/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/sqmf.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-267fbe0 [2020-07-17 22:50:00,469 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-17 22:50:00,472 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-17 22:50:00,489 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-17 22:50:00,489 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-17 22:50:00,491 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-17 22:50:00,492 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-17 22:50:00,503 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-17 22:50:00,505 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-17 22:50:00,505 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-17 22:50:00,506 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-17 22:50:00,507 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-17 22:50:00,508 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-17 22:50:00,512 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-17 22:50:00,513 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-17 22:50:00,518 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-17 22:50:00,519 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-17 22:50:00,520 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-17 22:50:00,524 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-17 22:50:00,526 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-17 22:50:00,528 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-17 22:50:00,531 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-17 22:50:00,534 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-17 22:50:00,534 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-17 22:50:00,536 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-17 22:50:00,547 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-17 22:50:00,548 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-17 22:50:00,549 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-17 22:50:00,550 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 [2020-07-17 22:50:00,564 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-17 22:50:00,564 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-17 22:50:00,565 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-17 22:50:00,565 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-17 22:50:00,566 INFO L138 SettingsManager]: * Use SBE=true [2020-07-17 22:50:00,566 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-17 22:50:00,566 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-17 22:50:00,566 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-17 22:50:00,566 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-17 22:50:00,567 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-17 22:50:00,567 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-17 22:50:00,567 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-17 22:50:00,567 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-17 22:50:00,567 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-17 22:50:00,568 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-17 22:50:00,568 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-17 22:50:00,568 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-17 22:50:00,568 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-17 22:50:00,568 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-17 22:50:00,569 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-17 22:50:00,569 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-17 22:50:00,569 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-17 22:50:00,569 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-17 22:50:00,570 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-17 22:50:00,570 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-17 22:50:00,570 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-17 22:50:00,570 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-17 22:50:00,570 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-17 22:50:00,570 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-17 22:50:00,571 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-07-17 22:50:00,859 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-17 22:50:00,878 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-17 22:50:00,883 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-17 22:50:00,884 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-17 22:50:00,884 INFO L275 PluginConnector]: CDTParser initialized [2020-07-17 22:50:00,885 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-fpi/sqmf.c [2020-07-17 22:50:00,947 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b1ac6b7c7/e63a610585a142929780d66f11b4b4d9/FLAGc232a849a [2020-07-17 22:50:01,347 INFO L306 CDTParser]: Found 1 translation units. [2020-07-17 22:50:01,348 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/array-fpi/sqmf.c [2020-07-17 22:50:01,357 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b1ac6b7c7/e63a610585a142929780d66f11b4b4d9/FLAGc232a849a [2020-07-17 22:50:01,754 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b1ac6b7c7/e63a610585a142929780d66f11b4b4d9 [2020-07-17 22:50:01,763 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-17 22:50:01,766 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-17 22:50:01,767 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-17 22:50:01,767 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-17 22:50:01,771 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-17 22:50:01,772 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.07 10:50:01" (1/1) ... [2020-07-17 22:50:01,775 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@714d67de and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 10:50:01, skipping insertion in model container [2020-07-17 22:50:01,776 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.07 10:50:01" (1/1) ... [2020-07-17 22:50:01,785 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-17 22:50:01,805 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-17 22:50:02,011 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-17 22:50:02,025 INFO L203 MainTranslator]: Completed pre-run [2020-07-17 22:50:02,075 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-17 22:50:02,099 INFO L208 MainTranslator]: Completed translation [2020-07-17 22:50:02,100 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 10:50:02 WrapperNode [2020-07-17 22:50:02,100 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-17 22:50:02,101 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-17 22:50:02,101 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-17 22:50:02,101 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-17 22:50:02,237 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 10:50:02" (1/1) ... [2020-07-17 22:50:02,239 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 10:50:02" (1/1) ... [2020-07-17 22:50:02,249 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 10:50:02" (1/1) ... [2020-07-17 22:50:02,250 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 10:50:02" (1/1) ... [2020-07-17 22:50:02,271 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 10:50:02" (1/1) ... [2020-07-17 22:50:02,277 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 10:50:02" (1/1) ... [2020-07-17 22:50:02,278 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 10:50:02" (1/1) ... [2020-07-17 22:50:02,281 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-17 22:50:02,281 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-17 22:50:02,281 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-17 22:50:02,281 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-17 22:50:02,283 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 10:50:02" (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 [2020-07-17 22:50:02,362 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-17 22:50:02,362 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-17 22:50:02,362 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-07-17 22:50:02,362 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-07-17 22:50:02,363 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-17 22:50:02,363 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-17 22:50:02,363 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-07-17 22:50:02,363 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-07-17 22:50:02,363 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-07-17 22:50:02,364 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-17 22:50:02,364 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-07-17 22:50:02,365 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-17 22:50:02,365 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-07-17 22:50:02,366 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-17 22:50:02,366 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-17 22:50:02,367 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-17 22:50:02,367 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-17 22:50:02,367 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-17 22:50:02,792 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-17 22:50:02,793 INFO L295 CfgBuilder]: Removed 3 assume(true) statements. [2020-07-17 22:50:02,796 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.07 10:50:02 BoogieIcfgContainer [2020-07-17 22:50:02,797 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-17 22:50:02,798 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-17 22:50:02,798 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-17 22:50:02,802 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-17 22:50:02,802 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.07 10:50:01" (1/3) ... [2020-07-17 22:50:02,803 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28053f52 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.07 10:50:02, skipping insertion in model container [2020-07-17 22:50:02,803 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 10:50:02" (2/3) ... [2020-07-17 22:50:02,804 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28053f52 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.07 10:50:02, skipping insertion in model container [2020-07-17 22:50:02,804 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.07 10:50:02" (3/3) ... [2020-07-17 22:50:02,805 INFO L109 eAbstractionObserver]: Analyzing ICFG sqmf.c [2020-07-17 22:50:02,815 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-07-17 22:50:02,822 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-17 22:50:02,835 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-17 22:50:02,858 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-17 22:50:02,858 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-17 22:50:02,858 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-07-17 22:50:02,858 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-17 22:50:02,859 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-17 22:50:02,859 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-17 22:50:02,859 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-17 22:50:02,859 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-17 22:50:02,878 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states. [2020-07-17 22:50:02,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-07-17 22:50:02,884 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 22:50:02,884 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] [2020-07-17 22:50:02,885 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 22:50:02,890 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 22:50:02,890 INFO L82 PathProgramCache]: Analyzing trace with hash -1314760119, now seen corresponding path program 1 times [2020-07-17 22:50:02,899 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-17 22:50:02,900 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1251314457] [2020-07-17 22:50:02,900 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 22:50:03,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 22:50:03,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 22:50:03,111 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 [2020-07-17 22:50:03,112 INFO L280 TraceCheckUtils]: 1: Hoare triple {37#true} assume true; {37#true} is VALID [2020-07-17 22:50:03,112 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {37#true} {37#true} #81#return; {37#true} is VALID [2020-07-17 22:50:03,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 22:50:03,130 INFO L280 TraceCheckUtils]: 0: Hoare triple {37#true} ~cond := #in~cond; {37#true} is VALID [2020-07-17 22:50:03,131 INFO L280 TraceCheckUtils]: 1: Hoare triple {37#true} assume 0 == ~cond;assume false; {38#false} is VALID [2020-07-17 22:50:03,132 INFO L280 TraceCheckUtils]: 2: Hoare triple {38#false} assume true; {38#false} is VALID [2020-07-17 22:50:03,132 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {38#false} {37#true} #77#return; {38#false} is VALID [2020-07-17 22:50:03,135 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 [2020-07-17 22:50:03,135 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 [2020-07-17 22:50:03,136 INFO L280 TraceCheckUtils]: 2: Hoare triple {37#true} assume true; {37#true} is VALID [2020-07-17 22:50:03,136 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {37#true} {37#true} #81#return; {37#true} is VALID [2020-07-17 22:50:03,137 INFO L263 TraceCheckUtils]: 4: Hoare triple {37#true} call #t~ret10 := main(); {37#true} is VALID [2020-07-17 22:50:03,137 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 [2020-07-17 22:50:03,137 INFO L280 TraceCheckUtils]: 6: Hoare triple {37#true} assume !(~N~0 <= 0); {37#true} is VALID [2020-07-17 22:50:03,138 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 [2020-07-17 22:50:03,138 INFO L280 TraceCheckUtils]: 8: Hoare triple {37#true} ~cond := #in~cond; {37#true} is VALID [2020-07-17 22:50:03,140 INFO L280 TraceCheckUtils]: 9: Hoare triple {37#true} assume 0 == ~cond;assume false; {38#false} is VALID [2020-07-17 22:50:03,140 INFO L280 TraceCheckUtils]: 10: Hoare triple {38#false} assume true; {38#false} is VALID [2020-07-17 22:50:03,141 INFO L275 TraceCheckUtils]: 11: Hoare quadruple {38#false} {37#true} #77#return; {38#false} is VALID [2020-07-17 22:50:03,141 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(0, ~b~0.base, ~b~0.offset, 8);call write~int(0, ~a~0.base, ~a~0.offset, 8);~i~0 := 1; {38#false} is VALID [2020-07-17 22:50:03,141 INFO L280 TraceCheckUtils]: 13: Hoare triple {38#false} assume !(~i~0 < ~N~0); {38#false} is VALID [2020-07-17 22:50:03,142 INFO L280 TraceCheckUtils]: 14: Hoare triple {38#false} ~i~0 := 1; {38#false} is VALID [2020-07-17 22:50:03,142 INFO L280 TraceCheckUtils]: 15: Hoare triple {38#false} assume !(~i~0 < ~N~0); {38#false} is VALID [2020-07-17 22:50:03,143 INFO L280 TraceCheckUtils]: 16: Hoare triple {38#false} ~i~0 := 0; {38#false} is VALID [2020-07-17 22:50:03,143 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 [2020-07-17 22:50:03,145 INFO L263 TraceCheckUtils]: 18: Hoare triple {38#false} call __VERIFIER_assert((if #t~mem9 == (1 + ~i~0) * (1 + ~i~0) then 1 else 0)); {38#false} is VALID [2020-07-17 22:50:03,145 INFO L280 TraceCheckUtils]: 19: Hoare triple {38#false} ~cond := #in~cond; {38#false} is VALID [2020-07-17 22:50:03,145 INFO L280 TraceCheckUtils]: 20: Hoare triple {38#false} assume 0 == ~cond; {38#false} is VALID [2020-07-17 22:50:03,146 INFO L280 TraceCheckUtils]: 21: Hoare triple {38#false} assume !false; {38#false} is VALID [2020-07-17 22:50:03,150 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-17 22:50:03,151 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1251314457] [2020-07-17 22:50:03,152 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-17 22:50:03,153 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-17 22:50:03,154 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [670215666] [2020-07-17 22:50:03,160 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 22 [2020-07-17 22:50:03,163 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-17 22:50:03,167 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states. [2020-07-17 22:50:03,216 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 22 edges. 22 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-17 22:50:03,217 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-17 22:50:03,217 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-17 22:50:03,226 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-17 22:50:03,227 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-17 22:50:03,230 INFO L87 Difference]: Start difference. First operand 34 states. Second operand 3 states. [2020-07-17 22:50:03,522 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 22:50:03,522 INFO L93 Difference]: Finished difference Result 58 states and 73 transitions. [2020-07-17 22:50:03,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-17 22:50:03,523 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 22 [2020-07-17 22:50:03,523 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 22:50:03,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-17 22:50:03,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 73 transitions. [2020-07-17 22:50:03,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-17 22:50:03,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 73 transitions. [2020-07-17 22:50:03,559 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states and 73 transitions. [2020-07-17 22:50:03,687 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 73 edges. 73 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-17 22:50:03,699 INFO L225 Difference]: With dead ends: 58 [2020-07-17 22:50:03,699 INFO L226 Difference]: Without dead ends: 29 [2020-07-17 22:50:03,703 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 [2020-07-17 22:50:03,721 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2020-07-17 22:50:03,755 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2020-07-17 22:50:03,756 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-17 22:50:03,756 INFO L82 GeneralOperation]: Start isEquivalent. First operand 29 states. Second operand 29 states. [2020-07-17 22:50:03,757 INFO L74 IsIncluded]: Start isIncluded. First operand 29 states. Second operand 29 states. [2020-07-17 22:50:03,757 INFO L87 Difference]: Start difference. First operand 29 states. Second operand 29 states. [2020-07-17 22:50:03,761 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 22:50:03,762 INFO L93 Difference]: Finished difference Result 29 states and 31 transitions. [2020-07-17 22:50:03,762 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 31 transitions. [2020-07-17 22:50:03,762 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-17 22:50:03,763 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-17 22:50:03,763 INFO L74 IsIncluded]: Start isIncluded. First operand 29 states. Second operand 29 states. [2020-07-17 22:50:03,763 INFO L87 Difference]: Start difference. First operand 29 states. Second operand 29 states. [2020-07-17 22:50:03,767 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 22:50:03,768 INFO L93 Difference]: Finished difference Result 29 states and 31 transitions. [2020-07-17 22:50:03,768 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 31 transitions. [2020-07-17 22:50:03,769 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-17 22:50:03,769 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-17 22:50:03,769 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-17 22:50:03,769 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-17 22:50:03,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2020-07-17 22:50:03,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 31 transitions. [2020-07-17 22:50:03,774 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 31 transitions. Word has length 22 [2020-07-17 22:50:03,775 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 22:50:03,775 INFO L479 AbstractCegarLoop]: Abstraction has 29 states and 31 transitions. [2020-07-17 22:50:03,775 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-17 22:50:03,775 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 31 transitions. [2020-07-17 22:50:03,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-07-17 22:50:03,776 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 22:50:03,776 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] [2020-07-17 22:50:03,777 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-17 22:50:03,777 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 22:50:03,777 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 22:50:03,777 INFO L82 PathProgramCache]: Analyzing trace with hash -1901566133, now seen corresponding path program 1 times [2020-07-17 22:50:03,778 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-17 22:50:03,778 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2092525130] [2020-07-17 22:50:03,778 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 22:50:03,805 ERROR L271 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-07-17 22:50:03,805 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1707213634] [2020-07-17 22:50:03,805 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 [2020-07-17 22:50:03,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-17 22:50:03,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-17 22:50:03,955 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-17 22:50:03,956 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-07-17 22:50:04,171 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2020-07-17 22:50:04,214 WARN L170 areAnnotationChecker]: ULTIMATE.initENTRY has no Hoare annotation [2020-07-17 22:50:04,214 WARN L170 areAnnotationChecker]: ULTIMATE.startENTRY has no Hoare annotation [2020-07-17 22:50:04,214 WARN L170 areAnnotationChecker]: ULTIMATE.startENTRY has no Hoare annotation [2020-07-17 22:50:04,215 WARN L170 areAnnotationChecker]: assume_abort_if_notENTRY has no Hoare annotation [2020-07-17 22:50:04,215 WARN L170 areAnnotationChecker]: mainENTRY has no Hoare annotation [2020-07-17 22:50:04,215 WARN L170 areAnnotationChecker]: __VERIFIER_assertENTRY has no Hoare annotation [2020-07-17 22:50:04,215 WARN L170 areAnnotationChecker]: ULTIMATE.initFINAL has no Hoare annotation [2020-07-17 22:50:04,215 WARN L170 areAnnotationChecker]: L-1 has no Hoare annotation [2020-07-17 22:50:04,215 WARN L170 areAnnotationChecker]: L-1 has no Hoare annotation [2020-07-17 22:50:04,215 WARN L170 areAnnotationChecker]: L11 has no Hoare annotation [2020-07-17 22:50:04,216 WARN L170 areAnnotationChecker]: L11 has no Hoare annotation [2020-07-17 22:50:04,216 WARN L170 areAnnotationChecker]: L22 has no Hoare annotation [2020-07-17 22:50:04,216 WARN L170 areAnnotationChecker]: L22 has no Hoare annotation [2020-07-17 22:50:04,216 WARN L170 areAnnotationChecker]: L13 has no Hoare annotation [2020-07-17 22:50:04,216 WARN L170 areAnnotationChecker]: L13 has no Hoare annotation [2020-07-17 22:50:04,216 WARN L170 areAnnotationChecker]: ULTIMATE.initEXIT has no Hoare annotation [2020-07-17 22:50:04,216 WARN L170 areAnnotationChecker]: ULTIMATE.startFINAL has no Hoare annotation [2020-07-17 22:50:04,216 WARN L170 areAnnotationChecker]: L11-2 has no Hoare annotation [2020-07-17 22:50:04,217 WARN L170 areAnnotationChecker]: mainFINAL has no Hoare annotation [2020-07-17 22:50:04,217 WARN L170 areAnnotationChecker]: L23 has no Hoare annotation [2020-07-17 22:50:04,217 WARN L170 areAnnotationChecker]: L23 has no Hoare annotation [2020-07-17 22:50:04,217 WARN L170 areAnnotationChecker]: L13-1 has no Hoare annotation [2020-07-17 22:50:04,217 WARN L170 areAnnotationChecker]: L13-1 has no Hoare annotation [2020-07-17 22:50:04,217 WARN L170 areAnnotationChecker]: L13-3 has no Hoare annotation [2020-07-17 22:50:04,217 WARN L170 areAnnotationChecker]: assume_abort_if_notEXIT has no Hoare annotation [2020-07-17 22:50:04,218 WARN L170 areAnnotationChecker]: mainEXIT has no Hoare annotation [2020-07-17 22:50:04,218 WARN L170 areAnnotationChecker]: L23-1 has no Hoare annotation [2020-07-17 22:50:04,218 WARN L170 areAnnotationChecker]: __VERIFIER_assertEXIT has no Hoare annotation [2020-07-17 22:50:04,218 WARN L170 areAnnotationChecker]: L32-3 has no Hoare annotation [2020-07-17 22:50:04,218 WARN L170 areAnnotationChecker]: L32-3 has no Hoare annotation [2020-07-17 22:50:04,218 WARN L170 areAnnotationChecker]: L32-3 has no Hoare annotation [2020-07-17 22:50:04,218 WARN L170 areAnnotationChecker]: L44-1 has no Hoare annotation [2020-07-17 22:50:04,219 WARN L170 areAnnotationChecker]: L32-4 has no Hoare annotation [2020-07-17 22:50:04,219 WARN L170 areAnnotationChecker]: L32-2 has no Hoare annotation [2020-07-17 22:50:04,219 WARN L170 areAnnotationChecker]: L42-2 has no Hoare annotation [2020-07-17 22:50:04,219 WARN L170 areAnnotationChecker]: L37-3 has no Hoare annotation [2020-07-17 22:50:04,219 WARN L170 areAnnotationChecker]: L37-3 has no Hoare annotation [2020-07-17 22:50:04,219 WARN L170 areAnnotationChecker]: L37-3 has no Hoare annotation [2020-07-17 22:50:04,219 WARN L170 areAnnotationChecker]: L42-3 has no Hoare annotation [2020-07-17 22:50:04,219 WARN L170 areAnnotationChecker]: L42-3 has no Hoare annotation [2020-07-17 22:50:04,220 WARN L170 areAnnotationChecker]: L42-3 has no Hoare annotation [2020-07-17 22:50:04,220 WARN L170 areAnnotationChecker]: L37-4 has no Hoare annotation [2020-07-17 22:50:04,220 WARN L170 areAnnotationChecker]: L37-2 has no Hoare annotation [2020-07-17 22:50:04,220 WARN L170 areAnnotationChecker]: L42-4 has no Hoare annotation [2020-07-17 22:50:04,220 WARN L170 areAnnotationChecker]: L44 has no Hoare annotation [2020-07-17 22:50:04,220 WARN L170 areAnnotationChecker]: L44 has no Hoare annotation [2020-07-17 22:50:04,221 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. [2020-07-17 22:50:04,224 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.07 10:50:04 BoogieIcfgContainer [2020-07-17 22:50:04,224 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-17 22:50:04,227 INFO L168 Benchmark]: Toolchain (without parser) took 2461.73 ms. Allocated memory was 146.3 MB in the beginning and 232.8 MB in the end (delta: 86.5 MB). Free memory was 104.0 MB in the beginning and 173.6 MB in the end (delta: -69.6 MB). Peak memory consumption was 16.9 MB. Max. memory is 7.1 GB. [2020-07-17 22:50:04,228 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 146.3 MB. Free memory was 122.5 MB in the beginning and 122.3 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. [2020-07-17 22:50:04,229 INFO L168 Benchmark]: CACSL2BoogieTranslator took 333.27 ms. Allocated memory is still 146.3 MB. Free memory was 103.6 MB in the beginning and 92.7 MB in the end (delta: 10.9 MB). Peak memory consumption was 10.9 MB. Max. memory is 7.1 GB. [2020-07-17 22:50:04,230 INFO L168 Benchmark]: Boogie Preprocessor took 180.07 ms. Allocated memory was 146.3 MB in the beginning and 205.5 MB in the end (delta: 59.2 MB). Free memory was 92.7 MB in the beginning and 182.9 MB in the end (delta: -90.2 MB). Peak memory consumption was 9.9 MB. Max. memory is 7.1 GB. [2020-07-17 22:50:04,231 INFO L168 Benchmark]: RCFGBuilder took 515.61 ms. Allocated memory is still 205.5 MB. Free memory was 182.9 MB in the beginning and 158.1 MB in the end (delta: 24.8 MB). Peak memory consumption was 24.8 MB. Max. memory is 7.1 GB. [2020-07-17 22:50:04,232 INFO L168 Benchmark]: TraceAbstraction took 1425.62 ms. Allocated memory was 205.5 MB in the beginning and 232.8 MB in the end (delta: 27.3 MB). Free memory was 157.5 MB in the beginning and 173.6 MB in the end (delta: -16.1 MB). Peak memory consumption was 11.1 MB. Max. memory is 7.1 GB. [2020-07-17 22:50:04,236 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 0.19 ms. Allocated memory is still 146.3 MB. Free memory was 122.5 MB in the beginning and 122.3 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 333.27 ms. Allocated memory is still 146.3 MB. Free memory was 103.6 MB in the beginning and 92.7 MB in the end (delta: 10.9 MB). Peak memory consumption was 10.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 180.07 ms. Allocated memory was 146.3 MB in the beginning and 205.5 MB in the end (delta: 59.2 MB). Free memory was 92.7 MB in the beginning and 182.9 MB in the end (delta: -90.2 MB). Peak memory consumption was 9.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 515.61 ms. Allocated memory is still 205.5 MB. Free memory was 182.9 MB in the beginning and 158.1 MB in the end (delta: 24.8 MB). Peak memory consumption was 24.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1425.62 ms. Allocated memory was 205.5 MB in the beginning and 232.8 MB in the end (delta: 27.3 MB). Free memory was 157.5 MB in the beginning and 173.6 MB in the end (delta: -16.1 MB). Peak memory consumption was 11.1 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] = 0 [L30] a[0] = 0 [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