/usr/bin/java -ea -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/array-fpi/nsqmf.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-8fc6572 [2020-07-10 15:26:38,986 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-10 15:26:38,988 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-10 15:26:39,008 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-10 15:26:39,009 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-10 15:26:39,011 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-10 15:26:39,013 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-10 15:26:39,020 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-10 15:26:39,032 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-10 15:26:39,034 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-10 15:26:39,035 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-10 15:26:39,037 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-10 15:26:39,038 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-10 15:26:39,041 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-10 15:26:39,042 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-10 15:26:39,045 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-10 15:26:39,047 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-10 15:26:39,050 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-10 15:26:39,052 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-10 15:26:39,054 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-10 15:26:39,055 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-10 15:26:39,057 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-10 15:26:39,058 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-10 15:26:39,058 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-10 15:26:39,061 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-10 15:26:39,068 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-10 15:26:39,069 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-10 15:26:39,070 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-10 15:26:39,071 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-07-10 15:26:39,086 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-10 15:26:39,086 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-10 15:26:39,088 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-10 15:26:39,088 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-10 15:26:39,088 INFO L138 SettingsManager]: * Use SBE=true [2020-07-10 15:26:39,089 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-10 15:26:39,089 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-10 15:26:39,089 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-10 15:26:39,089 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-10 15:26:39,089 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-10 15:26:39,089 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-10 15:26:39,090 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-10 15:26:39,090 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-10 15:26:39,090 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-10 15:26:39,090 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-10 15:26:39,091 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-10 15:26:39,091 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-10 15:26:39,091 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-10 15:26:39,091 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-10 15:26:39,091 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-10 15:26:39,092 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-10 15:26:39,092 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-10 15:26:39,092 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-10 15:26:39,092 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-10 15:26:39,092 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-10 15:26:39,093 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-10 15:26:39,093 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-10 15:26:39,093 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-10 15:26:39,093 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-10 15:26:39,093 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-07-10 15:26:39,386 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-10 15:26:39,401 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-10 15:26:39,404 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-10 15:26:39,406 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-10 15:26:39,406 INFO L275 PluginConnector]: CDTParser initialized [2020-07-10 15:26:39,407 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-fpi/nsqmf.c [2020-07-10 15:26:39,490 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/da4a95afc/bcbea46000134ec18cdcf6881363b7d0/FLAG9f597a5cf [2020-07-10 15:26:39,998 INFO L306 CDTParser]: Found 1 translation units. [2020-07-10 15:26:39,999 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/array-fpi/nsqmf.c [2020-07-10 15:26:40,006 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/da4a95afc/bcbea46000134ec18cdcf6881363b7d0/FLAG9f597a5cf [2020-07-10 15:26:40,342 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/da4a95afc/bcbea46000134ec18cdcf6881363b7d0 [2020-07-10 15:26:40,353 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-10 15:26:40,356 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-10 15:26:40,357 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-10 15:26:40,357 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-10 15:26:40,361 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-10 15:26:40,363 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.07 03:26:40" (1/1) ... [2020-07-10 15:26:40,366 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3be51f55 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 03:26:40, skipping insertion in model container [2020-07-10 15:26:40,366 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.07 03:26:40" (1/1) ... [2020-07-10 15:26:40,375 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-10 15:26:40,399 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-10 15:26:40,581 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-10 15:26:40,595 INFO L203 MainTranslator]: Completed pre-run [2020-07-10 15:26:40,621 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-10 15:26:40,643 INFO L208 MainTranslator]: Completed translation [2020-07-10 15:26:40,644 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 03:26:40 WrapperNode [2020-07-10 15:26:40,644 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-10 15:26:40,645 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-10 15:26:40,645 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-10 15:26:40,646 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-10 15:26:40,752 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 03:26:40" (1/1) ... [2020-07-10 15:26:40,752 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 03:26:40" (1/1) ... [2020-07-10 15:26:40,764 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 03:26:40" (1/1) ... [2020-07-10 15:26:40,765 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 03:26:40" (1/1) ... [2020-07-10 15:26:40,791 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 03:26:40" (1/1) ... [2020-07-10 15:26:40,805 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 03:26:40" (1/1) ... [2020-07-10 15:26:40,806 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 03:26:40" (1/1) ... [2020-07-10 15:26:40,809 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-10 15:26:40,810 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-10 15:26:40,810 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-10 15:26:40,810 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-10 15:26:40,811 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 03:26:40" (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 [2020-07-10 15:26:40,874 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-10 15:26:40,875 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-10 15:26:40,875 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-07-10 15:26:40,875 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-07-10 15:26:40,875 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-10 15:26:40,875 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-10 15:26:40,875 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-07-10 15:26:40,876 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-07-10 15:26:40,876 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-07-10 15:26:40,876 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-10 15:26:40,876 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-07-10 15:26:40,876 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-10 15:26:40,876 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-07-10 15:26:40,876 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-10 15:26:40,877 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-10 15:26:40,877 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-10 15:26:40,877 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-10 15:26:40,877 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-10 15:26:41,342 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-10 15:26:41,342 INFO L295 CfgBuilder]: Removed 3 assume(true) statements. [2020-07-10 15:26:41,346 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.07 03:26:41 BoogieIcfgContainer [2020-07-10 15:26:41,346 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-10 15:26:41,348 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-10 15:26:41,348 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-10 15:26:41,351 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-10 15:26:41,351 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.07 03:26:40" (1/3) ... [2020-07-10 15:26:41,352 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f7ce83d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.07 03:26:41, skipping insertion in model container [2020-07-10 15:26:41,352 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 03:26:40" (2/3) ... [2020-07-10 15:26:41,352 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f7ce83d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.07 03:26:41, skipping insertion in model container [2020-07-10 15:26:41,353 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.07 03:26:41" (3/3) ... [2020-07-10 15:26:41,355 INFO L109 eAbstractionObserver]: Analyzing ICFG nsqmf.c [2020-07-10 15:26:41,363 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-07-10 15:26:41,371 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-10 15:26:41,384 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-10 15:26:41,405 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-10 15:26:41,406 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-10 15:26:41,406 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-07-10 15:26:41,406 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-10 15:26:41,406 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-10 15:26:41,407 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-10 15:26:41,407 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-10 15:26:41,407 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-10 15:26:41,427 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states. [2020-07-10 15:26:41,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-07-10 15:26:41,434 INFO L414 BasicCegarLoop]: Found error trace [2020-07-10 15:26:41,435 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] [2020-07-10 15:26:41,435 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-10 15:26:41,440 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-10 15:26:41,440 INFO L82 PathProgramCache]: Analyzing trace with hash -1314760119, now seen corresponding path program 1 times [2020-07-10 15:26:41,451 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-10 15:26:41,451 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [272762380] [2020-07-10 15:26:41,452 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-10 15:26:41,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 15:26:41,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 15:26:41,684 INFO L280 TraceCheckUtils]: 0: Hoare triple {46#(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;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;~N~0 := 0; {37#true} is VALID [2020-07-10 15:26:41,684 INFO L280 TraceCheckUtils]: 1: Hoare triple {37#true} assume true; {37#true} is VALID [2020-07-10 15:26:41,685 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {37#true} {37#true} #81#return; {37#true} is VALID [2020-07-10 15:26:41,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 15:26:41,698 INFO L280 TraceCheckUtils]: 0: Hoare triple {37#true} ~cond := #in~cond; {37#true} is VALID [2020-07-10 15:26:41,699 INFO L280 TraceCheckUtils]: 1: Hoare triple {37#true} assume 0 == ~cond;assume false; {38#false} is VALID [2020-07-10 15:26:41,700 INFO L280 TraceCheckUtils]: 2: Hoare triple {38#false} assume true; {38#false} is VALID [2020-07-10 15:26:41,700 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {38#false} {37#true} #77#return; {38#false} is VALID [2020-07-10 15:26:41,702 INFO L263 TraceCheckUtils]: 0: Hoare triple {37#true} call ULTIMATE.init(); {46#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= ~N~0 |old(~N~0)|) (= |#NULL.offset| |old(#NULL.offset)|))} is VALID [2020-07-10 15:26:41,703 INFO L280 TraceCheckUtils]: 1: Hoare triple {46#(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;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;~N~0 := 0; {37#true} is VALID [2020-07-10 15:26:41,703 INFO L280 TraceCheckUtils]: 2: Hoare triple {37#true} assume true; {37#true} is VALID [2020-07-10 15:26:41,704 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {37#true} {37#true} #81#return; {37#true} is VALID [2020-07-10 15:26:41,704 INFO L263 TraceCheckUtils]: 4: Hoare triple {37#true} call #t~ret10 := main(); {37#true} is VALID [2020-07-10 15:26:41,704 INFO L280 TraceCheckUtils]: 5: Hoare triple {37#true} assume -2147483648 <= #t~nondet0 && #t~nondet0 <= 2147483647;~N~0 := #t~nondet0;havoc #t~nondet0; {37#true} is VALID [2020-07-10 15:26:41,705 INFO L280 TraceCheckUtils]: 6: Hoare triple {37#true} assume !(~N~0 <= 0); {37#true} is VALID [2020-07-10 15:26:41,705 INFO L263 TraceCheckUtils]: 7: Hoare triple {37#true} call assume_abort_if_not((if ~N~0 <= 536870911 then 1 else 0)); {37#true} is VALID [2020-07-10 15:26:41,706 INFO L280 TraceCheckUtils]: 8: Hoare triple {37#true} ~cond := #in~cond; {37#true} is VALID [2020-07-10 15:26:41,707 INFO L280 TraceCheckUtils]: 9: Hoare triple {37#true} assume 0 == ~cond;assume false; {38#false} is VALID [2020-07-10 15:26:41,708 INFO L280 TraceCheckUtils]: 10: Hoare triple {38#false} assume true; {38#false} is VALID [2020-07-10 15:26:41,708 INFO L275 TraceCheckUtils]: 11: Hoare quadruple {38#false} {37#true} #77#return; {38#false} is VALID [2020-07-10 15:26:41,709 INFO L280 TraceCheckUtils]: 12: Hoare triple {38#false} havoc ~i~0;call #t~malloc1.base, #t~malloc1.offset := #Ultimate.allocOnHeap(8 * ~N~0);~a~0.base, ~a~0.offset := #t~malloc1.base, #t~malloc1.offset;call #t~malloc2.base, #t~malloc2.offset := #Ultimate.allocOnHeap(8 * ~N~0);~b~0.base, ~b~0.offset := #t~malloc2.base, #t~malloc2.offset;call write~int(1, ~b~0.base, ~b~0.offset, 8);call write~int(1, ~a~0.base, ~a~0.offset, 8);~i~0 := 1; {38#false} is VALID [2020-07-10 15:26:41,709 INFO L280 TraceCheckUtils]: 13: Hoare triple {38#false} assume !(~i~0 < ~N~0); {38#false} is VALID [2020-07-10 15:26:41,710 INFO L280 TraceCheckUtils]: 14: Hoare triple {38#false} ~i~0 := 1; {38#false} is VALID [2020-07-10 15:26:41,710 INFO L280 TraceCheckUtils]: 15: Hoare triple {38#false} assume !(~i~0 < ~N~0); {38#false} is VALID [2020-07-10 15:26:41,710 INFO L280 TraceCheckUtils]: 16: Hoare triple {38#false} ~i~0 := 0; {38#false} is VALID [2020-07-10 15:26:41,711 INFO L280 TraceCheckUtils]: 17: Hoare triple {38#false} assume !!(~i~0 < ~N~0);call #t~mem9 := read~int(~a~0.base, ~a~0.offset + 8 * ~i~0, 8); {38#false} is VALID [2020-07-10 15:26:41,711 INFO L263 TraceCheckUtils]: 18: Hoare triple {38#false} call __VERIFIER_assert((if #t~mem9 == ~N~0 + (1 + ~i~0) * (1 + ~i~0) then 1 else 0)); {38#false} is VALID [2020-07-10 15:26:41,712 INFO L280 TraceCheckUtils]: 19: Hoare triple {38#false} ~cond := #in~cond; {38#false} is VALID [2020-07-10 15:26:41,712 INFO L280 TraceCheckUtils]: 20: Hoare triple {38#false} assume 0 == ~cond; {38#false} is VALID [2020-07-10 15:26:41,712 INFO L280 TraceCheckUtils]: 21: Hoare triple {38#false} assume !false; {38#false} is VALID [2020-07-10 15:26:41,715 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-10 15:26:41,717 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [272762380] [2020-07-10 15:26:41,718 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-10 15:26:41,718 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-10 15:26:41,721 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1312908977] [2020-07-10 15:26:41,728 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 22 [2020-07-10 15:26:41,734 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-10 15:26:41,739 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states. [2020-07-10 15:26:41,802 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 22 edges. 22 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-10 15:26:41,802 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-10 15:26:41,802 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-10 15:26:41,811 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-10 15:26:41,812 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-10 15:26:41,815 INFO L87 Difference]: Start difference. First operand 34 states. Second operand 3 states. [2020-07-10 15:26:42,030 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-10 15:26:42,030 INFO L93 Difference]: Finished difference Result 58 states and 73 transitions. [2020-07-10 15:26:42,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-10 15:26:42,031 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 22 [2020-07-10 15:26:42,031 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-10 15:26:42,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-10 15:26:42,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 73 transitions. [2020-07-10 15:26:42,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-10 15:26:42,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 73 transitions. [2020-07-10 15:26:42,052 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states and 73 transitions. [2020-07-10 15:26:42,180 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 73 edges. 73 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-10 15:26:42,192 INFO L225 Difference]: With dead ends: 58 [2020-07-10 15:26:42,193 INFO L226 Difference]: Without dead ends: 29 [2020-07-10 15:26:42,197 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-10 15:26:42,217 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2020-07-10 15:26:42,264 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2020-07-10 15:26:42,265 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-10 15:26:42,265 INFO L82 GeneralOperation]: Start isEquivalent. First operand 29 states. Second operand 29 states. [2020-07-10 15:26:42,266 INFO L74 IsIncluded]: Start isIncluded. First operand 29 states. Second operand 29 states. [2020-07-10 15:26:42,266 INFO L87 Difference]: Start difference. First operand 29 states. Second operand 29 states. [2020-07-10 15:26:42,271 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-10 15:26:42,271 INFO L93 Difference]: Finished difference Result 29 states and 31 transitions. [2020-07-10 15:26:42,271 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 31 transitions. [2020-07-10 15:26:42,272 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-10 15:26:42,272 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-10 15:26:42,273 INFO L74 IsIncluded]: Start isIncluded. First operand 29 states. Second operand 29 states. [2020-07-10 15:26:42,273 INFO L87 Difference]: Start difference. First operand 29 states. Second operand 29 states. [2020-07-10 15:26:42,277 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-10 15:26:42,277 INFO L93 Difference]: Finished difference Result 29 states and 31 transitions. [2020-07-10 15:26:42,277 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 31 transitions. [2020-07-10 15:26:42,278 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-10 15:26:42,278 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-10 15:26:42,278 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-10 15:26:42,279 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-10 15:26:42,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2020-07-10 15:26:42,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 31 transitions. [2020-07-10 15:26:42,284 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 31 transitions. Word has length 22 [2020-07-10 15:26:42,284 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-10 15:26:42,284 INFO L479 AbstractCegarLoop]: Abstraction has 29 states and 31 transitions. [2020-07-10 15:26:42,284 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-10 15:26:42,285 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 31 transitions. [2020-07-10 15:26:42,286 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-07-10 15:26:42,286 INFO L414 BasicCegarLoop]: Found error trace [2020-07-10 15:26:42,286 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] [2020-07-10 15:26:42,286 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-10 15:26:42,287 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-10 15:26:42,287 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-10 15:26:42,287 INFO L82 PathProgramCache]: Analyzing trace with hash -1901566133, now seen corresponding path program 1 times [2020-07-10 15:26:42,288 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-10 15:26:42,288 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1548732981] [2020-07-10 15:26:42,288 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-10 15:26:42,314 ERROR L271 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-07-10 15:26:42,314 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1115601401] [2020-07-10 15:26:42,314 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-10 15:26:42,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-10 15:26:42,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-10 15:26:42,441 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-10 15:26:42,441 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-07-10 15:26:42,658 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2020-07-10 15:26:42,703 WARN L170 areAnnotationChecker]: ULTIMATE.initENTRY has no Hoare annotation [2020-07-10 15:26:42,704 WARN L170 areAnnotationChecker]: ULTIMATE.startENTRY has no Hoare annotation [2020-07-10 15:26:42,704 WARN L170 areAnnotationChecker]: ULTIMATE.startENTRY has no Hoare annotation [2020-07-10 15:26:42,704 WARN L170 areAnnotationChecker]: assume_abort_if_notENTRY has no Hoare annotation [2020-07-10 15:26:42,704 WARN L170 areAnnotationChecker]: mainENTRY has no Hoare annotation [2020-07-10 15:26:42,704 WARN L170 areAnnotationChecker]: __VERIFIER_assertENTRY has no Hoare annotation [2020-07-10 15:26:42,705 WARN L170 areAnnotationChecker]: ULTIMATE.initFINAL has no Hoare annotation [2020-07-10 15:26:42,705 WARN L170 areAnnotationChecker]: L-1 has no Hoare annotation [2020-07-10 15:26:42,705 WARN L170 areAnnotationChecker]: L-1 has no Hoare annotation [2020-07-10 15:26:42,705 WARN L170 areAnnotationChecker]: L11 has no Hoare annotation [2020-07-10 15:26:42,705 WARN L170 areAnnotationChecker]: L11 has no Hoare annotation [2020-07-10 15:26:42,705 WARN L170 areAnnotationChecker]: L22 has no Hoare annotation [2020-07-10 15:26:42,706 WARN L170 areAnnotationChecker]: L22 has no Hoare annotation [2020-07-10 15:26:42,706 WARN L170 areAnnotationChecker]: L13 has no Hoare annotation [2020-07-10 15:26:42,706 WARN L170 areAnnotationChecker]: L13 has no Hoare annotation [2020-07-10 15:26:42,706 WARN L170 areAnnotationChecker]: ULTIMATE.initEXIT has no Hoare annotation [2020-07-10 15:26:42,706 WARN L170 areAnnotationChecker]: ULTIMATE.startFINAL has no Hoare annotation [2020-07-10 15:26:42,706 WARN L170 areAnnotationChecker]: L11-2 has no Hoare annotation [2020-07-10 15:26:42,707 WARN L170 areAnnotationChecker]: mainFINAL has no Hoare annotation [2020-07-10 15:26:42,707 WARN L170 areAnnotationChecker]: L23 has no Hoare annotation [2020-07-10 15:26:42,707 WARN L170 areAnnotationChecker]: L23 has no Hoare annotation [2020-07-10 15:26:42,707 WARN L170 areAnnotationChecker]: L13-1 has no Hoare annotation [2020-07-10 15:26:42,707 WARN L170 areAnnotationChecker]: L13-1 has no Hoare annotation [2020-07-10 15:26:42,707 WARN L170 areAnnotationChecker]: L13-3 has no Hoare annotation [2020-07-10 15:26:42,707 WARN L170 areAnnotationChecker]: assume_abort_if_notEXIT has no Hoare annotation [2020-07-10 15:26:42,708 WARN L170 areAnnotationChecker]: mainEXIT has no Hoare annotation [2020-07-10 15:26:42,708 WARN L170 areAnnotationChecker]: L23-1 has no Hoare annotation [2020-07-10 15:26:42,708 WARN L170 areAnnotationChecker]: __VERIFIER_assertEXIT has no Hoare annotation [2020-07-10 15:26:42,708 WARN L170 areAnnotationChecker]: L32-3 has no Hoare annotation [2020-07-10 15:26:42,708 WARN L170 areAnnotationChecker]: L32-3 has no Hoare annotation [2020-07-10 15:26:42,708 WARN L170 areAnnotationChecker]: L32-3 has no Hoare annotation [2020-07-10 15:26:42,708 WARN L170 areAnnotationChecker]: L44-1 has no Hoare annotation [2020-07-10 15:26:42,709 WARN L170 areAnnotationChecker]: L32-4 has no Hoare annotation [2020-07-10 15:26:42,709 WARN L170 areAnnotationChecker]: L32-2 has no Hoare annotation [2020-07-10 15:26:42,709 WARN L170 areAnnotationChecker]: L42-2 has no Hoare annotation [2020-07-10 15:26:42,709 WARN L170 areAnnotationChecker]: L37-3 has no Hoare annotation [2020-07-10 15:26:42,709 WARN L170 areAnnotationChecker]: L37-3 has no Hoare annotation [2020-07-10 15:26:42,709 WARN L170 areAnnotationChecker]: L37-3 has no Hoare annotation [2020-07-10 15:26:42,710 WARN L170 areAnnotationChecker]: L42-3 has no Hoare annotation [2020-07-10 15:26:42,710 WARN L170 areAnnotationChecker]: L42-3 has no Hoare annotation [2020-07-10 15:26:42,710 WARN L170 areAnnotationChecker]: L42-3 has no Hoare annotation [2020-07-10 15:26:42,710 WARN L170 areAnnotationChecker]: L37-4 has no Hoare annotation [2020-07-10 15:26:42,710 WARN L170 areAnnotationChecker]: L37-2 has no Hoare annotation [2020-07-10 15:26:42,710 WARN L170 areAnnotationChecker]: L42-4 has no Hoare annotation [2020-07-10 15:26:42,710 WARN L170 areAnnotationChecker]: L44 has no Hoare annotation [2020-07-10 15:26:42,711 WARN L170 areAnnotationChecker]: L44 has no Hoare annotation [2020-07-10 15:26:42,711 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. [2020-07-10 15:26:42,713 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.07 03:26:42 BoogieIcfgContainer [2020-07-10 15:26:42,714 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-10 15:26:42,719 INFO L168 Benchmark]: Toolchain (without parser) took 2363.93 ms. Allocated memory was 136.3 MB in the beginning and 230.2 MB in the end (delta: 93.8 MB). Free memory was 99.8 MB in the beginning and 180.1 MB in the end (delta: -80.3 MB). Peak memory consumption was 13.5 MB. Max. memory is 7.1 GB. [2020-07-10 15:26:42,721 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 136.3 MB. Free memory was 118.2 MB in the beginning and 118.0 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-07-10 15:26:42,725 INFO L168 Benchmark]: CACSL2BoogieTranslator took 287.99 ms. Allocated memory is still 136.3 MB. Free memory was 99.6 MB in the beginning and 88.3 MB in the end (delta: 11.3 MB). Peak memory consumption was 11.3 MB. Max. memory is 7.1 GB. [2020-07-10 15:26:42,726 INFO L168 Benchmark]: Boogie Preprocessor took 164.02 ms. Allocated memory was 136.3 MB in the beginning and 201.3 MB in the end (delta: 65.0 MB). Free memory was 88.1 MB in the beginning and 178.7 MB in the end (delta: -90.6 MB). Peak memory consumption was 14.1 MB. Max. memory is 7.1 GB. [2020-07-10 15:26:42,727 INFO L168 Benchmark]: RCFGBuilder took 537.06 ms. Allocated memory is still 201.3 MB. Free memory was 178.7 MB in the beginning and 154.1 MB in the end (delta: 24.6 MB). Peak memory consumption was 24.6 MB. Max. memory is 7.1 GB. [2020-07-10 15:26:42,727 INFO L168 Benchmark]: TraceAbstraction took 1366.20 ms. Allocated memory was 201.3 MB in the beginning and 230.2 MB in the end (delta: 28.8 MB). Free memory was 153.5 MB in the beginning and 180.1 MB in the end (delta: -26.7 MB). Peak memory consumption was 2.2 MB. Max. memory is 7.1 GB. [2020-07-10 15:26:42,732 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - AssertionsEnabledResult: Assertions are enabled Assertions are enabled - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 136.3 MB. Free memory was 118.2 MB in the beginning and 118.0 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 287.99 ms. Allocated memory is still 136.3 MB. Free memory was 99.6 MB in the beginning and 88.3 MB in the end (delta: 11.3 MB). Peak memory consumption was 11.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 164.02 ms. Allocated memory was 136.3 MB in the beginning and 201.3 MB in the end (delta: 65.0 MB). Free memory was 88.1 MB in the beginning and 178.7 MB in the end (delta: -90.6 MB). Peak memory consumption was 14.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 537.06 ms. Allocated memory is still 201.3 MB. Free memory was 178.7 MB in the beginning and 154.1 MB in the end (delta: 24.6 MB). Peak memory consumption was 24.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1366.20 ms. Allocated memory was 201.3 MB in the beginning and 230.2 MB in the end (delta: 28.8 MB). Free memory was 153.5 MB in the beginning and 180.1 MB in the end (delta: -26.7 MB). Peak memory consumption was 2.2 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 13]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L17] int N; VAL [\old(N)=2, N=0] [L21] N = __VERIFIER_nondet_int() [L22] COND FALSE !(N <= 0) VAL [\old(N)=0, N=1] [L23] CALL assume_abort_if_not(N <= 2147483647/sizeof(int)) VAL [\old(cond)=1, \old(N)=0, N=1] [L11] COND FALSE !(!cond) VAL [\old(cond)=1, \old(N)=0, cond=1, N=1] [L23] RET assume_abort_if_not(N <= 2147483647/sizeof(int)) VAL [\old(N)=0, N=1] [L25] int i; [L26] long long *a = malloc(sizeof(long long)*N); [L27] long long *b = malloc(sizeof(long long)*N); [L29] b[0] = 1 [L30] a[0] = 1 [L32] i=1 VAL [\old(N)=0, a={-1:0}, b={-2:0}, i=1, malloc(sizeof(long long)*N)={-2:0}, malloc(sizeof(long long)*N)={-1:0}, N=1] [L32] COND FALSE !(i