty. Operand 498 states and 679 transitions. [2023-12-02 13:41:16,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2023-12-02 13:41:16,767 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 13:41:16,767 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 13:41:16,775 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12de7233-5993-40ef-a6aa-4a9ed282749c/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-12-02 13:41:16,968 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12de7233-5993-40ef-a6aa-4a9ed282749c/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 13:41:16,968 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [vasprintfErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, vasprintfErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, remove_fileErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 59 more)] === [2023-12-02 13:41:16,968 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 13:41:16,969 INFO L85 PathProgramCache]: Analyzing trace with hash 1282337581, now seen corresponding path program 1 times [2023-12-02 13:41:16,969 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 13:41:16,969 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1776590861] [2023-12-02 13:41:16,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:41:16,969 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 13:41:17,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:41:17,122 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 13:41:17,123 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 13:41:17,123 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1776590861] [2023-12-02 13:41:17,123 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1776590861] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 13:41:17,123 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [910047300] [2023-12-02 13:41:17,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:41:17,124 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 13:41:17,124 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12de7233-5993-40ef-a6aa-4a9ed282749c/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 13:41:17,125 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12de7233-5993-40ef-a6aa-4a9ed282749c/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 13:41:17,140 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12de7233-5993-40ef-a6aa-4a9ed282749c/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-12-02 13:41:17,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:41:17,439 INFO L262 TraceCheckSpWp]: Trace formula consists of 464 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-02 13:41:17,441 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 13:41:17,451 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 13:41:17,451 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 13:41:17,452 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [910047300] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 13:41:17,452 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-02 13:41:17,452 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2023-12-02 13:41:17,452 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [392181431] [2023-12-02 13:41:17,452 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 13:41:17,452 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 13:41:17,453 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 13:41:17,453 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 13:41:17,453 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-02 13:41:17,453 INFO L87 Difference]: Start difference. First operand 498 states and 679 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 13:41:17,749 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 13:41:17,749 INFO L93 Difference]: Finished difference Result 506 states and 689 transitions. [2023-12-02 13:41:17,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 13:41:17,750 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 13:41:17,750 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 13:41:17,753 INFO L225 Difference]: With dead ends: 506 [2023-12-02 13:41:17,753 INFO L226 Difference]: Without dead ends: 505 [2023-12-02 13:41:17,754 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 13:41:17,754 INFO L413 NwaCegarLoop]: 589 mSDtfsCounter, 4 mSDsluCounter, 587 mSDsCounter, 0 mSdLazyCounter, 177 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 1176 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 13:41:17,754 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 1176 Invalid, 177 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 177 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-02 13:41:17,756 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 505 states. [2023-12-02 13:41:17,774 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 505 to 504. [2023-12-02 13:41:17,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 504 states, 383 states have (on average 1.5404699738903394) internal successors, (590), 443 states have internal predecessors, (590), 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 13:41:17,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 504 states to 504 states and 688 transitions. [2023-12-02 13:41:17,779 INFO L78 Accepts]: Start accepts. Automaton has 504 states and 688 transitions. Word has length 16 [2023-12-02 13:41:17,779 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 13:41:17,780 INFO L495 AbstractCegarLoop]: Abstraction has 504 states and 688 transitions. [2023-12-02 13:41:17,780 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 13:41:17,780 INFO L276 IsEmpty]: Start isEmpty. Operand 504 states and 688 transitions. [2023-12-02 13:41:17,780 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2023-12-02 13:41:17,781 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 13:41:17,781 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 13:41:17,788 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12de7233-5993-40ef-a6aa-4a9ed282749c/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2023-12-02 13:41:17,988 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12de7233-5993-40ef-a6aa-4a9ed282749c/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 13:41:17,988 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [vasprintfErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, vasprintfErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, remove_fileErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 59 more)] === [2023-12-02 13:41:17,989 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 13:41:17,989 INFO L85 PathProgramCache]: Analyzing trace with hash 1280850626, now seen corresponding path program 1 times [2023-12-02 13:41:17,989 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 13:41:17,989 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1253638737] [2023-12-02 13:41:17,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:41:17,990 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 13:41:18,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:41:18,136 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 13:41:18,136 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 13:41:18,137 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1253638737] [2023-12-02 13:41:18,137 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1253638737] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 13:41:18,137 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [41630034] [2023-12-02 13:41:18,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:41:18,137 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 13:41:18,138 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12de7233-5993-40ef-a6aa-4a9ed282749c/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 13:41:18,139 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12de7233-5993-40ef-a6aa-4a9ed282749c/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 13:41:18,144 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12de7233-5993-40ef-a6aa-4a9ed282749c/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-12-02 13:41:18,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:41:18,467 INFO L262 TraceCheckSpWp]: Trace formula consists of 478 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-02 13:41:18,468 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 13:41:18,476 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 13:41:18,476 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 13:41:18,476 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [41630034] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 13:41:18,476 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-02 13:41:18,476 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2023-12-02 13:41:18,476 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1341545153] [2023-12-02 13:41:18,477 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 13:41:18,477 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 13:41:18,477 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 13:41:18,477 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 13:41:18,478 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-02 13:41:18,478 INFO L87 Difference]: Start difference. First operand 504 states and 688 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 13:41:18,787 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 13:41:18,787 INFO L93 Difference]: Finished difference Result 998 states and 1366 transitions. [2023-12-02 13:41:18,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 13:41:18,788 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 13:41:18,788 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 13:41:18,791 INFO L225 Difference]: With dead ends: 998 [2023-12-02 13:41:18,792 INFO L226 Difference]: Without dead ends: 510 [2023-12-02 13:41:18,794 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 13:41:18,794 INFO L413 NwaCegarLoop]: 590 mSDtfsCounter, 0 mSDsluCounter, 588 mSDsCounter, 0 mSdLazyCounter, 175 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1178 SdHoareTripleChecker+Invalid, 176 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 175 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-02 13:41:18,795 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1178 Invalid, 176 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 175 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-02 13:41:18,796 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 510 states. [2023-12-02 13:41:18,815 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 510 to 510. [2023-12-02 13:41:18,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 510 states, 389 states have (on average 1.532133676092545) internal successors, (596), 449 states have internal predecessors, (596), 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 13:41:18,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 510 states to 510 states and 694 transitions. [2023-12-02 13:41:18,821 INFO L78 Accepts]: Start accepts. Automaton has 510 states and 694 transitions. Word has length 16 [2023-12-02 13:41:18,821 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 13:41:18,821 INFO L495 AbstractCegarLoop]: Abstraction has 510 states and 694 transitions. [2023-12-02 13:41:18,822 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 13:41:18,822 INFO L276 IsEmpty]: Start isEmpty. Operand 510 states and 694 transitions. [2023-12-02 13:41:18,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2023-12-02 13:41:18,843 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 13:41:18,844 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 13:41:18,852 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12de7233-5993-40ef-a6aa-4a9ed282749c/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-12-02 13:41:19,048 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12de7233-5993-40ef-a6aa-4a9ed282749c/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2023-12-02 13:41:19,049 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [vasprintfErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, vasprintfErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, remove_fileErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 59 more)] === [2023-12-02 13:41:19,049 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 13:41:19,049 INFO L85 PathProgramCache]: Analyzing trace with hash 1327376288, now seen corresponding path program 1 times [2023-12-02 13:41:19,050 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 13:41:19,050 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [172043804] [2023-12-02 13:41:19,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:41:19,050 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 13:41:19,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:41:19,170 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 13:41:19,171 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 13:41:19,171 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [172043804] [2023-12-02 13:41:19,171 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [172043804] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 13:41:19,171 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1902369891] [2023-12-02 13:41:19,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:41:19,172 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 13:41:19,172 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12de7233-5993-40ef-a6aa-4a9ed282749c/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 13:41:19,173 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12de7233-5993-40ef-a6aa-4a9ed282749c/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 13:41:19,175 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12de7233-5993-40ef-a6aa-4a9ed282749c/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-12-02 13:41:19,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:41:19,466 INFO L262 TraceCheckSpWp]: Trace formula consists of 501 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-02 13:41:19,469 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 13:41:19,478 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 13:41:19,478 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 13:41:19,478 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1902369891] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 13:41:19,479 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-02 13:41:19,479 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2023-12-02 13:41:19,479 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [727443021] [2023-12-02 13:41:19,479 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 13:41:19,479 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 13:41:19,479 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 13:41:19,480 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 13:41:19,480 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-02 13:41:19,480 INFO L87 Difference]: Start difference. First operand 510 states and 694 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 13:41:19,703 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 13:41:19,704 INFO L93 Difference]: Finished difference Result 514 states and 700 transitions. [2023-12-02 13:41:19,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 13:41:19,704 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 13:41:19,705 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 13:41:19,707 INFO L225 Difference]: With dead ends: 514 [2023-12-02 13:41:19,707 INFO L226 Difference]: Without dead ends: 513 [2023-12-02 13:41:19,708 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 13:41:19,708 INFO L413 NwaCegarLoop]: 584 mSDtfsCounter, 260 mSDsluCounter, 357 mSDsCounter, 0 mSdLazyCounter, 143 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 268 SdHoareTripleChecker+Valid, 941 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 13:41:19,709 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [268 Valid, 941 Invalid, 144 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 143 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-02 13:41:19,710 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 513 states. [2023-12-02 13:41:19,724 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 513 to 509. [2023-12-02 13:41:19,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 509 states, 389 states have (on average 1.5295629820051413) internal successors, (595), 448 states have internal predecessors, (595), 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 13:41:19,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 509 states to 509 states and 693 transitions. [2023-12-02 13:41:19,730 INFO L78 Accepts]: Start accepts. Automaton has 509 states and 693 transitions. Word has length 16 [2023-12-02 13:41:19,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 13:41:19,730 INFO L495 AbstractCegarLoop]: Abstraction has 509 states and 693 transitions. [2023-12-02 13:41:19,730 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 13:41:19,731 INFO L276 IsEmpty]: Start isEmpty. Operand 509 states and 693 transitions. [2023-12-02 13:41:19,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-12-02 13:41:19,731 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 13:41:19,731 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 13:41:19,739 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12de7233-5993-40ef-a6aa-4a9ed282749c/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2023-12-02 13:41:19,939 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12de7233-5993-40ef-a6aa-4a9ed282749c/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2023-12-02 13:41:19,939 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [vasprintfErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, vasprintfErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, remove_fileErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 59 more)] === [2023-12-02 13:41:19,940 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 13:41:19,940 INFO L85 PathProgramCache]: Analyzing trace with hash -1801007176, now seen corresponding path program 1 times [2023-12-02 13:41:19,940 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 13:41:19,940 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1836939334] [2023-12-02 13:41:19,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:41:19,940 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 13:41:19,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:41:20,076 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 13:41:20,076 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 13:41:20,076 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1836939334] [2023-12-02 13:41:20,076 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1836939334] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 13:41:20,076 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1507726931] [2023-12-02 13:41:20,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:41:20,077 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 13:41:20,077 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12de7233-5993-40ef-a6aa-4a9ed282749c/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 13:41:20,078 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12de7233-5993-40ef-a6aa-4a9ed282749c/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 13:41:20,084 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12de7233-5993-40ef-a6aa-4a9ed282749c/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-12-02 13:41:20,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:41:20,440 INFO L262 TraceCheckSpWp]: Trace formula consists of 502 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-02 13:41:20,442 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 13:41:20,453 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 13:41:20,453 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 13:41:20,453 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1507726931] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 13:41:20,453 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-02 13:41:20,453 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2023-12-02 13:41:20,454 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [918304811] [2023-12-02 13:41:20,454 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 13:41:20,454 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 13:41:20,454 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 13:41:20,455 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 13:41:20,455 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-02 13:41:20,455 INFO L87 Difference]: Start difference. First operand 509 states and 693 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 13:41:20,800 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 13:41:20,800 INFO L93 Difference]: Finished difference Result 711 states and 977 transitions. [2023-12-02 13:41:20,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 13:41:20,801 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 13:41:20,801 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 13:41:20,805 INFO L225 Difference]: With dead ends: 711 [2023-12-02 13:41:20,805 INFO L226 Difference]: Without dead ends: 710 [2023-12-02 13:41:20,805 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 13:41:20,806 INFO L413 NwaCegarLoop]: 585 mSDtfsCounter, 258 mSDsluCounter, 580 mSDsCounter, 0 mSdLazyCounter, 186 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 266 SdHoareTripleChecker+Valid, 1165 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 13:41:20,806 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [266 Valid, 1165 Invalid, 186 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 186 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-02 13:41:20,808 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 710 states. [2023-12-02 13:41:20,824 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 710 to 513. [2023-12-02 13:41:20,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 513 states, 393 states have (on average 1.5267175572519085) internal successors, (600), 452 states have internal predecessors, (600), 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 13:41:20,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 513 states to 513 states and 698 transitions. [2023-12-02 13:41:20,828 INFO L78 Accepts]: Start accepts. Automaton has 513 states and 698 transitions. Word has length 17 [2023-12-02 13:41:20,828 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 13:41:20,829 INFO L495 AbstractCegarLoop]: Abstraction has 513 states and 698 transitions. [2023-12-02 13:41:20,829 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 13:41:20,829 INFO L276 IsEmpty]: Start isEmpty. Operand 513 states and 698 transitions. [2023-12-02 13:41:20,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2023-12-02 13:41:20,830 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 13:41:20,830 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 13:41:20,837 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12de7233-5993-40ef-a6aa-4a9ed282749c/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2023-12-02 13:41:21,031 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12de7233-5993-40ef-a6aa-4a9ed282749c/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2023-12-02 13:41:21,031 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [vasprintfErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, vasprintfErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, remove_fileErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 59 more)] === [2023-12-02 13:41:21,032 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 13:41:21,032 INFO L85 PathProgramCache]: Analyzing trace with hash 1332359832, now seen corresponding path program 1 times [2023-12-02 13:41:21,032 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 13:41:21,032 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [922643929] [2023-12-02 13:41:21,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:41:21,033 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 13:41:21,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:41:21,178 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 13:41:21,178 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 13:41:21,178 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [922643929] [2023-12-02 13:41:21,178 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [922643929] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 13:41:21,179 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [162071503] [2023-12-02 13:41:21,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:41:21,179 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 13:41:21,179 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12de7233-5993-40ef-a6aa-4a9ed282749c/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 13:41:21,181 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12de7233-5993-40ef-a6aa-4a9ed282749c/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 13:41:21,185 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12de7233-5993-40ef-a6aa-4a9ed282749c/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-12-02 13:41:21,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:41:21,515 INFO L262 TraceCheckSpWp]: Trace formula consists of 497 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-02 13:41:21,517 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 13:41:21,525 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 13:41:21,525 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 13:41:21,525 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [162071503] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 13:41:21,525 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-02 13:41:21,526 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2023-12-02 13:41:21,526 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1386426412] [2023-12-02 13:41:21,526 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 13:41:21,526 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 13:41:21,526 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 13:41:21,527 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 13:41:21,527 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-02 13:41:21,527 INFO L87 Difference]: Start difference. First operand 513 states and 698 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 13:41:21,787 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 13:41:21,787 INFO L93 Difference]: Finished difference Result 513 states and 698 transitions. [2023-12-02 13:41:21,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 13:41:21,788 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 13:41:21,788 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 13:41:21,791 INFO L225 Difference]: With dead ends: 513 [2023-12-02 13:41:21,792 INFO L226 Difference]: Without dead ends: 512 [2023-12-02 13:41:21,792 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 13:41:21,793 INFO L413 NwaCegarLoop]: 588 mSDtfsCounter, 0 mSDsluCounter, 587 mSDsCounter, 0 mSdLazyCounter, 172 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1175 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 13:41:21,793 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1175 Invalid, 173 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 172 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-02 13:41:21,795 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 512 states. [2023-12-02 13:41:21,808 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 512 to 508. [2023-12-02 13:41:21,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 508 states, 389 states have (on average 1.5269922879177378) internal successors, (594), 447 states have internal predecessors, (594), 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 13:41:21,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 508 states to 508 states and 692 transitions. [2023-12-02 13:41:21,812 INFO L78 Accepts]: Start accepts. Automaton has 508 states and 692 transitions. Word has length 19 [2023-12-02 13:41:21,812 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 13:41:21,812 INFO L495 AbstractCegarLoop]: Abstraction has 508 states and 692 transitions. [2023-12-02 13:41:21,813 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 13:41:21,813 INFO L276 IsEmpty]: Start isEmpty. Operand 508 states and 692 transitions. [2023-12-02 13:41:21,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2023-12-02 13:41:21,814 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 13:41:21,814 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 13:41:21,821 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12de7233-5993-40ef-a6aa-4a9ed282749c/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2023-12-02 13:41:22,016 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12de7233-5993-40ef-a6aa-4a9ed282749c/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2023-12-02 13:41:22,016 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [vasprintfErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, vasprintfErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, remove_fileErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 59 more)] === [2023-12-02 13:41:22,017 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 13:41:22,017 INFO L85 PathProgramCache]: Analyzing trace with hash 1112910591, now seen corresponding path program 1 times [2023-12-02 13:41:22,017 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 13:41:22,017 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [170991170] [2023-12-02 13:41:22,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:41:22,017 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 13:41:22,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:41:22,141 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 13:41:22,142 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 13:41:22,142 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [170991170] [2023-12-02 13:41:22,142 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [170991170] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 13:41:22,142 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2028691183] [2023-12-02 13:41:22,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:41:22,143 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 13:41:22,143 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12de7233-5993-40ef-a6aa-4a9ed282749c/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 13:41:22,144 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12de7233-5993-40ef-a6aa-4a9ed282749c/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 13:41:22,147 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12de7233-5993-40ef-a6aa-4a9ed282749c/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2023-12-02 13:41:22,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:41:22,466 INFO L262 TraceCheckSpWp]: Trace formula consists of 511 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-02 13:41:22,468 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 13:41:22,479 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 13:41:22,479 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 13:41:22,503 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 13:41:22,503 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2028691183] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 13:41:22,504 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1687620016] [2023-12-02 13:41:22,506 INFO L159 IcfgInterpreter]: Started Sifa with 17 locations of interest [2023-12-02 13:41:22,507 INFO L166 IcfgInterpreter]: Building call graph [2023-12-02 13:41:22,507 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-12-02 13:41:22,507 INFO L176 IcfgInterpreter]: Starting interpretation [2023-12-02 13:41:22,507 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-12-02 13:41:27,529 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 119 for LOIs [2023-12-02 13:41:27,558 INFO L180 IcfgInterpreter]: Interpretation finished [2023-12-02 13:41:29,897 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [1687620016] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 13:41:29,897 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2023-12-02 13:41:29,897 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [4, 3, 4] total 15 [2023-12-02 13:41:29,898 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1940373507] [2023-12-02 13:41:29,898 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 13:41:29,898 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-02 13:41:29,898 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 13:41:29,899 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-02 13:41:29,899 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=165, Unknown=1, NotChecked=0, Total=210 [2023-12-02 13:41:29,899 INFO L87 Difference]: Start difference. First operand 508 states and 692 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 13:41:32,175 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 13:41:38,233 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 13:41:38,234 INFO L93 Difference]: Finished difference Result 989 states and 1352 transitions. [2023-12-02 13:41:38,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-02 13:41:38,234 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 13:41:38,234 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 13:41:38,237 INFO L225 Difference]: With dead ends: 989 [2023-12-02 13:41:38,238 INFO L226 Difference]: Without dead ends: 508 [2023-12-02 13:41:38,240 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 51 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=44, Invalid=165, Unknown=1, NotChecked=0, Total=210 [2023-12-02 13:41:38,240 INFO L413 NwaCegarLoop]: 582 mSDtfsCounter, 2 mSDsluCounter, 2389 mSDsCounter, 0 mSdLazyCounter, 1071 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 2971 SdHoareTripleChecker+Invalid, 1072 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1071 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.3s IncrementalHoareTripleChecker+Time [2023-12-02 13:41:38,241 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 2971 Invalid, 1072 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1071 Invalid, 1 Unknown, 0 Unchecked, 8.3s Time] [2023-12-02 13:41:38,242 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 508 states. [2023-12-02 13:41:38,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 508 to 508. [2023-12-02 13:41:38,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 508 states, 389 states have (on average 1.5244215938303343) internal successors, (593), 447 states have internal predecessors, (593), 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 13:41:38,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 508 states to 508 states and 691 transitions. [2023-12-02 13:41:38,261 INFO L78 Accepts]: Start accepts. Automaton has 508 states and 691 transitions. Word has length 21 [2023-12-02 13:41:38,261 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 13:41:38,262 INFO L495 AbstractCegarLoop]: Abstraction has 508 states and 691 transitions. [2023-12-02 13:41:38,262 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 13:41:38,262 INFO L276 IsEmpty]: Start isEmpty. Operand 508 states and 691 transitions. [2023-12-02 13:41:38,263 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2023-12-02 13:41:38,263 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 13:41:38,263 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 13:41:38,270 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12de7233-5993-40ef-a6aa-4a9ed282749c/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2023-12-02 13:41:38,469 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12de7233-5993-40ef-a6aa-4a9ed282749c/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2023-12-02 13:41:38,470 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [vasprintfErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, vasprintfErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, remove_fileErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 59 more)] === [2023-12-02 13:41:38,470 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 13:41:38,470 INFO L85 PathProgramCache]: Analyzing trace with hash 1845843192, now seen corresponding path program 1 times [2023-12-02 13:41:38,470 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 13:41:38,471 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [131184475] [2023-12-02 13:41:38,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:41:38,471 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 13:41:38,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:41:38,621 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 13:41:38,621 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 13:41:38,621 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [131184475] [2023-12-02 13:41:38,621 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [131184475] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 13:41:38,621 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [829055425] [2023-12-02 13:41:38,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:41:38,622 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 13:41:38,622 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12de7233-5993-40ef-a6aa-4a9ed282749c/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 13:41:38,623 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12de7233-5993-40ef-a6aa-4a9ed282749c/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 13:41:38,626 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12de7233-5993-40ef-a6aa-4a9ed282749c/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2023-12-02 13:41:38,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:41:38,937 INFO L262 TraceCheckSpWp]: Trace formula consists of 552 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-02 13:41:38,938 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 13:41:38,950 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 13:41:38,950 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 13:41:38,968 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 13:41:38,969 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [829055425] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 13:41:38,969 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [343885052] [2023-12-02 13:41:38,971 INFO L159 IcfgInterpreter]: Started Sifa with 18 locations of interest [2023-12-02 13:41:38,971 INFO L166 IcfgInterpreter]: Building call graph [2023-12-02 13:41:38,971 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-12-02 13:41:38,971 INFO L176 IcfgInterpreter]: Starting interpretation [2023-12-02 13:41:38,971 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-12-02 13:41:59,373 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 119 for LOIs [2023-12-02 13:41:59,406 INFO L180 IcfgInterpreter]: Interpretation finished [2023-12-02 13:42:02,011 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '19151#(<= 2147483647 |ULTIMATE.start_main_~i~6#1|)' at error location [2023-12-02 13:42:02,011 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2023-12-02 13:42:02,011 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-02 13:42:02,011 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 3, 4] total 7 [2023-12-02 13:42:02,012 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [302936823] [2023-12-02 13:42:02,012 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-02 13:42:02,012 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-02 13:42:02,013 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 13:42:02,013 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-02 13:42:02,014 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=289, Unknown=0, NotChecked=0, Total=342 [2023-12-02 13:42:02,014 INFO L87 Difference]: Start difference. First operand 508 states and 691 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 13:42:02,423 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 13:42:02,423 INFO L93 Difference]: Finished difference Result 1020 states and 1388 transitions. [2023-12-02 13:42:02,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-02 13:42:02,424 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 13:42:02,424 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 13:42:02,428 INFO L225 Difference]: With dead ends: 1020 [2023-12-02 13:42:02,428 INFO L226 Difference]: Without dead ends: 517 [2023-12-02 13:42:02,430 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 62 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 106 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=53, Invalid=289, Unknown=0, NotChecked=0, Total=342 [2023-12-02 13:42:02,431 INFO L413 NwaCegarLoop]: 588 mSDtfsCounter, 4 mSDsluCounter, 1764 mSDsCounter, 0 mSdLazyCounter, 346 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 2352 SdHoareTripleChecker+Invalid, 348 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 346 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-02 13:42:02,431 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 2352 Invalid, 348 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 346 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-02 13:42:02,433 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 517 states. [2023-12-02 13:42:02,458 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 517 to 517. [2023-12-02 13:42:02,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 517 states, 398 states have (on average 1.5125628140703518) internal successors, (602), 456 states have internal predecessors, (602), 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 13:42:02,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 517 states to 517 states and 700 transitions. [2023-12-02 13:42:02,463 INFO L78 Accepts]: Start accepts. Automaton has 517 states and 700 transitions. Word has length 26 [2023-12-02 13:42:02,463 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 13:42:02,463 INFO L495 AbstractCegarLoop]: Abstraction has 517 states and 700 transitions. [2023-12-02 13:42:02,464 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 13:42:02,464 INFO L276 IsEmpty]: Start isEmpty. Operand 517 states and 700 transitions. [2023-12-02 13:42:02,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2023-12-02 13:42:02,465 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 13:42:02,465 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 13:42:02,475 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12de7233-5993-40ef-a6aa-4a9ed282749c/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2023-12-02 13:42:02,668 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12de7233-5993-40ef-a6aa-4a9ed282749c/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2023-12-02 13:42:02,668 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [vasprintfErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, vasprintfErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, remove_fileErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 59 more)] === [2023-12-02 13:42:02,669 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 13:42:02,669 INFO L85 PathProgramCache]: Analyzing trace with hash 2138004992, now seen corresponding path program 2 times [2023-12-02 13:42:02,669 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 13:42:02,669 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2068060970] [2023-12-02 13:42:02,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:42:02,669 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 13:42:02,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:42:02,878 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 13:42:02,878 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 13:42:02,878 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2068060970] [2023-12-02 13:42:02,879 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2068060970] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 13:42:02,879 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1881523057] [2023-12-02 13:42:02,879 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-12-02 13:42:02,879 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 13:42:02,879 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12de7233-5993-40ef-a6aa-4a9ed282749c/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 13:42:02,881 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12de7233-5993-40ef-a6aa-4a9ed282749c/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 13:42:02,883 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12de7233-5993-40ef-a6aa-4a9ed282749c/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2023-12-02 13:42:03,253 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2023-12-02 13:42:03,254 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-02 13:42:03,256 INFO L262 TraceCheckSpWp]: Trace formula consists of 445 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-02 13:42:03,258 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 13:42:03,297 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 13:42:03,298 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 13:42:03,341 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 13:42:03,341 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1881523057] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 13:42:03,341 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [756074589] [2023-12-02 13:42:03,344 INFO L159 IcfgInterpreter]: Started Sifa with 18 locations of interest [2023-12-02 13:42:03,345 INFO L166 IcfgInterpreter]: Building call graph [2023-12-02 13:42:03,345 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-12-02 13:42:03,345 INFO L176 IcfgInterpreter]: Starting interpretation [2023-12-02 13:42:03,345 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-12-02 13:42:23,426 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 119 for LOIs [2023-12-02 13:42:23,450 INFO L180 IcfgInterpreter]: Interpretation finished [2023-12-02 13:42:26,022 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '21240#(<= 2147483647 |ULTIMATE.start_main_~i~6#1|)' at error location [2023-12-02 13:42:26,022 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2023-12-02 13:42:26,022 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-02 13:42:26,023 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 3, 3] total 8 [2023-12-02 13:42:26,023 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [951120127] [2023-12-02 13:42:26,023 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-02 13:42:26,024 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-02 13:42:26,024 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 13:42:26,024 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-02 13:42:26,025 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=325, Unknown=1, NotChecked=0, Total=380 [2023-12-02 13:42:26,025 INFO L87 Difference]: Start difference. First operand 517 states and 700 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 13:42:26,773 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 13:42:26,773 INFO L93 Difference]: Finished difference Result 1017 states and 1384 transitions. [2023-12-02 13:42:26,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-02 13:42:26,774 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 13:42:26,774 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 13:42:26,778 INFO L225 Difference]: With dead ends: 1017 [2023-12-02 13:42:26,778 INFO L226 Difference]: Without dead ends: 526 [2023-12-02 13:42:26,781 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 86 SyntacticMatches, 4 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 105 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=87, Invalid=463, Unknown=2, NotChecked=0, Total=552 [2023-12-02 13:42:26,781 INFO L413 NwaCegarLoop]: 579 mSDtfsCounter, 607 mSDsluCounter, 2625 mSDsCounter, 0 mSdLazyCounter, 499 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 620 SdHoareTripleChecker+Valid, 3204 SdHoareTripleChecker+Invalid, 514 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 499 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-02 13:42:26,782 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [620 Valid, 3204 Invalid, 514 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 499 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-02 13:42:26,784 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 526 states. [2023-12-02 13:42:26,809 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 526 to 513. [2023-12-02 13:42:26,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 513 states, 395 states have (on average 1.5113924050632912) internal successors, (597), 452 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 13:42:26,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 513 states to 513 states and 695 transitions. [2023-12-02 13:42:26,814 INFO L78 Accepts]: Start accepts. Automaton has 513 states and 695 transitions. Word has length 35 [2023-12-02 13:42:26,814 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 13:42:26,815 INFO L495 AbstractCegarLoop]: Abstraction has 513 states and 695 transitions. [2023-12-02 13:42:26,815 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 13:42:26,815 INFO L276 IsEmpty]: Start isEmpty. Operand 513 states and 695 transitions. [2023-12-02 13:42:26,816 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2023-12-02 13:42:26,816 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 13:42:26,816 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 13:42:26,824 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12de7233-5993-40ef-a6aa-4a9ed282749c/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2023-12-02 13:42:27,020 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12de7233-5993-40ef-a6aa-4a9ed282749c/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2023-12-02 13:42:27,020 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [vasprintfErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, vasprintfErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, remove_fileErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 59 more)] === [2023-12-02 13:42:27,021 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 13:42:27,021 INFO L85 PathProgramCache]: Analyzing trace with hash 972994178, now seen corresponding path program 1 times [2023-12-02 13:42:27,021 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 13:42:27,021 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [23167129] [2023-12-02 13:42:27,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:42:27,022 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 13:42:27,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:42:27,214 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 13:42:27,214 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 13:42:27,215 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [23167129] [2023-12-02 13:42:27,215 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [23167129] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 13:42:27,215 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1887120343] [2023-12-02 13:42:27,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:42:27,215 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 13:42:27,215 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12de7233-5993-40ef-a6aa-4a9ed282749c/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 13:42:27,217 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12de7233-5993-40ef-a6aa-4a9ed282749c/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 13:42:27,220 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12de7233-5993-40ef-a6aa-4a9ed282749c/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2023-12-02 13:42:27,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:42:27,633 INFO L262 TraceCheckSpWp]: Trace formula consists of 656 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-02 13:42:27,635 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 13:42:27,687 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 13:42:27,687 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 13:42:27,761 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 13:42:27,761 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1887120343] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 13:42:27,761 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [451775163] [2023-12-02 13:42:27,763 INFO L159 IcfgInterpreter]: Started Sifa with 22 locations of interest [2023-12-02 13:42:27,764 INFO L166 IcfgInterpreter]: Building call graph [2023-12-02 13:42:27,764 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-12-02 13:42:27,764 INFO L176 IcfgInterpreter]: Starting interpretation [2023-12-02 13:42:27,764 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-12-02 13:42:46,527 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 119 for LOIs [2023-12-02 13:42:46,555 INFO L180 IcfgInterpreter]: Interpretation finished [2023-12-02 13:42:51,445 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '23363#(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 13:42:51,445 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2023-12-02 13:42:51,445 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-02 13:42:51,445 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 6, 7] total 14 [2023-12-02 13:42:51,446 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1359350993] [2023-12-02 13:42:51,446 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-02 13:42:51,446 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-12-02 13:42:51,447 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 13:42:51,447 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-12-02 13:42:51,448 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=111, Invalid=700, Unknown=1, NotChecked=0, Total=812 [2023-12-02 13:42:51,448 INFO L87 Difference]: Start difference. First operand 513 states and 695 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 13:42:52,190 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 13:42:52,190 INFO L93 Difference]: Finished difference Result 1428 states and 1961 transitions. [2023-12-02 13:42:52,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-02 13:42:52,191 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 13:42:52,191 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 13:42:52,197 INFO L225 Difference]: With dead ends: 1428 [2023-12-02 13:42:52,197 INFO L226 Difference]: Without dead ends: 929 [2023-12-02 13:42:52,199 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 90 SyntacticMatches, 4 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 318 ImplicationChecksByTransitivity, 5.0s TimeCoverageRelationStatistics Valid=111, Invalid=700, Unknown=1, NotChecked=0, Total=812 [2023-12-02 13:42:52,200 INFO L413 NwaCegarLoop]: 580 mSDtfsCounter, 520 mSDsluCounter, 2907 mSDsCounter, 0 mSdLazyCounter, 597 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 536 SdHoareTripleChecker+Valid, 3487 SdHoareTripleChecker+Invalid, 599 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 597 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-02 13:42:52,200 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [536 Valid, 3487 Invalid, 599 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 597 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-02 13:42:52,202 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 929 states. [2023-12-02 13:42:52,237 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 929 to 535. [2023-12-02 13:42:52,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 535 states, 417 states have (on average 1.486810551558753) internal successors, (620), 474 states have internal predecessors, (620), 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 13:42:52,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 535 states to 535 states and 718 transitions. [2023-12-02 13:42:52,241 INFO L78 Accepts]: Start accepts. Automaton has 535 states and 718 transitions. Word has length 40 [2023-12-02 13:42:52,242 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 13:42:52,242 INFO L495 AbstractCegarLoop]: Abstraction has 535 states and 718 transitions. [2023-12-02 13:42:52,242 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 13:42:52,242 INFO L276 IsEmpty]: Start isEmpty. Operand 535 states and 718 transitions. [2023-12-02 13:42:52,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2023-12-02 13:42:52,243 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 13:42:52,243 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 13:42:52,251 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12de7233-5993-40ef-a6aa-4a9ed282749c/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2023-12-02 13:42:52,448 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15,15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12de7233-5993-40ef-a6aa-4a9ed282749c/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 13:42:52,448 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [vasprintfErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, vasprintfErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, remove_fileErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 59 more)] === [2023-12-02 13:42:52,449 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 13:42:52,449 INFO L85 PathProgramCache]: Analyzing trace with hash 1153014197, now seen corresponding path program 1 times [2023-12-02 13:42:52,449 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 13:42:52,449 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2104915857] [2023-12-02 13:42:52,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:42:52,449 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 13:42:52,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:42:52,668 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 13:42:52,668 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 13:42:52,668 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2104915857] [2023-12-02 13:42:52,668 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2104915857] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 13:42:52,668 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 13:42:52,669 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-02 13:42:52,669 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [866474777] [2023-12-02 13:42:52,669 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 13:42:52,669 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 13:42:52,669 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 13:42:52,670 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 13:42:52,670 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 13:42:52,670 INFO L87 Difference]: Start difference. First operand 535 states and 718 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 13:42:53,073 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 13:42:53,074 INFO L93 Difference]: Finished difference Result 1069 states and 1455 transitions. [2023-12-02 13:42:53,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 13:42:53,074 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 13:42:53,075 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 13:42:53,078 INFO L225 Difference]: With dead ends: 1069 [2023-12-02 13:42:53,078 INFO L226 Difference]: Without dead ends: 615 [2023-12-02 13:42:53,080 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 13:42:53,081 INFO L413 NwaCegarLoop]: 584 mSDtfsCounter, 91 mSDsluCounter, 541 mSDsCounter, 0 mSdLazyCounter, 220 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 95 SdHoareTripleChecker+Valid, 1125 SdHoareTripleChecker+Invalid, 228 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 220 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-02 13:42:53,081 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [95 Valid, 1125 Invalid, 228 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 220 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-02 13:42:53,082 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 615 states. [2023-12-02 13:42:53,105 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 615 to 572. [2023-12-02 13:42:53,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 572 states, 453 states have (on average 1.479028697571744) internal successors, (670), 510 states have internal predecessors, (670), 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 13:42:53,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 572 states to 572 states and 770 transitions. [2023-12-02 13:42:53,109 INFO L78 Accepts]: Start accepts. Automaton has 572 states and 770 transitions. Word has length 62 [2023-12-02 13:42:53,109 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 13:42:53,109 INFO L495 AbstractCegarLoop]: Abstraction has 572 states and 770 transitions. [2023-12-02 13:42:53,109 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 13:42:53,109 INFO L276 IsEmpty]: Start isEmpty. Operand 572 states and 770 transitions. [2023-12-02 13:42:53,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2023-12-02 13:42:53,110 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 13:42:53,110 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 13:42:53,110 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-12-02 13:42:53,111 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [vasprintfErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, vasprintfErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, remove_fileErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 59 more)] === [2023-12-02 13:42:53,111 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 13:42:53,111 INFO L85 PathProgramCache]: Analyzing trace with hash 1383746663, now seen corresponding path program 1 times [2023-12-02 13:42:53,111 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 13:42:53,112 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1011781353] [2023-12-02 13:42:53,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:42:53,112 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 13:42:53,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:42:53,347 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 13:42:53,347 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 13:42:53,348 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1011781353] [2023-12-02 13:42:53,348 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1011781353] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 13:42:53,348 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 13:42:53,348 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 13:42:53,348 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1433649853] [2023-12-02 13:42:53,348 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 13:42:53,349 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-02 13:42:53,349 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 13:42:53,349 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-02 13:42:53,349 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-02 13:42:53,350 INFO L87 Difference]: Start difference. First operand 572 states and 770 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 13:42:53,835 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 13:42:53,835 INFO L93 Difference]: Finished difference Result 615 states and 824 transitions. [2023-12-02 13:42:53,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-02 13:42:53,836 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 13:42:53,836 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 13:42:53,839 INFO L225 Difference]: With dead ends: 615 [2023-12-02 13:42:53,839 INFO L226 Difference]: Without dead ends: 613 [2023-12-02 13:42:53,840 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 13:42:53,840 INFO L413 NwaCegarLoop]: 606 mSDtfsCounter, 90 mSDsluCounter, 1145 mSDsCounter, 0 mSdLazyCounter, 324 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 94 SdHoareTripleChecker+Valid, 1751 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 13:42:53,840 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [94 Valid, 1751 Invalid, 326 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 324 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-02 13:42:53,842 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 613 states. [2023-12-02 13:42:53,863 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 613 to 572. [2023-12-02 13:42:53,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 572 states, 453 states have (on average 1.4746136865342163) internal successors, (668), 510 states have internal predecessors, (668), 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 13:42:53,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 572 states to 572 states and 768 transitions. [2023-12-02 13:42:53,867 INFO L78 Accepts]: Start accepts. Automaton has 572 states and 768 transitions. Word has length 63 [2023-12-02 13:42:53,867 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 13:42:53,867 INFO L495 AbstractCegarLoop]: Abstraction has 572 states and 768 transitions. [2023-12-02 13:42:53,867 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 13:42:53,868 INFO L276 IsEmpty]: Start isEmpty. Operand 572 states and 768 transitions. [2023-12-02 13:42:53,868 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2023-12-02 13:42:53,868 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 13:42:53,868 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 13:42:53,869 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-12-02 13:42:53,869 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [vasprintfErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, vasprintfErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, remove_fileErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 59 more)] === [2023-12-02 13:42:53,869 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 13:42:53,869 INFO L85 PathProgramCache]: Analyzing trace with hash 171345353, now seen corresponding path program 2 times [2023-12-02 13:42:53,869 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 13:42:53,869 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [930491357] [2023-12-02 13:42:53,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:42:53,870 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 13:42:53,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:42:54,056 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 13:42:54,056 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 13:42:54,056 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [930491357] [2023-12-02 13:42:54,056 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [930491357] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 13:42:54,056 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1492286966] [2023-12-02 13:42:54,057 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-12-02 13:42:54,057 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 13:42:54,057 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12de7233-5993-40ef-a6aa-4a9ed282749c/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 13:42:54,058 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12de7233-5993-40ef-a6aa-4a9ed282749c/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 13:42:54,061 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12de7233-5993-40ef-a6aa-4a9ed282749c/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2023-12-02 13:42:54,590 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2023-12-02 13:42:54,590 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-02 13:42:54,594 INFO L262 TraceCheckSpWp]: Trace formula consists of 608 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-02 13:42:54,596 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 13:42:54,620 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 13:42:54,621 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 13:42:54,653 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 13:42:54,653 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1492286966] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 13:42:54,654 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1753792775] [2023-12-02 13:42:54,655 INFO L159 IcfgInterpreter]: Started Sifa with 22 locations of interest [2023-12-02 13:42:54,656 INFO L166 IcfgInterpreter]: Building call graph [2023-12-02 13:42:54,656 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-12-02 13:42:54,656 INFO L176 IcfgInterpreter]: Starting interpretation [2023-12-02 13:42:54,656 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-12-02 13:43:11,610 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 119 for LOIs [2023-12-02 13:43:11,638 INFO L180 IcfgInterpreter]: Interpretation finished [2023-12-02 13:43:14,815 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '29547#(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 13:43:14,816 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2023-12-02 13:43:14,816 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-02 13:43:14,816 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 8 [2023-12-02 13:43:14,816 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [924769320] [2023-12-02 13:43:14,816 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-02 13:43:14,817 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-02 13:43:14,817 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 13:43:14,817 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-02 13:43:14,818 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=432, Unknown=0, NotChecked=0, Total=506 [2023-12-02 13:43:14,818 INFO L87 Difference]: Start difference. First operand 572 states and 768 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 13:43:15,773 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 13:43:15,773 INFO L93 Difference]: Finished difference Result 1993 states and 2760 transitions. [2023-12-02 13:43:15,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-02 13:43:15,774 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 13:43:15,774 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 13:43:15,784 INFO L225 Difference]: With dead ends: 1993 [2023-12-02 13:43:15,784 INFO L226 Difference]: Without dead ends: 1992 [2023-12-02 13:43:15,786 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 188 GetRequests, 157 SyntacticMatches, 10 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 261 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=74, Invalid=432, Unknown=0, NotChecked=0, Total=506 [2023-12-02 13:43:15,786 INFO L413 NwaCegarLoop]: 583 mSDtfsCounter, 2374 mSDsluCounter, 2284 mSDsCounter, 0 mSdLazyCounter, 592 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2422 SdHoareTripleChecker+Valid, 2867 SdHoareTripleChecker+Invalid, 620 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 592 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-02 13:43:15,787 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2422 Valid, 2867 Invalid, 620 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 592 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-02 13:43:15,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1992 states. [2023-12-02 13:43:15,825 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1992 to 588. [2023-12-02 13:43:15,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 588 states, 469 states have (on average 1.466950959488273) internal successors, (688), 526 states have internal predecessors, (688), 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 13:43:15,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 588 states to 588 states and 788 transitions. [2023-12-02 13:43:15,828 INFO L78 Accepts]: Start accepts. Automaton has 588 states and 788 transitions. Word has length 62 [2023-12-02 13:43:15,828 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 13:43:15,828 INFO L495 AbstractCegarLoop]: Abstraction has 588 states and 788 transitions. [2023-12-02 13:43:15,828 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 13:43:15,828 INFO L276 IsEmpty]: Start isEmpty. Operand 588 states and 788 transitions. [2023-12-02 13:43:15,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2023-12-02 13:43:15,829 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 13:43:15,829 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 13:43:15,837 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12de7233-5993-40ef-a6aa-4a9ed282749c/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2023-12-02 13:43:16,029 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12de7233-5993-40ef-a6aa-4a9ed282749c/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 13:43:16,030 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW === [vasprintfErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, vasprintfErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, remove_fileErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 59 more)] === [2023-12-02 13:43:16,030 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 13:43:16,030 INFO L85 PathProgramCache]: Analyzing trace with hash -871768079, now seen corresponding path program 1 times [2023-12-02 13:43:16,031 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 13:43:16,031 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [823402172] [2023-12-02 13:43:16,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:43:16,031 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 13:43:16,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:43:16,201 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 13:43:16,201 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 13:43:16,202 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [823402172] [2023-12-02 13:43:16,202 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [823402172] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 13:43:16,202 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 13:43:16,202 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-02 13:43:16,202 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1080093197] [2023-12-02 13:43:16,202 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 13:43:16,203 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 13:43:16,203 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 13:43:16,203 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 13:43:16,203 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 13:43:16,204 INFO L87 Difference]: Start difference. First operand 588 states and 788 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 13:43:16,619 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 13:43:16,619 INFO L93 Difference]: Finished difference Result 1059 states and 1448 transitions. [2023-12-02 13:43:16,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 13:43:16,620 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 13:43:16,620 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 13:43:16,624 INFO L225 Difference]: With dead ends: 1059 [2023-12-02 13:43:16,625 INFO L226 Difference]: Without dead ends: 639 [2023-12-02 13:43:16,626 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 13:43:16,627 INFO L413 NwaCegarLoop]: 632 mSDtfsCounter, 76 mSDsluCounter, 543 mSDsCounter, 0 mSdLazyCounter, 228 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 79 SdHoareTripleChecker+Valid, 1175 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 13:43:16,628 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [79 Valid, 1175 Invalid, 238 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 228 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-02 13:43:16,629 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 639 states. [2023-12-02 13:43:16,655 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 639 to 590. [2023-12-02 13:43:16,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 590 states, 473 states have (on average 1.4608879492600422) internal successors, (691), 528 states have internal predecessors, (691), 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 13:43:16,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 590 states to 590 states and 791 transitions. [2023-12-02 13:43:16,658 INFO L78 Accepts]: Start accepts. Automaton has 590 states and 791 transitions. Word has length 70 [2023-12-02 13:43:16,658 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 13:43:16,658 INFO L495 AbstractCegarLoop]: Abstraction has 590 states and 791 transitions. [2023-12-02 13:43:16,658 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 13:43:16,658 INFO L276 IsEmpty]: Start isEmpty. Operand 590 states and 791 transitions. [2023-12-02 13:43:16,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2023-12-02 13:43:16,659 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 13:43:16,659 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 13:43:16,659 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2023-12-02 13:43:16,659 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW === [vasprintfErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, vasprintfErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, remove_fileErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 59 more)] === [2023-12-02 13:43:16,660 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 13:43:16,660 INFO L85 PathProgramCache]: Analyzing trace with hash -871135588, now seen corresponding path program 1 times [2023-12-02 13:43:16,660 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 13:43:16,660 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [697464120] [2023-12-02 13:43:16,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:43:16,660 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 13:43:16,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:43:16,854 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 13:43:16,854 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 13:43:16,854 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [697464120] [2023-12-02 13:43:16,855 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [697464120] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 13:43:16,855 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [57584651] [2023-12-02 13:43:16,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:43:16,855 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 13:43:16,855 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12de7233-5993-40ef-a6aa-4a9ed282749c/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 13:43:16,856 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12de7233-5993-40ef-a6aa-4a9ed282749c/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 13:43:16,858 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12de7233-5993-40ef-a6aa-4a9ed282749c/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2023-12-02 13:43:17,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:43:17,325 INFO L262 TraceCheckSpWp]: Trace formula consists of 833 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-02 13:43:17,328 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 13:43:17,347 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 13:43:17,347 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 13:43:17,385 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 13:43:17,385 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [57584651] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 13:43:17,385 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1974963398] [2023-12-02 13:43:17,388 INFO L159 IcfgInterpreter]: Started Sifa with 38 locations of interest [2023-12-02 13:43:17,389 INFO L166 IcfgInterpreter]: Building call graph [2023-12-02 13:43:17,389 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-12-02 13:43:17,389 INFO L176 IcfgInterpreter]: Starting interpretation [2023-12-02 13:43:17,390 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-12-02 13:43:30,419 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 119 for LOIs [2023-12-02 13:43:30,446 INFO L197 IcfgInterpreter]: Interpreting procedure #Ultimate.C_memset with input of size 148 for LOIs [2023-12-02 13:43:30,628 INFO L180 IcfgInterpreter]: Interpretation finished [2023-12-02 13:43:37,827 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [1974963398] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 13:43:37,827 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2023-12-02 13:43:37,827 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [5, 5, 5] total 26 [2023-12-02 13:43:37,827 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [382322118] [2023-12-02 13:43:37,828 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 13:43:37,828 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2023-12-02 13:43:37,828 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 13:43:37,829 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2023-12-02 13:43:37,829 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=87, Invalid=563, Unknown=0, NotChecked=0, Total=650 [2023-12-02 13:43:37,830 INFO L87 Difference]: Start difference. First operand 590 states and 791 transitions. Second operand has 19 states, 16 states have (on average 2.25) 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 13:43:40,744 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 13:43:49,949 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.93s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 13:43:52,044 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.32s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 13:43:55,192 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 13:43:55,192 INFO L93 Difference]: Finished difference Result 1104 states and 1498 transitions. [2023-12-02 13:43:55,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-12-02 13:43:55,193 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 16 states have (on average 2.25) 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 13:43:55,193 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 13:43:55,196 INFO L225 Difference]: With dead ends: 1104 [2023-12-02 13:43:55,196 INFO L226 Difference]: Without dead ends: 595 [2023-12-02 13:43:55,198 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 214 GetRequests, 179 SyntacticMatches, 10 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 338 ImplicationChecksByTransitivity, 7.5s TimeCoverageRelationStatistics Valid=93, Invalid=609, Unknown=0, NotChecked=0, Total=702 [2023-12-02 13:43:55,199 INFO L413 NwaCegarLoop]: 567 mSDtfsCounter, 4 mSDsluCounter, 4580 mSDsCounter, 0 mSdLazyCounter, 2235 mSolverCounterSat, 3 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 5147 SdHoareTripleChecker+Invalid, 2240 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 2235 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.0s IncrementalHoareTripleChecker+Time [2023-12-02 13:43:55,199 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 5147 Invalid, 2240 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3 Valid, 2235 Invalid, 2 Unknown, 0 Unchecked, 17.0s Time] [2023-12-02 13:43:55,201 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 595 states. [2023-12-02 13:43:55,249 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 595 to 594. [2023-12-02 13:43:55,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 594 states, 476 states have (on average 1.4579831932773109) internal successors, (694), 531 states have internal predecessors, (694), 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 13:43:55,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 594 states to 594 states and 796 transitions. [2023-12-02 13:43:55,253 INFO L78 Accepts]: Start accepts. Automaton has 594 states and 796 transitions. Word has length 70 [2023-12-02 13:43:55,253 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 13:43:55,253 INFO L495 AbstractCegarLoop]: Abstraction has 594 states and 796 transitions. [2023-12-02 13:43:55,254 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 16 states have (on average 2.25) 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 13:43:55,254 INFO L276 IsEmpty]: Start isEmpty. Operand 594 states and 796 transitions. [2023-12-02 13:43:55,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2023-12-02 13:43:55,255 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 13:43:55,255 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 13:43:55,264 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12de7233-5993-40ef-a6aa-4a9ed282749c/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2023-12-02 13:43:55,455 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12de7233-5993-40ef-a6aa-4a9ed282749c/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2023-12-02 13:43:55,456 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW === [vasprintfErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, vasprintfErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, remove_fileErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 59 more)] === [2023-12-02 13:43:55,456 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 13:43:55,456 INFO L85 PathProgramCache]: Analyzing trace with hash 636049012, now seen corresponding path program 1 times [2023-12-02 13:43:55,456 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 13:43:55,457 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [236011829] [2023-12-02 13:43:55,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:43:55,457 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 13:43:55,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:43:55,724 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 13:43:55,724 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 13:43:55,724 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [236011829] [2023-12-02 13:43:55,724 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [236011829] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 13:43:55,724 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1941762484] [2023-12-02 13:43:55,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:43:55,725 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 13:43:55,725 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12de7233-5993-40ef-a6aa-4a9ed282749c/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 13:43:55,726 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12de7233-5993-40ef-a6aa-4a9ed282749c/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 13:43:55,728 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12de7233-5993-40ef-a6aa-4a9ed282749c/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2023-12-02 13:43:56,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:43:56,166 INFO L262 TraceCheckSpWp]: Trace formula consists of 848 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-02 13:43:56,169 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 13:43:56,187 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 13:43:56,188 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 13:43:56,223 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 13:43:56,224 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1941762484] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 13:43:56,224 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [424970442] [2023-12-02 13:43:56,226 INFO L159 IcfgInterpreter]: Started Sifa with 38 locations of interest [2023-12-02 13:43:56,226 INFO L166 IcfgInterpreter]: Building call graph [2023-12-02 13:43:56,226 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-12-02 13:43:56,226 INFO L176 IcfgInterpreter]: Starting interpretation [2023-12-02 13:43:56,227 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-12-02 13:44:12,476 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 119 for LOIs [2023-12-02 13:44:12,505 INFO L197 IcfgInterpreter]: Interpreting procedure #Ultimate.C_memset with input of size 63 for LOIs [2023-12-02 13:44:12,584 INFO L180 IcfgInterpreter]: Interpretation finished [2023-12-02 13:44:26,498 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [424970442] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 13:44:26,498 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2023-12-02 13:44:26,498 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [5, 5, 5] total 38 [2023-12-02 13:44:26,499 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [424018893] [2023-12-02 13:44:26,499 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 13:44:26,499 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2023-12-02 13:44:26,499 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 13:44:26,500 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2023-12-02 13:44:26,501 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=113, Invalid=1291, Unknown=2, NotChecked=0, Total=1406 [2023-12-02 13:44:26,501 INFO L87 Difference]: Start difference. First operand 594 states and 796 transitions. Second operand has 31 states, 26 states have (on average 1.4230769230769231) internal successors, (37), 28 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 13:44:29,253 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 13:44:49,975 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.91s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 13:44:53,735 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.17s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 13:45:03,923 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 13:45:03,924 INFO L93 Difference]: Finished difference Result 618 states and 828 transitions. [2023-12-02 13:45:03,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2023-12-02 13:45:03,924 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 26 states have (on average 1.4230769230769231) internal successors, (37), 28 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 13:45:03,925 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 13:45:03,929 INFO L225 Difference]: With dead ends: 618 [2023-12-02 13:45:03,929 INFO L226 Difference]: Without dead ends: 616 [2023-12-02 13:45:03,930 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 222 GetRequests, 169 SyntacticMatches, 11 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 682 ImplicationChecksByTransitivity, 16.8s TimeCoverageRelationStatistics Valid=143, Invalid=1747, Unknown=2, NotChecked=0, Total=1892 [2023-12-02 13:45:03,931 INFO L413 NwaCegarLoop]: 546 mSDtfsCounter, 27 mSDsluCounter, 10139 mSDsCounter, 0 mSdLazyCounter, 5437 mSolverCounterSat, 4 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 32.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 10685 SdHoareTripleChecker+Invalid, 5449 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 5437 IncrementalHoareTripleChecker+Invalid, 8 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 34.3s IncrementalHoareTripleChecker+Time [2023-12-02 13:45:03,931 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 10685 Invalid, 5449 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4 Valid, 5437 Invalid, 8 Unknown, 0 Unchecked, 34.3s Time] [2023-12-02 13:45:03,932 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 616 states. [2023-12-02 13:45:03,969 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 616 to 610. [2023-12-02 13:45:03,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 610 states, 491 states have (on average 1.460285132382892) internal successors, (717), 546 states have internal predecessors, (717), 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 13:45:03,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 610 states to 610 states and 819 transitions. [2023-12-02 13:45:03,972 INFO L78 Accepts]: Start accepts. Automaton has 610 states and 819 transitions. Word has length 71 [2023-12-02 13:45:03,972 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 13:45:03,972 INFO L495 AbstractCegarLoop]: Abstraction has 610 states and 819 transitions. [2023-12-02 13:45:03,973 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 26 states have (on average 1.4230769230769231) internal successors, (37), 28 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 13:45:03,973 INFO L276 IsEmpty]: Start isEmpty. Operand 610 states and 819 transitions. [2023-12-02 13:45:03,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2023-12-02 13:45:03,974 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 13:45:03,974 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 13:45:03,981 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12de7233-5993-40ef-a6aa-4a9ed282749c/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2023-12-02 13:45:04,174 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12de7233-5993-40ef-a6aa-4a9ed282749c/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2023-12-02 13:45:04,175 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW === [vasprintfErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, vasprintfErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, remove_fileErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 59 more)] === [2023-12-02 13:45:04,175 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 13:45:04,175 INFO L85 PathProgramCache]: Analyzing trace with hash -1776923238, now seen corresponding path program 1 times [2023-12-02 13:45:04,175 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 13:45:04,175 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1656765522] [2023-12-02 13:45:04,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:45:04,176 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 13:45:04,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:45:04,315 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 13:45:04,316 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 13:45:04,316 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1656765522] [2023-12-02 13:45:04,316 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1656765522] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 13:45:04,316 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 13:45:04,316 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-02 13:45:04,316 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [679515112] [2023-12-02 13:45:04,317 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 13:45:04,317 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 13:45:04,317 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 13:45:04,318 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 13:45:04,318 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 13:45:04,318 INFO L87 Difference]: Start difference. First operand 610 states and 819 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 13:45:04,720 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 13:45:04,720 INFO L93 Difference]: Finished difference Result 1088 states and 1488 transitions. [2023-12-02 13:45:04,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 13:45:04,721 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 13:45:04,721 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 13:45:04,724 INFO L225 Difference]: With dead ends: 1088 [2023-12-02 13:45:04,724 INFO L226 Difference]: Without dead ends: 664 [2023-12-02 13:45:04,726 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 13:45:04,726 INFO L413 NwaCegarLoop]: 604 mSDtfsCounter, 154 mSDsluCounter, 502 mSDsCounter, 0 mSdLazyCounter, 208 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 160 SdHoareTripleChecker+Valid, 1106 SdHoareTripleChecker+Invalid, 223 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 208 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-02 13:45:04,726 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [160 Valid, 1106 Invalid, 223 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 208 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-02 13:45:04,728 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 664 states. [2023-12-02 13:45:04,783 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 664 to 605. [2023-12-02 13:45:04,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 605 states, 490 states have (on average 1.453061224489796) internal successors, (712), 541 states have internal predecessors, (712), 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 13:45:04,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 605 states to 605 states and 814 transitions. [2023-12-02 13:45:04,787 INFO L78 Accepts]: Start accepts. Automaton has 605 states and 814 transitions. Word has length 72 [2023-12-02 13:45:04,787 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 13:45:04,787 INFO L495 AbstractCegarLoop]: Abstraction has 605 states and 814 transitions. [2023-12-02 13:45:04,787 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 13:45:04,787 INFO L276 IsEmpty]: Start isEmpty. Operand 605 states and 814 transitions. [2023-12-02 13:45:04,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2023-12-02 13:45:04,788 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 13:45:04,788 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 13:45:04,789 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2023-12-02 13:45:04,789 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [vasprintfErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, vasprintfErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, remove_fileErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 59 more)] === [2023-12-02 13:45:04,789 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 13:45:04,789 INFO L85 PathProgramCache]: Analyzing trace with hash -1407536570, now seen corresponding path program 1 times [2023-12-02 13:45:04,789 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 13:45:04,789 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [897634784] [2023-12-02 13:45:04,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:45:04,790 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 13:45:04,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:45:05,059 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 13:45:05,060 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 13:45:05,060 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [897634784] [2023-12-02 13:45:05,060 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [897634784] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 13:45:05,060 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2030774731] [2023-12-02 13:45:05,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:45:05,060 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 13:45:05,061 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12de7233-5993-40ef-a6aa-4a9ed282749c/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 13:45:05,062 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12de7233-5993-40ef-a6aa-4a9ed282749c/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 13:45:05,064 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12de7233-5993-40ef-a6aa-4a9ed282749c/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2023-12-02 13:45:05,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:45:05,546 INFO L262 TraceCheckSpWp]: Trace formula consists of 882 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-02 13:45:05,549 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 13:45:05,585 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 13:45:05,585 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 13:45:05,635 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 13:45:05,635 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2030774731] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 13:45:05,635 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1531272536] [2023-12-02 13:45:05,638 INFO L159 IcfgInterpreter]: Started Sifa with 36 locations of interest [2023-12-02 13:45:05,638 INFO L166 IcfgInterpreter]: Building call graph [2023-12-02 13:45:05,638 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-12-02 13:45:05,638 INFO L176 IcfgInterpreter]: Starting interpretation [2023-12-02 13:45:05,638 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-12-02 13:45:24,957 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 119 for LOIs [2023-12-02 13:45:24,987 INFO L197 IcfgInterpreter]: Interpreting procedure #Ultimate.C_memset with input of size 63 for LOIs [2023-12-02 13:45:25,099 INFO L180 IcfgInterpreter]: Interpretation finished [2023-12-02 13:45:32,765 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [1531272536] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 13:45:32,765 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2023-12-02 13:45:32,765 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [27] imperfect sequences [4, 5, 5] total 37 [2023-12-02 13:45:32,766 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1182759677] [2023-12-02 13:45:32,766 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 13:45:32,766 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2023-12-02 13:45:32,766 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 13:45:32,767 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2023-12-02 13:45:32,767 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=116, Invalid=1216, Unknown=0, NotChecked=0, Total=1332 [2023-12-02 13:45:32,767 INFO L87 Difference]: Start difference. First operand 605 states and 814 transitions. Second operand has 28 states, 23 states have (on average 1.565217391304348) 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 13:45:35,799 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 13:45:46,539 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 13:45:47,891 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.35s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 13:45:50,292 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.69s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 13:45:54,119 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 13:45:54,119 INFO L93 Difference]: Finished difference Result 673 states and 904 transitions. [2023-12-02 13:45:54,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2023-12-02 13:45:54,120 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 23 states have (on average 1.565217391304348) 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 13:45:54,120 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 13:45:54,123 INFO L225 Difference]: With dead ends: 673 [2023-12-02 13:45:54,123 INFO L226 Difference]: Without dead ends: 670 [2023-12-02 13:45:54,124 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 225 GetRequests, 175 SyntacticMatches, 11 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 551 ImplicationChecksByTransitivity, 8.2s TimeCoverageRelationStatistics Valid=136, Invalid=1504, Unknown=0, NotChecked=0, Total=1640 [2023-12-02 13:45:54,124 INFO L413 NwaCegarLoop]: 566 mSDtfsCounter, 80 mSDsluCounter, 5778 mSDsCounter, 0 mSdLazyCounter, 2848 mSolverCounterSat, 11 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 19.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 81 SdHoareTripleChecker+Valid, 6344 SdHoareTripleChecker+Invalid, 2864 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 2848 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 20.7s IncrementalHoareTripleChecker+Time [2023-12-02 13:45:54,125 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [81 Valid, 6344 Invalid, 2864 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [11 Valid, 2848 Invalid, 5 Unknown, 0 Unchecked, 20.7s Time] [2023-12-02 13:45:54,126 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 670 states. [2023-12-02 13:45:54,185 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 670 to 620. [2023-12-02 13:45:54,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 620 states, 505 states have (on average 1.4495049504950495) internal successors, (732), 556 states have internal predecessors, (732), 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 13:45:54,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 620 states to 620 states and 834 transitions. [2023-12-02 13:45:54,189 INFO L78 Accepts]: Start accepts. Automaton has 620 states and 834 transitions. Word has length 73 [2023-12-02 13:45:54,189 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 13:45:54,189 INFO L495 AbstractCegarLoop]: Abstraction has 620 states and 834 transitions. [2023-12-02 13:45:54,189 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 23 states have (on average 1.565217391304348) 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 13:45:54,190 INFO L276 IsEmpty]: Start isEmpty. Operand 620 states and 834 transitions. [2023-12-02 13:45:54,191 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2023-12-02 13:45:54,191 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 13:45:54,191 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 13:45:54,200 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12de7233-5993-40ef-a6aa-4a9ed282749c/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Ended with exit code 0 [2023-12-02 13:45:54,391 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12de7233-5993-40ef-a6aa-4a9ed282749c/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2023-12-02 13:45:54,392 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW === [vasprintfErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, vasprintfErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, remove_fileErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 59 more)] === [2023-12-02 13:45:54,392 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 13:45:54,392 INFO L85 PathProgramCache]: Analyzing trace with hash 873413219, now seen corresponding path program 1 times [2023-12-02 13:45:54,392 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 13:45:54,393 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1739585112] [2023-12-02 13:45:54,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:45:54,393 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 13:45:54,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:45:54,646 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 13:45:54,646 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 13:45:54,647 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1739585112] [2023-12-02 13:45:54,647 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1739585112] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 13:45:54,647 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [105079009] [2023-12-02 13:45:54,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:45:54,647 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 13:45:54,647 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12de7233-5993-40ef-a6aa-4a9ed282749c/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 13:45:54,649 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12de7233-5993-40ef-a6aa-4a9ed282749c/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 13:45:54,657 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12de7233-5993-40ef-a6aa-4a9ed282749c/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2023-12-02 13:45:55,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:45:55,142 INFO L262 TraceCheckSpWp]: Trace formula consists of 842 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-02 13:45:55,145 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 13:45:55,162 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 13:45:55,162 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 13:45:55,198 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 13:45:55,199 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [105079009] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 13:45:55,199 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [442868004] [2023-12-02 13:45:55,202 INFO L159 IcfgInterpreter]: Started Sifa with 40 locations of interest [2023-12-02 13:45:55,202 INFO L166 IcfgInterpreter]: Building call graph [2023-12-02 13:45:55,202 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-12-02 13:45:55,203 INFO L176 IcfgInterpreter]: Starting interpretation [2023-12-02 13:45:55,203 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-12-02 13:46:12,420 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 119 for LOIs [2023-12-02 13:46:12,448 INFO L197 IcfgInterpreter]: Interpreting procedure #Ultimate.C_memset with input of size 139 for LOIs [2023-12-02 13:46:12,565 INFO L180 IcfgInterpreter]: Interpretation finished [2023-12-02 13:46:19,027 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [442868004] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 13:46:19,027 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2023-12-02 13:46:19,027 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [5, 5, 5] total 26 [2023-12-02 13:46:19,028 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1981774842] [2023-12-02 13:46:19,028 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 13:46:19,028 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2023-12-02 13:46:19,028 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 13:46:19,029 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2023-12-02 13:46:19,029 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=87, Invalid=562, Unknown=1, NotChecked=0, Total=650 [2023-12-02 13:46:19,029 INFO L87 Difference]: Start difference. First operand 620 states and 834 transitions. Second operand has 19 states, 16 states have (on average 2.4375) 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 13:46:22,077 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 13:46:35,452 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 13:46:35,452 INFO L93 Difference]: Finished difference Result 1126 states and 1532 transitions. [2023-12-02 13:46:35,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-12-02 13:46:35,453 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 16 states have (on average 2.4375) 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 13:46:35,453 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 13:46:35,457 INFO L225 Difference]: With dead ends: 1126 [2023-12-02 13:46:35,457 INFO L226 Difference]: Without dead ends: 622 [2023-12-02 13:46:35,458 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 228 GetRequests, 191 SyntacticMatches, 10 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 354 ImplicationChecksByTransitivity, 6.9s TimeCoverageRelationStatistics Valid=103, Invalid=708, Unknown=1, NotChecked=0, Total=812 [2023-12-02 13:46:35,459 INFO L413 NwaCegarLoop]: 562 mSDtfsCounter, 12 mSDsluCounter, 4678 mSDsCounter, 0 mSdLazyCounter, 2078 mSolverCounterSat, 5 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 5240 SdHoareTripleChecker+Invalid, 2085 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 2078 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.8s IncrementalHoareTripleChecker+Time [2023-12-02 13:46:35,459 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 5240 Invalid, 2085 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 2078 Invalid, 2 Unknown, 0 Unchecked, 15.8s Time] [2023-12-02 13:46:35,460 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 622 states. [2023-12-02 13:46:35,509 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 622 to 622. [2023-12-02 13:46:35,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 622 states, 507 states have (on average 1.4477317554240632) internal successors, (734), 557 states have internal predecessors, (734), 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 13:46:35,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 622 states to 622 states and 836 transitions. [2023-12-02 13:46:35,511 INFO L78 Accepts]: Start accepts. Automaton has 622 states and 836 transitions. Word has length 74 [2023-12-02 13:46:35,512 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 13:46:35,512 INFO L495 AbstractCegarLoop]: Abstraction has 622 states and 836 transitions. [2023-12-02 13:46:35,512 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 16 states have (on average 2.4375) 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 13:46:35,512 INFO L276 IsEmpty]: Start isEmpty. Operand 622 states and 836 transitions. [2023-12-02 13:46:35,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2023-12-02 13:46:35,513 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 13:46:35,513 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 13:46:35,520 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12de7233-5993-40ef-a6aa-4a9ed282749c/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Ended with exit code 0 [2023-12-02 13:46:35,713 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12de7233-5993-40ef-a6aa-4a9ed282749c/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2023-12-02 13:46:35,714 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW === [vasprintfErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, vasprintfErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, remove_fileErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 59 more)] === [2023-12-02 13:46:35,714 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 13:46:35,714 INFO L85 PathProgramCache]: Analyzing trace with hash -562618553, now seen corresponding path program 1 times [2023-12-02 13:46:35,714 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 13:46:35,714 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1089230098] [2023-12-02 13:46:35,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:46:35,715 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 13:46:35,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:46:35,958 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 13:46:35,959 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 13:46:35,959 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1089230098] [2023-12-02 13:46:35,959 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1089230098] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 13:46:35,959 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1284699171] [2023-12-02 13:46:35,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:46:35,959 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 13:46:35,960 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12de7233-5993-40ef-a6aa-4a9ed282749c/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 13:46:35,961 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12de7233-5993-40ef-a6aa-4a9ed282749c/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 13:46:35,961 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12de7233-5993-40ef-a6aa-4a9ed282749c/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2023-12-02 13:46:36,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:46:36,457 INFO L262 TraceCheckSpWp]: Trace formula consists of 858 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-02 13:46:36,460 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 13:46:36,482 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 13:46:36,482 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 13:46:36,534 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 13:46:36,534 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1284699171] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 13:46:36,534 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [356970022] [2023-12-02 13:46:36,537 INFO L159 IcfgInterpreter]: Started Sifa with 39 locations of interest [2023-12-02 13:46:36,537 INFO L166 IcfgInterpreter]: Building call graph [2023-12-02 13:46:36,537 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-12-02 13:46:36,537 INFO L176 IcfgInterpreter]: Starting interpretation [2023-12-02 13:46:36,538 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-12-02 13:46:55,566 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 119 for LOIs [2023-12-02 13:46:55,595 INFO L197 IcfgInterpreter]: Interpreting procedure #Ultimate.C_memset with input of size 63 for LOIs [2023-12-02 13:46:55,681 INFO L180 IcfgInterpreter]: Interpretation finished [2023-12-02 13:47:05,524 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [356970022] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 13:47:05,524 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2023-12-02 13:47:05,525 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [5, 5, 5] total 36 [2023-12-02 13:47:05,525 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [364620066] [2023-12-02 13:47:05,525 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 13:47:05,525 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2023-12-02 13:47:05,525 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 13:47:05,526 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2023-12-02 13:47:05,526 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=112, Invalid=1140, Unknown=8, NotChecked=0, Total=1260 [2023-12-02 13:47:05,527 INFO L87 Difference]: Start difference. First operand 622 states and 836 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 13:47:08,578 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 13:47:10,710 WARN L539 Checker$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 13:47:23,191 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.24s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 13:47:28,015 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.29s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 13:47:33,034 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 13:47:33,034 INFO L93 Difference]: Finished difference Result 626 states and 841 transitions. [2023-12-02 13:47:33,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2023-12-02 13:47:33,035 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 13:47:33,035 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 13:47:33,038 INFO L225 Difference]: With dead ends: 626 [2023-12-02 13:47:33,038 INFO L226 Difference]: Without dead ends: 624 [2023-12-02 13:47:33,039 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 232 GetRequests, 182 SyntacticMatches, 12 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 624 ImplicationChecksByTransitivity, 10.4s TimeCoverageRelationStatistics Valid=133, Invalid=1419, Unknown=8, NotChecked=0, Total=1560 [2023-12-02 13:47:33,040 INFO L413 NwaCegarLoop]: 543 mSDtfsCounter, 210 mSDsluCounter, 6956 mSDsCounter, 0 mSdLazyCounter, 3576 mSolverCounterSat, 4 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 25.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 216 SdHoareTripleChecker+Valid, 7499 SdHoareTripleChecker+Invalid, 3586 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 3576 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 26.7s IncrementalHoareTripleChecker+Time [2023-12-02 13:47:33,040 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [216 Valid, 7499 Invalid, 3586 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4 Valid, 3576 Invalid, 6 Unknown, 0 Unchecked, 26.7s Time] [2023-12-02 13:47:33,042 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 624 states. [2023-12-02 13:47:33,101 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 624 to 609. [2023-12-02 13:47:33,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 609 states, 496 states have (on average 1.4415322580645162) internal successors, (715), 544 states have internal predecessors, (715), 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 13:47:33,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 609 states to 609 states and 817 transitions. [2023-12-02 13:47:33,105 INFO L78 Accepts]: Start accepts. Automaton has 609 states and 817 transitions. Word has length 75 [2023-12-02 13:47:33,105 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 13:47:33,105 INFO L495 AbstractCegarLoop]: Abstraction has 609 states and 817 transitions. [2023-12-02 13:47:33,105 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 13:47:33,105 INFO L276 IsEmpty]: Start isEmpty. Operand 609 states and 817 transitions. [2023-12-02 13:47:33,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2023-12-02 13:47:33,107 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 13:47:33,107 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 13:47:33,114 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12de7233-5993-40ef-a6aa-4a9ed282749c/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Ended with exit code 0 [2023-12-02 13:47:33,307 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12de7233-5993-40ef-a6aa-4a9ed282749c/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2023-12-02 13:47:33,308 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [vasprintfErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, vasprintfErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, remove_fileErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 59 more)] === [2023-12-02 13:47:33,308 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 13:47:33,308 INFO L85 PathProgramCache]: Analyzing trace with hash 273448020, now seen corresponding path program 1 times [2023-12-02 13:47:33,308 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 13:47:33,308 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1505101382] [2023-12-02 13:47:33,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:47:33,309 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 13:47:33,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:47:33,548 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 13:47:33,548 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 13:47:33,548 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1505101382] [2023-12-02 13:47:33,548 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1505101382] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 13:47:33,548 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1557050664] [2023-12-02 13:47:33,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:47:33,548 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 13:47:33,549 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12de7233-5993-40ef-a6aa-4a9ed282749c/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 13:47:33,549 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12de7233-5993-40ef-a6aa-4a9ed282749c/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 13:47:33,552 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12de7233-5993-40ef-a6aa-4a9ed282749c/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2023-12-02 13:47:34,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:47:34,026 INFO L262 TraceCheckSpWp]: Trace formula consists of 886 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-02 13:47:34,028 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 13:47:34,046 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 13:47:34,046 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 13:47:34,082 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 13:47:34,082 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1557050664] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 13:47:34,082 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1437812866] [2023-12-02 13:47:34,085 INFO L159 IcfgInterpreter]: Started Sifa with 36 locations of interest [2023-12-02 13:47:34,085 INFO L166 IcfgInterpreter]: Building call graph [2023-12-02 13:47:34,085 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-12-02 13:47:34,086 INFO L176 IcfgInterpreter]: Starting interpretation [2023-12-02 13:47:34,086 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-12-02 13:48:00,841 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 119 for LOIs [2023-12-02 13:48:00,866 INFO L197 IcfgInterpreter]: Interpreting procedure #Ultimate.C_memset with input of size 225 for LOIs [2023-12-02 13:48:01,784 INFO L180 IcfgInterpreter]: Interpretation finished [2023-12-02 13:48:15,504 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '48233#(and (= 21 |ULTIMATE.start_getopt32_~applet_opts#1.base|) (exists ((|v_#memory_$Pointer$.offset_695| (Array Int (Array Int Int)))) (= |#memory_$Pointer$.offset| (store |v_#memory_$Pointer$.offset_695| |ULTIMATE.start_getopt32_~on_off~0#1.base| (store (select |v_#memory_$Pointer$.offset_695| |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) (exists ((|v_#memory_$Pointer$.base_699| (Array Int (Array Int Int)))) (= (store |v_#memory_$Pointer$.base_699| |ULTIMATE.start_getopt32_~on_off~0#1.base| (store (select |v_#memory_$Pointer$.base_699| |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_~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|) (exists ((|v_#memory_int_897| (Array Int (Array Int Int)))) (= |#memory_int| (store |v_#memory_int_897| |ULTIMATE.start_getopt32_~on_off~0#1.base| (store (select |v_#memory_int_897| |ULTIMATE.start_getopt32_~on_off~0#1.base|) |ULTIMATE.start_getopt32_~on_off~0#1.offset| (select (select |v_#memory_int_897| 21) |ULTIMATE.start_getopt32_~s~0#1.offset|))))) (= |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 13:48:15,504 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2023-12-02 13:48:15,504 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-02 13:48:15,504 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 9 [2023-12-02 13:48:15,504 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1179173689] [2023-12-02 13:48:15,505 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-02 13:48:15,505 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-02 13:48:15,505 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 13:48:15,505 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-02 13:48:15,506 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=120, Invalid=1206, Unknown=6, NotChecked=0, Total=1332 [2023-12-02 13:48:15,506 INFO L87 Difference]: Start difference. First operand 609 states and 817 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 13:48:16,062 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 13:48:16,062 INFO L93 Difference]: Finished difference Result 1190 states and 1609 transitions. [2023-12-02 13:48:16,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-02 13:48:16,063 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 13:48:16,063 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 13:48:16,066 INFO L225 Difference]: With dead ends: 1190 [2023-12-02 13:48:16,066 INFO L226 Difference]: Without dead ends: 621 [2023-12-02 13:48:16,067 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 228 GetRequests, 181 SyntacticMatches, 12 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 554 ImplicationChecksByTransitivity, 13.7s TimeCoverageRelationStatistics Valid=120, Invalid=1206, Unknown=6, NotChecked=0, Total=1332 [2023-12-02 13:48:16,067 INFO L413 NwaCegarLoop]: 579 mSDtfsCounter, 4 mSDsluCounter, 2312 mSDsCounter, 0 mSdLazyCounter, 442 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 2891 SdHoareTripleChecker+Invalid, 444 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 442 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-02 13:48:16,068 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 2891 Invalid, 444 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 442 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-02 13:48:16,069 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 621 states. [2023-12-02 13:48:16,113 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 621 to 621. [2023-12-02 13:48:16,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 621 states, 508 states have (on average 1.4311023622047243) internal successors, (727), 556 states have internal predecessors, (727), 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 13:48:16,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 621 states to 621 states and 829 transitions. [2023-12-02 13:48:16,115 INFO L78 Accepts]: Start accepts. Automaton has 621 states and 829 transitions. Word has length 75 [2023-12-02 13:48:16,116 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 13:48:16,116 INFO L495 AbstractCegarLoop]: Abstraction has 621 states and 829 transitions. [2023-12-02 13:48:16,116 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 13:48:16,116 INFO L276 IsEmpty]: Start isEmpty. Operand 621 states and 829 transitions. [2023-12-02 13:48:16,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2023-12-02 13:48:16,117 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 13:48:16,117 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 13:48:16,124 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12de7233-5993-40ef-a6aa-4a9ed282749c/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Ended with exit code 0 [2023-12-02 13:48:16,317 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12de7233-5993-40ef-a6aa-4a9ed282749c/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2023-12-02 13:48:16,317 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [vasprintfErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, vasprintfErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, remove_fileErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 59 more)] === [2023-12-02 13:48:16,318 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 13:48:16,318 INFO L85 PathProgramCache]: Analyzing trace with hash -910667564, now seen corresponding path program 2 times [2023-12-02 13:48:16,318 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 13:48:16,318 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [224972455] [2023-12-02 13:48:16,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:48:16,318 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 13:48:16,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:48:16,679 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 13:48:16,679 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 13:48:16,679 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [224972455] [2023-12-02 13:48:16,679 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [224972455] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 13:48:16,680 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [175494583] [2023-12-02 13:48:16,680 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-12-02 13:48:16,680 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 13:48:16,680 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12de7233-5993-40ef-a6aa-4a9ed282749c/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 13:48:16,681 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12de7233-5993-40ef-a6aa-4a9ed282749c/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 13:48:16,682 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12de7233-5993-40ef-a6aa-4a9ed282749c/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2023-12-02 13:48:17,336 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2023-12-02 13:48:17,336 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-02 13:48:17,340 INFO L262 TraceCheckSpWp]: Trace formula consists of 677 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-02 13:48:17,342 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 13:48:17,372 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 13:48:17,373 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 13:48:17,445 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 13:48:17,446 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [175494583] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 13:48:17,446 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [705747529] [2023-12-02 13:48:17,448 INFO L159 IcfgInterpreter]: Started Sifa with 36 locations of interest [2023-12-02 13:48:17,448 INFO L166 IcfgInterpreter]: Building call graph [2023-12-02 13:48:17,448 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-12-02 13:48:17,448 INFO L176 IcfgInterpreter]: Starting interpretation [2023-12-02 13:48:17,448 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-12-02 13:48:44,660 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 119 for LOIs [2023-12-02 13:48:44,689 INFO L197 IcfgInterpreter]: Interpreting procedure #Ultimate.C_memset with input of size 225 for LOIs [2023-12-02 13:48:45,491 INFO L180 IcfgInterpreter]: Interpretation finished [2023-12-02 13:49:00,919 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '51005#(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_737| (Array Int (Array Int Int)))) (= (store |v_#memory_$Pointer$.base_737| |ULTIMATE.start_getopt32_~on_off~0#1.base| (store (select |v_#memory_$Pointer$.base_737| |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) (exists ((|v_#memory_$Pointer$.offset_733| (Array Int (Array Int Int)))) (= |#memory_$Pointer$.offset| (store |v_#memory_$Pointer$.offset_733| |ULTIMATE.start_getopt32_~on_off~0#1.base| (store (select |v_#memory_$Pointer$.offset_733| |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___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_int_939| (Array Int (Array Int Int)))) (= |#memory_int| (store |v_#memory_int_939| |ULTIMATE.start_getopt32_~on_off~0#1.base| (store (select |v_#memory_int_939| |ULTIMATE.start_getopt32_~on_off~0#1.base|) |ULTIMATE.start_getopt32_~on_off~0#1.offset| (select (select |v_#memory_int_939| 21) |ULTIMATE.start_getopt32_~s~0#1.offset|))))))' at error location [2023-12-02 13:49:00,920 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2023-12-02 13:49:00,920 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-02 13:49:00,920 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 5, 5] total 15 [2023-12-02 13:49:00,920 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [122391864] [2023-12-02 13:49:00,920 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-02 13:49:00,920 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-12-02 13:49:00,920 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 13:49:00,921 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-12-02 13:49:00,921 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=140, Invalid=1660, Unknown=6, NotChecked=0, Total=1806 [2023-12-02 13:49:00,922 INFO L87 Difference]: Start difference. First operand 621 states and 829 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 13:49:02,074 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 13:49:02,074 INFO L93 Difference]: Finished difference Result 1223 states and 1655 transitions. [2023-12-02 13:49:02,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-12-02 13:49:02,075 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 13:49:02,075 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 13:49:02,080 INFO L225 Difference]: With dead ends: 1223 [2023-12-02 13:49:02,080 INFO L226 Difference]: Without dead ends: 640 [2023-12-02 13:49:02,083 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 273 GetRequests, 215 SyntacticMatches, 12 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 645 ImplicationChecksByTransitivity, 15.8s TimeCoverageRelationStatistics Valid=180, Invalid=2070, Unknown=6, NotChecked=0, Total=2256 [2023-12-02 13:49:02,083 INFO L413 NwaCegarLoop]: 577 mSDtfsCounter, 9 mSDsluCounter, 3446 mSDsCounter, 0 mSdLazyCounter, 696 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 4023 SdHoareTripleChecker+Invalid, 700 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 696 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-02 13:49:02,083 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 4023 Invalid, 700 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 696 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-02 13:49:02,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 640 states. [2023-12-02 13:49:02,154 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 640 to 634. [2023-12-02 13:49:02,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 634 states, 520 states have (on average 1.4307692307692308) internal successors, (744), 568 states have internal predecessors, (744), 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 13:49:02,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 634 states to 634 states and 847 transitions. [2023-12-02 13:49:02,157 INFO L78 Accepts]: Start accepts. Automaton has 634 states and 847 transitions. Word has length 87 [2023-12-02 13:49:02,157 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 13:49:02,157 INFO L495 AbstractCegarLoop]: Abstraction has 634 states and 847 transitions. [2023-12-02 13:49:02,157 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 13:49:02,158 INFO L276 IsEmpty]: Start isEmpty. Operand 634 states and 847 transitions. [2023-12-02 13:49:02,158 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2023-12-02 13:49:02,159 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 13:49:02,159 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 13:49:02,166 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12de7233-5993-40ef-a6aa-4a9ed282749c/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Ended with exit code 0 [2023-12-02 13:49:02,359 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12de7233-5993-40ef-a6aa-4a9ed282749c/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2023-12-02 13:49:02,359 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [vasprintfErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, vasprintfErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, remove_fileErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 59 more)] === [2023-12-02 13:49:02,360 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 13:49:02,360 INFO L85 PathProgramCache]: Analyzing trace with hash -1713875338, now seen corresponding path program 3 times [2023-12-02 13:49:02,360 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 13:49:02,360 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1477237583] [2023-12-02 13:49:02,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:49:02,360 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 13:49:02,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:49:02,756 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 13:49:02,756 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 13:49:02,756 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1477237583] [2023-12-02 13:49:02,756 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1477237583] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 13:49:02,756 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [126682221] [2023-12-02 13:49:02,757 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-12-02 13:49:02,757 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 13:49:02,757 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12de7233-5993-40ef-a6aa-4a9ed282749c/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 13:49:02,757 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12de7233-5993-40ef-a6aa-4a9ed282749c/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 13:49:02,758 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12de7233-5993-40ef-a6aa-4a9ed282749c/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2023-12-02 13:49:03,221 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-12-02 13:49:03,222 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-02 13:49:03,226 INFO L262 TraceCheckSpWp]: Trace formula consists of 1026 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-02 13:49:03,228 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 13:49:03,268 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 13:49:03,269 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 13:49:03,364 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 13:49:03,364 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [126682221] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 13:49:03,364 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1533368429] [2023-12-02 13:49:03,366 INFO L159 IcfgInterpreter]: Started Sifa with 36 locations of interest [2023-12-02 13:49:03,366 INFO L166 IcfgInterpreter]: Building call graph [2023-12-02 13:49:03,366 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-12-02 13:49:03,366 INFO L176 IcfgInterpreter]: Starting interpretation [2023-12-02 13:49:03,366 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-12-02 13:49:19,541 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 119 for LOIs [2023-12-02 13:49:19,566 INFO L197 IcfgInterpreter]: Interpreting procedure #Ultimate.C_memset with input of size 63 for LOIs [2023-12-02 13:49:19,708 INFO L180 IcfgInterpreter]: Interpretation finished [2023-12-02 13:49:26,969 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '53893#(and (= 21 |ULTIMATE.start_getopt32_~applet_opts#1.base|) (exists ((|v_#memory_int_996| (Array Int (Array Int Int)))) (= |#memory_int| (store |v_#memory_int_996| |ULTIMATE.start_getopt32_~on_off~0#1.base| (store (select |v_#memory_int_996| |ULTIMATE.start_getopt32_~on_off~0#1.base|) |ULTIMATE.start_getopt32_~on_off~0#1.offset| (select (select |v_#memory_int_996| 21) |ULTIMATE.start_getopt32_~s~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)) (exists ((|v_#memory_$Pointer$.offset_786| (Array Int (Array Int Int)))) (= |#memory_$Pointer$.offset| (store |v_#memory_$Pointer$.offset_786| |ULTIMATE.start_getopt32_~on_off~0#1.base| (store (select |v_#memory_$Pointer$.offset_786| |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|))))) (exists ((|v_#memory_$Pointer$.base_790| (Array Int (Array Int Int)))) (= |#memory_$Pointer$.base| (store |v_#memory_$Pointer$.base_790| |ULTIMATE.start_getopt32_~on_off~0#1.base| (store (select |v_#memory_$Pointer$.base_790| |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|))))) (<= 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 13:49:26,969 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2023-12-02 13:49:26,969 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-02 13:49:26,970 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 13 [2023-12-02 13:49:26,970 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1902530804] [2023-12-02 13:49:26,970 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-02 13:49:26,970 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-12-02 13:49:26,970 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 13:49:26,971 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-12-02 13:49:26,971 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=164, Invalid=1395, Unknown=1, NotChecked=0, Total=1560 [2023-12-02 13:49:26,971 INFO L87 Difference]: Start difference. First operand 634 states and 847 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 13:49:27,595 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 13:49:27,595 INFO L93 Difference]: Finished difference Result 1237 states and 1665 transitions. [2023-12-02 13:49:27,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-12-02 13:49:27,596 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 13:49:27,596 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 13:49:27,600 INFO L225 Difference]: With dead ends: 1237 [2023-12-02 13:49:27,600 INFO L226 Difference]: Without dead ends: 643 [2023-12-02 13:49:27,603 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 287 GetRequests, 231 SyntacticMatches, 18 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 737 ImplicationChecksByTransitivity, 7.3s TimeCoverageRelationStatistics Valid=164, Invalid=1395, Unknown=1, NotChecked=0, Total=1560 [2023-12-02 13:49:27,603 INFO L413 NwaCegarLoop]: 579 mSDtfsCounter, 2 mSDsluCounter, 2312 mSDsCounter, 0 mSdLazyCounter, 451 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 2891 SdHoareTripleChecker+Invalid, 452 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 451 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-02 13:49:27,604 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 2891 Invalid, 452 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 451 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-02 13:49:27,605 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 643 states. [2023-12-02 13:49:27,656 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 643 to 643. [2023-12-02 13:49:27,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 643 states, 529 states have (on average 1.4234404536862004) internal successors, (753), 577 states have internal predecessors, (753), 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 13:49:27,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 643 states to 643 states and 856 transitions. [2023-12-02 13:49:27,658 INFO L78 Accepts]: Start accepts. Automaton has 643 states and 856 transitions. Word has length 93 [2023-12-02 13:49:27,658 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 13:49:27,658 INFO L495 AbstractCegarLoop]: Abstraction has 643 states and 856 transitions. [2023-12-02 13:49:27,658 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 13:49:27,658 INFO L276 IsEmpty]: Start isEmpty. Operand 643 states and 856 transitions. [2023-12-02 13:49:27,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2023-12-02 13:49:27,659 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 13:49:27,659 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 13:49:27,667 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12de7233-5993-40ef-a6aa-4a9ed282749c/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Ended with exit code 0 [2023-12-02 13:49:27,859 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28,24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12de7233-5993-40ef-a6aa-4a9ed282749c/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 13:49:27,860 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [vasprintfErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, vasprintfErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, remove_fileErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 59 more)] === [2023-12-02 13:49:27,860 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 13:49:27,860 INFO L85 PathProgramCache]: Analyzing trace with hash -1432943236, now seen corresponding path program 4 times [2023-12-02 13:49:27,860 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 13:49:27,860 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1638775800] [2023-12-02 13:49:27,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:49:27,860 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 13:49:28,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:49:28,790 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 13:49:28,790 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 13:49:28,790 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1638775800] [2023-12-02 13:49:28,791 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1638775800] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 13:49:28,791 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1910600248] [2023-12-02 13:49:28,791 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2023-12-02 13:49:28,791 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 13:49:28,791 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12de7233-5993-40ef-a6aa-4a9ed282749c/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 13:49:28,792 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12de7233-5993-40ef-a6aa-4a9ed282749c/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 13:49:28,795 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12de7233-5993-40ef-a6aa-4a9ed282749c/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2023-12-02 13:49:30,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:49:30,300 INFO L262 TraceCheckSpWp]: Trace formula consists of 1083 conjuncts, 13 conjunts are in the unsatisfiable core [2023-12-02 13:49:30,303 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 13:49:30,360 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 13:49:30,361 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 13:49:30,538 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 13:49:30,538 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1910600248] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 13:49:30,539 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1496078238] [2023-12-02 13:49:30,540 INFO L159 IcfgInterpreter]: Started Sifa with 36 locations of interest [2023-12-02 13:49:30,541 INFO L166 IcfgInterpreter]: Building call graph [2023-12-02 13:49:30,541 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-12-02 13:49:30,541 INFO L176 IcfgInterpreter]: Starting interpretation [2023-12-02 13:49:30,541 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-12-02 13:49:56,113 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 119 for LOIs [2023-12-02 13:49:56,138 INFO L197 IcfgInterpreter]: Interpreting procedure #Ultimate.C_memset with input of size 225 for LOIs [2023-12-02 13:49:56,998 INFO L180 IcfgInterpreter]: Interpretation finished [2023-12-02 13:50:13,436 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '56866#(and (= 21 |ULTIMATE.start_getopt32_~applet_opts#1.base|) (= |ULTIMATE.start_getopt32_~p~3#1.offset| 0) (exists ((|v_#memory_int_1044| (Array Int (Array Int Int)))) (= |#memory_int| (store |v_#memory_int_1044| |ULTIMATE.start_getopt32_~on_off~0#1.base| (store (select |v_#memory_int_1044| |ULTIMATE.start_getopt32_~on_off~0#1.base|) |ULTIMATE.start_getopt32_~on_off~0#1.offset| (select (select |v_#memory_int_1044| 21) |ULTIMATE.start_getopt32_~s~0#1.offset|))))) (= |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) (exists ((|v_#memory_$Pointer$.offset_830| (Array Int (Array Int Int)))) (= |#memory_$Pointer$.offset| (store |v_#memory_$Pointer$.offset_830| |ULTIMATE.start_getopt32_~on_off~0#1.base| (store (select |v_#memory_$Pointer$.offset_830| |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|))))) (<= 2147483648 |ULTIMATE.start_getopt32_#t~nondet91#1|) (= |ULTIMATE.start_getopt32_#varArgs#1.offset| 0) (exists ((|v_#memory_$Pointer$.base_834| (Array Int (Array Int Int)))) (= |#memory_$Pointer$.base| (store |v_#memory_$Pointer$.base_834| |ULTIMATE.start_getopt32_~on_off~0#1.base| (store (select |v_#memory_$Pointer$.base_834| |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___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 13:50:13,436 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2023-12-02 13:50:13,436 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-02 13:50:13,436 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 18 [2023-12-02 13:50:13,437 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1112485703] [2023-12-02 13:50:13,437 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-02 13:50:13,437 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2023-12-02 13:50:13,437 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 13:50:13,438 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2023-12-02 13:50:13,438 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=190, Invalid=1875, Unknown=5, NotChecked=0, Total=2070 [2023-12-02 13:50:13,439 INFO L87 Difference]: Start difference. First operand 643 states and 856 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 13:50:15,554 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 13:50:15,554 INFO L93 Difference]: Finished difference Result 1196 states and 1637 transitions. [2023-12-02 13:50:15,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2023-12-02 13:50:15,555 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 13:50:15,555 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 13:50:15,559 INFO L225 Difference]: With dead ends: 1196 [2023-12-02 13:50:15,559 INFO L226 Difference]: Without dead ends: 667 [2023-12-02 13:50:15,561 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 326 GetRequests, 256 SyntacticMatches, 12 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1003 ImplicationChecksByTransitivity, 17.7s TimeCoverageRelationStatistics Valid=442, Invalid=3093, Unknown=5, NotChecked=0, Total=3540 [2023-12-02 13:50:15,562 INFO L413 NwaCegarLoop]: 580 mSDtfsCounter, 14 mSDsluCounter, 2881 mSDsCounter, 0 mSdLazyCounter, 702 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 3461 SdHoareTripleChecker+Invalid, 713 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 702 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-12-02 13:50:15,562 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 3461 Invalid, 713 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 702 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-12-02 13:50:15,563 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 667 states. [2023-12-02 13:50:15,624 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 667 to 661. [2023-12-02 13:50:15,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 661 states, 545 states have (on average 1.4293577981651375) internal successors, (779), 595 states have internal predecessors, (779), 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 13:50:15,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 661 states to 661 states and 885 transitions. [2023-12-02 13:50:15,626 INFO L78 Accepts]: Start accepts. Automaton has 661 states and 885 transitions. Word has length 102 [2023-12-02 13:50:15,626 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 13:50:15,626 INFO L495 AbstractCegarLoop]: Abstraction has 661 states and 885 transitions. [2023-12-02 13:50:15,626 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 13:50:15,626 INFO L276 IsEmpty]: Start isEmpty. Operand 661 states and 885 transitions. [2023-12-02 13:50:15,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2023-12-02 13:50:15,627 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 13:50:15,627 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 13:50:15,648 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12de7233-5993-40ef-a6aa-4a9ed282749c/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Ended with exit code 0 [2023-12-02 13:50:15,828 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12de7233-5993-40ef-a6aa-4a9ed282749c/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 13:50:15,828 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [vasprintfErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, vasprintfErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, remove_fileErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 59 more)] === [2023-12-02 13:50:15,828 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 13:50:15,828 INFO L85 PathProgramCache]: Analyzing trace with hash -736804123, now seen corresponding path program 3 times [2023-12-02 13:50:15,828 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 13:50:15,828 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [535146696] [2023-12-02 13:50:15,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:50:15,829 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 13:50:15,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:50:16,307 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 13:50:16,307 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 13:50:16,307 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [535146696] [2023-12-02 13:50:16,308 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [535146696] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 13:50:16,308 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [728814510] [2023-12-02 13:50:16,308 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-12-02 13:50:16,308 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 13:50:16,308 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12de7233-5993-40ef-a6aa-4a9ed282749c/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 13:50:16,309 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12de7233-5993-40ef-a6aa-4a9ed282749c/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 13:50:16,313 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12de7233-5993-40ef-a6aa-4a9ed282749c/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2023-12-02 13:50:16,993 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-12-02 13:50:16,993 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-02 13:50:16,997 INFO L262 TraceCheckSpWp]: Trace formula consists of 967 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-02 13:50:17,000 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 13:50:17,067 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 13:50:17,067 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 13:50:17,231 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 13:50:17,231 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [728814510] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 13:50:17,231 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1225904158] [2023-12-02 13:50:17,233 INFO L159 IcfgInterpreter]: Started Sifa with 22 locations of interest [2023-12-02 13:50:17,233 INFO L166 IcfgInterpreter]: Building call graph [2023-12-02 13:50:17,233 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-12-02 13:50:17,233 INFO L176 IcfgInterpreter]: Starting interpretation [2023-12-02 13:50:17,234 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-12-02 13:50:38,304 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 119 for LOIs [2023-12-02 13:50:38,330 INFO L180 IcfgInterpreter]: Interpretation finished [2023-12-02 13:50:43,364 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '59851#(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 13:50:43,364 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2023-12-02 13:50:43,364 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-02 13:50:43,364 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 16 [2023-12-02 13:50:43,364 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [773365372] [2023-12-02 13:50:43,364 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-02 13:50:43,365 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2023-12-02 13:50:43,365 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 13:50:43,366 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2023-12-02 13:50:43,366 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=176, Invalid=815, Unknown=1, NotChecked=0, Total=992 [2023-12-02 13:50:43,366 INFO L87 Difference]: Start difference. First operand 661 states and 885 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 13:50:45,811 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 13:50:45,811 INFO L93 Difference]: Finished difference Result 3890 states and 5512 transitions. [2023-12-02 13:50:45,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-12-02 13:50:45,812 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 13:50:45,812 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 13:50:45,830 INFO L225 Difference]: With dead ends: 3890 [2023-12-02 13:50:45,831 INFO L226 Difference]: Without dead ends: 3889 [2023-12-02 13:50:45,832 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 312 GetRequests, 272 SyntacticMatches, 10 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 591 ImplicationChecksByTransitivity, 5.2s TimeCoverageRelationStatistics Valid=176, Invalid=815, Unknown=1, NotChecked=0, Total=992 [2023-12-02 13:50:45,832 INFO L413 NwaCegarLoop]: 575 mSDtfsCounter, 5181 mSDsluCounter, 5150 mSDsCounter, 0 mSdLazyCounter, 1238 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5293 SdHoareTripleChecker+Valid, 5725 SdHoareTripleChecker+Invalid, 1289 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 1238 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2023-12-02 13:50:45,833 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5293 Valid, 5725 Invalid, 1289 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 1238 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2023-12-02 13:50:45,836 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3889 states. [2023-12-02 13:50:45,922 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3889 to 693. [2023-12-02 13:50:45,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 693 states, 577 states have (on average 1.4194107452339688) internal successors, (819), 627 states have internal predecessors, (819), 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 13:50:45,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 693 states to 693 states and 925 transitions. [2023-12-02 13:50:45,925 INFO L78 Accepts]: Start accepts. Automaton has 693 states and 925 transitions. Word has length 102 [2023-12-02 13:50:45,925 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 13:50:45,925 INFO L495 AbstractCegarLoop]: Abstraction has 693 states and 925 transitions. [2023-12-02 13:50:45,925 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 13:50:45,926 INFO L276 IsEmpty]: Start isEmpty. Operand 693 states and 925 transitions. [2023-12-02 13:50:45,926 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2023-12-02 13:50:45,926 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 13:50:45,927 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 13:50:45,934 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12de7233-5993-40ef-a6aa-4a9ed282749c/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Ended with exit code 0 [2023-12-02 13:50:46,128 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30,26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12de7233-5993-40ef-a6aa-4a9ed282749c/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 13:50:46,128 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [vasprintfErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, vasprintfErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, remove_fileErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 59 more)] === [2023-12-02 13:50:46,128 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 13:50:46,129 INFO L85 PathProgramCache]: Analyzing trace with hash 663123580, now seen corresponding path program 5 times [2023-12-02 13:50:46,129 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 13:50:46,129 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1226734288] [2023-12-02 13:50:46,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:50:46,129 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 13:50:46,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:50:47,382 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 13:50:47,382 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 13:50:47,382 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1226734288] [2023-12-02 13:50:47,382 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1226734288] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 13:50:47,382 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1386913106] [2023-12-02 13:50:47,383 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-12-02 13:50:47,383 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 13:50:47,383 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12de7233-5993-40ef-a6aa-4a9ed282749c/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 13:50:47,384 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12de7233-5993-40ef-a6aa-4a9ed282749c/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 13:50:47,387 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12de7233-5993-40ef-a6aa-4a9ed282749c/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process [2023-12-02 13:51:22,735 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2023-12-02 13:51:22,736 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-02 13:51:22,750 INFO L262 TraceCheckSpWp]: Trace formula consists of 964 conjuncts, 41 conjunts are in the unsatisfiable core [2023-12-02 13:51:22,754 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 13:51:22,777 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2023-12-02 13:51:22,814 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2023-12-02 13:51:22,814 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2023-12-02 13:51:23,181 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 13:51:23,181 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 13:51:23,799 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 13:51:23,800 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1386913106] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 13:51:23,800 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [63785308] [2023-12-02 13:51:23,801 INFO L159 IcfgInterpreter]: Started Sifa with 36 locations of interest [2023-12-02 13:51:23,802 INFO L166 IcfgInterpreter]: Building call graph [2023-12-02 13:51:23,802 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-12-02 13:51:23,802 INFO L176 IcfgInterpreter]: Starting interpretation [2023-12-02 13:51:23,802 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-12-02 13:51:49,707 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 119 for LOIs [2023-12-02 13:51:49,732 INFO L197 IcfgInterpreter]: Interpreting procedure #Ultimate.C_memset with input of size 225 for LOIs [2023-12-02 13:51:51,551 INFO L180 IcfgInterpreter]: Interpretation finished [2023-12-02 13:52:13,106 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '65958#(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) (exists ((|v_#memory_int_1127| (Array Int (Array Int Int)))) (= |#memory_int| (store |v_#memory_int_1127| |ULTIMATE.start_getopt32_~on_off~0#1.base| (store (select |v_#memory_int_1127| |ULTIMATE.start_getopt32_~on_off~0#1.base|) |ULTIMATE.start_getopt32_~on_off~0#1.offset| (select (select |v_#memory_int_1127| 21) |ULTIMATE.start_getopt32_~s~0#1.offset|))))) (= |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) (exists ((|v_#memory_$Pointer$.base_909| (Array Int (Array Int Int)))) (= (store |v_#memory_$Pointer$.base_909| |ULTIMATE.start_getopt32_~on_off~0#1.base| (store (select |v_#memory_$Pointer$.base_909| |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_~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 13:52:13,106 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2023-12-02 13:52:13,106 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-02 13:52:13,106 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 17, 14] total 39 [2023-12-02 13:52:13,106 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1708039410] [2023-12-02 13:52:13,106 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-02 13:52:13,107 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 39 states [2023-12-02 13:52:13,107 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 13:52:13,107 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 39 interpolants. [2023-12-02 13:52:13,109 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=474, Invalid=3811, Unknown=5, NotChecked=0, Total=4290 [2023-12-02 13:52:13,109 INFO L87 Difference]: Start difference. First operand 693 states and 925 transitions. Second operand has 39 states, 36 states have (on average 2.0833333333333335) internal successors, (75), 39 states have internal predecessors, (75), 2 states have call successors, (3), 1 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-12-02 13:52:28,565 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 13:52:28,566 INFO L93 Difference]: Finished difference Result 1561 states and 2195 transitions. [2023-12-02 13:52:28,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2023-12-02 13:52:28,566 INFO L78 Accepts]: Start accepts. Automaton has has 39 states, 36 states have (on average 2.0833333333333335) internal successors, (75), 39 states have internal predecessors, (75), 2 states have call successors, (3), 1 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 108 [2023-12-02 13:52:28,567 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 13:52:28,573 INFO L225 Difference]: With dead ends: 1561 [2023-12-02 13:52:28,573 INFO L226 Difference]: Without dead ends: 1020 [2023-12-02 13:52:28,577 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 373 GetRequests, 262 SyntacticMatches, 12 SemanticMatches, 99 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2943 ImplicationChecksByTransitivity, 33.9s TimeCoverageRelationStatistics Valid=1643, Invalid=8452, Unknown=5, NotChecked=0, Total=10100 [2023-12-02 13:52:28,578 INFO L413 NwaCegarLoop]: 546 mSDtfsCounter, 1216 mSDsluCounter, 9472 mSDsCounter, 0 mSdLazyCounter, 3274 mSolverCounterSat, 137 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1234 SdHoareTripleChecker+Valid, 10018 SdHoareTripleChecker+Invalid, 3411 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 137 IncrementalHoareTripleChecker+Valid, 3274 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2023-12-02 13:52:28,578 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1234 Valid, 10018 Invalid, 3411 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [137 Valid, 3274 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2023-12-02 13:52:28,580 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1020 states. [2023-12-02 13:52:28,649 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1020 to 717. [2023-12-02 13:52:28,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 717 states, 601 states have (on average 1.4226289517470883) internal successors, (855), 651 states have internal predecessors, (855), 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 13:52:28,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 717 states to 717 states and 961 transitions. [2023-12-02 13:52:28,652 INFO L78 Accepts]: Start accepts. Automaton has 717 states and 961 transitions. Word has length 108 [2023-12-02 13:52:28,652 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 13:52:28,652 INFO L495 AbstractCegarLoop]: Abstraction has 717 states and 961 transitions. [2023-12-02 13:52:28,652 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 39 states, 36 states have (on average 2.0833333333333335) internal successors, (75), 39 states have internal predecessors, (75), 2 states have call successors, (3), 1 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-12-02 13:52:28,652 INFO L276 IsEmpty]: Start isEmpty. Operand 717 states and 961 transitions. [2023-12-02 13:52:28,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2023-12-02 13:52:28,653 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 13:52:28,653 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 13:52:28,669 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12de7233-5993-40ef-a6aa-4a9ed282749c/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Ended with exit code 0 [2023-12-02 13:52:28,854 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31,27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12de7233-5993-40ef-a6aa-4a9ed282749c/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 13:52:28,854 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [vasprintfErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, vasprintfErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, remove_fileErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 59 more)] === [2023-12-02 13:52:28,854 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 13:52:28,854 INFO L85 PathProgramCache]: Analyzing trace with hash -106227588, now seen corresponding path program 6 times [2023-12-02 13:52:28,854 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 13:52:28,854 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [449107567] [2023-12-02 13:52:28,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:52:28,855 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 13:52:29,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:52:31,043 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 13:52:31,043 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 13:52:31,043 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [449107567] [2023-12-02 13:52:31,043 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [449107567] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 13:52:31,043 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [450829603] [2023-12-02 13:52:31,043 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-12-02 13:52:31,044 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 13:52:31,044 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12de7233-5993-40ef-a6aa-4a9ed282749c/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 13:52:31,045 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12de7233-5993-40ef-a6aa-4a9ed282749c/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 13:52:31,045 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12de7233-5993-40ef-a6aa-4a9ed282749c/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Waiting until timeout for monitored process [2023-12-02 13:52:42,886 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-12-02 13:52:42,886 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-02 13:52:42,897 INFO L262 TraceCheckSpWp]: Trace formula consists of 1353 conjuncts, 49 conjunts are in the unsatisfiable core [2023-12-02 13:52:42,902 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 13:52:44,070 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 13:52:44,070 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 13:52:46,810 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 13:52:46,810 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [450829603] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 13:52:46,810 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [377420296] [2023-12-02 13:52:46,811 INFO L159 IcfgInterpreter]: Started Sifa with 36 locations of interest [2023-12-02 13:52:46,811 INFO L166 IcfgInterpreter]: Building call graph [2023-12-02 13:52:46,812 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-12-02 13:52:46,812 INFO L176 IcfgInterpreter]: Starting interpretation [2023-12-02 13:52:46,812 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-12-02 13:53:13,098 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 119 for LOIs [2023-12-02 13:53:13,127 INFO L197 IcfgInterpreter]: Interpreting procedure #Ultimate.C_memset with input of size 225 for LOIs [2023-12-02 13:53:13,867 INFO L180 IcfgInterpreter]: Interpretation finished [2023-12-02 13:53:38,601 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '69684#(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) (exists ((|v_#memory_$Pointer$.base_988| (Array Int (Array Int Int)))) (= |#memory_$Pointer$.base| (store |v_#memory_$Pointer$.base_988| |ULTIMATE.start_getopt32_~on_off~0#1.base| (store (select |v_#memory_$Pointer$.base_988| |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|))))) (= 0 (+ |ULTIMATE.start_getopt32_~max_arg~0#1| 1)) (exists ((|v_#memory_int_1210| (Array Int (Array Int Int)))) (= (store |v_#memory_int_1210| |ULTIMATE.start_getopt32_~on_off~0#1.base| (store (select |v_#memory_int_1210| |ULTIMATE.start_getopt32_~on_off~0#1.base|) |ULTIMATE.start_getopt32_~on_off~0#1.offset| (select (select |v_#memory_int_1210| 21) |ULTIMATE.start_getopt32_~s~0#1.offset|))) |#memory_int|)) (<= 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_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 13:53:38,601 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2023-12-02 13:53:38,601 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-02 13:53:38,601 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [26, 26, 26] total 73 [2023-12-02 13:53:38,601 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1247446315] [2023-12-02 13:53:38,601 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-02 13:53:38,602 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 73 states [2023-12-02 13:53:38,602 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 13:53:38,603 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 73 interpolants. [2023-12-02 13:53:38,606 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1373, Invalid=8722, Unknown=5, NotChecked=0, Total=10100 [2023-12-02 13:53:38,607 INFO L87 Difference]: Start difference. First operand 717 states and 961 transitions. Second operand has 73 states, 70 states have (on average 1.4857142857142858) internal successors, (104), 73 states have internal predecessors, (104), 1 states have call successors, (2), 1 states have call predecessors, (2), 4 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4)