/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/loops-crafted-1/sumt8.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-c225d54 [2021-05-03 00:23:55,319 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-05-03 00:23:55,322 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-05-03 00:23:55,358 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-05-03 00:23:55,404 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-05-03 00:23:55,404 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-05-03 00:23:55,405 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-05-03 00:23:55,405 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 00:23:55,425 INFO L113 SettingsManager]: Loading preferences was successful [2021-05-03 00:23:55,426 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-05-03 00:23:55,428 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-05-03 00:23:55,428 INFO L138 SettingsManager]: * sizeof long=4 [2021-05-03 00:23:55,428 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-05-03 00:23:55,429 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-05-03 00:23:55,429 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-05-03 00:23:55,429 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-05-03 00:23:55,429 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-05-03 00:23:55,429 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-05-03 00:23:55,430 INFO L138 SettingsManager]: * sizeof long double=12 [2021-05-03 00:23:55,430 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-05-03 00:23:55,430 INFO L138 SettingsManager]: * Use constant arrays=true [2021-05-03 00:23:55,430 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-05-03 00:23:55,430 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-05-03 00:23:55,431 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-05-03 00:23:55,431 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-05-03 00:23:55,431 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-05-03 00:23:55,431 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-05-03 00:23:55,431 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-05-03 00:23:55,431 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2021-05-03 00:23:55,431 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-05-03 00:23:55,431 INFO L138 SettingsManager]: * Loop acceleration method that is used by accelerated interpolation=JORDAN [2021-05-03 00:23:55,431 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2021-05-03 00:23:55,673 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-05-03 00:23:55,698 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-05-03 00:23:55,701 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-05-03 00:23:55,701 INFO L271 PluginConnector]: Initializing CDTParser... [2021-05-03 00:23:55,702 INFO L275 PluginConnector]: CDTParser initialized [2021-05-03 00:23:55,702 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops-crafted-1/sumt8.c [2021-05-03 00:23:55,748 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3fcdd5af7/3d3d81526d1c4e8eb660ec24f1e4d209/FLAG11506a7bc [2021-05-03 00:23:56,093 INFO L306 CDTParser]: Found 1 translation units. [2021-05-03 00:23:56,094 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loops-crafted-1/sumt8.c [2021-05-03 00:23:56,099 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3fcdd5af7/3d3d81526d1c4e8eb660ec24f1e4d209/FLAG11506a7bc [2021-05-03 00:23:56,110 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3fcdd5af7/3d3d81526d1c4e8eb660ec24f1e4d209 [2021-05-03 00:23:56,112 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-05-03 00:23:56,114 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-05-03 00:23:56,117 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-05-03 00:23:56,117 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-05-03 00:23:56,119 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-05-03 00:23:56,120 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.05 12:23:56" (1/1) ... [2021-05-03 00:23:56,121 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2faf2e51 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.05 12:23:56, skipping insertion in model container [2021-05-03 00:23:56,121 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.05 12:23:56" (1/1) ... [2021-05-03 00:23:56,126 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-05-03 00:23:56,142 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-05-03 00:23:56,265 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loops-crafted-1/sumt8.c[403,416] [2021-05-03 00:23:56,293 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-05-03 00:23:56,299 INFO L203 MainTranslator]: Completed pre-run [2021-05-03 00:23:56,362 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loops-crafted-1/sumt8.c[403,416] [2021-05-03 00:23:56,370 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-05-03 00:23:56,382 INFO L208 MainTranslator]: Completed translation [2021-05-03 00:23:56,383 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.05 12:23:56 WrapperNode [2021-05-03 00:23:56,383 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-05-03 00:23:56,386 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-05-03 00:23:56,386 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-05-03 00:23:56,386 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-05-03 00:23:56,395 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.05 12:23:56" (1/1) ... [2021-05-03 00:23:56,395 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.05 12:23:56" (1/1) ... [2021-05-03 00:23:56,410 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.05 12:23:56" (1/1) ... [2021-05-03 00:23:56,411 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.05 12:23:56" (1/1) ... [2021-05-03 00:23:56,420 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.05 12:23:56" (1/1) ... [2021-05-03 00:23:56,424 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.05 12:23:56" (1/1) ... [2021-05-03 00:23:56,425 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.05 12:23:56" (1/1) ... [2021-05-03 00:23:56,426 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-05-03 00:23:56,427 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-05-03 00:23:56,427 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-05-03 00:23:56,427 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-05-03 00:23:56,428 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.05 12:23:56" (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 00:23:56,495 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-05-03 00:23:56,495 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-05-03 00:23:56,495 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-05-03 00:23:56,496 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-05-03 00:23:56,496 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-05-03 00:23:56,496 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-05-03 00:23:56,496 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-05-03 00:23:56,496 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-05-03 00:23:56,497 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-05-03 00:23:56,497 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-05-03 00:23:56,497 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-05-03 00:23:56,497 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-05-03 00:23:56,497 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-05-03 00:23:56,498 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-05-03 00:23:56,498 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-05-03 00:23:56,498 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-05-03 00:23:56,498 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-05-03 00:23:56,499 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-05-03 00:23:56,499 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-05-03 00:23:56,500 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-05-03 00:23:56,767 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-05-03 00:23:56,767 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2021-05-03 00:23:56,768 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.05 12:23:56 BoogieIcfgContainer [2021-05-03 00:23:56,769 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-05-03 00:23:56,770 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-05-03 00:23:56,770 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-05-03 00:23:56,772 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-05-03 00:23:56,772 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.05 12:23:56" (1/3) ... [2021-05-03 00:23:56,773 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@22535cff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.05 12:23:56, skipping insertion in model container [2021-05-03 00:23:56,773 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.05 12:23:56" (2/3) ... [2021-05-03 00:23:56,773 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@22535cff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.05 12:23:56, skipping insertion in model container [2021-05-03 00:23:56,773 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.05 12:23:56" (3/3) ... [2021-05-03 00:23:56,774 INFO L111 eAbstractionObserver]: Analyzing ICFG sumt8.c [2021-05-03 00:23:56,778 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2021-05-03 00:23:56,781 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-05-03 00:23:56,792 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-05-03 00:23:56,804 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-05-03 00:23:56,804 INFO L377 AbstractCegarLoop]: Hoare is true [2021-05-03 00:23:56,805 INFO L378 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2021-05-03 00:23:56,805 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-05-03 00:23:56,805 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-05-03 00:23:56,805 INFO L381 AbstractCegarLoop]: Difference is false [2021-05-03 00:23:56,805 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-05-03 00:23:56,805 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-05-03 00:23:56,823 INFO L276 IsEmpty]: Start isEmpty. Operand has 28 states, 20 states have (on average 1.6) internal successors, (32), 22 states have internal predecessors, (32), 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 00:23:56,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-05-03 00:23:56,832 INFO L515 BasicCegarLoop]: Found error trace [2021-05-03 00:23:56,833 INFO L523 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-03 00:23:56,833 INFO L428 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-03 00:23:56,837 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-03 00:23:56,837 INFO L82 PathProgramCache]: Analyzing trace with hash 1128394070, now seen corresponding path program 1 times [2021-05-03 00:23:56,843 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-03 00:23:56,843 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [3881201] [2021-05-03 00:23:56,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-03 00:23:56,884 INFO L224 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-05-03 00:23:56,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 00:23:57,344 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-03 00:23:57,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 00:23:57,359 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 00:23:57,361 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-03 00:23:57,361 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [3881201] [2021-05-03 00:23:57,363 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [3881201] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-03 00:23:57,363 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-03 00:23:57,363 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-05-03 00:23:57,363 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [396156484] [2021-05-03 00:23:57,367 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-05-03 00:23:57,368 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-03 00:23:57,385 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-05-03 00:23:57,386 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-05-03 00:23:57,388 INFO L87 Difference]: Start difference. First operand has 28 states, 20 states have (on average 1.6) internal successors, (32), 22 states have internal predecessors, (32), 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 8 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 6 states have internal predecessors, (10), 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 00:23:58,090 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-03 00:23:58,090 INFO L93 Difference]: Finished difference Result 71 states and 105 transitions. [2021-05-03 00:23:58,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-05-03 00:23:58,092 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 6 states have internal predecessors, (10), 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 14 [2021-05-03 00:23:58,093 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-03 00:23:58,099 INFO L225 Difference]: With dead ends: 71 [2021-05-03 00:23:58,099 INFO L226 Difference]: Without dead ends: 39 [2021-05-03 00:23:58,114 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 467.2ms TimeCoverageRelationStatistics Valid=43, Invalid=139, Unknown=0, NotChecked=0, Total=182 [2021-05-03 00:23:58,128 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2021-05-03 00:23:58,184 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 31. [2021-05-03 00:23:58,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 23 states have (on average 1.3478260869565217) internal successors, (31), 24 states have internal predecessors, (31), 4 states have call successors, (4), 4 states have call predecessors, (4), 3 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2021-05-03 00:23:58,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 38 transitions. [2021-05-03 00:23:58,191 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 38 transitions. Word has length 14 [2021-05-03 00:23:58,191 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-03 00:23:58,191 INFO L480 AbstractCegarLoop]: Abstraction has 31 states and 38 transitions. [2021-05-03 00:23:58,191 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 6 states have internal predecessors, (10), 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 00:23:58,192 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 38 transitions. [2021-05-03 00:23:58,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-05-03 00:23:58,192 INFO L515 BasicCegarLoop]: Found error trace [2021-05-03 00:23:58,193 INFO L523 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-03 00:23:58,193 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-05-03 00:23:58,193 INFO L428 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-03 00:23:58,194 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-03 00:23:58,194 INFO L82 PathProgramCache]: Analyzing trace with hash 1294727378, now seen corresponding path program 1 times [2021-05-03 00:23:58,194 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-03 00:23:58,194 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [217746444] [2021-05-03 00:23:58,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-03 00:23:58,254 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (= (mod v_main_~l~0_24 8) 0) (= (mod (+ v_main_~l~0_24 1) 4294967296) (mod (+ v_main_~i~0_7 v_main_~k~0_7 v_main_~j~0_7 v_main_~v4~0_7 v_main_~v3~0_7 v_main_~v2~0_7 v_main_~v5~0_8 v_main_~v1~0_7 1) 4294967296)) (< (mod v_main_~l~0_24 4294967296) (mod v_main_~n~0_7 4294967296))) InVars {main_~l~0=v_main_~l~0_24, main_~v1~0=v_main_~v1~0_7, main_~v2~0=v_main_~v2~0_7, main_~k~0=v_main_~k~0_7, main_~v4~0=v_main_~v4~0_7, main_~j~0=v_main_~j~0_7, main_~v5~0=v_main_~v5~0_8, main_~i~0=v_main_~i~0_7, main_~v3~0=v_main_~v3~0_7, main_~n~0=v_main_~n~0_7} OutVars{main_~l~0=v_main_~l~0_24, main_~v1~0=v_main_~v1~0_7, main_~v2~0=v_main_~v2~0_7, main_~k~0=v_main_~k~0_7, main_~v4~0=v_main_~v4~0_7, main_~j~0=v_main_~j~0_7, main_~v5~0=v_main_~v5~0_8, main_~i~0=v_main_~i~0_7, main_~v3~0=v_main_~v3~0_7, main_~n~0=v_main_~n~0_7} AuxVars[] AssignedVars[] [2021-05-03 00:23:58,290 WARN L240 tifierPushTermWalker]: treesize reduction 28, result has 86.2 percent of original size [2021-05-03 00:23:58,354 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:23:58,378 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:23:59,911 WARN L205 SmtUtils]: Spent 1.52 s on a formula simplification. DAG size of input: 3 DAG size of output: 1 [2021-05-03 00:23:59,947 WARN L240 tifierPushTermWalker]: treesize reduction 3, result has 95.2 percent of original size [2021-05-03 00:23:59,955 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:24:00,413 WARN L205 SmtUtils]: Spent 456.00 ms on a formula simplification. DAG size of input: 18 DAG size of output: 1 [2021-05-03 00:24:00,421 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 58 [2021-05-03 00:24:00,423 WARN L245 tifierPushTermWalker]: treesize reduction 3, result has 95.2 percent of original size 59 [2021-05-03 00:24:00,424 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:24:00,426 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-05-03 00:24:00,428 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 00:24:00,429 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-05-03 00:24:00,498 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 67 [2021-05-03 00:24:00,509 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-05-03 00:24:00,513 WARN L245 tifierPushTermWalker]: treesize reduction 28, result has 86.2 percent of original size 175 [2021-05-03 00:24:00,535 INFO L212 tedInterpolationCore]: Starting analysis with loop acceleration approximation PRECISE [2021-05-03 00:24:00,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 00:24:00,957 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-03 00:24:00,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 00:24:00,990 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 00:24:01,164 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-03 00:24:01,237 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-03 00:24:01,270 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-03 00:24:01,270 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [217746444] [2021-05-03 00:24:01,270 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [217746444] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-03 00:24:01,271 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-03 00:24:01,271 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2021-05-03 00:24:01,271 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1838669088] [2021-05-03 00:24:01,272 INFO L460 AbstractCegarLoop]: Interpolant automaton has 14 states [2021-05-03 00:24:01,272 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-03 00:24:01,272 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-05-03 00:24:01,273 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=193, Unknown=0, NotChecked=0, Total=240 [2021-05-03 00:24:01,273 INFO L87 Difference]: Start difference. First operand 31 states and 38 transitions. Second operand has 14 states, 12 states have (on average 1.3333333333333333) internal successors, (16), 10 states have internal predecessors, (16), 3 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-05-03 00:24:01,613 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-03 00:24:01,613 INFO L93 Difference]: Finished difference Result 32 states and 39 transitions. [2021-05-03 00:24:01,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-05-03 00:24:01,613 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 12 states have (on average 1.3333333333333333) internal successors, (16), 10 states have internal predecessors, (16), 3 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 22 [2021-05-03 00:24:01,614 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-03 00:24:01,614 INFO L225 Difference]: With dead ends: 32 [2021-05-03 00:24:01,614 INFO L226 Difference]: Without dead ends: 0 [2021-05-03 00:24:01,615 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 6 SyntacticMatches, 3 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 85 ImplicationChecksByTransitivity, 668.7ms TimeCoverageRelationStatistics Valid=89, Invalid=373, Unknown=0, NotChecked=0, Total=462 [2021-05-03 00:24:01,616 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-05-03 00:24:01,616 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-05-03 00:24:01,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 00:24:01,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-05-03 00:24:01,617 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 22 [2021-05-03 00:24:01,617 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-03 00:24:01,617 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-05-03 00:24:01,617 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 14 states, 12 states have (on average 1.3333333333333333) internal successors, (16), 10 states have internal predecessors, (16), 3 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-05-03 00:24:01,617 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-05-03 00:24:01,617 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-05-03 00:24:01,617 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-05-03 00:24:01,619 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-05-03 00:24:01,927 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 32 [2021-05-03 00:24:02,160 INFO L198 CegarLoopUtils]: For program point reach_errorEXIT(line 3) no Hoare annotation was computed. [2021-05-03 00:24:02,160 INFO L198 CegarLoopUtils]: For program point reach_errorENTRY(line 3) no Hoare annotation was computed. [2021-05-03 00:24:02,161 INFO L198 CegarLoopUtils]: For program point reach_errorFINAL(line 3) no Hoare annotation was computed. [2021-05-03 00:24:02,161 INFO L201 CegarLoopUtils]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2021-05-03 00:24:02,161 INFO L194 CegarLoopUtils]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= |#t~string5.base| |old(#t~string5.base)|) (= |#t~string5.offset| |old(#t~string5.offset)|) (= |old(#length)| |#length|) (= |#t~string6.base| |old(#t~string6.base)|) (= ~SIZE~0 |old(~SIZE~0)|) (= |#t~string6.offset| |old(#t~string6.offset)|) (= |#t~string4.base| |old(#t~string4.base)|) (= |#NULL.base| |old(#NULL.base)|) (= |#t~string4.offset| |old(#t~string4.offset)|) (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#valid)| |#valid|)) [2021-05-03 00:24:02,161 INFO L201 CegarLoopUtils]: At program point ULTIMATE.initEXIT(line -1) the Hoare annotation is: true [2021-05-03 00:24:02,161 INFO L201 CegarLoopUtils]: At program point ULTIMATE.startEXIT(line -1) the Hoare annotation is: true [2021-05-03 00:24:02,161 INFO L201 CegarLoopUtils]: At program point L-1(line -1) the Hoare annotation is: true [2021-05-03 00:24:02,161 INFO L201 CegarLoopUtils]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2021-05-03 00:24:02,161 INFO L201 CegarLoopUtils]: At program point ULTIMATE.startFINAL(line -1) the Hoare annotation is: true [2021-05-03 00:24:02,161 INFO L198 CegarLoopUtils]: For program point assume_abort_if_notENTRY(lines 5 7) no Hoare annotation was computed. [2021-05-03 00:24:02,162 INFO L198 CegarLoopUtils]: For program point L6(line 6) no Hoare annotation was computed. [2021-05-03 00:24:02,162 INFO L198 CegarLoopUtils]: For program point L6-2(lines 5 7) no Hoare annotation was computed. [2021-05-03 00:24:02,162 INFO L198 CegarLoopUtils]: For program point assume_abort_if_notEXIT(lines 5 7) no Hoare annotation was computed. [2021-05-03 00:24:02,162 INFO L194 CegarLoopUtils]: At program point L35-2(lines 23 38) the Hoare annotation is: (and (= main_~v3~0 0) (= main_~k~0 0) (= main_~i~0 0) (= main_~j~0 0) (= main_~v1~0 0) (= main_~l~0 0) (= main_~v4~0 0) (= main_~v2~0 0) (< (mod main_~l~0 4294967296) (mod main_~n~0 4294967296)) (= main_~v5~0 1)) [2021-05-03 00:24:02,162 INFO L194 CegarLoopUtils]: At program point L31(lines 31 38) the Hoare annotation is: false [2021-05-03 00:24:02,162 INFO L194 CegarLoopUtils]: At program point L27(lines 27 38) the Hoare annotation is: false [2021-05-03 00:24:02,162 INFO L201 CegarLoopUtils]: At program point mainEXIT(lines 16 43) the Hoare annotation is: true [2021-05-03 00:24:02,162 INFO L194 CegarLoopUtils]: At program point L23(lines 23 38) the Hoare annotation is: (and (= main_~v3~0 0) (= main_~v5~0 0) (= main_~k~0 0) (= main_~i~0 0) (= main_~j~0 0) (= main_~v1~0 0) (= main_~l~0 0) (= main_~v4~0 0) (= main_~v2~0 0) (< (mod main_~l~0 4294967296) (mod main_~n~0 4294967296))) [2021-05-03 00:24:02,162 INFO L194 CegarLoopUtils]: At program point L40(line 40) the Hoare annotation is: (and (= main_~v3~0 0) (= main_~k~0 0) (= main_~l~0 1) (= main_~i~0 0) (= main_~j~0 0) (= main_~v1~0 0) (= main_~v4~0 0) (= main_~v2~0 0) (= main_~v5~0 1) (< (mod (+ main_~l~0 4294967295) 4294967296) (mod main_~n~0 4294967296))) [2021-05-03 00:24:02,162 INFO L194 CegarLoopUtils]: At program point L40-1(lines 21 41) the Hoare annotation is: (let ((.cse0 (= main_~v3~0 0)) (.cse1 (= main_~k~0 0)) (.cse2 (= main_~i~0 0)) (.cse3 (= main_~j~0 0)) (.cse4 (= main_~v1~0 0)) (.cse5 (= main_~v4~0 0)) (.cse6 (= main_~v2~0 0))) (or (and .cse0 .cse1 (= main_~l~0 1) .cse2 .cse3 .cse4 .cse5 .cse6 (= main_~v5~0 1) (< (mod (+ main_~l~0 4294967295) 4294967296) (mod main_~n~0 4294967296))) (and .cse0 (= main_~v5~0 0) .cse1 .cse2 .cse3 .cse4 (= main_~l~0 0) .cse5 .cse6))) [2021-05-03 00:24:02,163 INFO L194 CegarLoopUtils]: At program point L20(line 20) the Hoare annotation is: (and (= main_~v3~0 0) (= main_~v5~0 0) (= main_~k~0 0) (= main_~i~0 0) (= main_~j~0 0) (= main_~v1~0 0) (= main_~l~0 0) (= main_~v4~0 0) (= main_~v2~0 0)) [2021-05-03 00:24:02,163 INFO L194 CegarLoopUtils]: At program point L33(lines 33 38) the Hoare annotation is: false [2021-05-03 00:24:02,163 INFO L194 CegarLoopUtils]: At program point L29(lines 29 38) the Hoare annotation is: false [2021-05-03 00:24:02,163 INFO L194 CegarLoopUtils]: At program point L25(lines 25 38) the Hoare annotation is: false [2021-05-03 00:24:02,163 INFO L201 CegarLoopUtils]: At program point L21-2(lines 21 41) the Hoare annotation is: true [2021-05-03 00:24:02,163 INFO L201 CegarLoopUtils]: At program point mainFINAL(lines 16 43) the Hoare annotation is: true [2021-05-03 00:24:02,163 INFO L201 CegarLoopUtils]: At program point mainENTRY(lines 16 43) the Hoare annotation is: true [2021-05-03 00:24:02,163 INFO L194 CegarLoopUtils]: At program point L35(lines 35 38) the Hoare annotation is: false [2021-05-03 00:24:02,163 INFO L201 CegarLoopUtils]: At program point __VERIFIER_assertENTRY(lines 8 13) the Hoare annotation is: true [2021-05-03 00:24:02,163 INFO L194 CegarLoopUtils]: At program point L10(line 10) the Hoare annotation is: (or (not (= |__VERIFIER_assert_#in~cond| 1)) (not (< 0 (mod main_~n~0 4294967296)))) [2021-05-03 00:24:02,163 INFO L194 CegarLoopUtils]: At program point __VERIFIER_assertEXIT(lines 8 13) the Hoare annotation is: (or (not (= |__VERIFIER_assert_#in~cond| 1)) (not (< 0 (mod main_~n~0 4294967296))) (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond)) [2021-05-03 00:24:02,163 INFO L194 CegarLoopUtils]: At program point L9(lines 9 11) the Hoare annotation is: (or (not (= |__VERIFIER_assert_#in~cond| 1)) (not (< 0 (mod main_~n~0 4294967296))) (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond)) [2021-05-03 00:24:02,164 INFO L194 CegarLoopUtils]: At program point L9-2(lines 8 13) the Hoare annotation is: (or (not (= |__VERIFIER_assert_#in~cond| 1)) (not (< 0 (mod main_~n~0 4294967296))) (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond)) [2021-05-03 00:24:02,164 INFO L194 CegarLoopUtils]: At program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 10) the Hoare annotation is: (or (not (= |__VERIFIER_assert_#in~cond| 1)) (not (< 0 (mod main_~n~0 4294967296)))) [2021-05-03 00:24:02,188 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.05 12:24:02 BoogieIcfgContainer [2021-05-03 00:24:02,188 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-05-03 00:24:02,192 INFO L168 Benchmark]: Toolchain (without parser) took 6075.47 ms. Allocated memory was 190.8 MB in the beginning and 268.4 MB in the end (delta: 77.6 MB). Free memory was 155.2 MB in the beginning and 184.5 MB in the end (delta: -29.4 MB). Peak memory consumption was 137.6 MB. Max. memory is 8.0 GB. [2021-05-03 00:24:02,193 INFO L168 Benchmark]: CDTParser took 0.11 ms. Allocated memory is still 190.8 MB. Free memory is still 172.6 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-05-03 00:24:02,193 INFO L168 Benchmark]: CACSL2BoogieTranslator took 266.82 ms. Allocated memory is still 190.8 MB. Free memory was 155.2 MB in the beginning and 173.9 MB in the end (delta: -18.7 MB). Peak memory consumption was 12.6 MB. Max. memory is 8.0 GB. [2021-05-03 00:24:02,198 INFO L168 Benchmark]: Boogie Preprocessor took 40.49 ms. Allocated memory is still 190.8 MB. Free memory was 173.7 MB in the beginning and 172.1 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-05-03 00:24:02,199 INFO L168 Benchmark]: RCFGBuilder took 341.84 ms. Allocated memory is still 190.8 MB. Free memory was 172.1 MB in the beginning and 155.4 MB in the end (delta: 16.8 MB). Peak memory consumption was 16.8 MB. Max. memory is 8.0 GB. [2021-05-03 00:24:02,199 INFO L168 Benchmark]: TraceAbstraction took 5418.47 ms. Allocated memory was 190.8 MB in the beginning and 268.4 MB in the end (delta: 77.6 MB). Free memory was 154.9 MB in the beginning and 184.5 MB in the end (delta: -29.7 MB). Peak memory consumption was 137.9 MB. Max. memory is 8.0 GB. [2021-05-03 00:24:02,205 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 190.8 MB. Free memory is still 172.6 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 266.82 ms. Allocated memory is still 190.8 MB. Free memory was 155.2 MB in the beginning and 173.9 MB in the end (delta: -18.7 MB). Peak memory consumption was 12.6 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 40.49 ms. Allocated memory is still 190.8 MB. Free memory was 173.7 MB in the beginning and 172.1 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 341.84 ms. Allocated memory is still 190.8 MB. Free memory was 172.1 MB in the beginning and 155.4 MB in the end (delta: 16.8 MB). Peak memory consumption was 16.8 MB. Max. memory is 8.0 GB. * TraceAbstraction took 5418.47 ms. Allocated memory was 190.8 MB in the beginning and 268.4 MB in the end (delta: 77.6 MB). Free memory was 154.9 MB in the beginning and 184.5 MB in the end (delta: -29.7 MB). Peak memory consumption was 137.9 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 10]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 35 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 4814.9ms, OverallIterations: 2, TraceHistogramMax: 2, EmptinessCheckTime: 21.6ms, AutomataDifference: 1088.7ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 541.7ms, InitialAbstractionConstructionTime: 6.5ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 20 SDtfs, 83 SDslu, 72 SDs, 0 SdLazy, 241 SolverSat, 27 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 314.9ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 44 GetRequests, 9 SyntacticMatches, 3 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 102 ImplicationChecksByTransitivity, 1135.9ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=31occurred in iteration=1, InterpolantAutomatonStates: 18, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 64.0ms AutomataMinimizationTime, 2 MinimizatonAttempts, 8 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0ms HoareAnnotationTime, 28 LocationsWithAnnotation, 40 PreInvPairs, 58 NumberOfFragments, 316 HoareAnnotationTreeSize, 40 FomulaSimplifications, 745 FormulaSimplificationTreeSizeReduction, 52.3ms HoareSimplificationTime, 28 FomulaSimplificationsInter, 636 FormulaSimplificationTreeSizeReductionInter, 473.0ms 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 21]: Loop Invariant Derived loop invariant: (((((((((v3 == 0 && k == 0) && l == 1) && i == 0) && j == 0) && v1 == 0) && v4 == 0) && v2 == 0) && v5 == 1) && (l + 4294967295) % 4294967296 < n % 4294967296) || ((((((((v3 == 0 && v5 == 0) && k == 0) && i == 0) && j == 0) && v1 == 0) && l == 0) && v4 == 0) && v2 == 0) - ProcedureContractResult [Line: 16]: Procedure Contract for main Derived contract for procedure main: 1 - ProcedureContractResult [Line: 8]: Procedure Contract for __VERIFIER_assert Derived contract for procedure __VERIFIER_assert: (!(\old(cond) == 1) || !(0 < n % 4294967296)) || \old(cond) == cond RESULT: Ultimate proved your program to be correct! Received shutdown request...