/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/loops/sum_array-1.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-267fbe0 [2020-07-18 06:34:28,783 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-18 06:34:28,786 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-18 06:34:28,800 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-18 06:34:28,800 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-18 06:34:28,802 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-18 06:34:28,804 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-18 06:34:28,806 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-18 06:34:28,808 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-18 06:34:28,809 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-18 06:34:28,810 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-18 06:34:28,812 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-18 06:34:28,812 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-18 06:34:28,813 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-18 06:34:28,815 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-18 06:34:28,816 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-18 06:34:28,817 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-18 06:34:28,818 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-18 06:34:28,820 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-18 06:34:28,822 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-18 06:34:28,824 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-18 06:34:28,826 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-18 06:34:28,827 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-18 06:34:28,828 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-18 06:34:28,831 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-18 06:34:28,849 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-18 06:34:28,850 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-18 06:34:28,851 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-18 06:34:28,856 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 06:34:28,869 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-18 06:34:28,869 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-18 06:34:28,872 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-18 06:34:28,873 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-18 06:34:28,873 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-18 06:34:28,873 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-18 06:34:28,873 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-18 06:34:28,873 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-18 06:34:28,874 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-18 06:34:28,874 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-18 06:34:28,874 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-18 06:34:28,874 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-18 06:34:28,874 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-18 06:34:28,874 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-18 06:34:28,875 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-18 06:34:28,875 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-07-18 06:34:28,875 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-18 06:34:28,875 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-18 06:34:28,876 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-18 06:34:28,876 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-18 06:34:28,877 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-07-18 06:34:28,878 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-18 06:34:28,878 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 [2020-07-18 06:34:29,187 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-18 06:34:29,208 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-18 06:34:29,211 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-18 06:34:29,213 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-18 06:34:29,213 INFO L275 PluginConnector]: CDTParser initialized [2020-07-18 06:34:29,214 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops/sum_array-1.c [2020-07-18 06:34:29,293 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a9f5f49d1/50759c7a133d4de8827f4455235d8261/FLAGa4a94b819 [2020-07-18 06:34:29,893 INFO L306 CDTParser]: Found 1 translation units. [2020-07-18 06:34:29,894 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loops/sum_array-1.c [2020-07-18 06:34:29,900 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a9f5f49d1/50759c7a133d4de8827f4455235d8261/FLAGa4a94b819 [2020-07-18 06:34:30,203 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a9f5f49d1/50759c7a133d4de8827f4455235d8261 [2020-07-18 06:34:30,214 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-18 06:34:30,218 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-18 06:34:30,219 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-18 06:34:30,221 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-18 06:34:30,225 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-18 06:34:30,227 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.07 06:34:30" (1/1) ... [2020-07-18 06:34:30,231 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7eb8fb64 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 06:34:30, skipping insertion in model container [2020-07-18 06:34:30,231 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.07 06:34:30" (1/1) ... [2020-07-18 06:34:30,240 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-18 06:34:30,260 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-18 06:34:30,452 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-18 06:34:30,458 INFO L203 MainTranslator]: Completed pre-run [2020-07-18 06:34:30,492 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-18 06:34:30,519 INFO L208 MainTranslator]: Completed translation [2020-07-18 06:34:30,520 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 06:34:30 WrapperNode [2020-07-18 06:34:30,520 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-18 06:34:30,521 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-18 06:34:30,521 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-18 06:34:30,521 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-18 06:34:30,632 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 06:34:30" (1/1) ... [2020-07-18 06:34:30,633 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 06:34:30" (1/1) ... [2020-07-18 06:34:30,654 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 06:34:30" (1/1) ... [2020-07-18 06:34:30,654 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 06:34:30" (1/1) ... [2020-07-18 06:34:30,680 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 06:34:30" (1/1) ... [2020-07-18 06:34:30,687 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 06:34:30" (1/1) ... [2020-07-18 06:34:30,689 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 06:34:30" (1/1) ... [2020-07-18 06:34:30,692 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-18 06:34:30,692 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-18 06:34:30,692 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-18 06:34:30,693 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-18 06:34:30,694 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 06:34:30" (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 06:34:30,765 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-18 06:34:30,766 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-18 06:34:30,766 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-07-18 06:34:30,766 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-18 06:34:30,767 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-18 06:34:30,767 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-18 06:34:30,767 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-07-18 06:34:30,767 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2020-07-18 06:34:30,767 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-18 06:34:30,767 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-18 06:34:30,768 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-18 06:34:30,769 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-18 06:34:30,769 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-18 06:34:30,769 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-18 06:34:30,769 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-18 06:34:31,324 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-18 06:34:31,324 INFO L295 CfgBuilder]: Removed 4 assume(true) statements. [2020-07-18 06:34:31,330 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.07 06:34:31 BoogieIcfgContainer [2020-07-18 06:34:31,330 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-18 06:34:31,332 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-18 06:34:31,332 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-18 06:34:31,336 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-18 06:34:31,336 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.07 06:34:30" (1/3) ... [2020-07-18 06:34:31,337 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5335fd5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.07 06:34:31, skipping insertion in model container [2020-07-18 06:34:31,338 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 06:34:30" (2/3) ... [2020-07-18 06:34:31,338 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5335fd5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.07 06:34:31, skipping insertion in model container [2020-07-18 06:34:31,338 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.07 06:34:31" (3/3) ... [2020-07-18 06:34:31,341 INFO L109 eAbstractionObserver]: Analyzing ICFG sum_array-1.c [2020-07-18 06:34:31,351 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-07-18 06:34:31,360 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-18 06:34:31,372 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-18 06:34:31,395 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-18 06:34:31,395 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-18 06:34:31,395 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-07-18 06:34:31,396 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-18 06:34:31,396 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-18 06:34:31,397 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-18 06:34:31,397 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-18 06:34:31,397 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-18 06:34:31,416 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states. [2020-07-18 06:34:31,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2020-07-18 06:34:31,428 INFO L414 BasicCegarLoop]: Found error trace [2020-07-18 06:34:31,429 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-18 06:34:31,430 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-18 06:34:31,436 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-18 06:34:31,436 INFO L82 PathProgramCache]: Analyzing trace with hash -36140131, now seen corresponding path program 1 times [2020-07-18 06:34:31,445 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-18 06:34:31,446 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [252411126] [2020-07-18 06:34:31,446 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-18 06:34:31,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 06:34:31,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 06:34:31,738 INFO L280 TraceCheckUtils]: 0: Hoare triple {77#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))} #NULL.base, #NULL.offset := 0, 0; {70#true} is VALID [2020-07-18 06:34:31,739 INFO L280 TraceCheckUtils]: 1: Hoare triple {70#true} #valid := #valid[0 := 0]; {70#true} is VALID [2020-07-18 06:34:31,740 INFO L280 TraceCheckUtils]: 2: Hoare triple {70#true} assume 0 < #StackHeapBarrier; {70#true} is VALID [2020-07-18 06:34:31,741 INFO L280 TraceCheckUtils]: 3: Hoare triple {70#true} assume true; {70#true} is VALID [2020-07-18 06:34:31,744 INFO L275 TraceCheckUtils]: 4: Hoare quadruple {70#true} {70#true} #114#return; {70#true} is VALID [2020-07-18 06:34:31,750 INFO L263 TraceCheckUtils]: 0: Hoare triple {70#true} call ULTIMATE.init(); {77#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))} is VALID [2020-07-18 06:34:31,751 INFO L280 TraceCheckUtils]: 1: Hoare triple {77#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))} #NULL.base, #NULL.offset := 0, 0; {70#true} is VALID [2020-07-18 06:34:31,751 INFO L280 TraceCheckUtils]: 2: Hoare triple {70#true} #valid := #valid[0 := 0]; {70#true} is VALID [2020-07-18 06:34:31,751 INFO L280 TraceCheckUtils]: 3: Hoare triple {70#true} assume 0 < #StackHeapBarrier; {70#true} is VALID [2020-07-18 06:34:31,752 INFO L280 TraceCheckUtils]: 4: Hoare triple {70#true} assume true; {70#true} is VALID [2020-07-18 06:34:31,752 INFO L275 TraceCheckUtils]: 5: Hoare quadruple {70#true} {70#true} #114#return; {70#true} is VALID [2020-07-18 06:34:31,753 INFO L263 TraceCheckUtils]: 6: Hoare triple {70#true} call #t~ret12 := main(); {70#true} is VALID [2020-07-18 06:34:31,753 INFO L280 TraceCheckUtils]: 7: Hoare triple {70#true} ~M~0 := #t~nondet0; {70#true} is VALID [2020-07-18 06:34:31,753 INFO L280 TraceCheckUtils]: 8: Hoare triple {70#true} havoc #t~nondet0; {70#true} is VALID [2020-07-18 06:34:31,754 INFO L280 TraceCheckUtils]: 9: Hoare triple {70#true} SUMMARY for call ~#A~0.base, ~#A~0.offset := #Ultimate.allocOnStack(4 * (if ~M~0 % 4294967296 % 4294967296 <= 2147483647 then ~M~0 % 4294967296 % 4294967296 else ~M~0 % 4294967296 % 4294967296 - 4294967296)); srcloc: L15 {70#true} is VALID [2020-07-18 06:34:31,755 INFO L280 TraceCheckUtils]: 10: Hoare triple {70#true} SUMMARY for call ~#B~0.base, ~#B~0.offset := #Ultimate.allocOnStack(4 * (if ~M~0 % 4294967296 % 4294967296 <= 2147483647 then ~M~0 % 4294967296 % 4294967296 else ~M~0 % 4294967296 % 4294967296 - 4294967296)); srcloc: L15-1 {70#true} is VALID [2020-07-18 06:34:31,755 INFO L280 TraceCheckUtils]: 11: Hoare triple {70#true} SUMMARY for call ~#C~0.base, ~#C~0.offset := #Ultimate.allocOnStack(4 * (if ~M~0 % 4294967296 % 4294967296 <= 2147483647 then ~M~0 % 4294967296 % 4294967296 else ~M~0 % 4294967296 % 4294967296 - 4294967296)); srcloc: L15-2 {70#true} is VALID [2020-07-18 06:34:31,756 INFO L280 TraceCheckUtils]: 12: Hoare triple {70#true} havoc ~i~0; {70#true} is VALID [2020-07-18 06:34:31,756 INFO L280 TraceCheckUtils]: 13: Hoare triple {70#true} ~i~0 := 0; {70#true} is VALID [2020-07-18 06:34:31,757 INFO L280 TraceCheckUtils]: 14: Hoare triple {70#true} assume !(~i~0 % 4294967296 < ~M~0 % 4294967296); {70#true} is VALID [2020-07-18 06:34:31,757 INFO L280 TraceCheckUtils]: 15: Hoare triple {70#true} ~i~0 := 0; {70#true} is VALID [2020-07-18 06:34:31,759 INFO L280 TraceCheckUtils]: 16: Hoare triple {70#true} assume !true; {71#false} is VALID [2020-07-18 06:34:31,759 INFO L280 TraceCheckUtils]: 17: Hoare triple {71#false} ~i~0 := 0; {71#false} is VALID [2020-07-18 06:34:31,760 INFO L280 TraceCheckUtils]: 18: Hoare triple {71#false} assume !true; {71#false} is VALID [2020-07-18 06:34:31,760 INFO L280 TraceCheckUtils]: 19: Hoare triple {71#false} ~i~0 := 0; {71#false} is VALID [2020-07-18 06:34:31,761 INFO L280 TraceCheckUtils]: 20: Hoare triple {71#false} assume !!(~i~0 % 4294967296 < ~M~0 % 4294967296); {71#false} is VALID [2020-07-18 06:34:31,761 INFO L280 TraceCheckUtils]: 21: Hoare triple {71#false} SUMMARY for call #t~mem11 := read~int(~#C~0.base, ~#C~0.offset + 4 * (if ~i~0 % 4294967296 % 4294967296 <= 2147483647 then ~i~0 % 4294967296 % 4294967296 else ~i~0 % 4294967296 % 4294967296 - 4294967296), 4); srcloc: L28 {71#false} is VALID [2020-07-18 06:34:31,762 INFO L280 TraceCheckUtils]: 22: Hoare triple {71#false} SUMMARY for call #t~mem9 := read~int(~#A~0.base, ~#A~0.offset + 4 * (if ~i~0 % 4294967296 % 4294967296 <= 2147483647 then ~i~0 % 4294967296 % 4294967296 else ~i~0 % 4294967296 % 4294967296 - 4294967296), 4); srcloc: L28-1 {71#false} is VALID [2020-07-18 06:34:31,762 INFO L280 TraceCheckUtils]: 23: Hoare triple {71#false} SUMMARY for call #t~mem10 := read~int(~#B~0.base, ~#B~0.offset + 4 * (if ~i~0 % 4294967296 % 4294967296 <= 2147483647 then ~i~0 % 4294967296 % 4294967296 else ~i~0 % 4294967296 % 4294967296 - 4294967296), 4); srcloc: L28-2 {71#false} is VALID [2020-07-18 06:34:31,763 INFO L263 TraceCheckUtils]: 24: Hoare triple {71#false} call __VERIFIER_assert((if #t~mem11 == #t~mem9 - #t~mem10 then 1 else 0)); {71#false} is VALID [2020-07-18 06:34:31,763 INFO L280 TraceCheckUtils]: 25: Hoare triple {71#false} ~cond := #in~cond; {71#false} is VALID [2020-07-18 06:34:31,763 INFO L280 TraceCheckUtils]: 26: Hoare triple {71#false} assume 0 == ~cond; {71#false} is VALID [2020-07-18 06:34:31,764 INFO L280 TraceCheckUtils]: 27: Hoare triple {71#false} assume !false; {71#false} is VALID [2020-07-18 06:34:31,770 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 06:34:31,771 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [252411126] [2020-07-18 06:34:31,774 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-18 06:34:31,775 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-18 06:34:31,776 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1633770554] [2020-07-18 06:34:31,788 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 28 [2020-07-18 06:34:31,792 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-18 06:34:31,796 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states. [2020-07-18 06:34:31,865 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 28 edges. 28 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-18 06:34:31,866 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-18 06:34:31,866 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-18 06:34:31,876 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-18 06:34:31,878 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-18 06:34:31,880 INFO L87 Difference]: Start difference. First operand 67 states. Second operand 3 states. [2020-07-18 06:34:32,363 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-18 06:34:32,363 INFO L93 Difference]: Finished difference Result 113 states and 128 transitions. [2020-07-18 06:34:32,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-18 06:34:32,364 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 28 [2020-07-18 06:34:32,364 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-18 06:34:32,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-18 06:34:32,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 128 transitions. [2020-07-18 06:34:32,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-18 06:34:32,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 128 transitions. [2020-07-18 06:34:32,386 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states and 128 transitions. [2020-07-18 06:34:32,581 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 128 edges. 128 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-18 06:34:32,598 INFO L225 Difference]: With dead ends: 113 [2020-07-18 06:34:32,598 INFO L226 Difference]: Without dead ends: 57 [2020-07-18 06:34:32,603 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-18 06:34:32,626 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2020-07-18 06:34:32,697 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 57. [2020-07-18 06:34:32,697 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-18 06:34:32,698 INFO L82 GeneralOperation]: Start isEquivalent. First operand 57 states. Second operand 57 states. [2020-07-18 06:34:32,699 INFO L74 IsIncluded]: Start isIncluded. First operand 57 states. Second operand 57 states. [2020-07-18 06:34:32,699 INFO L87 Difference]: Start difference. First operand 57 states. Second operand 57 states. [2020-07-18 06:34:32,705 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-18 06:34:32,705 INFO L93 Difference]: Finished difference Result 57 states and 60 transitions. [2020-07-18 06:34:32,706 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 60 transitions. [2020-07-18 06:34:32,707 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-18 06:34:32,707 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-18 06:34:32,707 INFO L74 IsIncluded]: Start isIncluded. First operand 57 states. Second operand 57 states. [2020-07-18 06:34:32,708 INFO L87 Difference]: Start difference. First operand 57 states. Second operand 57 states. [2020-07-18 06:34:32,713 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-18 06:34:32,714 INFO L93 Difference]: Finished difference Result 57 states and 60 transitions. [2020-07-18 06:34:32,714 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 60 transitions. [2020-07-18 06:34:32,715 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-18 06:34:32,715 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-18 06:34:32,715 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-18 06:34:32,716 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-18 06:34:32,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 57 states. [2020-07-18 06:34:32,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 60 transitions. [2020-07-18 06:34:32,723 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 60 transitions. Word has length 28 [2020-07-18 06:34:32,723 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-18 06:34:32,723 INFO L479 AbstractCegarLoop]: Abstraction has 57 states and 60 transitions. [2020-07-18 06:34:32,723 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-18 06:34:32,724 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 57 states and 60 transitions. [2020-07-18 06:34:32,806 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 60 edges. 60 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-18 06:34:32,807 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 60 transitions. [2020-07-18 06:34:32,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2020-07-18 06:34:32,809 INFO L414 BasicCegarLoop]: Found error trace [2020-07-18 06:34:32,809 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-18 06:34:32,809 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-18 06:34:32,810 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-18 06:34:32,810 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-18 06:34:32,810 INFO L82 PathProgramCache]: Analyzing trace with hash 1098625525, now seen corresponding path program 1 times [2020-07-18 06:34:32,810 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-18 06:34:32,811 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1909654569] [2020-07-18 06:34:32,812 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-18 06:34:33,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 06:34:33,124 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-18 06:34:33,125 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.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModulePreferences.construct(IpTcStrategyModulePreferences.java:106) 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 06:34:33,139 INFO L168 Benchmark]: Toolchain (without parser) took 2920.05 ms. Allocated memory was 137.9 MB in the beginning and 234.4 MB in the end (delta: 96.5 MB). Free memory was 102.9 MB in the beginning and 129.8 MB in the end (delta: -26.9 MB). Peak memory consumption was 69.5 MB. Max. memory is 7.1 GB. [2020-07-18 06:34:33,142 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 137.9 MB. Free memory was 121.3 MB in the beginning and 121.1 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. [2020-07-18 06:34:33,145 INFO L168 Benchmark]: CACSL2BoogieTranslator took 301.34 ms. Allocated memory is still 137.9 MB. Free memory was 102.7 MB in the beginning and 91.3 MB in the end (delta: 11.4 MB). Peak memory consumption was 11.4 MB. Max. memory is 7.1 GB. [2020-07-18 06:34:33,146 INFO L168 Benchmark]: Boogie Preprocessor took 170.87 ms. Allocated memory was 137.9 MB in the beginning and 202.4 MB in the end (delta: 64.5 MB). Free memory was 91.3 MB in the beginning and 179.7 MB in the end (delta: -88.4 MB). Peak memory consumption was 14.5 MB. Max. memory is 7.1 GB. [2020-07-18 06:34:33,147 INFO L168 Benchmark]: RCFGBuilder took 638.32 ms. Allocated memory is still 202.4 MB. Free memory was 179.7 MB in the beginning and 148.6 MB in the end (delta: 31.1 MB). Peak memory consumption was 31.1 MB. Max. memory is 7.1 GB. [2020-07-18 06:34:33,150 INFO L168 Benchmark]: TraceAbstraction took 1801.70 ms. Allocated memory was 202.4 MB in the beginning and 234.4 MB in the end (delta: 32.0 MB). Free memory was 147.9 MB in the beginning and 129.8 MB in the end (delta: 18.1 MB). Peak memory consumption was 50.1 MB. Max. memory is 7.1 GB. [2020-07-18 06:34:33,168 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 0.23 ms. Allocated memory is still 137.9 MB. Free memory was 121.3 MB in the beginning and 121.1 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 301.34 ms. Allocated memory is still 137.9 MB. Free memory was 102.7 MB in the beginning and 91.3 MB in the end (delta: 11.4 MB). Peak memory consumption was 11.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 170.87 ms. Allocated memory was 137.9 MB in the beginning and 202.4 MB in the end (delta: 64.5 MB). Free memory was 91.3 MB in the beginning and 179.7 MB in the end (delta: -88.4 MB). Peak memory consumption was 14.5 MB. Max. memory is 7.1 GB. * RCFGBuilder took 638.32 ms. Allocated memory is still 202.4 MB. Free memory was 179.7 MB in the beginning and 148.6 MB in the end (delta: 31.1 MB). Peak memory consumption was 31.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1801.70 ms. Allocated memory was 202.4 MB in the beginning and 234.4 MB in the end (delta: 32.0 MB). Free memory was 147.9 MB in the beginning and 129.8 MB in the end (delta: 18.1 MB). Peak memory consumption was 50.1 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...