/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-invariants/const.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-36cd7be [2021-02-24 00:31:02,818 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-02-24 00:31:02,824 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-02-24 00:31:02,884 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-02-24 00:31:02,993 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2021-02-24 00:31:03,018 INFO L113 SettingsManager]: Loading preferences was successful [2021-02-24 00:31:03,018 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-02-24 00:31:03,022 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-02-24 00:31:03,023 INFO L138 SettingsManager]: * sizeof long=4 [2021-02-24 00:31:03,023 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-02-24 00:31:03,023 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-02-24 00:31:03,023 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-02-24 00:31:03,023 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-02-24 00:31:03,024 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-02-24 00:31:03,024 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-02-24 00:31:03,025 INFO L138 SettingsManager]: * sizeof long double=12 [2021-02-24 00:31:03,025 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-02-24 00:31:03,025 INFO L138 SettingsManager]: * Use constant arrays=true [2021-02-24 00:31:03,026 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-02-24 00:31:03,026 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-02-24 00:31:03,027 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2021-02-24 00:31:03,027 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-02-24 00:31:03,027 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-02-24 00:31:03,027 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-24 00:31:03,027 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-02-24 00:31:03,028 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2021-02-24 00:31:03,028 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-02-24 00:31:03,028 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use separate solver for trace checks -> true [2021-02-24 00:31:03,476 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-02-24 00:31:03,503 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-02-24 00:31:03,506 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-02-24 00:31:03,508 INFO L271 PluginConnector]: Initializing CDTParser... [2021-02-24 00:31:03,509 INFO L275 PluginConnector]: CDTParser initialized [2021-02-24 00:31:03,510 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-invariants/const.c [2021-02-24 00:31:03,607 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/156996438/05de7381f0fa45cfb1ecb53262236d2c/FLAG78bdd0280 [2021-02-24 00:31:04,337 INFO L306 CDTParser]: Found 1 translation units. [2021-02-24 00:31:04,338 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-invariants/const.c [2021-02-24 00:31:04,346 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/156996438/05de7381f0fa45cfb1ecb53262236d2c/FLAG78bdd0280 [2021-02-24 00:31:04,690 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/156996438/05de7381f0fa45cfb1ecb53262236d2c [2021-02-24 00:31:04,693 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-02-24 00:31:04,705 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-02-24 00:31:04,710 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-02-24 00:31:04,710 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-02-24 00:31:04,714 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-02-24 00:31:04,715 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.02 12:31:04" (1/1) ... [2021-02-24 00:31:04,717 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1df76a00 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 12:31:04, skipping insertion in model container [2021-02-24 00:31:04,717 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.02 12:31:04" (1/1) ... [2021-02-24 00:31:04,725 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-02-24 00:31:04,741 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-02-24 00:31:04,883 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-invariants/const.c[366,379] [2021-02-24 00:31:04,896 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-24 00:31:04,907 INFO L203 MainTranslator]: Completed pre-run [2021-02-24 00:31:04,922 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-invariants/const.c[366,379] [2021-02-24 00:31:04,925 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-24 00:31:04,942 INFO L208 MainTranslator]: Completed translation [2021-02-24 00:31:04,943 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 12:31:04 WrapperNode [2021-02-24 00:31:04,943 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-02-24 00:31:04,944 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-02-24 00:31:04,945 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-02-24 00:31:04,945 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-02-24 00:31:04,959 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 12:31:04" (1/1) ... [2021-02-24 00:31:04,959 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 12:31:04" (1/1) ... [2021-02-24 00:31:04,968 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 12:31:04" (1/1) ... [2021-02-24 00:31:04,969 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 12:31:04" (1/1) ... [2021-02-24 00:31:04,975 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 12:31:04" (1/1) ... [2021-02-24 00:31:04,980 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 12:31:04" (1/1) ... [2021-02-24 00:31:04,981 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 12:31:04" (1/1) ... [2021-02-24 00:31:04,983 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-02-24 00:31:04,985 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-02-24 00:31:04,985 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-02-24 00:31:04,985 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-02-24 00:31:04,986 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 12:31:04" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-24 00:31:05,096 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-02-24 00:31:05,096 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-02-24 00:31:05,096 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-02-24 00:31:05,097 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-02-24 00:31:05,097 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-02-24 00:31:05,097 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-02-24 00:31:05,097 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-02-24 00:31:05,097 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-02-24 00:31:05,098 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-02-24 00:31:05,098 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2021-02-24 00:31:05,098 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-02-24 00:31:05,098 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-02-24 00:31:05,098 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-02-24 00:31:05,099 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-02-24 00:31:05,099 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-02-24 00:31:05,099 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-02-24 00:31:05,099 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-02-24 00:31:05,099 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-02-24 00:31:05,349 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-02-24 00:31:05,349 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2021-02-24 00:31:05,352 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.02 12:31:05 BoogieIcfgContainer [2021-02-24 00:31:05,353 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-02-24 00:31:05,355 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-02-24 00:31:05,355 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-02-24 00:31:05,360 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-02-24 00:31:05,360 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.02 12:31:04" (1/3) ... [2021-02-24 00:31:05,362 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@402b6809 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.02 12:31:05, skipping insertion in model container [2021-02-24 00:31:05,363 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 12:31:04" (2/3) ... [2021-02-24 00:31:05,363 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@402b6809 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.02 12:31:05, skipping insertion in model container [2021-02-24 00:31:05,364 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.02 12:31:05" (3/3) ... [2021-02-24 00:31:05,366 INFO L111 eAbstractionObserver]: Analyzing ICFG const.c [2021-02-24 00:31:05,383 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2021-02-24 00:31:05,399 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-02-24 00:31:05,476 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-02-24 00:31:05,523 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-02-24 00:31:05,524 INFO L377 AbstractCegarLoop]: Hoare is true [2021-02-24 00:31:05,524 INFO L378 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2021-02-24 00:31:05,524 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-02-24 00:31:05,524 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-02-24 00:31:05,525 INFO L381 AbstractCegarLoop]: Difference is false [2021-02-24 00:31:05,525 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-02-24 00:31:05,525 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-02-24 00:31:05,551 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states. [2021-02-24 00:31:05,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-02-24 00:31:05,569 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 00:31:05,571 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] [2021-02-24 00:31:05,571 INFO L428 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 00:31:05,584 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 00:31:05,584 INFO L82 PathProgramCache]: Analyzing trace with hash -924213387, now seen corresponding path program 1 times [2021-02-24 00:31:05,597 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 00:31:05,598 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2095612139] [2021-02-24 00:31:05,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 00:31:05,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:31:06,022 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:31:06,026 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:31:06,031 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:31:06,032 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:31:06,041 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:31:06,042 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-02-24 00:31:06,058 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:31:06,059 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-24 00:31:06,066 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:31:06,067 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-24 00:31:06,076 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:31:06,077 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:31:06,114 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 00:31:06,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:31:06,132 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:31:06,132 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:31:06,140 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-24 00:31:06,141 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2095612139] [2021-02-24 00:31:06,146 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-24 00:31:06,146 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-02-24 00:31:06,147 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [11619620] [2021-02-24 00:31:06,153 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-02-24 00:31:06,154 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 00:31:06,170 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-02-24 00:31:06,171 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-02-24 00:31:06,174 INFO L87 Difference]: Start difference. First operand 36 states. Second operand 6 states. [2021-02-24 00:31:06,460 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 00:31:06,460 INFO L93 Difference]: Finished difference Result 53 states and 62 transitions. [2021-02-24 00:31:06,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-02-24 00:31:06,463 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 22 [2021-02-24 00:31:06,464 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 00:31:06,471 INFO L225 Difference]: With dead ends: 53 [2021-02-24 00:31:06,471 INFO L226 Difference]: Without dead ends: 0 [2021-02-24 00:31:06,476 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2021-02-24 00:31:06,496 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-02-24 00:31:06,503 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-02-24 00:31:06,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2021-02-24 00:31:06,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-02-24 00:31:06,507 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 22 [2021-02-24 00:31:06,507 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 00:31:06,507 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-02-24 00:31:06,508 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2021-02-24 00:31:06,508 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-02-24 00:31:06,508 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-02-24 00:31:06,508 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-02-24 00:31:06,511 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-02-24 00:31:06,957 INFO L189 CegarLoopUtils]: For program point reach_errorEXIT(line 3) no Hoare annotation was computed. [2021-02-24 00:31:06,958 INFO L189 CegarLoopUtils]: For program point reach_errorENTRY(line 3) no Hoare annotation was computed. [2021-02-24 00:31:06,958 INFO L189 CegarLoopUtils]: For program point reach_errorFINAL(line 3) no Hoare annotation was computed. [2021-02-24 00:31:06,958 INFO L192 CegarLoopUtils]: At program point L3-2(line 3) the Hoare annotation is: true [2021-02-24 00:31:06,958 INFO L192 CegarLoopUtils]: At program point L3-3(line 3) the Hoare annotation is: true [2021-02-24 00:31:06,959 INFO L192 CegarLoopUtils]: At program point L-1(line -1) the Hoare annotation is: true [2021-02-24 00:31:06,959 INFO L192 CegarLoopUtils]: At program point L3-4(line 3) the Hoare annotation is: true [2021-02-24 00:31:06,959 INFO L192 CegarLoopUtils]: At program point L-1-1(line -1) the Hoare annotation is: true [2021-02-24 00:31:06,959 INFO L192 CegarLoopUtils]: At program point ULTIMATE.initFINAL(line 3) the Hoare annotation is: true [2021-02-24 00:31:06,960 INFO L185 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)|) (= |#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|)) [2021-02-24 00:31:06,960 INFO L192 CegarLoopUtils]: At program point L3(line 3) the Hoare annotation is: true [2021-02-24 00:31:06,960 INFO L192 CegarLoopUtils]: At program point L3-1(line 3) the Hoare annotation is: true [2021-02-24 00:31:06,960 INFO L192 CegarLoopUtils]: At program point ULTIMATE.initEXIT(line -1) the Hoare annotation is: true [2021-02-24 00:31:06,960 INFO L192 CegarLoopUtils]: At program point ULTIMATE.startEXIT(line -1) the Hoare annotation is: true [2021-02-24 00:31:06,961 INFO L192 CegarLoopUtils]: At program point L-1(line -1) the Hoare annotation is: true [2021-02-24 00:31:06,961 INFO L192 CegarLoopUtils]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2021-02-24 00:31:06,961 INFO L192 CegarLoopUtils]: At program point ULTIMATE.startFINAL(line -1) the Hoare annotation is: true [2021-02-24 00:31:06,961 INFO L185 CegarLoopUtils]: At program point mainEXIT(lines 11 22) the Hoare annotation is: (= main_~s~0 (* (div main_~s~0 4294967296) 4294967296)) [2021-02-24 00:31:06,961 INFO L185 CegarLoopUtils]: At program point L17(line 17) the Hoare annotation is: (= main_~s~0 (* (div main_~s~0 4294967296) 4294967296)) [2021-02-24 00:31:06,962 INFO L185 CegarLoopUtils]: At program point L17-1(line 17) the Hoare annotation is: (= main_~s~0 (* (div main_~s~0 4294967296) 4294967296)) [2021-02-24 00:31:06,962 INFO L185 CegarLoopUtils]: At program point L15(line 15) the Hoare annotation is: false [2021-02-24 00:31:06,962 INFO L185 CegarLoopUtils]: At program point L17-2(lines 13 20) the Hoare annotation is: (= main_~s~0 (* (div main_~s~0 4294967296) 4294967296)) [2021-02-24 00:31:06,962 INFO L185 CegarLoopUtils]: At program point L15-1(line 15) the Hoare annotation is: false [2021-02-24 00:31:06,963 INFO L185 CegarLoopUtils]: At program point L15-2(line 15) the Hoare annotation is: false [2021-02-24 00:31:06,963 INFO L185 CegarLoopUtils]: At program point mainFINAL(lines 11 22) the Hoare annotation is: (= main_~s~0 (* (div main_~s~0 4294967296) 4294967296)) [2021-02-24 00:31:06,963 INFO L185 CegarLoopUtils]: At program point L13-1(line 13) the Hoare annotation is: (= main_~s~0 (* (div main_~s~0 4294967296) 4294967296)) [2021-02-24 00:31:06,963 INFO L185 CegarLoopUtils]: At program point L13-3(line 13) the Hoare annotation is: (= main_~s~0 (* (div main_~s~0 4294967296) 4294967296)) [2021-02-24 00:31:06,964 INFO L185 CegarLoopUtils]: At program point L13-4(lines 13 20) the Hoare annotation is: (= main_~s~0 (* (div main_~s~0 4294967296) 4294967296)) [2021-02-24 00:31:06,964 INFO L192 CegarLoopUtils]: At program point mainENTRY(lines 11 22) the Hoare annotation is: true [2021-02-24 00:31:06,964 INFO L185 CegarLoopUtils]: At program point L18(line 18) the Hoare annotation is: (= main_~s~0 (* (div main_~s~0 4294967296) 4294967296)) [2021-02-24 00:31:06,964 INFO L185 CegarLoopUtils]: At program point L14(lines 14 16) the Hoare annotation is: (= main_~s~0 (* (div main_~s~0 4294967296) 4294967296)) [2021-02-24 00:31:06,965 INFO L185 CegarLoopUtils]: At program point L14-2(lines 13 20) the Hoare annotation is: (= main_~s~0 (* (div main_~s~0 4294967296) 4294967296)) [2021-02-24 00:31:06,965 INFO L192 CegarLoopUtils]: At program point __VERIFIER_assertENTRY(lines 5 10) the Hoare annotation is: true [2021-02-24 00:31:06,965 INFO L185 CegarLoopUtils]: At program point __VERIFIER_assertEXIT(lines 5 10) the Hoare annotation is: (or (= |__VERIFIER_assert_#in~cond| 0) (not (= __VERIFIER_assert_~cond 0))) [2021-02-24 00:31:06,965 INFO L185 CegarLoopUtils]: At program point L7(line 7) the Hoare annotation is: (= |__VERIFIER_assert_#in~cond| 0) [2021-02-24 00:31:06,966 INFO L185 CegarLoopUtils]: At program point L6(lines 6 8) the Hoare annotation is: (or (= |__VERIFIER_assert_#in~cond| 0) (not (= __VERIFIER_assert_~cond 0))) [2021-02-24 00:31:06,966 INFO L185 CegarLoopUtils]: At program point L7-1(line 7) the Hoare annotation is: (= |__VERIFIER_assert_#in~cond| 0) [2021-02-24 00:31:06,966 INFO L185 CegarLoopUtils]: At program point L6-2(lines 5 10) the Hoare annotation is: (or (= |__VERIFIER_assert_#in~cond| 0) (not (= __VERIFIER_assert_~cond 0))) [2021-02-24 00:31:06,966 INFO L185 CegarLoopUtils]: At program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 7) the Hoare annotation is: (= |__VERIFIER_assert_#in~cond| 0) [2021-02-24 00:31:06,987 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.02 12:31:06 BoogieIcfgContainer [2021-02-24 00:31:06,987 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-02-24 00:31:06,990 INFO L168 Benchmark]: Toolchain (without parser) took 2293.79 ms. Allocated memory was 173.0 MB in the beginning and 229.6 MB in the end (delta: 56.6 MB). Free memory was 149.8 MB in the beginning and 191.4 MB in the end (delta: -41.6 MB). Peak memory consumption was 93.9 MB. Max. memory is 8.0 GB. [2021-02-24 00:31:06,991 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 173.0 MB. Free memory is still 146.0 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-02-24 00:31:06,992 INFO L168 Benchmark]: CACSL2BoogieTranslator took 233.68 ms. Allocated memory is still 173.0 MB. Free memory was 148.7 MB in the beginning and 139.0 MB in the end (delta: 9.7 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. [2021-02-24 00:31:06,993 INFO L168 Benchmark]: Boogie Preprocessor took 39.32 ms. Allocated memory is still 173.0 MB. Free memory was 139.0 MB in the beginning and 137.6 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-02-24 00:31:06,994 INFO L168 Benchmark]: RCFGBuilder took 368.32 ms. Allocated memory is still 173.0 MB. Free memory was 137.4 MB in the beginning and 123.7 MB in the end (delta: 13.6 MB). Peak memory consumption was 13.6 MB. Max. memory is 8.0 GB. [2021-02-24 00:31:06,995 INFO L168 Benchmark]: TraceAbstraction took 1632.33 ms. Allocated memory was 173.0 MB in the beginning and 229.6 MB in the end (delta: 56.6 MB). Free memory was 123.3 MB in the beginning and 191.4 MB in the end (delta: -68.1 MB). Peak memory consumption was 67.7 MB. Max. memory is 8.0 GB. [2021-02-24 00:31:06,999 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 173.0 MB. Free memory is still 146.0 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 233.68 ms. Allocated memory is still 173.0 MB. Free memory was 148.7 MB in the beginning and 139.0 MB in the end (delta: 9.7 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 39.32 ms. Allocated memory is still 173.0 MB. Free memory was 139.0 MB in the beginning and 137.6 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 368.32 ms. Allocated memory is still 173.0 MB. Free memory was 137.4 MB in the beginning and 123.7 MB in the end (delta: 13.6 MB). Peak memory consumption was 13.6 MB. Max. memory is 8.0 GB. * TraceAbstraction took 1632.33 ms. Allocated memory was 173.0 MB in the beginning and 229.6 MB in the end (delta: 56.6 MB). Free memory was 123.3 MB in the beginning and 191.4 MB in the end (delta: -68.1 MB). Peak memory consumption was 67.7 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 7]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 13]: Loop Invariant Derived loop invariant: s == s / 4294967296 * 4294967296 - ProcedureContractResult [Line: 11]: Procedure Contract for main Derived contract for procedure main: s == s / 4294967296 * 4294967296 - ProcedureContractResult [Line: 5]: Procedure Contract for __VERIFIER_assert Derived contract for procedure __VERIFIER_assert: \old(cond) == 0 || !(cond == 0) - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 39 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 0.9s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.4s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 27 SDtfs, 28 SDslu, 48 SDs, 0 SdLazy, 41 SolverSat, 6 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=36occurred 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: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 36 LocationsWithAnnotation, 43 PreInvPairs, 58 NumberOfFragments, 159 HoareAnnotationTreeSize, 43 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 36 FomulaSimplificationsInter, 514 FormulaSimplificationTreeSizeReductionInter, 0.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 22 NumberOfCodeBlocks, 22 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 21 ConstructedInterpolants, 0 QuantifiedInterpolants, 1575 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 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...