/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Overflow-32bit-Automizer_Default.epf -i ../sv-benchmarks/c/seq-pthread/cs_fib_longer-1.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-05d3305-m [2022-10-16 16:54:46,292 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-16 16:54:46,296 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-16 16:54:46,366 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-16 16:54:46,367 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-16 16:54:46,371 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-16 16:54:46,375 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-16 16:54:46,383 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-16 16:54:46,385 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-16 16:54:46,391 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-16 16:54:46,393 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-16 16:54:46,396 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-16 16:54:46,397 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-16 16:54:46,400 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-16 16:54:46,402 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-16 16:54:46,407 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-16 16:54:46,408 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-16 16:54:46,409 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-16 16:54:46,413 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-16 16:54:46,422 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-16 16:54:46,424 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-16 16:54:46,425 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-16 16:54:46,427 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-16 16:54:46,429 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-16 16:54:46,438 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-16 16:54:46,439 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-16 16:54:46,439 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-16 16:54:46,441 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-16 16:54:46,442 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-16 16:54:46,443 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-16 16:54:46,443 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-16 16:54:46,444 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-16 16:54:46,446 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-16 16:54:46,447 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-16 16:54:46,448 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-16 16:54:46,448 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-16 16:54:46,449 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-16 16:54:46,449 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-16 16:54:46,450 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-16 16:54:46,450 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-16 16:54:46,451 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-16 16:54:46,452 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Overflow-32bit-Automizer_Default.epf [2022-10-16 16:54:46,502 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-16 16:54:46,503 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-16 16:54:46,503 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-16 16:54:46,503 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-16 16:54:46,504 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-16 16:54:46,504 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-16 16:54:46,505 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-16 16:54:46,505 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-16 16:54:46,505 INFO L138 SettingsManager]: * Use SBE=true [2022-10-16 16:54:46,506 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-16 16:54:46,506 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-16 16:54:46,506 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-16 16:54:46,506 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-16 16:54:46,506 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-16 16:54:46,507 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-16 16:54:46,507 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-16 16:54:46,507 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-16 16:54:46,507 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-16 16:54:46,507 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-10-16 16:54:46,508 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-16 16:54:46,508 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-16 16:54:46,508 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-16 16:54:46,508 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-16 16:54:46,509 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-16 16:54:46,509 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-16 16:54:46,509 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-16 16:54:46,509 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 16:54:46,509 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-16 16:54:46,510 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-16 16:54:46,510 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-16 16:54:46,510 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-16 16:54:46,510 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-16 16:54:46,510 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-16 16:54:46,511 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-10-16 16:54:46,890 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-16 16:54:46,914 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-16 16:54:46,917 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-16 16:54:46,919 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-16 16:54:46,919 INFO L275 PluginConnector]: CDTParser initialized [2022-10-16 16:54:46,921 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-pthread/cs_fib_longer-1.i [2022-10-16 16:54:46,997 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f398633a2/86577ff8355146a3b6e7bdf0d518e327/FLAG6a48ef41a [2022-10-16 16:54:47,710 INFO L306 CDTParser]: Found 1 translation units. [2022-10-16 16:54:47,714 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-pthread/cs_fib_longer-1.i [2022-10-16 16:54:47,747 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f398633a2/86577ff8355146a3b6e7bdf0d518e327/FLAG6a48ef41a [2022-10-16 16:54:47,969 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f398633a2/86577ff8355146a3b6e7bdf0d518e327 [2022-10-16 16:54:47,972 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-16 16:54:47,978 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-10-16 16:54:47,980 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-16 16:54:47,980 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-16 16:54:47,984 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-16 16:54:47,985 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 04:54:47" (1/1) ... [2022-10-16 16:54:47,986 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@e1d9d6f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 04:54:47, skipping insertion in model container [2022-10-16 16:54:47,987 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 04:54:47" (1/1) ... [2022-10-16 16:54:47,999 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-16 16:54:48,049 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-16 16:54:48,417 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-pthread/cs_fib_longer-1.i[23609,23622] [2022-10-16 16:54:48,592 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 16:54:48,613 INFO L203 MainTranslator]: Completed pre-run [2022-10-16 16:54:48,646 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-pthread/cs_fib_longer-1.i[23609,23622] [2022-10-16 16:54:48,795 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 16:54:48,924 INFO L208 MainTranslator]: Completed translation [2022-10-16 16:54:48,925 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 04:54:48 WrapperNode [2022-10-16 16:54:48,925 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-16 16:54:48,928 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-16 16:54:48,929 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-16 16:54:48,930 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-16 16:54:48,945 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 04:54:48" (1/1) ... [2022-10-16 16:54:49,001 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 04:54:48" (1/1) ... [2022-10-16 16:54:49,069 INFO L138 Inliner]: procedures = 144, calls = 395, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 750 [2022-10-16 16:54:49,070 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-16 16:54:49,071 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-16 16:54:49,071 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-16 16:54:49,071 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-16 16:54:49,083 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 04:54:48" (1/1) ... [2022-10-16 16:54:49,084 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 04:54:48" (1/1) ... [2022-10-16 16:54:49,095 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 04:54:48" (1/1) ... [2022-10-16 16:54:49,095 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 04:54:48" (1/1) ... [2022-10-16 16:54:49,138 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 04:54:48" (1/1) ... [2022-10-16 16:54:49,145 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 04:54:48" (1/1) ... [2022-10-16 16:54:49,150 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 04:54:48" (1/1) ... [2022-10-16 16:54:49,155 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 04:54:48" (1/1) ... [2022-10-16 16:54:49,165 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-16 16:54:49,166 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-16 16:54:49,166 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-16 16:54:49,167 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-16 16:54:49,168 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 04:54:48" (1/1) ... [2022-10-16 16:54:49,175 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 16:54:49,192 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 16:54:49,210 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-10-16 16:54:49,232 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-10-16 16:54:49,287 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-10-16 16:54:49,287 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-10-16 16:54:49,287 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-10-16 16:54:49,288 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-10-16 16:54:49,288 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-16 16:54:49,288 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-10-16 16:54:49,288 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-10-16 16:54:49,291 INFO L130 BoogieDeclarations]: Found specification of procedure __CS_pthread_create [2022-10-16 16:54:49,291 INFO L138 BoogieDeclarations]: Found implementation of procedure __CS_pthread_create [2022-10-16 16:54:49,291 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-10-16 16:54:49,292 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~$Pointer$ [2022-10-16 16:54:49,292 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~$Pointer$ [2022-10-16 16:54:49,292 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-10-16 16:54:49,292 INFO L130 BoogieDeclarations]: Found specification of procedure __CS_cs [2022-10-16 16:54:49,292 INFO L138 BoogieDeclarations]: Found implementation of procedure __CS_cs [2022-10-16 16:54:49,292 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-16 16:54:49,293 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-16 16:54:49,293 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-16 16:54:49,609 INFO L235 CfgBuilder]: Building ICFG [2022-10-16 16:54:49,616 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-16 16:54:50,024 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##18: assume 0 != ~__CS_ret~0 % 256;main_thread_#res#1.base, main_thread_#res#1.offset := 0, 0;call ULTIMATE.dealloc(main_thread_~#id1~0#1.base, main_thread_~#id1~0#1.offset);havoc main_thread_~#id1~0#1.base, main_thread_~#id1~0#1.offset;call ULTIMATE.dealloc(main_thread_~#id2~0#1.base, main_thread_~#id2~0#1.offset);havoc main_thread_~#id2~0#1.base, main_thread_~#id2~0#1.offset; [2022-10-16 16:54:50,025 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##17: assume !(0 != ~__CS_ret~0 % 256); [2022-10-16 16:54:50,025 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##16: assume 0 != ~__CS_ret~0 % 256;main_thread_#res#1.base, main_thread_#res#1.offset := 0, 0;call ULTIMATE.dealloc(main_thread_~#id1~0#1.base, main_thread_~#id1~0#1.offset);havoc main_thread_~#id1~0#1.base, main_thread_~#id1~0#1.offset;call ULTIMATE.dealloc(main_thread_~#id2~0#1.base, main_thread_~#id2~0#1.offset);havoc main_thread_~#id2~0#1.base, main_thread_~#id2~0#1.offset; [2022-10-16 16:54:50,025 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##19: assume !(0 != ~__CS_ret~0 % 256); [2022-10-16 16:54:50,026 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L734: SUMMARY for call __CS_cs(); srcloc: null [2022-10-16 16:54:50,026 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L734-1: assume 0 != ~__CS_ret~0 % 256;main_thread_#res#1.base, main_thread_#res#1.offset := 0, 0;call ULTIMATE.dealloc(main_thread_~#id1~0#1.base, main_thread_~#id1~0#1.offset);havoc main_thread_~#id1~0#1.base, main_thread_~#id1~0#1.offset;call ULTIMATE.dealloc(main_thread_~#id2~0#1.base, main_thread_~#id2~0#1.offset);havoc main_thread_~#id2~0#1.base, main_thread_~#id2~0#1.offset; [2022-10-16 16:54:50,026 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L734-1: assume !(0 != ~__CS_ret~0 % 256); [2022-10-16 16:54:54,653 INFO L276 CfgBuilder]: Performing block encoding [2022-10-16 16:54:54,664 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-16 16:54:54,665 INFO L300 CfgBuilder]: Removed 4 assume(true) statements. [2022-10-16 16:54:54,668 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 04:54:54 BoogieIcfgContainer [2022-10-16 16:54:54,668 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-16 16:54:54,671 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-16 16:54:54,671 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-16 16:54:54,675 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-16 16:54:54,675 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 04:54:47" (1/3) ... [2022-10-16 16:54:54,676 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@31fd56a1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 04:54:54, skipping insertion in model container [2022-10-16 16:54:54,676 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 04:54:48" (2/3) ... [2022-10-16 16:54:54,676 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@31fd56a1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 04:54:54, skipping insertion in model container [2022-10-16 16:54:54,676 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 04:54:54" (3/3) ... [2022-10-16 16:54:54,678 INFO L112 eAbstractionObserver]: Analyzing ICFG cs_fib_longer-1.i [2022-10-16 16:54:54,699 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-16 16:54:54,699 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 16 error locations. [2022-10-16 16:54:54,766 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-16 16:54:54,776 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=LoopsAndPotentialCycles, 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;@642f11e1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-16 16:54:54,776 INFO L358 AbstractCegarLoop]: Starting to check reachability of 16 error locations. [2022-10-16 16:54:54,782 INFO L276 IsEmpty]: Start isEmpty. Operand has 218 states, 130 states have (on average 1.4076923076923078) internal successors, (183), 146 states have internal predecessors, (183), 67 states have call successors, (67), 4 states have call predecessors, (67), 4 states have return successors, (67), 67 states have call predecessors, (67), 67 states have call successors, (67) [2022-10-16 16:54:54,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-10-16 16:54:54,790 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 16:54:54,790 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-10-16 16:54:54,792 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [##fun~$Pointer$~TO~$Pointer$Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, ##fun~$Pointer$~TO~$Pointer$Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2022-10-16 16:54:54,800 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 16:54:54,800 INFO L85 PathProgramCache]: Analyzing trace with hash -1901912310, now seen corresponding path program 1 times [2022-10-16 16:54:54,811 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 16:54:54,811 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [427658052] [2022-10-16 16:54:54,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 16:54:54,813 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 16:54:55,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 16:54:55,267 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 16:54:55,268 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 16:54:55,268 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [427658052] [2022-10-16 16:54:55,269 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [427658052] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 16:54:55,269 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 16:54:55,270 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 16:54:55,272 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [255192032] [2022-10-16 16:54:55,274 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 16:54:55,279 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 16:54:55,280 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 16:54:55,319 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 16:54:55,320 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 16:54:55,326 INFO L87 Difference]: Start difference. First operand has 218 states, 130 states have (on average 1.4076923076923078) internal successors, (183), 146 states have internal predecessors, (183), 67 states have call successors, (67), 4 states have call predecessors, (67), 4 states have return successors, (67), 67 states have call predecessors, (67), 67 states have call successors, (67) Second operand has 3 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) [2022-10-16 16:54:55,507 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 16:54:55,508 INFO L93 Difference]: Finished difference Result 436 states and 705 transitions. [2022-10-16 16:54:55,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 16:54:55,511 INFO L78 Accepts]: Start accepts. Automaton has has 3 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 [2022-10-16 16:54:55,512 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 16:54:55,524 INFO L225 Difference]: With dead ends: 436 [2022-10-16 16:54:55,524 INFO L226 Difference]: Without dead ends: 115 [2022-10-16 16:54:55,533 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 16:54:55,537 INFO L413 NwaCegarLoop]: 305 mSDtfsCounter, 5 mSDsluCounter, 301 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 606 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 16:54:55,539 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 606 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 16:54:55,563 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2022-10-16 16:54:55,595 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 110. [2022-10-16 16:54:55,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 110 states, 75 states have (on average 1.5466666666666666) internal successors, (116), 87 states have internal predecessors, (116), 19 states have call successors, (19), 4 states have call predecessors, (19), 4 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2022-10-16 16:54:55,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 153 transitions. [2022-10-16 16:54:55,601 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 153 transitions. Word has length 6 [2022-10-16 16:54:55,602 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 16:54:55,602 INFO L495 AbstractCegarLoop]: Abstraction has 110 states and 153 transitions. [2022-10-16 16:54:55,602 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 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) [2022-10-16 16:54:55,603 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 153 transitions. [2022-10-16 16:54:55,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-10-16 16:54:55,603 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 16:54:55,603 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-10-16 16:54:55,604 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-16 16:54:55,604 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [##fun~$Pointer$~TO~$Pointer$Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, ##fun~$Pointer$~TO~$Pointer$Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2022-10-16 16:54:55,605 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 16:54:55,605 INFO L85 PathProgramCache]: Analyzing trace with hash -1901910644, now seen corresponding path program 1 times [2022-10-16 16:54:55,605 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 16:54:55,606 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1936543976] [2022-10-16 16:54:55,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 16:54:55,606 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 16:54:55,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 16:54:55,811 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 16:54:55,811 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 16:54:55,812 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1936543976] [2022-10-16 16:54:55,812 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1936543976] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 16:54:55,812 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 16:54:55,812 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 16:54:55,813 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [290723028] [2022-10-16 16:54:55,813 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 16:54:55,814 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 16:54:55,814 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 16:54:55,815 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 16:54:55,815 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 16:54:55,816 INFO L87 Difference]: Start difference. First operand 110 states and 153 transitions. Second operand has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 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) [2022-10-16 16:54:55,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 16:54:55,885 INFO L93 Difference]: Finished difference Result 115 states and 158 transitions. [2022-10-16 16:54:55,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 16:54:55,886 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 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 [2022-10-16 16:54:55,886 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 16:54:55,888 INFO L225 Difference]: With dead ends: 115 [2022-10-16 16:54:55,888 INFO L226 Difference]: Without dead ends: 113 [2022-10-16 16:54:55,889 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 [2022-10-16 16:54:55,891 INFO L413 NwaCegarLoop]: 148 mSDtfsCounter, 3 mSDsluCounter, 291 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 439 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 16:54:55,891 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 439 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 16:54:55,893 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2022-10-16 16:54:55,904 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 113. [2022-10-16 16:54:55,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 113 states, 78 states have (on average 1.5256410256410255) internal successors, (119), 90 states have internal predecessors, (119), 19 states have call successors, (19), 4 states have call predecessors, (19), 4 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2022-10-16 16:54:55,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 156 transitions. [2022-10-16 16:54:55,907 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 156 transitions. Word has length 6 [2022-10-16 16:54:55,907 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 16:54:55,908 INFO L495 AbstractCegarLoop]: Abstraction has 113 states and 156 transitions. [2022-10-16 16:54:55,908 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 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) [2022-10-16 16:54:55,908 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 156 transitions. [2022-10-16 16:54:55,909 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-10-16 16:54:55,909 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 16:54:55,909 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 16:54:55,910 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-16 16:54:55,910 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [##fun~$Pointer$~TO~$Pointer$Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, ##fun~$Pointer$~TO~$Pointer$Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2022-10-16 16:54:55,910 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 16:54:55,911 INFO L85 PathProgramCache]: Analyzing trace with hash -1766666106, now seen corresponding path program 1 times [2022-10-16 16:54:55,911 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 16:54:55,911 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1899526002] [2022-10-16 16:54:55,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 16:54:55,912 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 16:54:55,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 16:54:56,116 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 16:54:56,117 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 16:54:56,117 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1899526002] [2022-10-16 16:54:56,117 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1899526002] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 16:54:56,118 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [259621485] [2022-10-16 16:54:56,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 16:54:56,118 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 16:54:56,118 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 16:54:56,121 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 16:54:56,144 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-10-16 16:54:56,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 16:54:56,327 INFO L263 TraceCheckSpWp]: Trace formula consists of 309 conjuncts, 4 conjunts are in the unsatisfiable core [2022-10-16 16:54:56,334 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 16:54:56,403 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 16:54:56,403 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 16:54:56,453 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 16:54:56,454 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [259621485] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 16:54:56,454 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 16:54:56,454 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 9 [2022-10-16 16:54:56,454 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1241549087] [2022-10-16 16:54:56,455 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 16:54:56,455 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-10-16 16:54:56,456 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 16:54:56,456 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-10-16 16:54:56,456 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2022-10-16 16:54:56,457 INFO L87 Difference]: Start difference. First operand 113 states and 156 transitions. Second operand has 9 states, 9 states have (on average 2.3333333333333335) internal successors, (21), 9 states have internal predecessors, (21), 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) [2022-10-16 16:54:56,595 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 16:54:56,595 INFO L93 Difference]: Finished difference Result 230 states and 319 transitions. [2022-10-16 16:54:56,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-10-16 16:54:56,596 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 2.3333333333333335) internal successors, (21), 9 states have internal predecessors, (21), 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 10 [2022-10-16 16:54:56,597 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 16:54:56,599 INFO L225 Difference]: With dead ends: 230 [2022-10-16 16:54:56,599 INFO L226 Difference]: Without dead ends: 119 [2022-10-16 16:54:56,600 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 15 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2022-10-16 16:54:56,602 INFO L413 NwaCegarLoop]: 147 mSDtfsCounter, 16 mSDsluCounter, 579 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 726 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 16:54:56,603 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 726 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 16:54:56,604 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2022-10-16 16:54:56,617 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 118. [2022-10-16 16:54:56,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 118 states, 83 states have (on average 1.5060240963855422) internal successors, (125), 95 states have internal predecessors, (125), 19 states have call successors, (19), 4 states have call predecessors, (19), 4 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2022-10-16 16:54:56,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 118 states and 162 transitions. [2022-10-16 16:54:56,621 INFO L78 Accepts]: Start accepts. Automaton has 118 states and 162 transitions. Word has length 10 [2022-10-16 16:54:56,621 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 16:54:56,622 INFO L495 AbstractCegarLoop]: Abstraction has 118 states and 162 transitions. [2022-10-16 16:54:56,622 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 2.3333333333333335) internal successors, (21), 9 states have internal predecessors, (21), 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) [2022-10-16 16:54:56,622 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states and 162 transitions. [2022-10-16 16:54:56,623 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-10-16 16:54:56,623 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 16:54:56,623 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1] [2022-10-16 16:54:56,667 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-10-16 16:54:56,839 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 16:54:56,840 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [##fun~$Pointer$~TO~$Pointer$Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, ##fun~$Pointer$~TO~$Pointer$Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2022-10-16 16:54:56,841 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 16:54:56,843 INFO L85 PathProgramCache]: Analyzing trace with hash 1067977458, now seen corresponding path program 1 times [2022-10-16 16:54:56,843 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 16:54:56,843 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1143319852] [2022-10-16 16:54:56,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 16:54:56,844 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 16:54:56,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 16:54:57,106 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 16:54:57,107 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 16:54:57,108 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1143319852] [2022-10-16 16:54:57,108 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1143319852] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 16:54:57,108 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1435123244] [2022-10-16 16:54:57,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 16:54:57,109 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 16:54:57,109 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 16:54:57,111 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 16:54:57,134 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-10-16 16:54:57,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 16:54:57,334 INFO L263 TraceCheckSpWp]: Trace formula consists of 336 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-16 16:54:57,337 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 16:54:57,390 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 16:54:57,390 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 16:54:57,391 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1435123244] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 16:54:57,391 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 16:54:57,391 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2022-10-16 16:54:57,391 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1583493609] [2022-10-16 16:54:57,392 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 16:54:57,392 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 16:54:57,394 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 16:54:57,394 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 16:54:57,394 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-10-16 16:54:57,395 INFO L87 Difference]: Start difference. First operand 118 states and 162 transitions. Second operand has 6 states, 5 states have (on average 2.2) internal successors, (11), 6 states have internal predecessors, (11), 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) [2022-10-16 16:54:57,494 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 16:54:57,494 INFO L93 Difference]: Finished difference Result 132 states and 183 transitions. [2022-10-16 16:54:57,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-16 16:54:57,496 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.2) internal successors, (11), 6 states have internal predecessors, (11), 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 11 [2022-10-16 16:54:57,496 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 16:54:57,498 INFO L225 Difference]: With dead ends: 132 [2022-10-16 16:54:57,498 INFO L226 Difference]: Without dead ends: 131 [2022-10-16 16:54:57,499 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-10-16 16:54:57,500 INFO L413 NwaCegarLoop]: 163 mSDtfsCounter, 27 mSDsluCounter, 606 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 769 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 16:54:57,501 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 769 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 16:54:57,502 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131 states. [2022-10-16 16:54:57,512 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131 to 117. [2022-10-16 16:54:57,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 117 states, 83 states have (on average 1.4819277108433735) internal successors, (123), 94 states have internal predecessors, (123), 19 states have call successors, (19), 4 states have call predecessors, (19), 4 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2022-10-16 16:54:57,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 117 states and 160 transitions. [2022-10-16 16:54:57,515 INFO L78 Accepts]: Start accepts. Automaton has 117 states and 160 transitions. Word has length 11 [2022-10-16 16:54:57,515 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 16:54:57,515 INFO L495 AbstractCegarLoop]: Abstraction has 117 states and 160 transitions. [2022-10-16 16:54:57,515 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.2) internal successors, (11), 6 states have internal predecessors, (11), 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) [2022-10-16 16:54:57,516 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states and 160 transitions. [2022-10-16 16:54:57,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-10-16 16:54:57,517 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 16:54:57,517 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1] [2022-10-16 16:54:57,554 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-10-16 16:54:57,730 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3 [2022-10-16 16:54:57,731 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [##fun~$Pointer$~TO~$Pointer$Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, ##fun~$Pointer$~TO~$Pointer$Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2022-10-16 16:54:57,732 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 16:54:57,733 INFO L85 PathProgramCache]: Analyzing trace with hash -1001035132, now seen corresponding path program 1 times [2022-10-16 16:54:57,733 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 16:54:57,733 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [172467787] [2022-10-16 16:54:57,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 16:54:57,734 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 16:54:57,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 16:54:57,858 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-10-16 16:54:57,859 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 16:54:57,859 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [172467787] [2022-10-16 16:54:57,859 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [172467787] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 16:54:57,859 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 16:54:57,859 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 16:54:57,860 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [374529615] [2022-10-16 16:54:57,860 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 16:54:57,860 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 16:54:57,860 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 16:54:57,861 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 16:54:57,861 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 16:54:57,861 INFO L87 Difference]: Start difference. First operand 117 states and 160 transitions. Second operand has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 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) [2022-10-16 16:54:57,900 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 16:54:57,900 INFO L93 Difference]: Finished difference Result 117 states and 160 transitions. [2022-10-16 16:54:57,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 16:54:57,901 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 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 14 [2022-10-16 16:54:57,901 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 16:54:57,903 INFO L225 Difference]: With dead ends: 117 [2022-10-16 16:54:57,903 INFO L226 Difference]: Without dead ends: 116 [2022-10-16 16:54:57,903 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 [2022-10-16 16:54:57,905 INFO L413 NwaCegarLoop]: 146 mSDtfsCounter, 3 mSDsluCounter, 288 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 434 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 16:54:57,905 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 434 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 16:54:57,906 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states. [2022-10-16 16:54:57,914 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 116. [2022-10-16 16:54:57,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 116 states, 83 states have (on average 1.4698795180722892) internal successors, (122), 93 states have internal predecessors, (122), 19 states have call successors, (19), 4 states have call predecessors, (19), 4 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2022-10-16 16:54:57,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 116 states and 159 transitions. [2022-10-16 16:54:57,916 INFO L78 Accepts]: Start accepts. Automaton has 116 states and 159 transitions. Word has length 14 [2022-10-16 16:54:57,917 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 16:54:57,917 INFO L495 AbstractCegarLoop]: Abstraction has 116 states and 159 transitions. [2022-10-16 16:54:57,917 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 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) [2022-10-16 16:54:57,917 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 159 transitions. [2022-10-16 16:54:57,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-10-16 16:54:57,918 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 16:54:57,919 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 1, 1, 1, 1, 1, 1] [2022-10-16 16:54:57,919 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-10-16 16:54:57,919 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [##fun~$Pointer$~TO~$Pointer$Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, ##fun~$Pointer$~TO~$Pointer$Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2022-10-16 16:54:57,919 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 16:54:57,920 INFO L85 PathProgramCache]: Analyzing trace with hash 1867110782, now seen corresponding path program 2 times [2022-10-16 16:54:57,920 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 16:54:57,920 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [666813773] [2022-10-16 16:54:57,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 16:54:57,920 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 16:54:57,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 16:54:58,063 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-10-16 16:54:58,064 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 16:54:58,064 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [666813773] [2022-10-16 16:54:58,064 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [666813773] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 16:54:58,064 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 16:54:58,064 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 16:54:58,065 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1200760501] [2022-10-16 16:54:58,065 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 16:54:58,065 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 16:54:58,065 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 16:54:58,066 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 16:54:58,066 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 16:54:58,066 INFO L87 Difference]: Start difference. First operand 116 states and 159 transitions. Second operand has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 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) [2022-10-16 16:54:58,128 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 16:54:58,128 INFO L93 Difference]: Finished difference Result 230 states and 316 transitions. [2022-10-16 16:54:58,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 16:54:58,129 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 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 18 [2022-10-16 16:54:58,129 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 16:54:58,131 INFO L225 Difference]: With dead ends: 230 [2022-10-16 16:54:58,131 INFO L226 Difference]: Without dead ends: 133 [2022-10-16 16:54:58,132 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 [2022-10-16 16:54:58,133 INFO L413 NwaCegarLoop]: 145 mSDtfsCounter, 3 mSDsluCounter, 286 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 431 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 16:54:58,134 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 431 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 16:54:58,135 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133 states. [2022-10-16 16:54:58,143 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133 to 133. [2022-10-16 16:54:58,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 133 states, 100 states have (on average 1.4) internal successors, (140), 110 states have internal predecessors, (140), 19 states have call successors, (19), 4 states have call predecessors, (19), 4 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2022-10-16 16:54:58,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 133 states and 177 transitions. [2022-10-16 16:54:58,145 INFO L78 Accepts]: Start accepts. Automaton has 133 states and 177 transitions. Word has length 18 [2022-10-16 16:54:58,145 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 16:54:58,145 INFO L495 AbstractCegarLoop]: Abstraction has 133 states and 177 transitions. [2022-10-16 16:54:58,146 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 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) [2022-10-16 16:54:58,146 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 177 transitions. [2022-10-16 16:54:58,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2022-10-16 16:54:58,147 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 16:54:58,147 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 2, 2, 2, 1, 1, 1, 1, 1] [2022-10-16 16:54:58,148 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-10-16 16:54:58,148 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [##fun~$Pointer$~TO~$Pointer$Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, ##fun~$Pointer$~TO~$Pointer$Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2022-10-16 16:54:58,148 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 16:54:58,148 INFO L85 PathProgramCache]: Analyzing trace with hash -1363619712, now seen corresponding path program 1 times [2022-10-16 16:54:58,149 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 16:54:58,149 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1964457809] [2022-10-16 16:54:58,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 16:54:58,149 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 16:54:58,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 16:54:58,327 INFO L134 CoverageAnalysis]: Checked inductivity of 76 backedges. 45 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2022-10-16 16:54:58,328 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 16:54:58,328 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1964457809] [2022-10-16 16:54:58,328 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1964457809] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 16:54:58,328 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 16:54:58,328 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 16:54:58,329 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [695279143] [2022-10-16 16:54:58,329 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 16:54:58,329 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 16:54:58,329 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 16:54:58,330 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 16:54:58,330 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 16:54:58,330 INFO L87 Difference]: Start difference. First operand 133 states and 177 transitions. Second operand has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 4 states have internal predecessors, (19), 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) [2022-10-16 16:54:58,382 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 16:54:58,382 INFO L93 Difference]: Finished difference Result 133 states and 177 transitions. [2022-10-16 16:54:58,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 16:54:58,383 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 4 states have internal predecessors, (19), 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 35 [2022-10-16 16:54:58,383 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 16:54:58,384 INFO L225 Difference]: With dead ends: 133 [2022-10-16 16:54:58,384 INFO L226 Difference]: Without dead ends: 132 [2022-10-16 16:54:58,385 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-16 16:54:58,386 INFO L413 NwaCegarLoop]: 143 mSDtfsCounter, 5 mSDsluCounter, 279 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 422 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 16:54:58,386 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 422 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 16:54:58,387 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132 states. [2022-10-16 16:54:58,395 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132 to 132. [2022-10-16 16:54:58,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 132 states, 100 states have (on average 1.39) internal successors, (139), 109 states have internal predecessors, (139), 19 states have call successors, (19), 4 states have call predecessors, (19), 4 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2022-10-16 16:54:58,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 176 transitions. [2022-10-16 16:54:58,397 INFO L78 Accepts]: Start accepts. Automaton has 132 states and 176 transitions. Word has length 35 [2022-10-16 16:54:58,397 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 16:54:58,397 INFO L495 AbstractCegarLoop]: Abstraction has 132 states and 176 transitions. [2022-10-16 16:54:58,398 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 4 states have internal predecessors, (19), 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) [2022-10-16 16:54:58,401 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 176 transitions. [2022-10-16 16:54:58,402 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2022-10-16 16:54:58,402 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 16:54:58,403 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 2, 2, 2, 2, 1, 1, 1, 1] [2022-10-16 16:54:58,403 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-10-16 16:54:58,403 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [##fun~$Pointer$~TO~$Pointer$Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, ##fun~$Pointer$~TO~$Pointer$Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2022-10-16 16:54:58,404 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 16:54:58,404 INFO L85 PathProgramCache]: Analyzing trace with hash 677462146, now seen corresponding path program 1 times [2022-10-16 16:54:58,404 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 16:54:58,404 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1736650719] [2022-10-16 16:54:58,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 16:54:58,405 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 16:54:58,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 16:54:58,745 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 0 proven. 47 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-10-16 16:54:58,745 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 16:54:58,745 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1736650719] [2022-10-16 16:54:58,745 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1736650719] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 16:54:58,746 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1356389893] [2022-10-16 16:54:58,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 16:54:58,746 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 16:54:58,746 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 16:54:58,750 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 16:54:58,768 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-10-16 16:54:58,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 16:54:58,999 INFO L263 TraceCheckSpWp]: Trace formula consists of 515 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-16 16:54:59,002 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 16:54:59,136 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 47 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-10-16 16:54:59,136 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 16:54:59,136 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1356389893] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 16:54:59,136 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 16:54:59,137 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2022-10-16 16:54:59,137 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1498961274] [2022-10-16 16:54:59,137 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 16:54:59,137 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 16:54:59,138 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 16:54:59,138 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 16:54:59,138 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-10-16 16:54:59,138 INFO L87 Difference]: Start difference. First operand 132 states and 176 transitions. Second operand has 6 states, 5 states have (on average 4.0) internal successors, (20), 6 states have internal predecessors, (20), 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) [2022-10-16 16:54:59,242 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 16:54:59,242 INFO L93 Difference]: Finished difference Result 132 states and 176 transitions. [2022-10-16 16:54:59,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-16 16:54:59,243 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 4.0) internal successors, (20), 6 states have internal predecessors, (20), 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 36 [2022-10-16 16:54:59,244 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 16:54:59,245 INFO L225 Difference]: With dead ends: 132 [2022-10-16 16:54:59,245 INFO L226 Difference]: Without dead ends: 131 [2022-10-16 16:54:59,245 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-10-16 16:54:59,246 INFO L413 NwaCegarLoop]: 146 mSDtfsCounter, 34 mSDsluCounter, 415 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 561 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 16:54:59,246 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 561 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 16:54:59,247 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131 states. [2022-10-16 16:54:59,253 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131 to 115. [2022-10-16 16:54:59,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 115 states, 84 states have (on average 1.4404761904761905) internal successors, (121), 92 states have internal predecessors, (121), 19 states have call successors, (19), 4 states have call predecessors, (19), 4 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2022-10-16 16:54:59,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 158 transitions. [2022-10-16 16:54:59,255 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 158 transitions. Word has length 36 [2022-10-16 16:54:59,255 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 16:54:59,256 INFO L495 AbstractCegarLoop]: Abstraction has 115 states and 158 transitions. [2022-10-16 16:54:59,256 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 4.0) internal successors, (20), 6 states have internal predecessors, (20), 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) [2022-10-16 16:54:59,256 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 158 transitions. [2022-10-16 16:54:59,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-10-16 16:54:59,259 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 16:54:59,259 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 16:54:59,295 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-10-16 16:54:59,472 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 16:54:59,473 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ##fun~$Pointer$~TO~$Pointer$Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [##fun~$Pointer$~TO~$Pointer$Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, ##fun~$Pointer$~TO~$Pointer$Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2022-10-16 16:54:59,474 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 16:54:59,474 INFO L85 PathProgramCache]: Analyzing trace with hash -1437013045, now seen corresponding path program 1 times [2022-10-16 16:54:59,474 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 16:54:59,475 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [878819320] [2022-10-16 16:54:59,475 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 16:54:59,475 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms