/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data --core.log.level.for.class de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationJordan_32.epf -i ../../../trunk/examples/svcomp/loop-invariants/bin-suffix-5.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-c225d54 [2021-05-03 00:26:04,254 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-05-03 00:26:04,255 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-05-03 00:26:04,281 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-05-03 00:26:04,281 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-05-03 00:26:04,282 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-05-03 00:26:04,283 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-05-03 00:26:04,289 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-05-03 00:26:04,291 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-05-03 00:26:04,294 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-05-03 00:26:04,295 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-05-03 00:26:04,295 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-05-03 00:26:04,295 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-05-03 00:26:04,296 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-05-03 00:26:04,296 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-05-03 00:26:04,297 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-05-03 00:26:04,297 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-05-03 00:26:04,298 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-05-03 00:26:04,299 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-05-03 00:26:04,300 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-05-03 00:26:04,301 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-05-03 00:26:04,303 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-05-03 00:26:04,304 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-05-03 00:26:04,307 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-05-03 00:26:04,315 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-05-03 00:26:04,315 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-05-03 00:26:04,316 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-05-03 00:26:04,316 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-05-03 00:26:04,316 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-05-03 00:26:04,317 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-05-03 00:26:04,317 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-05-03 00:26:04,318 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-05-03 00:26:04,318 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-05-03 00:26:04,318 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-05-03 00:26:04,319 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-05-03 00:26:04,319 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-05-03 00:26:04,320 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-05-03 00:26:04,320 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-05-03 00:26:04,320 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-05-03 00:26:04,320 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-05-03 00:26:04,321 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-05-03 00:26:04,325 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationJordan_32.epf [2021-05-03 00:26:04,336 INFO L113 SettingsManager]: Loading preferences was successful [2021-05-03 00:26:04,336 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-05-03 00:26:04,339 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-05-03 00:26:04,339 INFO L138 SettingsManager]: * sizeof long=4 [2021-05-03 00:26:04,339 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-05-03 00:26:04,339 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-05-03 00:26:04,339 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-05-03 00:26:04,339 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-05-03 00:26:04,339 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-05-03 00:26:04,340 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-05-03 00:26:04,340 INFO L138 SettingsManager]: * sizeof long double=12 [2021-05-03 00:26:04,341 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-05-03 00:26:04,341 INFO L138 SettingsManager]: * Use constant arrays=true [2021-05-03 00:26:04,341 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-05-03 00:26:04,341 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-05-03 00:26:04,341 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-05-03 00:26:04,341 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-05-03 00:26:04,341 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-05-03 00:26:04,341 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-05-03 00:26:04,341 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-05-03 00:26:04,342 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2021-05-03 00:26:04,353 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-05-03 00:26:04,353 INFO L138 SettingsManager]: * Loop acceleration method that is used by accelerated interpolation=JORDAN [2021-05-03 00:26:04,353 INFO L138 SettingsManager]: * Use separate solver for trace checks=false WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2021-05-03 00:26:04,565 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-05-03 00:26:04,586 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-05-03 00:26:04,588 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-05-03 00:26:04,589 INFO L271 PluginConnector]: Initializing CDTParser... [2021-05-03 00:26:04,590 INFO L275 PluginConnector]: CDTParser initialized [2021-05-03 00:26:04,590 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-invariants/bin-suffix-5.c [2021-05-03 00:26:04,645 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/53674a288/677ebe13996e4c639fbdb0724e903611/FLAG35d4acba5 [2021-05-03 00:26:04,974 INFO L306 CDTParser]: Found 1 translation units. [2021-05-03 00:26:04,974 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-invariants/bin-suffix-5.c [2021-05-03 00:26:04,981 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/53674a288/677ebe13996e4c639fbdb0724e903611/FLAG35d4acba5 [2021-05-03 00:26:05,424 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/53674a288/677ebe13996e4c639fbdb0724e903611 [2021-05-03 00:26:05,426 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-05-03 00:26:05,427 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-05-03 00:26:05,428 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-05-03 00:26:05,428 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-05-03 00:26:05,436 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-05-03 00:26:05,436 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.05 12:26:05" (1/1) ... [2021-05-03 00:26:05,437 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@20c423c9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.05 12:26:05, skipping insertion in model container [2021-05-03 00:26:05,437 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.05 12:26:05" (1/1) ... [2021-05-03 00:26:05,442 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-05-03 00:26:05,451 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-05-03 00:26:05,525 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-invariants/bin-suffix-5.c[359,372] [2021-05-03 00:26:05,531 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-05-03 00:26:05,536 INFO L203 MainTranslator]: Completed pre-run [2021-05-03 00:26:05,567 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-invariants/bin-suffix-5.c[359,372] [2021-05-03 00:26:05,569 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-05-03 00:26:05,586 INFO L208 MainTranslator]: Completed translation [2021-05-03 00:26:05,587 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.05 12:26:05 WrapperNode [2021-05-03 00:26:05,587 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-05-03 00:26:05,589 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-05-03 00:26:05,589 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-05-03 00:26:05,589 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-05-03 00:26:05,597 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.05 12:26:05" (1/1) ... [2021-05-03 00:26:05,597 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.05 12:26:05" (1/1) ... [2021-05-03 00:26:05,601 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.05 12:26:05" (1/1) ... [2021-05-03 00:26:05,601 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.05 12:26:05" (1/1) ... [2021-05-03 00:26:05,606 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.05 12:26:05" (1/1) ... [2021-05-03 00:26:05,610 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.05 12:26:05" (1/1) ... [2021-05-03 00:26:05,615 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.05 12:26:05" (1/1) ... [2021-05-03 00:26:05,617 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-05-03 00:26:05,618 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-05-03 00:26:05,618 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-05-03 00:26:05,618 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-05-03 00:26:05,619 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.05 12:26:05" (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 [2021-05-03 00:26:05,679 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-05-03 00:26:05,679 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-05-03 00:26:05,679 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-05-03 00:26:05,680 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-05-03 00:26:05,680 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-05-03 00:26:05,680 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-05-03 00:26:05,680 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-05-03 00:26:05,680 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-05-03 00:26:05,680 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-05-03 00:26:05,680 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-05-03 00:26:05,680 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-05-03 00:26:05,681 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-05-03 00:26:05,681 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-05-03 00:26:05,681 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-05-03 00:26:05,681 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-05-03 00:26:05,681 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-05-03 00:26:05,681 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-05-03 00:26:05,682 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-05-03 00:26:05,864 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-05-03 00:26:05,864 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2021-05-03 00:26:05,865 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.05 12:26:05 BoogieIcfgContainer [2021-05-03 00:26:05,865 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-05-03 00:26:05,867 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-05-03 00:26:05,867 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-05-03 00:26:05,869 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-05-03 00:26:05,869 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.05 12:26:05" (1/3) ... [2021-05-03 00:26:05,869 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c62f53a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.05 12:26:05, skipping insertion in model container [2021-05-03 00:26:05,869 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.05 12:26:05" (2/3) ... [2021-05-03 00:26:05,870 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c62f53a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.05 12:26:05, skipping insertion in model container [2021-05-03 00:26:05,870 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.05 12:26:05" (3/3) ... [2021-05-03 00:26:05,871 INFO L111 eAbstractionObserver]: Analyzing ICFG bin-suffix-5.c [2021-05-03 00:26:05,874 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2021-05-03 00:26:05,876 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-05-03 00:26:05,887 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-05-03 00:26:05,900 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-05-03 00:26:05,900 INFO L377 AbstractCegarLoop]: Hoare is true [2021-05-03 00:26:05,900 INFO L378 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2021-05-03 00:26:05,900 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-05-03 00:26:05,900 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-05-03 00:26:05,900 INFO L381 AbstractCegarLoop]: Difference is false [2021-05-03 00:26:05,900 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-05-03 00:26:05,901 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-05-03 00:26:05,927 INFO L276 IsEmpty]: Start isEmpty. Operand has 20 states, 12 states have (on average 1.3333333333333333) internal successors, (16), 13 states have internal predecessors, (16), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-05-03 00:26:05,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-05-03 00:26:05,932 INFO L515 BasicCegarLoop]: Found error trace [2021-05-03 00:26:05,933 INFO L523 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-03 00:26:05,933 INFO L428 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-03 00:26:05,936 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-03 00:26:05,937 INFO L82 PathProgramCache]: Analyzing trace with hash -1035305623, now seen corresponding path program 1 times [2021-05-03 00:26:05,942 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-03 00:26:05,942 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2106196599] [2021-05-03 00:26:05,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-03 00:26:05,977 INFO L224 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-05-03 00:26:06,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 00:26:06,099 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-03 00:26:06,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 00:26:06,117 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 00:26:06,118 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-03 00:26:06,118 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2106196599] [2021-05-03 00:26:06,119 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [2106196599] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-03 00:26:06,120 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-03 00:26:06,120 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-05-03 00:26:06,120 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1012007337] [2021-05-03 00:26:06,122 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-05-03 00:26:06,123 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-03 00:26:06,130 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-05-03 00:26:06,131 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-05-03 00:26:06,132 INFO L87 Difference]: Start difference. First operand has 20 states, 12 states have (on average 1.3333333333333333) internal successors, (16), 13 states have internal predecessors, (16), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 2 states have internal predecessors, (7), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-03 00:26:06,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-03 00:26:06,167 INFO L93 Difference]: Finished difference Result 32 states and 35 transitions. [2021-05-03 00:26:06,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-05-03 00:26:06,169 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 2 states have internal predecessors, (7), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 11 [2021-05-03 00:26:06,169 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-03 00:26:06,172 INFO L225 Difference]: With dead ends: 32 [2021-05-03 00:26:06,172 INFO L226 Difference]: Without dead ends: 13 [2021-05-03 00:26:06,174 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 45.9ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-05-03 00:26:06,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2021-05-03 00:26:06,195 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2021-05-03 00:26:06,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 8 states have (on average 1.125) internal successors, (9), 8 states have internal predecessors, (9), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-03 00:26:06,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 13 transitions. [2021-05-03 00:26:06,197 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 13 transitions. Word has length 11 [2021-05-03 00:26:06,197 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-03 00:26:06,197 INFO L480 AbstractCegarLoop]: Abstraction has 13 states and 13 transitions. [2021-05-03 00:26:06,197 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 2 states have internal predecessors, (7), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-03 00:26:06,198 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 13 transitions. [2021-05-03 00:26:06,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-05-03 00:26:06,198 INFO L515 BasicCegarLoop]: Found error trace [2021-05-03 00:26:06,198 INFO L523 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-03 00:26:06,198 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-05-03 00:26:06,198 INFO L428 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-03 00:26:06,199 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-03 00:26:06,199 INFO L82 PathProgramCache]: Analyzing trace with hash 2042096758, now seen corresponding path program 1 times [2021-05-03 00:26:06,199 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-03 00:26:06,200 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1707258995] [2021-05-03 00:26:06,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-03 00:26:06,202 INFO L224 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-05-03 00:26:06,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-05-03 00:26:06,220 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-05-03 00:26:06,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-05-03 00:26:06,232 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-05-03 00:26:06,244 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2021-05-03 00:26:06,244 INFO L624 BasicCegarLoop]: Counterexample might be feasible [2021-05-03 00:26:06,245 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-05-03 00:26:06,252 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.05 12:26:06 BoogieIcfgContainer [2021-05-03 00:26:06,252 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-05-03 00:26:06,253 INFO L168 Benchmark]: Toolchain (without parser) took 825.69 ms. Allocated memory is still 207.6 MB. Free memory was 172.2 MB in the beginning and 144.6 MB in the end (delta: 27.7 MB). Peak memory consumption was 27.7 MB. Max. memory is 8.0 GB. [2021-05-03 00:26:06,253 INFO L168 Benchmark]: CDTParser took 0.11 ms. Allocated memory is still 207.6 MB. Free memory is still 188.9 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-05-03 00:26:06,254 INFO L168 Benchmark]: CACSL2BoogieTranslator took 159.17 ms. Allocated memory is still 207.6 MB. Free memory was 172.0 MB in the beginning and 190.3 MB in the end (delta: -18.3 MB). Peak memory consumption was 12.0 MB. Max. memory is 8.0 GB. [2021-05-03 00:26:06,254 INFO L168 Benchmark]: Boogie Preprocessor took 28.09 ms. Allocated memory is still 207.6 MB. Free memory was 190.3 MB in the beginning and 188.6 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-05-03 00:26:06,254 INFO L168 Benchmark]: RCFGBuilder took 247.41 ms. Allocated memory is still 207.6 MB. Free memory was 188.6 MB in the beginning and 176.0 MB in the end (delta: 12.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 8.0 GB. [2021-05-03 00:26:06,255 INFO L168 Benchmark]: TraceAbstraction took 385.41 ms. Allocated memory is still 207.6 MB. Free memory was 175.6 MB in the beginning and 144.6 MB in the end (delta: 31.1 MB). Peak memory consumption was 31.5 MB. Max. memory is 8.0 GB. [2021-05-03 00:26:06,256 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11 ms. Allocated memory is still 207.6 MB. Free memory is still 188.9 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 159.17 ms. Allocated memory is still 207.6 MB. Free memory was 172.0 MB in the beginning and 190.3 MB in the end (delta: -18.3 MB). Peak memory consumption was 12.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 28.09 ms. Allocated memory is still 207.6 MB. Free memory was 190.3 MB in the beginning and 188.6 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 247.41 ms. Allocated memory is still 207.6 MB. Free memory was 188.6 MB in the beginning and 176.0 MB in the end (delta: 12.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 8.0 GB. * TraceAbstraction took 385.41 ms. Allocated memory is still 207.6 MB. Free memory was 175.6 MB in the beginning and 144.6 MB in the end (delta: 31.1 MB). Peak memory consumption was 31.5 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 7]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of bitwiseAnd at line 16. Possible FailurePath: [L12] unsigned int x = 5; [L13] COND FALSE !(__VERIFIER_nondet_int()) [L16] CALL __VERIFIER_assert((x & 5) == 5) [L6] COND TRUE !(cond) [L7] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 23 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 347.0ms, OverallIterations: 2, TraceHistogramMax: 1, EmptinessCheckTime: 24.7ms, AutomataDifference: 51.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 7.0ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 18 SDtfs, 11 SDslu, 3 SDs, 0 SdLazy, 4 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 12.4ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 45.9ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=20occurred in iteration=0, InterpolantAutomatonStates: 3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 14.2ms AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 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...