/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/array-2.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-b8ad66e [2020-10-23 18:42:45,642 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-23 18:42:45,645 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-23 18:42:45,681 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-23 18:42:45,682 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-23 18:42:45,683 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-23 18:42:45,685 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-23 18:42:45,687 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-23 18:42:45,689 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-23 18:42:45,691 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-23 18:42:45,692 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-23 18:42:45,693 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-23 18:42:45,694 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-23 18:42:45,695 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-23 18:42:45,696 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-23 18:42:45,698 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-23 18:42:45,699 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-23 18:42:45,700 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-23 18:42:45,718 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-23 18:42:45,720 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-23 18:42:45,722 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-23 18:42:45,724 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-23 18:42:45,725 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-23 18:42:45,728 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-23 18:42:45,734 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-10-23 18:42:45,751 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-23 18:42:45,752 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-23 18:42:45,752 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-23 18:42:45,754 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 18:42:45,803 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-23 18:42:45,803 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-23 18:42:45,807 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-23 18:42:45,808 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-23 18:42:45,808 INFO L138 SettingsManager]: * Use SBE=true [2020-10-23 18:42:45,808 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-23 18:42:45,808 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-23 18:42:45,808 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-23 18:42:45,809 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-23 18:42:45,809 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-23 18:42:45,810 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-23 18:42:45,810 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-23 18:42:45,810 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-23 18:42:45,810 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-23 18:42:45,811 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-23 18:42:45,811 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-23 18:42:45,811 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-23 18:42:45,811 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-23 18:42:45,812 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-23 18:42:45,812 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-23 18:42:45,812 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-23 18:42:45,812 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-23 18:42:45,812 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-23 18:42:45,813 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-23 18:42:45,813 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-23 18:42:45,813 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-23 18:42:45,813 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-23 18:42:45,813 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-23 18:42:45,814 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-23 18:42:45,814 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-10-23 18:42:46,270 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-23 18:42:46,311 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-23 18:42:46,314 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-23 18:42:46,316 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-23 18:42:46,316 INFO L275 PluginConnector]: CDTParser initialized [2020-10-23 18:42:46,317 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops/array-2.c [2020-10-23 18:42:46,403 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8ff27c305/8be7f2146b674755863ada4baf2be3e1/FLAG91ef8c3b1 [2020-10-23 18:42:47,075 INFO L306 CDTParser]: Found 1 translation units. [2020-10-23 18:42:47,076 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loops/array-2.c [2020-10-23 18:42:47,083 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8ff27c305/8be7f2146b674755863ada4baf2be3e1/FLAG91ef8c3b1 [2020-10-23 18:42:47,431 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8ff27c305/8be7f2146b674755863ada4baf2be3e1 [2020-10-23 18:42:47,434 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-23 18:42:47,441 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-23 18:42:47,443 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-23 18:42:47,443 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-23 18:42:47,447 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-23 18:42:47,448 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 06:42:47" (1/1) ... [2020-10-23 18:42:47,451 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@524a35d4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:42:47, skipping insertion in model container [2020-10-23 18:42:47,452 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 06:42:47" (1/1) ... [2020-10-23 18:42:47,460 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-23 18:42:47,473 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-23 18:42:47,637 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-23 18:42:47,648 INFO L203 MainTranslator]: Completed pre-run [2020-10-23 18:42:47,668 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-23 18:42:47,683 INFO L208 MainTranslator]: Completed translation [2020-10-23 18:42:47,684 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:42:47 WrapperNode [2020-10-23 18:42:47,684 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-23 18:42:47,685 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-23 18:42:47,685 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-23 18:42:47,686 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-23 18:42:47,699 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:42:47" (1/1) ... [2020-10-23 18:42:47,699 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:42:47" (1/1) ... [2020-10-23 18:42:47,707 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:42:47" (1/1) ... [2020-10-23 18:42:47,708 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:42:47" (1/1) ... [2020-10-23 18:42:47,715 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:42:47" (1/1) ... [2020-10-23 18:42:47,719 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:42:47" (1/1) ... [2020-10-23 18:42:47,720 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:42:47" (1/1) ... [2020-10-23 18:42:47,723 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-23 18:42:47,724 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-23 18:42:47,724 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-23 18:42:47,724 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-23 18:42:47,725 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:42:47" (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 18:42:47,803 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-23 18:42:47,803 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-23 18:42:47,803 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-23 18:42:47,804 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-10-23 18:42:47,804 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-23 18:42:47,804 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-23 18:42:47,804 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-23 18:42:47,804 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-23 18:42:47,804 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-23 18:42:47,805 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-10-23 18:42:47,805 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-23 18:42:47,805 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-23 18:42:47,805 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-23 18:42:47,805 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-23 18:42:47,805 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-23 18:42:47,806 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-23 18:42:47,806 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-23 18:42:47,806 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-23 18:42:48,101 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-23 18:42:48,102 INFO L298 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-23 18:42:48,104 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 06:42:48 BoogieIcfgContainer [2020-10-23 18:42:48,104 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-23 18:42:48,106 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-23 18:42:48,107 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-23 18:42:48,111 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-23 18:42:48,111 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.10 06:42:47" (1/3) ... [2020-10-23 18:42:48,112 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19285462 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 06:42:48, skipping insertion in model container [2020-10-23 18:42:48,113 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:42:47" (2/3) ... [2020-10-23 18:42:48,113 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19285462 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 06:42:48, skipping insertion in model container [2020-10-23 18:42:48,113 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 06:42:48" (3/3) ... [2020-10-23 18:42:48,115 INFO L111 eAbstractionObserver]: Analyzing ICFG array-2.c [2020-10-23 18:42:48,131 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-23 18:42:48,137 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-23 18:42:48,154 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-23 18:42:48,184 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-23 18:42:48,184 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-23 18:42:48,184 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-23 18:42:48,185 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-23 18:42:48,185 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-23 18:42:48,185 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-23 18:42:48,185 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-23 18:42:48,185 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-23 18:42:48,242 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states. [2020-10-23 18:42:48,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-23 18:42:48,253 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 18:42:48,254 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 18:42:48,256 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 18:42:48,271 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 18:42:48,272 INFO L82 PathProgramCache]: Analyzing trace with hash 1934270437, now seen corresponding path program 1 times [2020-10-23 18:42:48,284 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-23 18:42:48,285 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2072746103] [2020-10-23 18:42:48,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 18:42:48,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:42:48,699 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 31 [2020-10-23 18:42:48,701 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 18:42:48,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:42:48,740 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 18:42:48,741 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2072746103] [2020-10-23 18:42:48,744 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 18:42:48,744 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-23 18:42:48,745 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [145854849] [2020-10-23 18:42:48,750 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-23 18:42:48,751 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-23 18:42:48,772 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-23 18:42:48,773 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-23 18:42:48,775 INFO L87 Difference]: Start difference. First operand 26 states. Second operand 3 states. [2020-10-23 18:42:48,911 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 18:42:48,912 INFO L93 Difference]: Finished difference Result 40 states and 45 transitions. [2020-10-23 18:42:48,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-23 18:42:48,915 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 13 [2020-10-23 18:42:48,915 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 18:42:48,927 INFO L225 Difference]: With dead ends: 40 [2020-10-23 18:42:48,928 INFO L226 Difference]: Without dead ends: 16 [2020-10-23 18:42:48,933 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-23 18:42:48,952 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2020-10-23 18:42:48,973 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2020-10-23 18:42:48,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2020-10-23 18:42:48,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 17 transitions. [2020-10-23 18:42:48,977 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 17 transitions. Word has length 13 [2020-10-23 18:42:48,977 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 18:42:48,977 INFO L481 AbstractCegarLoop]: Abstraction has 16 states and 17 transitions. [2020-10-23 18:42:48,977 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-23 18:42:48,978 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 17 transitions. [2020-10-23 18:42:48,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-23 18:42:48,978 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 18:42:48,979 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 18:42:48,979 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-23 18:42:48,979 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 18:42:48,980 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 18:42:48,980 INFO L82 PathProgramCache]: Analyzing trace with hash 761664538, now seen corresponding path program 1 times [2020-10-23 18:42:48,980 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-23 18:42:48,981 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1180977702] [2020-10-23 18:42:48,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 18:42:49,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:42:49,164 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 18:42:49,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:42:49,177 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 18:42:49,177 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1180977702] [2020-10-23 18:42:49,178 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 18:42:49,178 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-23 18:42:49,178 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [170856487] [2020-10-23 18:42:49,180 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-23 18:42:49,180 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-23 18:42:49,180 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-23 18:42:49,181 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-23 18:42:49,181 INFO L87 Difference]: Start difference. First operand 16 states and 17 transitions. Second operand 4 states. [2020-10-23 18:42:49,233 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 18:42:49,234 INFO L93 Difference]: Finished difference Result 26 states and 28 transitions. [2020-10-23 18:42:49,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-23 18:42:49,234 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2020-10-23 18:42:49,234 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 18:42:49,235 INFO L225 Difference]: With dead ends: 26 [2020-10-23 18:42:49,235 INFO L226 Difference]: Without dead ends: 19 [2020-10-23 18:42:49,237 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-23 18:42:49,237 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2020-10-23 18:42:49,243 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 17. [2020-10-23 18:42:49,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2020-10-23 18:42:49,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 18 transitions. [2020-10-23 18:42:49,245 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 18 transitions. Word has length 13 [2020-10-23 18:42:49,245 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 18:42:49,245 INFO L481 AbstractCegarLoop]: Abstraction has 17 states and 18 transitions. [2020-10-23 18:42:49,245 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-23 18:42:49,245 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 18 transitions. [2020-10-23 18:42:49,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-10-23 18:42:49,246 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 18:42:49,246 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 18:42:49,246 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-23 18:42:49,247 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 18:42:49,247 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 18:42:49,248 INFO L82 PathProgramCache]: Analyzing trace with hash 726671833, now seen corresponding path program 1 times [2020-10-23 18:42:49,248 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-23 18:42:49,248 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [845302215] [2020-10-23 18:42:49,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 18:42:49,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:42:49,505 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 18:42:49,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:42:49,517 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 18:42:49,518 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [845302215] [2020-10-23 18:42:49,518 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1247510478] [2020-10-23 18:42:49,518 INFO L95 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 [2020-10-23 18:42:49,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:42:49,611 INFO L263 TraceCheckSpWp]: Trace formula consists of 117 conjuncts, 10 conjunts are in the unsatisfiable core [2020-10-23 18:42:49,618 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-23 18:42:49,745 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-10-23 18:42:49,797 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-10-23 18:42:49,999 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-10-23 18:42:50,223 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 13 [2020-10-23 18:42:50,224 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-23 18:42:50,343 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 31 [2020-10-23 18:42:50,345 INFO L625 ElimStorePlain]: treesize reduction 298, result has 18.4 percent of original size [2020-10-23 18:42:50,345 INFO L513 ElimStorePlain]: Eliminatee v_prenex_7 vanished before elimination [2020-10-23 18:42:50,346 INFO L513 ElimStorePlain]: Eliminatee v_prenex_2 vanished before elimination [2020-10-23 18:42:50,346 INFO L513 ElimStorePlain]: Eliminatee v_prenex_12 vanished before elimination [2020-10-23 18:42:50,356 INFO L545 ElimStorePlain]: Start of recursive call 1: 16 dim-0 vars, 4 dim-2 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2020-10-23 18:42:50,356 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 20 variables, input treesize:369, output treesize:54 [2020-10-23 18:42:50,554 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-10-23 18:42:50,555 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 21 treesize of output 21 [2020-10-23 18:42:50,556 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 18:42:50,558 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 18:42:50,560 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 2 xjuncts. [2020-10-23 18:42:50,595 INFO L625 ElimStorePlain]: treesize reduction 11, result has 80.0 percent of original size [2020-10-23 18:42:50,602 INFO L545 ElimStorePlain]: Start of recursive call 1: 5 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-23 18:42:50,603 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 6 variables, input treesize:61, output treesize:3 [2020-10-23 18:42:50,612 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 18:42:50,655 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 18:42:50,656 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-23 18:42:50,656 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 14 [2020-10-23 18:42:50,656 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1238623944] [2020-10-23 18:42:50,657 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-23 18:42:50,657 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-23 18:42:50,658 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-23 18:42:50,658 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2020-10-23 18:42:50,659 INFO L87 Difference]: Start difference. First operand 17 states and 18 transitions. Second operand 14 states. [2020-10-23 18:42:51,010 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 18:42:51,011 INFO L93 Difference]: Finished difference Result 26 states and 27 transitions. [2020-10-23 18:42:51,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-23 18:42:51,012 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 16 [2020-10-23 18:42:51,012 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 18:42:51,012 INFO L225 Difference]: With dead ends: 26 [2020-10-23 18:42:51,013 INFO L226 Difference]: Without dead ends: 19 [2020-10-23 18:42:51,014 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 12 SyntacticMatches, 1 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=69, Invalid=311, Unknown=0, NotChecked=0, Total=380 [2020-10-23 18:42:51,014 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2020-10-23 18:42:51,018 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 18. [2020-10-23 18:42:51,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2020-10-23 18:42:51,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 19 transitions. [2020-10-23 18:42:51,019 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 19 transitions. Word has length 16 [2020-10-23 18:42:51,020 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 18:42:51,020 INFO L481 AbstractCegarLoop]: Abstraction has 18 states and 19 transitions. [2020-10-23 18:42:51,020 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-23 18:42:51,020 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 19 transitions. [2020-10-23 18:42:51,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-10-23 18:42:51,021 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 18:42:51,021 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 18:42:51,233 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2020-10-23 18:42:51,234 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 18:42:51,235 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 18:42:51,235 INFO L82 PathProgramCache]: Analyzing trace with hash 46613463, now seen corresponding path program 1 times [2020-10-23 18:42:51,236 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-23 18:42:51,236 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [222079346] [2020-10-23 18:42:51,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 18:42:51,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-23 18:42:51,264 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-23 18:42:51,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-23 18:42:51,297 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-23 18:42:51,324 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-23 18:42:51,324 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-23 18:42:51,324 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-23 18:42:51,354 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.10 06:42:51 BoogieIcfgContainer [2020-10-23 18:42:51,354 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-23 18:42:51,356 INFO L168 Benchmark]: Toolchain (without parser) took 3919.69 ms. Allocated memory was 151.0 MB in the beginning and 185.6 MB in the end (delta: 34.6 MB). Free memory was 126.1 MB in the beginning and 124.6 MB in the end (delta: 1.5 MB). Peak memory consumption was 36.6 MB. Max. memory is 8.0 GB. [2020-10-23 18:42:51,357 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 151.0 MB. Free memory is still 123.9 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-10-23 18:42:51,358 INFO L168 Benchmark]: CACSL2BoogieTranslator took 241.59 ms. Allocated memory is still 151.0 MB. Free memory was 125.5 MB in the beginning and 116.2 MB in the end (delta: 9.4 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. [2020-10-23 18:42:51,358 INFO L168 Benchmark]: Boogie Preprocessor took 37.46 ms. Allocated memory is still 151.0 MB. Free memory was 116.2 MB in the beginning and 114.4 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2020-10-23 18:42:51,359 INFO L168 Benchmark]: RCFGBuilder took 380.91 ms. Allocated memory is still 151.0 MB. Free memory was 114.3 MB in the beginning and 100.6 MB in the end (delta: 13.7 MB). Peak memory consumption was 13.6 MB. Max. memory is 8.0 GB. [2020-10-23 18:42:51,360 INFO L168 Benchmark]: TraceAbstraction took 3248.17 ms. Allocated memory was 151.0 MB in the beginning and 185.6 MB in the end (delta: 34.6 MB). Free memory was 100.2 MB in the beginning and 124.6 MB in the end (delta: -24.4 MB). Peak memory consumption was 10.3 MB. Max. memory is 8.0 GB. [2020-10-23 18:42:51,364 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 151.0 MB. Free memory is still 123.9 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 241.59 ms. Allocated memory is still 151.0 MB. Free memory was 125.5 MB in the beginning and 116.2 MB in the end (delta: 9.4 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 37.46 ms. Allocated memory is still 151.0 MB. Free memory was 116.2 MB in the beginning and 114.4 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 380.91 ms. Allocated memory is still 151.0 MB. Free memory was 114.3 MB in the beginning and 100.6 MB in the end (delta: 13.7 MB). Peak memory consumption was 13.6 MB. Max. memory is 8.0 GB. * TraceAbstraction took 3248.17 ms. Allocated memory was 151.0 MB in the beginning and 185.6 MB in the end (delta: 34.6 MB). Free memory was 100.2 MB in the beginning and 124.6 MB in the end (delta: -24.4 MB). Peak memory consumption was 10.3 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: [L15] unsigned int SIZE=1; [L16] unsigned int j,k; [L17] int array[SIZE], menor; [L19] menor = __VERIFIER_nondet_int() [L21] j=0 VAL [array={3:0}, j=0, menor=0, SIZE=1] [L21] COND TRUE jmenor) VAL [\old(cond)=0] [L6] COND TRUE !(cond) VAL [\old(cond)=0, cond=0] [L7] CALL reach_error() [L3] __assert_fail("0", "array-2.c", 3, "reach_error") - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 26 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 3.1s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 43 SDtfs, 33 SDslu, 73 SDs, 0 SdLazy, 136 SolverSat, 14 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 40 GetRequests, 18 SyntacticMatches, 1 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=26occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 3 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.6s InterpolantComputationTime, 74 NumberOfCodeBlocks, 74 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 54 ConstructedInterpolants, 4 QuantifiedInterpolants, 6465 SizeOfPredicates, 7 NumberOfNonLiveVariables, 117 ConjunctsInSsa, 10 ConjunctsInUnsatCore, 4 InterpolantComputations, 2 PerfectInterpolantSequences, 0/2 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...