./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/busybox-1.22.0/cut-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_9c9048b6-1a30-45db-88ab-2dcf405db505/bin/utaipan-verify-nQ1chXbOIh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c9048b6-1a30-45db-88ab-2dcf405db505/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_9c9048b6-1a30-45db-88ab-2dcf405db505/bin/utaipan-verify-nQ1chXbOIh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c9048b6-1a30-45db-88ab-2dcf405db505/bin/utaipan-verify-nQ1chXbOIh/config/TaipanReach.xml -i ../../sv-benchmarks/c/busybox-1.22.0/cut-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c9048b6-1a30-45db-88ab-2dcf405db505/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_9c9048b6-1a30-45db-88ab-2dcf405db505/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 d445b49cc9b8ac35e0bc0720b38b344ba4949e5ca588b470eb7e5c5212b50a30 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 19:00:51,816 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 19:00:51,884 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c9048b6-1a30-45db-88ab-2dcf405db505/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Overflow-64bit-Taipan_Default.epf [2023-12-02 19:00:51,889 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-02 19:00:51,890 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-02 19:00:51,914 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 19:00:51,914 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-02 19:00:51,915 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-02 19:00:51,916 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-02 19:00:51,916 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-02 19:00:51,917 INFO L153 SettingsManager]: * User list type=DISABLED [2023-12-02 19:00:51,917 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-12-02 19:00:51,918 INFO L153 SettingsManager]: * Explicit value domain=true [2023-12-02 19:00:51,918 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-12-02 19:00:51,919 INFO L153 SettingsManager]: * Octagon Domain=false [2023-12-02 19:00:51,919 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-12-02 19:00:51,920 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-12-02 19:00:51,920 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-12-02 19:00:51,921 INFO L153 SettingsManager]: * Interval Domain=false [2023-12-02 19:00:51,921 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-12-02 19:00:51,922 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-12-02 19:00:51,924 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-12-02 19:00:51,925 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 19:00:51,925 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 19:00:51,926 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-02 19:00:51,926 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 19:00:51,926 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 19:00:51,927 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 19:00:51,927 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 19:00:51,928 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-12-02 19:00:51,928 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-12-02 19:00:51,928 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 19:00:51,929 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 19:00:51,929 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 19:00:51,929 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-02 19:00:51,929 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-02 19:00:51,930 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 19:00:51,930 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 19:00:51,930 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 19:00:51,930 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-02 19:00:51,931 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-12-02 19:00:51,931 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-02 19:00:51,931 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-02 19:00:51,931 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-02 19:00:51,932 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-12-02 19:00:51,932 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-02 19:00:51,932 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_9c9048b6-1a30-45db-88ab-2dcf405db505/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c9048b6-1a30-45db-88ab-2dcf405db505/bin/utaipan-verify-nQ1chXbOIh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d445b49cc9b8ac35e0bc0720b38b344ba4949e5ca588b470eb7e5c5212b50a30 [2023-12-02 19:00:52,153 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 19:00:52,174 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 19:00:52,177 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 19:00:52,178 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 19:00:52,179 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 19:00:52,180 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c9048b6-1a30-45db-88ab-2dcf405db505/bin/utaipan-verify-nQ1chXbOIh/../../sv-benchmarks/c/busybox-1.22.0/cut-1.i [2023-12-02 19:00:54,940 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 19:00:55,297 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 19:00:55,298 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c9048b6-1a30-45db-88ab-2dcf405db505/sv-benchmarks/c/busybox-1.22.0/cut-1.i [2023-12-02 19:00:55,324 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c9048b6-1a30-45db-88ab-2dcf405db505/bin/utaipan-verify-nQ1chXbOIh/data/5edec22de/a3f83e9788af459287efe2dfc0f22a51/FLAG954e12953 [2023-12-02 19:00:55,337 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c9048b6-1a30-45db-88ab-2dcf405db505/bin/utaipan-verify-nQ1chXbOIh/data/5edec22de/a3f83e9788af459287efe2dfc0f22a51 [2023-12-02 19:00:55,340 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 19:00:55,341 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 19:00:55,342 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 19:00:55,342 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 19:00:55,346 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 19:00:55,347 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 07:00:55" (1/1) ... [2023-12-02 19:00:55,348 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@556f332 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:00:55, skipping insertion in model container [2023-12-02 19:00:55,348 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 07:00:55" (1/1) ... [2023-12-02 19:00:55,409 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 19:00:56,724 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 19:00:56,750 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 19:00:56,927 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 19:00:57,137 WARN L675 CHandler]: The function fflush is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 19:00:57,138 WARN L675 CHandler]: The function strerror is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 19:00:57,138 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 19:00:57,138 WARN L675 CHandler]: The function fopen is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 19:00:57,139 WARN L675 CHandler]: The function ferror is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 19:00:57,139 WARN L675 CHandler]: The function fclose is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 19:00:57,139 WARN L675 CHandler]: The function putchar is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 19:00:57,139 WARN L675 CHandler]: The function strtoul is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 19:00:57,140 WARN L675 CHandler]: The function fputs is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 19:00:57,140 WARN L675 CHandler]: The function strtok is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 19:00:57,140 WARN L675 CHandler]: The function fgetc is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 19:00:57,148 INFO L206 MainTranslator]: Completed translation [2023-12-02 19:00:57,149 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:00:57 WrapperNode [2023-12-02 19:00:57,149 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 19:00:57,150 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 19:00:57,150 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 19:00:57,150 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 19:00:57,157 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:00:57" (1/1) ... [2023-12-02 19:00:57,211 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:00:57" (1/1) ... [2023-12-02 19:00:57,298 INFO L138 Inliner]: procedures = 581, calls = 569, calls flagged for inlining = 30, calls inlined = 28, statements flattened = 2213 [2023-12-02 19:00:57,298 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 19:00:57,299 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 19:00:57,299 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 19:00:57,299 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 19:00:57,309 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:00:57" (1/1) ... [2023-12-02 19:00:57,309 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:00:57" (1/1) ... [2023-12-02 19:00:57,325 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:00:57" (1/1) ... [2023-12-02 19:00:57,325 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:00:57" (1/1) ... [2023-12-02 19:00:57,383 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:00:57" (1/1) ... [2023-12-02 19:00:57,399 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:00:57" (1/1) ... [2023-12-02 19:00:57,413 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:00:57" (1/1) ... [2023-12-02 19:00:57,423 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:00:57" (1/1) ... [2023-12-02 19:00:57,465 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 19:00:57,466 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 19:00:57,466 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 19:00:57,466 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 19:00:57,467 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:00:57" (1/1) ... [2023-12-02 19:00:57,473 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 19:00:57,489 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c9048b6-1a30-45db-88ab-2dcf405db505/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 19:00:57,505 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c9048b6-1a30-45db-88ab-2dcf405db505/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-12-02 19:00:57,519 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c9048b6-1a30-45db-88ab-2dcf405db505/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-12-02 19:00:57,559 INFO L130 BoogieDeclarations]: Found specification of procedure putchar [2023-12-02 19:00:57,559 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_realloc [2023-12-02 19:00:57,559 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_realloc [2023-12-02 19:00:57,559 INFO L130 BoogieDeclarations]: Found specification of procedure xatoi_positive [2023-12-02 19:00:57,559 INFO L138 BoogieDeclarations]: Found implementation of procedure xatoi_positive [2023-12-02 19:00:57,559 INFO L130 BoogieDeclarations]: Found specification of procedure xrealloc [2023-12-02 19:00:57,560 INFO L138 BoogieDeclarations]: Found implementation of procedure xrealloc [2023-12-02 19:00:57,560 INFO L130 BoogieDeclarations]: Found specification of procedure strerror [2023-12-02 19:00:57,560 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-12-02 19:00:57,560 INFO L130 BoogieDeclarations]: Found specification of procedure xzalloc [2023-12-02 19:00:57,560 INFO L138 BoogieDeclarations]: Found implementation of procedure xzalloc [2023-12-02 19:00:57,560 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2023-12-02 19:00:57,561 INFO L130 BoogieDeclarations]: Found specification of procedure bb_verror_msg [2023-12-02 19:00:57,561 INFO L138 BoogieDeclarations]: Found implementation of procedure bb_verror_msg [2023-12-02 19:00:57,561 INFO L130 BoogieDeclarations]: Found specification of procedure fgetc [2023-12-02 19:00:57,561 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-12-02 19:00:57,561 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-12-02 19:00:57,561 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-12-02 19:00:57,561 INFO L130 BoogieDeclarations]: Found specification of procedure fputs [2023-12-02 19:00:57,562 INFO L130 BoogieDeclarations]: Found specification of procedure fflush [2023-12-02 19:00:57,562 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 19:00:57,562 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-12-02 19:00:57,562 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 19:00:57,562 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 19:00:57,562 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy [2023-12-02 19:00:57,562 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy [2023-12-02 19:00:57,563 INFO L130 BoogieDeclarations]: Found specification of procedure xmalloc [2023-12-02 19:00:57,563 INFO L138 BoogieDeclarations]: Found implementation of procedure xmalloc [2023-12-02 19:00:57,563 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2023-12-02 19:00:57,563 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-12-02 19:00:57,563 INFO L130 BoogieDeclarations]: Found specification of procedure strsep [2023-12-02 19:00:57,563 INFO L138 BoogieDeclarations]: Found implementation of procedure strsep [2023-12-02 19:00:57,563 INFO L130 BoogieDeclarations]: Found specification of procedure fopen [2023-12-02 19:00:57,564 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2023-12-02 19:00:57,564 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2023-12-02 19:00:57,564 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-02 19:00:57,564 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-02 19:00:57,564 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-12-02 19:00:57,564 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-12-02 19:00:57,564 INFO L130 BoogieDeclarations]: Found specification of procedure ferror [2023-12-02 19:00:57,565 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-12-02 19:00:57,565 INFO L130 BoogieDeclarations]: Found specification of procedure fclose [2023-12-02 19:00:57,565 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-12-02 19:00:57,565 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2023-12-02 19:00:57,565 INFO L130 BoogieDeclarations]: Found specification of procedure strtok [2023-12-02 19:00:57,565 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2023-12-02 19:00:57,565 INFO L130 BoogieDeclarations]: Found specification of procedure bb_error_msg_and_die [2023-12-02 19:00:57,566 INFO L138 BoogieDeclarations]: Found implementation of procedure bb_error_msg_and_die [2023-12-02 19:00:57,566 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-02 19:00:57,992 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 19:00:57,994 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 19:00:59,693 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 19:01:00,332 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 19:01:00,332 INFO L309 CfgBuilder]: Removed 35 assume(true) statements. [2023-12-02 19:01:00,334 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 07:01:00 BoogieIcfgContainer [2023-12-02 19:01:00,334 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 19:01:00,337 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-02 19:01:00,337 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-02 19:01:00,340 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-02 19:01:00,340 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 07:00:55" (1/3) ... [2023-12-02 19:01:00,341 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e4d5447 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 07:01:00, skipping insertion in model container [2023-12-02 19:01:00,341 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:00:57" (2/3) ... [2023-12-02 19:01:00,341 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e4d5447 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 07:01:00, skipping insertion in model container [2023-12-02 19:01:00,342 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 07:01:00" (3/3) ... [2023-12-02 19:01:00,343 INFO L112 eAbstractionObserver]: Analyzing ICFG cut-1.i [2023-12-02 19:01:00,362 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-02 19:01:00,363 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 97 error locations. [2023-12-02 19:01:00,424 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-02 19:01:00,431 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;@2bfc6520, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-02 19:01:00,431 INFO L358 AbstractCegarLoop]: Starting to check reachability of 97 error locations. [2023-12-02 19:01:00,438 INFO L276 IsEmpty]: Start isEmpty. Operand has 545 states, 397 states have (on average 1.6977329974811084) internal successors, (674), 493 states have internal predecessors, (674), 40 states have call successors, (40), 11 states have call predecessors, (40), 11 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40) [2023-12-02 19:01:00,444 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2023-12-02 19:01:00,445 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 19:01:00,445 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2023-12-02 19:01:00,446 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [xatoi_positiveErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, xatoi_positiveErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 94 more)] === [2023-12-02 19:01:00,451 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 19:01:00,451 INFO L85 PathProgramCache]: Analyzing trace with hash 2176684, now seen corresponding path program 1 times [2023-12-02 19:01:00,460 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 19:01:00,460 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1158956996] [2023-12-02 19:01:00,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:01:00,461 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 19:01:00,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 19:01:00,872 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 19:01:00,872 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 19:01:00,872 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1158956996] [2023-12-02 19:01:00,873 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1158956996] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 19:01:00,873 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 19:01:00,873 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-12-02 19:01:00,875 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [423924686] [2023-12-02 19:01:00,876 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 19:01:00,880 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 19:01:00,880 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 19:01:00,906 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 19:01:00,907 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 19:01:00,910 INFO L87 Difference]: Start difference. First operand has 545 states, 397 states have (on average 1.6977329974811084) internal successors, (674), 493 states have internal predecessors, (674), 40 states have call successors, (40), 11 states have call predecessors, (40), 11 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40) 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 19:01:01,341 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 19:01:01,342 INFO L93 Difference]: Finished difference Result 1078 states and 1514 transitions. [2023-12-02 19:01:01,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 19:01:01,344 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 19:01:01,344 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 19:01:01,357 INFO L225 Difference]: With dead ends: 1078 [2023-12-02 19:01:01,357 INFO L226 Difference]: Without dead ends: 535 [2023-12-02 19:01:01,365 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 19:01:01,368 INFO L413 NwaCegarLoop]: 604 mSDtfsCounter, 1 mSDsluCounter, 602 mSDsCounter, 0 mSdLazyCounter, 195 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 1206 SdHoareTripleChecker+Invalid, 199 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 195 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-02 19:01:01,369 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 1206 Invalid, 199 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 195 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-02 19:01:01,388 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 535 states. [2023-12-02 19:01:01,435 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 535 to 535. [2023-12-02 19:01:01,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 535 states, 388 states have (on average 1.6314432989690721) internal successors, (633), 494 states have internal predecessors, (633), 40 states have call successors, (40), 11 states have call predecessors, (40), 10 states have return successors, (29), 29 states have call predecessors, (29), 29 states have call successors, (29) [2023-12-02 19:01:01,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 535 states to 535 states and 702 transitions. [2023-12-02 19:01:01,443 INFO L78 Accepts]: Start accepts. Automaton has 535 states and 702 transitions. Word has length 3 [2023-12-02 19:01:01,443 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 19:01:01,443 INFO L495 AbstractCegarLoop]: Abstraction has 535 states and 702 transitions. [2023-12-02 19:01:01,443 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 19:01:01,443 INFO L276 IsEmpty]: Start isEmpty. Operand 535 states and 702 transitions. [2023-12-02 19:01:01,444 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-12-02 19:01:01,444 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 19:01:01,444 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1] [2023-12-02 19:01:01,444 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-02 19:01:01,445 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [xatoi_positiveErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, xatoi_positiveErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 94 more)] === [2023-12-02 19:01:01,445 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 19:01:01,445 INFO L85 PathProgramCache]: Analyzing trace with hash 421566045, now seen corresponding path program 1 times [2023-12-02 19:01:01,445 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 19:01:01,446 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [327922535] [2023-12-02 19:01:01,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:01:01,446 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 19:01:01,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 19:01:01,608 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 19:01:01,608 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 19:01:01,609 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [327922535] [2023-12-02 19:01:01,609 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [327922535] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 19:01:01,609 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1283971030] [2023-12-02 19:01:01,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:01:01,610 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 19:01:01,610 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c9048b6-1a30-45db-88ab-2dcf405db505/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 19:01:01,611 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c9048b6-1a30-45db-88ab-2dcf405db505/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 19:01:01,624 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c9048b6-1a30-45db-88ab-2dcf405db505/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-12-02 19:01:01,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 19:01:01,934 INFO L262 TraceCheckSpWp]: Trace formula consists of 470 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-02 19:01:01,939 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 19:01:01,979 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 19:01:01,979 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 19:01:01,979 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1283971030] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 19:01:01,979 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-02 19:01:01,980 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 3 [2023-12-02 19:01:01,980 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [954734735] [2023-12-02 19:01:01,981 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 19:01:01,981 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-02 19:01:01,981 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 19:01:01,982 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-02 19:01:01,982 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-02 19:01:01,982 INFO L87 Difference]: Start difference. First operand 535 states and 702 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 19:01:02,341 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 19:01:02,341 INFO L93 Difference]: Finished difference Result 535 states and 702 transitions. [2023-12-02 19:01:02,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-02 19:01:02,341 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 19:01:02,342 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 19:01:02,345 INFO L225 Difference]: With dead ends: 535 [2023-12-02 19:01:02,346 INFO L226 Difference]: Without dead ends: 534 [2023-12-02 19:01:02,346 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 19:01:02,348 INFO L413 NwaCegarLoop]: 601 mSDtfsCounter, 3 mSDsluCounter, 601 mSDsCounter, 0 mSdLazyCounter, 195 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 1202 SdHoareTripleChecker+Invalid, 195 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 195 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-02 19:01:02,383 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 1202 Invalid, 195 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 195 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-02 19:01:02,387 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 534 states. [2023-12-02 19:01:02,406 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 534 to 534. [2023-12-02 19:01:02,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 534 states, 388 states have (on average 1.6288659793814433) internal successors, (632), 493 states have internal predecessors, (632), 40 states have call successors, (40), 11 states have call predecessors, (40), 10 states have return successors, (29), 29 states have call predecessors, (29), 29 states have call successors, (29) [2023-12-02 19:01:02,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 534 states to 534 states and 701 transitions. [2023-12-02 19:01:02,411 INFO L78 Accepts]: Start accepts. Automaton has 534 states and 701 transitions. Word has length 6 [2023-12-02 19:01:02,411 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 19:01:02,411 INFO L495 AbstractCegarLoop]: Abstraction has 534 states and 701 transitions. [2023-12-02 19:01:02,411 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 19:01:02,412 INFO L276 IsEmpty]: Start isEmpty. Operand 534 states and 701 transitions. [2023-12-02 19:01:02,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-12-02 19:01:02,412 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 19:01:02,412 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1] [2023-12-02 19:01:02,425 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c9048b6-1a30-45db-88ab-2dcf405db505/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-12-02 19:01:02,613 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c9048b6-1a30-45db-88ab-2dcf405db505/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 19:01:02,613 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [xatoi_positiveErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, xatoi_positiveErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 94 more)] === [2023-12-02 19:01:02,613 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 19:01:02,614 INFO L85 PathProgramCache]: Analyzing trace with hash 183645993, now seen corresponding path program 1 times [2023-12-02 19:01:02,614 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 19:01:02,614 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1482167945] [2023-12-02 19:01:02,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:01:02,614 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 19:01:02,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 19:01:02,735 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 19:01:02,735 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 19:01:02,735 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1482167945] [2023-12-02 19:01:02,735 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1482167945] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 19:01:02,735 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 19:01:02,736 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-02 19:01:02,736 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1458057690] [2023-12-02 19:01:02,736 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 19:01:02,736 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 19:01:02,736 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 19:01:02,737 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 19:01:02,737 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 19:01:02,737 INFO L87 Difference]: Start difference. First operand 534 states and 701 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 19:01:03,049 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 19:01:03,049 INFO L93 Difference]: Finished difference Result 534 states and 701 transitions. [2023-12-02 19:01:03,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 19:01:03,050 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 19:01:03,050 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 19:01:03,054 INFO L225 Difference]: With dead ends: 534 [2023-12-02 19:01:03,054 INFO L226 Difference]: Without dead ends: 533 [2023-12-02 19:01:03,055 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 19:01:03,056 INFO L413 NwaCegarLoop]: 601 mSDtfsCounter, 0 mSDsluCounter, 601 mSDsCounter, 0 mSdLazyCounter, 189 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1202 SdHoareTripleChecker+Invalid, 190 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 189 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-02 19:01:03,056 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1202 Invalid, 190 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 189 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-02 19:01:03,058 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 533 states. [2023-12-02 19:01:03,073 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 533 to 531. [2023-12-02 19:01:03,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 531 states, 386 states have (on average 1.6295336787564767) internal successors, (629), 490 states have internal predecessors, (629), 40 states have call successors, (40), 11 states have call predecessors, (40), 10 states have return successors, (29), 29 states have call predecessors, (29), 29 states have call successors, (29) [2023-12-02 19:01:03,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 531 states to 531 states and 698 transitions. [2023-12-02 19:01:03,078 INFO L78 Accepts]: Start accepts. Automaton has 531 states and 698 transitions. Word has length 7 [2023-12-02 19:01:03,078 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 19:01:03,078 INFO L495 AbstractCegarLoop]: Abstraction has 531 states and 698 transitions. [2023-12-02 19:01:03,079 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 19:01:03,079 INFO L276 IsEmpty]: Start isEmpty. Operand 531 states and 698 transitions. [2023-12-02 19:01:03,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-12-02 19:01:03,079 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 19:01:03,079 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 19:01:03,079 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-02 19:01:03,080 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [xatoi_positiveErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, xatoi_positiveErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 94 more)] === [2023-12-02 19:01:03,080 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 19:01:03,080 INFO L85 PathProgramCache]: Analyzing trace with hash -2005609062, now seen corresponding path program 1 times [2023-12-02 19:01:03,080 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 19:01:03,080 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1595579633] [2023-12-02 19:01:03,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:01:03,081 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 19:01:03,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 19:01:03,224 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 19:01:03,224 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 19:01:03,224 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1595579633] [2023-12-02 19:01:03,224 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1595579633] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 19:01:03,224 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [667566813] [2023-12-02 19:01:03,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:01:03,225 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 19:01:03,225 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c9048b6-1a30-45db-88ab-2dcf405db505/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 19:01:03,226 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c9048b6-1a30-45db-88ab-2dcf405db505/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 19:01:03,232 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c9048b6-1a30-45db-88ab-2dcf405db505/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-12-02 19:01:03,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 19:01:03,525 INFO L262 TraceCheckSpWp]: Trace formula consists of 486 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-02 19:01:03,527 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 19:01:03,539 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 19:01:03,539 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 19:01:03,539 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [667566813] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 19:01:03,539 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-02 19:01:03,540 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2023-12-02 19:01:03,540 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [600282619] [2023-12-02 19:01:03,540 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 19:01:03,540 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 19:01:03,540 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 19:01:03,541 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 19:01:03,541 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-02 19:01:03,542 INFO L87 Difference]: Start difference. First operand 531 states and 698 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 19:01:03,853 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 19:01:03,854 INFO L93 Difference]: Finished difference Result 531 states and 698 transitions. [2023-12-02 19:01:03,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 19:01:03,854 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 19:01:03,854 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 19:01:03,858 INFO L225 Difference]: With dead ends: 531 [2023-12-02 19:01:03,858 INFO L226 Difference]: Without dead ends: 529 [2023-12-02 19:01:03,859 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 19:01:03,860 INFO L413 NwaCegarLoop]: 594 mSDtfsCounter, 452 mSDsluCounter, 198 mSDsCounter, 0 mSdLazyCounter, 126 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 470 SdHoareTripleChecker+Valid, 792 SdHoareTripleChecker+Invalid, 127 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 126 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-02 19:01:03,860 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [470 Valid, 792 Invalid, 127 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 126 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-02 19:01:03,862 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 529 states. [2023-12-02 19:01:03,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 529 to 529. [2023-12-02 19:01:03,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 529 states, 386 states have (on average 1.6243523316062176) internal successors, (627), 488 states have internal predecessors, (627), 40 states have call successors, (40), 11 states have call predecessors, (40), 10 states have return successors, (29), 29 states have call predecessors, (29), 29 states have call successors, (29) [2023-12-02 19:01:03,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 529 states to 529 states and 696 transitions. [2023-12-02 19:01:03,883 INFO L78 Accepts]: Start accepts. Automaton has 529 states and 696 transitions. Word has length 9 [2023-12-02 19:01:03,884 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 19:01:03,885 INFO L495 AbstractCegarLoop]: Abstraction has 529 states and 696 transitions. [2023-12-02 19:01:03,885 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 19:01:03,885 INFO L276 IsEmpty]: Start isEmpty. Operand 529 states and 696 transitions. [2023-12-02 19:01:03,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-12-02 19:01:03,885 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 19:01:03,885 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 19:01:03,893 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c9048b6-1a30-45db-88ab-2dcf405db505/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-12-02 19:01:04,090 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c9048b6-1a30-45db-88ab-2dcf405db505/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 19:01:04,091 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [xatoi_positiveErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, xatoi_positiveErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 94 more)] === [2023-12-02 19:01:04,091 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 19:01:04,091 INFO L85 PathProgramCache]: Analyzing trace with hash -2044338283, now seen corresponding path program 1 times [2023-12-02 19:01:04,091 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 19:01:04,091 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1607237172] [2023-12-02 19:01:04,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:01:04,091 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 19:01:04,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 19:01:04,279 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 19:01:04,280 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 19:01:04,280 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1607237172] [2023-12-02 19:01:04,280 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1607237172] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 19:01:04,280 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [999923638] [2023-12-02 19:01:04,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:01:04,280 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 19:01:04,281 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c9048b6-1a30-45db-88ab-2dcf405db505/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 19:01:04,282 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c9048b6-1a30-45db-88ab-2dcf405db505/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 19:01:04,292 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c9048b6-1a30-45db-88ab-2dcf405db505/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-12-02 19:01:04,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 19:01:04,589 INFO L262 TraceCheckSpWp]: Trace formula consists of 487 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-02 19:01:04,591 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 19:01:04,609 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 19:01:04,609 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 19:01:04,635 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 19:01:04,636 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [999923638] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 19:01:04,636 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [100508078] [2023-12-02 19:01:04,656 INFO L159 IcfgInterpreter]: Started Sifa with 10 locations of interest [2023-12-02 19:01:04,657 INFO L166 IcfgInterpreter]: Building call graph [2023-12-02 19:01:04,660 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-12-02 19:01:04,666 INFO L176 IcfgInterpreter]: Starting interpretation [2023-12-02 19:01:04,666 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-12-02 19:01:14,722 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 129 for LOIs [2023-12-02 19:01:14,754 INFO L180 IcfgInterpreter]: Interpretation finished [2023-12-02 19:01:16,536 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [100508078] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 19:01:16,536 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2023-12-02 19:01:16,536 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [4, 3, 4] total 13 [2023-12-02 19:01:16,537 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [677373861] [2023-12-02 19:01:16,537 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 19:01:16,537 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-02 19:01:16,537 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 19:01:16,538 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-02 19:01:16,538 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2023-12-02 19:01:16,538 INFO L87 Difference]: Start difference. First operand 529 states and 696 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 19:01:20,098 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 19:01:20,099 INFO L93 Difference]: Finished difference Result 531 states and 697 transitions. [2023-12-02 19:01:20,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-02 19:01:20,099 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 19:01:20,100 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 19:01:20,103 INFO L225 Difference]: With dead ends: 531 [2023-12-02 19:01:20,103 INFO L226 Difference]: Without dead ends: 529 [2023-12-02 19:01:20,104 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 20 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2023-12-02 19:01:20,105 INFO L413 NwaCegarLoop]: 592 mSDtfsCounter, 4 mSDsluCounter, 1919 mSDsCounter, 0 mSdLazyCounter, 944 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 2511 SdHoareTripleChecker+Invalid, 945 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 944 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2023-12-02 19:01:20,105 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 2511 Invalid, 945 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 944 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2023-12-02 19:01:20,107 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 529 states. [2023-12-02 19:01:20,126 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 529 to 529. [2023-12-02 19:01:20,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 529 states, 387 states have (on average 1.6175710594315245) internal successors, (626), 487 states have internal predecessors, (626), 40 states have call successors, (40), 12 states have call predecessors, (40), 11 states have return successors, (29), 29 states have call predecessors, (29), 29 states have call successors, (29) [2023-12-02 19:01:20,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 529 states to 529 states and 695 transitions. [2023-12-02 19:01:20,131 INFO L78 Accepts]: Start accepts. Automaton has 529 states and 695 transitions. Word has length 10 [2023-12-02 19:01:20,131 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 19:01:20,131 INFO L495 AbstractCegarLoop]: Abstraction has 529 states and 695 transitions. [2023-12-02 19:01:20,131 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 19:01:20,131 INFO L276 IsEmpty]: Start isEmpty. Operand 529 states and 695 transitions. [2023-12-02 19:01:20,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-12-02 19:01:20,132 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 19:01:20,132 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 19:01:20,139 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c9048b6-1a30-45db-88ab-2dcf405db505/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2023-12-02 19:01:20,332 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c9048b6-1a30-45db-88ab-2dcf405db505/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 19:01:20,333 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [xatoi_positiveErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, xatoi_positiveErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 94 more)] === [2023-12-02 19:01:20,333 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 19:01:20,333 INFO L85 PathProgramCache]: Analyzing trace with hash 741718983, now seen corresponding path program 1 times [2023-12-02 19:01:20,333 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 19:01:20,333 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1698617984] [2023-12-02 19:01:20,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:01:20,334 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 19:01:20,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 19:01:20,508 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 19:01:20,509 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 19:01:20,509 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1698617984] [2023-12-02 19:01:20,509 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1698617984] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 19:01:20,509 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1784408568] [2023-12-02 19:01:20,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:01:20,510 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 19:01:20,510 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c9048b6-1a30-45db-88ab-2dcf405db505/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 19:01:20,511 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c9048b6-1a30-45db-88ab-2dcf405db505/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 19:01:20,513 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c9048b6-1a30-45db-88ab-2dcf405db505/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-12-02 19:01:20,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 19:01:20,849 INFO L262 TraceCheckSpWp]: Trace formula consists of 588 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-02 19:01:20,851 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 19:01:20,859 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 19:01:20,859 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 19:01:20,859 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1784408568] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 19:01:20,860 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-02 19:01:20,860 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2023-12-02 19:01:20,860 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1059611804] [2023-12-02 19:01:20,860 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 19:01:20,860 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 19:01:20,860 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 19:01:20,861 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 19:01:20,861 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-02 19:01:20,861 INFO L87 Difference]: Start difference. First operand 529 states and 695 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 19:01:21,181 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 19:01:21,181 INFO L93 Difference]: Finished difference Result 529 states and 695 transitions. [2023-12-02 19:01:21,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 19:01:21,181 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 19:01:21,182 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 19:01:21,185 INFO L225 Difference]: With dead ends: 529 [2023-12-02 19:01:21,185 INFO L226 Difference]: Without dead ends: 528 [2023-12-02 19:01:21,186 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 19:01:21,186 INFO L413 NwaCegarLoop]: 595 mSDtfsCounter, 2 mSDsluCounter, 594 mSDsCounter, 0 mSdLazyCounter, 190 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 1189 SdHoareTripleChecker+Invalid, 191 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 190 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-02 19:01:21,187 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 1189 Invalid, 191 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 190 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-02 19:01:21,188 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 528 states. [2023-12-02 19:01:21,207 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 528 to 528. [2023-12-02 19:01:21,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 528 states, 387 states have (on average 1.6149870801033592) internal successors, (625), 486 states have internal predecessors, (625), 40 states have call successors, (40), 12 states have call predecessors, (40), 11 states have return successors, (29), 29 states have call predecessors, (29), 29 states have call successors, (29) [2023-12-02 19:01:21,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 528 states to 528 states and 694 transitions. [2023-12-02 19:01:21,212 INFO L78 Accepts]: Start accepts. Automaton has 528 states and 694 transitions. Word has length 15 [2023-12-02 19:01:21,212 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 19:01:21,212 INFO L495 AbstractCegarLoop]: Abstraction has 528 states and 694 transitions. [2023-12-02 19:01:21,213 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 19:01:21,213 INFO L276 IsEmpty]: Start isEmpty. Operand 528 states and 694 transitions. [2023-12-02 19:01:21,213 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-12-02 19:01:21,213 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 19:01:21,214 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 19:01:21,221 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c9048b6-1a30-45db-88ab-2dcf405db505/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2023-12-02 19:01:21,415 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c9048b6-1a30-45db-88ab-2dcf405db505/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 19:01:21,416 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [xatoi_positiveErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, xatoi_positiveErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 94 more)] === [2023-12-02 19:01:21,416 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 19:01:21,416 INFO L85 PathProgramCache]: Analyzing trace with hash 741777334, now seen corresponding path program 1 times [2023-12-02 19:01:21,416 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 19:01:21,416 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [546551736] [2023-12-02 19:01:21,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:01:21,417 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 19:01:21,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 19:01:21,576 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 19:01:21,576 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 19:01:21,576 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [546551736] [2023-12-02 19:01:21,576 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [546551736] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 19:01:21,576 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2110269154] [2023-12-02 19:01:21,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:01:21,577 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 19:01:21,577 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c9048b6-1a30-45db-88ab-2dcf405db505/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 19:01:21,578 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c9048b6-1a30-45db-88ab-2dcf405db505/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 19:01:21,580 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c9048b6-1a30-45db-88ab-2dcf405db505/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-12-02 19:01:21,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 19:01:21,908 INFO L262 TraceCheckSpWp]: Trace formula consists of 574 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-02 19:01:21,910 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 19:01:21,919 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 19:01:21,919 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 19:01:21,919 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2110269154] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 19:01:21,919 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-02 19:01:21,919 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2023-12-02 19:01:21,920 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [459709554] [2023-12-02 19:01:21,920 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 19:01:21,920 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 19:01:21,920 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 19:01:21,921 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 19:01:21,921 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-02 19:01:21,921 INFO L87 Difference]: Start difference. First operand 528 states and 694 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 19:01:22,254 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 19:01:22,254 INFO L93 Difference]: Finished difference Result 528 states and 694 transitions. [2023-12-02 19:01:22,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 19:01:22,254 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 19:01:22,255 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 19:01:22,257 INFO L225 Difference]: With dead ends: 528 [2023-12-02 19:01:22,257 INFO L226 Difference]: Without dead ends: 527 [2023-12-02 19:01:22,257 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 19:01:22,258 INFO L413 NwaCegarLoop]: 593 mSDtfsCounter, 6 mSDsluCounter, 589 mSDsCounter, 0 mSdLazyCounter, 190 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 1182 SdHoareTripleChecker+Invalid, 191 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 190 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-02 19:01:22,258 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 1182 Invalid, 191 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 190 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-02 19:01:22,260 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 527 states. [2023-12-02 19:01:22,274 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 527 to 527. [2023-12-02 19:01:22,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 527 states, 387 states have (on average 1.6124031007751938) internal successors, (624), 485 states have internal predecessors, (624), 40 states have call successors, (40), 12 states have call predecessors, (40), 11 states have return successors, (29), 29 states have call predecessors, (29), 29 states have call successors, (29) [2023-12-02 19:01:22,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 527 states to 527 states and 693 transitions. [2023-12-02 19:01:22,278 INFO L78 Accepts]: Start accepts. Automaton has 527 states and 693 transitions. Word has length 15 [2023-12-02 19:01:22,278 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 19:01:22,278 INFO L495 AbstractCegarLoop]: Abstraction has 527 states and 693 transitions. [2023-12-02 19:01:22,278 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 19:01:22,279 INFO L276 IsEmpty]: Start isEmpty. Operand 527 states and 693 transitions. [2023-12-02 19:01:22,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2023-12-02 19:01:22,279 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 19:01:22,279 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 19:01:22,286 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c9048b6-1a30-45db-88ab-2dcf405db505/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-12-02 19:01:22,480 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c9048b6-1a30-45db-88ab-2dcf405db505/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 19:01:22,480 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [xatoi_positiveErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, xatoi_positiveErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 94 more)] === [2023-12-02 19:01:22,480 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 19:01:22,480 INFO L85 PathProgramCache]: Analyzing trace with hash 1574421922, now seen corresponding path program 1 times [2023-12-02 19:01:22,480 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 19:01:22,481 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1774679366] [2023-12-02 19:01:22,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:01:22,481 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 19:01:22,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 19:01:22,634 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 19:01:22,635 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 19:01:22,635 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1774679366] [2023-12-02 19:01:22,635 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1774679366] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 19:01:22,635 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1840279003] [2023-12-02 19:01:22,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:01:22,635 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 19:01:22,635 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c9048b6-1a30-45db-88ab-2dcf405db505/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 19:01:22,636 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c9048b6-1a30-45db-88ab-2dcf405db505/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 19:01:22,639 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c9048b6-1a30-45db-88ab-2dcf405db505/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-12-02 19:01:23,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 19:01:23,003 INFO L262 TraceCheckSpWp]: Trace formula consists of 672 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-02 19:01:23,006 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 19:01:23,016 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 19:01:23,016 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 19:01:23,016 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1840279003] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 19:01:23,016 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-02 19:01:23,016 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2023-12-02 19:01:23,016 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [486497691] [2023-12-02 19:01:23,016 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 19:01:23,017 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 19:01:23,017 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 19:01:23,017 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 19:01:23,017 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-02 19:01:23,017 INFO L87 Difference]: Start difference. First operand 527 states and 693 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 19:01:23,286 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 19:01:23,286 INFO L93 Difference]: Finished difference Result 529 states and 695 transitions. [2023-12-02 19:01:23,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 19:01:23,287 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 19:01:23,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 19:01:23,290 INFO L225 Difference]: With dead ends: 529 [2023-12-02 19:01:23,290 INFO L226 Difference]: Without dead ends: 528 [2023-12-02 19:01:23,290 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 19:01:23,291 INFO L413 NwaCegarLoop]: 589 mSDtfsCounter, 225 mSDsluCounter, 390 mSDsCounter, 0 mSdLazyCounter, 166 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 232 SdHoareTripleChecker+Valid, 979 SdHoareTripleChecker+Invalid, 167 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 166 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-02 19:01:23,291 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [232 Valid, 979 Invalid, 167 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 166 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-02 19:01:23,293 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 528 states. [2023-12-02 19:01:23,310 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 528 to 526. [2023-12-02 19:01:23,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 526 states, 387 states have (on average 1.6098191214470283) internal successors, (623), 484 states have internal predecessors, (623), 40 states have call successors, (40), 12 states have call predecessors, (40), 11 states have return successors, (29), 29 states have call predecessors, (29), 29 states have call successors, (29) [2023-12-02 19:01:23,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 526 states to 526 states and 692 transitions. [2023-12-02 19:01:23,315 INFO L78 Accepts]: Start accepts. Automaton has 526 states and 692 transitions. Word has length 16 [2023-12-02 19:01:23,315 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 19:01:23,315 INFO L495 AbstractCegarLoop]: Abstraction has 526 states and 692 transitions. [2023-12-02 19:01:23,315 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 19:01:23,315 INFO L276 IsEmpty]: Start isEmpty. Operand 526 states and 692 transitions. [2023-12-02 19:01:23,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2023-12-02 19:01:23,316 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 19:01:23,316 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 19:01:23,323 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c9048b6-1a30-45db-88ab-2dcf405db505/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2023-12-02 19:01:23,516 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c9048b6-1a30-45db-88ab-2dcf405db505/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 19:01:23,517 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [xatoi_positiveErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, xatoi_positiveErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 94 more)] === [2023-12-02 19:01:23,517 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 19:01:23,517 INFO L85 PathProgramCache]: Analyzing trace with hash 1518452513, now seen corresponding path program 1 times [2023-12-02 19:01:23,517 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 19:01:23,517 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1044601696] [2023-12-02 19:01:23,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:01:23,518 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 19:01:23,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 19:01:23,653 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 19:01:23,653 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 19:01:23,653 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1044601696] [2023-12-02 19:01:23,653 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1044601696] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 19:01:23,653 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1108634892] [2023-12-02 19:01:23,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:01:23,653 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 19:01:23,653 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c9048b6-1a30-45db-88ab-2dcf405db505/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 19:01:23,654 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c9048b6-1a30-45db-88ab-2dcf405db505/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 19:01:23,660 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c9048b6-1a30-45db-88ab-2dcf405db505/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-12-02 19:01:23,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 19:01:23,959 INFO L262 TraceCheckSpWp]: Trace formula consists of 589 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-02 19:01:23,960 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 19:01:23,968 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 19:01:23,968 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 19:01:23,968 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1108634892] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 19:01:23,968 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-02 19:01:23,968 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2023-12-02 19:01:23,968 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1987059587] [2023-12-02 19:01:23,968 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 19:01:23,969 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 19:01:23,969 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 19:01:23,969 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 19:01:23,969 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-02 19:01:23,969 INFO L87 Difference]: Start difference. First operand 526 states and 692 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 19:01:24,300 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 19:01:24,300 INFO L93 Difference]: Finished difference Result 1043 states and 1376 transitions. [2023-12-02 19:01:24,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 19:01:24,301 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 19:01:24,301 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 19:01:24,304 INFO L225 Difference]: With dead ends: 1043 [2023-12-02 19:01:24,304 INFO L226 Difference]: Without dead ends: 529 [2023-12-02 19:01:24,306 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 19:01:24,307 INFO L413 NwaCegarLoop]: 594 mSDtfsCounter, 0 mSDsluCounter, 592 mSDsCounter, 0 mSdLazyCounter, 193 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1186 SdHoareTripleChecker+Invalid, 194 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 193 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-02 19:01:24,307 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1186 Invalid, 194 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 193 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-02 19:01:24,309 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 529 states. [2023-12-02 19:01:24,325 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 529 to 529. [2023-12-02 19:01:24,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 529 states, 390 states have (on average 1.6051282051282052) internal successors, (626), 487 states have internal predecessors, (626), 40 states have call successors, (40), 12 states have call predecessors, (40), 11 states have return successors, (29), 29 states have call predecessors, (29), 29 states have call successors, (29) [2023-12-02 19:01:24,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 529 states to 529 states and 695 transitions. [2023-12-02 19:01:24,330 INFO L78 Accepts]: Start accepts. Automaton has 529 states and 695 transitions. Word has length 16 [2023-12-02 19:01:24,330 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 19:01:24,330 INFO L495 AbstractCegarLoop]: Abstraction has 529 states and 695 transitions. [2023-12-02 19:01:24,330 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 19:01:24,330 INFO L276 IsEmpty]: Start isEmpty. Operand 529 states and 695 transitions. [2023-12-02 19:01:24,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-12-02 19:01:24,331 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 19:01:24,331 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 19:01:24,338 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c9048b6-1a30-45db-88ab-2dcf405db505/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2023-12-02 19:01:24,531 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c9048b6-1a30-45db-88ab-2dcf405db505/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 19:01:24,532 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [xatoi_positiveErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, xatoi_positiveErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 94 more)] === [2023-12-02 19:01:24,532 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 19:01:24,532 INFO L85 PathProgramCache]: Analyzing trace with hash 1562439873, now seen corresponding path program 1 times [2023-12-02 19:01:24,532 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 19:01:24,533 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [769675434] [2023-12-02 19:01:24,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:01:24,533 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 19:01:24,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 19:01:24,673 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 19:01:24,673 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 19:01:24,673 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [769675434] [2023-12-02 19:01:24,673 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [769675434] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 19:01:24,674 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [245536930] [2023-12-02 19:01:24,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:01:24,674 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 19:01:24,674 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c9048b6-1a30-45db-88ab-2dcf405db505/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 19:01:24,675 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c9048b6-1a30-45db-88ab-2dcf405db505/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 19:01:24,680 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c9048b6-1a30-45db-88ab-2dcf405db505/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-12-02 19:01:25,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 19:01:25,038 INFO L262 TraceCheckSpWp]: Trace formula consists of 673 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-02 19:01:25,041 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 19:01:25,058 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 19:01:25,058 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 19:01:25,059 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [245536930] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 19:01:25,059 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-02 19:01:25,059 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2023-12-02 19:01:25,059 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1470201474] [2023-12-02 19:01:25,059 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 19:01:25,059 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 19:01:25,059 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 19:01:25,060 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 19:01:25,060 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-02 19:01:25,060 INFO L87 Difference]: Start difference. First operand 529 states and 695 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 19:01:25,460 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 19:01:25,461 INFO L93 Difference]: Finished difference Result 705 states and 940 transitions. [2023-12-02 19:01:25,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 19:01:25,461 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 19:01:25,461 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 19:01:25,465 INFO L225 Difference]: With dead ends: 705 [2023-12-02 19:01:25,465 INFO L226 Difference]: Without dead ends: 704 [2023-12-02 19:01:25,466 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 19:01:25,466 INFO L413 NwaCegarLoop]: 591 mSDtfsCounter, 223 mSDsluCounter, 584 mSDsCounter, 0 mSdLazyCounter, 206 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 230 SdHoareTripleChecker+Valid, 1175 SdHoareTripleChecker+Invalid, 206 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 206 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-02 19:01:25,467 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [230 Valid, 1175 Invalid, 206 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 206 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-02 19:01:25,468 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 704 states. [2023-12-02 19:01:25,487 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 704 to 533. [2023-12-02 19:01:25,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 533 states, 394 states have (on average 1.601522842639594) internal successors, (631), 491 states have internal predecessors, (631), 40 states have call successors, (40), 12 states have call predecessors, (40), 11 states have return successors, (29), 29 states have call predecessors, (29), 29 states have call successors, (29) [2023-12-02 19:01:25,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 533 states to 533 states and 700 transitions. [2023-12-02 19:01:25,492 INFO L78 Accepts]: Start accepts. Automaton has 533 states and 700 transitions. Word has length 17 [2023-12-02 19:01:25,492 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 19:01:25,492 INFO L495 AbstractCegarLoop]: Abstraction has 533 states and 700 transitions. [2023-12-02 19:01:25,493 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 19:01:25,493 INFO L276 IsEmpty]: Start isEmpty. Operand 533 states and 700 transitions. [2023-12-02 19:01:25,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2023-12-02 19:01:25,493 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 19:01:25,493 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 19:01:25,501 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c9048b6-1a30-45db-88ab-2dcf405db505/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2023-12-02 19:01:25,695 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c9048b6-1a30-45db-88ab-2dcf405db505/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2023-12-02 19:01:25,696 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [xatoi_positiveErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, xatoi_positiveErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 94 more)] === [2023-12-02 19:01:25,696 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 19:01:25,696 INFO L85 PathProgramCache]: Analyzing trace with hash 1623764804, now seen corresponding path program 1 times [2023-12-02 19:01:25,696 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 19:01:25,696 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1109046477] [2023-12-02 19:01:25,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:01:25,697 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 19:01:25,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 19:01:25,832 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 19:01:25,832 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 19:01:25,832 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1109046477] [2023-12-02 19:01:25,832 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1109046477] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 19:01:25,832 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [662893451] [2023-12-02 19:01:25,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:01:25,832 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 19:01:25,833 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c9048b6-1a30-45db-88ab-2dcf405db505/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 19:01:25,833 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c9048b6-1a30-45db-88ab-2dcf405db505/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 19:01:25,836 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c9048b6-1a30-45db-88ab-2dcf405db505/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-12-02 19:01:26,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 19:01:26,136 INFO L262 TraceCheckSpWp]: Trace formula consists of 608 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-02 19:01:26,137 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 19:01:26,144 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 19:01:26,144 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 19:01:26,144 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [662893451] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 19:01:26,144 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-02 19:01:26,144 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2023-12-02 19:01:26,145 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [687371562] [2023-12-02 19:01:26,145 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 19:01:26,145 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 19:01:26,145 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 19:01:26,145 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 19:01:26,145 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-02 19:01:26,146 INFO L87 Difference]: Start difference. First operand 533 states and 700 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 19:01:26,441 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 19:01:26,441 INFO L93 Difference]: Finished difference Result 533 states and 700 transitions. [2023-12-02 19:01:26,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 19:01:26,442 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 19:01:26,442 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 19:01:26,445 INFO L225 Difference]: With dead ends: 533 [2023-12-02 19:01:26,445 INFO L226 Difference]: Without dead ends: 532 [2023-12-02 19:01:26,445 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 19:01:26,446 INFO L413 NwaCegarLoop]: 593 mSDtfsCounter, 0 mSDsluCounter, 592 mSDsCounter, 0 mSdLazyCounter, 190 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1185 SdHoareTripleChecker+Invalid, 191 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 190 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-02 19:01:26,446 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1185 Invalid, 191 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 190 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-02 19:01:26,447 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 532 states. [2023-12-02 19:01:26,460 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 532 to 530. [2023-12-02 19:01:26,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 530 states, 392 states have (on average 1.6020408163265305) internal successors, (628), 488 states have internal predecessors, (628), 40 states have call successors, (40), 12 states have call predecessors, (40), 11 states have return successors, (29), 29 states have call predecessors, (29), 29 states have call successors, (29) [2023-12-02 19:01:26,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 530 states to 530 states and 697 transitions. [2023-12-02 19:01:26,463 INFO L78 Accepts]: Start accepts. Automaton has 530 states and 697 transitions. Word has length 19 [2023-12-02 19:01:26,463 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 19:01:26,464 INFO L495 AbstractCegarLoop]: Abstraction has 530 states and 697 transitions. [2023-12-02 19:01:26,464 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 19:01:26,464 INFO L276 IsEmpty]: Start isEmpty. Operand 530 states and 697 transitions. [2023-12-02 19:01:26,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2023-12-02 19:01:26,465 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 19:01:26,465 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 19:01:26,471 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c9048b6-1a30-45db-88ab-2dcf405db505/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2023-12-02 19:01:26,666 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c9048b6-1a30-45db-88ab-2dcf405db505/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2023-12-02 19:01:26,666 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [xatoi_positiveErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, xatoi_positiveErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 94 more)] === [2023-12-02 19:01:26,667 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 19:01:26,667 INFO L85 PathProgramCache]: Analyzing trace with hash 1625573694, now seen corresponding path program 1 times [2023-12-02 19:01:26,667 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 19:01:26,667 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [711446138] [2023-12-02 19:01:26,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:01:26,667 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 19:01:26,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 19:01:26,798 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-12-02 19:01:26,799 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 19:01:26,799 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [711446138] [2023-12-02 19:01:26,799 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [711446138] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 19:01:26,799 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1013503986] [2023-12-02 19:01:26,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:01:26,800 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 19:01:26,800 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c9048b6-1a30-45db-88ab-2dcf405db505/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 19:01:26,801 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c9048b6-1a30-45db-88ab-2dcf405db505/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 19:01:26,807 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c9048b6-1a30-45db-88ab-2dcf405db505/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-12-02 19:01:27,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 19:01:27,151 INFO L262 TraceCheckSpWp]: Trace formula consists of 594 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-02 19:01:27,153 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 19:01:27,166 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-02 19:01:27,166 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 19:01:27,166 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1013503986] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 19:01:27,167 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-02 19:01:27,167 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2023-12-02 19:01:27,167 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [65244290] [2023-12-02 19:01:27,167 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 19:01:27,167 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 19:01:27,167 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 19:01:27,168 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 19:01:27,168 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-02 19:01:27,168 INFO L87 Difference]: Start difference. First operand 530 states and 697 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 19:01:27,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 19:01:27,434 INFO L93 Difference]: Finished difference Result 538 states and 707 transitions. [2023-12-02 19:01:27,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 19:01:27,435 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 19:01:27,435 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 19:01:27,437 INFO L225 Difference]: With dead ends: 538 [2023-12-02 19:01:27,437 INFO L226 Difference]: Without dead ends: 537 [2023-12-02 19:01:27,438 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 19:01:27,438 INFO L413 NwaCegarLoop]: 592 mSDtfsCounter, 0 mSDsluCounter, 590 mSDsCounter, 0 mSdLazyCounter, 195 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1182 SdHoareTripleChecker+Invalid, 195 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 195 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-02 19:01:27,438 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1182 Invalid, 195 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 195 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-02 19:01:27,440 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 537 states. [2023-12-02 19:01:27,451 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 537 to 537. [2023-12-02 19:01:27,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 537 states, 399 states have (on average 1.5964912280701755) internal successors, (637), 495 states have internal predecessors, (637), 40 states have call successors, (40), 12 states have call predecessors, (40), 11 states have return successors, (29), 29 states have call predecessors, (29), 29 states have call successors, (29) [2023-12-02 19:01:27,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 537 states to 537 states and 706 transitions. [2023-12-02 19:01:27,454 INFO L78 Accepts]: Start accepts. Automaton has 537 states and 706 transitions. Word has length 19 [2023-12-02 19:01:27,454 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 19:01:27,454 INFO L495 AbstractCegarLoop]: Abstraction has 537 states and 706 transitions. [2023-12-02 19:01:27,454 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 19:01:27,454 INFO L276 IsEmpty]: Start isEmpty. Operand 537 states and 706 transitions. [2023-12-02 19:01:27,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2023-12-02 19:01:27,455 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 19:01:27,455 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 19:01:27,462 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c9048b6-1a30-45db-88ab-2dcf405db505/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2023-12-02 19:01:27,655 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c9048b6-1a30-45db-88ab-2dcf405db505/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2023-12-02 19:01:27,655 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [xatoi_positiveErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, xatoi_positiveErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 94 more)] === [2023-12-02 19:01:27,656 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 19:01:27,656 INFO L85 PathProgramCache]: Analyzing trace with hash 247790152, now seen corresponding path program 1 times [2023-12-02 19:01:27,656 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 19:01:27,656 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [947242981] [2023-12-02 19:01:27,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:01:27,656 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 19:01:27,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 19:01:27,791 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 19:01:27,791 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 19:01:27,791 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [947242981] [2023-12-02 19:01:27,791 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [947242981] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 19:01:27,791 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [184233546] [2023-12-02 19:01:27,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:01:27,791 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 19:01:27,791 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c9048b6-1a30-45db-88ab-2dcf405db505/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 19:01:27,792 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c9048b6-1a30-45db-88ab-2dcf405db505/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 19:01:27,795 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c9048b6-1a30-45db-88ab-2dcf405db505/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2023-12-02 19:01:28,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 19:01:28,189 INFO L262 TraceCheckSpWp]: Trace formula consists of 682 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-02 19:01:28,191 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 19:01:28,200 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 19:01:28,200 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 19:01:28,215 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 19:01:28,216 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [184233546] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 19:01:28,216 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [170971770] [2023-12-02 19:01:28,218 INFO L159 IcfgInterpreter]: Started Sifa with 17 locations of interest [2023-12-02 19:01:28,218 INFO L166 IcfgInterpreter]: Building call graph [2023-12-02 19:01:28,219 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-12-02 19:01:28,219 INFO L176 IcfgInterpreter]: Starting interpretation [2023-12-02 19:01:28,219 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-12-02 19:01:37,477 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 129 for LOIs [2023-12-02 19:01:37,526 INFO L180 IcfgInterpreter]: Interpretation finished [2023-12-02 19:01:40,155 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [170971770] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 19:01:40,155 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2023-12-02 19:01:40,156 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [4, 3, 4] total 15 [2023-12-02 19:01:40,156 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1290442927] [2023-12-02 19:01:40,156 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 19:01:40,156 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-02 19:01:40,156 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 19:01:40,157 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-02 19:01:40,157 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=164, Unknown=1, NotChecked=0, Total=210 [2023-12-02 19:01:40,157 INFO L87 Difference]: Start difference. First operand 537 states and 706 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 19:01:44,847 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 19:01:44,847 INFO L93 Difference]: Finished difference Result 1047 states and 1380 transitions. [2023-12-02 19:01:44,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-02 19:01:44,848 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 19:01:44,848 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 19:01:44,850 INFO L225 Difference]: With dead ends: 1047 [2023-12-02 19:01:44,850 INFO L226 Difference]: Without dead ends: 537 [2023-12-02 19:01:44,851 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 51 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=45, Invalid=164, Unknown=1, NotChecked=0, Total=210 [2023-12-02 19:01:44,852 INFO L413 NwaCegarLoop]: 587 mSDtfsCounter, 0 mSDsluCounter, 2332 mSDsCounter, 0 mSdLazyCounter, 1203 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 2919 SdHoareTripleChecker+Invalid, 1204 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1203 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2023-12-02 19:01:44,852 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 2919 Invalid, 1204 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1203 Invalid, 1 Unknown, 0 Unchecked, 4.6s Time] [2023-12-02 19:01:44,853 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 537 states. [2023-12-02 19:01:44,866 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 537 to 537. [2023-12-02 19:01:44,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 537 states, 399 states have (on average 1.593984962406015) internal successors, (636), 495 states have internal predecessors, (636), 40 states have call successors, (40), 12 states have call predecessors, (40), 11 states have return successors, (29), 29 states have call predecessors, (29), 29 states have call successors, (29) [2023-12-02 19:01:44,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 537 states to 537 states and 705 transitions. [2023-12-02 19:01:44,870 INFO L78 Accepts]: Start accepts. Automaton has 537 states and 705 transitions. Word has length 21 [2023-12-02 19:01:44,870 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 19:01:44,870 INFO L495 AbstractCegarLoop]: Abstraction has 537 states and 705 transitions. [2023-12-02 19:01:44,870 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 19:01:44,870 INFO L276 IsEmpty]: Start isEmpty. Operand 537 states and 705 transitions. [2023-12-02 19:01:44,871 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2023-12-02 19:01:44,871 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 19:01:44,871 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 19:01:44,877 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c9048b6-1a30-45db-88ab-2dcf405db505/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2023-12-02 19:01:45,075 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c9048b6-1a30-45db-88ab-2dcf405db505/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 19:01:45,076 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [xatoi_positiveErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, xatoi_positiveErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 94 more)] === [2023-12-02 19:01:45,076 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 19:01:45,076 INFO L85 PathProgramCache]: Analyzing trace with hash 1162538647, now seen corresponding path program 1 times [2023-12-02 19:01:45,076 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 19:01:45,076 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [255040461] [2023-12-02 19:01:45,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:01:45,076 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 19:01:45,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 19:01:45,219 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 19:01:45,219 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 19:01:45,220 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [255040461] [2023-12-02 19:01:45,220 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [255040461] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 19:01:45,220 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1275593569] [2023-12-02 19:01:45,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:01:45,220 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 19:01:45,220 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c9048b6-1a30-45db-88ab-2dcf405db505/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 19:01:45,221 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c9048b6-1a30-45db-88ab-2dcf405db505/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 19:01:45,227 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c9048b6-1a30-45db-88ab-2dcf405db505/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2023-12-02 19:01:45,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 19:01:45,571 INFO L262 TraceCheckSpWp]: Trace formula consists of 663 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-02 19:01:45,573 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 19:01:45,584 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 19:01:45,584 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 19:01:45,603 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 19:01:45,603 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1275593569] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 19:01:45,604 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1814834153] [2023-12-02 19:01:45,606 INFO L159 IcfgInterpreter]: Started Sifa with 18 locations of interest [2023-12-02 19:01:45,606 INFO L166 IcfgInterpreter]: Building call graph [2023-12-02 19:01:45,607 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-12-02 19:01:45,607 INFO L176 IcfgInterpreter]: Starting interpretation [2023-12-02 19:01:45,607 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-12-02 19:02:03,040 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 129 for LOIs [2023-12-02 19:02:03,069 INFO L180 IcfgInterpreter]: Interpretation finished [2023-12-02 19:02:05,278 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '19536#(<= 2147483647 |ULTIMATE.start_main_~i~6#1|)' at error location [2023-12-02 19:02:05,278 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2023-12-02 19:02:05,278 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-02 19:02:05,278 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 3, 4] total 7 [2023-12-02 19:02:05,278 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2076980848] [2023-12-02 19:02:05,278 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-02 19:02:05,278 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-02 19:02:05,279 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 19:02:05,279 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-02 19:02:05,279 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=288, Unknown=0, NotChecked=0, Total=342 [2023-12-02 19:02:05,279 INFO L87 Difference]: Start difference. First operand 537 states and 705 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 19:02:05,654 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 19:02:05,654 INFO L93 Difference]: Finished difference Result 1078 states and 1416 transitions. [2023-12-02 19:02:05,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-02 19:02:05,655 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 19:02:05,655 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 19:02:05,657 INFO L225 Difference]: With dead ends: 1078 [2023-12-02 19:02:05,657 INFO L226 Difference]: Without dead ends: 546 [2023-12-02 19:02:05,658 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 62 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 104 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=54, Invalid=288, Unknown=0, NotChecked=0, Total=342 [2023-12-02 19:02:05,659 INFO L413 NwaCegarLoop]: 593 mSDtfsCounter, 4 mSDsluCounter, 1779 mSDsCounter, 0 mSdLazyCounter, 385 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 2372 SdHoareTripleChecker+Invalid, 387 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 385 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-02 19:02:05,659 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 2372 Invalid, 387 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 385 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-02 19:02:05,661 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 546 states. [2023-12-02 19:02:05,681 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 546 to 546. [2023-12-02 19:02:05,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 546 states, 408 states have (on average 1.5808823529411764) internal successors, (645), 504 states have internal predecessors, (645), 40 states have call successors, (40), 12 states have call predecessors, (40), 11 states have return successors, (29), 29 states have call predecessors, (29), 29 states have call successors, (29) [2023-12-02 19:02:05,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 546 states to 546 states and 714 transitions. [2023-12-02 19:02:05,685 INFO L78 Accepts]: Start accepts. Automaton has 546 states and 714 transitions. Word has length 26 [2023-12-02 19:02:05,685 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 19:02:05,685 INFO L495 AbstractCegarLoop]: Abstraction has 546 states and 714 transitions. [2023-12-02 19:02:05,685 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 19:02:05,685 INFO L276 IsEmpty]: Start isEmpty. Operand 546 states and 714 transitions. [2023-12-02 19:02:05,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2023-12-02 19:02:05,686 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 19:02:05,687 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 19:02:05,694 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c9048b6-1a30-45db-88ab-2dcf405db505/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2023-12-02 19:02:05,891 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c9048b6-1a30-45db-88ab-2dcf405db505/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2023-12-02 19:02:05,892 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [xatoi_positiveErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, xatoi_positiveErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 94 more)] === [2023-12-02 19:02:05,892 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 19:02:05,892 INFO L85 PathProgramCache]: Analyzing trace with hash 863720998, now seen corresponding path program 2 times [2023-12-02 19:02:05,892 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 19:02:05,892 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [545070449] [2023-12-02 19:02:05,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:02:05,892 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 19:02:05,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 19:02:06,060 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 19:02:06,060 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 19:02:06,060 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [545070449] [2023-12-02 19:02:06,060 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [545070449] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 19:02:06,060 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [827655928] [2023-12-02 19:02:06,061 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-12-02 19:02:06,061 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 19:02:06,061 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c9048b6-1a30-45db-88ab-2dcf405db505/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 19:02:06,062 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c9048b6-1a30-45db-88ab-2dcf405db505/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 19:02:06,064 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c9048b6-1a30-45db-88ab-2dcf405db505/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2023-12-02 19:02:06,440 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2023-12-02 19:02:06,441 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-02 19:02:06,443 INFO L262 TraceCheckSpWp]: Trace formula consists of 556 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-02 19:02:06,444 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 19:02:06,478 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 19:02:06,478 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 19:02:06,514 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 19:02:06,514 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [827655928] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 19:02:06,514 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [82963941] [2023-12-02 19:02:06,516 INFO L159 IcfgInterpreter]: Started Sifa with 18 locations of interest [2023-12-02 19:02:06,516 INFO L166 IcfgInterpreter]: Building call graph [2023-12-02 19:02:06,517 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-12-02 19:02:06,517 INFO L176 IcfgInterpreter]: Starting interpretation [2023-12-02 19:02:06,517 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-12-02 19:02:20,102 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 129 for LOIs [2023-12-02 19:02:20,132 INFO L180 IcfgInterpreter]: Interpretation finished [2023-12-02 19:02:23,182 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '21673#(and (= |~#bb_msg_memory_exhausted~0.base| 21) (= 23 |~#bb_msg_standard_output~0.base|) (= ~option_mask32~0 0) (= ~xfunc_error_retval~0 1) (<= 1 |#StackHeapBarrier|) (= |~#bb_errno_location~0.offset| 0) (= |ULTIMATE.start_main_~a~0#1.offset| 0) (= ~optind~0 1) (= |~#bb_null_long_options~0.base| 24) (= |~#die_jmp~0.base| 25) (<= 2147483647 |ULTIMATE.start_main_~i~6#1|) (= ~msg_eol~0.base 3) (<= |ULTIMATE.start_main_~argc~1#1| 10000) (= |~#bb_msg_standard_input~0.offset| 0) (= |~#_op_on_field~0.offset| 0) (<= 1 |ULTIMATE.start_main_~argc~1#1|) (= 22 |~#bb_msg_standard_input~0.base|) (= |~#_op_on_field~0.base| 27) (= |~#bb_null_long_options~0.offset| 0) (= ~opt_complementary~0.offset 0) (= |ULTIMATE.start_main_~mem_track~0#1.offset| 0) (= ~msg_eol~0.offset 0) (= |~#bb_msg_memory_exhausted~0.offset| 0) (= ~applet_name~0.offset 0) (= ~applet_long_options~0.base 0) (= ~bb_errno~0.base 20) (= ~logmode~0 1) (= 28 |~#dummy_utmp~0.base|) (= |~#bb_msg_standard_output~0.offset| 0) (= ~opt_complementary~0.base 0) (= ~bb_errno~0.offset 0) (= |~#dummy_utmp~0.offset| 0) (= |ULTIMATE.start_main_~argv~0#1.offset| 0) (= |~#optstring~0.base| 26) (= |~#optstring~0.offset| 0) (= |~#die_jmp~0.offset| 0) (= ~applet_long_options~0.offset 0) (= |~#bb_errno_location~0.base| 20) (= ~die_sleep~0 0))' at error location [2023-12-02 19:02:23,183 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2023-12-02 19:02:23,183 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-02 19:02:23,183 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 3, 3] total 8 [2023-12-02 19:02:23,183 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [921538635] [2023-12-02 19:02:23,183 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-02 19:02:23,183 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-02 19:02:23,184 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 19:02:23,184 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-02 19:02:23,184 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=339, Unknown=0, NotChecked=0, Total=420 [2023-12-02 19:02:23,184 INFO L87 Difference]: Start difference. First operand 546 states and 714 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 19:02:23,736 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 19:02:23,736 INFO L93 Difference]: Finished difference Result 1075 states and 1412 transitions. [2023-12-02 19:02:23,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-02 19:02:23,737 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 19:02:23,737 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 19:02:23,740 INFO L225 Difference]: With dead ends: 1075 [2023-12-02 19:02:23,740 INFO L226 Difference]: Without dead ends: 555 [2023-12-02 19:02:23,742 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 85 SyntacticMatches, 4 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 149 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=119, Invalid=481, Unknown=0, NotChecked=0, Total=600 [2023-12-02 19:02:23,742 INFO L413 NwaCegarLoop]: 584 mSDtfsCounter, 871 mSDsluCounter, 1366 mSDsCounter, 0 mSdLazyCounter, 335 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 890 SdHoareTripleChecker+Valid, 1950 SdHoareTripleChecker+Invalid, 357 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 335 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-02 19:02:23,742 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [890 Valid, 1950 Invalid, 357 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 335 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-02 19:02:23,744 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 555 states. [2023-12-02 19:02:23,758 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 555 to 542. [2023-12-02 19:02:23,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 542 states, 405 states have (on average 1.5802469135802468) internal successors, (640), 500 states have internal predecessors, (640), 40 states have call successors, (40), 12 states have call predecessors, (40), 11 states have return successors, (29), 29 states have call predecessors, (29), 29 states have call successors, (29) [2023-12-02 19:02:23,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 542 states to 542 states and 709 transitions. [2023-12-02 19:02:23,762 INFO L78 Accepts]: Start accepts. Automaton has 542 states and 709 transitions. Word has length 35 [2023-12-02 19:02:23,762 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 19:02:23,762 INFO L495 AbstractCegarLoop]: Abstraction has 542 states and 709 transitions. [2023-12-02 19:02:23,762 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 19:02:23,762 INFO L276 IsEmpty]: Start isEmpty. Operand 542 states and 709 transitions. [2023-12-02 19:02:23,763 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2023-12-02 19:02:23,763 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 19:02:23,763 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 19:02:23,770 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c9048b6-1a30-45db-88ab-2dcf405db505/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2023-12-02 19:02:23,963 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c9048b6-1a30-45db-88ab-2dcf405db505/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 19:02:23,963 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [xatoi_positiveErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, xatoi_positiveErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 94 more)] === [2023-12-02 19:02:23,964 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 19:02:23,964 INFO L85 PathProgramCache]: Analyzing trace with hash -631407915, now seen corresponding path program 1 times [2023-12-02 19:02:23,964 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 19:02:23,964 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [813082590] [2023-12-02 19:02:23,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:02:23,964 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 19:02:24,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 19:02:24,155 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 19:02:24,156 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 19:02:24,156 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [813082590] [2023-12-02 19:02:24,156 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [813082590] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 19:02:24,156 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1941634994] [2023-12-02 19:02:24,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:02:24,156 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 19:02:24,156 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c9048b6-1a30-45db-88ab-2dcf405db505/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 19:02:24,157 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c9048b6-1a30-45db-88ab-2dcf405db505/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 19:02:24,164 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c9048b6-1a30-45db-88ab-2dcf405db505/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2023-12-02 19:02:24,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 19:02:24,528 INFO L262 TraceCheckSpWp]: Trace formula consists of 827 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-02 19:02:24,530 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 19:02:24,564 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 19:02:24,564 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 19:02:24,627 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 19:02:24,627 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1941634994] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 19:02:24,627 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1529706581] [2023-12-02 19:02:24,629 INFO L159 IcfgInterpreter]: Started Sifa with 22 locations of interest [2023-12-02 19:02:24,629 INFO L166 IcfgInterpreter]: Building call graph [2023-12-02 19:02:24,630 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-12-02 19:02:24,630 INFO L176 IcfgInterpreter]: Starting interpretation [2023-12-02 19:02:24,630 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-12-02 19:02:47,987 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 129 for LOIs [2023-12-02 19:02:48,016 INFO L180 IcfgInterpreter]: Interpretation finished [2023-12-02 19:02:56,949 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '23845#(and (= 9 |ULTIMATE.start___main_~delim~0#1|) (= |ULTIMATE.start___main_~cut_lists~0#1.offset| 0) (= 0 (+ |ULTIMATE.start_getopt32_~max_arg~0#1| 1)) (= |ULTIMATE.start___main_~nlists~0#1| 0) (= |ULTIMATE.start___main_~cut_lists~0#1.base| 0) (= |ULTIMATE.start___main_~#sopt~0#1.offset| 0) (= 7 ~opt_complementary~0.base) (= |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~varargs112#1.offset| 0) (= 0 |ULTIMATE.start___main_~#ltok~0#1.offset|) (= |ULTIMATE.start_getopt32_~min_arg~0#1| 0) (= |ULTIMATE.start_getopt32_~#complementary~0#1.offset| 0) (= |ULTIMATE.start_getopt32_~requires~0#1| 0))' at error location [2023-12-02 19:02:56,949 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2023-12-02 19:02:56,949 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-02 19:02:56,949 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 6, 7] total 14 [2023-12-02 19:02:56,949 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1637413277] [2023-12-02 19:02:56,949 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-02 19:02:56,950 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-12-02 19:02:56,950 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 19:02:56,950 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-12-02 19:02:56,951 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=115, Invalid=752, Unknown=3, NotChecked=0, Total=870 [2023-12-02 19:02:56,951 INFO L87 Difference]: Start difference. First operand 542 states and 709 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 19:02:57,602 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 19:02:57,602 INFO L93 Difference]: Finished difference Result 1434 states and 1911 transitions. [2023-12-02 19:02:57,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-02 19:02:57,602 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 19:02:57,602 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 19:02:57,606 INFO L225 Difference]: With dead ends: 1434 [2023-12-02 19:02:57,606 INFO L226 Difference]: Without dead ends: 906 [2023-12-02 19:02:57,608 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 89 SyntacticMatches, 4 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 333 ImplicationChecksByTransitivity, 9.0s TimeCoverageRelationStatistics Valid=115, Invalid=752, Unknown=3, NotChecked=0, Total=870 [2023-12-02 19:02:57,608 INFO L413 NwaCegarLoop]: 586 mSDtfsCounter, 673 mSDsluCounter, 2524 mSDsCounter, 0 mSdLazyCounter, 587 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 687 SdHoareTripleChecker+Valid, 3110 SdHoareTripleChecker+Invalid, 596 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 587 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-02 19:02:57,608 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [687 Valid, 3110 Invalid, 596 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 587 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-02 19:02:57,610 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 906 states. [2023-12-02 19:02:57,640 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 906 to 564. [2023-12-02 19:02:57,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 564 states, 427 states have (on average 1.5526932084309133) internal successors, (663), 522 states have internal predecessors, (663), 40 states have call successors, (40), 12 states have call predecessors, (40), 11 states have return successors, (29), 29 states have call predecessors, (29), 29 states have call successors, (29) [2023-12-02 19:02:57,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 564 states to 564 states and 732 transitions. [2023-12-02 19:02:57,644 INFO L78 Accepts]: Start accepts. Automaton has 564 states and 732 transitions. Word has length 40 [2023-12-02 19:02:57,644 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 19:02:57,644 INFO L495 AbstractCegarLoop]: Abstraction has 564 states and 732 transitions. [2023-12-02 19:02:57,645 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 19:02:57,645 INFO L276 IsEmpty]: Start isEmpty. Operand 564 states and 732 transitions. [2023-12-02 19:02:57,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2023-12-02 19:02:57,646 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 19:02:57,646 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 19:02:57,654 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c9048b6-1a30-45db-88ab-2dcf405db505/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2023-12-02 19:02:57,846 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15,15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c9048b6-1a30-45db-88ab-2dcf405db505/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 19:02:57,846 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [xatoi_positiveErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, xatoi_positiveErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 94 more)] === [2023-12-02 19:02:57,847 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 19:02:57,847 INFO L85 PathProgramCache]: Analyzing trace with hash -597511571, now seen corresponding path program 1 times [2023-12-02 19:02:57,847 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 19:02:57,847 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1516556616] [2023-12-02 19:02:57,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:02:57,847 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 19:02:57,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 19:02:58,102 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 19:02:58,102 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 19:02:58,103 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1516556616] [2023-12-02 19:02:58,103 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1516556616] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 19:02:58,103 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 19:02:58,103 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-02 19:02:58,103 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1041556889] [2023-12-02 19:02:58,103 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 19:02:58,104 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 19:02:58,104 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 19:02:58,104 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 19:02:58,104 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 19:02:58,104 INFO L87 Difference]: Start difference. First operand 564 states and 732 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 19:02:58,521 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 19:02:58,521 INFO L93 Difference]: Finished difference Result 1127 states and 1483 transitions. [2023-12-02 19:02:58,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 19:02:58,522 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 19:02:58,522 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 19:02:58,525 INFO L225 Difference]: With dead ends: 1127 [2023-12-02 19:02:58,526 INFO L226 Difference]: Without dead ends: 644 [2023-12-02 19:02:58,527 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 19:02:58,527 INFO L413 NwaCegarLoop]: 613 mSDtfsCounter, 91 mSDsluCounter, 545 mSDsCounter, 0 mSdLazyCounter, 243 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 95 SdHoareTripleChecker+Valid, 1158 SdHoareTripleChecker+Invalid, 251 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 243 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-02 19:02:58,528 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [95 Valid, 1158 Invalid, 251 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 243 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-02 19:02:58,529 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 644 states. [2023-12-02 19:02:58,559 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 644 to 601. [2023-12-02 19:02:58,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 601 states, 463 states have (on average 1.5399568034557236) internal successors, (713), 558 states have internal predecessors, (713), 41 states have call successors, (41), 12 states have call predecessors, (41), 11 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) [2023-12-02 19:02:58,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 601 states to 601 states and 784 transitions. [2023-12-02 19:02:58,563 INFO L78 Accepts]: Start accepts. Automaton has 601 states and 784 transitions. Word has length 62 [2023-12-02 19:02:58,563 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 19:02:58,564 INFO L495 AbstractCegarLoop]: Abstraction has 601 states and 784 transitions. [2023-12-02 19:02:58,564 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 19:02:58,564 INFO L276 IsEmpty]: Start isEmpty. Operand 601 states and 784 transitions. [2023-12-02 19:02:58,565 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2023-12-02 19:02:58,565 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 19:02:58,565 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 19:02:58,565 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-12-02 19:02:58,565 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [xatoi_positiveErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, xatoi_positiveErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 94 more)] === [2023-12-02 19:02:58,566 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 19:02:58,566 INFO L85 PathProgramCache]: Analyzing trace with hash -1409158340, now seen corresponding path program 2 times [2023-12-02 19:02:58,566 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 19:02:58,566 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1388323384] [2023-12-02 19:02:58,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:02:58,566 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 19:02:58,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 19:02:58,817 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 19:02:58,817 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 19:02:58,817 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1388323384] [2023-12-02 19:02:58,817 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1388323384] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 19:02:58,818 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2102338844] [2023-12-02 19:02:58,818 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-12-02 19:02:58,818 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 19:02:58,818 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c9048b6-1a30-45db-88ab-2dcf405db505/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 19:02:58,819 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c9048b6-1a30-45db-88ab-2dcf405db505/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 19:02:58,822 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c9048b6-1a30-45db-88ab-2dcf405db505/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2023-12-02 19:02:59,770 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2023-12-02 19:02:59,771 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-02 19:02:59,775 INFO L262 TraceCheckSpWp]: Trace formula consists of 779 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-02 19:02:59,777 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 19:02:59,797 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 19:02:59,797 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 19:02:59,832 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 19:02:59,832 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2102338844] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 19:02:59,832 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [323401651] [2023-12-02 19:02:59,834 INFO L159 IcfgInterpreter]: Started Sifa with 22 locations of interest [2023-12-02 19:02:59,834 INFO L166 IcfgInterpreter]: Building call graph [2023-12-02 19:02:59,834 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-12-02 19:02:59,834 INFO L176 IcfgInterpreter]: Starting interpretation [2023-12-02 19:02:59,834 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-12-02 19:03:22,664 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 129 for LOIs [2023-12-02 19:03:22,693 INFO L180 IcfgInterpreter]: Interpretation finished [2023-12-02 19:03:32,017 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '28619#(and (= 9 |ULTIMATE.start___main_~delim~0#1|) (= |ULTIMATE.start___main_~cut_lists~0#1.offset| 0) (= 0 (+ |ULTIMATE.start_getopt32_~max_arg~0#1| 1)) (= |ULTIMATE.start___main_~nlists~0#1| 0) (= |ULTIMATE.start___main_~cut_lists~0#1.base| 0) (= |ULTIMATE.start___main_~#sopt~0#1.offset| 0) (= 7 ~opt_complementary~0.base) (= |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~varargs112#1.offset| 0) (= 0 |ULTIMATE.start___main_~#ltok~0#1.offset|) (= |ULTIMATE.start_getopt32_~min_arg~0#1| 0) (= |ULTIMATE.start_getopt32_~#complementary~0#1.offset| 0) (= |ULTIMATE.start_getopt32_~requires~0#1| 0))' at error location [2023-12-02 19:03:32,017 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2023-12-02 19:03:32,017 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-02 19:03:32,017 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 8 [2023-12-02 19:03:32,017 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1036142939] [2023-12-02 19:03:32,017 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-02 19:03:32,017 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-02 19:03:32,018 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 19:03:32,018 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-02 19:03:32,018 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=518, Unknown=1, NotChecked=0, Total=600 [2023-12-02 19:03:32,018 INFO L87 Difference]: Start difference. First operand 601 states and 784 transitions. Second operand has 9 states, 8 states have (on average 6.0) internal successors, (48), 9 states have internal predecessors, (48), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-12-02 19:03:33,028 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 19:03:33,028 INFO L93 Difference]: Finished difference Result 1866 states and 2554 transitions. [2023-12-02 19:03:33,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-02 19:03:33,029 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 19:03:33,029 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 19:03:33,038 INFO L225 Difference]: With dead ends: 1866 [2023-12-02 19:03:33,038 INFO L226 Difference]: Without dead ends: 1865 [2023-12-02 19:03:33,038 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 188 GetRequests, 155 SyntacticMatches, 10 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 294 ImplicationChecksByTransitivity, 9.3s TimeCoverageRelationStatistics Valid=81, Invalid=518, Unknown=1, NotChecked=0, Total=600 [2023-12-02 19:03:33,039 INFO L413 NwaCegarLoop]: 589 mSDtfsCounter, 1922 mSDsluCounter, 3461 mSDsCounter, 0 mSdLazyCounter, 802 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1964 SdHoareTripleChecker+Valid, 4050 SdHoareTripleChecker+Invalid, 815 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 802 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-12-02 19:03:33,039 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1964 Valid, 4050 Invalid, 815 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 802 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-12-02 19:03:33,041 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1865 states. [2023-12-02 19:03:33,082 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1865 to 617. [2023-12-02 19:03:33,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 617 states, 479 states have (on average 1.5302713987473904) internal successors, (733), 574 states have internal predecessors, (733), 41 states have call successors, (41), 12 states have call predecessors, (41), 11 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) [2023-12-02 19:03:33,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 617 states to 617 states and 804 transitions. [2023-12-02 19:03:33,086 INFO L78 Accepts]: Start accepts. Automaton has 617 states and 804 transitions. Word has length 62 [2023-12-02 19:03:33,087 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 19:03:33,087 INFO L495 AbstractCegarLoop]: Abstraction has 617 states and 804 transitions. [2023-12-02 19:03:33,087 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 19:03:33,087 INFO L276 IsEmpty]: Start isEmpty. Operand 617 states and 804 transitions. [2023-12-02 19:03:33,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2023-12-02 19:03:33,088 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 19:03:33,088 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 19:03:33,098 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c9048b6-1a30-45db-88ab-2dcf405db505/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2023-12-02 19:03:33,289 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c9048b6-1a30-45db-88ab-2dcf405db505/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2023-12-02 19:03:33,289 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [xatoi_positiveErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, xatoi_positiveErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 94 more)] === [2023-12-02 19:03:33,289 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 19:03:33,289 INFO L85 PathProgramCache]: Analyzing trace with hash -1342934672, now seen corresponding path program 1 times [2023-12-02 19:03:33,289 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 19:03:33,289 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2014174234] [2023-12-02 19:03:33,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:03:33,290 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 19:03:33,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 19:03:33,499 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 19:03:33,499 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 19:03:33,499 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2014174234] [2023-12-02 19:03:33,500 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2014174234] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 19:03:33,500 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 19:03:33,500 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 19:03:33,500 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [14288328] [2023-12-02 19:03:33,500 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 19:03:33,500 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-02 19:03:33,500 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 19:03:33,501 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-02 19:03:33,501 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-02 19:03:33,501 INFO L87 Difference]: Start difference. First operand 617 states and 804 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 19:03:33,947 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 19:03:33,947 INFO L93 Difference]: Finished difference Result 660 states and 858 transitions. [2023-12-02 19:03:33,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-02 19:03:33,948 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 19:03:33,948 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 19:03:33,950 INFO L225 Difference]: With dead ends: 660 [2023-12-02 19:03:33,950 INFO L226 Difference]: Without dead ends: 658 [2023-12-02 19:03:33,951 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 19:03:33,951 INFO L413 NwaCegarLoop]: 611 mSDtfsCounter, 90 mSDsluCounter, 1153 mSDsCounter, 0 mSdLazyCounter, 353 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 94 SdHoareTripleChecker+Valid, 1764 SdHoareTripleChecker+Invalid, 355 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 353 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-02 19:03:33,951 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [94 Valid, 1764 Invalid, 355 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 353 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-02 19:03:33,952 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 658 states. [2023-12-02 19:03:33,973 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 658 to 617. [2023-12-02 19:03:33,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 617 states, 479 states have (on average 1.5260960334029228) internal successors, (731), 574 states have internal predecessors, (731), 41 states have call successors, (41), 12 states have call predecessors, (41), 11 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) [2023-12-02 19:03:33,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 617 states to 617 states and 802 transitions. [2023-12-02 19:03:33,976 INFO L78 Accepts]: Start accepts. Automaton has 617 states and 802 transitions. Word has length 63 [2023-12-02 19:03:33,976 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 19:03:33,976 INFO L495 AbstractCegarLoop]: Abstraction has 617 states and 802 transitions. [2023-12-02 19:03:33,976 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 19:03:33,976 INFO L276 IsEmpty]: Start isEmpty. Operand 617 states and 802 transitions. [2023-12-02 19:03:33,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2023-12-02 19:03:33,977 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 19:03:33,977 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 19:03:33,977 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2023-12-02 19:03:33,978 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW === [xatoi_positiveErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, xatoi_positiveErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 94 more)] === [2023-12-02 19:03:33,978 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 19:03:33,978 INFO L85 PathProgramCache]: Analyzing trace with hash 1092195912, now seen corresponding path program 1 times [2023-12-02 19:03:33,978 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 19:03:33,978 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1530863409] [2023-12-02 19:03:33,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:03:33,978 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 19:03:34,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 19:03:34,173 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 19:03:34,173 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 19:03:34,173 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1530863409] [2023-12-02 19:03:34,173 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1530863409] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 19:03:34,173 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [343009766] [2023-12-02 19:03:34,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:03:34,174 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 19:03:34,174 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c9048b6-1a30-45db-88ab-2dcf405db505/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 19:03:34,175 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c9048b6-1a30-45db-88ab-2dcf405db505/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 19:03:34,184 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c9048b6-1a30-45db-88ab-2dcf405db505/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2023-12-02 19:03:34,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 19:03:34,665 INFO L262 TraceCheckSpWp]: Trace formula consists of 1004 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-02 19:03:34,667 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 19:03:34,683 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 19:03:34,683 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 19:03:34,716 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 19:03:34,716 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [343009766] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 19:03:34,716 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [934569033] [2023-12-02 19:03:34,719 INFO L159 IcfgInterpreter]: Started Sifa with 38 locations of interest [2023-12-02 19:03:34,719 INFO L166 IcfgInterpreter]: Building call graph [2023-12-02 19:03:34,720 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-12-02 19:03:34,720 INFO L176 IcfgInterpreter]: Starting interpretation [2023-12-02 19:03:34,720 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-12-02 19:03:59,127 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 129 for LOIs [2023-12-02 19:03:59,157 INFO L197 IcfgInterpreter]: Interpreting procedure #Ultimate.C_memset with input of size 297 for LOIs [2023-12-02 19:03:59,380 INFO L180 IcfgInterpreter]: Interpretation finished [2023-12-02 19:04:09,695 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [934569033] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 19:04:09,695 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2023-12-02 19:04:09,695 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [5, 5, 5] total 25 [2023-12-02 19:04:09,695 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [932770] [2023-12-02 19:04:09,695 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 19:04:09,696 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2023-12-02 19:04:09,696 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 19:04:09,696 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2023-12-02 19:04:09,696 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=514, Unknown=1, NotChecked=0, Total=600 [2023-12-02 19:04:09,696 INFO L87 Difference]: Start difference. First operand 617 states and 802 transitions. Second operand has 19 states, 16 states have (on average 2.25) internal successors, (36), 17 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 19:04:13,858 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 19:04:22,660 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 19:04:22,660 INFO L93 Difference]: Finished difference Result 1157 states and 1519 transitions. [2023-12-02 19:04:22,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-12-02 19:04:22,660 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 16 states have (on average 2.25) internal successors, (36), 17 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 19:04:22,661 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 19:04:22,664 INFO L225 Difference]: With dead ends: 1157 [2023-12-02 19:04:22,664 INFO L226 Difference]: Without dead ends: 621 [2023-12-02 19:04:22,665 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 218 GetRequests, 180 SyntacticMatches, 12 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 341 ImplicationChecksByTransitivity, 10.6s TimeCoverageRelationStatistics Valid=103, Invalid=652, Unknown=1, NotChecked=0, Total=756 [2023-12-02 19:04:22,666 INFO L413 NwaCegarLoop]: 574 mSDtfsCounter, 12 mSDsluCounter, 5826 mSDsCounter, 0 mSdLazyCounter, 2520 mSolverCounterSat, 4 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 6400 SdHoareTripleChecker+Invalid, 2527 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 2520 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.5s IncrementalHoareTripleChecker+Time [2023-12-02 19:04:22,666 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 6400 Invalid, 2527 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 2520 Invalid, 3 Unknown, 0 Unchecked, 12.5s Time] [2023-12-02 19:04:22,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 621 states. [2023-12-02 19:04:22,705 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 621 to 621. [2023-12-02 19:04:22,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 621 states, 482 states have (on average 1.5228215767634854) internal successors, (734), 577 states have internal predecessors, (734), 42 states have call successors, (42), 13 states have call predecessors, (42), 11 states have return successors, (31), 30 states have call predecessors, (31), 31 states have call successors, (31) [2023-12-02 19:04:22,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 621 states to 621 states and 807 transitions. [2023-12-02 19:04:22,708 INFO L78 Accepts]: Start accepts. Automaton has 621 states and 807 transitions. Word has length 70 [2023-12-02 19:04:22,709 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 19:04:22,709 INFO L495 AbstractCegarLoop]: Abstraction has 621 states and 807 transitions. [2023-12-02 19:04:22,709 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 16 states have (on average 2.25) internal successors, (36), 17 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 19:04:22,709 INFO L276 IsEmpty]: Start isEmpty. Operand 621 states and 807 transitions. [2023-12-02 19:04:22,710 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2023-12-02 19:04:22,710 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 19:04:22,710 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 19:04:22,718 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c9048b6-1a30-45db-88ab-2dcf405db505/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2023-12-02 19:04:22,910 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c9048b6-1a30-45db-88ab-2dcf405db505/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 19:04:22,911 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW === [xatoi_positiveErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, xatoi_positiveErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 94 more)] === [2023-12-02 19:04:22,911 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 19:04:22,911 INFO L85 PathProgramCache]: Analyzing trace with hash 1721089927, now seen corresponding path program 1 times [2023-12-02 19:04:22,911 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 19:04:22,911 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1823224125] [2023-12-02 19:04:22,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:04:22,912 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 19:04:22,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 19:04:23,167 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 19:04:23,167 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 19:04:23,167 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1823224125] [2023-12-02 19:04:23,167 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1823224125] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 19:04:23,167 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1983650908] [2023-12-02 19:04:23,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:04:23,167 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 19:04:23,168 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c9048b6-1a30-45db-88ab-2dcf405db505/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 19:04:23,168 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c9048b6-1a30-45db-88ab-2dcf405db505/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 19:04:23,171 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c9048b6-1a30-45db-88ab-2dcf405db505/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2023-12-02 19:04:23,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 19:04:23,703 INFO L262 TraceCheckSpWp]: Trace formula consists of 1019 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-02 19:04:23,705 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 19:04:23,718 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 19:04:23,718 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 19:04:23,745 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 19:04:23,745 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1983650908] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 19:04:23,745 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1046708276] [2023-12-02 19:04:23,747 INFO L159 IcfgInterpreter]: Started Sifa with 38 locations of interest [2023-12-02 19:04:23,747 INFO L166 IcfgInterpreter]: Building call graph [2023-12-02 19:04:23,747 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-12-02 19:04:23,748 INFO L176 IcfgInterpreter]: Starting interpretation [2023-12-02 19:04:23,748 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-12-02 19:04:59,011 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 129 for LOIs [2023-12-02 19:04:59,040 INFO L197 IcfgInterpreter]: Interpreting procedure #Ultimate.C_memset with input of size 297 for LOIs [2023-12-02 19:05:01,765 INFO L180 IcfgInterpreter]: Interpretation finished [2023-12-02 19:05:52,008 WARN L293 SmtUtils]: Spent 5.69s on a formula simplification. DAG size of input: 436 DAG size of output: 267 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 19:06:08,654 WARN L293 SmtUtils]: Spent 5.97s on a formula simplification. DAG size of input: 436 DAG size of output: 271 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 19:06:22,559 WARN L293 SmtUtils]: Spent 5.64s on a formula simplification. DAG size of input: 442 DAG size of output: 277 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 19:06:25,636 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [1046708276] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 19:06:25,636 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2023-12-02 19:06:25,637 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [31] imperfect sequences [5, 5, 5] total 38 [2023-12-02 19:06:25,637 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [686417324] [2023-12-02 19:06:25,637 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 19:06:25,637 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2023-12-02 19:06:25,637 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 19:06:25,638 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2023-12-02 19:06:25,638 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=109, Invalid=1289, Unknown=8, NotChecked=0, Total=1406 [2023-12-02 19:06:25,638 INFO L87 Difference]: Start difference. First operand 621 states and 807 transitions. Second operand has 32 states, 27 states have (on average 1.3703703703703705) internal successors, (37), 29 states have internal predecessors, (37), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-12-02 19:07:19,670 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 19:07:19,670 INFO L93 Difference]: Finished difference Result 644 states and 838 transitions. [2023-12-02 19:07:19,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2023-12-02 19:07:19,671 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 27 states have (on average 1.3703703703703705) internal successors, (37), 29 states have internal predecessors, (37), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 71 [2023-12-02 19:07:19,671 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 19:07:19,674 INFO L225 Difference]: With dead ends: 644 [2023-12-02 19:07:19,674 INFO L226 Difference]: Without dead ends: 642 [2023-12-02 19:07:19,674 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 227 GetRequests, 172 SyntacticMatches, 13 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 578 ImplicationChecksByTransitivity, 94.7s TimeCoverageRelationStatistics Valid=140, Invalid=1743, Unknown=9, NotChecked=0, Total=1892 [2023-12-02 19:07:19,675 INFO L413 NwaCegarLoop]: 556 mSDtfsCounter, 26 mSDsluCounter, 11344 mSDsCounter, 0 mSdLazyCounter, 6642 mSolverCounterSat, 4 mSolverCounterUnsat, 13 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 41.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 11900 SdHoareTripleChecker+Invalid, 6659 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 6642 IncrementalHoareTripleChecker+Invalid, 13 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 42.9s IncrementalHoareTripleChecker+Time [2023-12-02 19:07:19,675 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 11900 Invalid, 6659 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4 Valid, 6642 Invalid, 13 Unknown, 0 Unchecked, 42.9s Time] [2023-12-02 19:07:19,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 642 states. [2023-12-02 19:07:19,706 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 642 to 637. [2023-12-02 19:07:19,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 637 states, 497 states have (on average 1.523138832997988) internal successors, (757), 592 states have internal predecessors, (757), 42 states have call successors, (42), 13 states have call predecessors, (42), 12 states have return successors, (31), 31 states have call predecessors, (31), 31 states have call successors, (31) [2023-12-02 19:07:19,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 637 states to 637 states and 830 transitions. [2023-12-02 19:07:19,708 INFO L78 Accepts]: Start accepts. Automaton has 637 states and 830 transitions. Word has length 71 [2023-12-02 19:07:19,708 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 19:07:19,708 INFO L495 AbstractCegarLoop]: Abstraction has 637 states and 830 transitions. [2023-12-02 19:07:19,708 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 27 states have (on average 1.3703703703703705) internal successors, (37), 29 states have internal predecessors, (37), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-12-02 19:07:19,709 INFO L276 IsEmpty]: Start isEmpty. Operand 637 states and 830 transitions. [2023-12-02 19:07:19,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2023-12-02 19:07:19,709 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 19:07:19,709 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 19:07:19,718 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c9048b6-1a30-45db-88ab-2dcf405db505/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Ended with exit code 0 [2023-12-02 19:07:19,910 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c9048b6-1a30-45db-88ab-2dcf405db505/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 19:07:19,910 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW === [xatoi_positiveErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, xatoi_positiveErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 94 more)] === [2023-12-02 19:07:19,910 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 19:07:19,910 INFO L85 PathProgramCache]: Analyzing trace with hash 1720457436, now seen corresponding path program 1 times [2023-12-02 19:07:19,910 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 19:07:19,910 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [986424982] [2023-12-02 19:07:19,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:07:19,911 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 19:07:19,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 19:07:20,076 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 19:07:20,076 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 19:07:20,076 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [986424982] [2023-12-02 19:07:20,077 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [986424982] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 19:07:20,077 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 19:07:20,077 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-02 19:07:20,077 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [105741892] [2023-12-02 19:07:20,077 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 19:07:20,077 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 19:07:20,077 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 19:07:20,078 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 19:07:20,078 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 19:07:20,078 INFO L87 Difference]: Start difference. First operand 637 states and 830 transitions. Second operand has 3 states, 2 states have (on average 18.5) internal successors, (37), 3 states have internal predecessors, (37), 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 19:07:20,538 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 19:07:20,538 INFO L93 Difference]: Finished difference Result 1137 states and 1504 transitions. [2023-12-02 19:07:20,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 19:07:20,538 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 18.5) internal successors, (37), 3 states have internal predecessors, (37), 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 71 [2023-12-02 19:07:20,539 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 19:07:20,542 INFO L225 Difference]: With dead ends: 1137 [2023-12-02 19:07:20,542 INFO L226 Difference]: Without dead ends: 688 [2023-12-02 19:07:20,543 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 19:07:20,543 INFO L413 NwaCegarLoop]: 637 mSDtfsCounter, 76 mSDsluCounter, 547 mSDsCounter, 0 mSdLazyCounter, 247 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 79 SdHoareTripleChecker+Valid, 1184 SdHoareTripleChecker+Invalid, 257 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 247 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-02 19:07:20,544 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [79 Valid, 1184 Invalid, 257 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 247 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-02 19:07:20,545 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 688 states. [2023-12-02 19:07:20,595 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 688 to 639. [2023-12-02 19:07:20,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 639 states, 501 states have (on average 1.5169660678642714) internal successors, (760), 594 states have internal predecessors, (760), 42 states have call successors, (42), 13 states have call predecessors, (42), 12 states have return successors, (31), 31 states have call predecessors, (31), 31 states have call successors, (31) [2023-12-02 19:07:20,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 639 states to 639 states and 833 transitions. [2023-12-02 19:07:20,599 INFO L78 Accepts]: Start accepts. Automaton has 639 states and 833 transitions. Word has length 71 [2023-12-02 19:07:20,599 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 19:07:20,599 INFO L495 AbstractCegarLoop]: Abstraction has 639 states and 833 transitions. [2023-12-02 19:07:20,599 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 18.5) internal successors, (37), 3 states have internal predecessors, (37), 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 19:07:20,599 INFO L276 IsEmpty]: Start isEmpty. Operand 639 states and 833 transitions. [2023-12-02 19:07:20,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2023-12-02 19:07:20,600 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 19:07:20,601 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 19:07:20,601 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2023-12-02 19:07:20,601 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW === [xatoi_positiveErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, xatoi_positiveErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 94 more)] === [2023-12-02 19:07:20,601 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 19:07:20,601 INFO L85 PathProgramCache]: Analyzing trace with hash 1794573746, now seen corresponding path program 1 times [2023-12-02 19:07:20,601 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 19:07:20,602 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1803858365] [2023-12-02 19:07:20,602 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:07:20,602 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 19:07:20,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 19:07:20,775 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 19:07:20,775 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 19:07:20,775 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1803858365] [2023-12-02 19:07:20,775 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1803858365] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 19:07:20,776 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 19:07:20,776 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-02 19:07:20,776 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1887778942] [2023-12-02 19:07:20,776 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 19:07:20,776 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 19:07:20,776 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 19:07:20,777 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 19:07:20,777 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 19:07:20,777 INFO L87 Difference]: Start difference. First operand 639 states and 833 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 19:07:21,177 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 19:07:21,177 INFO L93 Difference]: Finished difference Result 1144 states and 1512 transitions. [2023-12-02 19:07:21,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 19:07:21,178 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 19:07:21,178 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 19:07:21,181 INFO L225 Difference]: With dead ends: 1144 [2023-12-02 19:07:21,181 INFO L226 Difference]: Without dead ends: 691 [2023-12-02 19:07:21,182 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 19:07:21,182 INFO L413 NwaCegarLoop]: 586 mSDtfsCounter, 153 mSDsluCounter, 505 mSDsCounter, 0 mSdLazyCounter, 226 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 158 SdHoareTripleChecker+Valid, 1091 SdHoareTripleChecker+Invalid, 241 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 226 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-02 19:07:21,183 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [158 Valid, 1091 Invalid, 241 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 226 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-02 19:07:21,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 691 states. [2023-12-02 19:07:21,216 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 691 to 634. [2023-12-02 19:07:21,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 634 states, 500 states have (on average 1.51) internal successors, (755), 589 states have internal predecessors, (755), 42 states have call successors, (42), 13 states have call predecessors, (42), 12 states have return successors, (31), 31 states have call predecessors, (31), 31 states have call successors, (31) [2023-12-02 19:07:21,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 634 states to 634 states and 828 transitions. [2023-12-02 19:07:21,218 INFO L78 Accepts]: Start accepts. Automaton has 634 states and 828 transitions. Word has length 72 [2023-12-02 19:07:21,218 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 19:07:21,218 INFO L495 AbstractCegarLoop]: Abstraction has 634 states and 828 transitions. [2023-12-02 19:07:21,219 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 19:07:21,219 INFO L276 IsEmpty]: Start isEmpty. Operand 634 states and 828 transitions. [2023-12-02 19:07:21,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2023-12-02 19:07:21,219 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 19:07:21,220 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 19:07:21,220 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2023-12-02 19:07:21,220 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [xatoi_positiveErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, xatoi_positiveErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 94 more)] === [2023-12-02 19:07:21,220 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 19:07:21,220 INFO L85 PathProgramCache]: Analyzing trace with hash 857545807, now seen corresponding path program 1 times [2023-12-02 19:07:21,220 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 19:07:21,220 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1411466107] [2023-12-02 19:07:21,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:07:21,221 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 19:07:21,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 19:07:21,439 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 19:07:21,440 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 19:07:21,440 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1411466107] [2023-12-02 19:07:21,440 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1411466107] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 19:07:21,440 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1929465702] [2023-12-02 19:07:21,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:07:21,440 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 19:07:21,440 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c9048b6-1a30-45db-88ab-2dcf405db505/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 19:07:21,441 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c9048b6-1a30-45db-88ab-2dcf405db505/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 19:07:21,443 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c9048b6-1a30-45db-88ab-2dcf405db505/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2023-12-02 19:07:22,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 19:07:22,022 INFO L262 TraceCheckSpWp]: Trace formula consists of 1053 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-02 19:07:22,024 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 19:07:22,048 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 19:07:22,048 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 19:07:22,084 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 19:07:22,084 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1929465702] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 19:07:22,084 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1840938190] [2023-12-02 19:07:22,086 INFO L159 IcfgInterpreter]: Started Sifa with 36 locations of interest [2023-12-02 19:07:22,086 INFO L166 IcfgInterpreter]: Building call graph [2023-12-02 19:07:22,086 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-12-02 19:07:22,087 INFO L176 IcfgInterpreter]: Starting interpretation [2023-12-02 19:07:22,087 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-12-02 19:08:00,186 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 129 for LOIs [2023-12-02 19:08:00,215 INFO L197 IcfgInterpreter]: Interpreting procedure #Ultimate.C_memset with input of size 297 for LOIs [2023-12-02 19:08:05,329 INFO L180 IcfgInterpreter]: Interpretation finished [2023-12-02 19:08:26,273 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [1840938190] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 19:08:26,273 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2023-12-02 19:08:26,273 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [27] imperfect sequences [4, 5, 5] total 36 [2023-12-02 19:08:26,274 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1765927524] [2023-12-02 19:08:26,274 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 19:08:26,274 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2023-12-02 19:08:26,274 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 19:08:26,275 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2023-12-02 19:08:26,275 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=120, Invalid=1137, Unknown=3, NotChecked=0, Total=1260 [2023-12-02 19:08:26,275 INFO L87 Difference]: Start difference. First operand 634 states and 828 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 19:08:31,281 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 19:08:45,300 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 19:08:45,300 INFO L93 Difference]: Finished difference Result 750 states and 988 transitions. [2023-12-02 19:08:45,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2023-12-02 19:08:45,300 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 19:08:45,301 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 19:08:45,304 INFO L225 Difference]: With dead ends: 750 [2023-12-02 19:08:45,304 INFO L226 Difference]: Without dead ends: 746 [2023-12-02 19:08:45,304 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 226 GetRequests, 173 SyntacticMatches, 15 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 604 ImplicationChecksByTransitivity, 21.6s TimeCoverageRelationStatistics Valid=142, Invalid=1415, Unknown=3, NotChecked=0, Total=1560 [2023-12-02 19:08:45,305 INFO L413 NwaCegarLoop]: 522 mSDtfsCounter, 101 mSDsluCounter, 7507 mSDsCounter, 0 mSdLazyCounter, 4426 mSolverCounterSat, 13 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 102 SdHoareTripleChecker+Valid, 8029 SdHoareTripleChecker+Invalid, 4447 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 4426 IncrementalHoareTripleChecker+Invalid, 8 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18.2s IncrementalHoareTripleChecker+Time [2023-12-02 19:08:45,305 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [102 Valid, 8029 Invalid, 4447 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [13 Valid, 4426 Invalid, 8 Unknown, 0 Unchecked, 18.2s Time] [2023-12-02 19:08:45,307 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 746 states. [2023-12-02 19:08:45,347 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 746 to 701. [2023-12-02 19:08:45,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 701 states, 565 states have (on average 1.5044247787610618) internal successors, (850), 654 states have internal predecessors, (850), 44 states have call successors, (44), 13 states have call predecessors, (44), 12 states have return successors, (33), 33 states have call predecessors, (33), 33 states have call successors, (33) [2023-12-02 19:08:45,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 701 states to 701 states and 927 transitions. [2023-12-02 19:08:45,350 INFO L78 Accepts]: Start accepts. Automaton has 701 states and 927 transitions. Word has length 73 [2023-12-02 19:08:45,350 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 19:08:45,350 INFO L495 AbstractCegarLoop]: Abstraction has 701 states and 927 transitions. [2023-12-02 19:08:45,350 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 19:08:45,351 INFO L276 IsEmpty]: Start isEmpty. Operand 701 states and 927 transitions. [2023-12-02 19:08:45,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2023-12-02 19:08:45,351 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 19:08:45,351 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 19:08:45,358 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c9048b6-1a30-45db-88ab-2dcf405db505/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Ended with exit code 0 [2023-12-02 19:08:45,552 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c9048b6-1a30-45db-88ab-2dcf405db505/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2023-12-02 19:08:45,552 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW === [xatoi_positiveErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, xatoi_positiveErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 94 more)] === [2023-12-02 19:08:45,552 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 19:08:45,552 INFO L85 PathProgramCache]: Analyzing trace with hash -1484983473, now seen corresponding path program 1 times [2023-12-02 19:08:45,552 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 19:08:45,552 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [115152154] [2023-12-02 19:08:45,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:08:45,553 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 19:08:45,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 19:08:45,732 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 19:08:45,732 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 19:08:45,733 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [115152154] [2023-12-02 19:08:45,733 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [115152154] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 19:08:45,733 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [786051935] [2023-12-02 19:08:45,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:08:45,733 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 19:08:45,733 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c9048b6-1a30-45db-88ab-2dcf405db505/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 19:08:45,734 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c9048b6-1a30-45db-88ab-2dcf405db505/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 19:08:45,740 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c9048b6-1a30-45db-88ab-2dcf405db505/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2023-12-02 19:08:46,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 19:08:46,263 INFO L262 TraceCheckSpWp]: Trace formula consists of 1013 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-02 19:08:46,265 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 19:08:46,281 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 19:08:46,281 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 19:08:46,314 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 19:08:46,314 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [786051935] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 19:08:46,314 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [746215265] [2023-12-02 19:08:46,316 INFO L159 IcfgInterpreter]: Started Sifa with 40 locations of interest [2023-12-02 19:08:46,316 INFO L166 IcfgInterpreter]: Building call graph [2023-12-02 19:08:46,317 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-12-02 19:08:46,317 INFO L176 IcfgInterpreter]: Starting interpretation [2023-12-02 19:08:46,317 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-12-02 19:09:16,228 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 129 for LOIs [2023-12-02 19:09:16,259 INFO L197 IcfgInterpreter]: Interpreting procedure #Ultimate.C_memset with input of size 377 for LOIs [2023-12-02 19:09:16,921 INFO L180 IcfgInterpreter]: Interpretation finished [2023-12-02 19:09:39,018 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [746215265] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 19:09:39,018 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2023-12-02 19:09:39,018 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [5, 5, 5] total 30 [2023-12-02 19:09:39,018 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1826686865] [2023-12-02 19:09:39,018 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 19:09:39,018 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2023-12-02 19:09:39,019 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 19:09:39,019 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2023-12-02 19:09:39,019 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=104, Invalid=760, Unknown=6, NotChecked=0, Total=870 [2023-12-02 19:09:39,020 INFO L87 Difference]: Start difference. First operand 701 states and 927 transitions. Second operand has 23 states, 20 states have (on average 1.95) internal successors, (39), 20 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 19:10:03,672 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 19:10:03,672 INFO L93 Difference]: Finished difference Result 1287 states and 1715 transitions. [2023-12-02 19:10:03,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-12-02 19:10:03,673 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 20 states have (on average 1.95) internal successors, (39), 20 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 19:10:03,673 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 19:10:03,676 INFO L225 Difference]: With dead ends: 1287 [2023-12-02 19:10:03,676 INFO L226 Difference]: Without dead ends: 754 [2023-12-02 19:10:03,677 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 231 GetRequests, 188 SyntacticMatches, 10 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 486 ImplicationChecksByTransitivity, 30.9s TimeCoverageRelationStatistics Valid=132, Invalid=1046, Unknown=12, NotChecked=0, Total=1190 [2023-12-02 19:10:03,678 INFO L413 NwaCegarLoop]: 562 mSDtfsCounter, 133 mSDsluCounter, 7119 mSDsCounter, 0 mSdLazyCounter, 3367 mSolverCounterSat, 6 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 134 SdHoareTripleChecker+Valid, 7681 SdHoareTripleChecker+Invalid, 3375 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 3367 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.6s IncrementalHoareTripleChecker+Time [2023-12-02 19:10:03,678 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [134 Valid, 7681 Invalid, 3375 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [6 Valid, 3367 Invalid, 2 Unknown, 0 Unchecked, 15.6s Time] [2023-12-02 19:10:03,679 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 754 states. [2023-12-02 19:10:03,733 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 754 to 703. [2023-12-02 19:10:03,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 703 states, 567 states have (on average 1.5026455026455026) internal successors, (852), 655 states have internal predecessors, (852), 44 states have call successors, (44), 14 states have call predecessors, (44), 12 states have return successors, (33), 33 states have call predecessors, (33), 33 states have call successors, (33) [2023-12-02 19:10:03,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 703 states to 703 states and 929 transitions. [2023-12-02 19:10:03,735 INFO L78 Accepts]: Start accepts. Automaton has 703 states and 929 transitions. Word has length 74 [2023-12-02 19:10:03,736 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 19:10:03,736 INFO L495 AbstractCegarLoop]: Abstraction has 703 states and 929 transitions. [2023-12-02 19:10:03,736 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 20 states have (on average 1.95) internal successors, (39), 20 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 19:10:03,736 INFO L276 IsEmpty]: Start isEmpty. Operand 703 states and 929 transitions. [2023-12-02 19:10:03,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2023-12-02 19:10:03,737 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 19:10:03,737 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, 1] [2023-12-02 19:10:03,744 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c9048b6-1a30-45db-88ab-2dcf405db505/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Ended with exit code 0 [2023-12-02 19:10:03,937 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c9048b6-1a30-45db-88ab-2dcf405db505/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2023-12-02 19:10:03,938 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW === [xatoi_positiveErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, xatoi_positiveErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 94 more)] === [2023-12-02 19:10:03,938 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 19:10:03,938 INFO L85 PathProgramCache]: Analyzing trace with hash -862059680, now seen corresponding path program 1 times [2023-12-02 19:10:03,938 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 19:10:03,938 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1573109413] [2023-12-02 19:10:03,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:10:03,938 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 19:10:04,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 19:10:04,154 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 1 proven. 5 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2023-12-02 19:10:04,154 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 19:10:04,155 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1573109413] [2023-12-02 19:10:04,155 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1573109413] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 19:10:04,155 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2040197413] [2023-12-02 19:10:04,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:10:04,155 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 19:10:04,155 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c9048b6-1a30-45db-88ab-2dcf405db505/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 19:10:04,156 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c9048b6-1a30-45db-88ab-2dcf405db505/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 19:10:04,160 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c9048b6-1a30-45db-88ab-2dcf405db505/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2023-12-02 19:10:04,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 19:10:04,682 INFO L262 TraceCheckSpWp]: Trace formula consists of 1028 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-02 19:10:04,684 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 19:10:04,700 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 1 proven. 5 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2023-12-02 19:10:04,700 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 19:10:04,727 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 1 proven. 5 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2023-12-02 19:10:04,728 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2040197413] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 19:10:04,728 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1988410069] [2023-12-02 19:10:04,729 INFO L159 IcfgInterpreter]: Started Sifa with 40 locations of interest [2023-12-02 19:10:04,730 INFO L166 IcfgInterpreter]: Building call graph [2023-12-02 19:10:04,730 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-12-02 19:10:04,730 INFO L176 IcfgInterpreter]: Starting interpretation [2023-12-02 19:10:04,730 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-12-02 19:10:28,625 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 129 for LOIs [2023-12-02 19:10:28,654 INFO L197 IcfgInterpreter]: Interpreting procedure #Ultimate.C_memset with input of size 377 for LOIs [2023-12-02 19:10:33,148 INFO L180 IcfgInterpreter]: Interpretation finished [2023-12-02 19:10:55,769 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [1988410069] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 19:10:55,769 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2023-12-02 19:10:55,770 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [33] imperfect sequences [5, 5, 5] total 40 [2023-12-02 19:10:55,770 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2134780786] [2023-12-02 19:10:55,770 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 19:10:55,770 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2023-12-02 19:10:55,770 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 19:10:55,771 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2023-12-02 19:10:55,771 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=141, Invalid=1418, Unknown=1, NotChecked=0, Total=1560 [2023-12-02 19:10:55,772 INFO L87 Difference]: Start difference. First operand 703 states and 929 transitions. Second operand has 34 states, 29 states have (on average 1.3793103448275863) internal successors, (40), 31 states have internal predecessors, (40), 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 19:11:02,706 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 19:11:22,695 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 19:11:22,696 INFO L93 Difference]: Finished difference Result 770 states and 1026 transitions. [2023-12-02 19:11:22,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2023-12-02 19:11:22,696 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 29 states have (on average 1.3793103448275863) internal successors, (40), 31 states have internal predecessors, (40), 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 19:11:22,696 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 19:11:22,699 INFO L225 Difference]: With dead ends: 770 [2023-12-02 19:11:22,699 INFO L226 Difference]: Without dead ends: 768 [2023-12-02 19:11:22,700 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 233 GetRequests, 178 SyntacticMatches, 13 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 752 ImplicationChecksByTransitivity, 23.8s TimeCoverageRelationStatistics Valid=163, Invalid=1728, Unknown=1, NotChecked=0, Total=1892 [2023-12-02 19:11:22,700 INFO L413 NwaCegarLoop]: 545 mSDtfsCounter, 152 mSDsluCounter, 11200 mSDsCounter, 0 mSdLazyCounter, 5914 mSolverCounterSat, 5 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 24.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 153 SdHoareTripleChecker+Valid, 11745 SdHoareTripleChecker+Invalid, 5921 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 5914 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 25.5s IncrementalHoareTripleChecker+Time [2023-12-02 19:11:22,700 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [153 Valid, 11745 Invalid, 5921 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [5 Valid, 5914 Invalid, 2 Unknown, 0 Unchecked, 25.5s Time] [2023-12-02 19:11:22,702 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 768 states. [2023-12-02 19:11:22,764 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 768 to 712. [2023-12-02 19:11:22,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 712 states, 575 states have (on average 1.5060869565217392) internal successors, (866), 664 states have internal predecessors, (866), 44 states have call successors, (44), 14 states have call predecessors, (44), 13 states have return successors, (33), 33 states have call predecessors, (33), 33 states have call successors, (33) [2023-12-02 19:11:22,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 712 states to 712 states and 943 transitions. [2023-12-02 19:11:22,766 INFO L78 Accepts]: Start accepts. Automaton has 712 states and 943 transitions. Word has length 75 [2023-12-02 19:11:22,766 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 19:11:22,766 INFO L495 AbstractCegarLoop]: Abstraction has 712 states and 943 transitions. [2023-12-02 19:11:22,766 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 29 states have (on average 1.3793103448275863) internal successors, (40), 31 states have internal predecessors, (40), 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 19:11:22,766 INFO L276 IsEmpty]: Start isEmpty. Operand 712 states and 943 transitions. [2023-12-02 19:11:22,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2023-12-02 19:11:22,767 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 19:11:22,767 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, 1, 1] [2023-12-02 19:11:22,774 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c9048b6-1a30-45db-88ab-2dcf405db505/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Ended with exit code 0 [2023-12-02 19:11:22,967 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c9048b6-1a30-45db-88ab-2dcf405db505/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2023-12-02 19:11:22,967 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [xatoi_positiveErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, xatoi_positiveErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 94 more)] === [2023-12-02 19:11:22,967 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 19:11:22,968 INFO L85 PathProgramCache]: Analyzing trace with hash 1598722816, now seen corresponding path program 1 times [2023-12-02 19:11:22,968 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 19:11:22,968 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [79367716] [2023-12-02 19:11:22,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:11:22,968 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 19:11:23,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 19:11:23,161 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 19:11:23,161 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 19:11:23,161 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [79367716] [2023-12-02 19:11:23,161 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [79367716] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 19:11:23,161 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [688720998] [2023-12-02 19:11:23,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:11:23,161 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 19:11:23,161 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c9048b6-1a30-45db-88ab-2dcf405db505/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 19:11:23,162 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c9048b6-1a30-45db-88ab-2dcf405db505/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 19:11:23,163 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c9048b6-1a30-45db-88ab-2dcf405db505/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2023-12-02 19:11:23,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 19:11:23,704 INFO L262 TraceCheckSpWp]: Trace formula consists of 1077 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-02 19:11:23,705 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 19:11:23,728 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 19:11:23,728 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 19:11:23,760 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 19:11:23,760 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [688720998] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 19:11:23,760 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1553516313] [2023-12-02 19:11:23,762 INFO L159 IcfgInterpreter]: Started Sifa with 38 locations of interest [2023-12-02 19:11:23,762 INFO L166 IcfgInterpreter]: Building call graph [2023-12-02 19:11:23,763 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-12-02 19:11:23,763 INFO L176 IcfgInterpreter]: Starting interpretation [2023-12-02 19:11:23,763 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-12-02 19:12:04,076 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 129 for LOIs [2023-12-02 19:12:04,105 INFO L197 IcfgInterpreter]: Interpreting procedure #Ultimate.C_memset with input of size 297 for LOIs [2023-12-02 19:12:06,967 INFO L180 IcfgInterpreter]: Interpretation finished [2023-12-02 19:12:32,826 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [1553516313] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 19:12:32,826 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2023-12-02 19:12:32,826 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [29] imperfect sequences [4, 5, 5] total 38 [2023-12-02 19:12:32,826 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [172494255] [2023-12-02 19:12:32,826 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 19:12:32,827 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2023-12-02 19:12:32,827 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 19:12:32,827 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2023-12-02 19:12:32,828 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=128, Invalid=1275, Unknown=3, NotChecked=0, Total=1406 [2023-12-02 19:12:32,828 INFO L87 Difference]: Start difference. First operand 712 states and 943 transitions. Second operand has 30 states, 25 states have (on average 1.52) internal successors, (38), 27 states have internal predecessors, (38), 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 19:12:37,452 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 19:12:39,858 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 19:12:56,051 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 19:12:56,051 INFO L93 Difference]: Finished difference Result 867 states and 1157 transitions. [2023-12-02 19:12:56,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2023-12-02 19:12:56,051 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 25 states have (on average 1.52) internal successors, (38), 27 states have internal predecessors, (38), 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 19:12:56,052 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 19:12:56,055 INFO L225 Difference]: With dead ends: 867 [2023-12-02 19:12:56,055 INFO L226 Difference]: Without dead ends: 862 [2023-12-02 19:12:56,056 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 232 GetRequests, 177 SyntacticMatches, 15 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 662 ImplicationChecksByTransitivity, 26.6s TimeCoverageRelationStatistics Valid=150, Invalid=1569, Unknown=3, NotChecked=0, Total=1722 [2023-12-02 19:12:56,056 INFO L413 NwaCegarLoop]: 513 mSDtfsCounter, 198 mSDsluCounter, 5449 mSDsCounter, 0 mSdLazyCounter, 3798 mSolverCounterSat, 30 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 21.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 200 SdHoareTripleChecker+Valid, 5962 SdHoareTripleChecker+Invalid, 3836 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 3798 IncrementalHoareTripleChecker+Invalid, 8 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 22.3s IncrementalHoareTripleChecker+Time [2023-12-02 19:12:56,057 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [200 Valid, 5962 Invalid, 3836 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [30 Valid, 3798 Invalid, 8 Unknown, 0 Unchecked, 22.3s Time] [2023-12-02 19:12:56,058 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 862 states. [2023-12-02 19:12:56,127 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 862 to 740. [2023-12-02 19:12:56,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 740 states, 603 states have (on average 1.5041459369817578) internal successors, (907), 692 states have internal predecessors, (907), 44 states have call successors, (44), 14 states have call predecessors, (44), 13 states have return successors, (33), 33 states have call predecessors, (33), 33 states have call successors, (33) [2023-12-02 19:12:56,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 740 states to 740 states and 984 transitions. [2023-12-02 19:12:56,129 INFO L78 Accepts]: Start accepts. Automaton has 740 states and 984 transitions. Word has length 75 [2023-12-02 19:12:56,129 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 19:12:56,129 INFO L495 AbstractCegarLoop]: Abstraction has 740 states and 984 transitions. [2023-12-02 19:12:56,129 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 25 states have (on average 1.52) internal successors, (38), 27 states have internal predecessors, (38), 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 19:12:56,129 INFO L276 IsEmpty]: Start isEmpty. Operand 740 states and 984 transitions. [2023-12-02 19:12:56,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2023-12-02 19:12:56,130 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 19:12:56,130 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 19:12:56,139 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c9048b6-1a30-45db-88ab-2dcf405db505/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Ended with exit code 0 [2023-12-02 19:12:56,330 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c9048b6-1a30-45db-88ab-2dcf405db505/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2023-12-02 19:12:56,330 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [xatoi_positiveErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, xatoi_positiveErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 94 more)] === [2023-12-02 19:12:56,331 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 19:12:56,331 INFO L85 PathProgramCache]: Analyzing trace with hash -530499513, now seen corresponding path program 1 times [2023-12-02 19:12:56,331 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 19:12:56,331 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1277264354] [2023-12-02 19:12:56,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:12:56,331 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 19:12:56,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 19:12:56,506 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 19:12:56,506 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 19:12:56,506 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1277264354] [2023-12-02 19:12:56,506 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1277264354] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 19:12:56,506 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [552610788] [2023-12-02 19:12:56,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:12:56,507 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 19:12:56,507 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c9048b6-1a30-45db-88ab-2dcf405db505/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 19:12:56,507 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c9048b6-1a30-45db-88ab-2dcf405db505/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 19:12:56,508 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c9048b6-1a30-45db-88ab-2dcf405db505/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2023-12-02 19:12:57,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 19:12:57,005 INFO L262 TraceCheckSpWp]: Trace formula consists of 1057 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-02 19:12:57,007 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 19:12:57,021 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 19:12:57,021 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 19:12:57,049 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 19:12:57,049 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [552610788] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 19:12:57,049 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [368042988] [2023-12-02 19:12:57,051 INFO L159 IcfgInterpreter]: Started Sifa with 36 locations of interest [2023-12-02 19:12:57,051 INFO L166 IcfgInterpreter]: Building call graph [2023-12-02 19:12:57,052 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-12-02 19:12:57,052 INFO L176 IcfgInterpreter]: Starting interpretation [2023-12-02 19:12:57,052 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-12-02 19:13:37,993 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 129 for LOIs [2023-12-02 19:13:38,022 INFO L197 IcfgInterpreter]: Interpreting procedure #Ultimate.C_memset with input of size 297 for LOIs [2023-12-02 19:13:41,263 INFO L180 IcfgInterpreter]: Interpretation finished [2023-12-02 19:14:04,672 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '51948#(and (= 9 |ULTIMATE.start___main_~delim~0#1|) (<= 2147483648 |ULTIMATE.start_getopt32_#t~nondet171#1|) (exists ((|v_ULTIMATE.start_getopt32_#t~mem169#1_40| Int)) (not (= (mod |v_ULTIMATE.start_getopt32_#t~mem169#1_40| 256) 0))) (= |ULTIMATE.start___main_~cut_lists~0#1.offset| 0) (= |ULTIMATE.start_getopt32_~p~3#1.offset| 0) (exists ((|v_#memory_$Pointer$.offset_787| (Array Int (Array Int Int)))) (= |#memory_$Pointer$.offset| (store |v_#memory_$Pointer$.offset_787| |ULTIMATE.start_getopt32_~on_off~0#1.base| (store (select |v_#memory_$Pointer$.offset_787| |ULTIMATE.start_getopt32_~on_off~0#1.base|) |ULTIMATE.start_getopt32_~on_off~0#1.offset| (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_getopt32_~on_off~0#1.base|) |ULTIMATE.start_getopt32_~on_off~0#1.offset|))))) (exists ((|v_#memory_int_1054| (Array Int (Array Int Int)))) (= |#memory_int| (store |v_#memory_int_1054| |ULTIMATE.start_getopt32_~on_off~0#1.base| (store (select |v_#memory_int_1054| |ULTIMATE.start_getopt32_~on_off~0#1.base|) |ULTIMATE.start_getopt32_~on_off~0#1.offset| (select (select |v_#memory_int_1054| |ULTIMATE.start_getopt32_~s~1#1.base|) |ULTIMATE.start_getopt32_~s~1#1.offset|))))) (<= |ULTIMATE.start_getopt32_~c~0#1| 31) (= 0 (+ |ULTIMATE.start_getopt32_~max_arg~0#1| 1)) (= |ULTIMATE.start___main_~nlists~0#1| 0) (= |ULTIMATE.start___main_~cut_lists~0#1.base| 0) (= |ULTIMATE.start___main_~#sopt~0#1.offset| 0) (= 7 ~opt_complementary~0.base) (= |ULTIMATE.start_getopt32_~spec_flgs~0#1| 0) (not (= |ULTIMATE.start_getopt32_~c~0#1| 0)) (= |ULTIMATE.start_getopt32_~flags~0#1| 0) (= ~opt_complementary~0.offset 0) (= |ULTIMATE.start_getopt32_#varArgs#1.offset| 0) (= |ULTIMATE.start___main_#t~varargs112#1.offset| 0) (<= 0 |ULTIMATE.start_getopt32_~c~0#1|) (= 0 |ULTIMATE.start___main_~#ltok~0#1.offset|) (= |ULTIMATE.start_getopt32_~min_arg~0#1| 0) (<= 0 |ULTIMATE.start_getopt32_~on_off~0#1.offset|) (exists ((|v_#memory_$Pointer$.base_789| (Array Int (Array Int Int)))) (= (store |v_#memory_$Pointer$.base_789| |ULTIMATE.start_getopt32_~on_off~0#1.base| (store (select |v_#memory_$Pointer$.base_789| |ULTIMATE.start_getopt32_~on_off~0#1.base|) |ULTIMATE.start_getopt32_~on_off~0#1.offset| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_getopt32_~on_off~0#1.base|) |ULTIMATE.start_getopt32_~on_off~0#1.offset|))) |#memory_$Pointer$.base|)) (= |ULTIMATE.start_getopt32_~#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 19:14:04,672 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2023-12-02 19:14:04,672 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-02 19:14:04,672 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 9 [2023-12-02 19:14:04,672 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1268873210] [2023-12-02 19:14:04,672 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-02 19:14:04,673 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-02 19:14:04,673 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 19:14:04,673 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-02 19:14:04,674 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=126, Invalid=1061, Unknown=3, NotChecked=0, Total=1190 [2023-12-02 19:14:04,674 INFO L87 Difference]: Start difference. First operand 740 states and 984 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 19:14:05,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 19:14:05,314 INFO L93 Difference]: Finished difference Result 1452 states and 1943 transitions. [2023-12-02 19:14:05,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-02 19:14:05,314 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 19:14:05,314 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 19:14:05,317 INFO L225 Difference]: With dead ends: 1452 [2023-12-02 19:14:05,317 INFO L226 Difference]: Without dead ends: 752 [2023-12-02 19:14:05,319 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 228 GetRequests, 179 SyntacticMatches, 16 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 603 ImplicationChecksByTransitivity, 23.4s TimeCoverageRelationStatistics Valid=126, Invalid=1061, Unknown=3, NotChecked=0, Total=1190 [2023-12-02 19:14:05,319 INFO L413 NwaCegarLoop]: 586 mSDtfsCounter, 4 mSDsluCounter, 2340 mSDsCounter, 0 mSdLazyCounter, 487 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 2926 SdHoareTripleChecker+Invalid, 489 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 487 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-02 19:14:05,319 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 2926 Invalid, 489 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 487 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-02 19:14:05,320 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 752 states. [2023-12-02 19:14:05,428 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 752 to 752. [2023-12-02 19:14:05,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 752 states, 615 states have (on average 1.494308943089431) internal successors, (919), 704 states have internal predecessors, (919), 44 states have call successors, (44), 14 states have call predecessors, (44), 13 states have return successors, (33), 33 states have call predecessors, (33), 33 states have call successors, (33) [2023-12-02 19:14:05,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 752 states to 752 states and 996 transitions. [2023-12-02 19:14:05,430 INFO L78 Accepts]: Start accepts. Automaton has 752 states and 996 transitions. Word has length 75 [2023-12-02 19:14:05,430 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 19:14:05,431 INFO L495 AbstractCegarLoop]: Abstraction has 752 states and 996 transitions. [2023-12-02 19:14:05,431 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 19:14:05,431 INFO L276 IsEmpty]: Start isEmpty. Operand 752 states and 996 transitions. [2023-12-02 19:14:05,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2023-12-02 19:14:05,432 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 19:14:05,432 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 19:14:05,439 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c9048b6-1a30-45db-88ab-2dcf405db505/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Ended with exit code 0 [2023-12-02 19:14:05,632 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27,23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c9048b6-1a30-45db-88ab-2dcf405db505/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 19:14:05,632 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [xatoi_positiveErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, xatoi_positiveErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 94 more)] === [2023-12-02 19:14:05,633 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 19:14:05,633 INFO L85 PathProgramCache]: Analyzing trace with hash -1161231353, now seen corresponding path program 2 times [2023-12-02 19:14:05,633 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 19:14:05,633 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [531431760] [2023-12-02 19:14:05,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:14:05,633 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 19:14:05,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 19:14:05,979 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 19:14:05,979 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 19:14:05,979 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [531431760] [2023-12-02 19:14:05,980 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [531431760] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 19:14:05,980 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [64002566] [2023-12-02 19:14:05,980 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-12-02 19:14:05,980 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 19:14:05,980 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c9048b6-1a30-45db-88ab-2dcf405db505/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 19:14:05,981 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c9048b6-1a30-45db-88ab-2dcf405db505/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 19:14:05,982 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c9048b6-1a30-45db-88ab-2dcf405db505/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2023-12-02 19:14:07,321 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2023-12-02 19:14:07,321 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-02 19:14:07,326 INFO L262 TraceCheckSpWp]: Trace formula consists of 848 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-02 19:14:07,328 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 19:14:07,353 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 19:14:07,353 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 19:14:07,413 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 19:14:07,414 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [64002566] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 19:14:07,414 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [142911469] [2023-12-02 19:14:07,415 INFO L159 IcfgInterpreter]: Started Sifa with 36 locations of interest [2023-12-02 19:14:07,415 INFO L166 IcfgInterpreter]: Building call graph [2023-12-02 19:14:07,415 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-12-02 19:14:07,415 INFO L176 IcfgInterpreter]: Starting interpretation [2023-12-02 19:14:07,415 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-12-02 19:14:46,933 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 129 for LOIs [2023-12-02 19:14:46,963 INFO L197 IcfgInterpreter]: Interpreting procedure #Ultimate.C_memset with input of size 297 for LOIs [2023-12-02 19:14:50,225 INFO L180 IcfgInterpreter]: Interpretation finished [2023-12-02 19:15:15,805 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '55126#(and (= 9 |ULTIMATE.start___main_~delim~0#1|) (exists ((|v_#memory_$Pointer$.base_831| (Array Int (Array Int Int)))) (= (store |v_#memory_$Pointer$.base_831| |ULTIMATE.start_getopt32_~on_off~0#1.base| (store (select |v_#memory_$Pointer$.base_831| |ULTIMATE.start_getopt32_~on_off~0#1.base|) |ULTIMATE.start_getopt32_~on_off~0#1.offset| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_getopt32_~on_off~0#1.base|) |ULTIMATE.start_getopt32_~on_off~0#1.offset|))) |#memory_$Pointer$.base|)) (exists ((|v_#memory_$Pointer$.offset_829| (Array Int (Array Int Int)))) (= |#memory_$Pointer$.offset| (store |v_#memory_$Pointer$.offset_829| |ULTIMATE.start_getopt32_~on_off~0#1.base| (store (select |v_#memory_$Pointer$.offset_829| |ULTIMATE.start_getopt32_~on_off~0#1.base|) |ULTIMATE.start_getopt32_~on_off~0#1.offset| (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_getopt32_~on_off~0#1.base|) |ULTIMATE.start_getopt32_~on_off~0#1.offset|))))) (<= 2147483648 |ULTIMATE.start_getopt32_#t~nondet171#1|) (= |ULTIMATE.start___main_~cut_lists~0#1.offset| 0) (= |ULTIMATE.start_getopt32_~p~3#1.offset| 0) (<= |ULTIMATE.start_getopt32_~c~0#1| 31) (= 0 (+ |ULTIMATE.start_getopt32_~max_arg~0#1| 1)) (= |ULTIMATE.start___main_~nlists~0#1| 0) (= |ULTIMATE.start___main_~cut_lists~0#1.base| 0) (= |ULTIMATE.start___main_~#sopt~0#1.offset| 0) (exists ((|v_#memory_int_1106| (Array Int (Array Int Int)))) (= |#memory_int| (store |v_#memory_int_1106| |ULTIMATE.start_getopt32_~on_off~0#1.base| (store (select |v_#memory_int_1106| |ULTIMATE.start_getopt32_~on_off~0#1.base|) |ULTIMATE.start_getopt32_~on_off~0#1.offset| (select (select |v_#memory_int_1106| |ULTIMATE.start_getopt32_~s~1#1.base|) |ULTIMATE.start_getopt32_~s~1#1.offset|))))) (= 7 ~opt_complementary~0.base) (= |ULTIMATE.start_getopt32_~spec_flgs~0#1| 0) (not (= |ULTIMATE.start_getopt32_~c~0#1| 0)) (= |ULTIMATE.start_getopt32_~flags~0#1| 0) (= ~opt_complementary~0.offset 0) (= |ULTIMATE.start_getopt32_#varArgs#1.offset| 0) (= |ULTIMATE.start___main_#t~varargs112#1.offset| 0) (<= 0 |ULTIMATE.start_getopt32_~c~0#1|) (= 0 |ULTIMATE.start___main_~#ltok~0#1.offset|) (= |ULTIMATE.start_getopt32_~min_arg~0#1| 0) (<= 0 |ULTIMATE.start_getopt32_~on_off~0#1.offset|) (= |ULTIMATE.start_getopt32_~#complementary~0#1.offset| 0) (= |ULTIMATE.start_getopt32_~argc~0#1| 1) (exists ((|v_ULTIMATE.start_getopt32_#t~mem169#1_45| Int)) (not (= (mod |v_ULTIMATE.start_getopt32_#t~mem169#1_45| 256) 0))) (= |ULTIMATE.start_getopt32_~requires~0#1| 0))' at error location [2023-12-02 19:15:15,805 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2023-12-02 19:15:15,805 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-02 19:15:15,805 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 5, 5] total 15 [2023-12-02 19:15:15,806 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1546158578] [2023-12-02 19:15:15,806 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-02 19:15:15,806 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-12-02 19:15:15,806 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 19:15:15,806 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-12-02 19:15:15,807 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=157, Invalid=1562, Unknown=3, NotChecked=0, Total=1722 [2023-12-02 19:15:15,807 INFO L87 Difference]: Start difference. First operand 752 states and 996 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)