/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf -i ../../../trunk/examples/svcomp/ldv-regression/test28-2.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-86f66a4 [2020-07-07 13:24:38,242 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-07 13:24:38,245 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-07 13:24:38,258 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-07 13:24:38,258 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-07 13:24:38,259 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-07 13:24:38,261 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-07 13:24:38,263 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-07 13:24:38,265 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-07 13:24:38,266 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-07 13:24:38,267 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-07 13:24:38,268 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-07 13:24:38,268 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-07 13:24:38,269 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-07 13:24:38,270 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-07 13:24:38,272 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-07 13:24:38,272 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-07 13:24:38,273 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-07 13:24:38,275 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-07 13:24:38,277 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-07 13:24:38,279 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-07 13:24:38,280 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-07 13:24:38,281 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-07 13:24:38,282 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-07 13:24:38,285 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-07 13:24:38,285 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-07 13:24:38,285 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-07 13:24:38,286 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-07 13:24:38,287 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-07 13:24:38,288 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-07 13:24:38,288 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-07 13:24:38,289 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-07 13:24:38,290 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-07 13:24:38,291 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-07 13:24:38,292 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-07 13:24:38,292 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-07 13:24:38,293 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-07 13:24:38,293 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-07 13:24:38,293 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-07 13:24:38,294 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-07 13:24:38,295 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-07 13:24:38,296 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-07-07 13:24:38,306 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-07 13:24:38,306 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-07 13:24:38,308 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-07 13:24:38,308 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-07 13:24:38,308 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-07 13:24:38,308 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-07 13:24:38,309 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-07 13:24:38,309 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-07 13:24:38,309 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-07 13:24:38,309 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-07 13:24:38,310 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-07 13:24:38,310 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-07 13:24:38,310 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-07 13:24:38,310 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-07 13:24:38,310 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-07 13:24:38,311 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-07-07 13:24:38,311 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-07 13:24:38,311 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-07 13:24:38,311 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-07 13:24:38,311 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-07 13:24:38,312 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-07-07 13:24:38,312 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-07 13:24:38,312 INFO L138 SettingsManager]: * Use separate solver for trace checks=false [2020-07-07 13:24:38,706 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-07 13:24:38,718 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-07 13:24:38,722 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-07 13:24:38,723 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-07 13:24:38,724 INFO L275 PluginConnector]: CDTParser initialized [2020-07-07 13:24:38,724 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-regression/test28-2.c [2020-07-07 13:24:38,790 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/216079381/1ab3f419f8a0428084c5bf6d6d186cf9/FLAGbff3ff35a [2020-07-07 13:24:39,220 INFO L306 CDTParser]: Found 1 translation units. [2020-07-07 13:24:39,220 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-regression/test28-2.c [2020-07-07 13:24:39,227 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/216079381/1ab3f419f8a0428084c5bf6d6d186cf9/FLAGbff3ff35a [2020-07-07 13:24:39,621 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/216079381/1ab3f419f8a0428084c5bf6d6d186cf9 [2020-07-07 13:24:39,636 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-07 13:24:39,639 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-07 13:24:39,642 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-07 13:24:39,642 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-07 13:24:39,646 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-07 13:24:39,647 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.07 01:24:39" (1/1) ... [2020-07-07 13:24:39,651 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2c0efb7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 01:24:39, skipping insertion in model container [2020-07-07 13:24:39,651 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.07 01:24:39" (1/1) ... [2020-07-07 13:24:39,661 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-07 13:24:39,681 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-07 13:24:39,928 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-07 13:24:39,943 INFO L203 MainTranslator]: Completed pre-run [2020-07-07 13:24:39,964 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-07 13:24:39,984 INFO L208 MainTranslator]: Completed translation [2020-07-07 13:24:39,984 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 01:24:39 WrapperNode [2020-07-07 13:24:39,984 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-07 13:24:39,985 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-07 13:24:39,986 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-07 13:24:39,986 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-07 13:24:40,002 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 01:24:39" (1/1) ... [2020-07-07 13:24:40,003 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 01:24:39" (1/1) ... [2020-07-07 13:24:40,126 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 01:24:39" (1/1) ... [2020-07-07 13:24:40,127 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 01:24:39" (1/1) ... [2020-07-07 13:24:40,136 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 01:24:39" (1/1) ... [2020-07-07 13:24:40,143 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 01:24:39" (1/1) ... [2020-07-07 13:24:40,151 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 01:24:39" (1/1) ... [2020-07-07 13:24:40,153 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-07 13:24:40,154 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-07 13:24:40,154 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-07 13:24:40,154 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-07 13:24:40,155 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 01:24:39" (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 [2020-07-07 13:24:40,222 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-07 13:24:40,223 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-07 13:24:40,223 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-07 13:24:40,223 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-07 13:24:40,223 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-07 13:24:40,223 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-07 13:24:40,224 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-07 13:24:40,224 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-07 13:24:40,224 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-07 13:24:40,224 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-07 13:24:40,224 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-07 13:24:40,224 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-07 13:24:40,554 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-07 13:24:40,555 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-07-07 13:24:40,567 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.07 01:24:40 BoogieIcfgContainer [2020-07-07 13:24:40,567 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-07 13:24:40,575 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-07 13:24:40,577 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-07 13:24:40,587 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-07 13:24:40,587 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.07 01:24:39" (1/3) ... [2020-07-07 13:24:40,590 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f21daff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.07 01:24:40, skipping insertion in model container [2020-07-07 13:24:40,590 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 01:24:39" (2/3) ... [2020-07-07 13:24:40,591 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f21daff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.07 01:24:40, skipping insertion in model container [2020-07-07 13:24:40,591 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.07 01:24:40" (3/3) ... [2020-07-07 13:24:40,593 INFO L109 eAbstractionObserver]: Analyzing ICFG test28-2.c [2020-07-07 13:24:40,603 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-07-07 13:24:40,611 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-07 13:24:40,623 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-07 13:24:40,644 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-07 13:24:40,644 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-07 13:24:40,644 INFO L377 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-07-07 13:24:40,644 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-07 13:24:40,645 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-07 13:24:40,645 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-07 13:24:40,645 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-07 13:24:40,646 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-07 13:24:40,662 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states. [2020-07-07 13:24:40,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-07-07 13:24:40,672 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 13:24:40,674 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] [2020-07-07 13:24:40,674 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 13:24:40,681 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 13:24:40,681 INFO L82 PathProgramCache]: Analyzing trace with hash -374520961, now seen corresponding path program 1 times [2020-07-07 13:24:40,690 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 13:24:40,691 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [106075103] [2020-07-07 13:24:40,691 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 13:24:40,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:24:40,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:24:40,928 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 13:24:40,929 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 13:24:40,931 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [106075103] [2020-07-07 13:24:40,933 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 13:24:40,933 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-07 13:24:40,934 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2137892120] [2020-07-07 13:24:40,939 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-07 13:24:40,940 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-07 13:24:40,955 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-07 13:24:40,956 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-07 13:24:40,959 INFO L87 Difference]: Start difference. First operand 45 states. Second operand 4 states. [2020-07-07 13:24:41,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 13:24:41,088 INFO L93 Difference]: Finished difference Result 54 states and 57 transitions. [2020-07-07 13:24:41,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-07-07 13:24:41,090 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 24 [2020-07-07 13:24:41,091 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 13:24:41,101 INFO L225 Difference]: With dead ends: 54 [2020-07-07 13:24:41,101 INFO L226 Difference]: Without dead ends: 29 [2020-07-07 13:24:41,105 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-07 13:24:41,125 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2020-07-07 13:24:41,146 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2020-07-07 13:24:41,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2020-07-07 13:24:41,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 30 transitions. [2020-07-07 13:24:41,152 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 30 transitions. Word has length 24 [2020-07-07 13:24:41,152 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 13:24:41,152 INFO L479 AbstractCegarLoop]: Abstraction has 29 states and 30 transitions. [2020-07-07 13:24:41,153 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-07 13:24:41,153 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 30 transitions. [2020-07-07 13:24:41,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-07-07 13:24:41,154 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 13:24:41,154 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] [2020-07-07 13:24:41,155 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-07 13:24:41,155 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 13:24:41,155 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 13:24:41,155 INFO L82 PathProgramCache]: Analyzing trace with hash 1400624444, now seen corresponding path program 1 times [2020-07-07 13:24:41,156 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 13:24:41,156 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [7900257] [2020-07-07 13:24:41,156 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 13:24:41,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:24:41,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:24:41,294 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 13:24:41,294 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 13:24:41,295 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [7900257] [2020-07-07 13:24:41,295 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 13:24:41,295 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-07-07 13:24:41,296 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1565827047] [2020-07-07 13:24:41,297 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-07 13:24:41,297 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-07 13:24:41,298 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-07 13:24:41,298 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-07-07 13:24:41,298 INFO L87 Difference]: Start difference. First operand 29 states and 30 transitions. Second operand 7 states. [2020-07-07 13:24:41,457 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 13:24:41,458 INFO L93 Difference]: Finished difference Result 52 states and 52 transitions. [2020-07-07 13:24:41,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-07 13:24:41,459 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 26 [2020-07-07 13:24:41,459 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 13:24:41,460 INFO L225 Difference]: With dead ends: 52 [2020-07-07 13:24:41,461 INFO L226 Difference]: Without dead ends: 42 [2020-07-07 13:24:41,463 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2020-07-07 13:24:41,464 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2020-07-07 13:24:41,475 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 32. [2020-07-07 13:24:41,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2020-07-07 13:24:41,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 33 transitions. [2020-07-07 13:24:41,477 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 33 transitions. Word has length 26 [2020-07-07 13:24:41,478 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 13:24:41,478 INFO L479 AbstractCegarLoop]: Abstraction has 32 states and 33 transitions. [2020-07-07 13:24:41,478 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-07 13:24:41,478 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 33 transitions. [2020-07-07 13:24:41,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-07-07 13:24:41,479 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 13:24:41,480 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] [2020-07-07 13:24:41,480 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-07 13:24:41,480 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 13:24:41,481 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 13:24:41,481 INFO L82 PathProgramCache]: Analyzing trace with hash -316312164, now seen corresponding path program 1 times [2020-07-07 13:24:41,481 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 13:24:41,481 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1204307992] [2020-07-07 13:24:41,482 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 13:24:41,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:24:41,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:24:41,779 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 13:24:41,779 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 13:24:41,779 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1204307992] [2020-07-07 13:24:41,780 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 13:24:41,780 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-07-07 13:24:41,781 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1419610810] [2020-07-07 13:24:41,782 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-07-07 13:24:41,782 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-07 13:24:41,782 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-07-07 13:24:41,783 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2020-07-07 13:24:41,783 INFO L87 Difference]: Start difference. First operand 32 states and 33 transitions. Second operand 10 states. [2020-07-07 13:24:41,985 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 13:24:41,985 INFO L93 Difference]: Finished difference Result 42 states and 42 transitions. [2020-07-07 13:24:41,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-07-07 13:24:41,986 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 26 [2020-07-07 13:24:41,986 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 13:24:41,987 INFO L225 Difference]: With dead ends: 42 [2020-07-07 13:24:41,987 INFO L226 Difference]: Without dead ends: 28 [2020-07-07 13:24:41,988 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=57, Invalid=153, Unknown=0, NotChecked=0, Total=210 [2020-07-07 13:24:41,989 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2020-07-07 13:24:41,995 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2020-07-07 13:24:41,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2020-07-07 13:24:41,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 28 transitions. [2020-07-07 13:24:41,997 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 28 transitions. Word has length 26 [2020-07-07 13:24:41,997 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 13:24:41,997 INFO L479 AbstractCegarLoop]: Abstraction has 28 states and 28 transitions. [2020-07-07 13:24:41,997 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-07-07 13:24:41,997 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 28 transitions. [2020-07-07 13:24:41,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-07-07 13:24:41,998 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 13:24:41,998 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] [2020-07-07 13:24:41,999 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-07-07 13:24:41,999 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 13:24:41,999 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 13:24:42,000 INFO L82 PathProgramCache]: Analyzing trace with hash -497457956, now seen corresponding path program 1 times [2020-07-07 13:24:42,000 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 13:24:42,000 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1799021745] [2020-07-07 13:24:42,000 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 13:24:42,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:24:42,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:24:42,090 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 13:24:42,091 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 13:24:42,091 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1799021745] [2020-07-07 13:24:42,092 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 13:24:42,092 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-07-07 13:24:42,092 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1995972372] [2020-07-07 13:24:42,092 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-07-07 13:24:42,093 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-07 13:24:42,093 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-07-07 13:24:42,093 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-07-07 13:24:42,094 INFO L87 Difference]: Start difference. First operand 28 states and 28 transitions. Second operand 9 states. [2020-07-07 13:24:42,193 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 13:24:42,194 INFO L93 Difference]: Finished difference Result 28 states and 28 transitions. [2020-07-07 13:24:42,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-07-07 13:24:42,194 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 26 [2020-07-07 13:24:42,194 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 13:24:42,195 INFO L225 Difference]: With dead ends: 28 [2020-07-07 13:24:42,195 INFO L226 Difference]: Without dead ends: 0 [2020-07-07 13:24:42,196 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=54, Invalid=128, Unknown=0, NotChecked=0, Total=182 [2020-07-07 13:24:42,196 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-07 13:24:42,196 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-07 13:24:42,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-07 13:24:42,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-07 13:24:42,197 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 26 [2020-07-07 13:24:42,197 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 13:24:42,197 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-07 13:24:42,197 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-07-07 13:24:42,198 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-07 13:24:42,198 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-07 13:24:42,198 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-07-07 13:24:42,200 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-07 13:24:42,521 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-07-07 13:24:42,522 INFO L271 CegarLoopResult]: At program point L-1-1(line -1) the Hoare annotation is: true [2020-07-07 13:24:42,522 INFO L271 CegarLoopResult]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2020-07-07 13:24:42,522 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|)) [2020-07-07 13:24:42,522 INFO L271 CegarLoopResult]: At program point ULTIMATE.initEXIT(line -1) the Hoare annotation is: true [2020-07-07 13:24:42,523 INFO L271 CegarLoopResult]: At program point ULTIMATE.startEXIT(line -1) the Hoare annotation is: true [2020-07-07 13:24:42,523 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-07-07 13:24:42,523 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-07-07 13:24:42,523 INFO L271 CegarLoopResult]: At program point ULTIMATE.startFINAL(line -1) the Hoare annotation is: true [2020-07-07 13:24:42,524 INFO L264 CegarLoopResult]: At program point L27(line 27) the Hoare annotation is: false [2020-07-07 13:24:42,524 INFO L271 CegarLoopResult]: At program point mainEXIT(lines 10 28) the Hoare annotation is: true [2020-07-07 13:24:42,524 INFO L264 CegarLoopResult]: At program point L15(lines 15 19) the Hoare annotation is: (let ((.cse0 (not (= |main_~#d1~0.base| |main_~#d2~0.base|))) (.cse1 (= 0 |main_~#d2~0.offset|)) (.cse2 (= 1 (select |#valid| |main_~#d1~0.base|)))) (or (and (= |main_~#d2~0.offset| main_~pd~0.offset) (= main_~pd~0.base |main_~#d2~0.base|) .cse0 .cse1 .cse2) (and .cse0 .cse1 .cse2 (= |main_~#d1~0.base| main_~pd~0.base)))) [2020-07-07 13:24:42,524 INFO L271 CegarLoopResult]: At program point L24(line 24) the Hoare annotation is: true [2020-07-07 13:24:42,525 INFO L264 CegarLoopResult]: At program point L20(line 20) the Hoare annotation is: (let ((.cse0 (not (= |main_~#d1~0.base| |main_~#d2~0.base|))) (.cse1 (= 0 |main_~#d2~0.offset|)) (.cse2 (= 1 (select |#valid| |main_~#d1~0.base|)))) (or (and .cse0 .cse1 .cse2 (not |main_#t~short3|) (= |main_~#d1~0.base| main_~pd~0.base)) (and (= |main_~#d2~0.offset| main_~pd~0.offset) (= 0 (select (select |#memory_int| |main_~#d2~0.base|) (+ |main_~#d2~0.offset| 4))) (= main_~pd~0.base |main_~#d2~0.base|) .cse0 .cse1 .cse2))) [2020-07-07 13:24:42,525 INFO L264 CegarLoopResult]: At program point L20-1(line 20) the Hoare annotation is: (and (= |main_~#d2~0.offset| main_~pd~0.offset) (= 0 (select (select |#memory_int| |main_~#d2~0.base|) (+ |main_~#d2~0.offset| 4))) (= main_~pd~0.base |main_~#d2~0.base|) (not (= |main_~#d1~0.base| |main_~#d2~0.base|)) (= 0 |main_~#d2~0.offset|) (= 1 (select |#valid| |main_~#d1~0.base|))) [2020-07-07 13:24:42,526 INFO L264 CegarLoopResult]: At program point L20-2(line 20) the Hoare annotation is: (and (= |main_~#d2~0.offset| main_~pd~0.offset) (= 0 (select (select |#memory_int| |main_~#d2~0.base|) (+ |main_~#d2~0.offset| 4))) (= 0 |main_#t~mem2|) (= main_~pd~0.base |main_~#d2~0.base|) (not (= |main_~#d1~0.base| |main_~#d2~0.base|)) (= 0 |main_~#d2~0.offset|) (= 1 (select |#valid| |main_~#d1~0.base|))) [2020-07-07 13:24:42,526 INFO L264 CegarLoopResult]: At program point L16(line 16) the Hoare annotation is: (and (not (= |main_~#d1~0.base| |main_~#d2~0.base|)) (= 0 |main_~#d2~0.offset|) (= 1 (select |#valid| |main_~#d1~0.base|)) (= |main_~#d1~0.base| main_~pd~0.base)) [2020-07-07 13:24:42,526 INFO L264 CegarLoopResult]: At program point L20-4(lines 20 22) the Hoare annotation is: (not |main_#t~short3|) [2020-07-07 13:24:42,526 INFO L264 CegarLoopResult]: At program point L20-5(line 20) the Hoare annotation is: false [2020-07-07 13:24:42,527 INFO L264 CegarLoopResult]: At program point L20-6(line 20) the Hoare annotation is: false [2020-07-07 13:24:42,527 INFO L264 CegarLoopResult]: At program point L20-7(line 20) the Hoare annotation is: (not |main_#t~short3|) [2020-07-07 13:24:42,527 INFO L264 CegarLoopResult]: At program point L12(line 12) the Hoare annotation is: (= 1 (select |#valid| |main_~#d1~0.base|)) [2020-07-07 13:24:42,527 INFO L264 CegarLoopResult]: At program point L20-8(line 20) the Hoare annotation is: (not |main_#t~short3|) [2020-07-07 13:24:42,528 INFO L264 CegarLoopResult]: At program point L12-1(line 12) the Hoare annotation is: (and (not (= |main_~#d1~0.base| |main_~#d2~0.base|)) (= 0 |main_~#d2~0.offset|) (= 1 (select |#valid| |main_~#d1~0.base|))) [2020-07-07 13:24:42,528 INFO L271 CegarLoopResult]: At program point L12-2(line 12) the Hoare annotation is: true [2020-07-07 13:24:42,528 INFO L271 CegarLoopResult]: At program point L12-3(line 12) the Hoare annotation is: true [2020-07-07 13:24:42,528 INFO L271 CegarLoopResult]: At program point L12-4(line 12) the Hoare annotation is: true [2020-07-07 13:24:42,529 INFO L271 CegarLoopResult]: At program point L12-5(line 12) the Hoare annotation is: true [2020-07-07 13:24:42,529 INFO L264 CegarLoopResult]: At program point L12-6(line 12) the Hoare annotation is: false [2020-07-07 13:24:42,529 INFO L264 CegarLoopResult]: At program point L12-7(line 12) the Hoare annotation is: false [2020-07-07 13:24:42,529 INFO L264 CegarLoopResult]: At program point L12-8(line 12) the Hoare annotation is: false [2020-07-07 13:24:42,529 INFO L264 CegarLoopResult]: At program point L12-9(line 12) the Hoare annotation is: false [2020-07-07 13:24:42,530 INFO L264 CegarLoopResult]: At program point L21(lines 11 28) the Hoare annotation is: false [2020-07-07 13:24:42,530 INFO L264 CegarLoopResult]: At program point L13(line 13) the Hoare annotation is: (and (not (= |main_~#d1~0.base| |main_~#d2~0.base|)) (= 0 |main_~#d2~0.offset|) (= 1 (select |#valid| |main_~#d1~0.base|))) [2020-07-07 13:24:42,530 INFO L271 CegarLoopResult]: At program point mainFINAL(lines 10 28) the Hoare annotation is: true [2020-07-07 13:24:42,530 INFO L264 CegarLoopResult]: At program point L13-1(line 13) the Hoare annotation is: (and (not (= |main_~#d1~0.base| |main_~#d2~0.base|)) (= 0 |main_~#d2~0.offset|) (= 1 (select |#valid| |main_~#d1~0.base|))) [2020-07-07 13:24:42,531 INFO L264 CegarLoopResult]: At program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 26) the Hoare annotation is: false [2020-07-07 13:24:42,531 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 10 28) the Hoare annotation is: (= |#valid| |old(#valid)|) [2020-07-07 13:24:42,531 INFO L264 CegarLoopResult]: At program point L18(line 18) the Hoare annotation is: (let ((.cse0 (not (= |main_~#d1~0.base| |main_~#d2~0.base|))) (.cse1 (= 0 |main_~#d2~0.offset|)) (.cse2 (= 1 (select |#valid| |main_~#d1~0.base|)))) (or (and (= |main_~#d2~0.offset| main_~pd~0.offset) (= main_~pd~0.base |main_~#d2~0.base|) .cse0 .cse1 .cse2) (and .cse0 .cse1 .cse2 (= |main_~#d1~0.base| main_~pd~0.base)))) [2020-07-07 13:24:42,532 INFO L264 CegarLoopResult]: At program point L18-1(lines 15 19) the Hoare annotation is: (let ((.cse0 (not (= |main_~#d1~0.base| |main_~#d2~0.base|))) (.cse1 (= 0 |main_~#d2~0.offset|)) (.cse2 (= 1 (select |#valid| |main_~#d1~0.base|)))) (or (and .cse0 .cse1 .cse2 (= |main_~#d1~0.base| main_~pd~0.base)) (and (= |main_~#d2~0.offset| main_~pd~0.offset) (= 0 (select (select |#memory_int| |main_~#d2~0.base|) (+ |main_~#d2~0.offset| 4))) (= main_~pd~0.base |main_~#d2~0.base|) .cse0 .cse1 .cse2))) [2020-07-07 13:24:42,532 INFO L264 CegarLoopResult]: At program point L14(line 14) the Hoare annotation is: (and (not (= |main_~#d1~0.base| |main_~#d2~0.base|)) (= 0 |main_~#d2~0.offset|) (= 1 (select |#valid| |main_~#d1~0.base|))) [2020-07-07 13:24:42,532 INFO L264 CegarLoopResult]: At program point L14-1(line 14) the Hoare annotation is: (and (not (= |main_~#d1~0.base| |main_~#d2~0.base|)) (= 0 |main_~#d2~0.offset|) (= 1 (select |#valid| |main_~#d1~0.base|))) [2020-07-07 13:24:42,533 INFO L264 CegarLoopResult]: At program point L14-3(line 14) the Hoare annotation is: (and (not (= |main_~#d1~0.base| |main_~#d2~0.base|)) (= 0 |main_~#d2~0.offset|) (= 1 (select |#valid| |main_~#d1~0.base|))) [2020-07-07 13:24:42,533 INFO L264 CegarLoopResult]: At program point L14-4(line 14) the Hoare annotation is: (let ((.cse0 (not (= |main_~#d1~0.base| |main_~#d2~0.base|))) (.cse1 (= 0 |main_~#d2~0.offset|)) (.cse2 (= 1 (select |#valid| |main_~#d1~0.base|)))) (or (and (= |main_~#d1~0.base| |main_#t~ite1.base|) .cse0 .cse1 .cse2) (and .cse0 (= |main_#t~ite1.base| |main_~#d2~0.base|) .cse1 (= |main_#t~ite1.offset| 0) .cse2))) [2020-07-07 13:24:42,533 INFO L264 CegarLoopResult]: At program point L14-5(line 14) the Hoare annotation is: (let ((.cse0 (not (= |main_~#d1~0.base| |main_~#d2~0.base|))) (.cse1 (= 0 |main_~#d2~0.offset|)) (.cse2 (= 1 (select |#valid| |main_~#d1~0.base|)))) (or (and (= |main_~#d1~0.base| |main_#t~ite1.base|) .cse0 .cse1 .cse2 (= |main_~#d1~0.base| main_~pd~0.base)) (and (= |main_~#d2~0.offset| main_~pd~0.offset) (= main_~pd~0.base |main_~#d2~0.base|) .cse0 (= |main_#t~ite1.base| |main_~#d2~0.base|) .cse1 (= |main_#t~ite1.offset| 0) .cse2))) [2020-07-07 13:24:42,548 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.07 01:24:42 BoogieIcfgContainer [2020-07-07 13:24:42,548 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-07 13:24:42,551 INFO L168 Benchmark]: Toolchain (without parser) took 2911.18 ms. Allocated memory was 139.5 MB in the beginning and 234.9 MB in the end (delta: 95.4 MB). Free memory was 104.9 MB in the beginning and 91.9 MB in the end (delta: 13.0 MB). Peak memory consumption was 108.4 MB. Max. memory is 7.1 GB. [2020-07-07 13:24:42,552 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 139.5 MB. Free memory was 122.9 MB in the beginning and 122.6 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-07-07 13:24:42,553 INFO L168 Benchmark]: CACSL2BoogieTranslator took 342.91 ms. Allocated memory is still 139.5 MB. Free memory was 104.7 MB in the beginning and 94.9 MB in the end (delta: 9.8 MB). Peak memory consumption was 9.8 MB. Max. memory is 7.1 GB. [2020-07-07 13:24:42,554 INFO L168 Benchmark]: Boogie Preprocessor took 167.59 ms. Allocated memory was 139.5 MB in the beginning and 201.3 MB in the end (delta: 61.9 MB). Free memory was 94.9 MB in the beginning and 179.6 MB in the end (delta: -84.7 MB). Peak memory consumption was 14.8 MB. Max. memory is 7.1 GB. [2020-07-07 13:24:42,555 INFO L168 Benchmark]: RCFGBuilder took 413.66 ms. Allocated memory is still 201.3 MB. Free memory was 179.6 MB in the beginning and 163.6 MB in the end (delta: 15.9 MB). Peak memory consumption was 15.9 MB. Max. memory is 7.1 GB. [2020-07-07 13:24:42,556 INFO L168 Benchmark]: TraceAbstraction took 1972.79 ms. Allocated memory was 201.3 MB in the beginning and 234.9 MB in the end (delta: 33.6 MB). Free memory was 163.6 MB in the beginning and 91.9 MB in the end (delta: 71.7 MB). Peak memory consumption was 105.3 MB. Max. memory is 7.1 GB. [2020-07-07 13:24:42,561 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 139.5 MB. Free memory was 122.9 MB in the beginning and 122.6 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 342.91 ms. Allocated memory is still 139.5 MB. Free memory was 104.7 MB in the beginning and 94.9 MB in the end (delta: 9.8 MB). Peak memory consumption was 9.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 167.59 ms. Allocated memory was 139.5 MB in the beginning and 201.3 MB in the end (delta: 61.9 MB). Free memory was 94.9 MB in the beginning and 179.6 MB in the end (delta: -84.7 MB). Peak memory consumption was 14.8 MB. Max. memory is 7.1 GB. * RCFGBuilder took 413.66 ms. Allocated memory is still 201.3 MB. Free memory was 179.6 MB in the beginning and 163.6 MB in the end (delta: 15.9 MB). Peak memory consumption was 15.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1972.79 ms. Allocated memory was 201.3 MB in the beginning and 234.9 MB in the end (delta: 33.6 MB). Free memory was 163.6 MB in the beginning and 91.9 MB in the end (delta: 71.7 MB). Peak memory consumption was 105.3 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 26]: 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: 11]: Loop Invariant Derived loop invariant: 0 - ProcedureContractResult [Line: 10]: Procedure Contract for main Derived contract for procedure main: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 45 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 1.5s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.3s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 94 SDtfs, 138 SDslu, 228 SDs, 0 SdLazy, 231 SolverSat, 9 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 48 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=45occurred 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, 4 MinimizatonAttempts, 10 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 45 LocationsWithAnnotation, 45 PreInvPairs, 62 NumberOfFragments, 446 HoareAnnotationTreeSize, 45 FomulaSimplifications, 196 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 45 FomulaSimplificationsInter, 7 FormulaSimplificationTreeSizeReductionInter, 0.2s 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 RESULT: Ultimate proved your program to be correct! Received shutdown request...