/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/loop-invgen/nested9.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-b7b32d2 [2021-02-22 02:23:03,256 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-02-22 02:23:03,259 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-02-22 02:23:03,292 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-02-22 02:23:03,305 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-02-22 02:23:03,306 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-02-22 02:23:03,308 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-02-22 02:23:03,309 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-02-22 02:23:03,310 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-02-22 02:23:03,311 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-02-22 02:23:03,313 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-02-22 02:23:03,316 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-02-22 02:23:03,317 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-02-22 02:23:03,319 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-02-22 02:23:03,320 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-02-22 02:23:03,321 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-02-22 02:23:03,336 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-02-22 02:23:03,347 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-02-22 02:23:03,348 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-02-22 02:23:03,349 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-02-22 02:23:03,350 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationWernerOverapprox_32.epf [2021-02-22 02:23:03,362 INFO L113 SettingsManager]: Loading preferences was successful [2021-02-22 02:23:03,363 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-02-22 02:23:03,364 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-02-22 02:23:03,365 INFO L138 SettingsManager]: * sizeof long=4 [2021-02-22 02:23:03,365 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-02-22 02:23:03,365 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-02-22 02:23:03,365 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-02-22 02:23:03,365 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-02-22 02:23:03,366 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-02-22 02:23:03,366 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-02-22 02:23:03,366 INFO L138 SettingsManager]: * sizeof long double=12 [2021-02-22 02:23:03,366 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-02-22 02:23:03,366 INFO L138 SettingsManager]: * Use constant arrays=true [2021-02-22 02:23:03,367 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-02-22 02:23:03,367 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-02-22 02:23:03,367 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2021-02-22 02:23:03,367 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-02-22 02:23:03,368 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-02-22 02:23:03,368 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-22 02:23:03,368 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-02-22 02:23:03,368 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2021-02-22 02:23:03,369 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-02-22 02:23:03,369 INFO L138 SettingsManager]: * Loop acceleration method that is used by accelerated interpolation=WERNER_OVERAPPROX [2021-02-22 02:23:03,369 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-02-22 02:23:03,729 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-02-22 02:23:03,756 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-02-22 02:23:03,759 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-02-22 02:23:03,761 INFO L271 PluginConnector]: Initializing CDTParser... [2021-02-22 02:23:03,762 INFO L275 PluginConnector]: CDTParser initialized [2021-02-22 02:23:03,763 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-invgen/nested9.i [2021-02-22 02:23:03,853 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/aaf473c1e/cdbf91cdfd3848368241b230e8f04f09/FLAG459fc3e23 [2021-02-22 02:23:04,549 INFO L306 CDTParser]: Found 1 translation units. [2021-02-22 02:23:04,550 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/nested9.i [2021-02-22 02:23:04,557 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/aaf473c1e/cdbf91cdfd3848368241b230e8f04f09/FLAG459fc3e23 [2021-02-22 02:23:04,923 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/aaf473c1e/cdbf91cdfd3848368241b230e8f04f09 [2021-02-22 02:23:04,929 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-02-22 02:23:04,945 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-02-22 02:23:04,947 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-02-22 02:23:04,947 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-02-22 02:23:04,951 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-02-22 02:23:04,952 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.02 02:23:04" (1/1) ... [2021-02-22 02:23:04,953 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2ff2530f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 02:23:04, skipping insertion in model container [2021-02-22 02:23:04,954 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.02 02:23:04" (1/1) ... [2021-02-22 02:23:04,962 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-02-22 02:23:04,979 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-02-22 02:23:05,169 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/nested9.i[893,906] [2021-02-22 02:23:05,185 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-22 02:23:05,197 INFO L203 MainTranslator]: Completed pre-run [2021-02-22 02:23:05,221 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/nested9.i[893,906] [2021-02-22 02:23:05,232 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-22 02:23:05,249 INFO L208 MainTranslator]: Completed translation [2021-02-22 02:23:05,250 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 02:23:05 WrapperNode [2021-02-22 02:23:05,250 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-02-22 02:23:05,251 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-02-22 02:23:05,251 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-02-22 02:23:05,252 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-02-22 02:23:05,265 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 02:23:05" (1/1) ... [2021-02-22 02:23:05,265 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 02:23:05" (1/1) ... [2021-02-22 02:23:05,272 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 02:23:05" (1/1) ... [2021-02-22 02:23:05,272 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 02:23:05" (1/1) ... [2021-02-22 02:23:05,278 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 02:23:05" (1/1) ... [2021-02-22 02:23:05,284 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 02:23:05" (1/1) ... [2021-02-22 02:23:05,286 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 02:23:05" (1/1) ... [2021-02-22 02:23:05,288 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-02-22 02:23:05,289 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-02-22 02:23:05,290 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-02-22 02:23:05,290 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-02-22 02:23:05,291 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 02:23:05" (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 [2021-02-22 02:23:05,388 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-02-22 02:23:05,389 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-02-22 02:23:05,389 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-02-22 02:23:05,389 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-02-22 02:23:05,389 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-02-22 02:23:05,389 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-02-22 02:23:05,389 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-02-22 02:23:05,390 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-02-22 02:23:05,390 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2021-02-22 02:23:05,390 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2021-02-22 02:23:05,390 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-02-22 02:23:05,390 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-02-22 02:23:05,390 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-02-22 02:23:05,391 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-02-22 02:23:05,391 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-02-22 02:23:05,391 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-02-22 02:23:05,391 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-02-22 02:23:05,391 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-02-22 02:23:05,391 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-02-22 02:23:05,392 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-02-22 02:23:05,392 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-02-22 02:23:05,393 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-02-22 02:23:05,755 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-02-22 02:23:05,756 INFO L299 CfgBuilder]: Removed 3 assume(true) statements. [2021-02-22 02:23:05,758 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.02 02:23:05 BoogieIcfgContainer [2021-02-22 02:23:05,758 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-02-22 02:23:05,760 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-02-22 02:23:05,761 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-02-22 02:23:05,771 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-02-22 02:23:05,773 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.02 02:23:04" (1/3) ... [2021-02-22 02:23:05,774 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e4efdde and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.02 02:23:05, skipping insertion in model container [2021-02-22 02:23:05,774 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 02:23:05" (2/3) ... [2021-02-22 02:23:05,774 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e4efdde and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.02 02:23:05, skipping insertion in model container [2021-02-22 02:23:05,775 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.02 02:23:05" (3/3) ... [2021-02-22 02:23:05,776 INFO L111 eAbstractionObserver]: Analyzing ICFG nested9.i [2021-02-22 02:23:05,795 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2021-02-22 02:23:05,807 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-02-22 02:23:05,830 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-02-22 02:23:05,856 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-02-22 02:23:05,856 INFO L377 AbstractCegarLoop]: Hoare is true [2021-02-22 02:23:05,857 INFO L378 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2021-02-22 02:23:05,857 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-02-22 02:23:05,857 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-02-22 02:23:05,857 INFO L381 AbstractCegarLoop]: Difference is false [2021-02-22 02:23:05,857 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-02-22 02:23:05,857 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-02-22 02:23:05,874 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states. [2021-02-22 02:23:05,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2021-02-22 02:23:05,886 INFO L414 BasicCegarLoop]: Found error trace [2021-02-22 02:23:05,887 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] [2021-02-22 02:23:05,887 INFO L428 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-22 02:23:05,894 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-22 02:23:05,895 INFO L82 PathProgramCache]: Analyzing trace with hash 674709827, now seen corresponding path program 1 times [2021-02-22 02:23:05,905 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-22 02:23:05,906 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [440203518] [2021-02-22 02:23:05,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-22 02:23:06,003 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-22 02:23:06,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:23:06,294 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:23:06,296 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:23:06,297 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:23:06,298 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 02:23:06,322 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:23:06,324 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-02-22 02:23:06,342 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:23:06,343 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-02-22 02:23:06,373 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:23:06,374 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-22 02:23:06,389 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:23:06,390 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-22 02:23:06,405 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:23:06,406 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:23:06,463 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-22 02:23:06,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:23:06,509 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:23:06,511 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:23:06,531 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-22 02:23:06,534 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [440203518] [2021-02-22 02:23:06,538 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-22 02:23:06,538 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-02-22 02:23:06,539 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1253372572] [2021-02-22 02:23:06,545 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-02-22 02:23:06,546 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-22 02:23:06,563 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-02-22 02:23:06,564 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-02-22 02:23:06,567 INFO L87 Difference]: Start difference. First operand 62 states. Second operand 8 states. [2021-02-22 02:23:07,149 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-22 02:23:07,150 INFO L93 Difference]: Finished difference Result 120 states and 151 transitions. [2021-02-22 02:23:07,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-02-22 02:23:07,152 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 41 [2021-02-22 02:23:07,152 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-22 02:23:07,162 INFO L225 Difference]: With dead ends: 120 [2021-02-22 02:23:07,162 INFO L226 Difference]: Without dead ends: 82 [2021-02-22 02:23:07,166 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=49, Invalid=133, Unknown=0, NotChecked=0, Total=182 [2021-02-22 02:23:07,185 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2021-02-22 02:23:07,225 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 71. [2021-02-22 02:23:07,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 71 states. [2021-02-22 02:23:07,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 77 transitions. [2021-02-22 02:23:07,230 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 77 transitions. Word has length 41 [2021-02-22 02:23:07,231 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-22 02:23:07,231 INFO L480 AbstractCegarLoop]: Abstraction has 71 states and 77 transitions. [2021-02-22 02:23:07,231 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2021-02-22 02:23:07,231 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 77 transitions. [2021-02-22 02:23:07,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2021-02-22 02:23:07,233 INFO L414 BasicCegarLoop]: Found error trace [2021-02-22 02:23:07,234 INFO L422 BasicCegarLoop]: trace histogram [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] [2021-02-22 02:23:07,234 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-02-22 02:23:07,234 INFO L428 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-22 02:23:07,235 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-22 02:23:07,235 INFO L82 PathProgramCache]: Analyzing trace with hash 231113735, now seen corresponding path program 1 times [2021-02-22 02:23:07,235 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-22 02:23:07,236 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1678274313] [2021-02-22 02:23:07,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-22 02:23:07,267 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:23:07,284 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-02-22 02:23:07,295 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:23:07,299 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-02-22 02:23:07,310 WARN L141 QuantifierPusher]: treesize reduction 6, result has 76.0 percent of original size [2021-02-22 02:23:07,325 INFO L723 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2021-02-22 02:23:07,333 INFO L730 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:23:07,334 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-22 02:23:07,338 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:23:07,346 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-02-22 02:23:07,354 WARN L147 QuantifierPusher]: treesize reduction 6, result has 76.0 percent of original size 19 [2021-02-22 02:23:07,360 WARN L141 QuantifierPusher]: treesize reduction 8, result has 80.0 percent of original size [2021-02-22 02:23:07,363 WARN L147 QuantifierPusher]: treesize reduction 8, result has 80.0 percent of original size 32 [2021-02-22 02:23:07,364 INFO L206 tedInterpolationCore]: Starting analysis with loop acceleration approximation PRECISE [2021-02-22 02:23:07,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:23:07,449 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:23:07,450 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:23:07,451 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:23:07,452 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-22 02:23:07,455 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:23:07,456 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-02-22 02:23:07,464 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:23:07,465 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-02-22 02:23:07,466 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:23:07,467 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-02-22 02:23:07,472 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:23:07,473 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-22 02:23:07,480 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:23:07,482 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-22 02:23:07,490 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:23:07,494 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:23:07,521 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-22 02:23:07,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:23:07,551 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:23:07,556 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:23:07,565 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-22 02:23:07,571 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:23:07,574 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-22 02:23:07,576 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:23:07,577 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-02-22 02:23:07,578 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-02-22 02:23:07,579 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:23:07,580 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 02:23:07,585 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:23:07,587 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-02-22 02:23:07,605 WARN L141 QuantifierPusher]: treesize reduction 1, result has 94.1 percent of original size [2021-02-22 02:23:07,607 WARN L147 QuantifierPusher]: treesize reduction 1, result has 94.1 percent of original size 16 [2021-02-22 02:23:07,627 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:23:07,628 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-02-22 02:23:07,656 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:23:07,661 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-02-22 02:23:07,700 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:23:07,702 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-02-22 02:23:07,731 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:23:07,733 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:23:07,733 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1678274313] [2021-02-22 02:23:07,733 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-22 02:23:07,734 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2021-02-22 02:23:07,734 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1381115370] [2021-02-22 02:23:07,736 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-02-22 02:23:07,737 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-22 02:23:07,739 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-02-22 02:23:07,740 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2021-02-22 02:23:07,740 INFO L87 Difference]: Start difference. First operand 71 states and 77 transitions. Second operand 13 states. [2021-02-22 02:23:08,591 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-22 02:23:08,592 INFO L93 Difference]: Finished difference Result 96 states and 110 transitions. [2021-02-22 02:23:08,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-02-22 02:23:08,592 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 47 [2021-02-22 02:23:08,593 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-22 02:23:08,593 INFO L225 Difference]: With dead ends: 96 [2021-02-22 02:23:08,594 INFO L226 Difference]: Without dead ends: 0 [2021-02-22 02:23:08,596 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 91 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=120, Invalid=530, Unknown=0, NotChecked=0, Total=650 [2021-02-22 02:23:08,596 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-02-22 02:23:08,597 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-02-22 02:23:08,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2021-02-22 02:23:08,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-02-22 02:23:08,597 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 47 [2021-02-22 02:23:08,597 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-22 02:23:08,597 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-02-22 02:23:08,598 INFO L481 AbstractCegarLoop]: Interpolant automaton has 13 states. [2021-02-22 02:23:08,598 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-02-22 02:23:08,598 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-02-22 02:23:08,598 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-02-22 02:23:08,600 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-02-22 02:23:09,151 INFO L189 CegarLoopUtils]: For program point reach_errorEXIT(line 12) no Hoare annotation was computed. [2021-02-22 02:23:09,152 INFO L189 CegarLoopUtils]: For program point reach_errorENTRY(line 12) no Hoare annotation was computed. [2021-02-22 02:23:09,152 INFO L189 CegarLoopUtils]: For program point L12-1(line 12) no Hoare annotation was computed. [2021-02-22 02:23:09,152 INFO L189 CegarLoopUtils]: For program point L12-2(line 12) no Hoare annotation was computed. [2021-02-22 02:23:09,152 INFO L189 CegarLoopUtils]: For program point L12-3(line 12) no Hoare annotation was computed. [2021-02-22 02:23:09,153 INFO L192 CegarLoopUtils]: At program point L-1(line -1) the Hoare annotation is: true [2021-02-22 02:23:09,153 INFO L192 CegarLoopUtils]: At program point L-1-1(line -1) the Hoare annotation is: true [2021-02-22 02:23:09,153 INFO L192 CegarLoopUtils]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2021-02-22 02:23:09,153 INFO L192 CegarLoopUtils]: At program point L12(line 12) the Hoare annotation is: true [2021-02-22 02:23:09,153 INFO L192 CegarLoopUtils]: At program point L12-1(line 12) the Hoare annotation is: true [2021-02-22 02:23:09,154 INFO L192 CegarLoopUtils]: At program point L12-2(line 12) the Hoare annotation is: true [2021-02-22 02:23:09,155 INFO L185 CegarLoopUtils]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= ~__BLAST_NONDET~0 |old(~__BLAST_NONDET~0)|) (= |#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)|)) [2021-02-22 02:23:09,155 INFO L192 CegarLoopUtils]: At program point L12-3(line 12) the Hoare annotation is: true [2021-02-22 02:23:09,155 INFO L192 CegarLoopUtils]: At program point L12-4(line 12) the Hoare annotation is: true [2021-02-22 02:23:09,155 INFO L192 CegarLoopUtils]: At program point ULTIMATE.initEXIT(line -1) the Hoare annotation is: true [2021-02-22 02:23:09,155 INFO L192 CegarLoopUtils]: At program point ULTIMATE.startEXIT(line -1) the Hoare annotation is: true [2021-02-22 02:23:09,156 INFO L192 CegarLoopUtils]: At program point L-1(line -1) the Hoare annotation is: true [2021-02-22 02:23:09,156 INFO L192 CegarLoopUtils]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2021-02-22 02:23:09,156 INFO L192 CegarLoopUtils]: At program point ULTIMATE.startFINAL(line -1) the Hoare annotation is: true [2021-02-22 02:23:09,156 INFO L189 CegarLoopUtils]: For program point L15(line 15) no Hoare annotation was computed. [2021-02-22 02:23:09,156 INFO L189 CegarLoopUtils]: For program point L15-1(line 15) no Hoare annotation was computed. [2021-02-22 02:23:09,156 INFO L189 CegarLoopUtils]: For program point assume_abort_if_notENTRY(lines 14 16) no Hoare annotation was computed. [2021-02-22 02:23:09,156 INFO L189 CegarLoopUtils]: For program point L15-3(lines 14 16) no Hoare annotation was computed. [2021-02-22 02:23:09,157 INFO L189 CegarLoopUtils]: For program point assume_abort_if_notEXIT(lines 14 16) no Hoare annotation was computed. [2021-02-22 02:23:09,157 INFO L185 CegarLoopUtils]: At program point L35-3(lines 35 37) the Hoare annotation is: (and (<= (+ main_~i~0 1) main_~n~0) (<= (+ main_~j~0 3) (+ main_~i~0 (* 2 main_~n~0)))) [2021-02-22 02:23:09,157 INFO L192 CegarLoopUtils]: At program point L31(line 31) the Hoare annotation is: true [2021-02-22 02:23:09,157 INFO L185 CegarLoopUtils]: At program point L35-4(line 35) the Hoare annotation is: (and (<= (+ main_~i~0 1) main_~n~0) (<= (+ main_~j~0 3) (+ main_~i~0 (* 2 main_~n~0)))) [2021-02-22 02:23:09,157 INFO L192 CegarLoopUtils]: At program point L31-1(line 31) the Hoare annotation is: true [2021-02-22 02:23:09,157 INFO L185 CegarLoopUtils]: At program point L35-5(line 35) the Hoare annotation is: (<= (+ main_~i~0 1) main_~n~0) [2021-02-22 02:23:09,158 INFO L185 CegarLoopUtils]: At program point L35-6(lines 35 37) the Hoare annotation is: (<= (+ main_~i~0 1) main_~n~0) [2021-02-22 02:23:09,158 INFO L192 CegarLoopUtils]: At program point L27(line 27) the Hoare annotation is: true [2021-02-22 02:23:09,158 INFO L192 CegarLoopUtils]: At program point L27-1(line 27) the Hoare annotation is: true [2021-02-22 02:23:09,158 INFO L192 CegarLoopUtils]: At program point L27-2(line 27) the Hoare annotation is: true [2021-02-22 02:23:09,158 INFO L192 CegarLoopUtils]: At program point mainEXIT(lines 25 40) the Hoare annotation is: true [2021-02-22 02:23:09,158 INFO L185 CegarLoopUtils]: At program point L36(line 36) the Hoare annotation is: (and (<= (+ main_~i~0 1) main_~n~0) (<= (+ main_~j~0 3) (+ main_~i~0 (* 2 main_~n~0)))) [2021-02-22 02:23:09,159 INFO L185 CegarLoopUtils]: At program point L36-3(line 36) the Hoare annotation is: (let ((.cse0 (+ main_~i~0 (* 2 main_~n~0)))) (and (<= (+ main_~k~0 4) .cse0) (<= (+ main_~i~0 1) main_~n~0) (<= (+ main_~j~0 3) .cse0))) [2021-02-22 02:23:09,159 INFO L192 CegarLoopUtils]: At program point L32(line 32) the Hoare annotation is: true [2021-02-22 02:23:09,159 INFO L185 CegarLoopUtils]: At program point L36-4(line 36) the Hoare annotation is: (and (<= (+ main_~i~0 1) main_~n~0) (<= (+ main_~j~0 3) (+ main_~i~0 (* 2 main_~n~0)))) [2021-02-22 02:23:09,159 INFO L192 CegarLoopUtils]: At program point L32-1(line 32) the Hoare annotation is: true [2021-02-22 02:23:09,159 INFO L185 CegarLoopUtils]: At program point L36-5(lines 36 37) the Hoare annotation is: (and (<= (+ main_~i~0 1) main_~n~0) (<= (+ main_~j~0 3) (+ main_~i~0 (* 2 main_~n~0)))) [2021-02-22 02:23:09,160 INFO L192 CegarLoopUtils]: At program point L28(line 28) the Hoare annotation is: true [2021-02-22 02:23:09,160 INFO L192 CegarLoopUtils]: At program point L28-1(line 28) the Hoare annotation is: true [2021-02-22 02:23:09,160 INFO L192 CegarLoopUtils]: At program point L28-2(line 28) the Hoare annotation is: true [2021-02-22 02:23:09,160 INFO L185 CegarLoopUtils]: At program point L37(line 37) the Hoare annotation is: (let ((.cse0 (+ main_~i~0 (* 2 main_~n~0)))) (and (<= (+ main_~k~0 4) .cse0) (<= (+ main_~i~0 1) main_~n~0) (<= (+ main_~j~0 3) .cse0))) [2021-02-22 02:23:09,160 INFO L185 CegarLoopUtils]: At program point L37-1(lines 36 37) the Hoare annotation is: (let ((.cse0 (+ main_~i~0 (* 2 main_~n~0)))) (and (<= (+ main_~k~0 4) .cse0) (<= (+ main_~i~0 1) main_~n~0) (<= (+ main_~j~0 3) .cse0))) [2021-02-22 02:23:09,161 INFO L192 CegarLoopUtils]: At program point L33(line 33) the Hoare annotation is: true [2021-02-22 02:23:09,161 INFO L192 CegarLoopUtils]: At program point L33-1(line 33) the Hoare annotation is: true [2021-02-22 02:23:09,161 INFO L192 CegarLoopUtils]: At program point L29(line 29) the Hoare annotation is: true [2021-02-22 02:23:09,161 INFO L192 CegarLoopUtils]: At program point L29-1(line 29) the Hoare annotation is: true [2021-02-22 02:23:09,161 INFO L192 CegarLoopUtils]: At program point L29-2(line 29) the Hoare annotation is: true [2021-02-22 02:23:09,162 INFO L192 CegarLoopUtils]: At program point mainFINAL(lines 25 40) the Hoare annotation is: true [2021-02-22 02:23:09,162 INFO L192 CegarLoopUtils]: At program point L38(lines 25 40) the Hoare annotation is: true [2021-02-22 02:23:09,162 INFO L185 CegarLoopUtils]: At program point L34-2(lines 34 37) the Hoare annotation is: (<= (+ main_~i~0 1) main_~n~0) [2021-02-22 02:23:09,162 INFO L185 CegarLoopUtils]: At program point L34-3(line 34) the Hoare annotation is: (<= (+ main_~i~0 1) main_~n~0) [2021-02-22 02:23:09,162 INFO L192 CegarLoopUtils]: At program point L30(line 30) the Hoare annotation is: true [2021-02-22 02:23:09,162 INFO L192 CegarLoopUtils]: At program point L34-4(line 34) the Hoare annotation is: true [2021-02-22 02:23:09,162 INFO L192 CegarLoopUtils]: At program point mainENTRY(lines 25 40) the Hoare annotation is: true [2021-02-22 02:23:09,163 INFO L192 CegarLoopUtils]: At program point L30-1(line 30) the Hoare annotation is: true [2021-02-22 02:23:09,163 INFO L192 CegarLoopUtils]: At program point L34-5(lines 34 37) the Hoare annotation is: true [2021-02-22 02:23:09,163 INFO L192 CegarLoopUtils]: At program point L26(line 26) the Hoare annotation is: true [2021-02-22 02:23:09,163 INFO L192 CegarLoopUtils]: At program point L26-1(line 26) the Hoare annotation is: true [2021-02-22 02:23:09,163 INFO L192 CegarLoopUtils]: At program point L26-2(line 26) the Hoare annotation is: true [2021-02-22 02:23:09,163 INFO L192 CegarLoopUtils]: At program point L26-3(line 26) the Hoare annotation is: true [2021-02-22 02:23:09,163 INFO L192 CegarLoopUtils]: At program point L26-4(line 26) the Hoare annotation is: true [2021-02-22 02:23:09,164 INFO L185 CegarLoopUtils]: At program point L35(line 35) the Hoare annotation is: (<= (+ main_~i~0 1) main_~n~0) [2021-02-22 02:23:09,164 INFO L185 CegarLoopUtils]: At program point L18-2(lines 17 22) the Hoare annotation is: (or (= |__VERIFIER_assert_#in~cond| 0) (not (= __VERIFIER_assert_~cond 0))) [2021-02-22 02:23:09,164 INFO L192 CegarLoopUtils]: At program point __VERIFIER_assertENTRY(lines 17 22) the Hoare annotation is: true [2021-02-22 02:23:09,164 INFO L185 CegarLoopUtils]: At program point __VERIFIER_assertEXIT(lines 17 22) the Hoare annotation is: (or (= |__VERIFIER_assert_#in~cond| 0) (not (= __VERIFIER_assert_~cond 0))) [2021-02-22 02:23:09,164 INFO L185 CegarLoopUtils]: At program point L19(line 19) the Hoare annotation is: (= |__VERIFIER_assert_#in~cond| 0) [2021-02-22 02:23:09,164 INFO L185 CegarLoopUtils]: At program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 19) the Hoare annotation is: (= |__VERIFIER_assert_#in~cond| 0) [2021-02-22 02:23:09,165 INFO L185 CegarLoopUtils]: At program point L18(lines 18 20) the Hoare annotation is: (or (= |__VERIFIER_assert_#in~cond| 0) (not (= __VERIFIER_assert_~cond 0))) [2021-02-22 02:23:09,165 INFO L185 CegarLoopUtils]: At program point L19-1(line 19) the Hoare annotation is: (= |__VERIFIER_assert_#in~cond| 0) [2021-02-22 02:23:09,188 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.02 02:23:09 BoogieIcfgContainer [2021-02-22 02:23:09,192 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-02-22 02:23:09,194 INFO L168 Benchmark]: Toolchain (without parser) took 4262.29 ms. Allocated memory was 151.0 MB in the beginning and 181.4 MB in the end (delta: 30.4 MB). Free memory was 127.8 MB in the beginning and 110.9 MB in the end (delta: 16.9 MB). Peak memory consumption was 98.1 MB. Max. memory is 8.0 GB. [2021-02-22 02:23:09,194 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 151.0 MB. Free memory is still 125.8 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-02-22 02:23:09,200 INFO L168 Benchmark]: CACSL2BoogieTranslator took 303.25 ms. Allocated memory is still 151.0 MB. Free memory was 126.8 MB in the beginning and 117.1 MB in the end (delta: 9.8 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. [2021-02-22 02:23:09,201 INFO L168 Benchmark]: Boogie Preprocessor took 37.31 ms. Allocated memory is still 151.0 MB. Free memory was 117.1 MB in the beginning and 115.5 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-02-22 02:23:09,206 INFO L168 Benchmark]: RCFGBuilder took 468.80 ms. Allocated memory is still 151.0 MB. Free memory was 115.5 MB in the beginning and 128.4 MB in the end (delta: -12.9 MB). Peak memory consumption was 17.7 MB. Max. memory is 8.0 GB. [2021-02-22 02:23:09,207 INFO L168 Benchmark]: TraceAbstraction took 3431.48 ms. Allocated memory was 151.0 MB in the beginning and 181.4 MB in the end (delta: 30.4 MB). Free memory was 127.9 MB in the beginning and 110.9 MB in the end (delta: 17.0 MB). Peak memory consumption was 97.2 MB. Max. memory is 8.0 GB. [2021-02-22 02:23:09,212 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 151.0 MB. Free memory is still 125.8 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 303.25 ms. Allocated memory is still 151.0 MB. Free memory was 126.8 MB in the beginning and 117.1 MB in the end (delta: 9.8 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 37.31 ms. Allocated memory is still 151.0 MB. Free memory was 117.1 MB in the beginning and 115.5 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 468.80 ms. Allocated memory is still 151.0 MB. Free memory was 115.5 MB in the beginning and 128.4 MB in the end (delta: -12.9 MB). Peak memory consumption was 17.7 MB. Max. memory is 8.0 GB. * TraceAbstraction took 3431.48 ms. Allocated memory was 151.0 MB in the beginning and 181.4 MB in the end (delta: 30.4 MB). Free memory was 127.9 MB in the beginning and 110.9 MB in the end (delta: 17.0 MB). Peak memory consumption was 97.2 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 19]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 25]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 35]: Loop Invariant Derived loop invariant: i + 1 <= n - InvariantResult [Line: 34]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 36]: Loop Invariant Derived loop invariant: i + 1 <= n && j + 3 <= i + 2 * n - ProcedureContractResult [Line: 25]: Procedure Contract for main Derived contract for procedure main: 1 - ProcedureContractResult [Line: 17]: Procedure Contract for __VERIFIER_assert Derived contract for procedure __VERIFIER_assert: \old(cond) == 0 || !(cond == 0) - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 72 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 2.7s, OverallIterations: 2, TraceHistogramMax: 2, AutomataDifference: 1.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.5s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 98 SDtfs, 229 SDslu, 157 SDs, 0 SdLazy, 564 SolverSat, 25 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 46 GetRequests, 9 SyntacticMatches, 1 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 115 ImplicationChecksByTransitivity, 0.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=71occurred in iteration=1, 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, 2 MinimizatonAttempts, 11 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 62 LocationsWithAnnotation, 104 PreInvPairs, 178 NumberOfFragments, 275 HoareAnnotationTreeSize, 104 FomulaSimplifications, 3366 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 62 FomulaSimplificationsInter, 1243 FormulaSimplificationTreeSizeReductionInter, 0.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: No data available, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...