/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.use.separate.solver.for.trace.checks true -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf -i ../../../trunk/examples/svcomp/loop-industry-pattern/mod3.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-7d8eed3 [2020-11-07 06:48:25,009 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-07 06:48:25,016 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-07 06:48:25,077 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-07 06:48:25,078 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-07 06:48:25,080 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-07 06:48:25,082 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-07 06:48:25,086 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-07 06:48:25,089 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-07 06:48:25,091 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-07 06:48:25,093 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-07 06:48:25,095 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-07 06:48:25,096 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-07 06:48:25,098 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-07 06:48:25,100 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-07 06:48:25,102 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-07 06:48:25,104 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-07 06:48:25,106 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-07 06:48:25,109 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-07 06:48:25,126 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-07 06:48:25,129 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-07 06:48:25,134 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-07 06:48:25,138 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-07 06:48:25,140 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-07 06:48:25,152 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-11-07 06:48:25,187 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-07 06:48:25,188 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-07 06:48:25,190 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-07 06:48:25,191 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-11-07 06:48:25,220 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-07 06:48:25,221 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-07 06:48:25,229 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-07 06:48:25,230 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-07 06:48:25,230 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-07 06:48:25,230 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-07 06:48:25,230 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-07 06:48:25,231 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-07 06:48:25,231 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-07 06:48:25,231 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-07 06:48:25,233 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-07 06:48:25,234 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-07 06:48:25,234 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-07 06:48:25,234 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-07 06:48:25,235 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-07 06:48:25,235 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-11-07 06:48:25,235 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-07 06:48:25,235 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-07 06:48:25,236 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-07 06:48:25,236 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-07 06:48:25,236 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-11-07 06:48:25,237 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-07 06:48:25,237 INFO L138 SettingsManager]: * Use separate solver for trace checks=false WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use separate solver for trace checks -> true [2020-11-07 06:48:25,825 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-07 06:48:25,865 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-07 06:48:25,869 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-07 06:48:25,871 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-07 06:48:25,872 INFO L275 PluginConnector]: CDTParser initialized [2020-11-07 06:48:25,873 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-industry-pattern/mod3.c [2020-11-07 06:48:25,979 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0b5f41d7a/9f0d1e872ef74f65b09e0cb1bd244167/FLAG6c158d0e5 [2020-11-07 06:48:26,726 INFO L306 CDTParser]: Found 1 translation units. [2020-11-07 06:48:26,727 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-industry-pattern/mod3.c [2020-11-07 06:48:26,738 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0b5f41d7a/9f0d1e872ef74f65b09e0cb1bd244167/FLAG6c158d0e5 [2020-11-07 06:48:27,062 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0b5f41d7a/9f0d1e872ef74f65b09e0cb1bd244167 [2020-11-07 06:48:27,066 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-07 06:48:27,074 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-11-07 06:48:27,076 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-07 06:48:27,077 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-07 06:48:27,082 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-07 06:48:27,084 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 06:48:27" (1/1) ... [2020-11-07 06:48:27,089 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@52b5723a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:48:27, skipping insertion in model container [2020-11-07 06:48:27,090 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 06:48:27" (1/1) ... [2020-11-07 06:48:27,100 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-07 06:48:27,120 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-07 06:48:27,425 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-07 06:48:27,442 INFO L203 MainTranslator]: Completed pre-run [2020-11-07 06:48:27,471 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-07 06:48:27,494 INFO L208 MainTranslator]: Completed translation [2020-11-07 06:48:27,495 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:48:27 WrapperNode [2020-11-07 06:48:27,496 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-07 06:48:27,499 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-07 06:48:27,500 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-07 06:48:27,500 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-07 06:48:27,523 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:48:27" (1/1) ... [2020-11-07 06:48:27,524 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:48:27" (1/1) ... [2020-11-07 06:48:27,554 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:48:27" (1/1) ... [2020-11-07 06:48:27,555 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:48:27" (1/1) ... [2020-11-07 06:48:27,579 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:48:27" (1/1) ... [2020-11-07 06:48:27,597 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:48:27" (1/1) ... [2020-11-07 06:48:27,599 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:48:27" (1/1) ... [2020-11-07 06:48:27,603 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-07 06:48:27,605 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-07 06:48:27,605 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-07 06:48:27,606 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-07 06:48:27,607 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:48:27" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-07 06:48:27,724 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-11-07 06:48:27,726 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-07 06:48:27,726 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-11-07 06:48:27,727 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-11-07 06:48:27,727 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-11-07 06:48:27,728 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-11-07 06:48:27,729 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-11-07 06:48:27,729 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-11-07 06:48:27,730 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-07 06:48:27,730 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-11-07 06:48:27,731 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-11-07 06:48:27,731 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-11-07 06:48:27,732 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-11-07 06:48:27,732 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-07 06:48:27,733 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-07 06:48:27,734 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-07 06:48:27,735 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-07 06:48:27,735 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-07 06:48:28,376 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-07 06:48:28,378 INFO L298 CfgBuilder]: Removed 1 assume(true) statements. [2020-11-07 06:48:28,382 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 06:48:28 BoogieIcfgContainer [2020-11-07 06:48:28,382 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-07 06:48:28,390 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-07 06:48:28,391 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-07 06:48:28,396 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-07 06:48:28,396 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 06:48:27" (1/3) ... [2020-11-07 06:48:28,401 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1842c2e6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 06:48:28, skipping insertion in model container [2020-11-07 06:48:28,401 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:48:27" (2/3) ... [2020-11-07 06:48:28,402 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1842c2e6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 06:48:28, skipping insertion in model container [2020-11-07 06:48:28,402 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 06:48:28" (3/3) ... [2020-11-07 06:48:28,405 INFO L111 eAbstractionObserver]: Analyzing ICFG mod3.c [2020-11-07 06:48:28,432 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-11-07 06:48:28,438 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-07 06:48:28,465 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-07 06:48:28,518 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-07 06:48:28,519 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-07 06:48:28,519 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-11-07 06:48:28,519 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-07 06:48:28,520 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-07 06:48:28,521 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-07 06:48:28,521 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-07 06:48:28,521 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-07 06:48:28,555 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states. [2020-11-07 06:48:28,582 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2020-11-07 06:48:28,583 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 06:48:28,585 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-07 06:48:28,586 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 06:48:28,599 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 06:48:28,600 INFO L82 PathProgramCache]: Analyzing trace with hash 1397876888, now seen corresponding path program 1 times [2020-11-07 06:48:28,625 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 06:48:28,626 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1111508831] [2020-11-07 06:48:28,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 06:48:28,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 06:48:29,012 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 06:48:29,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 06:48:29,079 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-07 06:48:29,080 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1111508831] [2020-11-07 06:48:29,084 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 06:48:29,084 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-07 06:48:29,085 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [692954149] [2020-11-07 06:48:29,093 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-07 06:48:29,094 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 06:48:29,112 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-07 06:48:29,114 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-07 06:48:29,117 INFO L87 Difference]: Start difference. First operand 56 states. Second operand 3 states. [2020-11-07 06:48:29,279 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 06:48:29,279 INFO L93 Difference]: Finished difference Result 70 states and 79 transitions. [2020-11-07 06:48:29,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-07 06:48:29,282 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 28 [2020-11-07 06:48:29,283 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 06:48:29,294 INFO L225 Difference]: With dead ends: 70 [2020-11-07 06:48:29,295 INFO L226 Difference]: Without dead ends: 46 [2020-11-07 06:48:29,300 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-07 06:48:29,327 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2020-11-07 06:48:29,371 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 46. [2020-11-07 06:48:29,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46 states. [2020-11-07 06:48:29,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 49 transitions. [2020-11-07 06:48:29,378 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 49 transitions. Word has length 28 [2020-11-07 06:48:29,378 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 06:48:29,379 INFO L481 AbstractCegarLoop]: Abstraction has 46 states and 49 transitions. [2020-11-07 06:48:29,379 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-07 06:48:29,379 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 49 transitions. [2020-11-07 06:48:29,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-11-07 06:48:29,381 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 06:48:29,381 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-07 06:48:29,382 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-07 06:48:29,382 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 06:48:29,383 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 06:48:29,383 INFO L82 PathProgramCache]: Analyzing trace with hash -1481353675, now seen corresponding path program 1 times [2020-11-07 06:48:29,384 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 06:48:29,384 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1720788542] [2020-11-07 06:48:29,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 06:48:29,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 06:48:29,561 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 06:48:29,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 06:48:29,587 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-07 06:48:29,588 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1720788542] [2020-11-07 06:48:29,588 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 06:48:29,589 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-07 06:48:29,589 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1313628695] [2020-11-07 06:48:29,591 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-07 06:48:29,592 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 06:48:29,593 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-07 06:48:29,593 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-07 06:48:29,594 INFO L87 Difference]: Start difference. First operand 46 states and 49 transitions. Second operand 4 states. [2020-11-07 06:48:29,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 06:48:29,896 INFO L93 Difference]: Finished difference Result 71 states and 77 transitions. [2020-11-07 06:48:29,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-07 06:48:29,897 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 30 [2020-11-07 06:48:29,898 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 06:48:29,899 INFO L225 Difference]: With dead ends: 71 [2020-11-07 06:48:29,900 INFO L226 Difference]: Without dead ends: 63 [2020-11-07 06:48:29,901 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-07 06:48:29,902 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2020-11-07 06:48:29,918 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 48. [2020-11-07 06:48:29,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48 states. [2020-11-07 06:48:29,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 51 transitions. [2020-11-07 06:48:29,921 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 51 transitions. Word has length 30 [2020-11-07 06:48:29,922 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 06:48:29,922 INFO L481 AbstractCegarLoop]: Abstraction has 48 states and 51 transitions. [2020-11-07 06:48:29,922 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-07 06:48:29,922 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 51 transitions. [2020-11-07 06:48:29,924 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2020-11-07 06:48:29,924 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 06:48:29,924 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-07 06:48:29,925 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-07 06:48:29,925 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 06:48:29,926 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 06:48:29,926 INFO L82 PathProgramCache]: Analyzing trace with hash -1753158581, now seen corresponding path program 1 times [2020-11-07 06:48:29,927 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 06:48:29,927 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1362804436] [2020-11-07 06:48:29,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 06:48:29,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 06:48:30,375 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 06:48:30,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 06:48:30,406 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-07 06:48:30,407 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1362804436] [2020-11-07 06:48:30,407 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 06:48:30,408 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-11-07 06:48:30,410 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [418259708] [2020-11-07 06:48:30,413 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-07 06:48:30,414 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 06:48:30,414 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-07 06:48:30,415 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-11-07 06:48:30,416 INFO L87 Difference]: Start difference. First operand 48 states and 51 transitions. Second operand 7 states. [2020-11-07 06:48:37,352 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 06:48:37,353 INFO L93 Difference]: Finished difference Result 91 states and 101 transitions. [2020-11-07 06:48:37,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-07 06:48:37,357 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 36 [2020-11-07 06:48:37,357 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 06:48:37,359 INFO L225 Difference]: With dead ends: 91 [2020-11-07 06:48:37,359 INFO L226 Difference]: Without dead ends: 59 [2020-11-07 06:48:37,361 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2020-11-07 06:48:37,361 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2020-11-07 06:48:37,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 53. [2020-11-07 06:48:37,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 53 states. [2020-11-07 06:48:37,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 56 transitions. [2020-11-07 06:48:37,404 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 56 transitions. Word has length 36 [2020-11-07 06:48:37,405 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 06:48:37,405 INFO L481 AbstractCegarLoop]: Abstraction has 53 states and 56 transitions. [2020-11-07 06:48:37,406 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-11-07 06:48:37,406 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 56 transitions. [2020-11-07 06:48:37,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2020-11-07 06:48:37,409 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 06:48:37,409 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-07 06:48:37,410 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-07 06:48:37,410 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 06:48:37,413 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 06:48:37,414 INFO L82 PathProgramCache]: Analyzing trace with hash 201952041, now seen corresponding path program 1 times [2020-11-07 06:48:37,414 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 06:48:37,415 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [207039822] [2020-11-07 06:48:37,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 06:48:37,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 06:48:37,892 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 06:48:37,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 06:48:37,913 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-07 06:48:37,914 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [207039822] [2020-11-07 06:48:37,914 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 06:48:37,914 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-11-07 06:48:37,915 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1666497812] [2020-11-07 06:48:37,915 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-07 06:48:37,916 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 06:48:37,916 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-07 06:48:37,917 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-11-07 06:48:37,917 INFO L87 Difference]: Start difference. First operand 53 states and 56 transitions. Second operand 7 states. [2020-11-07 06:48:46,978 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 06:48:46,979 INFO L93 Difference]: Finished difference Result 91 states and 101 transitions. [2020-11-07 06:48:46,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-07 06:48:46,980 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 37 [2020-11-07 06:48:46,981 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 06:48:46,981 INFO L225 Difference]: With dead ends: 91 [2020-11-07 06:48:46,981 INFO L226 Difference]: Without dead ends: 0 [2020-11-07 06:48:46,984 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2020-11-07 06:48:46,984 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-07 06:48:46,985 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-07 06:48:46,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-07 06:48:46,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-07 06:48:46,985 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 37 [2020-11-07 06:48:46,985 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 06:48:46,985 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-07 06:48:47,003 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-11-07 06:48:47,003 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-07 06:48:47,004 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-07 06:48:47,004 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-07 06:48:47,006 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-11-07 06:48:47,629 WARN L194 SmtUtils]: Spent 229.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 21 [2020-11-07 06:48:48,039 INFO L269 CegarLoopResult]: At program point reach_errorEXIT(line 3) the Hoare annotation is: true [2020-11-07 06:48:48,039 INFO L269 CegarLoopResult]: At program point reach_errorENTRY(line 3) the Hoare annotation is: true [2020-11-07 06:48:48,039 INFO L269 CegarLoopResult]: At program point reach_errorFINAL(line 3) the Hoare annotation is: true [2020-11-07 06:48:48,039 INFO L269 CegarLoopResult]: At program point reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION(line 3) the Hoare annotation is: true [2020-11-07 06:48:48,039 INFO L269 CegarLoopResult]: At program point L3-2(line 3) the Hoare annotation is: true [2020-11-07 06:48:48,040 INFO L269 CegarLoopResult]: At program point L3-3(line 3) the Hoare annotation is: true [2020-11-07 06:48:48,040 INFO L269 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-11-07 06:48:48,040 INFO L269 CegarLoopResult]: At program point L3-4(line 3) the Hoare annotation is: true [2020-11-07 06:48:48,040 INFO L269 CegarLoopResult]: At program point L-1-1(line -1) the Hoare annotation is: true [2020-11-07 06:48:48,040 INFO L269 CegarLoopResult]: At program point L3-5(line 3) the Hoare annotation is: true [2020-11-07 06:48:48,040 INFO L269 CegarLoopResult]: At program point ULTIMATE.initFINAL(line 3) the Hoare annotation is: true [2020-11-07 06:48:48,041 INFO L269 CegarLoopResult]: At program point L3-6(line 3) the Hoare annotation is: true [2020-11-07 06:48:48,041 INFO L269 CegarLoopResult]: At program point L3-7(line 3) the Hoare annotation is: true [2020-11-07 06:48:48,041 INFO L269 CegarLoopResult]: At program point L3-8(line 3) the Hoare annotation is: true [2020-11-07 06:48:48,041 INFO L269 CegarLoopResult]: At program point L3-9(line 3) the Hoare annotation is: true [2020-11-07 06:48:48,041 INFO L269 CegarLoopResult]: At program point L3-10(line 3) the Hoare annotation is: true [2020-11-07 06:48:48,041 INFO L269 CegarLoopResult]: At program point L3-11(line 3) the Hoare annotation is: true [2020-11-07 06:48:48,041 INFO L262 CegarLoopResult]: 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)|) (= |#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|)) [2020-11-07 06:48:48,042 INFO L269 CegarLoopResult]: At program point L3(line 3) the Hoare annotation is: true [2020-11-07 06:48:48,042 INFO L269 CegarLoopResult]: At program point L3-1(line 3) the Hoare annotation is: true [2020-11-07 06:48:48,042 INFO L269 CegarLoopResult]: At program point ULTIMATE.initEXIT(line -1) the Hoare annotation is: true [2020-11-07 06:48:48,042 INFO L269 CegarLoopResult]: At program point ULTIMATE.startEXIT(line -1) the Hoare annotation is: true [2020-11-07 06:48:48,042 INFO L269 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-11-07 06:48:48,042 INFO L269 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-11-07 06:48:48,042 INFO L269 CegarLoopResult]: At program point ULTIMATE.startFINAL(line -1) the Hoare annotation is: true [2020-11-07 06:48:48,043 INFO L262 CegarLoopResult]: At program point L33(line 33) the Hoare annotation is: (<= main_~x~0 (let ((.cse0 (div main_~x~0 4294967296))) (let ((.cse2 (* .cse0 (- 4294967296)))) (let ((.cse1 (div (+ main_~x~0 .cse2) 3))) (+ (* 4294967296 .cse0) (* 3 .cse1) (* 4294967296 (div (+ main_~x~0 .cse2 (* .cse1 (- 3))) 4294967296))))))) [2020-11-07 06:48:48,043 INFO L269 CegarLoopResult]: At program point L25(line 25) the Hoare annotation is: true [2020-11-07 06:48:48,043 INFO L269 CegarLoopResult]: At program point mainEXIT(lines 14 35) the Hoare annotation is: true [2020-11-07 06:48:48,043 INFO L269 CegarLoopResult]: At program point L25-1(lines 25 28) the Hoare annotation is: true [2020-11-07 06:48:48,044 INFO L262 CegarLoopResult]: At program point L23(line 23) the Hoare annotation is: (<= (let ((.cse0 (div main_~x~0 4294967296))) (let ((.cse2 (* .cse0 (- 4294967296)))) (let ((.cse1 (div (+ main_~x~0 .cse2) 3))) (+ (* 6148914689804861440 .cse0) (* 4294967295 .cse1) (* 6148914688373205674 (div (+ main_~x~0 .cse2 (* .cse1 (- 3))) 4294967296)) 2863311530)))) (* 1431655765 main_~x~0)) [2020-11-07 06:48:48,044 INFO L269 CegarLoopResult]: At program point L25-2(line 25) the Hoare annotation is: true [2020-11-07 06:48:48,044 INFO L262 CegarLoopResult]: At program point L23-1(line 23) the Hoare annotation is: (<= main_~x~0 (let ((.cse0 (div main_~x~0 4294967296))) (let ((.cse2 (* .cse0 (- 4294967296)))) (let ((.cse1 (div (+ main_~x~0 .cse2) 3))) (+ (* 4294967296 .cse0) (* 3 .cse1) (* 4294967296 (div (+ main_~x~0 .cse2 (* .cse1 (- 3))) 4294967296))))))) [2020-11-07 06:48:48,044 INFO L269 CegarLoopResult]: At program point L25-4(line 25) the Hoare annotation is: true [2020-11-07 06:48:48,045 INFO L262 CegarLoopResult]: At program point L25-5(lines 18 31) the Hoare annotation is: (or (= main_~y~0 1) (<= main_~x~0 (let ((.cse0 (div main_~x~0 4294967296))) (let ((.cse2 (* .cse0 (- 4294967296)))) (let ((.cse1 (div (+ main_~x~0 .cse2) 3))) (+ (* 4294967296 .cse0) (* 3 .cse1) (* 4294967296 (div (+ main_~x~0 .cse2 (* .cse1 (- 3))) 4294967296)))))))) [2020-11-07 06:48:48,045 INFO L269 CegarLoopResult]: At program point L19(lines 19 30) the Hoare annotation is: true [2020-11-07 06:48:48,045 INFO L269 CegarLoopResult]: At program point mainFINAL(lines 14 35) the Hoare annotation is: true [2020-11-07 06:48:48,045 INFO L269 CegarLoopResult]: At program point L32(lines 32 33) the Hoare annotation is: true [2020-11-07 06:48:48,045 INFO L269 CegarLoopResult]: At program point mainENTRY(lines 14 35) the Hoare annotation is: true [2020-11-07 06:48:48,045 INFO L269 CegarLoopResult]: At program point L28(line 28) the Hoare annotation is: true [2020-11-07 06:48:48,045 INFO L269 CegarLoopResult]: At program point L28-1(line 28) the Hoare annotation is: true [2020-11-07 06:48:48,046 INFO L269 CegarLoopResult]: At program point L26(line 26) the Hoare annotation is: true [2020-11-07 06:48:48,046 INFO L269 CegarLoopResult]: At program point L26-1(line 26) the Hoare annotation is: true [2020-11-07 06:48:48,046 INFO L269 CegarLoopResult]: At program point L22(lines 22 29) the Hoare annotation is: true [2020-11-07 06:48:48,047 INFO L262 CegarLoopResult]: At program point L20(line 20) the Hoare annotation is: (let ((.cse0 (div main_~x~0 4294967296))) (let ((.cse3 (* .cse0 (- 4294967296)))) (let ((.cse1 (div (+ main_~x~0 .cse3) 3))) (let ((.cse2 (div (+ main_~x~0 .cse3 (* .cse1 (- 3))) 4294967296))) (and (<= (* 1431655765 main_~x~0) (+ (* 6148914689804861440 .cse0) (* 4294967296 .cse1) (* 6148914689804861440 .cse2) 1431655765)) (<= (+ (* 4294967296 .cse0) (* 3 .cse1) (* 4294967296 .cse2) 1) main_~x~0)))))) [2020-11-07 06:48:48,047 INFO L262 CegarLoopResult]: At program point L20-1(line 20) the Hoare annotation is: (<= main_~x~0 (let ((.cse0 (div main_~x~0 4294967296))) (let ((.cse2 (* .cse0 (- 4294967296)))) (let ((.cse1 (div (+ main_~x~0 .cse2) 3))) (+ (* 4294967296 .cse0) (* 3 .cse1) (* 4294967296 (div (+ main_~x~0 .cse2 (* .cse1 (- 3))) 4294967296))))))) [2020-11-07 06:48:48,047 INFO L262 CegarLoopResult]: At program point L18-1(lines 18 31) the Hoare annotation is: (or (= main_~y~0 1) (<= main_~x~0 (let ((.cse0 (div main_~x~0 4294967296))) (let ((.cse2 (* .cse0 (- 4294967296)))) (let ((.cse1 (div (+ main_~x~0 .cse2) 3))) (+ (* 4294967296 .cse0) (* 3 .cse1) (* 4294967296 (div (+ main_~x~0 .cse2 (* .cse1 (- 3))) 4294967296)))))))) [2020-11-07 06:48:48,047 INFO L269 CegarLoopResult]: At program point L16(line 16) the Hoare annotation is: true [2020-11-07 06:48:48,048 INFO L262 CegarLoopResult]: At program point L18-2(line 18) the Hoare annotation is: (or (= main_~y~0 1) (<= main_~x~0 (let ((.cse0 (div main_~x~0 4294967296))) (let ((.cse2 (* .cse0 (- 4294967296)))) (let ((.cse1 (div (+ main_~x~0 .cse2) 3))) (+ (* 4294967296 .cse0) (* 3 .cse1) (* 4294967296 (div (+ main_~x~0 .cse2 (* .cse1 (- 3))) 4294967296)))))))) [2020-11-07 06:48:48,048 INFO L269 CegarLoopResult]: At program point L18-4(line 18) the Hoare annotation is: true [2020-11-07 06:48:48,048 INFO L262 CegarLoopResult]: At program point L18-5(lines 14 35) the Hoare annotation is: (or (= main_~y~0 1) (<= main_~x~0 (let ((.cse0 (div main_~x~0 4294967296))) (let ((.cse2 (* .cse0 (- 4294967296)))) (let ((.cse1 (div (+ main_~x~0 .cse2) 3))) (+ (* 4294967296 .cse0) (* 3 .cse1) (* 4294967296 (div (+ main_~x~0 .cse2 (* .cse1 (- 3))) 4294967296)))))))) [2020-11-07 06:48:48,048 INFO L269 CegarLoopResult]: At program point __VERIFIER_assertENTRY(lines 8 12) the Hoare annotation is: true [2020-11-07 06:48:48,048 INFO L262 CegarLoopResult]: At program point L10(line 10) the Hoare annotation is: (= |__VERIFIER_assert_#in~cond| 0) [2020-11-07 06:48:48,049 INFO L269 CegarLoopResult]: At program point __VERIFIER_assertEXIT(lines 8 12) the Hoare annotation is: true [2020-11-07 06:48:48,049 INFO L262 CegarLoopResult]: At program point L9(lines 9 10) the Hoare annotation is: (or (= |__VERIFIER_assert_#in~cond| 0) (not (= __VERIFIER_assert_~cond 0))) [2020-11-07 06:48:48,049 INFO L262 CegarLoopResult]: At program point L10-1(line 10) the Hoare annotation is: (= |__VERIFIER_assert_#in~cond| 0) [2020-11-07 06:48:48,049 INFO L269 CegarLoopResult]: At program point L9-2(lines 8 12) the Hoare annotation is: true [2020-11-07 06:48:48,069 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 06:48:48 BoogieIcfgContainer [2020-11-07 06:48:48,070 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-07 06:48:48,072 INFO L168 Benchmark]: Toolchain (without parser) took 21002.89 ms. Allocated memory was 151.0 MB in the beginning and 181.4 MB in the end (delta: 30.4 MB). Free memory was 127.7 MB in the beginning and 148.9 MB in the end (delta: -21.2 MB). Peak memory consumption was 97.3 MB. Max. memory is 8.0 GB. [2020-11-07 06:48:48,073 INFO L168 Benchmark]: CDTParser took 0.43 ms. Allocated memory is still 151.0 MB. Free memory is still 125.5 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-11-07 06:48:48,074 INFO L168 Benchmark]: CACSL2BoogieTranslator took 420.28 ms. Allocated memory is still 151.0 MB. Free memory was 127.2 MB in the beginning and 117.5 MB in the end (delta: 9.6 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. [2020-11-07 06:48:48,075 INFO L168 Benchmark]: Boogie Preprocessor took 104.39 ms. Allocated memory is still 151.0 MB. Free memory was 117.5 MB in the beginning and 116.1 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2020-11-07 06:48:48,076 INFO L168 Benchmark]: RCFGBuilder took 781.82 ms. Allocated memory is still 151.0 MB. Free memory was 116.1 MB in the beginning and 132.3 MB in the end (delta: -16.2 MB). Peak memory consumption was 16.9 MB. Max. memory is 8.0 GB. [2020-11-07 06:48:48,077 INFO L168 Benchmark]: TraceAbstraction took 19679.68 ms. Allocated memory was 151.0 MB in the beginning and 181.4 MB in the end (delta: 30.4 MB). Free memory was 131.8 MB in the beginning and 148.9 MB in the end (delta: -17.1 MB). Peak memory consumption was 100.3 MB. Max. memory is 8.0 GB. [2020-11-07 06:48:48,081 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.43 ms. Allocated memory is still 151.0 MB. Free memory is still 125.5 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 420.28 ms. Allocated memory is still 151.0 MB. Free memory was 127.2 MB in the beginning and 117.5 MB in the end (delta: 9.6 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 104.39 ms. Allocated memory is still 151.0 MB. Free memory was 117.5 MB in the beginning and 116.1 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 781.82 ms. Allocated memory is still 151.0 MB. Free memory was 116.1 MB in the beginning and 132.3 MB in the end (delta: -16.2 MB). Peak memory consumption was 16.9 MB. Max. memory is 8.0 GB. * TraceAbstraction took 19679.68 ms. Allocated memory was 151.0 MB in the beginning and 181.4 MB in the end (delta: 30.4 MB). Free memory was 131.8 MB in the beginning and 148.9 MB in the end (delta: -17.1 MB). Peak memory consumption was 100.3 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 3]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 18]: Loop Invariant Derived loop invariant: y == 1 || x <= 4294967296 * (x / 4294967296) + 3 * ((x + x / 4294967296 * -4294967296) / 3) + 4294967296 * ((x + x / 4294967296 * -4294967296 + (x + x / 4294967296 * -4294967296) / 3 * -3) / 4294967296) - ProcedureContractResult [Line: 3]: Procedure Contract for reach_error Derived contract for procedure reach_error: 1 - ProcedureContractResult [Line: 14]: Procedure Contract for main Derived contract for procedure main: 1 - ProcedureContractResult [Line: 8]: Procedure Contract for __VERIFIER_assert Derived contract for procedure __VERIFIER_assert: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 56 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 18.4s, OverallIterations: 4, TraceHistogramMax: 2, AutomataDifference: 16.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 1.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 212 SDtfs, 174 SDslu, 196 SDs, 0 SdLazy, 370 SolverSat, 22 SolverUnsat, 7 SolverUnknown, 0 SolverNotchecked, 14.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 37 GetRequests, 14 SyntacticMatches, 1 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 1.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=56occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 4 MinimizatonAttempts, 21 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 56 LocationsWithAnnotation, 98 PreInvPairs, 146 NumberOfFragments, 522 HoareAnnotationTreeSize, 98 FomulaSimplifications, 4281 FormulaSimplificationTreeSizeReduction, 0.2s HoareSimplificationTime, 56 FomulaSimplificationsInter, 1023 FormulaSimplificationTreeSizeReductionInter, 0.7s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.1s InterpolantComputationTime, 131 NumberOfCodeBlocks, 131 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 127 ConstructedInterpolants, 0 QuantifiedInterpolants, 30157 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 4/4 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...