/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/taipan/svcomp-Reach-32bit-Taipan_Default.epf -tc ../../../trunk/examples/toolchains/AutomizerC.xml --sifa.abstract.domain IntervalDomain -i ../sv-benchmarks/c/seq-pthread/cs_fib_longer-1.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-f954360 [2023-04-01 00:43:51,013 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-04-01 00:43:51,014 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-04-01 00:43:51,047 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-04-01 00:43:51,047 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-04-01 00:43:51,049 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-04-01 00:43:51,052 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-04-01 00:43:51,053 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-04-01 00:43:51,054 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-04-01 00:43:51,058 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-04-01 00:43:51,059 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-04-01 00:43:51,060 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-04-01 00:43:51,061 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-04-01 00:43:51,062 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-04-01 00:43:51,063 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-04-01 00:43:51,066 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-04-01 00:43:51,067 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-04-01 00:43:51,067 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-04-01 00:43:51,068 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-04-01 00:43:51,069 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-04-01 00:43:51,070 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-04-01 00:43:51,071 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-04-01 00:43:51,072 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-04-01 00:43:51,073 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-04-01 00:43:51,079 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2023-04-01 00:43:51,081 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-04-01 00:43:51,081 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-04-01 00:43:51,082 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-04-01 00:43:51,082 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-04-01 00:43:51,083 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-04-01 00:43:51,083 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-04-01 00:43:51,083 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-04-01 00:43:51,083 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-04-01 00:43:51,083 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-04-01 00:43:51,084 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-04-01 00:43:51,084 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-04-01 00:43:51,088 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-32bit-Taipan_Default.epf [2023-04-01 00:43:51,115 INFO L113 SettingsManager]: Loading preferences was successful [2023-04-01 00:43:51,115 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-04-01 00:43:51,115 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-04-01 00:43:51,115 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-04-01 00:43:51,116 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-04-01 00:43:51,116 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-04-01 00:43:51,116 INFO L138 SettingsManager]: * User list type=DISABLED [2023-04-01 00:43:51,116 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-04-01 00:43:51,117 INFO L138 SettingsManager]: * Explicit value domain=true [2023-04-01 00:43:51,117 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-04-01 00:43:51,117 INFO L138 SettingsManager]: * Octagon Domain=false [2023-04-01 00:43:51,117 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2023-04-01 00:43:51,117 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-04-01 00:43:51,117 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-04-01 00:43:51,118 INFO L138 SettingsManager]: * Interval Domain=false [2023-04-01 00:43:51,118 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-04-01 00:43:51,118 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-04-01 00:43:51,118 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2023-04-01 00:43:51,118 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-04-01 00:43:51,119 INFO L138 SettingsManager]: * sizeof long=4 [2023-04-01 00:43:51,119 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-04-01 00:43:51,119 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-04-01 00:43:51,119 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-04-01 00:43:51,119 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-04-01 00:43:51,119 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-04-01 00:43:51,119 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-04-01 00:43:51,119 INFO L138 SettingsManager]: * sizeof long double=12 [2023-04-01 00:43:51,120 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-04-01 00:43:51,120 INFO L138 SettingsManager]: * Use constant arrays=true [2023-04-01 00:43:51,120 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-04-01 00:43:51,120 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-04-01 00:43:51,120 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-04-01 00:43:51,120 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-01 00:43:51,120 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-04-01 00:43:51,120 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2023-04-01 00:43:51,120 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-04-01 00:43:51,121 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-04-01 00:43:51,121 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-04-01 00:43:51,121 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-04-01 00:43:51,121 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-04-01 00:43:51,121 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-04-01 00:43:51,121 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> IntervalDomain [2023-04-01 00:43:51,296 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-04-01 00:43:51,310 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-04-01 00:43:51,311 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-04-01 00:43:51,312 INFO L271 PluginConnector]: Initializing CDTParser... [2023-04-01 00:43:51,313 INFO L275 PluginConnector]: CDTParser initialized [2023-04-01 00:43:51,313 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-pthread/cs_fib_longer-1.i [2023-04-01 00:43:52,200 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-04-01 00:43:52,478 INFO L351 CDTParser]: Found 1 translation units. [2023-04-01 00:43:52,479 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-pthread/cs_fib_longer-1.i [2023-04-01 00:43:52,491 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d77319884/684e29fe9b0e4cc29cbfcd8fdb41aeff/FLAGc728aaca9 [2023-04-01 00:43:52,504 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d77319884/684e29fe9b0e4cc29cbfcd8fdb41aeff [2023-04-01 00:43:52,507 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-04-01 00:43:52,508 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2023-04-01 00:43:52,512 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-04-01 00:43:52,512 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-04-01 00:43:52,515 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-04-01 00:43:52,515 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.04 12:43:52" (1/1) ... [2023-04-01 00:43:52,516 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@289ae7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 12:43:52, skipping insertion in model container [2023-04-01 00:43:52,517 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.04 12:43:52" (1/1) ... [2023-04-01 00:43:52,522 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-04-01 00:43:52,566 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-04-01 00:43:52,749 WARN L247 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] [2023-04-01 00:43:52,879 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-01 00:43:52,891 INFO L203 MainTranslator]: Completed pre-run [2023-04-01 00:43:52,921 WARN L247 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] [2023-04-01 00:43:52,964 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-01 00:43:52,985 INFO L208 MainTranslator]: Completed translation [2023-04-01 00:43:52,985 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 12:43:52 WrapperNode [2023-04-01 00:43:52,985 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-04-01 00:43:52,986 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-04-01 00:43:52,986 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-04-01 00:43:52,986 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-04-01 00:43:52,999 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 12:43:52" (1/1) ... [2023-04-01 00:43:52,999 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 12:43:52" (1/1) ... [2023-04-01 00:43:53,018 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 12:43:52" (1/1) ... [2023-04-01 00:43:53,018 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 12:43:52" (1/1) ... [2023-04-01 00:43:53,071 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 12:43:52" (1/1) ... [2023-04-01 00:43:53,076 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 12:43:52" (1/1) ... [2023-04-01 00:43:53,081 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 12:43:52" (1/1) ... [2023-04-01 00:43:53,085 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 12:43:52" (1/1) ... [2023-04-01 00:43:53,092 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-04-01 00:43:53,093 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-04-01 00:43:53,093 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-04-01 00:43:53,093 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-04-01 00:43:53,094 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 12:43:52" (1/1) ... [2023-04-01 00:43:53,100 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-01 00:43:53,109 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-01 00:43:53,124 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) [2023-04-01 00:43:53,137 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 [2023-04-01 00:43:53,158 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2023-04-01 00:43:53,158 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-04-01 00:43:53,158 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~$Pointer$ [2023-04-01 00:43:53,158 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-04-01 00:43:53,158 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-04-01 00:43:53,159 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2023-04-01 00:43:53,159 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2023-04-01 00:43:53,159 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2023-04-01 00:43:53,159 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2023-04-01 00:43:53,159 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2023-04-01 00:43:53,159 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-04-01 00:43:53,159 INFO L138 BoogieDeclarations]: Found implementation of procedure __CS_cs [2023-04-01 00:43:53,159 INFO L138 BoogieDeclarations]: Found implementation of procedure __CS_pthread_mutex_init [2023-04-01 00:43:53,159 INFO L138 BoogieDeclarations]: Found implementation of procedure __CS_pthread_mutex_destroy [2023-04-01 00:43:53,159 INFO L138 BoogieDeclarations]: Found implementation of procedure __CS_pthread_mutex_lock [2023-04-01 00:43:53,159 INFO L138 BoogieDeclarations]: Found implementation of procedure __CS_pthread_mutex_unlock [2023-04-01 00:43:53,159 INFO L138 BoogieDeclarations]: Found implementation of procedure __CS_pthread_cond_init [2023-04-01 00:43:53,160 INFO L138 BoogieDeclarations]: Found implementation of procedure __CS_pthread_cond_signal [2023-04-01 00:43:53,160 INFO L138 BoogieDeclarations]: Found implementation of procedure __CS_pthread_cond_broadcast [2023-04-01 00:43:53,160 INFO L138 BoogieDeclarations]: Found implementation of procedure __CS_pthread_cond_wait [2023-04-01 00:43:53,160 INFO L138 BoogieDeclarations]: Found implementation of procedure __CS_assert [2023-04-01 00:43:53,160 INFO L138 BoogieDeclarations]: Found implementation of procedure __CS_assume [2023-04-01 00:43:53,160 INFO L138 BoogieDeclarations]: Found implementation of procedure __CS_pthread_join [2023-04-01 00:43:53,160 INFO L138 BoogieDeclarations]: Found implementation of procedure __CS_pthread_create [2023-04-01 00:43:53,160 INFO L138 BoogieDeclarations]: Found implementation of procedure t1 [2023-04-01 00:43:53,160 INFO L138 BoogieDeclarations]: Found implementation of procedure t2 [2023-04-01 00:43:53,160 INFO L138 BoogieDeclarations]: Found implementation of procedure main_thread [2023-04-01 00:43:53,160 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2023-04-01 00:43:53,160 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2023-04-01 00:43:53,161 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2023-04-01 00:43:53,161 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uchar [2023-04-01 00:43:53,161 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2023-04-01 00:43:53,161 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-04-01 00:43:53,161 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2023-04-01 00:43:53,161 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2023-04-01 00:43:53,161 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2023-04-01 00:43:53,161 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-04-01 00:43:53,161 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-04-01 00:43:53,161 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2023-04-01 00:43:53,161 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2023-04-01 00:43:53,161 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2023-04-01 00:43:53,162 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2023-04-01 00:43:53,162 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2023-04-01 00:43:53,162 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2023-04-01 00:43:53,162 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2023-04-01 00:43:53,162 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2023-04-01 00:43:53,162 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2023-04-01 00:43:53,162 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2023-04-01 00:43:53,162 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2023-04-01 00:43:53,162 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2023-04-01 00:43:53,162 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2023-04-01 00:43:53,162 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2023-04-01 00:43:53,162 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2023-04-01 00:43:53,163 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2023-04-01 00:43:53,163 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2023-04-01 00:43:53,163 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2023-04-01 00:43:53,163 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2023-04-01 00:43:53,164 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2023-04-01 00:43:53,164 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2023-04-01 00:43:53,164 INFO L130 BoogieDeclarations]: Found specification of procedure select [2023-04-01 00:43:53,165 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2023-04-01 00:43:53,165 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2023-04-01 00:43:53,165 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2023-04-01 00:43:53,165 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2023-04-01 00:43:53,165 INFO L130 BoogieDeclarations]: Found specification of procedure random [2023-04-01 00:43:53,165 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2023-04-01 00:43:53,166 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2023-04-01 00:43:53,167 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2023-04-01 00:43:53,167 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2023-04-01 00:43:53,167 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2023-04-01 00:43:53,167 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2023-04-01 00:43:53,167 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2023-04-01 00:43:53,167 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2023-04-01 00:43:53,167 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2023-04-01 00:43:53,167 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2023-04-01 00:43:53,167 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2023-04-01 00:43:53,167 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2023-04-01 00:43:53,167 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2023-04-01 00:43:53,167 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2023-04-01 00:43:53,168 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2023-04-01 00:43:53,168 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2023-04-01 00:43:53,168 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2023-04-01 00:43:53,168 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2023-04-01 00:43:53,168 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2023-04-01 00:43:53,168 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2023-04-01 00:43:53,168 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2023-04-01 00:43:53,168 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2023-04-01 00:43:53,168 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2023-04-01 00:43:53,168 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2023-04-01 00:43:53,168 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2023-04-01 00:43:53,169 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2023-04-01 00:43:53,169 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2023-04-01 00:43:53,169 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2023-04-01 00:43:53,169 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2023-04-01 00:43:53,169 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2023-04-01 00:43:53,169 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2023-04-01 00:43:53,169 INFO L130 BoogieDeclarations]: Found specification of procedure free [2023-04-01 00:43:53,169 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2023-04-01 00:43:53,169 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2023-04-01 00:43:53,169 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2023-04-01 00:43:53,169 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2023-04-01 00:43:53,169 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2023-04-01 00:43:53,169 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2023-04-01 00:43:53,169 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2023-04-01 00:43:53,170 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2023-04-01 00:43:53,170 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2023-04-01 00:43:53,170 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2023-04-01 00:43:53,170 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2023-04-01 00:43:53,170 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2023-04-01 00:43:53,170 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2023-04-01 00:43:53,170 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2023-04-01 00:43:53,170 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2023-04-01 00:43:53,170 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2023-04-01 00:43:53,170 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2023-04-01 00:43:53,171 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2023-04-01 00:43:53,171 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2023-04-01 00:43:53,171 INFO L130 BoogieDeclarations]: Found specification of procedure system [2023-04-01 00:43:53,171 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2023-04-01 00:43:53,171 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2023-04-01 00:43:53,171 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2023-04-01 00:43:53,172 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2023-04-01 00:43:53,172 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2023-04-01 00:43:53,174 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2023-04-01 00:43:53,174 INFO L130 BoogieDeclarations]: Found specification of procedure div [2023-04-01 00:43:53,177 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2023-04-01 00:43:53,177 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2023-04-01 00:43:53,177 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2023-04-01 00:43:53,177 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2023-04-01 00:43:53,177 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2023-04-01 00:43:53,177 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2023-04-01 00:43:53,177 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2023-04-01 00:43:53,177 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2023-04-01 00:43:53,177 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2023-04-01 00:43:53,177 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2023-04-01 00:43:53,177 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2023-04-01 00:43:53,177 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2023-04-01 00:43:53,177 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2023-04-01 00:43:53,177 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2023-04-01 00:43:53,178 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2023-04-01 00:43:53,178 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2023-04-01 00:43:53,178 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2023-04-01 00:43:53,178 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2023-04-01 00:43:53,178 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2023-04-01 00:43:53,178 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2023-04-01 00:43:53,178 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-04-01 00:43:53,178 INFO L130 BoogieDeclarations]: Found specification of procedure __CS_cs [2023-04-01 00:43:53,178 INFO L130 BoogieDeclarations]: Found specification of procedure __CS_pthread_mutex_init [2023-04-01 00:43:53,178 INFO L130 BoogieDeclarations]: Found specification of procedure __CS_pthread_mutex_destroy [2023-04-01 00:43:53,178 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-04-01 00:43:53,178 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-04-01 00:43:53,178 INFO L130 BoogieDeclarations]: Found specification of procedure __CS_pthread_mutex_lock [2023-04-01 00:43:53,178 INFO L130 BoogieDeclarations]: Found specification of procedure __CS_pthread_mutex_unlock [2023-04-01 00:43:53,178 INFO L130 BoogieDeclarations]: Found specification of procedure __CS_pthread_cond_init [2023-04-01 00:43:53,179 INFO L130 BoogieDeclarations]: Found specification of procedure __CS_pthread_cond_signal [2023-04-01 00:43:53,179 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-04-01 00:43:53,179 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-04-01 00:43:53,179 INFO L130 BoogieDeclarations]: Found specification of procedure __CS_pthread_cond_broadcast [2023-04-01 00:43:53,179 INFO L130 BoogieDeclarations]: Found specification of procedure __CS_pthread_cond_wait [2023-04-01 00:43:53,179 INFO L130 BoogieDeclarations]: Found specification of procedure __CS_assert [2023-04-01 00:43:53,179 INFO L130 BoogieDeclarations]: Found specification of procedure __CS_assume [2023-04-01 00:43:53,179 INFO L130 BoogieDeclarations]: Found specification of procedure __CS_pthread_join [2023-04-01 00:43:53,179 INFO L130 BoogieDeclarations]: Found specification of procedure __CS_pthread_create [2023-04-01 00:43:53,179 INFO L130 BoogieDeclarations]: Found specification of procedure t1 [2023-04-01 00:43:53,179 INFO L130 BoogieDeclarations]: Found specification of procedure t2 [2023-04-01 00:43:53,179 INFO L130 BoogieDeclarations]: Found specification of procedure main_thread [2023-04-01 00:43:53,179 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-04-01 00:43:53,179 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-04-01 00:43:53,179 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-04-01 00:43:53,179 INFO L130 BoogieDeclarations]: Found specification of procedure main [2023-04-01 00:43:53,180 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~$Pointer$ [2023-04-01 00:43:53,180 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2023-04-01 00:43:53,180 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-04-01 00:43:53,445 INFO L236 CfgBuilder]: Building ICFG [2023-04-01 00:43:53,447 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-04-01 00:43:53,542 INFO L771 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##17: assume !(0 != (if ~__CS_ret~0 % 256 % 4294967296 <= 2147483647 then ~__CS_ret~0 % 256 % 4294967296 else ~__CS_ret~0 % 256 % 4294967296 - 4294967296)); [2023-04-01 00:43:53,542 INFO L771 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##16: assume 0 != (if ~__CS_ret~0 % 256 % 4294967296 <= 2147483647 then ~__CS_ret~0 % 256 % 4294967296 else ~__CS_ret~0 % 256 % 4294967296 - 4294967296);#res.base, #res.offset := 0, 0;call ULTIMATE.dealloc(~#id1~0.base, ~#id1~0.offset);havoc ~#id1~0.base, ~#id1~0.offset;call ULTIMATE.dealloc(~#id2~0.base, ~#id2~0.offset);havoc ~#id2~0.base, ~#id2~0.offset; [2023-04-01 00:43:53,542 INFO L771 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##15: assume !(0 != (if ~__CS_ret~0 % 256 % 4294967296 <= 2147483647 then ~__CS_ret~0 % 256 % 4294967296 else ~__CS_ret~0 % 256 % 4294967296 - 4294967296)); [2023-04-01 00:43:53,542 INFO L771 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##14: assume 0 != (if ~__CS_ret~0 % 256 % 4294967296 <= 2147483647 then ~__CS_ret~0 % 256 % 4294967296 else ~__CS_ret~0 % 256 % 4294967296 - 4294967296);#res.base, #res.offset := 0, 0;call ULTIMATE.dealloc(~#id1~0.base, ~#id1~0.offset);havoc ~#id1~0.base, ~#id1~0.offset;call ULTIMATE.dealloc(~#id2~0.base, ~#id2~0.offset);havoc ~#id2~0.base, ~#id2~0.offset; [2023-04-01 00:43:53,542 INFO L771 $ProcedureCfgBuilder]: dead code at ProgramPoint L734: SUMMARY for call __CS_cs(); srcloc: null [2023-04-01 00:43:53,542 INFO L771 $ProcedureCfgBuilder]: dead code at ProgramPoint L734-1: assume 0 != (if ~__CS_ret~0 % 256 % 4294967296 <= 2147483647 then ~__CS_ret~0 % 256 % 4294967296 else ~__CS_ret~0 % 256 % 4294967296 - 4294967296);#res.base, #res.offset := 0, 0;call ULTIMATE.dealloc(~#id1~0.base, ~#id1~0.offset);havoc ~#id1~0.base, ~#id1~0.offset;call ULTIMATE.dealloc(~#id2~0.base, ~#id2~0.offset);havoc ~#id2~0.base, ~#id2~0.offset; [2023-04-01 00:43:53,542 INFO L771 $ProcedureCfgBuilder]: dead code at ProgramPoint L734-1: assume !(0 != (if ~__CS_ret~0 % 256 % 4294967296 <= 2147483647 then ~__CS_ret~0 % 256 % 4294967296 else ~__CS_ret~0 % 256 % 4294967296 - 4294967296)); [2023-04-01 00:43:56,684 INFO L277 CfgBuilder]: Performing block encoding [2023-04-01 00:43:56,809 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-04-01 00:43:56,810 INFO L302 CfgBuilder]: Removed 6 assume(true) statements. [2023-04-01 00:43:56,812 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.04 12:43:56 BoogieIcfgContainer [2023-04-01 00:43:56,812 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-04-01 00:43:56,813 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-04-01 00:43:56,813 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-04-01 00:43:56,816 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-04-01 00:43:56,816 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.04 12:43:52" (1/3) ... [2023-04-01 00:43:56,816 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52b8bf0c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.04 12:43:56, skipping insertion in model container [2023-04-01 00:43:56,816 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 12:43:52" (2/3) ... [2023-04-01 00:43:56,816 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52b8bf0c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.04 12:43:56, skipping insertion in model container [2023-04-01 00:43:56,817 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.04 12:43:56" (3/3) ... [2023-04-01 00:43:56,817 INFO L112 eAbstractionObserver]: Analyzing ICFG cs_fib_longer-1.i [2023-04-01 00:43:56,829 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-04-01 00:43:56,829 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-04-01 00:43:56,861 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-04-01 00:43:56,865 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;@46ede71d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-04-01 00:43:56,866 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-04-01 00:43:56,869 INFO L276 IsEmpty]: Start isEmpty. Operand has 190 states, 104 states have (on average 1.2019230769230769) internal successors, (125), 105 states have internal predecessors, (125), 73 states have call successors, (73), 10 states have call predecessors, (73), 10 states have return successors, (73), 73 states have call predecessors, (73), 73 states have call successors, (73) [2023-04-01 00:43:56,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 209 [2023-04-01 00:43:56,881 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 00:43:56,881 INFO L195 NwaCegarLoop]: trace histogram [48, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-01 00:43:56,882 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 00:43:56,885 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 00:43:56,885 INFO L85 PathProgramCache]: Analyzing trace with hash 160096231, now seen corresponding path program 1 times [2023-04-01 00:43:56,891 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-01 00:43:56,892 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [72482930] [2023-04-01 00:43:56,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 00:43:56,892 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms