/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationWernerOverapprox_32.epf -i ../../../trunk/examples/svcomp/loops/string-2.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-36cd7be [2021-02-24 04:47:17,924 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-02-24 04:47:17,928 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-02-24 04:47:17,969 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-02-24 04:47:17,969 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-02-24 04:47:17,971 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-02-24 04:47:17,973 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-02-24 04:47:17,975 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-02-24 04:47:17,977 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-02-24 04:47:17,978 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-02-24 04:47:17,980 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-02-24 04:47:17,981 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-02-24 04:47:17,982 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-02-24 04:47:17,983 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-02-24 04:47:17,985 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-02-24 04:47:17,986 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-02-24 04:47:17,987 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-02-24 04:47:17,989 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-02-24 04:47:17,991 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-02-24 04:47:17,993 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-02-24 04:47:17,995 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-02-24 04:47:18,001 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-02-24 04:47:18,005 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-02-24 04:47:18,007 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-02-24 04:47:18,013 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-02-24 04:47:18,014 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-02-24 04:47:18,014 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-02-24 04:47:18,017 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-02-24 04:47:18,018 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-02-24 04:47:18,020 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-02-24 04:47:18,021 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-02-24 04:47:18,022 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-02-24 04:47:18,024 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-02-24 04:47:18,025 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-02-24 04:47:18,029 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-02-24 04:47:18,030 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-02-24 04:47:18,031 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-02-24 04:47:18,031 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-02-24 04:47:18,032 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-02-24 04:47:18,033 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-02-24 04:47:18,035 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-02-24 04:47:18,036 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationWernerOverapprox_32.epf [2021-02-24 04:47:18,076 INFO L113 SettingsManager]: Loading preferences was successful [2021-02-24 04:47:18,076 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-02-24 04:47:18,079 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-02-24 04:47:18,080 INFO L138 SettingsManager]: * sizeof long=4 [2021-02-24 04:47:18,081 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-02-24 04:47:18,081 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-02-24 04:47:18,081 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-02-24 04:47:18,081 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-02-24 04:47:18,082 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-02-24 04:47:18,082 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-02-24 04:47:18,082 INFO L138 SettingsManager]: * sizeof long double=12 [2021-02-24 04:47:18,082 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-02-24 04:47:18,082 INFO L138 SettingsManager]: * Use constant arrays=true [2021-02-24 04:47:18,083 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-02-24 04:47:18,083 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-02-24 04:47:18,083 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2021-02-24 04:47:18,083 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-02-24 04:47:18,084 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-02-24 04:47:18,084 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-24 04:47:18,084 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-02-24 04:47:18,084 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2021-02-24 04:47:18,084 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-02-24 04:47:18,085 INFO L138 SettingsManager]: * Loop acceleration method that is used by accelerated interpolation=WERNER_OVERAPPROX [2021-02-24 04:47:18,086 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-02-24 04:47:18,608 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-02-24 04:47:18,639 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-02-24 04:47:18,643 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-02-24 04:47:18,644 INFO L271 PluginConnector]: Initializing CDTParser... [2021-02-24 04:47:18,645 INFO L275 PluginConnector]: CDTParser initialized [2021-02-24 04:47:18,646 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops/string-2.i [2021-02-24 04:47:18,736 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/205ded803/128b6cd5da274e81bd48d4e981dd9f6f/FLAG59f6c324a [2021-02-24 04:47:19,383 INFO L306 CDTParser]: Found 1 translation units. [2021-02-24 04:47:19,384 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loops/string-2.i [2021-02-24 04:47:19,393 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/205ded803/128b6cd5da274e81bd48d4e981dd9f6f/FLAG59f6c324a [2021-02-24 04:47:19,697 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/205ded803/128b6cd5da274e81bd48d4e981dd9f6f [2021-02-24 04:47:19,701 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-02-24 04:47:19,716 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-02-24 04:47:19,718 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-02-24 04:47:19,718 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-02-24 04:47:19,723 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-02-24 04:47:19,724 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.02 04:47:19" (1/1) ... [2021-02-24 04:47:19,725 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5ca0869c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:47:19, skipping insertion in model container [2021-02-24 04:47:19,726 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.02 04:47:19" (1/1) ... [2021-02-24 04:47:19,735 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-02-24 04:47:19,755 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-02-24 04:47:19,931 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loops/string-2.i[896,909] [2021-02-24 04:47:19,961 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-24 04:47:19,971 INFO L203 MainTranslator]: Completed pre-run [2021-02-24 04:47:19,987 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loops/string-2.i[896,909] [2021-02-24 04:47:20,006 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-24 04:47:20,026 INFO L208 MainTranslator]: Completed translation [2021-02-24 04:47:20,026 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:47:20 WrapperNode [2021-02-24 04:47:20,026 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-02-24 04:47:20,028 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-02-24 04:47:20,028 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-02-24 04:47:20,028 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-02-24 04:47:20,044 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:47:20" (1/1) ... [2021-02-24 04:47:20,044 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:47:20" (1/1) ... [2021-02-24 04:47:20,055 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:47:20" (1/1) ... [2021-02-24 04:47:20,055 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:47:20" (1/1) ... [2021-02-24 04:47:20,067 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:47:20" (1/1) ... [2021-02-24 04:47:20,075 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:47:20" (1/1) ... [2021-02-24 04:47:20,077 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:47:20" (1/1) ... [2021-02-24 04:47:20,081 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-02-24 04:47:20,082 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-02-24 04:47:20,082 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-02-24 04:47:20,082 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-02-24 04:47:20,083 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:47:20" (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 [2021-02-24 04:47:20,207 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-02-24 04:47:20,208 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-02-24 04:47:20,208 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-02-24 04:47:20,208 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-02-24 04:47:20,209 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-02-24 04:47:20,209 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-02-24 04:47:20,209 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-02-24 04:47:20,210 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-02-24 04:47:20,210 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2021-02-24 04:47:20,211 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2021-02-24 04:47:20,211 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-02-24 04:47:20,211 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-02-24 04:47:20,211 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-02-24 04:47:20,212 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-02-24 04:47:20,212 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2021-02-24 04:47:20,213 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-02-24 04:47:20,213 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-02-24 04:47:20,214 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-02-24 04:47:20,214 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-02-24 04:47:20,217 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-02-24 04:47:20,217 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-02-24 04:47:20,217 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-02-24 04:47:20,857 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-02-24 04:47:20,857 INFO L299 CfgBuilder]: Removed 5 assume(true) statements. [2021-02-24 04:47:20,860 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.02 04:47:20 BoogieIcfgContainer [2021-02-24 04:47:20,860 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-02-24 04:47:20,862 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-02-24 04:47:20,862 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-02-24 04:47:20,866 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-02-24 04:47:20,866 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.02 04:47:19" (1/3) ... [2021-02-24 04:47:20,868 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@316c1d05 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.02 04:47:20, skipping insertion in model container [2021-02-24 04:47:20,868 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:47:20" (2/3) ... [2021-02-24 04:47:20,868 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@316c1d05 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.02 04:47:20, skipping insertion in model container [2021-02-24 04:47:20,868 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.02 04:47:20" (3/3) ... [2021-02-24 04:47:20,870 INFO L111 eAbstractionObserver]: Analyzing ICFG string-2.i [2021-02-24 04:47:20,878 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2021-02-24 04:47:20,884 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-02-24 04:47:20,904 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-02-24 04:47:20,932 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-02-24 04:47:20,932 INFO L377 AbstractCegarLoop]: Hoare is true [2021-02-24 04:47:20,933 INFO L378 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2021-02-24 04:47:20,933 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-02-24 04:47:20,933 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-02-24 04:47:20,933 INFO L381 AbstractCegarLoop]: Difference is false [2021-02-24 04:47:20,933 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-02-24 04:47:20,934 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-02-24 04:47:20,953 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states. [2021-02-24 04:47:20,966 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2021-02-24 04:47:20,966 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 04:47:20,967 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-24 04:47:20,968 INFO L428 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 04:47:20,974 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 04:47:20,975 INFO L82 PathProgramCache]: Analyzing trace with hash -449373515, now seen corresponding path program 1 times [2021-02-24 04:47:20,985 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 04:47:20,986 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [210580832] [2021-02-24 04:47:20,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 04:47:21,076 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-24 04:47:21,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:47:21,205 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:47:21,210 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:47:21,211 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:47:21,212 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:47:21,272 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 04:47:21,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:47:21,290 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:47:21,291 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:47:21,307 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-24 04:47:21,309 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [210580832] [2021-02-24 04:47:21,312 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-24 04:47:21,312 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-02-24 04:47:21,313 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2107799261] [2021-02-24 04:47:21,318 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-02-24 04:47:21,319 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 04:47:21,334 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-02-24 04:47:21,335 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-02-24 04:47:21,337 INFO L87 Difference]: Start difference. First operand 110 states. Second operand 3 states. [2021-02-24 04:47:21,787 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 04:47:21,787 INFO L93 Difference]: Finished difference Result 193 states and 220 transitions. [2021-02-24 04:47:21,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-02-24 04:47:21,789 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 41 [2021-02-24 04:47:21,790 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 04:47:21,798 INFO L225 Difference]: With dead ends: 193 [2021-02-24 04:47:21,799 INFO L226 Difference]: Without dead ends: 81 [2021-02-24 04:47:21,803 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-02-24 04:47:21,824 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81 states. [2021-02-24 04:47:21,866 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81 to 81. [2021-02-24 04:47:21,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 81 states. [2021-02-24 04:47:21,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 86 transitions. [2021-02-24 04:47:21,876 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 86 transitions. Word has length 41 [2021-02-24 04:47:21,876 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 04:47:21,876 INFO L480 AbstractCegarLoop]: Abstraction has 81 states and 86 transitions. [2021-02-24 04:47:21,877 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-02-24 04:47:21,878 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 86 transitions. [2021-02-24 04:47:21,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2021-02-24 04:47:21,880 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 04:47:21,881 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-24 04:47:21,882 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-02-24 04:47:21,882 INFO L428 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 04:47:21,883 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 04:47:21,883 INFO L82 PathProgramCache]: Analyzing trace with hash -1742045469, now seen corresponding path program 1 times [2021-02-24 04:47:21,883 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 04:47:21,886 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [762346866] [2021-02-24 04:47:21,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 04:47:21,897 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-24 04:47:21,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:47:21,961 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:47:21,962 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:47:21,963 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:47:21,964 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:47:21,969 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:47:21,969 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:47:22,000 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 04:47:22,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:47:22,019 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:47:22,020 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:47:22,029 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-24 04:47:22,032 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [762346866] [2021-02-24 04:47:22,033 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-24 04:47:22,033 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-02-24 04:47:22,033 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [130965794] [2021-02-24 04:47:22,034 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-02-24 04:47:22,035 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 04:47:22,037 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-02-24 04:47:22,037 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-02-24 04:47:22,038 INFO L87 Difference]: Start difference. First operand 81 states and 86 transitions. Second operand 4 states. [2021-02-24 04:47:22,308 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 04:47:22,309 INFO L93 Difference]: Finished difference Result 148 states and 159 transitions. [2021-02-24 04:47:22,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-02-24 04:47:22,309 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 45 [2021-02-24 04:47:22,310 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 04:47:22,313 INFO L225 Difference]: With dead ends: 148 [2021-02-24 04:47:22,313 INFO L226 Difference]: Without dead ends: 93 [2021-02-24 04:47:22,315 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-02-24 04:47:22,315 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2021-02-24 04:47:22,328 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 83. [2021-02-24 04:47:22,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 83 states. [2021-02-24 04:47:22,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 88 transitions. [2021-02-24 04:47:22,331 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 88 transitions. Word has length 45 [2021-02-24 04:47:22,331 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 04:47:22,331 INFO L480 AbstractCegarLoop]: Abstraction has 83 states and 88 transitions. [2021-02-24 04:47:22,331 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-02-24 04:47:22,331 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 88 transitions. [2021-02-24 04:47:22,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2021-02-24 04:47:22,334 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 04:47:22,334 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-24 04:47:22,334 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-02-24 04:47:22,334 INFO L428 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 04:47:22,335 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 04:47:22,335 INFO L82 PathProgramCache]: Analyzing trace with hash 550833038, now seen corresponding path program 1 times [2021-02-24 04:47:22,335 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 04:47:22,335 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1365590710] [2021-02-24 04:47:22,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 04:47:22,363 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:47:22,378 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-02-24 04:47:22,385 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:47:22,388 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-02-24 04:47:22,401 WARN L141 QuantifierPusher]: treesize reduction 4, result has 83.3 percent of original size [2021-02-24 04:47:22,417 INFO L723 QuantifierPusher]: Distributing 3 disjuncts over 3 conjuncts [2021-02-24 04:47:22,423 INFO L730 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:47:22,423 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:47:22,426 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:47:22,433 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-02-24 04:47:22,437 WARN L147 QuantifierPusher]: treesize reduction 4, result has 83.3 percent of original size 20 [2021-02-24 04:47:22,446 WARN L141 QuantifierPusher]: treesize reduction 11, result has 82.0 percent of original size [2021-02-24 04:47:22,450 WARN L147 QuantifierPusher]: treesize reduction 11, result has 82.0 percent of original size 50 [2021-02-24 04:47:22,451 INFO L206 tedInterpolationCore]: Starting analysis with loop acceleration approximation PRECISE [2021-02-24 04:47:22,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:47:22,572 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:47:22,573 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:47:22,574 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:47:22,575 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:47:22,581 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:47:22,582 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:47:22,588 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:47:22,589 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:47:22,599 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:47:22,600 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:47:22,627 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 04:47:22,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:47:22,638 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:47:22,639 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:47:22,645 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-24 04:47:22,649 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:47:22,652 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:47:22,654 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:47:22,656 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-02-24 04:47:22,658 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-02-24 04:47:22,660 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:47:22,660 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:47:22,670 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:47:22,671 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-02-24 04:47:22,687 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:47:22,688 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:47:22,689 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:47:22,690 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-02-24 04:47:22,691 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-02-24 04:47:22,720 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:47:22,722 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:47:22,724 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:47:22,725 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-02-24 04:47:22,726 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-02-24 04:47:22,730 WARN L860 $PredicateComparison]: unable to prove that (and (exists ((|v_#memory_int_20| (Array Int (Array Int Int))) (|v_main_#t~nondet4_9| Int)) (and (<= |v_main_#t~nondet4_9| 127) (<= 0 (+ |v_main_#t~nondet4_9| 128)) (= |c_#memory_int| (store |v_#memory_int_20| |c_main_~#string_A~0.base| (store (select |v_#memory_int_20| |c_main_~#string_A~0.base|) (+ c_main_~i~0 |c_main_~#string_A~0.offset|) |v_main_#t~nondet4_9|))))) (< c_main_~i~0 5)) is different from true [2021-02-24 04:47:22,732 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:47:22,734 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:47:22,735 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:47:22,736 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-02-24 04:47:22,737 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-02-24 04:47:22,787 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:47:22,801 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:47:22,804 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:47:22,807 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-02-24 04:47:22,812 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-02-24 04:47:22,843 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:47:22,847 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:47:22,848 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:47:22,849 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-02-24 04:47:22,850 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-02-24 04:47:22,855 WARN L860 $PredicateComparison]: unable to prove that (and (exists ((|v_#memory_int_20| (Array Int (Array Int Int))) (|v_main_#t~nondet4_9| Int)) (and (<= |v_main_#t~nondet4_9| 127) (= |c_#memory_int| (store |v_#memory_int_20| |c_main_~#string_A~0.base| (store (select |v_#memory_int_20| |c_main_~#string_A~0.base|) (+ c_main_~i~0 |c_main_~#string_A~0.offset| (- 1)) |v_main_#t~nondet4_9|))) (<= 0 (+ |v_main_#t~nondet4_9| 128)))) (< c_main_~i~0 6)) is different from true [2021-02-24 04:47:22,856 WARN L141 QuantifierPusher]: treesize reduction 7, result has 12.5 percent of original size [2021-02-24 04:47:22,857 WARN L147 QuantifierPusher]: treesize reduction 7, result has 12.5 percent of original size 1 [2021-02-24 04:47:22,857 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1365590710] [2021-02-24 04:47:22,858 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-24 04:47:22,858 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2021-02-24 04:47:22,858 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1895081980] [2021-02-24 04:47:22,859 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-02-24 04:47:22,859 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 04:47:22,860 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-02-24 04:47:22,860 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=85, Unknown=3, NotChecked=38, Total=156 [2021-02-24 04:47:22,860 INFO L87 Difference]: Start difference. First operand 83 states and 88 transitions. Second operand 13 states. [2021-02-24 04:47:23,419 WARN L860 $PredicateComparison]: unable to prove that (and (exists ((|v_#memory_int_20| (Array Int (Array Int Int))) (|v_main_#t~nondet4_9| Int)) (and (<= |v_main_#t~nondet4_9| 127) (= |c_#memory_int| (store |v_#memory_int_20| |c_main_~#string_A~0.base| (store (select |v_#memory_int_20| |c_main_~#string_A~0.base|) (+ c_main_~i~0 |c_main_~#string_A~0.offset| (- 1)) |v_main_#t~nondet4_9|))) (<= 0 (+ |v_main_#t~nondet4_9| 128)))) (< c_main_~i~0 5) (< c_main_~i~0 6)) is different from true [2021-02-24 04:47:23,640 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 04:47:23,641 INFO L93 Difference]: Finished difference Result 165 states and 177 transitions. [2021-02-24 04:47:23,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-02-24 04:47:23,641 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 59 [2021-02-24 04:47:23,642 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 04:47:23,643 INFO L225 Difference]: With dead ends: 165 [2021-02-24 04:47:23,643 INFO L226 Difference]: Without dead ends: 109 [2021-02-24 04:47:23,645 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 3 IntricatePredicates, 0 DeprecatedPredicates, 89 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=116, Invalid=416, Unknown=32, NotChecked=138, Total=702 [2021-02-24 04:47:23,645 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2021-02-24 04:47:23,660 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 97. [2021-02-24 04:47:23,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 97 states. [2021-02-24 04:47:23,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 102 transitions. [2021-02-24 04:47:23,662 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 102 transitions. Word has length 59 [2021-02-24 04:47:23,662 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 04:47:23,662 INFO L480 AbstractCegarLoop]: Abstraction has 97 states and 102 transitions. [2021-02-24 04:47:23,662 INFO L481 AbstractCegarLoop]: Interpolant automaton has 13 states. [2021-02-24 04:47:23,663 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 102 transitions. [2021-02-24 04:47:23,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2021-02-24 04:47:23,664 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 04:47:23,665 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-24 04:47:23,665 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-02-24 04:47:23,665 INFO L428 AbstractCegarLoop]: === Iteration 4 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 04:47:23,679 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 04:47:23,680 INFO L82 PathProgramCache]: Analyzing trace with hash -349605437, now seen corresponding path program 2 times [2021-02-24 04:47:23,680 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 04:47:23,680 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1463666754] [2021-02-24 04:47:23,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 04:47:23,690 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:47:23,692 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-02-24 04:47:23,695 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:47:23,698 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-02-24 04:47:23,706 WARN L141 QuantifierPusher]: treesize reduction 4, result has 83.3 percent of original size [2021-02-24 04:47:23,709 INFO L723 QuantifierPusher]: Distributing 3 disjuncts over 3 conjuncts [2021-02-24 04:47:23,711 INFO L730 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:47:23,712 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:47:23,714 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:47:23,718 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-02-24 04:47:23,720 WARN L147 QuantifierPusher]: treesize reduction 4, result has 83.3 percent of original size 20 [2021-02-24 04:47:23,724 WARN L141 QuantifierPusher]: treesize reduction 11, result has 82.0 percent of original size [2021-02-24 04:47:23,728 WARN L147 QuantifierPusher]: treesize reduction 11, result has 82.0 percent of original size 50 [2021-02-24 04:47:23,729 INFO L206 tedInterpolationCore]: Starting analysis with loop acceleration approximation PRECISE [2021-02-24 04:47:23,730 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:47:23,733 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-02-24 04:47:23,735 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:47:23,738 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-02-24 04:47:23,752 WARN L141 QuantifierPusher]: treesize reduction 4, result has 83.3 percent of original size [2021-02-24 04:47:23,756 INFO L723 QuantifierPusher]: Distributing 3 disjuncts over 3 conjuncts [2021-02-24 04:47:23,764 INFO L730 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:47:23,764 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:47:23,766 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:47:23,778 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-02-24 04:47:23,779 WARN L147 QuantifierPusher]: treesize reduction 4, result has 83.3 percent of original size 20 [2021-02-24 04:47:23,784 WARN L141 QuantifierPusher]: treesize reduction 11, result has 82.0 percent of original size [2021-02-24 04:47:23,787 WARN L147 QuantifierPusher]: treesize reduction 11, result has 82.0 percent of original size 50 [2021-02-24 04:47:23,788 INFO L206 tedInterpolationCore]: Starting analysis with loop acceleration approximation PRECISE [2021-02-24 04:47:23,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:47:23,850 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:47:23,851 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:47:23,852 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:47:23,853 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:47:23,856 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:47:23,857 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:47:23,862 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:47:23,862 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:47:23,869 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:47:23,870 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:47:23,876 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:47:23,877 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:47:23,890 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:47:23,891 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:47:23,925 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 04:47:23,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:47:23,958 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:47:23,962 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:47:23,974 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-24 04:47:23,982 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:47:23,987 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:47:23,988 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:47:23,989 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-02-24 04:47:23,997 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-02-24 04:47:23,999 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:47:24,000 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:47:24,010 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:47:24,012 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-02-24 04:47:24,032 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:47:24,034 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:47:24,034 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:47:24,035 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-02-24 04:47:24,040 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-02-24 04:47:24,073 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:47:24,076 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:47:24,077 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:47:24,078 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-02-24 04:47:24,079 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-02-24 04:47:24,084 WARN L860 $PredicateComparison]: unable to prove that (and (< c_main_~i~0 5) (exists ((|v_#memory_int_30| (Array Int (Array Int Int))) (|v_main_#t~nondet4_19| Int)) (and (<= |v_main_#t~nondet4_19| 127) (= |c_#memory_int| (store |v_#memory_int_30| |c_main_~#string_A~0.base| (store (select |v_#memory_int_30| |c_main_~#string_A~0.base|) (+ c_main_~i~0 |c_main_~#string_A~0.offset|) |v_main_#t~nondet4_19|))) (<= 0 (+ |v_main_#t~nondet4_19| 128))))) is different from true [2021-02-24 04:47:24,087 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:47:24,089 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:47:24,091 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:47:24,091 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-02-24 04:47:24,095 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-02-24 04:47:24,123 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:47:24,142 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:47:24,143 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:47:24,144 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-02-24 04:47:24,145 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-02-24 04:47:24,174 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:47:24,177 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:47:24,178 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:47:24,179 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-02-24 04:47:24,180 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-02-24 04:47:24,184 WARN L860 $PredicateComparison]: unable to prove that (and (exists ((|v_#memory_int_30| (Array Int (Array Int Int))) (|v_main_#t~nondet4_19| Int)) (and (<= |v_main_#t~nondet4_19| 127) (<= 0 (+ |v_main_#t~nondet4_19| 128)) (= |c_#memory_int| (store |v_#memory_int_30| |c_main_~#string_A~0.base| (store (select |v_#memory_int_30| |c_main_~#string_A~0.base|) (+ c_main_~i~0 |c_main_~#string_A~0.offset| (- 1)) |v_main_#t~nondet4_19|))))) (< c_main_~i~0 6)) is different from true [2021-02-24 04:47:24,186 WARN L141 QuantifierPusher]: treesize reduction 3, result has 90.3 percent of original size [2021-02-24 04:47:24,187 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:47:24,188 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:47:24,189 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-02-24 04:47:24,190 WARN L147 QuantifierPusher]: treesize reduction 3, result has 90.3 percent of original size 28 [2021-02-24 04:47:24,193 WARN L860 $PredicateComparison]: unable to prove that (and (< c_main_~i~0 5) (exists ((|v_#memory_int_30| (Array Int (Array Int Int))) (|v_main_#t~nondet4_19| Int)) (and (<= |v_main_#t~nondet4_19| 127) (<= 0 (+ |v_main_#t~nondet4_19| 128)) (= |c_#memory_int| (store |v_#memory_int_30| |c_main_~#string_A~0.base| (store (select |v_#memory_int_30| |c_main_~#string_A~0.base|) (+ c_main_~i~0 |c_main_~#string_A~0.offset| (- 1)) |v_main_#t~nondet4_19|)))))) is different from true [2021-02-24 04:47:24,195 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:47:24,196 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:47:24,197 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:47:24,198 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-02-24 04:47:24,199 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-02-24 04:47:24,240 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:47:24,243 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:47:24,244 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:47:24,245 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-02-24 04:47:24,246 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-02-24 04:47:24,294 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:47:24,297 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:47:24,299 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:47:24,300 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-02-24 04:47:24,301 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-02-24 04:47:24,306 WARN L860 $PredicateComparison]: unable to prove that (and (< c_main_~i~0 5) (exists ((|v_#memory_int_30| (Array Int (Array Int Int))) (|v_main_#t~nondet4_20| Int) (|v_main_#t~nondet4_19| Int)) (and (= (store |v_#memory_int_30| |c_main_~#string_A~0.base| (store (store (select |v_#memory_int_30| |c_main_~#string_A~0.base|) (+ c_main_~i~0 |c_main_~#string_A~0.offset| (- 1)) |v_main_#t~nondet4_19|) (+ c_main_~i~0 |c_main_~#string_A~0.offset|) |v_main_#t~nondet4_20|)) |c_#memory_int|) (<= |v_main_#t~nondet4_19| 127) (<= 0 (+ |v_main_#t~nondet4_20| 128)) (<= 0 (+ |v_main_#t~nondet4_19| 128)) (<= |v_main_#t~nondet4_20| 127)))) is different from true [2021-02-24 04:47:24,308 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:47:24,310 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:47:24,311 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:47:24,313 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-02-24 04:47:24,314 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-02-24 04:47:24,362 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:47:24,368 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:47:24,374 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:47:24,375 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-02-24 04:47:24,377 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-02-24 04:47:24,422 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:47:24,428 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:47:24,429 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:47:24,430 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-02-24 04:47:24,431 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-02-24 04:47:24,436 WARN L860 $PredicateComparison]: unable to prove that (and (exists ((|v_#memory_int_30| (Array Int (Array Int Int))) (|v_main_#t~nondet4_20| Int) (|v_main_#t~nondet4_19| Int)) (and (= |c_#memory_int| (store |v_#memory_int_30| |c_main_~#string_A~0.base| (store (store (select |v_#memory_int_30| |c_main_~#string_A~0.base|) (+ c_main_~i~0 |c_main_~#string_A~0.offset| (- 2)) |v_main_#t~nondet4_19|) (+ c_main_~i~0 |c_main_~#string_A~0.offset| (- 1)) |v_main_#t~nondet4_20|))) (<= |v_main_#t~nondet4_19| 127) (<= 0 (+ |v_main_#t~nondet4_20| 128)) (<= 0 (+ |v_main_#t~nondet4_19| 128)) (<= |v_main_#t~nondet4_20| 127))) (< c_main_~i~0 6)) is different from true [2021-02-24 04:47:24,437 WARN L141 QuantifierPusher]: treesize reduction 7, result has 12.5 percent of original size [2021-02-24 04:47:24,437 WARN L147 QuantifierPusher]: treesize reduction 7, result has 12.5 percent of original size 1 [2021-02-24 04:47:24,438 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1463666754] [2021-02-24 04:47:24,438 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-24 04:47:24,438 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2021-02-24 04:47:24,439 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2045332816] [2021-02-24 04:47:24,439 INFO L460 AbstractCegarLoop]: Interpolant automaton has 22 states [2021-02-24 04:47:24,439 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 04:47:24,440 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2021-02-24 04:47:24,440 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=217, Unknown=17, NotChecked=170, Total=462 [2021-02-24 04:47:24,441 INFO L87 Difference]: Start difference. First operand 97 states and 102 transitions. Second operand 22 states. [2021-02-24 04:47:25,766 WARN L860 $PredicateComparison]: unable to prove that (and (exists ((|v_#memory_int_30| (Array Int (Array Int Int))) (|v_main_#t~nondet4_20| Int) (|v_main_#t~nondet4_19| Int)) (and (= |c_#memory_int| (store |v_#memory_int_30| |c_main_~#string_A~0.base| (store (store (select |v_#memory_int_30| |c_main_~#string_A~0.base|) (+ c_main_~i~0 |c_main_~#string_A~0.offset| (- 2)) |v_main_#t~nondet4_19|) (+ c_main_~i~0 |c_main_~#string_A~0.offset| (- 1)) |v_main_#t~nondet4_20|))) (<= |v_main_#t~nondet4_19| 127) (<= 0 (+ |v_main_#t~nondet4_20| 128)) (<= 0 (+ |v_main_#t~nondet4_19| 128)) (<= |v_main_#t~nondet4_20| 127))) (< c_main_~i~0 5) (exists ((|v_#memory_int_30| (Array Int (Array Int Int))) (|v_main_#t~nondet4_19| Int)) (and (<= |v_main_#t~nondet4_19| 127) (<= 0 (+ |v_main_#t~nondet4_19| 128)) (= |c_#memory_int| (store |v_#memory_int_30| |c_main_~#string_A~0.base| (store (select |v_#memory_int_30| |c_main_~#string_A~0.base|) (+ c_main_~i~0 |c_main_~#string_A~0.offset| (- 1)) |v_main_#t~nondet4_19|))))) (< c_main_~i~0 6)) is different from true [2021-02-24 04:47:25,787 WARN L860 $PredicateComparison]: unable to prove that (and (< c_main_~i~0 5) (exists ((|v_#memory_int_30| (Array Int (Array Int Int))) (|v_main_#t~nondet4_19| Int)) (and (<= |v_main_#t~nondet4_19| 127) (= |c_#memory_int| (store |v_#memory_int_30| |c_main_~#string_A~0.base| (store (select |v_#memory_int_30| |c_main_~#string_A~0.base|) (+ c_main_~i~0 |c_main_~#string_A~0.offset|) |v_main_#t~nondet4_19|))) (<= 0 (+ |v_main_#t~nondet4_19| 128)))) (exists ((|v_#memory_int_30| (Array Int (Array Int Int))) (|v_main_#t~nondet4_20| Int) (|v_main_#t~nondet4_19| Int)) (and (= (store |v_#memory_int_30| |c_main_~#string_A~0.base| (store (store (select |v_#memory_int_30| |c_main_~#string_A~0.base|) (+ c_main_~i~0 |c_main_~#string_A~0.offset| (- 1)) |v_main_#t~nondet4_19|) (+ c_main_~i~0 |c_main_~#string_A~0.offset|) |v_main_#t~nondet4_20|)) |c_#memory_int|) (<= |v_main_#t~nondet4_19| 127) (<= 0 (+ |v_main_#t~nondet4_20| 128)) (<= 0 (+ |v_main_#t~nondet4_19| 128)) (<= |v_main_#t~nondet4_20| 127)))) is different from true [2021-02-24 04:47:26,376 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 04:47:26,376 INFO L93 Difference]: Finished difference Result 186 states and 198 transitions. [2021-02-24 04:47:26,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-02-24 04:47:26,377 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 73 [2021-02-24 04:47:26,378 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 04:47:26,380 INFO L225 Difference]: With dead ends: 186 [2021-02-24 04:47:26,380 INFO L226 Difference]: Without dead ends: 123 [2021-02-24 04:47:26,382 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 25 SyntacticMatches, 1 SemanticMatches, 47 ConstructedPredicates, 7 IntricatePredicates, 0 DeprecatedPredicates, 382 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=238, Invalid=1330, Unknown=182, NotChecked=602, Total=2352 [2021-02-24 04:47:26,383 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123 states. [2021-02-24 04:47:26,400 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123 to 111. [2021-02-24 04:47:26,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 111 states. [2021-02-24 04:47:26,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 116 transitions. [2021-02-24 04:47:26,402 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 116 transitions. Word has length 73 [2021-02-24 04:47:26,403 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 04:47:26,403 INFO L480 AbstractCegarLoop]: Abstraction has 111 states and 116 transitions. [2021-02-24 04:47:26,403 INFO L481 AbstractCegarLoop]: Interpolant automaton has 22 states. [2021-02-24 04:47:26,403 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 116 transitions. [2021-02-24 04:47:26,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2021-02-24 04:47:26,405 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 04:47:26,405 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-24 04:47:26,406 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-02-24 04:47:26,406 INFO L428 AbstractCegarLoop]: === Iteration 5 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 04:47:26,406 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 04:47:26,406 INFO L82 PathProgramCache]: Analyzing trace with hash -1628250322, now seen corresponding path program 3 times [2021-02-24 04:47:26,407 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 04:47:26,407 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [286281907] [2021-02-24 04:47:26,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 04:47:26,415 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:47:26,417 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-02-24 04:47:26,419 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:47:26,421 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-02-24 04:47:26,428 WARN L141 QuantifierPusher]: treesize reduction 4, result has 83.3 percent of original size [2021-02-24 04:47:26,430 INFO L723 QuantifierPusher]: Distributing 3 disjuncts over 3 conjuncts [2021-02-24 04:47:26,432 INFO L730 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:47:26,432 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:47:26,434 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:47:26,436 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-02-24 04:47:26,438 WARN L147 QuantifierPusher]: treesize reduction 4, result has 83.3 percent of original size 20 [2021-02-24 04:47:26,441 WARN L141 QuantifierPusher]: treesize reduction 11, result has 82.0 percent of original size [2021-02-24 04:47:26,443 WARN L147 QuantifierPusher]: treesize reduction 11, result has 82.0 percent of original size 50 [2021-02-24 04:47:26,444 INFO L206 tedInterpolationCore]: Starting analysis with loop acceleration approximation PRECISE [2021-02-24 04:47:26,445 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:47:26,447 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-02-24 04:47:26,448 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:47:26,450 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-02-24 04:47:26,458 WARN L141 QuantifierPusher]: treesize reduction 4, result has 83.3 percent of original size [2021-02-24 04:47:26,459 INFO L723 QuantifierPusher]: Distributing 3 disjuncts over 3 conjuncts [2021-02-24 04:47:26,461 INFO L730 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:47:26,461 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:47:26,462 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:47:26,465 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-02-24 04:47:26,467 WARN L147 QuantifierPusher]: treesize reduction 4, result has 83.3 percent of original size 20 [2021-02-24 04:47:26,470 WARN L141 QuantifierPusher]: treesize reduction 11, result has 82.0 percent of original size [2021-02-24 04:47:26,472 WARN L147 QuantifierPusher]: treesize reduction 11, result has 82.0 percent of original size 50 [2021-02-24 04:47:26,473 INFO L206 tedInterpolationCore]: Starting analysis with loop acceleration approximation PRECISE [2021-02-24 04:47:26,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:47:26,593 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:47:26,594 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:47:26,595 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:47:26,595 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:47:26,599 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:47:26,599 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:47:26,604 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:47:26,604 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:47:26,609 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:47:26,610 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:47:26,618 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:47:26,619 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:47:26,626 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:47:26,627 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:47:26,633 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:47:26,634 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:47:26,643 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:47:26,644 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:47:26,676 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 04:47:26,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:47:26,684 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:47:26,685 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:47:26,690 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-24 04:47:26,692 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:47:26,694 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:47:26,696 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:47:26,697 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-02-24 04:47:26,697 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-02-24 04:47:26,699 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:47:26,700 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:47:26,711 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:47:26,711 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-02-24 04:47:26,727 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:47:26,728 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:47:26,728 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:47:26,729 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-02-24 04:47:26,730 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-02-24 04:47:26,756 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:47:26,757 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:47:26,758 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:47:26,759 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-02-24 04:47:26,760 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-02-24 04:47:26,764 WARN L860 $PredicateComparison]: unable to prove that (and (exists ((|v_main_#t~nondet4_30| Int) (|v_#memory_int_41| (Array Int (Array Int Int)))) (and (<= 0 (+ |v_main_#t~nondet4_30| 128)) (= |c_#memory_int| (store |v_#memory_int_41| |c_main_~#string_A~0.base| (store (select |v_#memory_int_41| |c_main_~#string_A~0.base|) (+ c_main_~i~0 |c_main_~#string_A~0.offset|) |v_main_#t~nondet4_30|))) (<= |v_main_#t~nondet4_30| 127))) (< c_main_~i~0 5)) is different from true [2021-02-24 04:47:26,765 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:47:26,766 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:47:26,767 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:47:26,768 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-02-24 04:47:26,769 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-02-24 04:47:26,796 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:47:26,799 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:47:26,803 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:47:26,804 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-02-24 04:47:26,804 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-02-24 04:47:26,834 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:47:26,837 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:47:26,838 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:47:26,839 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-02-24 04:47:26,840 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-02-24 04:47:26,844 WARN L860 $PredicateComparison]: unable to prove that (and (exists ((|v_main_#t~nondet4_30| Int) (|v_#memory_int_41| (Array Int (Array Int Int)))) (and (<= 0 (+ |v_main_#t~nondet4_30| 128)) (= |c_#memory_int| (store |v_#memory_int_41| |c_main_~#string_A~0.base| (store (select |v_#memory_int_41| |c_main_~#string_A~0.base|) (+ c_main_~i~0 |c_main_~#string_A~0.offset| (- 1)) |v_main_#t~nondet4_30|))) (<= |v_main_#t~nondet4_30| 127))) (< c_main_~i~0 6)) is different from true [2021-02-24 04:47:26,845 WARN L141 QuantifierPusher]: treesize reduction 3, result has 90.3 percent of original size [2021-02-24 04:47:26,846 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:47:26,847 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:47:26,848 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-02-24 04:47:26,848 WARN L147 QuantifierPusher]: treesize reduction 3, result has 90.3 percent of original size 28 [2021-02-24 04:47:26,852 WARN L860 $PredicateComparison]: unable to prove that (and (< c_main_~i~0 5) (exists ((|v_main_#t~nondet4_30| Int) (|v_#memory_int_41| (Array Int (Array Int Int)))) (and (<= 0 (+ |v_main_#t~nondet4_30| 128)) (= |c_#memory_int| (store |v_#memory_int_41| |c_main_~#string_A~0.base| (store (select |v_#memory_int_41| |c_main_~#string_A~0.base|) (+ c_main_~i~0 |c_main_~#string_A~0.offset| (- 1)) |v_main_#t~nondet4_30|))) (<= |v_main_#t~nondet4_30| 127)))) is different from true [2021-02-24 04:47:26,853 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:47:26,854 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:47:26,855 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:47:26,855 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-02-24 04:47:26,857 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-02-24 04:47:26,900 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:47:26,902 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:47:26,903 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:47:26,904 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-02-24 04:47:26,905 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-02-24 04:47:26,966 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:47:26,968 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:47:26,971 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:47:26,972 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-02-24 04:47:26,974 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-02-24 04:47:26,978 WARN L860 $PredicateComparison]: unable to prove that (and (< c_main_~i~0 5) (exists ((|v_main_#t~nondet4_30| Int) (|v_main_#t~nondet4_31| Int) (|v_#memory_int_41| (Array Int (Array Int Int)))) (and (<= 0 (+ |v_main_#t~nondet4_30| 128)) (<= |v_main_#t~nondet4_31| 127) (= |c_#memory_int| (store |v_#memory_int_41| |c_main_~#string_A~0.base| (store (store (select |v_#memory_int_41| |c_main_~#string_A~0.base|) (+ c_main_~i~0 |c_main_~#string_A~0.offset| (- 1)) |v_main_#t~nondet4_30|) (+ c_main_~i~0 |c_main_~#string_A~0.offset|) |v_main_#t~nondet4_31|))) (<= |v_main_#t~nondet4_30| 127) (<= 0 (+ |v_main_#t~nondet4_31| 128))))) is different from true [2021-02-24 04:47:26,980 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:47:26,981 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:47:26,982 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:47:26,983 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-02-24 04:47:26,984 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-02-24 04:47:27,027 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:47:27,031 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:47:27,035 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:47:27,036 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-02-24 04:47:27,037 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-02-24 04:47:27,082 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:47:27,085 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:47:27,087 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:47:27,088 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-02-24 04:47:27,089 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-02-24 04:47:27,093 WARN L860 $PredicateComparison]: unable to prove that (and (< c_main_~i~0 6) (exists ((|v_main_#t~nondet4_30| Int) (|v_main_#t~nondet4_31| Int) (|v_#memory_int_41| (Array Int (Array Int Int)))) (and (<= 0 (+ |v_main_#t~nondet4_30| 128)) (<= |v_main_#t~nondet4_31| 127) (= |c_#memory_int| (store |v_#memory_int_41| |c_main_~#string_A~0.base| (store (store (select |v_#memory_int_41| |c_main_~#string_A~0.base|) (+ c_main_~i~0 |c_main_~#string_A~0.offset| (- 2)) |v_main_#t~nondet4_30|) (+ c_main_~i~0 |c_main_~#string_A~0.offset| (- 1)) |v_main_#t~nondet4_31|))) (<= |v_main_#t~nondet4_30| 127) (<= 0 (+ |v_main_#t~nondet4_31| 128))))) is different from true [2021-02-24 04:47:27,095 WARN L141 QuantifierPusher]: treesize reduction 3, result has 93.3 percent of original size [2021-02-24 04:47:27,097 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:47:27,098 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:47:27,099 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-02-24 04:47:27,100 WARN L147 QuantifierPusher]: treesize reduction 3, result has 93.3 percent of original size 42 [2021-02-24 04:47:27,104 WARN L860 $PredicateComparison]: unable to prove that (and (< c_main_~i~0 5) (exists ((|v_main_#t~nondet4_30| Int) (|v_main_#t~nondet4_31| Int) (|v_#memory_int_41| (Array Int (Array Int Int)))) (and (<= 0 (+ |v_main_#t~nondet4_30| 128)) (<= |v_main_#t~nondet4_31| 127) (= |c_#memory_int| (store |v_#memory_int_41| |c_main_~#string_A~0.base| (store (store (select |v_#memory_int_41| |c_main_~#string_A~0.base|) (+ c_main_~i~0 |c_main_~#string_A~0.offset| (- 2)) |v_main_#t~nondet4_30|) (+ c_main_~i~0 |c_main_~#string_A~0.offset| (- 1)) |v_main_#t~nondet4_31|))) (<= |v_main_#t~nondet4_30| 127) (<= 0 (+ |v_main_#t~nondet4_31| 128))))) is different from true [2021-02-24 04:47:27,106 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:47:27,107 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:47:27,108 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:47:27,108 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-02-24 04:47:27,110 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-02-24 04:47:27,173 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:47:27,176 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:47:27,179 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:47:27,180 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-02-24 04:47:27,182 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 64 [2021-02-24 04:47:27,268 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:47:27,271 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:47:27,272 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:47:27,273 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-02-24 04:47:27,274 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 56 [2021-02-24 04:47:27,279 WARN L860 $PredicateComparison]: unable to prove that (and (< c_main_~i~0 5) (exists ((|v_main_#t~nondet4_30| Int) (|v_#memory_int_41| (Array Int (Array Int Int))) (|v_main_#t~nondet4_31| Int) (|v_main_#t~nondet4_32| Int)) (and (<= 0 (+ |v_main_#t~nondet4_30| 128)) (<= 0 (+ |v_main_#t~nondet4_32| 128)) (= |c_#memory_int| (store |v_#memory_int_41| |c_main_~#string_A~0.base| (store (store (store (select |v_#memory_int_41| |c_main_~#string_A~0.base|) (+ c_main_~i~0 |c_main_~#string_A~0.offset| (- 2)) |v_main_#t~nondet4_30|) (+ c_main_~i~0 |c_main_~#string_A~0.offset| (- 1)) |v_main_#t~nondet4_31|) (+ c_main_~i~0 |c_main_~#string_A~0.offset|) |v_main_#t~nondet4_32|))) (<= |v_main_#t~nondet4_31| 127) (<= |v_main_#t~nondet4_32| 127) (<= |v_main_#t~nondet4_30| 127) (<= 0 (+ |v_main_#t~nondet4_31| 128))))) is different from true [2021-02-24 04:47:27,281 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:47:27,283 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:47:27,284 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:47:27,285 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-02-24 04:47:27,288 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 58 [2021-02-24 04:47:27,351 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:47:27,355 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:47:27,356 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:47:27,357 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-02-24 04:47:27,358 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 64 [2021-02-24 04:47:27,417 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:47:27,422 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:47:27,423 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:47:27,424 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-02-24 04:47:27,425 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-02-24 04:47:27,430 WARN L860 $PredicateComparison]: unable to prove that (and (< c_main_~i~0 6) (exists ((|v_main_#t~nondet4_30| Int) (|v_main_#t~nondet4_31| Int) (|v_#memory_int_41| (Array Int (Array Int Int))) (|v_main_#t~nondet4_32| Int)) (and (<= 0 (+ |v_main_#t~nondet4_30| 128)) (<= 0 (+ |v_main_#t~nondet4_32| 128)) (<= |v_main_#t~nondet4_31| 127) (<= |v_main_#t~nondet4_32| 127) (= |c_#memory_int| (store |v_#memory_int_41| |c_main_~#string_A~0.base| (store (store (store (select |v_#memory_int_41| |c_main_~#string_A~0.base|) (+ c_main_~i~0 |c_main_~#string_A~0.offset| (- 3)) |v_main_#t~nondet4_30|) (+ c_main_~i~0 |c_main_~#string_A~0.offset| (- 2)) |v_main_#t~nondet4_31|) (+ c_main_~i~0 |c_main_~#string_A~0.offset| (- 1)) |v_main_#t~nondet4_32|))) (<= |v_main_#t~nondet4_30| 127) (<= 0 (+ |v_main_#t~nondet4_31| 128))))) is different from true [2021-02-24 04:47:27,431 WARN L141 QuantifierPusher]: treesize reduction 7, result has 12.5 percent of original size [2021-02-24 04:47:27,431 WARN L147 QuantifierPusher]: treesize reduction 7, result has 12.5 percent of original size 1 [2021-02-24 04:47:27,432 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [286281907] [2021-02-24 04:47:27,432 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-24 04:47:27,432 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [31] imperfect sequences [] total 31 [2021-02-24 04:47:27,432 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1041414012] [2021-02-24 04:47:27,433 INFO L460 AbstractCegarLoop]: Interpolant automaton has 31 states [2021-02-24 04:47:27,433 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 04:47:27,433 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2021-02-24 04:47:27,434 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=88, Invalid=407, Unknown=43, NotChecked=392, Total=930 [2021-02-24 04:47:27,434 INFO L87 Difference]: Start difference. First operand 111 states and 116 transitions. Second operand 31 states. [2021-02-24 04:47:30,160 WARN L860 $PredicateComparison]: unable to prove that (and (< c_main_~i~0 5) (exists ((|v_main_#t~nondet4_30| Int) (|v_#memory_int_41| (Array Int (Array Int Int)))) (and (<= 0 (+ |v_main_#t~nondet4_30| 128)) (= |c_#memory_int| (store |v_#memory_int_41| |c_main_~#string_A~0.base| (store (select |v_#memory_int_41| |c_main_~#string_A~0.base|) (+ c_main_~i~0 |c_main_~#string_A~0.offset| (- 1)) |v_main_#t~nondet4_30|))) (<= |v_main_#t~nondet4_30| 127))) (< c_main_~i~0 6) (exists ((|v_main_#t~nondet4_30| Int) (|v_main_#t~nondet4_31| Int) (|v_#memory_int_41| (Array Int (Array Int Int)))) (and (<= 0 (+ |v_main_#t~nondet4_30| 128)) (<= |v_main_#t~nondet4_31| 127) (= |c_#memory_int| (store |v_#memory_int_41| |c_main_~#string_A~0.base| (store (store (select |v_#memory_int_41| |c_main_~#string_A~0.base|) (+ c_main_~i~0 |c_main_~#string_A~0.offset| (- 2)) |v_main_#t~nondet4_30|) (+ c_main_~i~0 |c_main_~#string_A~0.offset| (- 1)) |v_main_#t~nondet4_31|))) (<= |v_main_#t~nondet4_30| 127) (<= 0 (+ |v_main_#t~nondet4_31| 128)))) (exists ((|v_main_#t~nondet4_30| Int) (|v_main_#t~nondet4_31| Int) (|v_#memory_int_41| (Array Int (Array Int Int))) (|v_main_#t~nondet4_32| Int)) (and (<= 0 (+ |v_main_#t~nondet4_30| 128)) (<= 0 (+ |v_main_#t~nondet4_32| 128)) (<= |v_main_#t~nondet4_31| 127) (<= |v_main_#t~nondet4_32| 127) (= |c_#memory_int| (store |v_#memory_int_41| |c_main_~#string_A~0.base| (store (store (store (select |v_#memory_int_41| |c_main_~#string_A~0.base|) (+ c_main_~i~0 |c_main_~#string_A~0.offset| (- 3)) |v_main_#t~nondet4_30|) (+ c_main_~i~0 |c_main_~#string_A~0.offset| (- 2)) |v_main_#t~nondet4_31|) (+ c_main_~i~0 |c_main_~#string_A~0.offset| (- 1)) |v_main_#t~nondet4_32|))) (<= |v_main_#t~nondet4_30| 127) (<= 0 (+ |v_main_#t~nondet4_31| 128))))) is different from true [2021-02-24 04:47:30,167 WARN L860 $PredicateComparison]: unable to prove that (and (< c_main_~i~0 5) (exists ((|v_main_#t~nondet4_30| Int) (|v_#memory_int_41| (Array Int (Array Int Int)))) (and (<= 0 (+ |v_main_#t~nondet4_30| 128)) (= |c_#memory_int| (store |v_#memory_int_41| |c_main_~#string_A~0.base| (store (select |v_#memory_int_41| |c_main_~#string_A~0.base|) (+ c_main_~i~0 |c_main_~#string_A~0.offset| (- 1)) |v_main_#t~nondet4_30|))) (<= |v_main_#t~nondet4_30| 127))) (exists ((|v_main_#t~nondet4_30| Int) (|v_main_#t~nondet4_31| Int) (|v_#memory_int_41| (Array Int (Array Int Int)))) (and (<= 0 (+ |v_main_#t~nondet4_30| 128)) (<= |v_main_#t~nondet4_31| 127) (= |c_#memory_int| (store |v_#memory_int_41| |c_main_~#string_A~0.base| (store (store (select |v_#memory_int_41| |c_main_~#string_A~0.base|) (+ c_main_~i~0 |c_main_~#string_A~0.offset| (- 2)) |v_main_#t~nondet4_30|) (+ c_main_~i~0 |c_main_~#string_A~0.offset| (- 1)) |v_main_#t~nondet4_31|))) (<= |v_main_#t~nondet4_30| 127) (<= 0 (+ |v_main_#t~nondet4_31| 128))))) is different from true [2021-02-24 04:47:30,438 WARN L860 $PredicateComparison]: unable to prove that (and (exists ((|v_main_#t~nondet4_30| Int) (|v_#memory_int_41| (Array Int (Array Int Int)))) (and (<= 0 (+ |v_main_#t~nondet4_30| 128)) (= |c_#memory_int| (store |v_#memory_int_41| |c_main_~#string_A~0.base| (store (select |v_#memory_int_41| |c_main_~#string_A~0.base|) (+ c_main_~i~0 |c_main_~#string_A~0.offset|) |v_main_#t~nondet4_30|))) (<= |v_main_#t~nondet4_30| 127))) (< c_main_~i~0 5) (exists ((|v_main_#t~nondet4_30| Int) (|v_main_#t~nondet4_31| Int) (|v_#memory_int_41| (Array Int (Array Int Int)))) (and (<= 0 (+ |v_main_#t~nondet4_30| 128)) (<= |v_main_#t~nondet4_31| 127) (= |c_#memory_int| (store |v_#memory_int_41| |c_main_~#string_A~0.base| (store (store (select |v_#memory_int_41| |c_main_~#string_A~0.base|) (+ c_main_~i~0 |c_main_~#string_A~0.offset| (- 1)) |v_main_#t~nondet4_30|) (+ c_main_~i~0 |c_main_~#string_A~0.offset|) |v_main_#t~nondet4_31|))) (<= |v_main_#t~nondet4_30| 127) (<= 0 (+ |v_main_#t~nondet4_31| 128)))) (exists ((|v_main_#t~nondet4_30| Int) (|v_#memory_int_41| (Array Int (Array Int Int))) (|v_main_#t~nondet4_31| Int) (|v_main_#t~nondet4_32| Int)) (and (<= 0 (+ |v_main_#t~nondet4_30| 128)) (<= 0 (+ |v_main_#t~nondet4_32| 128)) (= |c_#memory_int| (store |v_#memory_int_41| |c_main_~#string_A~0.base| (store (store (store (select |v_#memory_int_41| |c_main_~#string_A~0.base|) (+ c_main_~i~0 |c_main_~#string_A~0.offset| (- 2)) |v_main_#t~nondet4_30|) (+ c_main_~i~0 |c_main_~#string_A~0.offset| (- 1)) |v_main_#t~nondet4_31|) (+ c_main_~i~0 |c_main_~#string_A~0.offset|) |v_main_#t~nondet4_32|))) (<= |v_main_#t~nondet4_31| 127) (<= |v_main_#t~nondet4_32| 127) (<= |v_main_#t~nondet4_30| 127) (<= 0 (+ |v_main_#t~nondet4_31| 128))))) is different from true [2021-02-24 04:47:30,653 WARN L860 $PredicateComparison]: unable to prove that (and (exists ((|v_main_#t~nondet4_30| Int) (|v_#memory_int_41| (Array Int (Array Int Int)))) (and (<= 0 (+ |v_main_#t~nondet4_30| 128)) (= |c_#memory_int| (store |v_#memory_int_41| |c_main_~#string_A~0.base| (store (select |v_#memory_int_41| |c_main_~#string_A~0.base|) (+ c_main_~i~0 |c_main_~#string_A~0.offset| (- 1)) |v_main_#t~nondet4_30|))) (<= |v_main_#t~nondet4_30| 127))) (< c_main_~i~0 6) (exists ((|v_main_#t~nondet4_30| Int) (|v_main_#t~nondet4_31| Int) (|v_#memory_int_41| (Array Int (Array Int Int)))) (and (<= 0 (+ |v_main_#t~nondet4_30| 128)) (<= |v_main_#t~nondet4_31| 127) (= |c_#memory_int| (store |v_#memory_int_41| |c_main_~#string_A~0.base| (store (store (select |v_#memory_int_41| |c_main_~#string_A~0.base|) (+ c_main_~i~0 |c_main_~#string_A~0.offset| (- 2)) |v_main_#t~nondet4_30|) (+ c_main_~i~0 |c_main_~#string_A~0.offset| (- 1)) |v_main_#t~nondet4_31|))) (<= |v_main_#t~nondet4_30| 127) (<= 0 (+ |v_main_#t~nondet4_31| 128)))) (exists ((|v_main_#t~nondet4_30| Int) (|v_main_#t~nondet4_31| Int) (|v_#memory_int_41| (Array Int (Array Int Int))) (|v_main_#t~nondet4_32| Int)) (and (<= 0 (+ |v_main_#t~nondet4_30| 128)) (<= 0 (+ |v_main_#t~nondet4_32| 128)) (<= |v_main_#t~nondet4_31| 127) (<= |v_main_#t~nondet4_32| 127) (= |c_#memory_int| (store |v_#memory_int_41| |c_main_~#string_A~0.base| (store (store (store (select |v_#memory_int_41| |c_main_~#string_A~0.base|) (+ c_main_~i~0 |c_main_~#string_A~0.offset| (- 3)) |v_main_#t~nondet4_30|) (+ c_main_~i~0 |c_main_~#string_A~0.offset| (- 2)) |v_main_#t~nondet4_31|) (+ c_main_~i~0 |c_main_~#string_A~0.offset| (- 1)) |v_main_#t~nondet4_32|))) (<= |v_main_#t~nondet4_30| 127) (<= 0 (+ |v_main_#t~nondet4_31| 128))))) is different from true [2021-02-24 04:47:31,245 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 04:47:31,245 INFO L93 Difference]: Finished difference Result 207 states and 219 transitions. [2021-02-24 04:47:31,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2021-02-24 04:47:31,245 INFO L78 Accepts]: Start accepts. Automaton has 31 states. Word has length 87 [2021-02-24 04:47:31,246 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 04:47:31,247 INFO L225 Difference]: With dead ends: 207 [2021-02-24 04:47:31,247 INFO L226 Difference]: Without dead ends: 137 [2021-02-24 04:47:31,250 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 24 SyntacticMatches, 2 SemanticMatches, 67 ConstructedPredicates, 12 IntricatePredicates, 0 DeprecatedPredicates, 765 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=374, Invalid=2548, Unknown=318, NotChecked=1452, Total=4692 [2021-02-24 04:47:31,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137 states. [2021-02-24 04:47:31,290 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137 to 125. [2021-02-24 04:47:31,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 125 states. [2021-02-24 04:47:31,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 130 transitions. [2021-02-24 04:47:31,300 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 130 transitions. Word has length 87 [2021-02-24 04:47:31,303 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 04:47:31,303 INFO L480 AbstractCegarLoop]: Abstraction has 125 states and 130 transitions. [2021-02-24 04:47:31,303 INFO L481 AbstractCegarLoop]: Interpolant automaton has 31 states. [2021-02-24 04:47:31,303 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 130 transitions. [2021-02-24 04:47:31,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2021-02-24 04:47:31,307 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 04:47:31,308 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-24 04:47:31,308 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-02-24 04:47:31,313 INFO L428 AbstractCegarLoop]: === Iteration 6 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 04:47:31,314 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 04:47:31,314 INFO L82 PathProgramCache]: Analyzing trace with hash 419933347, now seen corresponding path program 4 times [2021-02-24 04:47:31,314 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 04:47:31,314 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [800418430] [2021-02-24 04:47:31,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 04:47:31,326 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:47:31,330 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-02-24 04:47:31,332 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:47:31,335 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-02-24 04:47:31,346 WARN L141 QuantifierPusher]: treesize reduction 4, result has 83.3 percent of original size [2021-02-24 04:47:31,347 INFO L723 QuantifierPusher]: Distributing 3 disjuncts over 3 conjuncts [2021-02-24 04:47:31,350 INFO L730 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:47:31,350 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:47:31,351 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:47:31,353 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-02-24 04:47:31,356 WARN L147 QuantifierPusher]: treesize reduction 4, result has 83.3 percent of original size 20 [2021-02-24 04:47:31,361 WARN L141 QuantifierPusher]: treesize reduction 11, result has 82.0 percent of original size [2021-02-24 04:47:31,364 WARN L147 QuantifierPusher]: treesize reduction 11, result has 82.0 percent of original size 50 [2021-02-24 04:47:31,365 INFO L206 tedInterpolationCore]: Starting analysis with loop acceleration approximation PRECISE [2021-02-24 04:47:31,366 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:47:31,367 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-02-24 04:47:31,369 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:47:31,371 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-02-24 04:47:31,377 WARN L141 QuantifierPusher]: treesize reduction 4, result has 83.3 percent of original size [2021-02-24 04:47:31,379 INFO L723 QuantifierPusher]: Distributing 3 disjuncts over 3 conjuncts [2021-02-24 04:47:31,382 INFO L730 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:47:31,382 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:47:31,385 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:47:31,393 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-02-24 04:47:31,394 WARN L147 QuantifierPusher]: treesize reduction 4, result has 83.3 percent of original size 20 [2021-02-24 04:47:31,397 WARN L141 QuantifierPusher]: treesize reduction 11, result has 82.0 percent of original size [2021-02-24 04:47:31,399 WARN L147 QuantifierPusher]: treesize reduction 11, result has 82.0 percent of original size 50 [2021-02-24 04:47:31,400 INFO L206 tedInterpolationCore]: Starting analysis with loop acceleration approximation PRECISE [2021-02-24 04:47:31,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:47:31,462 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:47:31,463 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:47:31,463 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:47:31,464 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:47:31,467 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:47:31,467 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:47:31,471 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:47:31,472 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:47:31,477 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:47:31,478 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:47:31,483 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:47:31,484 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:47:31,490 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:47:31,492 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:47:31,500 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:47:31,501 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:47:31,510 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:47:31,513 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:47:31,522 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:47:31,522 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:47:31,535 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:47:31,536 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:47:31,563 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 04:47:31,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:47:31,579 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:47:31,580 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:47:31,586 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-24 04:47:31,588 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:47:31,589 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:47:31,590 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:47:31,591 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-02-24 04:47:31,592 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-02-24 04:47:31,594 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:47:31,595 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:47:31,604 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:47:31,605 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-02-24 04:47:31,620 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:47:31,621 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:47:31,621 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:47:31,622 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-02-24 04:47:31,623 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-02-24 04:47:31,650 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:47:31,650 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:47:31,651 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:47:31,652 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-02-24 04:47:31,652 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-02-24 04:47:31,687 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:47:31,688 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:47:31,688 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:47:31,689 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-02-24 04:47:31,696 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-02-24 04:47:31,730 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:47:31,731 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:47:31,732 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:47:31,734 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-02-24 04:47:31,735 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-02-24 04:47:31,765 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:47:31,767 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:47:31,768 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:47:31,768 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-02-24 04:47:31,769 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-02-24 04:47:31,812 WARN L141 QuantifierPusher]: treesize reduction 3, result has 90.3 percent of original size [2021-02-24 04:47:31,813 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:47:31,814 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:47:31,815 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-02-24 04:47:31,816 WARN L147 QuantifierPusher]: treesize reduction 3, result has 90.3 percent of original size 28 [2021-02-24 04:47:31,819 WARN L860 $PredicateComparison]: unable to prove that (and (< c_main_~i~0 5) (exists ((|v_main_#t~nondet4_42| Int) (|v_#memory_int_53| (Array Int (Array Int Int)))) (and (= (store |v_#memory_int_53| |c_main_~#string_A~0.base| (store (select |v_#memory_int_53| |c_main_~#string_A~0.base|) (+ c_main_~i~0 |c_main_~#string_A~0.offset| (- 1)) |v_main_#t~nondet4_42|)) |c_#memory_int|) (<= 0 (+ |v_main_#t~nondet4_42| 128)) (<= |v_main_#t~nondet4_42| 127)))) is different from true [2021-02-24 04:47:31,820 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:47:31,821 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:47:31,822 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:47:31,823 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-02-24 04:47:31,823 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-02-24 04:47:31,870 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:47:31,872 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:47:31,875 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:47:31,876 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-02-24 04:47:31,877 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-02-24 04:47:31,936 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:47:31,937 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:47:31,941 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:47:31,942 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-02-24 04:47:31,943 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-02-24 04:47:31,947 WARN L860 $PredicateComparison]: unable to prove that (and (< c_main_~i~0 5) (exists ((|v_main_#t~nondet4_42| Int) (|v_#memory_int_53| (Array Int (Array Int Int))) (|v_main_#t~nondet4_43| Int)) (and (<= 0 (+ |v_main_#t~nondet4_42| 128)) (<= 0 (+ |v_main_#t~nondet4_43| 128)) (<= |v_main_#t~nondet4_43| 127) (<= |v_main_#t~nondet4_42| 127) (= (store |v_#memory_int_53| |c_main_~#string_A~0.base| (store (store (select |v_#memory_int_53| |c_main_~#string_A~0.base|) (+ c_main_~i~0 |c_main_~#string_A~0.offset| (- 1)) |v_main_#t~nondet4_42|) (+ c_main_~i~0 |c_main_~#string_A~0.offset|) |v_main_#t~nondet4_43|)) |c_#memory_int|)))) is different from true [2021-02-24 04:47:31,949 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:47:31,950 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:47:31,950 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:47:31,951 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-02-24 04:47:31,952 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-02-24 04:47:32,006 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:47:32,008 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:47:32,009 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:47:32,010 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-02-24 04:47:32,010 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-02-24 04:47:32,061 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:47:32,063 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:47:32,064 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:47:32,065 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-02-24 04:47:32,066 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-02-24 04:47:32,070 WARN L860 $PredicateComparison]: unable to prove that (and (exists ((|v_main_#t~nondet4_42| Int) (|v_#memory_int_53| (Array Int (Array Int Int))) (|v_main_#t~nondet4_43| Int)) (and (<= 0 (+ |v_main_#t~nondet4_42| 128)) (<= 0 (+ |v_main_#t~nondet4_43| 128)) (<= |v_main_#t~nondet4_43| 127) (<= |v_main_#t~nondet4_42| 127) (= |c_#memory_int| (store |v_#memory_int_53| |c_main_~#string_A~0.base| (store (store (select |v_#memory_int_53| |c_main_~#string_A~0.base|) (+ c_main_~i~0 |c_main_~#string_A~0.offset| (- 2)) |v_main_#t~nondet4_42|) (+ c_main_~i~0 |c_main_~#string_A~0.offset| (- 1)) |v_main_#t~nondet4_43|))))) (< c_main_~i~0 6)) is different from true [2021-02-24 04:47:32,072 WARN L141 QuantifierPusher]: treesize reduction 3, result has 93.3 percent of original size [2021-02-24 04:47:32,073 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:47:32,074 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:47:32,074 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-02-24 04:47:32,075 WARN L147 QuantifierPusher]: treesize reduction 3, result has 93.3 percent of original size 42 [2021-02-24 04:47:32,080 WARN L860 $PredicateComparison]: unable to prove that (and (exists ((|v_main_#t~nondet4_42| Int) (|v_#memory_int_53| (Array Int (Array Int Int))) (|v_main_#t~nondet4_43| Int)) (and (<= 0 (+ |v_main_#t~nondet4_42| 128)) (<= 0 (+ |v_main_#t~nondet4_43| 128)) (<= |v_main_#t~nondet4_43| 127) (<= |v_main_#t~nondet4_42| 127) (= |c_#memory_int| (store |v_#memory_int_53| |c_main_~#string_A~0.base| (store (store (select |v_#memory_int_53| |c_main_~#string_A~0.base|) (+ c_main_~i~0 |c_main_~#string_A~0.offset| (- 2)) |v_main_#t~nondet4_42|) (+ c_main_~i~0 |c_main_~#string_A~0.offset| (- 1)) |v_main_#t~nondet4_43|))))) (< c_main_~i~0 5)) is different from true [2021-02-24 04:47:32,081 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:47:32,082 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:47:32,083 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:47:32,084 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-02-24 04:47:32,085 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-02-24 04:47:32,164 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:47:32,166 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:47:32,167 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:47:32,167 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-02-24 04:47:32,168 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 64 [2021-02-24 04:47:32,251 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:47:32,252 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:47:32,253 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:47:32,254 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-02-24 04:47:32,254 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 56 [2021-02-24 04:47:32,259 WARN L860 $PredicateComparison]: unable to prove that (and (< c_main_~i~0 5) (exists ((|v_main_#t~nondet4_42| Int) (|v_#memory_int_53| (Array Int (Array Int Int))) (|v_main_#t~nondet4_43| Int) (|v_main_#t~nondet4_44| Int)) (and (<= 0 (+ |v_main_#t~nondet4_42| 128)) (<= 0 (+ |v_main_#t~nondet4_44| 128)) (<= 0 (+ |v_main_#t~nondet4_43| 128)) (<= |v_main_#t~nondet4_43| 127) (= |c_#memory_int| (store |v_#memory_int_53| |c_main_~#string_A~0.base| (store (store (store (select |v_#memory_int_53| |c_main_~#string_A~0.base|) (+ c_main_~i~0 |c_main_~#string_A~0.offset| (- 2)) |v_main_#t~nondet4_42|) (+ c_main_~i~0 |c_main_~#string_A~0.offset| (- 1)) |v_main_#t~nondet4_43|) (+ c_main_~i~0 |c_main_~#string_A~0.offset|) |v_main_#t~nondet4_44|))) (<= |v_main_#t~nondet4_42| 127) (<= |v_main_#t~nondet4_44| 127)))) is different from true [2021-02-24 04:47:32,261 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:47:32,262 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:47:32,262 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:47:32,263 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-02-24 04:47:32,264 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 58 [2021-02-24 04:47:32,349 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:47:32,353 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:47:32,354 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:47:32,355 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-02-24 04:47:32,356 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 64 [2021-02-24 04:47:32,426 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:47:32,430 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:47:32,432 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:47:32,434 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-02-24 04:47:32,436 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-02-24 04:47:32,442 WARN L860 $PredicateComparison]: unable to prove that (and (< c_main_~i~0 6) (exists ((|v_main_#t~nondet4_42| Int) (|v_#memory_int_53| (Array Int (Array Int Int))) (|v_main_#t~nondet4_43| Int) (|v_main_#t~nondet4_44| Int)) (and (<= 0 (+ |v_main_#t~nondet4_42| 128)) (<= 0 (+ |v_main_#t~nondet4_44| 128)) (<= 0 (+ |v_main_#t~nondet4_43| 128)) (<= |v_main_#t~nondet4_43| 127) (<= |v_main_#t~nondet4_42| 127) (<= |v_main_#t~nondet4_44| 127) (= |c_#memory_int| (store |v_#memory_int_53| |c_main_~#string_A~0.base| (store (store (store (select |v_#memory_int_53| |c_main_~#string_A~0.base|) (+ c_main_~i~0 |c_main_~#string_A~0.offset| (- 3)) |v_main_#t~nondet4_42|) (+ c_main_~i~0 |c_main_~#string_A~0.offset| (- 2)) |v_main_#t~nondet4_43|) (+ c_main_~i~0 |c_main_~#string_A~0.offset| (- 1)) |v_main_#t~nondet4_44|)))))) is different from true [2021-02-24 04:47:32,443 WARN L141 QuantifierPusher]: treesize reduction 3, result has 94.9 percent of original size [2021-02-24 04:47:32,445 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:47:32,445 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:47:32,446 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-02-24 04:47:32,447 WARN L147 QuantifierPusher]: treesize reduction 3, result has 94.9 percent of original size 56 [2021-02-24 04:47:32,451 WARN L860 $PredicateComparison]: unable to prove that (and (< c_main_~i~0 5) (exists ((|v_main_#t~nondet4_42| Int) (|v_#memory_int_53| (Array Int (Array Int Int))) (|v_main_#t~nondet4_43| Int) (|v_main_#t~nondet4_44| Int)) (and (<= 0 (+ |v_main_#t~nondet4_42| 128)) (<= 0 (+ |v_main_#t~nondet4_44| 128)) (<= 0 (+ |v_main_#t~nondet4_43| 128)) (<= |v_main_#t~nondet4_43| 127) (<= |v_main_#t~nondet4_42| 127) (<= |v_main_#t~nondet4_44| 127) (= |c_#memory_int| (store |v_#memory_int_53| |c_main_~#string_A~0.base| (store (store (store (select |v_#memory_int_53| |c_main_~#string_A~0.base|) (+ c_main_~i~0 |c_main_~#string_A~0.offset| (- 3)) |v_main_#t~nondet4_42|) (+ c_main_~i~0 |c_main_~#string_A~0.offset| (- 2)) |v_main_#t~nondet4_43|) (+ c_main_~i~0 |c_main_~#string_A~0.offset| (- 1)) |v_main_#t~nondet4_44|)))))) is different from true [2021-02-24 04:47:32,452 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:47:32,454 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:47:32,455 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:47:32,455 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-02-24 04:47:32,456 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 64 [2021-02-24 04:47:32,565 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:47:32,567 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:47:32,568 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:47:32,568 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 56 [2021-02-24 04:47:32,569 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 78 [2021-02-24 04:47:32,694 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:47:32,696 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:47:32,698 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:47:32,699 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 64 [2021-02-24 04:47:32,699 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 70 [2021-02-24 04:47:32,704 WARN L860 $PredicateComparison]: unable to prove that (and (< c_main_~i~0 5) (exists ((|v_main_#t~nondet4_42| Int) (|v_#memory_int_53| (Array Int (Array Int Int))) (|v_main_#t~nondet4_45| Int) (|v_main_#t~nondet4_43| Int) (|v_main_#t~nondet4_44| Int)) (and (= |c_#memory_int| (store |v_#memory_int_53| |c_main_~#string_A~0.base| (store (store (store (store (select |v_#memory_int_53| |c_main_~#string_A~0.base|) (+ c_main_~i~0 |c_main_~#string_A~0.offset| (- 3)) |v_main_#t~nondet4_42|) (+ c_main_~i~0 |c_main_~#string_A~0.offset| (- 2)) |v_main_#t~nondet4_43|) (+ c_main_~i~0 |c_main_~#string_A~0.offset| (- 1)) |v_main_#t~nondet4_44|) (+ c_main_~i~0 |c_main_~#string_A~0.offset|) |v_main_#t~nondet4_45|))) (<= 0 (+ |v_main_#t~nondet4_42| 128)) (<= 0 (+ |v_main_#t~nondet4_44| 128)) (<= 0 (+ |v_main_#t~nondet4_43| 128)) (<= |v_main_#t~nondet4_43| 127) (<= |v_main_#t~nondet4_42| 127) (<= 0 (+ |v_main_#t~nondet4_45| 128)) (<= |v_main_#t~nondet4_44| 127) (<= |v_main_#t~nondet4_45| 127)))) is different from true [2021-02-24 04:47:32,706 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:47:32,708 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:47:32,709 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:47:32,709 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 64 [2021-02-24 04:47:32,710 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 72 [2021-02-24 04:47:32,811 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:47:32,815 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:47:32,818 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:47:32,819 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 64 [2021-02-24 04:47:32,820 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 78 [2021-02-24 04:47:32,921 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:47:32,926 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:47:32,927 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:47:32,928 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-02-24 04:47:32,929 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 75 [2021-02-24 04:47:32,937 WARN L860 $PredicateComparison]: unable to prove that (and (exists ((|v_main_#t~nondet4_42| Int) (|v_#memory_int_53| (Array Int (Array Int Int))) (|v_main_#t~nondet4_45| Int) (|v_main_#t~nondet4_43| Int) (|v_main_#t~nondet4_44| Int)) (and (= |c_#memory_int| (store |v_#memory_int_53| |c_main_~#string_A~0.base| (store (store (store (store (select |v_#memory_int_53| |c_main_~#string_A~0.base|) (+ c_main_~i~0 |c_main_~#string_A~0.offset| (- 4)) |v_main_#t~nondet4_42|) (+ c_main_~i~0 |c_main_~#string_A~0.offset| (- 3)) |v_main_#t~nondet4_43|) (+ c_main_~i~0 |c_main_~#string_A~0.offset| (- 2)) |v_main_#t~nondet4_44|) (+ c_main_~i~0 |c_main_~#string_A~0.offset| (- 1)) |v_main_#t~nondet4_45|))) (<= 0 (+ |v_main_#t~nondet4_42| 128)) (<= 0 (+ |v_main_#t~nondet4_44| 128)) (<= 0 (+ |v_main_#t~nondet4_43| 128)) (<= |v_main_#t~nondet4_43| 127) (<= |v_main_#t~nondet4_42| 127) (<= 0 (+ |v_main_#t~nondet4_45| 128)) (<= |v_main_#t~nondet4_44| 127) (<= |v_main_#t~nondet4_45| 127))) (< c_main_~i~0 6)) is different from true [2021-02-24 04:47:32,938 WARN L141 QuantifierPusher]: treesize reduction 7, result has 12.5 percent of original size [2021-02-24 04:47:32,938 WARN L147 QuantifierPusher]: treesize reduction 7, result has 12.5 percent of original size 1 [2021-02-24 04:47:32,939 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [800418430] [2021-02-24 04:47:32,939 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-24 04:47:32,939 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [39] imperfect sequences [] total 39 [2021-02-24 04:47:32,939 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1342199425] [2021-02-24 04:47:32,940 INFO L460 AbstractCegarLoop]: Interpolant automaton has 39 states [2021-02-24 04:47:32,940 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 04:47:32,941 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 39 interpolants. [2021-02-24 04:47:32,941 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=121, Invalid=674, Unknown=111, NotChecked=576, Total=1482 [2021-02-24 04:47:32,941 INFO L87 Difference]: Start difference. First operand 125 states and 130 transitions. Second operand 39 states. [2021-02-24 04:47:37,147 WARN L860 $PredicateComparison]: unable to prove that (and (exists ((|v_main_#t~nondet4_42| Int) (|v_#memory_int_53| (Array Int (Array Int Int))) (|v_main_#t~nondet4_43| Int)) (and (<= 0 (+ |v_main_#t~nondet4_42| 128)) (<= 0 (+ |v_main_#t~nondet4_43| 128)) (<= |v_main_#t~nondet4_43| 127) (<= |v_main_#t~nondet4_42| 127) (= |c_#memory_int| (store |v_#memory_int_53| |c_main_~#string_A~0.base| (store (store (select |v_#memory_int_53| |c_main_~#string_A~0.base|) (+ c_main_~i~0 |c_main_~#string_A~0.offset| (- 2)) |v_main_#t~nondet4_42|) (+ c_main_~i~0 |c_main_~#string_A~0.offset| (- 1)) |v_main_#t~nondet4_43|))))) (<= c_main_~i~0 4) (< c_main_~i~0 5) (<= c_main_~i~0 5) (exists ((|v_main_#t~nondet4_42| Int) (|v_#memory_int_53| (Array Int (Array Int Int))) (|v_main_#t~nondet4_43| Int) (|v_main_#t~nondet4_44| Int)) (and (<= 0 (+ |v_main_#t~nondet4_42| 128)) (<= 0 (+ |v_main_#t~nondet4_44| 128)) (<= 0 (+ |v_main_#t~nondet4_43| 128)) (<= |v_main_#t~nondet4_43| 127) (<= |v_main_#t~nondet4_42| 127) (<= |v_main_#t~nondet4_44| 127) (= |c_#memory_int| (store |v_#memory_int_53| |c_main_~#string_A~0.base| (store (store (store (select |v_#memory_int_53| |c_main_~#string_A~0.base|) (+ c_main_~i~0 |c_main_~#string_A~0.offset| (- 3)) |v_main_#t~nondet4_42|) (+ c_main_~i~0 |c_main_~#string_A~0.offset| (- 2)) |v_main_#t~nondet4_43|) (+ c_main_~i~0 |c_main_~#string_A~0.offset| (- 1)) |v_main_#t~nondet4_44|))))) (exists ((|v_main_#t~nondet4_42| Int) (|v_#memory_int_53| (Array Int (Array Int Int)))) (and (= (store |v_#memory_int_53| |c_main_~#string_A~0.base| (store (select |v_#memory_int_53| |c_main_~#string_A~0.base|) (+ c_main_~i~0 |c_main_~#string_A~0.offset| (- 1)) |v_main_#t~nondet4_42|)) |c_#memory_int|) (<= 0 (+ |v_main_#t~nondet4_42| 128)) (<= |v_main_#t~nondet4_42| 127)))) is different from true [2021-02-24 04:47:37,617 WARN L860 $PredicateComparison]: unable to prove that (and (<= c_main_~i~0 4) (< c_main_~i~0 5) (exists ((|v_main_#t~nondet4_42| Int) (|v_#memory_int_53| (Array Int (Array Int Int))) (|v_main_#t~nondet4_43| Int) (|v_main_#t~nondet4_44| Int)) (and (<= 0 (+ |v_main_#t~nondet4_42| 128)) (<= 0 (+ |v_main_#t~nondet4_44| 128)) (<= 0 (+ |v_main_#t~nondet4_43| 128)) (<= |v_main_#t~nondet4_43| 127) (= |c_#memory_int| (store |v_#memory_int_53| |c_main_~#string_A~0.base| (store (store (store (select |v_#memory_int_53| |c_main_~#string_A~0.base|) (+ c_main_~i~0 |c_main_~#string_A~0.offset| (- 2)) |v_main_#t~nondet4_42|) (+ c_main_~i~0 |c_main_~#string_A~0.offset| (- 1)) |v_main_#t~nondet4_43|) (+ c_main_~i~0 |c_main_~#string_A~0.offset|) |v_main_#t~nondet4_44|))) (<= |v_main_#t~nondet4_42| 127) (<= |v_main_#t~nondet4_44| 127))) (exists ((|v_main_#t~nondet4_42| Int) (|v_#memory_int_53| (Array Int (Array Int Int))) (|v_main_#t~nondet4_45| Int) (|v_main_#t~nondet4_43| Int) (|v_main_#t~nondet4_44| Int)) (and (= |c_#memory_int| (store |v_#memory_int_53| |c_main_~#string_A~0.base| (store (store (store (store (select |v_#memory_int_53| |c_main_~#string_A~0.base|) (+ c_main_~i~0 |c_main_~#string_A~0.offset| (- 3)) |v_main_#t~nondet4_42|) (+ c_main_~i~0 |c_main_~#string_A~0.offset| (- 2)) |v_main_#t~nondet4_43|) (+ c_main_~i~0 |c_main_~#string_A~0.offset| (- 1)) |v_main_#t~nondet4_44|) (+ c_main_~i~0 |c_main_~#string_A~0.offset|) |v_main_#t~nondet4_45|))) (<= 0 (+ |v_main_#t~nondet4_42| 128)) (<= 0 (+ |v_main_#t~nondet4_44| 128)) (<= 0 (+ |v_main_#t~nondet4_43| 128)) (<= |v_main_#t~nondet4_43| 127) (<= |v_main_#t~nondet4_42| 127) (<= 0 (+ |v_main_#t~nondet4_45| 128)) (<= |v_main_#t~nondet4_44| 127) (<= |v_main_#t~nondet4_45| 127))) (exists ((|v_main_#t~nondet4_42| Int) (|v_#memory_int_53| (Array Int (Array Int Int))) (|v_main_#t~nondet4_43| Int)) (and (<= 0 (+ |v_main_#t~nondet4_42| 128)) (<= 0 (+ |v_main_#t~nondet4_43| 128)) (<= |v_main_#t~nondet4_43| 127) (<= |v_main_#t~nondet4_42| 127) (= (store |v_#memory_int_53| |c_main_~#string_A~0.base| (store (store (select |v_#memory_int_53| |c_main_~#string_A~0.base|) (+ c_main_~i~0 |c_main_~#string_A~0.offset| (- 1)) |v_main_#t~nondet4_42|) (+ c_main_~i~0 |c_main_~#string_A~0.offset|) |v_main_#t~nondet4_43|)) |c_#memory_int|))) (exists ((|v_main_#t~nondet4_42| Int) (|v_#memory_int_53| (Array Int (Array Int Int)))) (and (<= 0 (+ |v_main_#t~nondet4_42| 128)) (<= |v_main_#t~nondet4_42| 127) (= |c_#memory_int| (store |v_#memory_int_53| |c_main_~#string_A~0.base| (store (select |v_#memory_int_53| |c_main_~#string_A~0.base|) (+ c_main_~i~0 |c_main_~#string_A~0.offset|) |v_main_#t~nondet4_42|)))))) is different from true [2021-02-24 04:47:39,406 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 04:47:39,406 INFO L93 Difference]: Finished difference Result 216 states and 227 transitions. [2021-02-24 04:47:39,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2021-02-24 04:47:39,407 INFO L78 Accepts]: Start accepts. Automaton has 39 states. Word has length 101 [2021-02-24 04:47:39,408 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 04:47:39,409 INFO L225 Difference]: With dead ends: 216 [2021-02-24 04:47:39,409 INFO L226 Difference]: Without dead ends: 139 [2021-02-24 04:47:39,413 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 24 SyntacticMatches, 4 SemanticMatches, 76 ConstructedPredicates, 11 IntricatePredicates, 0 DeprecatedPredicates, 1066 ImplicationChecksByTransitivity, 6.2s TimeCoverageRelationStatistics Valid=456, Invalid=3500, Unknown=510, NotChecked=1540, Total=6006 [2021-02-24 04:47:39,414 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 139 states. [2021-02-24 04:47:39,441 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 139 to 139. [2021-02-24 04:47:39,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 139 states. [2021-02-24 04:47:39,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139 states to 139 states and 144 transitions. [2021-02-24 04:47:39,443 INFO L78 Accepts]: Start accepts. Automaton has 139 states and 144 transitions. Word has length 101 [2021-02-24 04:47:39,443 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 04:47:39,443 INFO L480 AbstractCegarLoop]: Abstraction has 139 states and 144 transitions. [2021-02-24 04:47:39,443 INFO L481 AbstractCegarLoop]: Interpolant automaton has 39 states. [2021-02-24 04:47:39,443 INFO L276 IsEmpty]: Start isEmpty. Operand 139 states and 144 transitions. [2021-02-24 04:47:39,445 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2021-02-24 04:47:39,445 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 04:47:39,445 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-24 04:47:39,446 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-02-24 04:47:39,446 INFO L428 AbstractCegarLoop]: === Iteration 7 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 04:47:39,446 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 04:47:39,446 INFO L82 PathProgramCache]: Analyzing trace with hash -645158194, now seen corresponding path program 5 times [2021-02-24 04:47:39,447 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 04:47:39,447 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [548045991] [2021-02-24 04:47:39,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 04:47:39,453 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:47:39,455 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-02-24 04:47:39,457 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:47:39,459 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-02-24 04:47:39,466 WARN L141 QuantifierPusher]: treesize reduction 4, result has 83.3 percent of original size [2021-02-24 04:47:39,467 INFO L723 QuantifierPusher]: Distributing 3 disjuncts over 3 conjuncts [2021-02-24 04:47:39,469 INFO L730 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:47:39,469 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:47:39,470 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:47:39,472 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-02-24 04:47:39,473 WARN L147 QuantifierPusher]: treesize reduction 4, result has 83.3 percent of original size 20 [2021-02-24 04:47:39,475 WARN L141 QuantifierPusher]: treesize reduction 11, result has 82.0 percent of original size [2021-02-24 04:47:39,477 WARN L147 QuantifierPusher]: treesize reduction 11, result has 82.0 percent of original size 50 [2021-02-24 04:47:39,477 INFO L206 tedInterpolationCore]: Starting analysis with loop acceleration approximation PRECISE [2021-02-24 04:47:39,478 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:47:39,479 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-02-24 04:47:39,480 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:47:39,481 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-02-24 04:47:39,487 WARN L141 QuantifierPusher]: treesize reduction 4, result has 83.3 percent of original size [2021-02-24 04:47:39,489 INFO L723 QuantifierPusher]: Distributing 3 disjuncts over 3 conjuncts [2021-02-24 04:47:39,491 INFO L730 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:47:39,491 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:47:39,492 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:47:39,495 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-02-24 04:47:39,495 WARN L147 QuantifierPusher]: treesize reduction 4, result has 83.3 percent of original size 20 [2021-02-24 04:47:39,509 WARN L141 QuantifierPusher]: treesize reduction 11, result has 82.0 percent of original size [2021-02-24 04:47:39,511 WARN L147 QuantifierPusher]: treesize reduction 11, result has 82.0 percent of original size 50 [2021-02-24 04:47:39,512 INFO L206 tedInterpolationCore]: Starting analysis with loop acceleration approximation PRECISE [2021-02-24 04:47:39,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-02-24 04:47:39,554 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-02-24 04:47:39,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-02-24 04:47:39,624 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-02-24 04:47:39,679 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2021-02-24 04:47:39,680 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2021-02-24 04:47:39,681 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-02-24 04:47:39,716 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.02 04:47:39 BoogieIcfgContainer [2021-02-24 04:47:39,716 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-02-24 04:47:39,717 INFO L168 Benchmark]: Toolchain (without parser) took 20013.92 ms. Allocated memory was 152.0 MB in the beginning and 219.2 MB in the end (delta: 67.1 MB). Free memory was 128.4 MB in the beginning and 190.7 MB in the end (delta: -62.3 MB). Peak memory consumption was 6.2 MB. Max. memory is 8.0 GB. [2021-02-24 04:47:39,717 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 152.0 MB. Free memory was 128.2 MB in the beginning and 127.8 MB in the end (delta: 435.3 kB). There was no memory consumed. Max. memory is 8.0 GB. [2021-02-24 04:47:39,718 INFO L168 Benchmark]: CACSL2BoogieTranslator took 309.10 ms. Allocated memory is still 152.0 MB. Free memory was 127.4 MB in the beginning and 116.9 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. [2021-02-24 04:47:39,718 INFO L168 Benchmark]: Boogie Preprocessor took 53.12 ms. Allocated memory is still 152.0 MB. Free memory was 116.9 MB in the beginning and 114.8 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-02-24 04:47:39,719 INFO L168 Benchmark]: RCFGBuilder took 778.17 ms. Allocated memory is still 152.0 MB. Free memory was 114.8 MB in the beginning and 89.6 MB in the end (delta: 25.2 MB). Peak memory consumption was 25.2 MB. Max. memory is 8.0 GB. [2021-02-24 04:47:39,729 INFO L168 Benchmark]: TraceAbstraction took 18854.37 ms. Allocated memory was 152.0 MB in the beginning and 219.2 MB in the end (delta: 67.1 MB). Free memory was 89.0 MB in the beginning and 190.7 MB in the end (delta: -101.7 MB). There was no memory consumed. Max. memory is 8.0 GB. [2021-02-24 04:47:39,733 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 152.0 MB. Free memory was 128.2 MB in the beginning and 127.8 MB in the end (delta: 435.3 kB). There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 309.10 ms. Allocated memory is still 152.0 MB. Free memory was 127.4 MB in the beginning and 116.9 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 53.12 ms. Allocated memory is still 152.0 MB. Free memory was 116.9 MB in the beginning and 114.8 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 778.17 ms. Allocated memory is still 152.0 MB. Free memory was 114.8 MB in the beginning and 89.6 MB in the end (delta: 25.2 MB). Peak memory consumption was 25.2 MB. Max. memory is 8.0 GB. * TraceAbstraction took 18854.37 ms. Allocated memory was 152.0 MB in the beginning and 219.2 MB in the end (delta: 67.1 MB). Free memory was 89.0 MB in the beginning and 190.7 MB in the end (delta: -101.7 MB). There was no memory consumed. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 20]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of shiftLeft at line 69. Possible FailurePath: [L31] char string_A[5], string_B[5]; [L32] int i, j, nc_A, nc_B, found=0; [L35] i=0 [L35] COND TRUE i<5 [L36] string_A[i]=__VERIFIER_nondet_char() [L35] i++ [L35] COND TRUE i<5 [L36] string_A[i]=__VERIFIER_nondet_char() [L35] i++ [L35] COND TRUE i<5 [L36] string_A[i]=__VERIFIER_nondet_char() [L35] i++ [L35] COND TRUE i<5 [L36] string_A[i]=__VERIFIER_nondet_char() [L35] i++ [L35] COND TRUE i<5 [L36] string_A[i]=__VERIFIER_nondet_char() [L35] i++ [L35] COND FALSE !(i<5) [L37] EXPR string_A[5 -1] [L37] COND FALSE !(!(string_A[5 -1]=='\0')) [L39] i=0 [L39] COND TRUE i<5 [L40] string_B[i]=__VERIFIER_nondet_char() [L39] i++ [L39] COND TRUE i<5 [L40] string_B[i]=__VERIFIER_nondet_char() [L39] i++ [L39] COND TRUE i<5 [L40] string_B[i]=__VERIFIER_nondet_char() [L39] i++ [L39] COND TRUE i<5 [L40] string_B[i]=__VERIFIER_nondet_char() [L39] i++ [L39] COND TRUE i<5 [L40] string_B[i]=__VERIFIER_nondet_char() [L39] i++ [L39] COND FALSE !(i<5) [L41] EXPR string_B[5 -1] [L41] COND FALSE !(!(string_B[5 -1]=='\0')) [L43] nc_A = 0 [L44] EXPR string_A[nc_A] [L44] COND FALSE !(string_A[nc_A]!='\0') [L47] nc_B = 0 [L48] EXPR string_B[nc_B] [L48] COND FALSE !(string_B[nc_B]!='\0') [L51] COND FALSE !(!(nc_B >= nc_A)) [L54] EXPR j=0 [L54] i=j=0 [L55] COND FALSE !((inc_B-1)<