/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/acceleratedInterpolationJordan_32.epf -i ../../../trunk/examples/svcomp/nla-digbench-scaling/divbin_unwindbound100.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-a47f07a [2021-04-16 08:05:33,394 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-04-16 08:05:33,396 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-04-16 08:05:33,443 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-04-16 08:05:33,444 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-04-16 08:05:33,447 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-04-16 08:05:33,450 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-04-16 08:05:33,456 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-04-16 08:05:33,459 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-04-16 08:05:33,464 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-04-16 08:05:33,465 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-04-16 08:05:33,466 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-04-16 08:05:33,467 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-04-16 08:05:33,469 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-04-16 08:05:33,470 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-04-16 08:05:33,471 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-04-16 08:05:33,472 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-04-16 08:05:33,473 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-04-16 08:05:33,476 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-04-16 08:05:33,479 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-04-16 08:05:33,481 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-04-16 08:05:33,486 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-04-16 08:05:33,487 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-04-16 08:05:33,488 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-04-16 08:05:33,490 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-04-16 08:05:33,490 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-04-16 08:05:33,491 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-04-16 08:05:33,491 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-04-16 08:05:33,492 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-04-16 08:05:33,492 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-04-16 08:05:33,493 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-04-16 08:05:33,493 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-04-16 08:05:33,494 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-04-16 08:05:33,495 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-04-16 08:05:33,495 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-04-16 08:05:33,496 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-04-16 08:05:33,496 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-04-16 08:05:33,497 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-04-16 08:05:33,497 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-04-16 08:05:33,498 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-04-16 08:05:33,498 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-04-16 08:05:33,507 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationJordan_32.epf [2021-04-16 08:05:33,523 INFO L113 SettingsManager]: Loading preferences was successful [2021-04-16 08:05:33,523 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-04-16 08:05:33,527 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-04-16 08:05:33,527 INFO L138 SettingsManager]: * sizeof long=4 [2021-04-16 08:05:33,527 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-04-16 08:05:33,527 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-04-16 08:05:33,527 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-04-16 08:05:33,528 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-04-16 08:05:33,528 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-04-16 08:05:33,528 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-04-16 08:05:33,529 INFO L138 SettingsManager]: * sizeof long double=12 [2021-04-16 08:05:33,529 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-04-16 08:05:33,529 INFO L138 SettingsManager]: * Use constant arrays=true [2021-04-16 08:05:33,529 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-04-16 08:05:33,529 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-04-16 08:05:33,530 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-04-16 08:05:33,530 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-04-16 08:05:33,530 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-04-16 08:05:33,530 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-04-16 08:05:33,530 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-04-16 08:05:33,530 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2021-04-16 08:05:33,531 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-04-16 08:05:33,531 INFO L138 SettingsManager]: * Loop acceleration method that is used by accelerated interpolation=JORDAN [2021-04-16 08:05:33,531 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-04-16 08:05:33,804 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-04-16 08:05:33,828 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-04-16 08:05:33,830 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-04-16 08:05:33,831 INFO L271 PluginConnector]: Initializing CDTParser... [2021-04-16 08:05:33,832 INFO L275 PluginConnector]: CDTParser initialized [2021-04-16 08:05:33,833 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/nla-digbench-scaling/divbin_unwindbound100.i [2021-04-16 08:05:33,897 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/826966f52/b6476a95a5ef4e60b6468c669c173cb3/FLAG909e8cd9a [2021-04-16 08:05:34,398 INFO L306 CDTParser]: Found 1 translation units. [2021-04-16 08:05:34,399 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/nla-digbench-scaling/divbin_unwindbound100.i [2021-04-16 08:05:34,406 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/826966f52/b6476a95a5ef4e60b6468c669c173cb3/FLAG909e8cd9a [2021-04-16 08:05:34,889 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/826966f52/b6476a95a5ef4e60b6468c669c173cb3 [2021-04-16 08:05:34,903 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-04-16 08:05:34,906 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-04-16 08:05:34,923 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-04-16 08:05:34,924 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-04-16 08:05:34,928 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-04-16 08:05:34,929 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.04 08:05:34" (1/1) ... [2021-04-16 08:05:34,930 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7a9e155d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.04 08:05:34, skipping insertion in model container [2021-04-16 08:05:34,931 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.04 08:05:34" (1/1) ... [2021-04-16 08:05:34,942 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-04-16 08:05:34,981 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-04-16 08:05:35,093 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/nla-digbench-scaling/divbin_unwindbound100.i[958,971] [2021-04-16 08:05:35,106 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-04-16 08:05:35,113 INFO L203 MainTranslator]: Completed pre-run [2021-04-16 08:05:35,160 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/nla-digbench-scaling/divbin_unwindbound100.i[958,971] [2021-04-16 08:05:35,166 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-04-16 08:05:35,187 INFO L208 MainTranslator]: Completed translation [2021-04-16 08:05:35,188 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.04 08:05:35 WrapperNode [2021-04-16 08:05:35,188 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-04-16 08:05:35,189 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-04-16 08:05:35,189 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-04-16 08:05:35,189 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-04-16 08:05:35,198 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.04 08:05:35" (1/1) ... [2021-04-16 08:05:35,198 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.04 08:05:35" (1/1) ... [2021-04-16 08:05:35,203 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.04 08:05:35" (1/1) ... [2021-04-16 08:05:35,204 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.04 08:05:35" (1/1) ... [2021-04-16 08:05:35,208 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.04 08:05:35" (1/1) ... [2021-04-16 08:05:35,211 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.04 08:05:35" (1/1) ... [2021-04-16 08:05:35,212 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.04 08:05:35" (1/1) ... [2021-04-16 08:05:35,214 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-04-16 08:05:35,215 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-04-16 08:05:35,215 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-04-16 08:05:35,215 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-04-16 08:05:35,216 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.04 08:05:35" (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 [2021-04-16 08:05:35,287 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-04-16 08:05:35,288 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-04-16 08:05:35,288 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-04-16 08:05:35,288 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-04-16 08:05:35,288 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-04-16 08:05:35,288 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-04-16 08:05:35,288 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-04-16 08:05:35,289 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-04-16 08:05:35,289 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2021-04-16 08:05:35,289 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2021-04-16 08:05:35,289 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-04-16 08:05:35,289 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-04-16 08:05:35,289 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_unsigned_int [2021-04-16 08:05:35,290 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-04-16 08:05:35,290 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-04-16 08:05:35,290 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-04-16 08:05:35,290 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-04-16 08:05:35,291 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-04-16 08:05:35,291 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-04-16 08:05:35,291 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-04-16 08:05:35,292 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-04-16 08:05:35,292 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-04-16 08:05:35,628 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-04-16 08:05:35,629 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2021-04-16 08:05:35,630 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.04 08:05:35 BoogieIcfgContainer [2021-04-16 08:05:35,630 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-04-16 08:05:35,631 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-04-16 08:05:35,631 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-04-16 08:05:35,634 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-04-16 08:05:35,634 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.04 08:05:34" (1/3) ... [2021-04-16 08:05:35,635 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@47c29e84 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.04 08:05:35, skipping insertion in model container [2021-04-16 08:05:35,635 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.04 08:05:35" (2/3) ... [2021-04-16 08:05:35,635 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@47c29e84 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.04 08:05:35, skipping insertion in model container [2021-04-16 08:05:35,636 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.04 08:05:35" (3/3) ... [2021-04-16 08:05:35,637 INFO L111 eAbstractionObserver]: Analyzing ICFG divbin_unwindbound100.i [2021-04-16 08:05:35,642 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2021-04-16 08:05:35,645 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-04-16 08:05:35,661 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-04-16 08:05:35,687 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-04-16 08:05:35,687 INFO L377 AbstractCegarLoop]: Hoare is true [2021-04-16 08:05:35,687 INFO L378 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2021-04-16 08:05:35,688 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-04-16 08:05:35,688 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-04-16 08:05:35,688 INFO L381 AbstractCegarLoop]: Difference is false [2021-04-16 08:05:35,688 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-04-16 08:05:35,688 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-04-16 08:05:35,705 INFO L276 IsEmpty]: Start isEmpty. Operand has 33 states, 21 states have (on average 1.4761904761904763) internal successors, (31), 22 states have internal predecessors, (31), 6 states have call successors, (6), 4 states have call predecessors, (6), 4 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2021-04-16 08:05:35,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-04-16 08:05:35,717 INFO L511 BasicCegarLoop]: Found error trace [2021-04-16 08:05:35,717 INFO L519 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-16 08:05:35,718 INFO L428 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-16 08:05:35,722 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-16 08:05:35,723 INFO L82 PathProgramCache]: Analyzing trace with hash 878397729, now seen corresponding path program 1 times [2021-04-16 08:05:35,730 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-04-16 08:05:35,730 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [521518195] [2021-04-16 08:05:35,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-16 08:05:35,792 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-04-16 08:05:35,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-16 08:05:35,926 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 08:05:35,927 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 08:05:35,929 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 08:05:35,930 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 08:05:36,000 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-04-16 08:05:36,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-16 08:05:36,027 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 08:05:36,028 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 08:05:36,029 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-04-16 08:05:36,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-16 08:05:36,035 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 08:05:36,036 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 08:05:36,037 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 08:05:36,037 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 08:05:36,038 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-04-16 08:05:36,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-16 08:05:36,057 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 08:05:36,058 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 08:05:36,060 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 08:05:36,065 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 08:05:36,067 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-04-16 08:05:36,068 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [521518195] [2021-04-16 08:05:36,070 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-16 08:05:36,070 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-04-16 08:05:36,070 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [261573081] [2021-04-16 08:05:36,074 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-04-16 08:05:36,074 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-04-16 08:05:36,083 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-04-16 08:05:36,084 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-04-16 08:05:36,086 INFO L87 Difference]: Start difference. First operand has 33 states, 21 states have (on average 1.4761904761904763) internal successors, (31), 22 states have internal predecessors, (31), 6 states have call successors, (6), 4 states have call predecessors, (6), 4 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) Second operand has 3 states, 3 states have (on average 4.0) internal successors, (12), 2 states have internal predecessors, (12), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2021-04-16 08:05:36,168 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-16 08:05:36,168 INFO L93 Difference]: Finished difference Result 60 states and 84 transitions. [2021-04-16 08:05:36,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-16 08:05:36,170 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 2 states have internal predecessors, (12), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 23 [2021-04-16 08:05:36,170 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-16 08:05:36,177 INFO L225 Difference]: With dead ends: 60 [2021-04-16 08:05:36,177 INFO L226 Difference]: Without dead ends: 29 [2021-04-16 08:05:36,180 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 69.2ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-04-16 08:05:36,193 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2021-04-16 08:05:36,227 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 28. [2021-04-16 08:05:36,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 18 states have (on average 1.3333333333333333) internal successors, (24), 19 states have internal predecessors, (24), 6 states have call successors, (6), 4 states have call predecessors, (6), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2021-04-16 08:05:36,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 34 transitions. [2021-04-16 08:05:36,231 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 34 transitions. Word has length 23 [2021-04-16 08:05:36,231 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-16 08:05:36,231 INFO L480 AbstractCegarLoop]: Abstraction has 28 states and 34 transitions. [2021-04-16 08:05:36,232 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 2 states have internal predecessors, (12), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2021-04-16 08:05:36,232 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 34 transitions. [2021-04-16 08:05:36,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-04-16 08:05:36,233 INFO L511 BasicCegarLoop]: Found error trace [2021-04-16 08:05:36,233 INFO L519 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-16 08:05:36,234 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-04-16 08:05:36,234 INFO L428 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-16 08:05:36,235 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-16 08:05:36,235 INFO L82 PathProgramCache]: Analyzing trace with hash 994169231, now seen corresponding path program 1 times [2021-04-16 08:05:36,235 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-04-16 08:05:36,235 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1212643422] [2021-04-16 08:05:36,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-16 08:05:36,238 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-04-16 08:05:36,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-16 08:05:36,313 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 08:05:36,317 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-16 08:05:36,381 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 08:05:36,384 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-16 08:05:36,389 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 08:05:36,391 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-16 08:05:36,453 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 08:05:36,457 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 08:05:36,571 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-04-16 08:05:36,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-16 08:05:36,581 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 08:05:36,582 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-16 08:05:36,582 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-04-16 08:05:36,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-16 08:05:36,599 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 08:05:36,609 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 08:05:36,609 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-04-16 08:05:36,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-16 08:05:36,621 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 08:05:36,622 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 08:05:36,622 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-04-16 08:05:36,622 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1212643422] [2021-04-16 08:05:36,623 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-16 08:05:36,623 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-04-16 08:05:36,623 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1420209328] [2021-04-16 08:05:36,624 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-04-16 08:05:36,624 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-04-16 08:05:36,625 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-04-16 08:05:36,625 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-04-16 08:05:36,625 INFO L87 Difference]: Start difference. First operand 28 states and 34 transitions. Second operand has 5 states, 5 states have (on average 2.8) internal successors, (14), 4 states have internal predecessors, (14), 3 states have call successors, (5), 4 states have call predecessors, (5), 2 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2021-04-16 08:05:36,760 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-16 08:05:36,760 INFO L93 Difference]: Finished difference Result 42 states and 52 transitions. [2021-04-16 08:05:36,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-04-16 08:05:36,761 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.8) internal successors, (14), 4 states have internal predecessors, (14), 3 states have call successors, (5), 4 states have call predecessors, (5), 2 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) Word has length 25 [2021-04-16 08:05:36,761 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-16 08:05:36,762 INFO L225 Difference]: With dead ends: 42 [2021-04-16 08:05:36,762 INFO L226 Difference]: Without dead ends: 30 [2021-04-16 08:05:36,764 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 264.4ms TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-04-16 08:05:36,764 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2021-04-16 08:05:36,772 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2021-04-16 08:05:36,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 20 states have (on average 1.3) internal successors, (26), 21 states have internal predecessors, (26), 6 states have call successors, (6), 4 states have call predecessors, (6), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2021-04-16 08:05:36,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 36 transitions. [2021-04-16 08:05:36,773 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 36 transitions. Word has length 25 [2021-04-16 08:05:36,774 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-16 08:05:36,774 INFO L480 AbstractCegarLoop]: Abstraction has 30 states and 36 transitions. [2021-04-16 08:05:36,774 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 2.8) internal successors, (14), 4 states have internal predecessors, (14), 3 states have call successors, (5), 4 states have call predecessors, (5), 2 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2021-04-16 08:05:36,774 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 36 transitions. [2021-04-16 08:05:36,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-04-16 08:05:36,775 INFO L511 BasicCegarLoop]: Found error trace [2021-04-16 08:05:36,775 INFO L519 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-16 08:05:36,775 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-04-16 08:05:36,775 INFO L428 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-16 08:05:36,776 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-16 08:05:36,776 INFO L82 PathProgramCache]: Analyzing trace with hash 422434646, now seen corresponding path program 1 times [2021-04-16 08:05:36,776 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-04-16 08:05:36,776 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1621394426] [2021-04-16 08:05:36,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-16 08:05:36,778 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-04-16 08:05:36,790 WARN L167 FreeRefinementEngine]: Strategy FIXED_PREFERENCES was unsuccessful and could not determine trace feasibility [2021-04-16 08:05:36,791 INFO L620 BasicCegarLoop]: Counterexample might be feasible [2021-04-16 08:05:36,794 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-04-16 08:05:36,805 WARN L227 ceAbstractionStarter]: Unable to decide correctness. Please check the following counterexample manually. [2021-04-16 08:05:36,806 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.04 08:05:36 BoogieIcfgContainer [2021-04-16 08:05:36,806 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-04-16 08:05:36,807 INFO L168 Benchmark]: Toolchain (without parser) took 1900.94 ms. Allocated memory is still 205.5 MB. Free memory was 171.6 MB in the beginning and 169.4 MB in the end (delta: 2.2 MB). Peak memory consumption was 3.4 MB. Max. memory is 8.0 GB. [2021-04-16 08:05:36,807 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 205.5 MB. Free memory was 188.7 MB in the beginning and 188.6 MB in the end (delta: 113.3 kB). There was no memory consumed. Max. memory is 8.0 GB. [2021-04-16 08:05:36,808 INFO L168 Benchmark]: CACSL2BoogieTranslator took 264.72 ms. Allocated memory is still 205.5 MB. Free memory was 171.4 MB in the beginning and 189.0 MB in the end (delta: -17.6 MB). Peak memory consumption was 13.8 MB. Max. memory is 8.0 GB. [2021-04-16 08:05:36,808 INFO L168 Benchmark]: Boogie Preprocessor took 25.17 ms. Allocated memory is still 205.5 MB. Free memory was 189.0 MB in the beginning and 187.4 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-04-16 08:05:36,809 INFO L168 Benchmark]: RCFGBuilder took 415.10 ms. Allocated memory is still 205.5 MB. Free memory was 187.4 MB in the beginning and 171.7 MB in the end (delta: 15.7 MB). Peak memory consumption was 15.7 MB. Max. memory is 8.0 GB. [2021-04-16 08:05:36,809 INFO L168 Benchmark]: TraceAbstraction took 1174.34 ms. Allocated memory is still 205.5 MB. Free memory was 171.2 MB in the beginning and 169.4 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.2 MB. Max. memory is 8.0 GB. [2021-04-16 08:05:36,812 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 205.5 MB. Free memory was 188.7 MB in the beginning and 188.6 MB in the end (delta: 113.3 kB). There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 264.72 ms. Allocated memory is still 205.5 MB. Free memory was 171.4 MB in the beginning and 189.0 MB in the end (delta: -17.6 MB). Peak memory consumption was 13.8 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 25.17 ms. Allocated memory is still 205.5 MB. Free memory was 189.0 MB in the beginning and 187.4 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 415.10 ms. Allocated memory is still 205.5 MB. Free memory was 187.4 MB in the beginning and 171.7 MB in the end (delta: 15.7 MB). Peak memory consumption was 15.7 MB. Max. memory is 8.0 GB. * TraceAbstraction took 1174.34 ms. Allocated memory is still 205.5 MB. Free memory was 171.2 MB in the beginning and 169.4 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.2 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 21]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: unable to decide satisfiability of path constraint. Possible FailurePath: [L25] int counter = 0; [L27] unsigned A, B; [L28] unsigned q, r, b; [L29] A = __VERIFIER_nondet_unsigned_int() [L30] B = __VERIFIER_nondet_unsigned_int() [L31] CALL assume_abort_if_not(B < (0x7fffffff * 2U + 1U)/2) [L16] COND FALSE !(!cond) [L31] RET assume_abort_if_not(B < (0x7fffffff * 2U + 1U)/2) [L32] CALL assume_abort_if_not(B >= 1) [L16] COND FALSE !(!cond) [L32] RET assume_abort_if_not(B >= 1) [L33] q = 0 [L34] r = A [L35] b = B [L36] EXPR counter++ [L36] COND TRUE counter++<100 [L37] COND TRUE !(r >= b) [L40] EXPR counter++ [L40] COND FALSE !(counter++<100) [L50] CALL __VERIFIER_assert(A == q * b + r) [L19] COND TRUE !(cond) [L21] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 36 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNKNOWN, OverallTime: 1109.9ms, OverallIterations: 3, TraceHistogramMax: 2, EmptinessCheckTime: 18.7ms, AutomataDifference: 244.6ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 11.9ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 64 SDtfs, 23 SDslu, 35 SDs, 0 SdLazy, 66 SolverSat, 14 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 108.0ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 22 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 333.6ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=33occurred in iteration=0, InterpolantAutomatonStates: 9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 48.1ms AutomataMinimizationTime, 2 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, 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 could not prove your program: unable to determine feasibility of some traces Received shutdown request...