/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/array-fpi/indp4f.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-46f3038-m [2020-07-08 23:35:27,086 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-08 23:35:27,089 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-08 23:35:27,103 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-08 23:35:27,103 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-08 23:35:27,105 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-08 23:35:27,106 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-08 23:35:27,109 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-08 23:35:27,111 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-08 23:35:27,112 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-08 23:35:27,114 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-08 23:35:27,115 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-08 23:35:27,115 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-08 23:35:27,117 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-08 23:35:27,118 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-08 23:35:27,120 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-08 23:35:27,121 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-08 23:35:27,122 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-08 23:35:27,125 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-08 23:35:27,128 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-08 23:35:27,130 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-08 23:35:27,132 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-08 23:35:27,133 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-08 23:35:27,135 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-08 23:35:27,138 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-08 23:35:27,138 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-08 23:35:27,139 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-08 23:35:27,140 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-08 23:35:27,141 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-08 23:35:27,142 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-08 23:35:27,142 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-08 23:35:27,143 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-08 23:35:27,144 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-08 23:35:27,146 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-08 23:35:27,147 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-08 23:35:27,148 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-08 23:35:27,149 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-08 23:35:27,149 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-08 23:35:27,149 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-08 23:35:27,151 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-08 23:35:27,152 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-08 23:35:27,153 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-07-08 23:35:27,165 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-08 23:35:27,165 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-08 23:35:27,167 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-08 23:35:27,167 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-08 23:35:27,167 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-08 23:35:27,168 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-08 23:35:27,168 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-08 23:35:27,168 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-08 23:35:27,168 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-08 23:35:27,168 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-08 23:35:27,169 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-08 23:35:27,169 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-08 23:35:27,169 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-08 23:35:27,169 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-08 23:35:27,170 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-08 23:35:27,170 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-07-08 23:35:27,170 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-08 23:35:27,170 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-08 23:35:27,171 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-08 23:35:27,171 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-08 23:35:27,171 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-07-08 23:35:27,171 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-08 23:35:27,171 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 [2020-07-08 23:35:27,505 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-08 23:35:27,521 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-08 23:35:27,526 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-08 23:35:27,528 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-08 23:35:27,528 INFO L275 PluginConnector]: CDTParser initialized [2020-07-08 23:35:27,529 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-fpi/indp4f.c [2020-07-08 23:35:27,610 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b95147a66/4a3fa59e3b9743d8aa7284be7e99fcf0/FLAGda90c7fc7 [2020-07-08 23:35:28,146 INFO L306 CDTParser]: Found 1 translation units. [2020-07-08 23:35:28,147 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/array-fpi/indp4f.c [2020-07-08 23:35:28,157 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b95147a66/4a3fa59e3b9743d8aa7284be7e99fcf0/FLAGda90c7fc7 [2020-07-08 23:35:28,448 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b95147a66/4a3fa59e3b9743d8aa7284be7e99fcf0 [2020-07-08 23:35:28,459 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-08 23:35:28,461 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-08 23:35:28,463 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-08 23:35:28,463 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-08 23:35:28,472 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-08 23:35:28,475 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.07 11:35:28" (1/1) ... [2020-07-08 23:35:28,480 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5ab124d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 11:35:28, skipping insertion in model container [2020-07-08 23:35:28,481 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.07 11:35:28" (1/1) ... [2020-07-08 23:35:28,493 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-08 23:35:28,525 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-08 23:35:28,759 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-08 23:35:28,775 INFO L203 MainTranslator]: Completed pre-run [2020-07-08 23:35:28,801 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-08 23:35:28,824 INFO L208 MainTranslator]: Completed translation [2020-07-08 23:35:28,825 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 11:35:28 WrapperNode [2020-07-08 23:35:28,825 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-08 23:35:28,826 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-08 23:35:28,826 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-08 23:35:28,827 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-08 23:35:28,926 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 11:35:28" (1/1) ... [2020-07-08 23:35:28,926 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 11:35:28" (1/1) ... [2020-07-08 23:35:28,934 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 11:35:28" (1/1) ... [2020-07-08 23:35:28,935 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 11:35:28" (1/1) ... [2020-07-08 23:35:28,946 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 11:35:28" (1/1) ... [2020-07-08 23:35:28,955 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 11:35:28" (1/1) ... [2020-07-08 23:35:28,956 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 11:35:28" (1/1) ... [2020-07-08 23:35:28,959 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-08 23:35:28,960 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-08 23:35:28,960 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-08 23:35:28,961 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-08 23:35:28,962 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 11:35:28" (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 [2020-07-08 23:35:29,041 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-08 23:35:29,042 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-08 23:35:29,042 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-07-08 23:35:29,042 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-07-08 23:35:29,042 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-08 23:35:29,042 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-08 23:35:29,042 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-07-08 23:35:29,042 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-07-08 23:35:29,043 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-07-08 23:35:29,043 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-08 23:35:29,043 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-07-08 23:35:29,044 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-08 23:35:29,045 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-07-08 23:35:29,045 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-08 23:35:29,045 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-08 23:35:29,045 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-08 23:35:29,046 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-08 23:35:29,046 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-08 23:35:29,611 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-08 23:35:29,612 INFO L295 CfgBuilder]: Removed 4 assume(true) statements. [2020-07-08 23:35:29,617 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.07 11:35:29 BoogieIcfgContainer [2020-07-08 23:35:29,617 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-08 23:35:29,619 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-08 23:35:29,619 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-08 23:35:29,624 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-08 23:35:29,624 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.07 11:35:28" (1/3) ... [2020-07-08 23:35:29,625 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@14ac7968 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.07 11:35:29, skipping insertion in model container [2020-07-08 23:35:29,626 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 11:35:28" (2/3) ... [2020-07-08 23:35:29,626 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@14ac7968 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.07 11:35:29, skipping insertion in model container [2020-07-08 23:35:29,627 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.07 11:35:29" (3/3) ... [2020-07-08 23:35:29,629 INFO L109 eAbstractionObserver]: Analyzing ICFG indp4f.c [2020-07-08 23:35:29,642 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-07-08 23:35:29,653 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-08 23:35:29,671 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-08 23:35:29,700 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-08 23:35:29,700 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-08 23:35:29,700 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-07-08 23:35:29,701 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-08 23:35:29,701 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-08 23:35:29,701 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-08 23:35:29,702 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-08 23:35:29,702 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-08 23:35:29,721 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states. [2020-07-08 23:35:29,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2020-07-08 23:35:29,735 INFO L414 BasicCegarLoop]: Found error trace [2020-07-08 23:35:29,737 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, 1, 1, 1, 1, 1] [2020-07-08 23:35:29,738 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-08 23:35:29,745 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-08 23:35:29,746 INFO L82 PathProgramCache]: Analyzing trace with hash -1846170158, now seen corresponding path program 1 times [2020-07-08 23:35:29,757 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-08 23:35:29,758 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1381906627] [2020-07-08 23:35:29,758 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-08 23:35:29,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 23:35:30,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 23:35:30,038 INFO L280 TraceCheckUtils]: 0: Hoare triple {78#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= ~N~0 |old(~N~0)|) (= |#NULL.offset| |old(#NULL.offset)|))} #NULL.base, #NULL.offset := 0, 0; {66#true} is VALID [2020-07-08 23:35:30,039 INFO L280 TraceCheckUtils]: 1: Hoare triple {66#true} #valid := #valid[0 := 0]; {66#true} is VALID [2020-07-08 23:35:30,040 INFO L280 TraceCheckUtils]: 2: Hoare triple {66#true} assume 0 < #StackHeapBarrier; {66#true} is VALID [2020-07-08 23:35:30,041 INFO L280 TraceCheckUtils]: 3: Hoare triple {66#true} ~N~0 := 0; {66#true} is VALID [2020-07-08 23:35:30,042 INFO L280 TraceCheckUtils]: 4: Hoare triple {66#true} assume true; {66#true} is VALID [2020-07-08 23:35:30,043 INFO L275 TraceCheckUtils]: 5: Hoare quadruple {66#true} {66#true} #121#return; {66#true} is VALID [2020-07-08 23:35:30,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 23:35:30,058 INFO L280 TraceCheckUtils]: 0: Hoare triple {66#true} ~cond := #in~cond; {66#true} is VALID [2020-07-08 23:35:30,059 INFO L280 TraceCheckUtils]: 1: Hoare triple {66#true} assume !(0 == ~cond); {66#true} is VALID [2020-07-08 23:35:30,059 INFO L280 TraceCheckUtils]: 2: Hoare triple {66#true} assume true; {66#true} is VALID [2020-07-08 23:35:30,060 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {66#true} {66#true} #117#return; {66#true} is VALID [2020-07-08 23:35:30,063 INFO L263 TraceCheckUtils]: 0: Hoare triple {66#true} call ULTIMATE.init(); {78#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= ~N~0 |old(~N~0)|) (= |#NULL.offset| |old(#NULL.offset)|))} is VALID [2020-07-08 23:35:30,063 INFO L280 TraceCheckUtils]: 1: Hoare triple {78#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= ~N~0 |old(~N~0)|) (= |#NULL.offset| |old(#NULL.offset)|))} #NULL.base, #NULL.offset := 0, 0; {66#true} is VALID [2020-07-08 23:35:30,064 INFO L280 TraceCheckUtils]: 2: Hoare triple {66#true} #valid := #valid[0 := 0]; {66#true} is VALID [2020-07-08 23:35:30,064 INFO L280 TraceCheckUtils]: 3: Hoare triple {66#true} assume 0 < #StackHeapBarrier; {66#true} is VALID [2020-07-08 23:35:30,065 INFO L280 TraceCheckUtils]: 4: Hoare triple {66#true} ~N~0 := 0; {66#true} is VALID [2020-07-08 23:35:30,065 INFO L280 TraceCheckUtils]: 5: Hoare triple {66#true} assume true; {66#true} is VALID [2020-07-08 23:35:30,066 INFO L275 TraceCheckUtils]: 6: Hoare quadruple {66#true} {66#true} #121#return; {66#true} is VALID [2020-07-08 23:35:30,066 INFO L263 TraceCheckUtils]: 7: Hoare triple {66#true} call #t~ret9 := main(); {66#true} is VALID [2020-07-08 23:35:30,067 INFO L280 TraceCheckUtils]: 8: Hoare triple {66#true} assume -2147483648 <= #t~nondet0 && #t~nondet0 <= 2147483647; {66#true} is VALID [2020-07-08 23:35:30,067 INFO L280 TraceCheckUtils]: 9: Hoare triple {66#true} ~N~0 := #t~nondet0; {66#true} is VALID [2020-07-08 23:35:30,067 INFO L280 TraceCheckUtils]: 10: Hoare triple {66#true} havoc #t~nondet0; {66#true} is VALID [2020-07-08 23:35:30,068 INFO L280 TraceCheckUtils]: 11: Hoare triple {66#true} assume !(~N~0 <= 0); {66#true} is VALID [2020-07-08 23:35:30,069 INFO L263 TraceCheckUtils]: 12: Hoare triple {66#true} call assume_abort_if_not((if ~N~0 <= 536870911 then 1 else 0)); {66#true} is VALID [2020-07-08 23:35:30,069 INFO L280 TraceCheckUtils]: 13: Hoare triple {66#true} ~cond := #in~cond; {66#true} is VALID [2020-07-08 23:35:30,070 INFO L280 TraceCheckUtils]: 14: Hoare triple {66#true} assume !(0 == ~cond); {66#true} is VALID [2020-07-08 23:35:30,070 INFO L280 TraceCheckUtils]: 15: Hoare triple {66#true} assume true; {66#true} is VALID [2020-07-08 23:35:30,070 INFO L275 TraceCheckUtils]: 16: Hoare quadruple {66#true} {66#true} #117#return; {66#true} is VALID [2020-07-08 23:35:30,071 INFO L280 TraceCheckUtils]: 17: Hoare triple {66#true} havoc ~i~0; {66#true} is VALID [2020-07-08 23:35:30,071 INFO L280 TraceCheckUtils]: 18: Hoare triple {66#true} SUMMARY for call #t~malloc1.base, #t~malloc1.offset := #Ultimate.allocOnHeap(8 * ~N~0); srcloc: L26 {66#true} is VALID [2020-07-08 23:35:30,072 INFO L280 TraceCheckUtils]: 19: Hoare triple {66#true} ~a~0.base, ~a~0.offset := #t~malloc1.base, #t~malloc1.offset; {66#true} is VALID [2020-07-08 23:35:30,072 INFO L280 TraceCheckUtils]: 20: Hoare triple {66#true} ~i~0 := 0; {66#true} is VALID [2020-07-08 23:35:30,074 INFO L280 TraceCheckUtils]: 21: Hoare triple {66#true} assume !true; {67#false} is VALID [2020-07-08 23:35:30,074 INFO L280 TraceCheckUtils]: 22: Hoare triple {67#false} ~i~0 := 0; {67#false} is VALID [2020-07-08 23:35:30,074 INFO L280 TraceCheckUtils]: 23: Hoare triple {67#false} assume !true; {67#false} is VALID [2020-07-08 23:35:30,075 INFO L280 TraceCheckUtils]: 24: Hoare triple {67#false} ~i~0 := 0; {67#false} is VALID [2020-07-08 23:35:30,075 INFO L280 TraceCheckUtils]: 25: Hoare triple {67#false} assume !true; {67#false} is VALID [2020-07-08 23:35:30,076 INFO L280 TraceCheckUtils]: 26: Hoare triple {67#false} ~i~0 := 0; {67#false} is VALID [2020-07-08 23:35:30,076 INFO L280 TraceCheckUtils]: 27: Hoare triple {67#false} assume !!(~i~0 < ~N~0); {67#false} is VALID [2020-07-08 23:35:30,077 INFO L280 TraceCheckUtils]: 28: Hoare triple {67#false} SUMMARY for call #t~mem8 := read~int(~a~0.base, ~a~0.offset + 8 * ~i~0, 8); srcloc: L45 {67#false} is VALID [2020-07-08 23:35:30,077 INFO L263 TraceCheckUtils]: 29: Hoare triple {67#false} call __VERIFIER_assert((if #t~mem8 == ~i~0 * ~i~0 then 1 else 0)); {67#false} is VALID [2020-07-08 23:35:30,078 INFO L280 TraceCheckUtils]: 30: Hoare triple {67#false} ~cond := #in~cond; {67#false} is VALID [2020-07-08 23:35:30,078 INFO L280 TraceCheckUtils]: 31: Hoare triple {67#false} assume 0 == ~cond; {67#false} is VALID [2020-07-08 23:35:30,078 INFO L280 TraceCheckUtils]: 32: Hoare triple {67#false} assume !false; {67#false} is VALID [2020-07-08 23:35:30,084 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-08 23:35:30,085 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1381906627] [2020-07-08 23:35:30,088 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-08 23:35:30,088 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-08 23:35:30,090 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1437604738] [2020-07-08 23:35:30,099 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 33 [2020-07-08 23:35:30,103 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-08 23:35:30,108 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states. [2020-07-08 23:35:30,179 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 33 edges. 33 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 23:35:30,180 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-08 23:35:30,180 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-08 23:35:30,191 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-08 23:35:30,192 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-08 23:35:30,196 INFO L87 Difference]: Start difference. First operand 63 states. Second operand 3 states. [2020-07-08 23:35:30,822 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 23:35:30,822 INFO L93 Difference]: Finished difference Result 109 states and 128 transitions. [2020-07-08 23:35:30,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-08 23:35:30,823 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 33 [2020-07-08 23:35:30,823 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-08 23:35:30,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-08 23:35:30,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 128 transitions. [2020-07-08 23:35:30,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-08 23:35:30,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 128 transitions. [2020-07-08 23:35:30,881 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states and 128 transitions. [2020-07-08 23:35:31,108 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 128 edges. 128 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 23:35:31,146 INFO L225 Difference]: With dead ends: 109 [2020-07-08 23:35:31,147 INFO L226 Difference]: Without dead ends: 56 [2020-07-08 23:35:31,156 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-08 23:35:31,185 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2020-07-08 23:35:31,303 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 56. [2020-07-08 23:35:31,303 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-08 23:35:31,304 INFO L82 GeneralOperation]: Start isEquivalent. First operand 56 states. Second operand 56 states. [2020-07-08 23:35:31,305 INFO L74 IsIncluded]: Start isIncluded. First operand 56 states. Second operand 56 states. [2020-07-08 23:35:31,306 INFO L87 Difference]: Start difference. First operand 56 states. Second operand 56 states. [2020-07-08 23:35:31,312 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 23:35:31,312 INFO L93 Difference]: Finished difference Result 56 states and 59 transitions. [2020-07-08 23:35:31,313 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 59 transitions. [2020-07-08 23:35:31,314 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-08 23:35:31,314 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-08 23:35:31,314 INFO L74 IsIncluded]: Start isIncluded. First operand 56 states. Second operand 56 states. [2020-07-08 23:35:31,314 INFO L87 Difference]: Start difference. First operand 56 states. Second operand 56 states. [2020-07-08 23:35:31,320 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 23:35:31,321 INFO L93 Difference]: Finished difference Result 56 states and 59 transitions. [2020-07-08 23:35:31,321 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 59 transitions. [2020-07-08 23:35:31,322 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-08 23:35:31,322 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-08 23:35:31,323 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-08 23:35:31,323 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-08 23:35:31,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 56 states. [2020-07-08 23:35:31,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 59 transitions. [2020-07-08 23:35:31,329 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 59 transitions. Word has length 33 [2020-07-08 23:35:31,330 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-08 23:35:31,330 INFO L479 AbstractCegarLoop]: Abstraction has 56 states and 59 transitions. [2020-07-08 23:35:31,330 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-08 23:35:31,330 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 56 states and 59 transitions. [2020-07-08 23:35:31,423 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 59 edges. 59 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 23:35:31,424 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 59 transitions. [2020-07-08 23:35:31,425 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2020-07-08 23:35:31,426 INFO L414 BasicCegarLoop]: Found error trace [2020-07-08 23:35:31,426 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, 1, 1, 1, 1, 1] [2020-07-08 23:35:31,426 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-08 23:35:31,427 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-08 23:35:31,427 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-08 23:35:31,427 INFO L82 PathProgramCache]: Analyzing trace with hash 1457656721, now seen corresponding path program 1 times [2020-07-08 23:35:31,428 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-08 23:35:31,428 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1615728519] [2020-07-08 23:35:31,428 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-08 23:35:31,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 23:35:31,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 23:35:31,626 INFO L280 TraceCheckUtils]: 0: Hoare triple {537#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= ~N~0 |old(~N~0)|) (= |#NULL.offset| |old(#NULL.offset)|))} #NULL.base, #NULL.offset := 0, 0; {523#true} is VALID [2020-07-08 23:35:31,626 INFO L280 TraceCheckUtils]: 1: Hoare triple {523#true} #valid := #valid[0 := 0]; {523#true} is VALID [2020-07-08 23:35:31,627 INFO L280 TraceCheckUtils]: 2: Hoare triple {523#true} assume 0 < #StackHeapBarrier; {523#true} is VALID [2020-07-08 23:35:31,627 INFO L280 TraceCheckUtils]: 3: Hoare triple {523#true} ~N~0 := 0; {523#true} is VALID [2020-07-08 23:35:31,628 INFO L280 TraceCheckUtils]: 4: Hoare triple {523#true} assume true; {523#true} is VALID [2020-07-08 23:35:31,628 INFO L275 TraceCheckUtils]: 5: Hoare quadruple {523#true} {523#true} #121#return; {523#true} is VALID [2020-07-08 23:35:31,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 23:35:31,641 INFO L280 TraceCheckUtils]: 0: Hoare triple {523#true} ~cond := #in~cond; {523#true} is VALID [2020-07-08 23:35:31,642 INFO L280 TraceCheckUtils]: 1: Hoare triple {523#true} assume !(0 == ~cond); {523#true} is VALID [2020-07-08 23:35:31,642 INFO L280 TraceCheckUtils]: 2: Hoare triple {523#true} assume true; {523#true} is VALID [2020-07-08 23:35:31,643 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {523#true} {531#(<= 1 ~N~0)} #117#return; {531#(<= 1 ~N~0)} is VALID [2020-07-08 23:35:31,645 INFO L263 TraceCheckUtils]: 0: Hoare triple {523#true} call ULTIMATE.init(); {537#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= ~N~0 |old(~N~0)|) (= |#NULL.offset| |old(#NULL.offset)|))} is VALID [2020-07-08 23:35:31,646 INFO L280 TraceCheckUtils]: 1: Hoare triple {537#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= ~N~0 |old(~N~0)|) (= |#NULL.offset| |old(#NULL.offset)|))} #NULL.base, #NULL.offset := 0, 0; {523#true} is VALID [2020-07-08 23:35:31,646 INFO L280 TraceCheckUtils]: 2: Hoare triple {523#true} #valid := #valid[0 := 0]; {523#true} is VALID [2020-07-08 23:35:31,646 INFO L280 TraceCheckUtils]: 3: Hoare triple {523#true} assume 0 < #StackHeapBarrier; {523#true} is VALID [2020-07-08 23:35:31,647 INFO L280 TraceCheckUtils]: 4: Hoare triple {523#true} ~N~0 := 0; {523#true} is VALID [2020-07-08 23:35:31,647 INFO L280 TraceCheckUtils]: 5: Hoare triple {523#true} assume true; {523#true} is VALID [2020-07-08 23:35:31,647 INFO L275 TraceCheckUtils]: 6: Hoare quadruple {523#true} {523#true} #121#return; {523#true} is VALID [2020-07-08 23:35:31,648 INFO L263 TraceCheckUtils]: 7: Hoare triple {523#true} call #t~ret9 := main(); {523#true} is VALID [2020-07-08 23:35:31,648 INFO L280 TraceCheckUtils]: 8: Hoare triple {523#true} assume -2147483648 <= #t~nondet0 && #t~nondet0 <= 2147483647; {523#true} is VALID [2020-07-08 23:35:31,648 INFO L280 TraceCheckUtils]: 9: Hoare triple {523#true} ~N~0 := #t~nondet0; {523#true} is VALID [2020-07-08 23:35:31,649 INFO L280 TraceCheckUtils]: 10: Hoare triple {523#true} havoc #t~nondet0; {523#true} is VALID [2020-07-08 23:35:31,650 INFO L280 TraceCheckUtils]: 11: Hoare triple {523#true} assume !(~N~0 <= 0); {531#(<= 1 ~N~0)} is VALID [2020-07-08 23:35:31,651 INFO L263 TraceCheckUtils]: 12: Hoare triple {531#(<= 1 ~N~0)} call assume_abort_if_not((if ~N~0 <= 536870911 then 1 else 0)); {523#true} is VALID [2020-07-08 23:35:31,651 INFO L280 TraceCheckUtils]: 13: Hoare triple {523#true} ~cond := #in~cond; {523#true} is VALID [2020-07-08 23:35:31,651 INFO L280 TraceCheckUtils]: 14: Hoare triple {523#true} assume !(0 == ~cond); {523#true} is VALID [2020-07-08 23:35:31,652 INFO L280 TraceCheckUtils]: 15: Hoare triple {523#true} assume true; {523#true} is VALID [2020-07-08 23:35:31,653 INFO L275 TraceCheckUtils]: 16: Hoare quadruple {523#true} {531#(<= 1 ~N~0)} #117#return; {531#(<= 1 ~N~0)} is VALID [2020-07-08 23:35:31,654 INFO L280 TraceCheckUtils]: 17: Hoare triple {531#(<= 1 ~N~0)} havoc ~i~0; {531#(<= 1 ~N~0)} is VALID [2020-07-08 23:35:31,655 INFO L280 TraceCheckUtils]: 18: Hoare triple {531#(<= 1 ~N~0)} SUMMARY for call #t~malloc1.base, #t~malloc1.offset := #Ultimate.allocOnHeap(8 * ~N~0); srcloc: L26 {531#(<= 1 ~N~0)} is VALID [2020-07-08 23:35:31,656 INFO L280 TraceCheckUtils]: 19: Hoare triple {531#(<= 1 ~N~0)} ~a~0.base, ~a~0.offset := #t~malloc1.base, #t~malloc1.offset; {531#(<= 1 ~N~0)} is VALID [2020-07-08 23:35:31,657 INFO L280 TraceCheckUtils]: 20: Hoare triple {531#(<= 1 ~N~0)} ~i~0 := 0; {536#(and (= 0 main_~i~0) (<= 1 ~N~0))} is VALID [2020-07-08 23:35:31,659 INFO L280 TraceCheckUtils]: 21: Hoare triple {536#(and (= 0 main_~i~0) (<= 1 ~N~0))} assume !(~i~0 < ~N~0); {524#false} is VALID [2020-07-08 23:35:31,659 INFO L280 TraceCheckUtils]: 22: Hoare triple {524#false} ~i~0 := 0; {524#false} is VALID [2020-07-08 23:35:31,660 INFO L280 TraceCheckUtils]: 23: Hoare triple {524#false} assume !(~i~0 < ~N~0); {524#false} is VALID [2020-07-08 23:35:31,660 INFO L280 TraceCheckUtils]: 24: Hoare triple {524#false} ~i~0 := 0; {524#false} is VALID [2020-07-08 23:35:31,660 INFO L280 TraceCheckUtils]: 25: Hoare triple {524#false} assume !(~i~0 < ~N~0); {524#false} is VALID [2020-07-08 23:35:31,661 INFO L280 TraceCheckUtils]: 26: Hoare triple {524#false} ~i~0 := 0; {524#false} is VALID [2020-07-08 23:35:31,661 INFO L280 TraceCheckUtils]: 27: Hoare triple {524#false} assume !!(~i~0 < ~N~0); {524#false} is VALID [2020-07-08 23:35:31,661 INFO L280 TraceCheckUtils]: 28: Hoare triple {524#false} SUMMARY for call #t~mem8 := read~int(~a~0.base, ~a~0.offset + 8 * ~i~0, 8); srcloc: L45 {524#false} is VALID [2020-07-08 23:35:31,662 INFO L263 TraceCheckUtils]: 29: Hoare triple {524#false} call __VERIFIER_assert((if #t~mem8 == ~i~0 * ~i~0 then 1 else 0)); {524#false} is VALID [2020-07-08 23:35:31,662 INFO L280 TraceCheckUtils]: 30: Hoare triple {524#false} ~cond := #in~cond; {524#false} is VALID [2020-07-08 23:35:31,662 INFO L280 TraceCheckUtils]: 31: Hoare triple {524#false} assume 0 == ~cond; {524#false} is VALID [2020-07-08 23:35:31,663 INFO L280 TraceCheckUtils]: 32: Hoare triple {524#false} assume !false; {524#false} is VALID [2020-07-08 23:35:31,665 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-08 23:35:31,665 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1615728519] [2020-07-08 23:35:31,666 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-08 23:35:31,666 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-08 23:35:31,666 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [241614573] [2020-07-08 23:35:31,669 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 33 [2020-07-08 23:35:31,670 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-08 23:35:31,670 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 5 states. [2020-07-08 23:35:31,718 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 33 edges. 33 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 23:35:31,718 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-08 23:35:31,718 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-08 23:35:31,719 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-08 23:35:31,719 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-07-08 23:35:31,720 INFO L87 Difference]: Start difference. First operand 56 states and 59 transitions. Second operand 5 states. [2020-07-08 23:35:32,451 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 23:35:32,451 INFO L93 Difference]: Finished difference Result 108 states and 117 transitions. [2020-07-08 23:35:32,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-08 23:35:32,452 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 33 [2020-07-08 23:35:32,452 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-08 23:35:32,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-07-08 23:35:32,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 117 transitions. [2020-07-08 23:35:32,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-07-08 23:35:32,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 117 transitions. [2020-07-08 23:35:32,466 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 6 states and 117 transitions. [2020-07-08 23:35:32,625 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 117 edges. 117 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 23:35:32,629 INFO L225 Difference]: With dead ends: 108 [2020-07-08 23:35:32,630 INFO L226 Difference]: Without dead ends: 78 [2020-07-08 23:35:32,631 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-07-08 23:35:32,632 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2020-07-08 23:35:32,747 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 59. [2020-07-08 23:35:32,747 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-08 23:35:32,747 INFO L82 GeneralOperation]: Start isEquivalent. First operand 78 states. Second operand 59 states. [2020-07-08 23:35:32,748 INFO L74 IsIncluded]: Start isIncluded. First operand 78 states. Second operand 59 states. [2020-07-08 23:35:32,748 INFO L87 Difference]: Start difference. First operand 78 states. Second operand 59 states. [2020-07-08 23:35:32,754 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 23:35:32,755 INFO L93 Difference]: Finished difference Result 78 states and 82 transitions. [2020-07-08 23:35:32,755 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 82 transitions. [2020-07-08 23:35:32,756 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-08 23:35:32,757 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-08 23:35:32,757 INFO L74 IsIncluded]: Start isIncluded. First operand 59 states. Second operand 78 states. [2020-07-08 23:35:32,757 INFO L87 Difference]: Start difference. First operand 59 states. Second operand 78 states. [2020-07-08 23:35:32,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 23:35:32,762 INFO L93 Difference]: Finished difference Result 78 states and 82 transitions. [2020-07-08 23:35:32,763 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 82 transitions. [2020-07-08 23:35:32,764 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-08 23:35:32,764 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-08 23:35:32,764 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-08 23:35:32,764 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-08 23:35:32,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 59 states. [2020-07-08 23:35:32,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 62 transitions. [2020-07-08 23:35:32,768 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 62 transitions. Word has length 33 [2020-07-08 23:35:32,768 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-08 23:35:32,769 INFO L479 AbstractCegarLoop]: Abstraction has 59 states and 62 transitions. [2020-07-08 23:35:32,769 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-08 23:35:32,769 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 59 states and 62 transitions. [2020-07-08 23:35:32,854 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 62 edges. 62 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 23:35:32,854 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 62 transitions. [2020-07-08 23:35:32,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-07-08 23:35:32,856 INFO L414 BasicCegarLoop]: Found error trace [2020-07-08 23:35:32,857 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-08 23:35:32,857 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-08 23:35:32,858 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-08 23:35:32,858 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-08 23:35:32,858 INFO L82 PathProgramCache]: Analyzing trace with hash 1203755678, now seen corresponding path program 1 times [2020-07-08 23:35:32,859 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-08 23:35:32,859 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1960679595] [2020-07-08 23:35:32,859 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-08 23:35:32,876 ERROR L271 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-07-08 23:35:32,877 WARN L168 FreeRefinementEngine]: Strategy FIXED_PREFERENCES was unsuccessful and could not determine trace feasibility [2020-07-08 23:35:32,877 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-07-08 23:35:32,883 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-07-08 23:35:32,902 WARN L170 areAnnotationChecker]: ULTIMATE.initENTRY has no Hoare annotation [2020-07-08 23:35:32,902 WARN L170 areAnnotationChecker]: ULTIMATE.startENTRY has no Hoare annotation [2020-07-08 23:35:32,902 WARN L170 areAnnotationChecker]: ULTIMATE.startENTRY has no Hoare annotation [2020-07-08 23:35:32,902 WARN L170 areAnnotationChecker]: assume_abort_if_notENTRY has no Hoare annotation [2020-07-08 23:35:32,903 WARN L170 areAnnotationChecker]: mainENTRY has no Hoare annotation [2020-07-08 23:35:32,903 WARN L170 areAnnotationChecker]: __VERIFIER_assertENTRY has no Hoare annotation [2020-07-08 23:35:32,903 WARN L170 areAnnotationChecker]: L-1 has no Hoare annotation [2020-07-08 23:35:32,903 WARN L170 areAnnotationChecker]: L-1 has no Hoare annotation [2020-07-08 23:35:32,903 WARN L170 areAnnotationChecker]: L-1 has no Hoare annotation [2020-07-08 23:35:32,903 WARN L170 areAnnotationChecker]: L11 has no Hoare annotation [2020-07-08 23:35:32,903 WARN L170 areAnnotationChecker]: L11 has no Hoare annotation [2020-07-08 23:35:32,903 WARN L170 areAnnotationChecker]: L21 has no Hoare annotation [2020-07-08 23:35:32,903 WARN L170 areAnnotationChecker]: L13 has no Hoare annotation [2020-07-08 23:35:32,903 WARN L170 areAnnotationChecker]: L13 has no Hoare annotation [2020-07-08 23:35:32,904 WARN L170 areAnnotationChecker]: L-1-1 has no Hoare annotation [2020-07-08 23:35:32,904 WARN L170 areAnnotationChecker]: ULTIMATE.startFINAL has no Hoare annotation [2020-07-08 23:35:32,904 WARN L170 areAnnotationChecker]: L11-1 has no Hoare annotation [2020-07-08 23:35:32,904 WARN L170 areAnnotationChecker]: L11-3 has no Hoare annotation [2020-07-08 23:35:32,904 WARN L170 areAnnotationChecker]: L21-1 has no Hoare annotation [2020-07-08 23:35:32,904 WARN L170 areAnnotationChecker]: L13-1 has no Hoare annotation [2020-07-08 23:35:32,904 WARN L170 areAnnotationChecker]: L13-1 has no Hoare annotation [2020-07-08 23:35:32,904 WARN L170 areAnnotationChecker]: L13-3 has no Hoare annotation [2020-07-08 23:35:32,905 WARN L170 areAnnotationChecker]: L17 has no Hoare annotation [2020-07-08 23:35:32,905 WARN L170 areAnnotationChecker]: assume_abort_if_notEXIT has no Hoare annotation [2020-07-08 23:35:32,905 WARN L170 areAnnotationChecker]: L22 has no Hoare annotation [2020-07-08 23:35:32,905 WARN L170 areAnnotationChecker]: L22 has no Hoare annotation [2020-07-08 23:35:32,905 WARN L170 areAnnotationChecker]: __VERIFIER_assertEXIT has no Hoare annotation [2020-07-08 23:35:32,905 WARN L170 areAnnotationChecker]: ULTIMATE.initFINAL has no Hoare annotation [2020-07-08 23:35:32,905 WARN L170 areAnnotationChecker]: L23-1 has no Hoare annotation [2020-07-08 23:35:32,906 WARN L170 areAnnotationChecker]: L22-1 has no Hoare annotation [2020-07-08 23:35:32,906 WARN L170 areAnnotationChecker]: L23 has no Hoare annotation [2020-07-08 23:35:32,906 WARN L170 areAnnotationChecker]: L23 has no Hoare annotation [2020-07-08 23:35:32,906 WARN L170 areAnnotationChecker]: L45-2 has no Hoare annotation [2020-07-08 23:35:32,906 WARN L170 areAnnotationChecker]: ULTIMATE.initEXIT has no Hoare annotation [2020-07-08 23:35:32,906 WARN L170 areAnnotationChecker]: L26 has no Hoare annotation [2020-07-08 23:35:32,906 WARN L170 areAnnotationChecker]: mainFINAL has no Hoare annotation [2020-07-08 23:35:32,906 WARN L170 areAnnotationChecker]: L43-2 has no Hoare annotation [2020-07-08 23:35:32,906 WARN L170 areAnnotationChecker]: L26-1 has no Hoare annotation [2020-07-08 23:35:32,906 WARN L170 areAnnotationChecker]: mainEXIT has no Hoare annotation [2020-07-08 23:35:32,907 WARN L170 areAnnotationChecker]: L43-3 has no Hoare annotation [2020-07-08 23:35:32,907 WARN L170 areAnnotationChecker]: L28 has no Hoare annotation [2020-07-08 23:35:32,907 WARN L170 areAnnotationChecker]: L43-4 has no Hoare annotation [2020-07-08 23:35:32,907 WARN L170 areAnnotationChecker]: L28-5 has no Hoare annotation [2020-07-08 23:35:32,907 WARN L170 areAnnotationChecker]: L28-5 has no Hoare annotation [2020-07-08 23:35:32,907 WARN L170 areAnnotationChecker]: L28-5 has no Hoare annotation [2020-07-08 23:35:32,907 WARN L170 areAnnotationChecker]: L43-5 has no Hoare annotation [2020-07-08 23:35:32,907 WARN L170 areAnnotationChecker]: L43-5 has no Hoare annotation [2020-07-08 23:35:32,907 WARN L170 areAnnotationChecker]: L43-5 has no Hoare annotation [2020-07-08 23:35:32,907 WARN L170 areAnnotationChecker]: L28-6 has no Hoare annotation [2020-07-08 23:35:32,907 WARN L170 areAnnotationChecker]: L30 has no Hoare annotation [2020-07-08 23:35:32,907 WARN L170 areAnnotationChecker]: L43-6 has no Hoare annotation [2020-07-08 23:35:32,907 WARN L170 areAnnotationChecker]: L45 has no Hoare annotation [2020-07-08 23:35:32,908 WARN L170 areAnnotationChecker]: L33-5 has no Hoare annotation [2020-07-08 23:35:32,908 WARN L170 areAnnotationChecker]: L33-5 has no Hoare annotation [2020-07-08 23:35:32,908 WARN L170 areAnnotationChecker]: L33-5 has no Hoare annotation [2020-07-08 23:35:32,908 WARN L170 areAnnotationChecker]: L30-1 has no Hoare annotation [2020-07-08 23:35:32,908 WARN L170 areAnnotationChecker]: L45-1 has no Hoare annotation [2020-07-08 23:35:32,908 WARN L170 areAnnotationChecker]: L45-1 has no Hoare annotation [2020-07-08 23:35:32,908 WARN L170 areAnnotationChecker]: L33-6 has no Hoare annotation [2020-07-08 23:35:32,908 WARN L170 areAnnotationChecker]: L35 has no Hoare annotation [2020-07-08 23:35:32,908 WARN L170 areAnnotationChecker]: L28-3 has no Hoare annotation [2020-07-08 23:35:32,908 WARN L170 areAnnotationChecker]: L38-5 has no Hoare annotation [2020-07-08 23:35:32,908 WARN L170 areAnnotationChecker]: L38-5 has no Hoare annotation [2020-07-08 23:35:32,908 WARN L170 areAnnotationChecker]: L38-5 has no Hoare annotation [2020-07-08 23:35:32,909 WARN L170 areAnnotationChecker]: L35-1 has no Hoare annotation [2020-07-08 23:35:32,909 WARN L170 areAnnotationChecker]: L28-4 has no Hoare annotation [2020-07-08 23:35:32,909 WARN L170 areAnnotationChecker]: L38-6 has no Hoare annotation [2020-07-08 23:35:32,909 WARN L170 areAnnotationChecker]: L40 has no Hoare annotation [2020-07-08 23:35:32,909 WARN L170 areAnnotationChecker]: L35-2 has no Hoare annotation [2020-07-08 23:35:32,909 WARN L170 areAnnotationChecker]: L40-1 has no Hoare annotation [2020-07-08 23:35:32,909 WARN L170 areAnnotationChecker]: L33-2 has no Hoare annotation [2020-07-08 23:35:32,909 WARN L170 areAnnotationChecker]: L40-2 has no Hoare annotation [2020-07-08 23:35:32,909 WARN L170 areAnnotationChecker]: L33-3 has no Hoare annotation [2020-07-08 23:35:32,909 WARN L170 areAnnotationChecker]: L38-2 has no Hoare annotation [2020-07-08 23:35:32,909 WARN L170 areAnnotationChecker]: L33-4 has no Hoare annotation [2020-07-08 23:35:32,909 WARN L170 areAnnotationChecker]: L38-3 has no Hoare annotation [2020-07-08 23:35:32,910 WARN L170 areAnnotationChecker]: L38-4 has no Hoare annotation [2020-07-08 23:35:32,910 INFO L163 areAnnotationChecker]: CFG has 0 edges. 0 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. 0 times interpolants missing. [2020-07-08 23:35:32,913 WARN L231 ceAbstractionStarter]: Unable to decide correctness. Please check the following counterexample manually. [2020-07-08 23:35:32,914 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.07 11:35:32 BoogieIcfgContainer [2020-07-08 23:35:32,914 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-08 23:35:32,918 INFO L168 Benchmark]: Toolchain (without parser) took 4456.15 ms. Allocated memory was 133.2 MB in the beginning and 261.6 MB in the end (delta: 128.5 MB). Free memory was 98.2 MB in the beginning and 137.2 MB in the end (delta: -38.9 MB). Peak memory consumption was 89.5 MB. Max. memory is 7.1 GB. [2020-07-08 23:35:32,919 INFO L168 Benchmark]: CDTParser took 0.38 ms. Allocated memory is still 133.2 MB. Free memory was 116.6 MB in the beginning and 116.4 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. [2020-07-08 23:35:32,920 INFO L168 Benchmark]: CACSL2BoogieTranslator took 362.87 ms. Allocated memory is still 133.2 MB. Free memory was 98.0 MB in the beginning and 86.8 MB in the end (delta: 11.2 MB). Peak memory consumption was 11.2 MB. Max. memory is 7.1 GB. [2020-07-08 23:35:32,921 INFO L168 Benchmark]: Boogie Preprocessor took 133.45 ms. Allocated memory was 133.2 MB in the beginning and 198.7 MB in the end (delta: 65.5 MB). Free memory was 86.8 MB in the beginning and 176.0 MB in the end (delta: -89.2 MB). Peak memory consumption was 14.0 MB. Max. memory is 7.1 GB. [2020-07-08 23:35:32,922 INFO L168 Benchmark]: RCFGBuilder took 657.42 ms. Allocated memory is still 198.7 MB. Free memory was 176.0 MB in the beginning and 147.6 MB in the end (delta: 28.4 MB). Peak memory consumption was 28.4 MB. Max. memory is 7.1 GB. [2020-07-08 23:35:32,923 INFO L168 Benchmark]: TraceAbstraction took 3295.23 ms. Allocated memory was 198.7 MB in the beginning and 261.6 MB in the end (delta: 62.9 MB). Free memory was 146.8 MB in the beginning and 137.2 MB in the end (delta: 9.7 MB). Peak memory consumption was 72.6 MB. Max. memory is 7.1 GB. [2020-07-08 23:35:32,928 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 0.38 ms. Allocated memory is still 133.2 MB. Free memory was 116.6 MB in the beginning and 116.4 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 362.87 ms. Allocated memory is still 133.2 MB. Free memory was 98.0 MB in the beginning and 86.8 MB in the end (delta: 11.2 MB). Peak memory consumption was 11.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 133.45 ms. Allocated memory was 133.2 MB in the beginning and 198.7 MB in the end (delta: 65.5 MB). Free memory was 86.8 MB in the beginning and 176.0 MB in the end (delta: -89.2 MB). Peak memory consumption was 14.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 657.42 ms. Allocated memory is still 198.7 MB. Free memory was 176.0 MB in the beginning and 147.6 MB in the end (delta: 28.4 MB). Peak memory consumption was 28.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 3295.23 ms. Allocated memory was 198.7 MB in the beginning and 261.6 MB in the end (delta: 62.9 MB). Free memory was 146.8 MB in the beginning and 137.2 MB in the end (delta: 9.7 MB). Peak memory consumption was 72.6 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 13]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: unable to decide satisfiability of path constraint. Possible FailurePath: [L17] int N; [L21] N = __VERIFIER_nondet_int() [L22] COND FALSE !(N <= 0) [L23] CALL assume_abort_if_not(N <= 2147483647/sizeof(int)) [L11] COND FALSE !(!cond) [L23] RET assume_abort_if_not(N <= 2147483647/sizeof(int)) [L25] int i; [L26] long long *a = malloc(sizeof(long long)*N); [L28] i=0 [L28] COND TRUE i