/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 --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.use.separate.solver.for.trace.checks true -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf -i ../../../trunk/examples/svcomp/loops/veris.c_OpenSER_cases1_stripFullBoth_arr.i -------------------------------------------------------------------------------- This is Ultimate 0.2.0-b8ad66e [2020-10-24 02:24:57,312 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-24 02:24:57,318 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-24 02:24:57,366 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-24 02:24:57,367 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-24 02:24:57,368 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-24 02:24:57,370 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-24 02:24:57,372 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-24 02:24:57,375 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-24 02:24:57,376 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-24 02:24:57,377 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-24 02:24:57,379 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-24 02:24:57,380 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-24 02:24:57,381 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-24 02:24:57,382 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-24 02:24:57,384 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-24 02:24:57,385 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-24 02:24:57,386 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-24 02:24:57,388 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-24 02:24:57,390 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-24 02:24:57,392 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-24 02:24:57,394 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-24 02:24:57,395 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-24 02:24:57,396 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-24 02:24:57,399 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-10-24 02:24:57,409 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-24 02:24:57,411 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-24 02:24:57,411 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-24 02:24:57,413 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-10-24 02:24:57,425 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-24 02:24:57,426 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-24 02:24:57,427 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-24 02:24:57,428 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-24 02:24:57,428 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-24 02:24:57,428 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-24 02:24:57,429 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-24 02:24:57,429 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-24 02:24:57,429 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-24 02:24:57,430 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-24 02:24:57,430 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-24 02:24:57,430 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-24 02:24:57,431 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-24 02:24:57,431 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-24 02:24:57,431 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-24 02:24:57,431 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-10-24 02:24:57,432 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-24 02:24:57,432 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-24 02:24:57,432 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-24 02:24:57,433 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-24 02:24:57,433 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-10-24 02:24:57,433 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-24 02:24:57,433 INFO L138 SettingsManager]: * Use separate solver for trace checks=false WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use separate solver for trace checks -> true [2020-10-24 02:24:57,821 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-24 02:24:57,852 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-24 02:24:57,855 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-24 02:24:57,856 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-24 02:24:57,856 INFO L275 PluginConnector]: CDTParser initialized [2020-10-24 02:24:57,857 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops/veris.c_OpenSER_cases1_stripFullBoth_arr.i [2020-10-24 02:24:57,934 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b9ad56cf9/1c997015e0f842cabe4904d077ad9b1d/FLAG479334fe6 [2020-10-24 02:24:58,591 INFO L306 CDTParser]: Found 1 translation units. [2020-10-24 02:24:58,592 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loops/veris.c_OpenSER_cases1_stripFullBoth_arr.i [2020-10-24 02:24:58,605 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b9ad56cf9/1c997015e0f842cabe4904d077ad9b1d/FLAG479334fe6 [2020-10-24 02:24:58,916 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b9ad56cf9/1c997015e0f842cabe4904d077ad9b1d [2020-10-24 02:24:58,920 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-24 02:24:58,929 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-24 02:24:58,933 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-24 02:24:58,934 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-24 02:24:58,938 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-24 02:24:58,939 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 02:24:58" (1/1) ... [2020-10-24 02:24:58,946 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3f87bd3b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:24:58, skipping insertion in model container [2020-10-24 02:24:58,947 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 02:24:58" (1/1) ... [2020-10-24 02:24:58,957 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-24 02:24:58,999 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-24 02:24:59,272 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-24 02:24:59,282 INFO L203 MainTranslator]: Completed pre-run [2020-10-24 02:24:59,322 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-24 02:24:59,348 INFO L208 MainTranslator]: Completed translation [2020-10-24 02:24:59,348 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:24:59 WrapperNode [2020-10-24 02:24:59,349 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-24 02:24:59,350 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-24 02:24:59,350 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-24 02:24:59,350 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-24 02:24:59,364 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:24:59" (1/1) ... [2020-10-24 02:24:59,364 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:24:59" (1/1) ... [2020-10-24 02:24:59,375 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:24:59" (1/1) ... [2020-10-24 02:24:59,375 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:24:59" (1/1) ... [2020-10-24 02:24:59,389 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:24:59" (1/1) ... [2020-10-24 02:24:59,396 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:24:59" (1/1) ... [2020-10-24 02:24:59,399 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:24:59" (1/1) ... [2020-10-24 02:24:59,403 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-24 02:24:59,405 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-24 02:24:59,405 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-24 02:24:59,405 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-24 02:24:59,406 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:24:59" (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 [2020-10-24 02:24:59,479 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-24 02:24:59,480 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-24 02:24:59,480 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-24 02:24:59,480 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-10-24 02:24:59,480 INFO L138 BoogieDeclarations]: Found implementation of procedure r_strncpy [2020-10-24 02:24:59,481 INFO L138 BoogieDeclarations]: Found implementation of procedure parse_expression_list [2020-10-24 02:24:59,481 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-24 02:24:59,481 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-24 02:24:59,481 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-24 02:24:59,481 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2020-10-24 02:24:59,482 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2020-10-24 02:24:59,482 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-24 02:24:59,482 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-24 02:24:59,482 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2020-10-24 02:24:59,482 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-10-24 02:24:59,482 INFO L130 BoogieDeclarations]: Found specification of procedure strchr [2020-10-24 02:24:59,497 INFO L130 BoogieDeclarations]: Found specification of procedure strrchr [2020-10-24 02:24:59,497 INFO L130 BoogieDeclarations]: Found specification of procedure strstr [2020-10-24 02:24:59,498 INFO L130 BoogieDeclarations]: Found specification of procedure strncpy [2020-10-24 02:24:59,499 INFO L130 BoogieDeclarations]: Found specification of procedure strncpy_ptr [2020-10-24 02:24:59,500 INFO L130 BoogieDeclarations]: Found specification of procedure strcpy [2020-10-24 02:24:59,500 INFO L130 BoogieDeclarations]: Found specification of procedure strlen [2020-10-24 02:24:59,503 INFO L130 BoogieDeclarations]: Found specification of procedure strncmp [2020-10-24 02:24:59,503 INFO L130 BoogieDeclarations]: Found specification of procedure strcmp [2020-10-24 02:24:59,503 INFO L130 BoogieDeclarations]: Found specification of procedure strcat [2020-10-24 02:24:59,504 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2020-10-24 02:24:59,504 INFO L130 BoogieDeclarations]: Found specification of procedure isascii [2020-10-24 02:24:59,505 INFO L130 BoogieDeclarations]: Found specification of procedure isspace [2020-10-24 02:24:59,505 INFO L130 BoogieDeclarations]: Found specification of procedure getc [2020-10-24 02:24:59,506 INFO L130 BoogieDeclarations]: Found specification of procedure strrand [2020-10-24 02:24:59,506 INFO L130 BoogieDeclarations]: Found specification of procedure istrrand [2020-10-24 02:24:59,506 INFO L130 BoogieDeclarations]: Found specification of procedure istrchr [2020-10-24 02:24:59,506 INFO L130 BoogieDeclarations]: Found specification of procedure istrrchr [2020-10-24 02:24:59,510 INFO L130 BoogieDeclarations]: Found specification of procedure istrncmp [2020-10-24 02:24:59,511 INFO L130 BoogieDeclarations]: Found specification of procedure istrstr [2020-10-24 02:24:59,511 INFO L130 BoogieDeclarations]: Found specification of procedure r_strncpy [2020-10-24 02:24:59,511 INFO L130 BoogieDeclarations]: Found specification of procedure r_strcpy [2020-10-24 02:24:59,511 INFO L130 BoogieDeclarations]: Found specification of procedure r_strcat [2020-10-24 02:24:59,511 INFO L130 BoogieDeclarations]: Found specification of procedure r_strncat [2020-10-24 02:24:59,511 INFO L130 BoogieDeclarations]: Found specification of procedure r_memcpy [2020-10-24 02:24:59,512 INFO L130 BoogieDeclarations]: Found specification of procedure parse_expression_list [2020-10-24 02:24:59,512 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-24 02:24:59,512 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-24 02:24:59,513 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-24 02:24:59,513 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-24 02:24:59,513 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-24 02:24:59,513 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-24 02:24:59,514 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-24 02:25:00,308 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-24 02:25:00,308 INFO L298 CfgBuilder]: Removed 4 assume(true) statements. [2020-10-24 02:25:00,311 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 02:25:00 BoogieIcfgContainer [2020-10-24 02:25:00,311 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-24 02:25:00,317 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-24 02:25:00,317 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-24 02:25:00,320 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-24 02:25:00,321 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 02:24:58" (1/3) ... [2020-10-24 02:25:00,322 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f6e5d4b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 02:25:00, skipping insertion in model container [2020-10-24 02:25:00,322 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:24:59" (2/3) ... [2020-10-24 02:25:00,323 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f6e5d4b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 02:25:00, skipping insertion in model container [2020-10-24 02:25:00,323 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 02:25:00" (3/3) ... [2020-10-24 02:25:00,325 INFO L111 eAbstractionObserver]: Analyzing ICFG veris.c_OpenSER_cases1_stripFullBoth_arr.i [2020-10-24 02:25:00,339 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-24 02:25:00,345 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-24 02:25:00,361 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-24 02:25:00,399 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-24 02:25:00,399 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-24 02:25:00,399 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-24 02:25:00,399 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-24 02:25:00,399 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-24 02:25:00,400 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-24 02:25:00,400 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-24 02:25:00,400 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-24 02:25:00,429 INFO L276 IsEmpty]: Start isEmpty. Operand 145 states. [2020-10-24 02:25:00,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2020-10-24 02:25:00,448 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 02:25:00,449 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] [2020-10-24 02:25:00,450 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 02:25:00,457 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 02:25:00,458 INFO L82 PathProgramCache]: Analyzing trace with hash 365736906, now seen corresponding path program 1 times [2020-10-24 02:25:00,468 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-24 02:25:00,470 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [789934799] [2020-10-24 02:25:00,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-24 02:25:00,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 02:25:00,739 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-24 02:25:00,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 02:25:00,756 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-24 02:25:00,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 02:25:00,777 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-24 02:25:00,778 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [789934799] [2020-10-24 02:25:00,780 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-24 02:25:00,781 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-24 02:25:00,782 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2093728678] [2020-10-24 02:25:00,787 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-24 02:25:00,788 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-24 02:25:00,801 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-24 02:25:00,802 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-24 02:25:00,805 INFO L87 Difference]: Start difference. First operand 145 states. Second operand 3 states. [2020-10-24 02:25:01,131 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 02:25:01,132 INFO L93 Difference]: Finished difference Result 266 states and 305 transitions. [2020-10-24 02:25:01,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-24 02:25:01,134 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 57 [2020-10-24 02:25:01,134 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 02:25:01,144 INFO L225 Difference]: With dead ends: 266 [2020-10-24 02:25:01,144 INFO L226 Difference]: Without dead ends: 117 [2020-10-24 02:25:01,149 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-24 02:25:01,168 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117 states. [2020-10-24 02:25:01,203 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117 to 117. [2020-10-24 02:25:01,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 117 states. [2020-10-24 02:25:01,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 117 states and 127 transitions. [2020-10-24 02:25:01,208 INFO L78 Accepts]: Start accepts. Automaton has 117 states and 127 transitions. Word has length 57 [2020-10-24 02:25:01,209 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 02:25:01,209 INFO L481 AbstractCegarLoop]: Abstraction has 117 states and 127 transitions. [2020-10-24 02:25:01,209 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-24 02:25:01,209 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states and 127 transitions. [2020-10-24 02:25:01,212 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2020-10-24 02:25:01,212 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 02:25:01,213 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-24 02:25:01,213 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-24 02:25:01,213 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 02:25:01,214 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 02:25:01,214 INFO L82 PathProgramCache]: Analyzing trace with hash 2099728190, now seen corresponding path program 1 times [2020-10-24 02:25:01,215 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-24 02:25:01,215 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1692965223] [2020-10-24 02:25:01,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-24 02:25:01,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 02:25:01,334 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-24 02:25:01,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 02:25:01,346 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-10-24 02:25:01,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 02:25:01,360 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-24 02:25:01,361 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1692965223] [2020-10-24 02:25:01,361 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-24 02:25:01,361 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-24 02:25:01,362 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1956222257] [2020-10-24 02:25:01,363 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-24 02:25:01,364 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-24 02:25:01,364 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-24 02:25:01,365 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-24 02:25:01,365 INFO L87 Difference]: Start difference. First operand 117 states and 127 transitions. Second operand 4 states. [2020-10-24 02:25:01,608 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 02:25:01,608 INFO L93 Difference]: Finished difference Result 220 states and 240 transitions. [2020-10-24 02:25:01,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-24 02:25:01,609 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 69 [2020-10-24 02:25:01,609 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 02:25:01,611 INFO L225 Difference]: With dead ends: 220 [2020-10-24 02:25:01,611 INFO L226 Difference]: Without dead ends: 123 [2020-10-24 02:25:01,613 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-24 02:25:01,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123 states. [2020-10-24 02:25:01,628 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123 to 118. [2020-10-24 02:25:01,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 118 states. [2020-10-24 02:25:01,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 118 states and 128 transitions. [2020-10-24 02:25:01,630 INFO L78 Accepts]: Start accepts. Automaton has 118 states and 128 transitions. Word has length 69 [2020-10-24 02:25:01,630 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 02:25:01,631 INFO L481 AbstractCegarLoop]: Abstraction has 118 states and 128 transitions. [2020-10-24 02:25:01,631 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-24 02:25:01,631 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states and 128 transitions. [2020-10-24 02:25:01,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2020-10-24 02:25:01,634 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 02:25:01,634 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-24 02:25:01,634 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-24 02:25:01,634 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 02:25:01,635 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 02:25:01,635 INFO L82 PathProgramCache]: Analyzing trace with hash -1876992630, now seen corresponding path program 1 times [2020-10-24 02:25:01,635 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-24 02:25:01,636 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [701678445] [2020-10-24 02:25:01,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-24 02:25:01,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 02:25:01,741 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-24 02:25:01,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 02:25:01,751 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-10-24 02:25:01,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 02:25:01,781 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-24 02:25:01,782 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [701678445] [2020-10-24 02:25:01,782 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-24 02:25:01,783 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-24 02:25:01,783 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [964164993] [2020-10-24 02:25:01,783 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-24 02:25:01,784 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-24 02:25:01,784 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-24 02:25:01,785 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-10-24 02:25:01,785 INFO L87 Difference]: Start difference. First operand 118 states and 128 transitions. Second operand 6 states. [2020-10-24 02:25:02,101 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 02:25:02,102 INFO L93 Difference]: Finished difference Result 227 states and 247 transitions. [2020-10-24 02:25:02,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-24 02:25:02,102 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 76 [2020-10-24 02:25:02,103 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 02:25:02,104 INFO L225 Difference]: With dead ends: 227 [2020-10-24 02:25:02,105 INFO L226 Difference]: Without dead ends: 130 [2020-10-24 02:25:02,106 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2020-10-24 02:25:02,106 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130 states. [2020-10-24 02:25:02,120 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130 to 125. [2020-10-24 02:25:02,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 125 states. [2020-10-24 02:25:02,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 135 transitions. [2020-10-24 02:25:02,122 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 135 transitions. Word has length 76 [2020-10-24 02:25:02,122 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 02:25:02,122 INFO L481 AbstractCegarLoop]: Abstraction has 125 states and 135 transitions. [2020-10-24 02:25:02,122 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-24 02:25:02,122 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 135 transitions. [2020-10-24 02:25:02,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2020-10-24 02:25:02,124 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 02:25:02,124 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-24 02:25:02,125 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-24 02:25:02,125 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 02:25:02,125 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 02:25:02,126 INFO L82 PathProgramCache]: Analyzing trace with hash -579542594, now seen corresponding path program 2 times [2020-10-24 02:25:02,126 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-24 02:25:02,126 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [984249289] [2020-10-24 02:25:02,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-24 02:25:02,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 02:25:02,202 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-24 02:25:02,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 02:25:02,210 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2020-10-24 02:25:02,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 02:25:02,221 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2020-10-24 02:25:02,222 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [984249289] [2020-10-24 02:25:02,222 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-24 02:25:02,222 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-24 02:25:02,223 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1831746687] [2020-10-24 02:25:02,223 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-24 02:25:02,224 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-24 02:25:02,224 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-24 02:25:02,225 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-24 02:25:02,225 INFO L87 Difference]: Start difference. First operand 125 states and 135 transitions. Second operand 4 states. [2020-10-24 02:25:02,438 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 02:25:02,439 INFO L93 Difference]: Finished difference Result 215 states and 235 transitions. [2020-10-24 02:25:02,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-24 02:25:02,439 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 83 [2020-10-24 02:25:02,440 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 02:25:02,441 INFO L225 Difference]: With dead ends: 215 [2020-10-24 02:25:02,441 INFO L226 Difference]: Without dead ends: 126 [2020-10-24 02:25:02,442 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-24 02:25:02,443 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126 states. [2020-10-24 02:25:02,454 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126 to 126. [2020-10-24 02:25:02,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 126 states. [2020-10-24 02:25:02,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 126 states and 136 transitions. [2020-10-24 02:25:02,456 INFO L78 Accepts]: Start accepts. Automaton has 126 states and 136 transitions. Word has length 83 [2020-10-24 02:25:02,457 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 02:25:02,457 INFO L481 AbstractCegarLoop]: Abstraction has 126 states and 136 transitions. [2020-10-24 02:25:02,457 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-24 02:25:02,457 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states and 136 transitions. [2020-10-24 02:25:02,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2020-10-24 02:25:02,459 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 02:25:02,459 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-24 02:25:02,459 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-24 02:25:02,460 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 02:25:02,460 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 02:25:02,460 INFO L82 PathProgramCache]: Analyzing trace with hash -433412191, now seen corresponding path program 1 times [2020-10-24 02:25:02,461 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-24 02:25:02,461 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [769361942] [2020-10-24 02:25:02,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-24 02:25:02,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 02:25:02,597 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-24 02:25:02,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 02:25:02,604 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2020-10-24 02:25:02,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 02:25:02,616 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2020-10-24 02:25:02,617 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [769361942] [2020-10-24 02:25:02,617 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-24 02:25:02,617 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-24 02:25:02,617 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [538150054] [2020-10-24 02:25:02,618 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-24 02:25:02,618 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-24 02:25:02,619 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-24 02:25:02,619 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-24 02:25:02,619 INFO L87 Difference]: Start difference. First operand 126 states and 136 transitions. Second operand 6 states. [2020-10-24 02:25:02,913 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 02:25:02,913 INFO L93 Difference]: Finished difference Result 126 states and 136 transitions. [2020-10-24 02:25:02,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-24 02:25:02,914 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 85 [2020-10-24 02:25:02,914 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 02:25:02,914 INFO L225 Difference]: With dead ends: 126 [2020-10-24 02:25:02,915 INFO L226 Difference]: Without dead ends: 0 [2020-10-24 02:25:02,916 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-10-24 02:25:02,916 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-24 02:25:02,916 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-24 02:25:02,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-24 02:25:02,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-24 02:25:02,917 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 85 [2020-10-24 02:25:02,917 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 02:25:02,917 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-24 02:25:02,917 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-24 02:25:02,917 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-24 02:25:02,918 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-24 02:25:02,918 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-24 02:25:02,920 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-24 02:25:03,559 INFO L277 CegarLoopResult]: At program point reach_errorEXIT(line 12) the Hoare annotation is: true [2020-10-24 02:25:03,561 INFO L277 CegarLoopResult]: At program point reach_errorENTRY(line 12) the Hoare annotation is: true [2020-10-24 02:25:03,561 INFO L277 CegarLoopResult]: At program point L12-1(line 12) the Hoare annotation is: true [2020-10-24 02:25:03,561 INFO L277 CegarLoopResult]: At program point L12-2(line 12) the Hoare annotation is: true [2020-10-24 02:25:03,562 INFO L277 CegarLoopResult]: At program point L12-3(line 12) the Hoare annotation is: true [2020-10-24 02:25:03,562 INFO L277 CegarLoopResult]: At program point reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION(line 12) the Hoare annotation is: true [2020-10-24 02:25:03,562 INFO L277 CegarLoopResult]: At program point L68-3(line 68) the Hoare annotation is: true [2020-10-24 02:25:03,562 INFO L277 CegarLoopResult]: At program point L68-4(line 68) the Hoare annotation is: true [2020-10-24 02:25:03,562 INFO L277 CegarLoopResult]: At program point L68-6(line 68) the Hoare annotation is: true [2020-10-24 02:25:03,562 INFO L277 CegarLoopResult]: At program point L68-7(line 68) the Hoare annotation is: true [2020-10-24 02:25:03,563 INFO L270 CegarLoopResult]: At program point L60(line 60) the Hoare annotation is: (and (= |old(#length)| |#length|) (= |old(#valid)| |#valid|)) [2020-10-24 02:25:03,563 INFO L270 CegarLoopResult]: At program point L60-1(line 60) the Hoare annotation is: (and (= |old(#length)| |#length|) (= |old(#valid)| |#valid|)) [2020-10-24 02:25:03,563 INFO L270 CegarLoopResult]: At program point L60-2(line 60) the Hoare annotation is: (and (= |old(#length)| |#length|) (= |old(#valid)| |#valid|)) [2020-10-24 02:25:03,563 INFO L270 CegarLoopResult]: At program point L77(line 77) the Hoare annotation is: (< parse_expression_list_~j~0 (+ parse_expression_list_~start~0 1)) [2020-10-24 02:25:03,563 INFO L270 CegarLoopResult]: At program point L77-1(line 77) the Hoare annotation is: (< parse_expression_list_~j~0 (+ parse_expression_list_~start~0 1)) [2020-10-24 02:25:03,563 INFO L270 CegarLoopResult]: At program point L61(line 61) the Hoare annotation is: (and (= |old(#length)| |#length|) (= |old(#valid)| |#valid|)) [2020-10-24 02:25:03,564 INFO L277 CegarLoopResult]: At program point L61-1(lines 59 86) the Hoare annotation is: true [2020-10-24 02:25:03,564 INFO L277 CegarLoopResult]: At program point L61-2(line 61) the Hoare annotation is: true [2020-10-24 02:25:03,564 INFO L277 CegarLoopResult]: At program point L61-3(line 61) the Hoare annotation is: true [2020-10-24 02:25:03,564 INFO L277 CegarLoopResult]: At program point L61-4(line 61) the Hoare annotation is: true [2020-10-24 02:25:03,564 INFO L277 CegarLoopResult]: At program point L61-5(line 61) the Hoare annotation is: true [2020-10-24 02:25:03,564 INFO L277 CegarLoopResult]: At program point L61-6(line 61) the Hoare annotation is: true [2020-10-24 02:25:03,565 INFO L277 CegarLoopResult]: At program point L61-7(line 61) the Hoare annotation is: true [2020-10-24 02:25:03,565 INFO L277 CegarLoopResult]: At program point L61-8(line 61) the Hoare annotation is: true [2020-10-24 02:25:03,565 INFO L277 CegarLoopResult]: At program point L61-9(line 61) the Hoare annotation is: true [2020-10-24 02:25:03,565 INFO L270 CegarLoopResult]: At program point L78(lines 72 81) the Hoare annotation is: (< parse_expression_list_~j~0 (+ parse_expression_list_~start~0 1)) [2020-10-24 02:25:03,565 INFO L277 CegarLoopResult]: At program point L70-1(line 70) the Hoare annotation is: true [2020-10-24 02:25:03,565 INFO L277 CegarLoopResult]: At program point L70-2(line 70) the Hoare annotation is: true [2020-10-24 02:25:03,566 INFO L277 CegarLoopResult]: At program point L70-3(line 70) the Hoare annotation is: true [2020-10-24 02:25:03,566 INFO L277 CegarLoopResult]: At program point L70-4(line 70) the Hoare annotation is: true [2020-10-24 02:25:03,566 INFO L277 CegarLoopResult]: At program point L70-6(line 70) the Hoare annotation is: true [2020-10-24 02:25:03,566 INFO L277 CegarLoopResult]: At program point L70-7(line 70) the Hoare annotation is: true [2020-10-24 02:25:03,566 INFO L277 CegarLoopResult]: At program point L62(line 62) the Hoare annotation is: true [2020-10-24 02:25:03,566 INFO L277 CegarLoopResult]: At program point L70-8(line 70) the Hoare annotation is: true [2020-10-24 02:25:03,566 INFO L277 CegarLoopResult]: At program point L70-10(line 70) the Hoare annotation is: true [2020-10-24 02:25:03,567 INFO L277 CegarLoopResult]: At program point L70-11(line 70) the Hoare annotation is: true [2020-10-24 02:25:03,567 INFO L277 CegarLoopResult]: At program point L70-12(line 70) the Hoare annotation is: true [2020-10-24 02:25:03,567 INFO L277 CegarLoopResult]: At program point L70-13(line 70) the Hoare annotation is: true [2020-10-24 02:25:03,567 INFO L277 CegarLoopResult]: At program point L70-14(line 70) the Hoare annotation is: true [2020-10-24 02:25:03,567 INFO L277 CegarLoopResult]: At program point L70-16(line 70) the Hoare annotation is: true [2020-10-24 02:25:03,567 INFO L277 CegarLoopResult]: At program point L70-17(line 70) the Hoare annotation is: true [2020-10-24 02:25:03,568 INFO L277 CegarLoopResult]: At program point L70-18(line 70) the Hoare annotation is: true [2020-10-24 02:25:03,568 INFO L277 CegarLoopResult]: At program point L70-19(line 70) the Hoare annotation is: true [2020-10-24 02:25:03,568 INFO L277 CegarLoopResult]: At program point L70-20(line 70) the Hoare annotation is: true [2020-10-24 02:25:03,568 INFO L277 CegarLoopResult]: At program point L70-21(line 70) the Hoare annotation is: true [2020-10-24 02:25:03,568 INFO L277 CegarLoopResult]: At program point L70-22(line 70) the Hoare annotation is: true [2020-10-24 02:25:03,568 INFO L277 CegarLoopResult]: At program point L70-23(line 70) the Hoare annotation is: true [2020-10-24 02:25:03,568 INFO L277 CegarLoopResult]: At program point L70-24(line 70) the Hoare annotation is: true [2020-10-24 02:25:03,569 INFO L277 CegarLoopResult]: At program point L71(line 71) the Hoare annotation is: true [2020-10-24 02:25:03,569 INFO L277 CegarLoopResult]: At program point L71-1(line 71) the Hoare annotation is: true [2020-10-24 02:25:03,569 INFO L277 CegarLoopResult]: At program point L71-2(line 71) the Hoare annotation is: true [2020-10-24 02:25:03,569 INFO L277 CegarLoopResult]: At program point L71-4(line 71) the Hoare annotation is: true [2020-10-24 02:25:03,569 INFO L277 CegarLoopResult]: At program point L71-5(line 71) the Hoare annotation is: true [2020-10-24 02:25:03,569 INFO L277 CegarLoopResult]: At program point L71-6(line 71) the Hoare annotation is: true [2020-10-24 02:25:03,569 INFO L277 CegarLoopResult]: At program point L71-7(line 71) the Hoare annotation is: true [2020-10-24 02:25:03,570 INFO L277 CegarLoopResult]: At program point L71-8(line 71) the Hoare annotation is: true [2020-10-24 02:25:03,570 INFO L277 CegarLoopResult]: At program point L71-9(line 71) the Hoare annotation is: true [2020-10-24 02:25:03,570 INFO L277 CegarLoopResult]: At program point L63-1(lines 63 84) the Hoare annotation is: true [2020-10-24 02:25:03,570 INFO L277 CegarLoopResult]: At program point L71-11(line 71) the Hoare annotation is: true [2020-10-24 02:25:03,570 INFO L277 CegarLoopResult]: At program point L63-3(lines 63 84) the Hoare annotation is: true [2020-10-24 02:25:03,570 INFO L277 CegarLoopResult]: At program point L71-12(line 71) the Hoare annotation is: true [2020-10-24 02:25:03,570 INFO L277 CegarLoopResult]: At program point L63-4(lines 63 84) the Hoare annotation is: true [2020-10-24 02:25:03,571 INFO L277 CegarLoopResult]: At program point L71-13(lines 65 83) the Hoare annotation is: true [2020-10-24 02:25:03,571 INFO L277 CegarLoopResult]: At program point L80(line 80) the Hoare annotation is: true [2020-10-24 02:25:03,571 INFO L277 CegarLoopResult]: At program point L64(line 64) the Hoare annotation is: true [2020-10-24 02:25:03,571 INFO L277 CegarLoopResult]: At program point L64-1(line 64) the Hoare annotation is: true [2020-10-24 02:25:03,571 INFO L277 CegarLoopResult]: At program point L73(lines 73 75) the Hoare annotation is: true [2020-10-24 02:25:03,571 INFO L277 CegarLoopResult]: At program point L65(line 65) the Hoare annotation is: true [2020-10-24 02:25:03,572 INFO L277 CegarLoopResult]: At program point L65-1(line 65) the Hoare annotation is: true [2020-10-24 02:25:03,572 INFO L277 CegarLoopResult]: At program point L65-2(lines 65 83) the Hoare annotation is: true [2020-10-24 02:25:03,572 INFO L277 CegarLoopResult]: At program point L65-3(line 65) the Hoare annotation is: true [2020-10-24 02:25:03,572 INFO L277 CegarLoopResult]: At program point L74(line 74) the Hoare annotation is: true [2020-10-24 02:25:03,572 INFO L277 CegarLoopResult]: At program point L66(line 66) the Hoare annotation is: true [2020-10-24 02:25:03,572 INFO L277 CegarLoopResult]: At program point parse_expression_listFINAL(lines 58 86) the Hoare annotation is: true [2020-10-24 02:25:03,572 INFO L270 CegarLoopResult]: At program point parse_expression_listENTRY(lines 58 86) the Hoare annotation is: (and (= |old(#length)| |#length|) (= |old(#valid)| |#valid|)) [2020-10-24 02:25:03,573 INFO L277 CegarLoopResult]: At program point L67-1(line 67) the Hoare annotation is: true [2020-10-24 02:25:03,573 INFO L277 CegarLoopResult]: At program point L67-2(line 67) the Hoare annotation is: true [2020-10-24 02:25:03,573 INFO L277 CegarLoopResult]: At program point L67-4(line 67) the Hoare annotation is: true [2020-10-24 02:25:03,573 INFO L277 CegarLoopResult]: At program point L67-5(line 67) the Hoare annotation is: true [2020-10-24 02:25:03,573 INFO L277 CegarLoopResult]: At program point L67-6(line 67) the Hoare annotation is: true [2020-10-24 02:25:03,573 INFO L277 CegarLoopResult]: At program point L67-7(line 67) the Hoare annotation is: true [2020-10-24 02:25:03,574 INFO L277 CegarLoopResult]: At program point parse_expression_listEXIT(lines 58 86) the Hoare annotation is: true [2020-10-24 02:25:03,574 INFO L277 CegarLoopResult]: At program point L67-8(line 67) the Hoare annotation is: true [2020-10-24 02:25:03,574 INFO L277 CegarLoopResult]: At program point L67-9(line 67) the Hoare annotation is: true [2020-10-24 02:25:03,574 INFO L270 CegarLoopResult]: At program point L67-11(line 67) the Hoare annotation is: |parse_expression_list_#t~short10| [2020-10-24 02:25:03,574 INFO L270 CegarLoopResult]: At program point L67-12(line 67) the Hoare annotation is: |parse_expression_list_#t~short10| [2020-10-24 02:25:03,574 INFO L270 CegarLoopResult]: At program point L67-13(line 67) the Hoare annotation is: |parse_expression_list_#t~short10| [2020-10-24 02:25:03,575 INFO L277 CegarLoopResult]: At program point L67-14(line 67) the Hoare annotation is: true [2020-10-24 02:25:03,575 INFO L277 CegarLoopResult]: At program point L67-15(line 67) the Hoare annotation is: true [2020-10-24 02:25:03,575 INFO L277 CegarLoopResult]: At program point L84(lines 63 84) the Hoare annotation is: true [2020-10-24 02:25:03,575 INFO L277 CegarLoopResult]: At program point L67-16(line 67) the Hoare annotation is: true [2020-10-24 02:25:03,575 INFO L277 CegarLoopResult]: At program point L84-1(line 84) the Hoare annotation is: true [2020-10-24 02:25:03,575 INFO L277 CegarLoopResult]: At program point L67-17(line 67) the Hoare annotation is: true [2020-10-24 02:25:03,575 INFO L277 CegarLoopResult]: At program point L84-2(line 84) the Hoare annotation is: true [2020-10-24 02:25:03,575 INFO L277 CegarLoopResult]: At program point L67-18(line 67) the Hoare annotation is: true [2020-10-24 02:25:03,576 INFO L270 CegarLoopResult]: At program point L76(line 76) the Hoare annotation is: (< parse_expression_list_~j~0 (+ parse_expression_list_~start~0 1)) [2020-10-24 02:25:03,576 INFO L270 CegarLoopResult]: At program point L76-1(line 76) the Hoare annotation is: (< parse_expression_list_~j~0 (+ parse_expression_list_~start~0 1)) [2020-10-24 02:25:03,576 INFO L277 CegarLoopResult]: At program point L68(line 68) the Hoare annotation is: true [2020-10-24 02:25:03,576 INFO L277 CegarLoopResult]: At program point L68-1(line 68) the Hoare annotation is: true [2020-10-24 02:25:03,576 INFO L277 CegarLoopResult]: At program point L68-2(line 68) the Hoare annotation is: true [2020-10-24 02:25:03,576 INFO L277 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-10-24 02:25:03,576 INFO L277 CegarLoopResult]: At program point L-1-1(line -1) the Hoare annotation is: true [2020-10-24 02:25:03,577 INFO L277 CegarLoopResult]: At program point ULTIMATE.initFINAL(line 12) the Hoare annotation is: true [2020-10-24 02:25:03,577 INFO L277 CegarLoopResult]: At program point L12(line 12) the Hoare annotation is: true [2020-10-24 02:25:03,577 INFO L277 CegarLoopResult]: At program point L12-1(line 12) the Hoare annotation is: true [2020-10-24 02:25:03,577 INFO L277 CegarLoopResult]: At program point L12-2(line 12) the Hoare annotation is: true [2020-10-24 02:25:03,577 INFO L270 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= |#t~string0.offset| |old(#t~string0.offset)|) (= |old(#length)| |#length|) (= |#t~string1.base| |old(#t~string1.base)|) (= |#NULL.base| |old(#NULL.base)|) (= |#t~string0.base| |old(#t~string0.base)|) (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#valid)| |#valid|) (= |#t~string1.offset| |old(#t~string1.offset)|)) [2020-10-24 02:25:03,577 INFO L277 CegarLoopResult]: At program point L12-3(line 12) the Hoare annotation is: true [2020-10-24 02:25:03,578 INFO L277 CegarLoopResult]: At program point ULTIMATE.initEXIT(line -1) the Hoare annotation is: true [2020-10-24 02:25:03,578 INFO L277 CegarLoopResult]: At program point r_strncpyFINAL(line 42) the Hoare annotation is: true [2020-10-24 02:25:03,578 INFO L277 CegarLoopResult]: At program point r_strncpyEXIT(line 42) the Hoare annotation is: true [2020-10-24 02:25:03,578 INFO L277 CegarLoopResult]: At program point L42(line 42) the Hoare annotation is: true [2020-10-24 02:25:03,578 INFO L277 CegarLoopResult]: At program point r_strncpyENTRY(line 42) the Hoare annotation is: true [2020-10-24 02:25:03,578 INFO L277 CegarLoopResult]: At program point L42-1(line 42) the Hoare annotation is: true [2020-10-24 02:25:03,578 INFO L277 CegarLoopResult]: At program point L42-2(line 42) the Hoare annotation is: true [2020-10-24 02:25:03,579 INFO L277 CegarLoopResult]: At program point L42-3(line 42) the Hoare annotation is: true [2020-10-24 02:25:03,579 INFO L277 CegarLoopResult]: At program point L42-4(line 42) the Hoare annotation is: true [2020-10-24 02:25:03,579 INFO L277 CegarLoopResult]: At program point ULTIMATE.startEXIT(line -1) the Hoare annotation is: true [2020-10-24 02:25:03,579 INFO L277 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-10-24 02:25:03,579 INFO L277 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-10-24 02:25:03,579 INFO L277 CegarLoopResult]: At program point ULTIMATE.startFINAL(line -1) the Hoare annotation is: true [2020-10-24 02:25:03,579 INFO L277 CegarLoopResult]: At program point L95(line 95) the Hoare annotation is: true [2020-10-24 02:25:03,580 INFO L277 CegarLoopResult]: At program point L93(line 93) the Hoare annotation is: true [2020-10-24 02:25:03,580 INFO L277 CegarLoopResult]: At program point L91(line 91) the Hoare annotation is: true [2020-10-24 02:25:03,580 INFO L277 CegarLoopResult]: At program point L91-1(line 91) the Hoare annotation is: true [2020-10-24 02:25:03,580 INFO L277 CegarLoopResult]: At program point L89(line 89) the Hoare annotation is: true [2020-10-24 02:25:03,580 INFO L277 CegarLoopResult]: At program point L91-2(line 91) the Hoare annotation is: true [2020-10-24 02:25:03,580 INFO L277 CegarLoopResult]: At program point mainEXIT(lines 87 96) the Hoare annotation is: true [2020-10-24 02:25:03,580 INFO L277 CegarLoopResult]: At program point L89-1(line 89) the Hoare annotation is: true [2020-10-24 02:25:03,581 INFO L277 CegarLoopResult]: At program point L89-2(line 89) the Hoare annotation is: true [2020-10-24 02:25:03,581 INFO L277 CegarLoopResult]: At program point mainFINAL(lines 87 96) the Hoare annotation is: true [2020-10-24 02:25:03,581 INFO L277 CegarLoopResult]: At program point L94(line 94) the Hoare annotation is: true [2020-10-24 02:25:03,581 INFO L270 CegarLoopResult]: At program point mainENTRY(lines 87 96) the Hoare annotation is: (and (= |old(#length)| |#length|) (= |old(#valid)| |#valid|)) [2020-10-24 02:25:03,581 INFO L277 CegarLoopResult]: At program point L94-1(line 94) the Hoare annotation is: true [2020-10-24 02:25:03,581 INFO L277 CegarLoopResult]: At program point L90-2(lines 90 92) the Hoare annotation is: true [2020-10-24 02:25:03,582 INFO L277 CegarLoopResult]: At program point L90-3(line 90) the Hoare annotation is: true [2020-10-24 02:25:03,582 INFO L277 CegarLoopResult]: At program point L90-4(line 90) the Hoare annotation is: true [2020-10-24 02:25:03,582 INFO L277 CegarLoopResult]: At program point L90-5(lines 90 92) the Hoare annotation is: true [2020-10-24 02:25:03,582 INFO L277 CegarLoopResult]: At program point L90-6(lines 90 92) the Hoare annotation is: true [2020-10-24 02:25:03,582 INFO L270 CegarLoopResult]: At program point L16(line 16) the Hoare annotation is: (= |__VERIFIER_assert_#in~cond| 0) [2020-10-24 02:25:03,582 INFO L270 CegarLoopResult]: At program point L15(lines 15 17) the Hoare annotation is: (or (= |__VERIFIER_assert_#in~cond| 0) (not (= __VERIFIER_assert_~cond 0))) [2020-10-24 02:25:03,582 INFO L270 CegarLoopResult]: At program point L16-1(line 16) the Hoare annotation is: (= |__VERIFIER_assert_#in~cond| 0) [2020-10-24 02:25:03,583 INFO L277 CegarLoopResult]: At program point __VERIFIER_assertENTRY(lines 14 19) the Hoare annotation is: true [2020-10-24 02:25:03,583 INFO L270 CegarLoopResult]: At program point L15-2(lines 14 19) the Hoare annotation is: (or (= |__VERIFIER_assert_#in~cond| 0) (not (= __VERIFIER_assert_~cond 0))) [2020-10-24 02:25:03,583 INFO L270 CegarLoopResult]: At program point __VERIFIER_assertEXIT(lines 14 19) the Hoare annotation is: (or (= |__VERIFIER_assert_#in~cond| 0) (not (= __VERIFIER_assert_~cond 0))) [2020-10-24 02:25:03,602 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 02:25:03 BoogieIcfgContainer [2020-10-24 02:25:03,602 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-24 02:25:03,605 INFO L168 Benchmark]: Toolchain (without parser) took 4681.70 ms. Allocated memory was 151.0 MB in the beginning and 181.4 MB in the end (delta: 30.4 MB). Free memory was 126.8 MB in the beginning and 111.0 MB in the end (delta: 15.8 MB). Peak memory consumption was 101.2 MB. Max. memory is 8.0 GB. [2020-10-24 02:25:03,606 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 125.8 MB. Free memory is still 98.2 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-10-24 02:25:03,607 INFO L168 Benchmark]: CACSL2BoogieTranslator took 415.79 ms. Allocated memory is still 151.0 MB. Free memory was 126.2 MB in the beginning and 114.6 MB in the end (delta: 11.5 MB). Peak memory consumption was 11.5 MB. Max. memory is 8.0 GB. [2020-10-24 02:25:03,608 INFO L168 Benchmark]: Boogie Preprocessor took 53.66 ms. Allocated memory is still 151.0 MB. Free memory was 114.6 MB in the beginning and 112.6 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2020-10-24 02:25:03,609 INFO L168 Benchmark]: RCFGBuilder took 907.01 ms. Allocated memory is still 151.0 MB. Free memory was 112.5 MB in the beginning and 103.7 MB in the end (delta: 8.8 MB). Peak memory consumption was 10.1 MB. Max. memory is 8.0 GB. [2020-10-24 02:25:03,610 INFO L168 Benchmark]: TraceAbstraction took 3285.89 ms. Allocated memory was 151.0 MB in the beginning and 181.4 MB in the end (delta: 30.4 MB). Free memory was 103.1 MB in the beginning and 111.0 MB in the end (delta: -7.9 MB). Peak memory consumption was 76.4 MB. Max. memory is 8.0 GB. [2020-10-24 02:25:03,614 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 125.8 MB. Free memory is still 98.2 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 415.79 ms. Allocated memory is still 151.0 MB. Free memory was 126.2 MB in the beginning and 114.6 MB in the end (delta: 11.5 MB). Peak memory consumption was 11.5 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 53.66 ms. Allocated memory is still 151.0 MB. Free memory was 114.6 MB in the beginning and 112.6 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 907.01 ms. Allocated memory is still 151.0 MB. Free memory was 112.5 MB in the beginning and 103.7 MB in the end (delta: 8.8 MB). Peak memory consumption was 10.1 MB. Max. memory is 8.0 GB. * TraceAbstraction took 3285.89 ms. Allocated memory was 151.0 MB in the beginning and 181.4 MB in the end (delta: 30.4 MB). Free memory was 103.1 MB in the beginning and 111.0 MB in the end (delta: -7.9 MB). Peak memory consumption was 76.4 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 12]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 63]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 67]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 70]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 90]: Loop Invariant Derived loop invariant: 1 - ProcedureContractResult [Line: 12]: Procedure Contract for reach_error Derived contract for procedure reach_error: 1 - ProcedureContractResult [Line: 58]: Procedure Contract for parse_expression_list Derived contract for procedure parse_expression_list: 1 - ProcedureContractResult [Line: 42]: Procedure Contract for r_strncpy Derived contract for procedure r_strncpy: 1 - ProcedureContractResult [Line: 87]: Procedure Contract for main Derived contract for procedure main: 1 - ProcedureContractResult [Line: 14]: Procedure Contract for __VERIFIER_assert Derived contract for procedure __VERIFIER_assert: \old(cond) == 0 || !(cond == 0) - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 145 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 2.5s, OverallIterations: 5, TraceHistogramMax: 2, AutomataDifference: 1.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.6s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 636 SDtfs, 106 SDslu, 817 SDs, 0 SdLazy, 737 SolverSat, 27 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 42 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=145occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 10 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 145 LocationsWithAnnotation, 507 PreInvPairs, 638 NumberOfFragments, 250 HoareAnnotationTreeSize, 507 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.2s HoareSimplificationTime, 145 FomulaSimplificationsInter, 419 FormulaSimplificationTreeSizeReductionInter, 0.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 370 NumberOfCodeBlocks, 370 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 365 ConstructedInterpolants, 0 QuantifiedInterpolants, 38773 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 4 PerfectInterpolantSequences, 18/19 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...