/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 -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf -i ../../../trunk/examples/svcomp/loops/veris.c_sendmail_tTflag_arr_one_loop.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-267fbe0 [2020-07-18 00:48:09,291 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-18 00:48:09,294 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-18 00:48:09,313 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-18 00:48:09,314 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-18 00:48:09,316 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-18 00:48:09,318 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-18 00:48:09,328 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-18 00:48:09,332 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-18 00:48:09,336 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-18 00:48:09,339 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-18 00:48:09,341 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-18 00:48:09,341 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-18 00:48:09,343 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-18 00:48:09,345 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-18 00:48:09,347 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-18 00:48:09,348 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-18 00:48:09,349 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-18 00:48:09,350 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-18 00:48:09,355 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-18 00:48:09,360 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-18 00:48:09,363 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-18 00:48:09,364 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-18 00:48:09,365 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-18 00:48:09,367 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-18 00:48:09,367 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-18 00:48:09,367 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-18 00:48:09,370 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-18 00:48:09,370 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-18 00:48:09,372 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-18 00:48:09,372 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-18 00:48:09,373 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-18 00:48:09,374 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-18 00:48:09,375 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-18 00:48:09,376 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-18 00:48:09,376 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-18 00:48:09,377 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-18 00:48:09,377 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-18 00:48:09,377 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-18 00:48:09,378 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-18 00:48:09,379 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-18 00:48:09,380 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-07-18 00:48:09,407 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-18 00:48:09,407 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-18 00:48:09,409 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-18 00:48:09,409 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-18 00:48:09,409 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-18 00:48:09,409 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-18 00:48:09,410 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-18 00:48:09,410 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-18 00:48:09,410 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-18 00:48:09,410 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-18 00:48:09,410 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-18 00:48:09,411 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-18 00:48:09,411 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-18 00:48:09,411 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-18 00:48:09,411 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-18 00:48:09,411 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-07-18 00:48:09,412 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-18 00:48:09,412 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-18 00:48:09,412 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-18 00:48:09,412 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-18 00:48:09,412 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-07-18 00:48:09,413 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-18 00:48:09,413 INFO L138 SettingsManager]: * Use separate solver for trace checks=false [2020-07-18 00:48:09,679 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-18 00:48:09,694 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-18 00:48:09,699 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-18 00:48:09,700 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-18 00:48:09,701 INFO L275 PluginConnector]: CDTParser initialized [2020-07-18 00:48:09,701 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops/veris.c_sendmail_tTflag_arr_one_loop.c [2020-07-18 00:48:09,766 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ec0bbdc8d/6908c311affc414e89ed2a10e20461d2/FLAGca345dfc6 [2020-07-18 00:48:10,162 INFO L306 CDTParser]: Found 1 translation units. [2020-07-18 00:48:10,163 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loops/veris.c_sendmail_tTflag_arr_one_loop.c [2020-07-18 00:48:10,169 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ec0bbdc8d/6908c311affc414e89ed2a10e20461d2/FLAGca345dfc6 [2020-07-18 00:48:10,510 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ec0bbdc8d/6908c311affc414e89ed2a10e20461d2 [2020-07-18 00:48:10,520 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-18 00:48:10,523 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-18 00:48:10,524 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-18 00:48:10,524 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-18 00:48:10,529 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-18 00:48:10,531 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.07 12:48:10" (1/1) ... [2020-07-18 00:48:10,534 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@197fa6d9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 12:48:10, skipping insertion in model container [2020-07-18 00:48:10,534 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.07 12:48:10" (1/1) ... [2020-07-18 00:48:10,544 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-18 00:48:10,564 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-18 00:48:10,765 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-18 00:48:10,770 INFO L203 MainTranslator]: Completed pre-run [2020-07-18 00:48:10,796 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-18 00:48:10,817 INFO L208 MainTranslator]: Completed translation [2020-07-18 00:48:10,817 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 12:48:10 WrapperNode [2020-07-18 00:48:10,817 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-18 00:48:10,818 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-18 00:48:10,818 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-18 00:48:10,818 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-18 00:48:10,832 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 12:48:10" (1/1) ... [2020-07-18 00:48:10,833 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 12:48:10" (1/1) ... [2020-07-18 00:48:10,925 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 12:48:10" (1/1) ... [2020-07-18 00:48:10,926 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 12:48:10" (1/1) ... [2020-07-18 00:48:10,947 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 12:48:10" (1/1) ... [2020-07-18 00:48:10,956 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 12:48:10" (1/1) ... [2020-07-18 00:48:10,962 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 12:48:10" (1/1) ... [2020-07-18 00:48:10,969 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-18 00:48:10,970 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-18 00:48:10,970 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-18 00:48:10,970 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-18 00:48:10,971 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 12:48:10" (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 [2020-07-18 00:48:11,023 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-18 00:48:11,024 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-18 00:48:11,024 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-07-18 00:48:11,024 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-18 00:48:11,024 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-18 00:48:11,024 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2020-07-18 00:48:11,024 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-07-18 00:48:11,025 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-18 00:48:11,025 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-18 00:48:11,025 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-18 00:48:11,025 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-18 00:48:11,025 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-18 00:48:11,025 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-18 00:48:11,025 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-18 00:48:11,432 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-18 00:48:11,432 INFO L295 CfgBuilder]: Removed 2 assume(true) statements. [2020-07-18 00:48:11,436 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.07 12:48:11 BoogieIcfgContainer [2020-07-18 00:48:11,437 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-18 00:48:11,438 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-18 00:48:11,438 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-18 00:48:11,441 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-18 00:48:11,441 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.07 12:48:10" (1/3) ... [2020-07-18 00:48:11,442 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2834f951 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.07 12:48:11, skipping insertion in model container [2020-07-18 00:48:11,443 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 12:48:10" (2/3) ... [2020-07-18 00:48:11,443 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2834f951 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.07 12:48:11, skipping insertion in model container [2020-07-18 00:48:11,443 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.07 12:48:11" (3/3) ... [2020-07-18 00:48:11,445 INFO L109 eAbstractionObserver]: Analyzing ICFG veris.c_sendmail_tTflag_arr_one_loop.c [2020-07-18 00:48:11,456 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-07-18 00:48:11,464 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-18 00:48:11,478 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-18 00:48:11,499 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-18 00:48:11,499 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-18 00:48:11,500 INFO L377 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-07-18 00:48:11,500 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-18 00:48:11,500 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-18 00:48:11,500 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-18 00:48:11,500 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-18 00:48:11,500 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-18 00:48:11,516 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states. [2020-07-18 00:48:11,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-07-18 00:48:11,527 INFO L414 BasicCegarLoop]: Found error trace [2020-07-18 00:48:11,528 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-18 00:48:11,528 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-18 00:48:11,533 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-18 00:48:11,533 INFO L82 PathProgramCache]: Analyzing trace with hash 435763839, now seen corresponding path program 1 times [2020-07-18 00:48:11,539 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-18 00:48:11,540 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1200595644] [2020-07-18 00:48:11,540 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-18 00:48:11,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 00:48:11,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 00:48:11,774 INFO L280 TraceCheckUtils]: 0: Hoare triple {61#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))} #NULL.base, #NULL.offset := 0, 0; {54#true} is VALID [2020-07-18 00:48:11,774 INFO L280 TraceCheckUtils]: 1: Hoare triple {54#true} #valid := #valid[0 := 0]; {54#true} is VALID [2020-07-18 00:48:11,775 INFO L280 TraceCheckUtils]: 2: Hoare triple {54#true} assume 0 < #StackHeapBarrier; {54#true} is VALID [2020-07-18 00:48:11,775 INFO L280 TraceCheckUtils]: 3: Hoare triple {54#true} assume true; {54#true} is VALID [2020-07-18 00:48:11,776 INFO L275 TraceCheckUtils]: 4: Hoare quadruple {54#true} {54#true} #76#return; {54#true} is VALID [2020-07-18 00:48:11,779 INFO L263 TraceCheckUtils]: 0: Hoare triple {54#true} call ULTIMATE.init(); {61#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))} is VALID [2020-07-18 00:48:11,780 INFO L280 TraceCheckUtils]: 1: Hoare triple {61#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))} #NULL.base, #NULL.offset := 0, 0; {54#true} is VALID [2020-07-18 00:48:11,780 INFO L280 TraceCheckUtils]: 2: Hoare triple {54#true} #valid := #valid[0 := 0]; {54#true} is VALID [2020-07-18 00:48:11,781 INFO L280 TraceCheckUtils]: 3: Hoare triple {54#true} assume 0 < #StackHeapBarrier; {54#true} is VALID [2020-07-18 00:48:11,781 INFO L280 TraceCheckUtils]: 4: Hoare triple {54#true} assume true; {54#true} is VALID [2020-07-18 00:48:11,782 INFO L275 TraceCheckUtils]: 5: Hoare quadruple {54#true} {54#true} #76#return; {54#true} is VALID [2020-07-18 00:48:11,782 INFO L263 TraceCheckUtils]: 6: Hoare triple {54#true} call #t~ret5 := main(); {54#true} is VALID [2020-07-18 00:48:11,783 INFO L280 TraceCheckUtils]: 7: Hoare triple {54#true} SUMMARY for call ~#in~0.base, ~#in~0.offset := #Ultimate.allocOnStack(11); srcloc: mainENTRY {54#true} is VALID [2020-07-18 00:48:11,783 INFO L280 TraceCheckUtils]: 8: Hoare triple {54#true} havoc ~s~0.base, ~s~0.offset; {54#true} is VALID [2020-07-18 00:48:11,783 INFO L280 TraceCheckUtils]: 9: Hoare triple {54#true} havoc ~c~0; {54#true} is VALID [2020-07-18 00:48:11,784 INFO L280 TraceCheckUtils]: 10: Hoare triple {54#true} havoc ~i~0; {54#true} is VALID [2020-07-18 00:48:11,784 INFO L280 TraceCheckUtils]: 11: Hoare triple {54#true} havoc ~j~0; {54#true} is VALID [2020-07-18 00:48:11,785 INFO L280 TraceCheckUtils]: 12: Hoare triple {54#true} havoc ~idx_in~0; {54#true} is VALID [2020-07-18 00:48:11,785 INFO L280 TraceCheckUtils]: 13: Hoare triple {54#true} ~i~0 := 0; {54#true} is VALID [2020-07-18 00:48:11,786 INFO L280 TraceCheckUtils]: 14: Hoare triple {54#true} assume !(~i~0 % 4294967296 < 10); {54#true} is VALID [2020-07-18 00:48:11,786 INFO L280 TraceCheckUtils]: 15: Hoare triple {54#true} SUMMARY for call write~int(0, ~#in~0.base, 10 + ~#in~0.offset, 1); srcloc: L18-7 {54#true} is VALID [2020-07-18 00:48:11,787 INFO L280 TraceCheckUtils]: 16: Hoare triple {54#true} ~idx_in~0 := 0; {54#true} is VALID [2020-07-18 00:48:11,787 INFO L280 TraceCheckUtils]: 17: Hoare triple {54#true} ~s~0.base, ~s~0.offset := ~#in~0.base, ~#in~0.offset; {54#true} is VALID [2020-07-18 00:48:11,787 INFO L280 TraceCheckUtils]: 18: Hoare triple {54#true} ~i~0 := 0; {54#true} is VALID [2020-07-18 00:48:11,788 INFO L280 TraceCheckUtils]: 19: Hoare triple {54#true} SUMMARY for call #t~mem2 := read~int(~#in~0.base, ~#in~0.offset + ~idx_in~0, 1); srcloc: L26 {54#true} is VALID [2020-07-18 00:48:11,788 INFO L280 TraceCheckUtils]: 20: Hoare triple {54#true} ~c~0 := #t~mem2; {54#true} is VALID [2020-07-18 00:48:11,789 INFO L280 TraceCheckUtils]: 21: Hoare triple {54#true} havoc #t~mem2; {54#true} is VALID [2020-07-18 00:48:11,790 INFO L280 TraceCheckUtils]: 22: Hoare triple {54#true} assume !true; {55#false} is VALID [2020-07-18 00:48:11,791 INFO L263 TraceCheckUtils]: 23: Hoare triple {55#false} call __VERIFIER_assert((if ~i~0 % 4294967296 >= 0 then 1 else 0)); {55#false} is VALID [2020-07-18 00:48:11,791 INFO L280 TraceCheckUtils]: 24: Hoare triple {55#false} ~cond := #in~cond; {55#false} is VALID [2020-07-18 00:48:11,792 INFO L280 TraceCheckUtils]: 25: Hoare triple {55#false} assume 0 == ~cond; {55#false} is VALID [2020-07-18 00:48:11,792 INFO L280 TraceCheckUtils]: 26: Hoare triple {55#false} assume !false; {55#false} is VALID [2020-07-18 00:48:11,796 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-18 00:48:11,799 INFO L192 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-18 00:48:11,801 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1200595644] [2020-07-18 00:48:11,803 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-18 00:48:11,804 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-18 00:48:11,804 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [91082326] [2020-07-18 00:48:11,811 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 27 [2020-07-18 00:48:11,814 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-18 00:48:11,818 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states. [2020-07-18 00:48:11,892 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 27 edges. 27 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-18 00:48:11,893 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-18 00:48:11,893 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-18 00:48:11,903 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-18 00:48:11,904 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-18 00:48:11,907 INFO L87 Difference]: Start difference. First operand 51 states. Second operand 3 states. [2020-07-18 00:48:12,279 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-18 00:48:12,279 INFO L93 Difference]: Finished difference Result 81 states and 88 transitions. [2020-07-18 00:48:12,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-18 00:48:12,280 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 27 [2020-07-18 00:48:12,280 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-18 00:48:12,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-18 00:48:12,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 88 transitions. [2020-07-18 00:48:12,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-18 00:48:12,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 88 transitions. [2020-07-18 00:48:12,300 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states and 88 transitions. [2020-07-18 00:48:12,445 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 88 edges. 88 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-18 00:48:12,473 INFO L225 Difference]: With dead ends: 81 [2020-07-18 00:48:12,474 INFO L226 Difference]: Without dead ends: 42 [2020-07-18 00:48:12,480 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-18 00:48:12,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2020-07-18 00:48:12,570 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42. [2020-07-18 00:48:12,571 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-18 00:48:12,572 INFO L82 GeneralOperation]: Start isEquivalent. First operand 42 states. Second operand 42 states. [2020-07-18 00:48:12,572 INFO L74 IsIncluded]: Start isIncluded. First operand 42 states. Second operand 42 states. [2020-07-18 00:48:12,572 INFO L87 Difference]: Start difference. First operand 42 states. Second operand 42 states. [2020-07-18 00:48:12,589 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-18 00:48:12,589 INFO L93 Difference]: Finished difference Result 42 states and 43 transitions. [2020-07-18 00:48:12,589 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 43 transitions. [2020-07-18 00:48:12,590 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-18 00:48:12,590 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-18 00:48:12,590 INFO L74 IsIncluded]: Start isIncluded. First operand 42 states. Second operand 42 states. [2020-07-18 00:48:12,591 INFO L87 Difference]: Start difference. First operand 42 states. Second operand 42 states. [2020-07-18 00:48:12,599 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-18 00:48:12,600 INFO L93 Difference]: Finished difference Result 42 states and 43 transitions. [2020-07-18 00:48:12,600 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 43 transitions. [2020-07-18 00:48:12,602 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-18 00:48:12,602 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-18 00:48:12,603 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-18 00:48:12,603 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-18 00:48:12,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2020-07-18 00:48:12,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 43 transitions. [2020-07-18 00:48:12,610 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 43 transitions. Word has length 27 [2020-07-18 00:48:12,611 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-18 00:48:12,611 INFO L479 AbstractCegarLoop]: Abstraction has 42 states and 43 transitions. [2020-07-18 00:48:12,611 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-18 00:48:12,611 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 42 states and 43 transitions. [2020-07-18 00:48:12,668 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 43 edges. 43 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-18 00:48:12,668 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 43 transitions. [2020-07-18 00:48:12,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-07-18 00:48:12,670 INFO L414 BasicCegarLoop]: Found error trace [2020-07-18 00:48:12,670 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-18 00:48:12,670 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-18 00:48:12,671 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-18 00:48:12,671 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-18 00:48:12,671 INFO L82 PathProgramCache]: Analyzing trace with hash 424681587, now seen corresponding path program 1 times [2020-07-18 00:48:12,671 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-18 00:48:12,672 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [150963766] [2020-07-18 00:48:12,675 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-18 00:48:12,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 00:48:12,773 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-18 00:48:12,774 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError at de.uni_freiburg.informatik.ultimate.smtinterpol.proof.FixResolutionProof.fix(FixResolutionProof.java:191) at de.uni_freiburg.informatik.ultimate.smtinterpol.proof.ProofTermGenerator.convert(ProofTermGenerator.java:150) at de.uni_freiburg.informatik.ultimate.smtinterpol.smtlib2.SMTInterpol.getProof(SMTInterpol.java:797) at de.uni_freiburg.informatik.ultimate.logic.NoopScript.getInterpolants(NoopScript.java:392) at de.uni_freiburg.informatik.ultimate.logic.NoopScript.getInterpolants(NoopScript.java:386) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.getInterpolants(WrapperScript.java:337) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.getInterpolants(WrapperScript.java:337) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.ManagedScript.getInterpolants(ManagedScript.java:191) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.NestedInterpolantsBuilder.computeCraigInterpolants(NestedInterpolantsBuilder.java:285) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.NestedInterpolantsBuilder.(NestedInterpolantsBuilder.java:166) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.computeInterpolantsRecursive(InterpolatingTraceCheckCraig.java:337) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.computeInterpolants(InterpolatingTraceCheckCraig.java:239) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.(InterpolatingTraceCheckCraig.java:108) at de.uni_freiburg.informatik.ultimate.lib.acceleratedinterpolation.Interpolator.generateInterpolantsCraigNested(Interpolator.java:146) at de.uni_freiburg.informatik.ultimate.lib.acceleratedinterpolation.Interpolator.generateInterpolants(Interpolator.java:102) at de.uni_freiburg.informatik.ultimate.lib.acceleratedinterpolation.AcceleratedInterpolation.acceleratedInterpolationCore(AcceleratedInterpolation.java:283) at de.uni_freiburg.informatik.ultimate.lib.acceleratedinterpolation.AcceleratedInterpolation.(AcceleratedInterpolation.java:191) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModulePreferences.construct(IpTcStrategyModulePreferences.java:144) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.isCorrect(IpTcStrategyModuleBase.java:57) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.checkFeasibility(AutomatonFreeRefinementEngine.java:242) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:166) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:75) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:508) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:436) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:370) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopResult.iterate(CegarLoopResult.java:142) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterateNew(TraceAbstractionStarter.java:334) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:175) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:127) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:120) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:317) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2020-07-18 00:48:12,782 INFO L168 Benchmark]: Toolchain (without parser) took 2259.07 ms. Allocated memory was 139.5 MB in the beginning and 234.9 MB in the end (delta: 95.4 MB). Free memory was 103.6 MB in the beginning and 172.4 MB in the end (delta: -68.7 MB). Peak memory consumption was 26.7 MB. Max. memory is 7.1 GB. [2020-07-18 00:48:12,783 INFO L168 Benchmark]: CDTParser took 0.85 ms. Allocated memory is still 139.5 MB. Free memory was 121.6 MB in the beginning and 121.4 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-07-18 00:48:12,784 INFO L168 Benchmark]: CACSL2BoogieTranslator took 294.00 ms. Allocated memory is still 139.5 MB. Free memory was 103.2 MB in the beginning and 92.8 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 7.1 GB. [2020-07-18 00:48:12,787 INFO L168 Benchmark]: Boogie Preprocessor took 150.78 ms. Allocated memory was 139.5 MB in the beginning and 204.5 MB in the end (delta: 65.0 MB). Free memory was 92.8 MB in the beginning and 182.7 MB in the end (delta: -89.9 MB). Peak memory consumption was 14.7 MB. Max. memory is 7.1 GB. [2020-07-18 00:48:12,788 INFO L168 Benchmark]: RCFGBuilder took 467.28 ms. Allocated memory is still 204.5 MB. Free memory was 182.7 MB in the beginning and 158.7 MB in the end (delta: 24.0 MB). Peak memory consumption was 24.0 MB. Max. memory is 7.1 GB. [2020-07-18 00:48:12,790 INFO L168 Benchmark]: TraceAbstraction took 1340.08 ms. Allocated memory was 204.5 MB in the beginning and 234.9 MB in the end (delta: 30.4 MB). Free memory was 158.7 MB in the beginning and 172.4 MB in the end (delta: -13.7 MB). Peak memory consumption was 16.7 MB. Max. memory is 7.1 GB. [2020-07-18 00:48:12,800 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 0.85 ms. Allocated memory is still 139.5 MB. Free memory was 121.6 MB in the beginning and 121.4 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 294.00 ms. Allocated memory is still 139.5 MB. Free memory was 103.2 MB in the beginning and 92.8 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 150.78 ms. Allocated memory was 139.5 MB in the beginning and 204.5 MB in the end (delta: 65.0 MB). Free memory was 92.8 MB in the beginning and 182.7 MB in the end (delta: -89.9 MB). Peak memory consumption was 14.7 MB. Max. memory is 7.1 GB. * RCFGBuilder took 467.28 ms. Allocated memory is still 204.5 MB. Free memory was 182.7 MB in the beginning and 158.7 MB in the end (delta: 24.0 MB). Peak memory consumption was 24.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1340.08 ms. Allocated memory was 204.5 MB in the beginning and 234.9 MB in the end (delta: 30.4 MB). Free memory was 158.7 MB in the beginning and 172.4 MB in the end (delta: -13.7 MB). Peak memory consumption was 16.7 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: null de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: null: de.uni_freiburg.informatik.ultimate.smtinterpol.proof.FixResolutionProof.fix(FixResolutionProof.java:191) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...