/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.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/loops/for_bounded_loop1.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-b8ad66e [2020-10-23 18:42:50,598 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-23 18:42:50,601 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-23 18:42:50,653 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-23 18:42:50,654 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-23 18:42:50,659 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-23 18:42:50,664 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-23 18:42:50,672 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-23 18:42:50,676 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-23 18:42:50,682 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-23 18:42:50,684 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-23 18:42:50,686 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-23 18:42:50,686 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-23 18:42:50,690 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-23 18:42:50,692 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-23 18:42:50,695 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-23 18:42:50,696 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-23 18:42:50,700 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-23 18:42:50,716 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-23 18:42:50,725 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-23 18:42:50,727 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-23 18:42:50,729 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-23 18:42:50,732 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-23 18:42:50,733 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-23 18:42:50,742 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-10-23 18:42:50,755 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-23 18:42:50,756 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-23 18:42:50,759 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-23 18:42:50,761 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 [2020-10-23 18:42:50,820 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-23 18:42:50,821 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-23 18:42:50,825 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-23 18:42:50,826 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-23 18:42:50,826 INFO L138 SettingsManager]: * Use SBE=true [2020-10-23 18:42:50,826 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-23 18:42:50,827 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-23 18:42:50,827 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-23 18:42:50,827 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-23 18:42:50,827 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-23 18:42:50,828 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-23 18:42:50,829 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-23 18:42:50,829 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-23 18:42:50,829 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-23 18:42:50,829 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-23 18:42:50,829 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-23 18:42:50,830 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-23 18:42:50,830 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-23 18:42:50,830 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-23 18:42:50,830 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-23 18:42:50,830 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-23 18:42:50,831 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-23 18:42:50,831 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-23 18:42:50,831 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-23 18:42:50,831 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-23 18:42:50,831 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-23 18:42:50,832 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-23 18:42:50,832 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-23 18:42:50,833 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-23 18:42:50,833 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-10-23 18:42:51,328 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-23 18:42:51,364 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-23 18:42:51,368 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-23 18:42:51,369 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-23 18:42:51,370 INFO L275 PluginConnector]: CDTParser initialized [2020-10-23 18:42:51,371 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops/for_bounded_loop1.c [2020-10-23 18:42:51,466 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/aa7763629/527b228807c246d7b61e2006ac9f6e36/FLAG52801d15d [2020-10-23 18:42:52,122 INFO L306 CDTParser]: Found 1 translation units. [2020-10-23 18:42:52,123 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loops/for_bounded_loop1.c [2020-10-23 18:42:52,135 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/aa7763629/527b228807c246d7b61e2006ac9f6e36/FLAG52801d15d [2020-10-23 18:42:52,459 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/aa7763629/527b228807c246d7b61e2006ac9f6e36 [2020-10-23 18:42:52,464 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-23 18:42:52,473 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-23 18:42:52,477 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-23 18:42:52,477 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-23 18:42:52,482 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-23 18:42:52,483 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 06:42:52" (1/1) ... [2020-10-23 18:42:52,492 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@12d45e01 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:42:52, skipping insertion in model container [2020-10-23 18:42:52,492 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 06:42:52" (1/1) ... [2020-10-23 18:42:52,502 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-23 18:42:52,519 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-23 18:42:52,729 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-23 18:42:52,740 INFO L203 MainTranslator]: Completed pre-run [2020-10-23 18:42:52,759 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-23 18:42:52,776 INFO L208 MainTranslator]: Completed translation [2020-10-23 18:42:52,776 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:42:52 WrapperNode [2020-10-23 18:42:52,777 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-23 18:42:52,778 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-23 18:42:52,778 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-23 18:42:52,778 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-23 18:42:52,793 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:42:52" (1/1) ... [2020-10-23 18:42:52,794 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:42:52" (1/1) ... [2020-10-23 18:42:52,802 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:42:52" (1/1) ... [2020-10-23 18:42:52,802 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:42:52" (1/1) ... [2020-10-23 18:42:52,808 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:42:52" (1/1) ... [2020-10-23 18:42:52,813 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:42:52" (1/1) ... [2020-10-23 18:42:52,815 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:42:52" (1/1) ... [2020-10-23 18:42:52,817 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-23 18:42:52,825 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-23 18:42:52,825 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-23 18:42:52,826 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-23 18:42:52,826 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:42:52" (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 [2020-10-23 18:42:52,912 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-23 18:42:52,912 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-23 18:42:52,912 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-23 18:42:52,913 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-23 18:42:52,913 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-10-23 18:42:52,913 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-23 18:42:52,913 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-23 18:42:52,913 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-23 18:42:52,914 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-23 18:42:52,914 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-23 18:42:52,914 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-23 18:42:52,914 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-10-23 18:42:52,914 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-23 18:42:52,915 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-23 18:42:52,915 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-23 18:42:52,915 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-23 18:42:52,915 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-23 18:42:52,915 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-23 18:42:52,915 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-23 18:42:52,916 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-23 18:42:53,345 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-23 18:42:53,345 INFO L298 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-23 18:42:53,347 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 06:42:53 BoogieIcfgContainer [2020-10-23 18:42:53,347 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-23 18:42:53,349 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-23 18:42:53,349 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-23 18:42:53,353 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-23 18:42:53,354 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.10 06:42:52" (1/3) ... [2020-10-23 18:42:53,354 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@187efdf7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 06:42:53, skipping insertion in model container [2020-10-23 18:42:53,355 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:42:52" (2/3) ... [2020-10-23 18:42:53,355 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@187efdf7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 06:42:53, skipping insertion in model container [2020-10-23 18:42:53,355 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 06:42:53" (3/3) ... [2020-10-23 18:42:53,357 INFO L111 eAbstractionObserver]: Analyzing ICFG for_bounded_loop1.c [2020-10-23 18:42:53,369 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-23 18:42:53,374 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-23 18:42:53,388 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-23 18:42:53,419 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-23 18:42:53,419 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-23 18:42:53,419 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-23 18:42:53,419 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-23 18:42:53,419 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-23 18:42:53,420 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-23 18:42:53,420 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-23 18:42:53,420 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-23 18:42:53,439 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states. [2020-10-23 18:42:53,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-23 18:42:53,447 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 18:42:53,448 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 18:42:53,448 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 18:42:53,456 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 18:42:53,456 INFO L82 PathProgramCache]: Analyzing trace with hash -2024755940, now seen corresponding path program 1 times [2020-10-23 18:42:53,484 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-23 18:42:53,485 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [138907326] [2020-10-23 18:42:53,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 18:42:53,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:42:53,719 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 18:42:53,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:42:53,741 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 18:42:53,742 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [138907326] [2020-10-23 18:42:53,743 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 18:42:53,743 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-23 18:42:53,744 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [753607135] [2020-10-23 18:42:53,750 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-23 18:42:53,750 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-23 18:42:53,766 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-23 18:42:53,767 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-23 18:42:53,770 INFO L87 Difference]: Start difference. First operand 28 states. Second operand 3 states. [2020-10-23 18:42:53,866 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 18:42:53,866 INFO L93 Difference]: Finished difference Result 46 states and 61 transitions. [2020-10-23 18:42:53,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-23 18:42:53,869 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 13 [2020-10-23 18:42:53,870 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 18:42:53,878 INFO L225 Difference]: With dead ends: 46 [2020-10-23 18:42:53,879 INFO L226 Difference]: Without dead ends: 21 [2020-10-23 18:42:53,883 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-23 18:42:53,902 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2020-10-23 18:42:53,928 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2020-10-23 18:42:53,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2020-10-23 18:42:53,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 23 transitions. [2020-10-23 18:42:53,933 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 23 transitions. Word has length 13 [2020-10-23 18:42:53,933 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 18:42:53,933 INFO L481 AbstractCegarLoop]: Abstraction has 21 states and 23 transitions. [2020-10-23 18:42:53,934 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-23 18:42:53,934 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 23 transitions. [2020-10-23 18:42:53,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-23 18:42:53,936 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 18:42:53,936 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 18:42:53,936 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-23 18:42:53,937 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 18:42:53,937 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 18:42:53,938 INFO L82 PathProgramCache]: Analyzing trace with hash 1898032393, now seen corresponding path program 1 times [2020-10-23 18:42:53,938 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-23 18:42:53,938 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1636538078] [2020-10-23 18:42:53,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 18:42:53,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:42:54,087 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 18:42:54,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:42:54,121 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 18:42:54,121 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1636538078] [2020-10-23 18:42:54,122 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 18:42:54,122 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-23 18:42:54,124 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [171024] [2020-10-23 18:42:54,126 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-23 18:42:54,126 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-23 18:42:54,127 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-23 18:42:54,128 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-23 18:42:54,128 INFO L87 Difference]: Start difference. First operand 21 states and 23 transitions. Second operand 4 states. [2020-10-23 18:42:54,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 18:42:54,339 INFO L93 Difference]: Finished difference Result 35 states and 39 transitions. [2020-10-23 18:42:54,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-23 18:42:54,339 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2020-10-23 18:42:54,340 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 18:42:54,341 INFO L225 Difference]: With dead ends: 35 [2020-10-23 18:42:54,341 INFO L226 Difference]: Without dead ends: 27 [2020-10-23 18:42:54,342 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-23 18:42:54,343 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2020-10-23 18:42:54,353 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 22. [2020-10-23 18:42:54,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2020-10-23 18:42:54,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 24 transitions. [2020-10-23 18:42:54,355 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 24 transitions. Word has length 13 [2020-10-23 18:42:54,355 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 18:42:54,355 INFO L481 AbstractCegarLoop]: Abstraction has 22 states and 24 transitions. [2020-10-23 18:42:54,355 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-23 18:42:54,356 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 24 transitions. [2020-10-23 18:42:54,356 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-23 18:42:54,356 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 18:42:54,357 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 18:42:54,357 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-23 18:42:54,357 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 18:42:54,358 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 18:42:54,358 INFO L82 PathProgramCache]: Analyzing trace with hash 1951596611, now seen corresponding path program 1 times [2020-10-23 18:42:54,358 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-23 18:42:54,359 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1817855700] [2020-10-23 18:42:54,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 18:42:54,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:42:54,533 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 18:42:54,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:42:54,555 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 18:42:54,556 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1817855700] [2020-10-23 18:42:54,556 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 18:42:54,556 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-23 18:42:54,557 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [965962102] [2020-10-23 18:42:54,559 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-23 18:42:54,559 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-23 18:42:54,560 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-23 18:42:54,560 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-10-23 18:42:54,560 INFO L87 Difference]: Start difference. First operand 22 states and 24 transitions. Second operand 7 states. [2020-10-23 18:42:54,893 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 18:42:54,894 INFO L93 Difference]: Finished difference Result 32 states and 34 transitions. [2020-10-23 18:42:54,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-23 18:42:54,894 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 13 [2020-10-23 18:42:54,895 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 18:42:54,896 INFO L225 Difference]: With dead ends: 32 [2020-10-23 18:42:54,896 INFO L226 Difference]: Without dead ends: 29 [2020-10-23 18:42:54,897 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2020-10-23 18:42:54,897 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2020-10-23 18:42:54,905 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 27. [2020-10-23 18:42:54,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2020-10-23 18:42:54,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 29 transitions. [2020-10-23 18:42:54,906 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 29 transitions. Word has length 13 [2020-10-23 18:42:54,907 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 18:42:54,907 INFO L481 AbstractCegarLoop]: Abstraction has 27 states and 29 transitions. [2020-10-23 18:42:54,907 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-23 18:42:54,907 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 29 transitions. [2020-10-23 18:42:54,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-10-23 18:42:54,908 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 18:42:54,908 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 18:42:54,909 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-23 18:42:54,909 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 18:42:54,909 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 18:42:54,910 INFO L82 PathProgramCache]: Analyzing trace with hash -549680435, now seen corresponding path program 1 times [2020-10-23 18:42:54,910 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-23 18:42:54,910 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1821699767] [2020-10-23 18:42:54,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 18:42:54,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:42:55,056 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 18:42:55,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:42:55,066 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-23 18:42:55,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:42:55,073 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 18:42:55,074 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1821699767] [2020-10-23 18:42:55,074 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 18:42:55,074 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-23 18:42:55,075 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1044258096] [2020-10-23 18:42:55,075 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-23 18:42:55,075 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-23 18:42:55,076 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-23 18:42:55,076 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-10-23 18:42:55,077 INFO L87 Difference]: Start difference. First operand 27 states and 29 transitions. Second operand 8 states. [2020-10-23 18:42:55,422 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 18:42:55,422 INFO L93 Difference]: Finished difference Result 40 states and 43 transitions. [2020-10-23 18:42:55,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-23 18:42:55,423 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 20 [2020-10-23 18:42:55,423 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 18:42:55,424 INFO L225 Difference]: With dead ends: 40 [2020-10-23 18:42:55,424 INFO L226 Difference]: Without dead ends: 37 [2020-10-23 18:42:55,425 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=43, Invalid=139, Unknown=0, NotChecked=0, Total=182 [2020-10-23 18:42:55,426 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2020-10-23 18:42:55,433 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 34. [2020-10-23 18:42:55,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2020-10-23 18:42:55,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 36 transitions. [2020-10-23 18:42:55,435 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 36 transitions. Word has length 20 [2020-10-23 18:42:55,436 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 18:42:55,436 INFO L481 AbstractCegarLoop]: Abstraction has 34 states and 36 transitions. [2020-10-23 18:42:55,436 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-23 18:42:55,436 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 36 transitions. [2020-10-23 18:42:55,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-10-23 18:42:55,437 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 18:42:55,437 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 18:42:55,438 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-23 18:42:55,438 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 18:42:55,438 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 18:42:55,439 INFO L82 PathProgramCache]: Analyzing trace with hash -1572252782, now seen corresponding path program 1 times [2020-10-23 18:42:55,439 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-23 18:42:55,439 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1215927203] [2020-10-23 18:42:55,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 18:42:55,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-23 18:42:55,462 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-23 18:42:55,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-23 18:42:55,491 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-23 18:42:55,540 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-23 18:42:55,540 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-23 18:42:55,541 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-23 18:42:55,612 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.10 06:42:55 BoogieIcfgContainer [2020-10-23 18:42:55,612 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-23 18:42:55,615 INFO L168 Benchmark]: Toolchain (without parser) took 3146.65 ms. Allocated memory was 151.0 MB in the beginning and 181.4 MB in the end (delta: 30.4 MB). Free memory was 126.6 MB in the beginning and 76.7 MB in the end (delta: 49.8 MB). Peak memory consumption was 81.2 MB. Max. memory is 8.0 GB. [2020-10-23 18:42:55,616 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 151.0 MB. Free memory is still 123.1 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-10-23 18:42:55,617 INFO L168 Benchmark]: CACSL2BoogieTranslator took 299.95 ms. Allocated memory is still 151.0 MB. Free memory was 125.9 MB in the beginning and 116.7 MB in the end (delta: 9.2 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. [2020-10-23 18:42:55,618 INFO L168 Benchmark]: Boogie Preprocessor took 39.39 ms. Allocated memory is still 151.0 MB. Free memory was 116.5 MB in the beginning and 115.2 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2020-10-23 18:42:55,618 INFO L168 Benchmark]: RCFGBuilder took 522.47 ms. Allocated memory is still 151.0 MB. Free memory was 115.0 MB in the beginning and 101.6 MB in the end (delta: 13.4 MB). Peak memory consumption was 13.6 MB. Max. memory is 8.0 GB. [2020-10-23 18:42:55,620 INFO L168 Benchmark]: TraceAbstraction took 2262.96 ms. Allocated memory was 151.0 MB in the beginning and 181.4 MB in the end (delta: 30.4 MB). Free memory was 101.1 MB in the beginning and 76.7 MB in the end (delta: 24.4 MB). Peak memory consumption was 55.0 MB. Max. memory is 8.0 GB. [2020-10-23 18:42:55,623 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 151.0 MB. Free memory is still 123.1 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 299.95 ms. Allocated memory is still 151.0 MB. Free memory was 125.9 MB in the beginning and 116.7 MB in the end (delta: 9.2 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 39.39 ms. Allocated memory is still 151.0 MB. Free memory was 116.5 MB in the beginning and 115.2 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 522.47 ms. Allocated memory is still 151.0 MB. Free memory was 115.0 MB in the beginning and 101.6 MB in the end (delta: 13.4 MB). Peak memory consumption was 13.6 MB. Max. memory is 8.0 GB. * TraceAbstraction took 2262.96 ms. Allocated memory was 151.0 MB in the beginning and 181.4 MB in the end (delta: 30.4 MB). Free memory was 101.1 MB in the beginning and 76.7 MB in the end (delta: 24.4 MB). Peak memory consumption was 55.0 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 3]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L19] int i=0, x=0, y=0; [L20] int n=__VERIFIER_nondet_int(); [L21] COND FALSE !(!(n>0)) [L22] i=0 VAL [i=0, n=1, x=0, y=0] [L22] COND TRUE i