/usr/bin/java -ea -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.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/ldv-regression/structure_assignment.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-8fc6572 [2020-07-11 01:05:39,325 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-11 01:05:39,329 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-11 01:05:39,349 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-11 01:05:39,350 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-11 01:05:39,351 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-11 01:05:39,353 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-11 01:05:39,365 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-11 01:05:39,369 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-11 01:05:39,372 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-11 01:05:39,374 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-11 01:05:39,376 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-11 01:05:39,376 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-11 01:05:39,379 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-11 01:05:39,382 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-11 01:05:39,384 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-11 01:05:39,386 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-11 01:05:39,388 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-11 01:05:39,389 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-11 01:05:39,394 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-11 01:05:39,400 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-11 01:05:39,404 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-11 01:05:39,405 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-11 01:05:39,406 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-11 01:05:39,409 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-11 01:05:39,409 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-11 01:05:39,409 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-11 01:05:39,412 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-11 01:05:39,413 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-11 01:05:39,414 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-11 01:05:39,414 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-11 01:05:39,415 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-11 01:05:39,416 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-11 01:05:39,417 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-11 01:05:39,418 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-11 01:05:39,419 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-11 01:05:39,419 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-11 01:05:39,419 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-11 01:05:39,420 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-11 01:05:39,420 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-11 01:05:39,422 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-11 01:05:39,423 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-07-11 01:05:39,452 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-11 01:05:39,452 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-11 01:05:39,454 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-11 01:05:39,454 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-11 01:05:39,455 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-11 01:05:39,455 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-11 01:05:39,455 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-11 01:05:39,457 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-11 01:05:39,458 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-11 01:05:39,458 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-11 01:05:39,458 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-11 01:05:39,458 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-11 01:05:39,458 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-11 01:05:39,458 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-11 01:05:39,459 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-11 01:05:39,459 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-07-11 01:05:39,459 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-11 01:05:39,459 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-11 01:05:39,460 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-11 01:05:39,460 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-11 01:05:39,460 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-07-11 01:05:39,464 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-11 01:05:39,465 INFO L138 SettingsManager]: * Use separate solver for trace checks=false 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 [2020-07-11 01:05:39,790 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-11 01:05:39,805 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-11 01:05:39,809 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-11 01:05:39,811 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-11 01:05:39,812 INFO L275 PluginConnector]: CDTParser initialized [2020-07-11 01:05:39,812 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-regression/structure_assignment.i [2020-07-11 01:05:39,881 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6e93073d6/29c38069a6dd4fb6a0af71b171683989/FLAG223104858 [2020-07-11 01:05:40,320 INFO L306 CDTParser]: Found 1 translation units. [2020-07-11 01:05:40,320 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-regression/structure_assignment.i [2020-07-11 01:05:40,327 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6e93073d6/29c38069a6dd4fb6a0af71b171683989/FLAG223104858 [2020-07-11 01:05:40,717 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6e93073d6/29c38069a6dd4fb6a0af71b171683989 [2020-07-11 01:05:40,732 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-11 01:05:40,734 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-11 01:05:40,740 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-11 01:05:40,741 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-11 01:05:40,745 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-11 01:05:40,747 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.07 01:05:40" (1/1) ... [2020-07-11 01:05:40,750 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4f15f77b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.07 01:05:40, skipping insertion in model container [2020-07-11 01:05:40,751 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.07 01:05:40" (1/1) ... [2020-07-11 01:05:40,760 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-11 01:05:40,780 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-11 01:05:40,980 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-11 01:05:40,986 INFO L203 MainTranslator]: Completed pre-run [2020-07-11 01:05:41,009 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-11 01:05:41,039 INFO L208 MainTranslator]: Completed translation [2020-07-11 01:05:41,039 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.07 01:05:41 WrapperNode [2020-07-11 01:05:41,039 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-11 01:05:41,040 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-11 01:05:41,040 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-11 01:05:41,041 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-11 01:05:41,156 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.07 01:05:41" (1/1) ... [2020-07-11 01:05:41,156 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.07 01:05:41" (1/1) ... [2020-07-11 01:05:41,169 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.07 01:05:41" (1/1) ... [2020-07-11 01:05:41,169 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.07 01:05:41" (1/1) ... [2020-07-11 01:05:41,192 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.07 01:05:41" (1/1) ... [2020-07-11 01:05:41,194 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.07 01:05:41" (1/1) ... [2020-07-11 01:05:41,201 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.07 01:05:41" (1/1) ... [2020-07-11 01:05:41,203 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-11 01:05:41,204 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-11 01:05:41,205 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-11 01:05:41,205 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-11 01:05:41,208 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.07 01:05:41" (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 [2020-07-11 01:05:41,271 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-11 01:05:41,271 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-11 01:05:41,272 INFO L138 BoogieDeclarations]: Found implementation of procedure __blast_assert [2020-07-11 01:05:41,272 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-11 01:05:41,272 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-11 01:05:41,272 INFO L130 BoogieDeclarations]: Found specification of procedure __blast_assert [2020-07-11 01:05:41,272 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-11 01:05:41,272 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-11 01:05:41,273 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-07-11 01:05:41,273 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-11 01:05:41,273 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-11 01:05:41,273 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-11 01:05:41,273 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-11 01:05:41,273 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-11 01:05:41,570 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-11 01:05:41,571 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-07-11 01:05:41,576 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.07 01:05:41 BoogieIcfgContainer [2020-07-11 01:05:41,576 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-11 01:05:41,579 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-11 01:05:41,579 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-11 01:05:41,584 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-11 01:05:41,584 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.07 01:05:40" (1/3) ... [2020-07-11 01:05:41,585 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a9029fd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.07 01:05:41, skipping insertion in model container [2020-07-11 01:05:41,585 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.07 01:05:41" (2/3) ... [2020-07-11 01:05:41,587 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a9029fd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.07 01:05:41, skipping insertion in model container [2020-07-11 01:05:41,588 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.07 01:05:41" (3/3) ... [2020-07-11 01:05:41,590 INFO L109 eAbstractionObserver]: Analyzing ICFG structure_assignment.i [2020-07-11 01:05:41,605 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-07-11 01:05:41,614 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-11 01:05:41,642 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-11 01:05:41,697 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-11 01:05:41,697 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-11 01:05:41,697 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-07-11 01:05:41,697 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-11 01:05:41,698 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-11 01:05:41,698 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-11 01:05:41,698 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-11 01:05:41,700 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-11 01:05:41,725 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states. [2020-07-11 01:05:41,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-07-11 01:05:41,744 INFO L414 BasicCegarLoop]: Found error trace [2020-07-11 01:05:41,745 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] [2020-07-11 01:05:41,746 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-11 01:05:41,751 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-11 01:05:41,752 INFO L82 PathProgramCache]: Analyzing trace with hash 1759541196, now seen corresponding path program 1 times [2020-07-11 01:05:41,759 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-11 01:05:41,759 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [226767213] [2020-07-11 01:05:41,760 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-11 01:05:41,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-11 01:05:42,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-11 01:05:42,159 INFO L280 TraceCheckUtils]: 0: Hoare triple {48#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))} #NULL.base, #NULL.offset := 0, 0; {37#true} is VALID [2020-07-11 01:05:42,161 INFO L280 TraceCheckUtils]: 1: Hoare triple {37#true} #valid := #valid[0 := 0]; {37#true} is VALID [2020-07-11 01:05:42,162 INFO L280 TraceCheckUtils]: 2: Hoare triple {37#true} assume 0 < #StackHeapBarrier; {37#true} is VALID [2020-07-11 01:05:42,163 INFO L280 TraceCheckUtils]: 3: Hoare triple {37#true} assume true; {37#true} is VALID [2020-07-11 01:05:42,163 INFO L275 TraceCheckUtils]: 4: Hoare quadruple {37#true} {37#true} #36#return; {37#true} is VALID [2020-07-11 01:05:42,167 INFO L263 TraceCheckUtils]: 0: Hoare triple {37#true} call ULTIMATE.init(); {48#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))} is VALID [2020-07-11 01:05:42,168 INFO L280 TraceCheckUtils]: 1: Hoare triple {48#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))} #NULL.base, #NULL.offset := 0, 0; {37#true} is VALID [2020-07-11 01:05:42,169 INFO L280 TraceCheckUtils]: 2: Hoare triple {37#true} #valid := #valid[0 := 0]; {37#true} is VALID [2020-07-11 01:05:42,169 INFO L280 TraceCheckUtils]: 3: Hoare triple {37#true} assume 0 < #StackHeapBarrier; {37#true} is VALID [2020-07-11 01:05:42,170 INFO L280 TraceCheckUtils]: 4: Hoare triple {37#true} assume true; {37#true} is VALID [2020-07-11 01:05:42,170 INFO L275 TraceCheckUtils]: 5: Hoare quadruple {37#true} {37#true} #36#return; {37#true} is VALID [2020-07-11 01:05:42,170 INFO L263 TraceCheckUtils]: 6: Hoare triple {37#true} call #t~ret3 := main(); {37#true} is VALID [2020-07-11 01:05:42,171 INFO L280 TraceCheckUtils]: 7: Hoare triple {37#true} SUMMARY for call ~#good~0.base, ~#good~0.offset := #Ultimate.allocOnStack(8); srcloc: mainENTRY {37#true} is VALID [2020-07-11 01:05:42,171 INFO L280 TraceCheckUtils]: 8: Hoare triple {37#true} SUMMARY for call write~init~int(1, ~#good~0.base, ~#good~0.offset, 4); srcloc: L21 {37#true} is VALID [2020-07-11 01:05:42,175 INFO L280 TraceCheckUtils]: 9: Hoare triple {37#true} SUMMARY for call write~init~int(2, ~#good~0.base, 4 + ~#good~0.offset, 4); srcloc: L21-1 {44#(= (select (select |#memory_int| |main_~#good~0.base|) (+ |main_~#good~0.offset| 4)) 2)} is VALID [2020-07-11 01:05:42,177 INFO L280 TraceCheckUtils]: 10: Hoare triple {44#(= (select (select |#memory_int| |main_~#good~0.base|) (+ |main_~#good~0.offset| 4)) 2)} SUMMARY for call ~#bad~0.base, ~#bad~0.offset := #Ultimate.allocOnStack(8); srcloc: L21-2 {44#(= (select (select |#memory_int| |main_~#good~0.base|) (+ |main_~#good~0.offset| 4)) 2)} is VALID [2020-07-11 01:05:42,178 INFO L280 TraceCheckUtils]: 11: Hoare triple {44#(= (select (select |#memory_int| |main_~#good~0.base|) (+ |main_~#good~0.offset| 4)) 2)} SUMMARY for call #t~mem0 := read~int(~#good~0.base, ~#good~0.offset, 4); srcloc: L22 {44#(= (select (select |#memory_int| |main_~#good~0.base|) (+ |main_~#good~0.offset| 4)) 2)} is VALID [2020-07-11 01:05:42,181 INFO L280 TraceCheckUtils]: 12: Hoare triple {44#(= (select (select |#memory_int| |main_~#good~0.base|) (+ |main_~#good~0.offset| 4)) 2)} SUMMARY for call #t~mem1 := read~int(~#good~0.base, 4 + ~#good~0.offset, 4); srcloc: L23 {45#(= 2 |main_#t~mem1|)} is VALID [2020-07-11 01:05:42,184 INFO L280 TraceCheckUtils]: 13: Hoare triple {45#(= 2 |main_#t~mem1|)} SUMMARY for call write~int(#t~mem0, ~#bad~0.base, ~#bad~0.offset, 4); srcloc: L23-1 {45#(= 2 |main_#t~mem1|)} is VALID [2020-07-11 01:05:42,187 INFO L280 TraceCheckUtils]: 14: Hoare triple {45#(= 2 |main_#t~mem1|)} SUMMARY for call write~int(#t~mem1, ~#bad~0.base, 4 + ~#bad~0.offset, 4); srcloc: L23-2 {46#(= 2 (select (select |#memory_int| |main_~#bad~0.base|) (+ |main_~#bad~0.offset| 4)))} is VALID [2020-07-11 01:05:42,189 INFO L280 TraceCheckUtils]: 15: Hoare triple {46#(= 2 (select (select |#memory_int| |main_~#bad~0.base|) (+ |main_~#bad~0.offset| 4)))} havoc #t~mem1; {46#(= 2 (select (select |#memory_int| |main_~#bad~0.base|) (+ |main_~#bad~0.offset| 4)))} is VALID [2020-07-11 01:05:42,191 INFO L280 TraceCheckUtils]: 16: Hoare triple {46#(= 2 (select (select |#memory_int| |main_~#bad~0.base|) (+ |main_~#bad~0.offset| 4)))} havoc #t~mem0; {46#(= 2 (select (select |#memory_int| |main_~#bad~0.base|) (+ |main_~#bad~0.offset| 4)))} is VALID [2020-07-11 01:05:42,193 INFO L280 TraceCheckUtils]: 17: Hoare triple {46#(= 2 (select (select |#memory_int| |main_~#bad~0.base|) (+ |main_~#bad~0.offset| 4)))} SUMMARY for call #t~mem2 := read~int(~#bad~0.base, 4 + ~#bad~0.offset, 4); srcloc: L24 {47#(= 2 |main_#t~mem2|)} is VALID [2020-07-11 01:05:42,196 INFO L280 TraceCheckUtils]: 18: Hoare triple {47#(= 2 |main_#t~mem2|)} assume !(2 == #t~mem2); {38#false} is VALID [2020-07-11 01:05:42,197 INFO L263 TraceCheckUtils]: 19: Hoare triple {38#false} call __blast_assert(); {38#false} is VALID [2020-07-11 01:05:42,197 INFO L280 TraceCheckUtils]: 20: Hoare triple {38#false} assume !false; {38#false} is VALID [2020-07-11 01:05:42,206 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-11 01:05:42,207 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [226767213] [2020-07-11 01:05:42,210 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-11 01:05:42,210 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-07-11 01:05:42,212 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [493375095] [2020-07-11 01:05:42,218 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 21 [2020-07-11 01:05:42,221 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-11 01:05:42,225 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 7 states. [2020-07-11 01:05:42,286 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 21 edges. 21 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-11 01:05:42,287 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-11 01:05:42,287 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-11 01:05:42,297 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-11 01:05:42,298 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-07-11 01:05:42,300 INFO L87 Difference]: Start difference. First operand 34 states. Second operand 7 states. [2020-07-11 01:05:42,837 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-11 01:05:42,838 INFO L93 Difference]: Finished difference Result 44 states and 43 transitions. [2020-07-11 01:05:42,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-07-11 01:05:42,838 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 21 [2020-07-11 01:05:42,838 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-11 01:05:42,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2020-07-11 01:05:42,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 43 transitions. [2020-07-11 01:05:42,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2020-07-11 01:05:42,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 43 transitions. [2020-07-11 01:05:42,863 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 9 states and 43 transitions. [2020-07-11 01:05:42,931 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 43 edges. 43 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-11 01:05:42,939 INFO L225 Difference]: With dead ends: 44 [2020-07-11 01:05:42,939 INFO L226 Difference]: Without dead ends: 0 [2020-07-11 01:05:42,944 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-07-11 01:05:42,967 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-11 01:05:42,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-11 01:05:42,975 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-11 01:05:42,976 INFO L82 GeneralOperation]: Start isEquivalent. First operand 0 states. Second operand 0 states. [2020-07-11 01:05:42,976 INFO L74 IsIncluded]: Start isIncluded. First operand 0 states. Second operand 0 states. [2020-07-11 01:05:42,977 INFO L87 Difference]: Start difference. First operand 0 states. Second operand 0 states. [2020-07-11 01:05:42,977 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-11 01:05:42,978 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2020-07-11 01:05:42,978 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-11 01:05:42,978 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-11 01:05:42,978 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-11 01:05:42,979 INFO L74 IsIncluded]: Start isIncluded. First operand 0 states. Second operand 0 states. [2020-07-11 01:05:42,979 INFO L87 Difference]: Start difference. First operand 0 states. Second operand 0 states. [2020-07-11 01:05:42,979 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-11 01:05:42,980 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2020-07-11 01:05:42,980 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-11 01:05:42,980 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-11 01:05:42,980 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-11 01:05:42,981 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-11 01:05:42,981 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-11 01:05:42,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-11 01:05:42,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-11 01:05:42,984 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 21 [2020-07-11 01:05:42,984 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-11 01:05:42,984 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-11 01:05:42,984 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-11 01:05:42,984 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 0 states and 0 transitions. [2020-07-11 01:05:42,985 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 0 edges. 0 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-11 01:05:42,985 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-11 01:05:42,985 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-11 01:05:42,986 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-11 01:05:42,988 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-11 01:05:43,181 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-07-11 01:05:43,182 INFO L271 CegarLoopResult]: At program point L-1-1(line -1) the Hoare annotation is: true [2020-07-11 01:05:43,182 INFO L271 CegarLoopResult]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2020-07-11 01:05:43,182 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)|)) [2020-07-11 01:05:43,182 INFO L271 CegarLoopResult]: At program point ULTIMATE.initEXIT(line -1) the Hoare annotation is: true [2020-07-11 01:05:43,182 INFO L271 CegarLoopResult]: At program point __blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 9) the Hoare annotation is: true [2020-07-11 01:05:43,183 INFO L271 CegarLoopResult]: At program point __blast_assertEXIT(lines 7 10) the Hoare annotation is: true [2020-07-11 01:05:43,183 INFO L271 CegarLoopResult]: At program point __blast_assertFINAL(lines 7 10) the Hoare annotation is: true [2020-07-11 01:05:43,183 INFO L271 CegarLoopResult]: At program point __blast_assertENTRY(lines 7 10) the Hoare annotation is: true [2020-07-11 01:05:43,183 INFO L271 CegarLoopResult]: At program point ULTIMATE.startEXIT(line -1) the Hoare annotation is: true [2020-07-11 01:05:43,183 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-07-11 01:05:43,184 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-07-11 01:05:43,184 INFO L271 CegarLoopResult]: At program point ULTIMATE.startFINAL(line -1) the Hoare annotation is: true [2020-07-11 01:05:43,184 INFO L264 CegarLoopResult]: At program point L25(line 25) the Hoare annotation is: (= 2 (select (select |#memory_int| |main_~#bad~0.base|) (+ |main_~#bad~0.offset| 4))) [2020-07-11 01:05:43,184 INFO L271 CegarLoopResult]: At program point mainEXIT(lines 19 26) the Hoare annotation is: true [2020-07-11 01:05:43,184 INFO L264 CegarLoopResult]: At program point L23(line 23) the Hoare annotation is: (= (select (select |#memory_int| |main_~#good~0.base|) (+ |main_~#good~0.offset| 4)) 2) [2020-07-11 01:05:43,185 INFO L264 CegarLoopResult]: At program point L23-1(line 23) the Hoare annotation is: (and (= 2 |main_#t~mem1|) (= (select (select |#memory_int| |main_~#good~0.base|) (+ |main_~#good~0.offset| 4)) 2)) [2020-07-11 01:05:43,185 INFO L271 CegarLoopResult]: At program point L21(line 21) the Hoare annotation is: true [2020-07-11 01:05:43,185 INFO L264 CegarLoopResult]: At program point L23-2(line 23) the Hoare annotation is: (= 2 |main_#t~mem1|) [2020-07-11 01:05:43,185 INFO L271 CegarLoopResult]: At program point L21-1(line 21) the Hoare annotation is: true [2020-07-11 01:05:43,186 INFO L264 CegarLoopResult]: At program point L23-3(line 23) the Hoare annotation is: (and (= 2 (select (select |#memory_int| |main_~#bad~0.base|) (+ |main_~#bad~0.offset| 4))) (= 2 |main_#t~mem1|)) [2020-07-11 01:05:43,186 INFO L264 CegarLoopResult]: At program point L21-2(line 21) the Hoare annotation is: (= (select (select |#memory_int| |main_~#good~0.base|) (+ |main_~#good~0.offset| 4)) 2) [2020-07-11 01:05:43,186 INFO L264 CegarLoopResult]: At program point L23-4(line 23) the Hoare annotation is: (= 2 (select (select |#memory_int| |main_~#bad~0.base|) (+ |main_~#bad~0.offset| 4))) [2020-07-11 01:05:43,186 INFO L264 CegarLoopResult]: At program point L21-3(line 21) the Hoare annotation is: (= 2 (select (select |#memory_int| |main_~#bad~0.base|) (+ |main_~#bad~0.offset| 4))) [2020-07-11 01:05:43,186 INFO L264 CegarLoopResult]: At program point L21-4(line 21) the Hoare annotation is: (= 2 (select (select |#memory_int| |main_~#bad~0.base|) (+ |main_~#bad~0.offset| 4))) [2020-07-11 01:05:43,187 INFO L271 CegarLoopResult]: At program point mainFINAL(lines 19 26) the Hoare annotation is: true [2020-07-11 01:05:43,187 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 19 26) the Hoare annotation is: (= |#valid| |old(#valid)|) [2020-07-11 01:05:43,187 INFO L264 CegarLoopResult]: At program point L24(line 24) the Hoare annotation is: (= 2 (select (select |#memory_int| |main_~#bad~0.base|) (+ |main_~#bad~0.offset| 4))) [2020-07-11 01:05:43,187 INFO L264 CegarLoopResult]: At program point L24-1(line 24) the Hoare annotation is: (and (= 2 (select (select |#memory_int| |main_~#bad~0.base|) (+ |main_~#bad~0.offset| 4))) (= 2 |main_#t~mem2|)) [2020-07-11 01:05:43,187 INFO L264 CegarLoopResult]: At program point L22(line 22) the Hoare annotation is: (= (select (select |#memory_int| |main_~#good~0.base|) (+ |main_~#good~0.offset| 4)) 2) [2020-07-11 01:05:43,188 INFO L264 CegarLoopResult]: At program point L24-3(line 24) the Hoare annotation is: false [2020-07-11 01:05:43,188 INFO L264 CegarLoopResult]: At program point L22-1(line 22) the Hoare annotation is: (= 2 (select (select |#memory_int| |main_~#bad~0.base|) (+ |main_~#bad~0.offset| 4))) [2020-07-11 01:05:43,188 INFO L264 CegarLoopResult]: At program point L24-4(line 24) the Hoare annotation is: (and (= 2 (select (select |#memory_int| |main_~#bad~0.base|) (+ |main_~#bad~0.offset| 4))) (= 2 |main_#t~mem2|)) [2020-07-11 01:05:43,188 INFO L264 CegarLoopResult]: At program point L22-2(line 22) the Hoare annotation is: (= 2 (select (select |#memory_int| |main_~#bad~0.base|) (+ |main_~#bad~0.offset| 4))) [2020-07-11 01:05:43,203 INFO L163 areAnnotationChecker]: CFG has 34 edges. 34 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. 0 times interpolants missing. [2020-07-11 01:05:43,213 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.07 01:05:43 BoogieIcfgContainer [2020-07-11 01:05:43,213 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-11 01:05:43,217 INFO L168 Benchmark]: Toolchain (without parser) took 2482.76 ms. Allocated memory was 145.2 MB in the beginning and 234.4 MB in the end (delta: 89.1 MB). Free memory was 104.0 MB in the beginning and 155.2 MB in the end (delta: -51.2 MB). Peak memory consumption was 37.9 MB. Max. memory is 7.1 GB. [2020-07-11 01:05:43,218 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 145.2 MB. Free memory is still 121.5 MB. There was no memory consumed. Max. memory is 7.1 GB. [2020-07-11 01:05:43,219 INFO L168 Benchmark]: CACSL2BoogieTranslator took 299.48 ms. Allocated memory is still 145.2 MB. Free memory was 103.5 MB in the beginning and 93.3 MB in the end (delta: 10.3 MB). Peak memory consumption was 10.3 MB. Max. memory is 7.1 GB. [2020-07-11 01:05:43,220 INFO L168 Benchmark]: Boogie Preprocessor took 163.41 ms. Allocated memory was 145.2 MB in the beginning and 203.9 MB in the end (delta: 58.7 MB). Free memory was 93.3 MB in the beginning and 181.3 MB in the end (delta: -88.1 MB). Peak memory consumption was 10.1 MB. Max. memory is 7.1 GB. [2020-07-11 01:05:43,221 INFO L168 Benchmark]: RCFGBuilder took 372.52 ms. Allocated memory is still 203.9 MB. Free memory was 181.3 MB in the beginning and 163.4 MB in the end (delta: 17.9 MB). Peak memory consumption was 17.9 MB. Max. memory is 7.1 GB. [2020-07-11 01:05:43,222 INFO L168 Benchmark]: TraceAbstraction took 1634.52 ms. Allocated memory was 203.9 MB in the beginning and 234.4 MB in the end (delta: 30.4 MB). Free memory was 162.4 MB in the beginning and 155.2 MB in the end (delta: 7.3 MB). Peak memory consumption was 37.7 MB. Max. memory is 7.1 GB. [2020-07-11 01:05:43,225 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - AssertionsEnabledResult: Assertions are enabled Assertions are enabled - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 145.2 MB. Free memory is still 121.5 MB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 299.48 ms. Allocated memory is still 145.2 MB. Free memory was 103.5 MB in the beginning and 93.3 MB in the end (delta: 10.3 MB). Peak memory consumption was 10.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 163.41 ms. Allocated memory was 145.2 MB in the beginning and 203.9 MB in the end (delta: 58.7 MB). Free memory was 93.3 MB in the beginning and 181.3 MB in the end (delta: -88.1 MB). Peak memory consumption was 10.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 372.52 ms. Allocated memory is still 203.9 MB. Free memory was 181.3 MB in the beginning and 163.4 MB in the end (delta: 17.9 MB). Peak memory consumption was 17.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1634.52 ms. Allocated memory was 203.9 MB in the beginning and 234.4 MB in the end (delta: 30.4 MB). Free memory was 162.4 MB in the beginning and 155.2 MB in the end (delta: 7.3 MB). Peak memory consumption was 37.7 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 9]: 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 - ProcedureContractResult [Line: 7]: Procedure Contract for __blast_assert Derived contract for procedure __blast_assert: 1 - ProcedureContractResult [Line: 19]: Procedure Contract for main Derived contract for procedure main: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 34 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 1.2s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 20 SDtfs, 10 SDslu, 68 SDs, 0 SdLazy, 59 SolverSat, 1 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=34occurred 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, 34 LocationsWithAnnotation, 34 PreInvPairs, 44 NumberOfFragments, 175 HoareAnnotationTreeSize, 34 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 34 FomulaSimplificationsInter, 7 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 21 NumberOfCodeBlocks, 21 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 20 ConstructedInterpolants, 0 QuantifiedInterpolants, 1660 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...