/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data --core.log.level.for.class de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationJordan_32.epf -i ../../../trunk/examples/svcomp/loops/veris.c_NetBSD-libc_loop.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-6253b08 [2021-05-06 11:20:34,755 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-05-06 11:20:34,760 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-05-06 11:20:34,803 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-05-06 11:20:34,803 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-05-06 11:20:34,807 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-05-06 11:20:34,810 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-05-06 11:20:34,816 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-05-06 11:20:34,819 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-05-06 11:20:34,824 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-05-06 11:20:34,825 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-05-06 11:20:34,827 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-05-06 11:20:34,827 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-05-06 11:20:34,829 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-05-06 11:20:34,830 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-05-06 11:20:34,832 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-05-06 11:20:34,835 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-05-06 11:20:34,836 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-05-06 11:20:34,838 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-05-06 11:20:34,845 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-05-06 11:20:34,847 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-05-06 11:20:34,859 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-05-06 11:20:34,860 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-05-06 11:20:34,862 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-05-06 11:20:34,864 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-05-06 11:20:34,865 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-05-06 11:20:34,865 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-05-06 11:20:34,867 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-05-06 11:20:34,867 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-05-06 11:20:34,868 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-05-06 11:20:34,868 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-05-06 11:20:34,869 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-05-06 11:20:34,870 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-05-06 11:20:34,871 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-05-06 11:20:34,873 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-05-06 11:20:34,874 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-05-06 11:20:34,874 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-05-06 11:20:34,875 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-05-06 11:20:34,875 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-05-06 11:20:34,875 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-05-06 11:20:34,876 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-05-06 11:20:34,880 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationJordan_32.epf [2021-05-06 11:20:34,893 INFO L113 SettingsManager]: Loading preferences was successful [2021-05-06 11:20:34,893 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-05-06 11:20:34,896 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-05-06 11:20:34,896 INFO L138 SettingsManager]: * sizeof long=4 [2021-05-06 11:20:34,896 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-05-06 11:20:34,897 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-05-06 11:20:34,897 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-05-06 11:20:34,897 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-05-06 11:20:34,897 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-05-06 11:20:34,897 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-05-06 11:20:34,898 INFO L138 SettingsManager]: * sizeof long double=12 [2021-05-06 11:20:34,898 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-05-06 11:20:34,898 INFO L138 SettingsManager]: * Use constant arrays=true [2021-05-06 11:20:34,899 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-05-06 11:20:34,899 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-05-06 11:20:34,899 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-05-06 11:20:34,899 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-05-06 11:20:34,899 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-05-06 11:20:34,899 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-05-06 11:20:34,900 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-05-06 11:20:34,900 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2021-05-06 11:20:34,900 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-05-06 11:20:34,900 INFO L138 SettingsManager]: * Loop acceleration method that is used by accelerated interpolation=JORDAN [2021-05-06 11:20:34,900 INFO L138 SettingsManager]: * Use separate solver for trace checks=false 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2021-05-06 11:20:35,210 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-05-06 11:20:35,228 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-05-06 11:20:35,230 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-05-06 11:20:35,231 INFO L271 PluginConnector]: Initializing CDTParser... [2021-05-06 11:20:35,232 INFO L275 PluginConnector]: CDTParser initialized [2021-05-06 11:20:35,233 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops/veris.c_NetBSD-libc_loop.i [2021-05-06 11:20:35,291 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8b2c1271a/0e2da041c22f4adcb59b5f961f9a2e9b/FLAG2c4b287f8 [2021-05-06 11:20:35,816 INFO L306 CDTParser]: Found 1 translation units. [2021-05-06 11:20:35,816 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loops/veris.c_NetBSD-libc_loop.i [2021-05-06 11:20:35,822 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8b2c1271a/0e2da041c22f4adcb59b5f961f9a2e9b/FLAG2c4b287f8 [2021-05-06 11:20:36,282 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8b2c1271a/0e2da041c22f4adcb59b5f961f9a2e9b [2021-05-06 11:20:36,284 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-05-06 11:20:36,286 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-05-06 11:20:36,288 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-05-06 11:20:36,289 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-05-06 11:20:36,291 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-05-06 11:20:36,292 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.05 11:20:36" (1/1) ... [2021-05-06 11:20:36,293 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@11512d8e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.05 11:20:36, skipping insertion in model container [2021-05-06 11:20:36,293 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.05 11:20:36" (1/1) ... [2021-05-06 11:20:36,300 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-05-06 11:20:36,312 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-05-06 11:20:36,429 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loops/veris.c_NetBSD-libc_loop.i[825,838] [2021-05-06 11:20:36,447 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-05-06 11:20:36,455 INFO L203 MainTranslator]: Completed pre-run [2021-05-06 11:20:36,470 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loops/veris.c_NetBSD-libc_loop.i[825,838] [2021-05-06 11:20:36,498 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-05-06 11:20:36,522 INFO L208 MainTranslator]: Completed translation [2021-05-06 11:20:36,531 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.05 11:20:36 WrapperNode [2021-05-06 11:20:36,531 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-05-06 11:20:36,532 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-05-06 11:20:36,532 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-05-06 11:20:36,533 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-05-06 11:20:36,545 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.05 11:20:36" (1/1) ... [2021-05-06 11:20:36,545 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.05 11:20:36" (1/1) ... [2021-05-06 11:20:36,552 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.05 11:20:36" (1/1) ... [2021-05-06 11:20:36,552 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.05 11:20:36" (1/1) ... [2021-05-06 11:20:36,570 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.05 11:20:36" (1/1) ... [2021-05-06 11:20:36,573 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.05 11:20:36" (1/1) ... [2021-05-06 11:20:36,575 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.05 11:20:36" (1/1) ... [2021-05-06 11:20:36,576 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-05-06 11:20:36,577 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-05-06 11:20:36,577 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-05-06 11:20:36,577 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-05-06 11:20:36,577 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.05 11:20:36" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-05-06 11:20:36,635 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-05-06 11:20:36,635 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-05-06 11:20:36,636 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-05-06 11:20:36,636 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-05-06 11:20:36,636 INFO L138 BoogieDeclarations]: Found implementation of procedure glob2 [2021-05-06 11:20:36,636 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-05-06 11:20:36,636 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-05-06 11:20:36,636 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-05-06 11:20:36,637 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2021-05-06 11:20:36,637 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2021-05-06 11:20:36,637 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-05-06 11:20:36,637 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-05-06 11:20:36,638 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-05-06 11:20:36,638 INFO L130 BoogieDeclarations]: Found specification of procedure glob2 [2021-05-06 11:20:36,638 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-05-06 11:20:36,638 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-05-06 11:20:36,638 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-05-06 11:20:36,639 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-05-06 11:20:36,639 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-05-06 11:20:36,640 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-05-06 11:20:36,641 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-05-06 11:20:36,953 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-05-06 11:20:36,954 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2021-05-06 11:20:36,955 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.05 11:20:36 BoogieIcfgContainer [2021-05-06 11:20:36,955 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-05-06 11:20:36,956 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-05-06 11:20:36,957 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-05-06 11:20:36,959 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-05-06 11:20:36,959 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.05 11:20:36" (1/3) ... [2021-05-06 11:20:36,960 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a72aebb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.05 11:20:36, skipping insertion in model container [2021-05-06 11:20:36,960 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.05 11:20:36" (2/3) ... [2021-05-06 11:20:36,960 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a72aebb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.05 11:20:36, skipping insertion in model container [2021-05-06 11:20:36,960 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.05 11:20:36" (3/3) ... [2021-05-06 11:20:36,962 INFO L111 eAbstractionObserver]: Analyzing ICFG veris.c_NetBSD-libc_loop.i [2021-05-06 11:20:36,966 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2021-05-06 11:20:36,970 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-05-06 11:20:36,984 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-05-06 11:20:37,001 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-05-06 11:20:37,002 INFO L377 AbstractCegarLoop]: Hoare is true [2021-05-06 11:20:37,002 INFO L378 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2021-05-06 11:20:37,002 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-05-06 11:20:37,002 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-05-06 11:20:37,002 INFO L381 AbstractCegarLoop]: Difference is false [2021-05-06 11:20:37,002 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-05-06 11:20:37,002 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-05-06 11:20:37,015 INFO L276 IsEmpty]: Start isEmpty. Operand has 26 states, 16 states have (on average 1.25) internal successors, (20), 17 states have internal predecessors, (20), 4 states have call successors, (4), 4 states have call predecessors, (4), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2021-05-06 11:20:37,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-05-06 11:20:37,022 INFO L515 BasicCegarLoop]: Found error trace [2021-05-06 11:20:37,022 INFO L523 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-06 11:20:37,023 INFO L428 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-06 11:20:37,027 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-06 11:20:37,027 INFO L82 PathProgramCache]: Analyzing trace with hash 49640583, now seen corresponding path program 1 times [2021-05-06 11:20:37,034 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-06 11:20:37,034 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1789376873] [2021-05-06 11:20:37,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-06 11:20:37,085 INFO L224 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-05-06 11:20:37,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 11:20:37,358 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-06 11:20:37,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 11:20:37,370 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-06 11:20:37,372 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-06 11:20:37,373 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1789376873] [2021-05-06 11:20:37,374 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [1789376873] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-06 11:20:37,374 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-06 11:20:37,375 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-05-06 11:20:37,375 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1655484717] [2021-05-06 11:20:37,379 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-05-06 11:20:37,379 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-06 11:20:37,389 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-05-06 11:20:37,390 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-05-06 11:20:37,392 INFO L87 Difference]: Start difference. First operand has 26 states, 16 states have (on average 1.25) internal successors, (20), 17 states have internal predecessors, (20), 4 states have call successors, (4), 4 states have call predecessors, (4), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Second operand has 8 states, 7 states have (on average 1.1428571428571428) internal successors, (8), 5 states have internal predecessors, (8), 3 states have call successors, (4), 4 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 11:20:37,710 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-06 11:20:37,711 INFO L93 Difference]: Finished difference Result 55 states and 64 transitions. [2021-05-06 11:20:37,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-05-06 11:20:37,712 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 1.1428571428571428) internal successors, (8), 5 states have internal predecessors, (8), 3 states have call successors, (4), 4 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 13 [2021-05-06 11:20:37,713 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-06 11:20:37,717 INFO L225 Difference]: With dead ends: 55 [2021-05-06 11:20:37,718 INFO L226 Difference]: Without dead ends: 26 [2021-05-06 11:20:37,720 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 270.7ms TimeCoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2021-05-06 11:20:37,733 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2021-05-06 11:20:37,750 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 24. [2021-05-06 11:20:37,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 15 states have (on average 1.0666666666666667) internal successors, (16), 16 states have internal predecessors, (16), 5 states have call successors, (5), 5 states have call predecessors, (5), 3 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2021-05-06 11:20:37,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 24 transitions. [2021-05-06 11:20:37,753 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 24 transitions. Word has length 13 [2021-05-06 11:20:37,753 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-06 11:20:37,753 INFO L480 AbstractCegarLoop]: Abstraction has 24 states and 24 transitions. [2021-05-06 11:20:37,754 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 7 states have (on average 1.1428571428571428) internal successors, (8), 5 states have internal predecessors, (8), 3 states have call successors, (4), 4 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 11:20:37,754 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 24 transitions. [2021-05-06 11:20:37,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-05-06 11:20:37,754 INFO L515 BasicCegarLoop]: Found error trace [2021-05-06 11:20:37,755 INFO L523 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-06 11:20:37,755 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-05-06 11:20:37,755 INFO L428 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-06 11:20:37,756 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-06 11:20:37,756 INFO L82 PathProgramCache]: Analyzing trace with hash 1781648093, now seen corresponding path program 1 times [2021-05-06 11:20:37,756 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-06 11:20:37,756 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [923102036] [2021-05-06 11:20:37,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-06 11:20:37,775 INFO L73 AcceleratorJordan]: Jordan loop acceleration statistics: 2 HavocedVariables, 3 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2021-05-06 11:20:37,776 WARN L75 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2021-05-06 11:20:37,777 INFO L224 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-05-06 11:20:37,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 11:20:37,890 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-06 11:20:37,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 11:20:37,899 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-05-06 11:20:37,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 11:20:37,906 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-06 11:20:37,907 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-06 11:20:37,907 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [923102036] [2021-05-06 11:20:37,907 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [923102036] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-06 11:20:37,907 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-06 11:20:37,907 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-05-06 11:20:37,907 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [914620863] [2021-05-06 11:20:37,908 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-05-06 11:20:37,908 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-06 11:20:37,909 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-05-06 11:20:37,909 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2021-05-06 11:20:37,909 INFO L87 Difference]: Start difference. First operand 24 states and 24 transitions. Second operand has 9 states, 8 states have (on average 1.75) internal successors, (14), 6 states have internal predecessors, (14), 4 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-05-06 11:20:38,186 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-06 11:20:38,187 INFO L93 Difference]: Finished difference Result 36 states and 36 transitions. [2021-05-06 11:20:38,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-05-06 11:20:38,187 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 1.75) internal successors, (14), 6 states have internal predecessors, (14), 4 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 21 [2021-05-06 11:20:38,188 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-06 11:20:38,188 INFO L225 Difference]: With dead ends: 36 [2021-05-06 11:20:38,189 INFO L226 Difference]: Without dead ends: 34 [2021-05-06 11:20:38,190 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 231.6ms TimeCoverageRelationStatistics Valid=49, Invalid=161, Unknown=0, NotChecked=0, Total=210 [2021-05-06 11:20:38,190 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2021-05-06 11:20:38,198 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 32. [2021-05-06 11:20:38,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32 states, 21 states have (on average 1.0476190476190477) internal successors, (22), 22 states have internal predecessors, (22), 6 states have call successors, (6), 6 states have call predecessors, (6), 4 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) [2021-05-06 11:20:38,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 32 transitions. [2021-05-06 11:20:38,200 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 32 transitions. Word has length 21 [2021-05-06 11:20:38,200 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-06 11:20:38,200 INFO L480 AbstractCegarLoop]: Abstraction has 32 states and 32 transitions. [2021-05-06 11:20:38,200 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 1.75) internal successors, (14), 6 states have internal predecessors, (14), 4 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-05-06 11:20:38,200 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 32 transitions. [2021-05-06 11:20:38,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-05-06 11:20:38,201 INFO L515 BasicCegarLoop]: Found error trace [2021-05-06 11:20:38,201 INFO L523 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-06 11:20:38,202 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-05-06 11:20:38,202 INFO L428 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-06 11:20:38,202 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-06 11:20:38,202 INFO L82 PathProgramCache]: Analyzing trace with hash -1581946061, now seen corresponding path program 2 times [2021-05-06 11:20:38,203 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-06 11:20:38,203 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2091616998] [2021-05-06 11:20:38,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-06 11:20:38,209 INFO L73 AcceleratorJordan]: Jordan loop acceleration statistics: 2 HavocedVariables, 3 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2021-05-06 11:20:38,209 WARN L75 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2021-05-06 11:20:38,211 INFO L224 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-05-06 11:20:38,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 11:20:38,338 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-06 11:20:38,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 11:20:38,356 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-05-06 11:20:38,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 11:20:38,375 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-05-06 11:20:38,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 11:20:38,385 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-06 11:20:38,386 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-06 11:20:38,386 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2091616998] [2021-05-06 11:20:38,386 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [2091616998] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-06 11:20:38,386 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-06 11:20:38,386 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-05-06 11:20:38,387 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [589264334] [2021-05-06 11:20:38,387 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-05-06 11:20:38,387 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-06 11:20:38,388 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-05-06 11:20:38,388 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-05-06 11:20:38,388 INFO L87 Difference]: Start difference. First operand 32 states and 32 transitions. Second operand has 9 states, 7 states have (on average 2.0) internal successors, (14), 6 states have internal predecessors, (14), 4 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-05-06 11:20:38,607 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-06 11:20:38,607 INFO L93 Difference]: Finished difference Result 32 states and 32 transitions. [2021-05-06 11:20:38,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-05-06 11:20:38,608 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 7 states have (on average 2.0) internal successors, (14), 6 states have internal predecessors, (14), 4 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 29 [2021-05-06 11:20:38,609 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-06 11:20:38,609 INFO L225 Difference]: With dead ends: 32 [2021-05-06 11:20:38,609 INFO L226 Difference]: Without dead ends: 0 [2021-05-06 11:20:38,610 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 224.7ms TimeCoverageRelationStatistics Valid=43, Invalid=139, Unknown=0, NotChecked=0, Total=182 [2021-05-06 11:20:38,611 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-05-06 11:20:38,611 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-05-06 11:20:38,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 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) [2021-05-06 11:20:38,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-05-06 11:20:38,611 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 29 [2021-05-06 11:20:38,611 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-06 11:20:38,612 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-05-06 11:20:38,612 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 7 states have (on average 2.0) internal successors, (14), 6 states have internal predecessors, (14), 4 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-05-06 11:20:38,612 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-05-06 11:20:38,612 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-05-06 11:20:38,612 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-05-06 11:20:38,614 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-05-06 11:20:39,139 INFO L198 CegarLoopUtils]: For program point reach_errorEXIT(line 12) no Hoare annotation was computed. [2021-05-06 11:20:39,139 INFO L198 CegarLoopUtils]: For program point reach_errorENTRY(line 12) no Hoare annotation was computed. [2021-05-06 11:20:39,139 INFO L198 CegarLoopUtils]: For program point L12-1(line 12) no Hoare annotation was computed. [2021-05-06 11:20:39,139 INFO L201 CegarLoopUtils]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2021-05-06 11:20:39,139 INFO L194 CegarLoopUtils]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= |#t~string0.offset| |old(#t~string0.offset)|) (= |old(#length)| |#length|) (= |#t~string1.base| |old(#t~string1.base)|) (= ~tmp~0.base |old(~tmp~0.base)|) (= |#NULL.base| |old(#NULL.base)|) (= |#t~string0.base| |old(#t~string0.base)|) (= |#NULL.offset| |old(#NULL.offset)|) (= ~tmp~0.offset |old(~tmp~0.offset)|) (= |old(#valid)| |#valid|) (= |#t~string1.offset| |old(#t~string1.offset)|)) [2021-05-06 11:20:39,140 INFO L201 CegarLoopUtils]: At program point ULTIMATE.initEXIT(line -1) the Hoare annotation is: true [2021-05-06 11:20:39,140 INFO L194 CegarLoopUtils]: At program point L31(line 31) the Hoare annotation is: (or (not (<= |glob2_#in~pathlim.offset| ~tmp~0.offset)) (and (<= glob2_~p~0.offset ~tmp~0.offset) (<= glob2_~pathlim.offset ~tmp~0.offset) (= ~tmp~0.base glob2_~p~0.base)) (not (= ~tmp~0.base |glob2_#in~pathbuf.base|)) (not (= |glob2_#in~pathbuf.offset| 0)) (not (<= 4 ~tmp~0.offset))) [2021-05-06 11:20:39,140 INFO L201 CegarLoopUtils]: At program point glob2ENTRY(lines 25 36) the Hoare annotation is: true [2021-05-06 11:20:39,140 INFO L194 CegarLoopUtils]: At program point L31-1(line 31) the Hoare annotation is: (or (not (<= |glob2_#in~pathlim.offset| ~tmp~0.offset)) (and (<= glob2_~p~0.offset ~tmp~0.offset) (<= glob2_~pathlim.offset ~tmp~0.offset) (= ~tmp~0.base glob2_~p~0.base)) (not (= ~tmp~0.base |glob2_#in~pathbuf.base|)) (not (= |glob2_#in~pathbuf.offset| 0)) (not (<= 4 ~tmp~0.offset))) [2021-05-06 11:20:39,140 INFO L194 CegarLoopUtils]: At program point L29-2(lines 29 33) the Hoare annotation is: (or (not (<= |glob2_#in~pathlim.offset| ~tmp~0.offset)) (and (<= glob2_~p~0.offset ~tmp~0.offset) (<= glob2_~pathlim.offset ~tmp~0.offset) (= ~tmp~0.base glob2_~p~0.base)) (not (= ~tmp~0.base |glob2_#in~pathbuf.base|)) (not (= |glob2_#in~pathbuf.offset| 0)) (not (<= 4 ~tmp~0.offset))) [2021-05-06 11:20:39,140 INFO L194 CegarLoopUtils]: At program point L29-3(lines 29 33) the Hoare annotation is: (or (not (<= |glob2_#in~pathlim.offset| ~tmp~0.offset)) (not (= ~tmp~0.base |glob2_#in~pathbuf.base|)) (not (= |glob2_#in~pathbuf.offset| 0)) (and (<= glob2_~pathlim.offset ~tmp~0.offset) (= ~tmp~0.base glob2_~p~0.base)) (not (<= 4 ~tmp~0.offset))) [2021-05-06 11:20:39,140 INFO L201 CegarLoopUtils]: At program point L29-4(lines 29 33) the Hoare annotation is: true [2021-05-06 11:20:39,141 INFO L201 CegarLoopUtils]: At program point glob2EXIT(lines 25 36) the Hoare annotation is: true [2021-05-06 11:20:39,141 INFO L201 CegarLoopUtils]: At program point glob2FINAL(lines 25 36) the Hoare annotation is: true [2021-05-06 11:20:39,141 INFO L201 CegarLoopUtils]: At program point ULTIMATE.startEXIT(line -1) the Hoare annotation is: true [2021-05-06 11:20:39,141 INFO L201 CegarLoopUtils]: At program point L-1(line -1) the Hoare annotation is: true [2021-05-06 11:20:39,141 INFO L201 CegarLoopUtils]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2021-05-06 11:20:39,141 INFO L201 CegarLoopUtils]: At program point ULTIMATE.startFINAL(line -1) the Hoare annotation is: true [2021-05-06 11:20:39,141 INFO L194 CegarLoopUtils]: At program point L46(line 46) the Hoare annotation is: (and (<= (+ |main_~#pathbuf~0.offset| 4) ~tmp~0.offset) (<= main_~bound~0.offset ~tmp~0.offset) (= ~tmp~0.base |main_~#pathbuf~0.base|) (= |main_~#pathbuf~0.offset| 0)) [2021-05-06 11:20:39,141 INFO L194 CegarLoopUtils]: At program point mainENTRY(lines 38 49) the Hoare annotation is: (and (= |old(#length)| |#length|) (= |old(~tmp~0.base)| ~tmp~0.base) (= ~tmp~0.offset |old(~tmp~0.offset)|) (= |old(#valid)| |#valid|)) [2021-05-06 11:20:39,141 INFO L194 CegarLoopUtils]: At program point L46-1(line 46) the Hoare annotation is: (and (<= (+ |main_~#pathbuf~0.offset| 4) ~tmp~0.offset) (= ~tmp~0.base |main_~#pathbuf~0.base|) (= |main_~#pathbuf~0.offset| 0)) [2021-05-06 11:20:39,142 INFO L201 CegarLoopUtils]: At program point mainFINAL(lines 38 49) the Hoare annotation is: true [2021-05-06 11:20:39,142 INFO L201 CegarLoopUtils]: At program point mainEXIT(lines 38 49) the Hoare annotation is: true [2021-05-06 11:20:39,142 INFO L194 CegarLoopUtils]: At program point L16(line 16) the Hoare annotation is: (= |__VERIFIER_assert_#in~cond| 0) [2021-05-06 11:20:39,142 INFO L194 CegarLoopUtils]: At program point L15(lines 15 17) the Hoare annotation is: (or (= |__VERIFIER_assert_#in~cond| 0) (not (= __VERIFIER_assert_~cond 0))) [2021-05-06 11:20:39,142 INFO L201 CegarLoopUtils]: At program point __VERIFIER_assertENTRY(lines 14 19) the Hoare annotation is: true [2021-05-06 11:20:39,142 INFO L194 CegarLoopUtils]: At program point L15-2(lines 14 19) the Hoare annotation is: (or (= |__VERIFIER_assert_#in~cond| 0) (not (= __VERIFIER_assert_~cond 0))) [2021-05-06 11:20:39,142 INFO L194 CegarLoopUtils]: At program point __VERIFIER_assertEXIT(lines 14 19) the Hoare annotation is: (or (= |__VERIFIER_assert_#in~cond| 0) (not (= __VERIFIER_assert_~cond 0))) [2021-05-06 11:20:39,142 INFO L194 CegarLoopUtils]: At program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 16) the Hoare annotation is: (= |__VERIFIER_assert_#in~cond| 0) [2021-05-06 11:20:39,156 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.05 11:20:39 BoogieIcfgContainer [2021-05-06 11:20:39,156 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-05-06 11:20:39,157 INFO L168 Benchmark]: Toolchain (without parser) took 2871.38 ms. Allocated memory was 189.8 MB in the beginning and 241.2 MB in the end (delta: 51.4 MB). Free memory was 154.9 MB in the beginning and 136.8 MB in the end (delta: 18.2 MB). Peak memory consumption was 92.7 MB. Max. memory is 8.0 GB. [2021-05-06 11:20:39,158 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 189.8 MB. Free memory is still 172.3 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-05-06 11:20:39,158 INFO L168 Benchmark]: CACSL2BoogieTranslator took 242.84 ms. Allocated memory is still 189.8 MB. Free memory was 154.7 MB in the beginning and 173.6 MB in the end (delta: -18.9 MB). Peak memory consumption was 11.9 MB. Max. memory is 8.0 GB. [2021-05-06 11:20:39,158 INFO L168 Benchmark]: Boogie Preprocessor took 44.08 ms. Allocated memory is still 189.8 MB. Free memory was 173.6 MB in the beginning and 172.2 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-05-06 11:20:39,159 INFO L168 Benchmark]: RCFGBuilder took 378.45 ms. Allocated memory is still 189.8 MB. Free memory was 172.2 MB in the beginning and 157.2 MB in the end (delta: 15.0 MB). Peak memory consumption was 14.7 MB. Max. memory is 8.0 GB. [2021-05-06 11:20:39,159 INFO L168 Benchmark]: TraceAbstraction took 2199.84 ms. Allocated memory was 189.8 MB in the beginning and 241.2 MB in the end (delta: 51.4 MB). Free memory was 156.8 MB in the beginning and 136.8 MB in the end (delta: 20.1 MB). Peak memory consumption was 94.4 MB. Max. memory is 8.0 GB. [2021-05-06 11:20:39,161 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 189.8 MB. Free memory is still 172.3 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 242.84 ms. Allocated memory is still 189.8 MB. Free memory was 154.7 MB in the beginning and 173.6 MB in the end (delta: -18.9 MB). Peak memory consumption was 11.9 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 44.08 ms. Allocated memory is still 189.8 MB. Free memory was 173.6 MB in the beginning and 172.2 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 378.45 ms. Allocated memory is still 189.8 MB. Free memory was 172.2 MB in the beginning and 157.2 MB in the end (delta: 15.0 MB). Peak memory consumption was 14.7 MB. Max. memory is 8.0 GB. * TraceAbstraction took 2199.84 ms. Allocated memory was 189.8 MB in the beginning and 241.2 MB in the end (delta: 51.4 MB). Free memory was 156.8 MB in the beginning and 136.8 MB in the end (delta: 20.1 MB). Peak memory consumption was 94.4 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 16]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 29 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 1613.6ms, OverallIterations: 3, TraceHistogramMax: 3, EmptinessCheckTime: 11.2ms, AutomataDifference: 844.4ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 525.2ms, InitialAbstractionConstructionTime: 9.4ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 30 SDtfs, 89 SDslu, 100 SDs, 0 SdLazy, 247 SolverSat, 39 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 195.4ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 54 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 727.2ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=32occurred in iteration=2, InterpolantAutomatonStates: 28, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 31.1ms AutomataMinimizationTime, 3 MinimizatonAttempts, 4 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0ms HoareAnnotationTime, 26 LocationsWithAnnotation, 44 PreInvPairs, 70 NumberOfFragments, 219 HoareAnnotationTreeSize, 44 FomulaSimplifications, 1098 FormulaSimplificationTreeSizeReduction, 144.9ms HoareSimplificationTime, 26 FomulaSimplificationsInter, 556 FormulaSimplificationTreeSizeReductionInter, 358.3ms HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: No data available, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 29]: Loop Invariant Derived loop invariant: (((!(pathlim <= tmp) || !(tmp == pathbuf)) || !(pathbuf == 0)) || (pathlim <= tmp && tmp == p)) || !(4 <= tmp) - ProcedureContractResult [Line: 25]: Procedure Contract for glob2 Derived contract for procedure glob2: 1 - ProcedureContractResult [Line: 38]: Procedure Contract for main Derived contract for procedure main: 1 - ProcedureContractResult [Line: 14]: Procedure Contract for __VERIFIER_assert Derived contract for procedure __VERIFIER_assert: \old(cond) == 0 || !(cond == 0) RESULT: Ultimate proved your program to be correct! Received shutdown request...