/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/array-fpi/condgf.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-7d8eed3 [2020-11-06 22:43:58,472 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-06 22:43:58,474 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-06 22:43:58,509 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-06 22:43:58,510 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-06 22:43:58,511 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-06 22:43:58,513 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-06 22:43:58,515 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-06 22:43:58,517 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-06 22:43:58,518 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-06 22:43:58,520 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-06 22:43:58,521 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-06 22:43:58,521 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-06 22:43:58,523 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-06 22:43:58,524 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-06 22:43:58,525 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-06 22:43:58,527 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-06 22:43:58,541 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-06 22:43:58,544 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-06 22:43:58,549 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-06 22:43:58,553 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-06 22:43:58,557 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-06 22:43:58,559 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-06 22:43:58,561 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-06 22:43:58,566 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-11-06 22:43:58,585 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-06 22:43:58,586 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-06 22:43:58,587 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-06 22:43:58,588 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 [2020-11-06 22:43:58,643 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-06 22:43:58,644 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-06 22:43:58,648 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-06 22:43:58,649 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-06 22:43:58,649 INFO L138 SettingsManager]: * Use SBE=true [2020-11-06 22:43:58,649 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-06 22:43:58,649 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-06 22:43:58,650 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-06 22:43:58,650 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-06 22:43:58,650 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-06 22:43:58,651 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-06 22:43:58,651 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-06 22:43:58,652 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-06 22:43:58,652 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-06 22:43:58,652 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-06 22:43:58,652 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-06 22:43:58,652 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-06 22:43:58,653 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-06 22:43:58,653 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-06 22:43:58,653 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-06 22:43:58,653 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-06 22:43:58,654 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-06 22:43:58,654 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-06 22:43:58,654 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-06 22:43:58,654 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-06 22:43:58,654 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-06 22:43:58,655 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-06 22:43:58,655 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-06 22:43:58,655 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-06 22:43:58,655 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-11-06 22:43:59,032 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-06 22:43:59,069 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-06 22:43:59,075 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-06 22:43:59,077 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-06 22:43:59,082 INFO L275 PluginConnector]: CDTParser initialized [2020-11-06 22:43:59,084 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-fpi/condgf.c [2020-11-06 22:43:59,159 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5d6e663a0/6004a2c99ca147cea72cb2a261415eb9/FLAGd94d1f7dc [2020-11-06 22:43:59,948 INFO L306 CDTParser]: Found 1 translation units. [2020-11-06 22:43:59,949 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/array-fpi/condgf.c [2020-11-06 22:43:59,959 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5d6e663a0/6004a2c99ca147cea72cb2a261415eb9/FLAGd94d1f7dc [2020-11-06 22:44:00,274 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5d6e663a0/6004a2c99ca147cea72cb2a261415eb9 [2020-11-06 22:44:00,279 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-06 22:44:00,286 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-11-06 22:44:00,287 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-06 22:44:00,288 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-06 22:44:00,292 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-06 22:44:00,293 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:44:00" (1/1) ... [2020-11-06 22:44:00,296 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@224ee5e0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:44:00, skipping insertion in model container [2020-11-06 22:44:00,297 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:44:00" (1/1) ... [2020-11-06 22:44:00,305 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-06 22:44:00,323 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-06 22:44:00,508 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-06 22:44:00,518 INFO L203 MainTranslator]: Completed pre-run [2020-11-06 22:44:00,549 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-06 22:44:00,569 INFO L208 MainTranslator]: Completed translation [2020-11-06 22:44:00,569 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:44:00 WrapperNode [2020-11-06 22:44:00,570 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-06 22:44:00,571 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-06 22:44:00,571 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-06 22:44:00,572 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-06 22:44:00,589 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:44:00" (1/1) ... [2020-11-06 22:44:00,589 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:44:00" (1/1) ... [2020-11-06 22:44:00,599 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:44:00" (1/1) ... [2020-11-06 22:44:00,600 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:44:00" (1/1) ... [2020-11-06 22:44:00,610 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:44:00" (1/1) ... [2020-11-06 22:44:00,616 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:44:00" (1/1) ... [2020-11-06 22:44:00,618 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:44:00" (1/1) ... [2020-11-06 22:44:00,621 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-06 22:44:00,622 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-06 22:44:00,623 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-06 22:44:00,623 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-06 22:44:00,624 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:44:00" (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 [2020-11-06 22:44:00,720 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-11-06 22:44:00,721 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-06 22:44:00,721 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-11-06 22:44:00,722 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-11-06 22:44:00,722 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-11-06 22:44:00,722 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-11-06 22:44:00,722 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-11-06 22:44:00,723 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-11-06 22:44:00,723 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-11-06 22:44:00,723 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-06 22:44:00,724 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-11-06 22:44:00,724 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-11-06 22:44:00,724 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-11-06 22:44:00,726 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-11-06 22:44:00,726 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-11-06 22:44:00,727 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-11-06 22:44:00,727 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-06 22:44:00,728 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-06 22:44:00,728 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-06 22:44:00,728 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-11-06 22:44:00,729 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-06 22:44:00,729 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-06 22:44:01,308 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-06 22:44:01,308 INFO L298 CfgBuilder]: Removed 4 assume(true) statements. [2020-11-06 22:44:01,310 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:44:01 BoogieIcfgContainer [2020-11-06 22:44:01,311 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-06 22:44:01,313 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-06 22:44:01,313 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-06 22:44:01,317 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-06 22:44:01,318 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 10:44:00" (1/3) ... [2020-11-06 22:44:01,319 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a590212 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:44:01, skipping insertion in model container [2020-11-06 22:44:01,319 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:44:00" (2/3) ... [2020-11-06 22:44:01,320 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a590212 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:44:01, skipping insertion in model container [2020-11-06 22:44:01,320 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:44:01" (3/3) ... [2020-11-06 22:44:01,322 INFO L111 eAbstractionObserver]: Analyzing ICFG condgf.c [2020-11-06 22:44:01,340 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-06 22:44:01,345 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-06 22:44:01,360 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-06 22:44:01,393 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-06 22:44:01,394 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-06 22:44:01,394 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-06 22:44:01,394 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-06 22:44:01,394 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-06 22:44:01,394 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-06 22:44:01,395 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-06 22:44:01,395 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-06 22:44:01,415 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states. [2020-11-06 22:44:01,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-11-06 22:44:01,423 INFO L414 BasicCegarLoop]: Found error trace [2020-11-06 22:44:01,424 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-06 22:44:01,425 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-06 22:44:01,432 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-06 22:44:01,432 INFO L82 PathProgramCache]: Analyzing trace with hash 1662535376, now seen corresponding path program 1 times [2020-11-06 22:44:01,444 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-06 22:44:01,445 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1803529134] [2020-11-06 22:44:01,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-06 22:44:01,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:44:01,787 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-06 22:44:01,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:44:01,805 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-11-06 22:44:01,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:44:01,816 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-06 22:44:01,817 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1803529134] [2020-11-06 22:44:01,818 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-06 22:44:01,818 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-06 22:44:01,819 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1430441139] [2020-11-06 22:44:01,824 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-06 22:44:01,825 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-06 22:44:01,840 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-06 22:44:01,841 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-06 22:44:01,843 INFO L87 Difference]: Start difference. First operand 42 states. Second operand 3 states. [2020-11-06 22:44:02,037 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-06 22:44:02,038 INFO L93 Difference]: Finished difference Result 71 states and 93 transitions. [2020-11-06 22:44:02,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-06 22:44:02,040 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 25 [2020-11-06 22:44:02,041 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-06 22:44:02,049 INFO L225 Difference]: With dead ends: 71 [2020-11-06 22:44:02,049 INFO L226 Difference]: Without dead ends: 34 [2020-11-06 22:44:02,053 INFO L677 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 [2020-11-06 22:44:02,074 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2020-11-06 22:44:02,097 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2020-11-06 22:44:02,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2020-11-06 22:44:02,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 38 transitions. [2020-11-06 22:44:02,102 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 38 transitions. Word has length 25 [2020-11-06 22:44:02,103 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-06 22:44:02,103 INFO L481 AbstractCegarLoop]: Abstraction has 34 states and 38 transitions. [2020-11-06 22:44:02,103 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-06 22:44:02,103 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 38 transitions. [2020-11-06 22:44:02,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-11-06 22:44:02,104 INFO L414 BasicCegarLoop]: Found error trace [2020-11-06 22:44:02,105 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-06 22:44:02,105 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-06 22:44:02,105 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-06 22:44:02,106 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-06 22:44:02,106 INFO L82 PathProgramCache]: Analyzing trace with hash 641467022, now seen corresponding path program 1 times [2020-11-06 22:44:02,106 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-06 22:44:02,107 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [567357128] [2020-11-06 22:44:02,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-06 22:44:02,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:44:02,279 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-06 22:44:02,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:44:02,292 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-11-06 22:44:02,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:44:02,301 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-06 22:44:02,302 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [567357128] [2020-11-06 22:44:02,302 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-06 22:44:02,303 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-06 22:44:02,303 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2109910704] [2020-11-06 22:44:02,304 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-06 22:44:02,305 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-06 22:44:02,306 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-06 22:44:02,306 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-11-06 22:44:02,306 INFO L87 Difference]: Start difference. First operand 34 states and 38 transitions. Second operand 5 states. [2020-11-06 22:44:02,673 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-06 22:44:02,673 INFO L93 Difference]: Finished difference Result 64 states and 76 transitions. [2020-11-06 22:44:02,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-06 22:44:02,675 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 25 [2020-11-06 22:44:02,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-06 22:44:02,680 INFO L225 Difference]: With dead ends: 64 [2020-11-06 22:44:02,680 INFO L226 Difference]: Without dead ends: 45 [2020-11-06 22:44:02,682 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-11-06 22:44:02,684 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2020-11-06 22:44:02,698 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 37. [2020-11-06 22:44:02,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2020-11-06 22:44:02,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 41 transitions. [2020-11-06 22:44:02,700 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 41 transitions. Word has length 25 [2020-11-06 22:44:02,701 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-06 22:44:02,701 INFO L481 AbstractCegarLoop]: Abstraction has 37 states and 41 transitions. [2020-11-06 22:44:02,701 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-06 22:44:02,701 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 41 transitions. [2020-11-06 22:44:02,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2020-11-06 22:44:02,703 INFO L414 BasicCegarLoop]: Found error trace [2020-11-06 22:44:02,703 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-06 22:44:02,703 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-06 22:44:02,703 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-06 22:44:02,704 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-06 22:44:02,704 INFO L82 PathProgramCache]: Analyzing trace with hash -1803017237, now seen corresponding path program 1 times [2020-11-06 22:44:02,704 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-06 22:44:02,705 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [243108887] [2020-11-06 22:44:02,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-06 22:44:02,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:44:03,157 WARN L194 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 22 DAG size of output: 18 [2020-11-06 22:44:03,452 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-06 22:44:03,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:44:03,465 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-11-06 22:44:03,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:44:03,473 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-06 22:44:03,474 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [243108887] [2020-11-06 22:44:03,474 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [113781855] [2020-11-06 22:44:03,474 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 [2020-11-06 22:44:03,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:44:03,615 INFO L263 TraceCheckSpWp]: Trace formula consists of 162 conjuncts, 14 conjunts are in the unsatisfiable core [2020-11-06 22:44:03,623 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-06 22:44:03,723 INFO L382 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 11 treesize of output 7 [2020-11-06 22:44:03,724 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-11-06 22:44:03,740 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-06 22:44:03,740 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-11-06 22:44:03,741 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:20, output treesize:16 [2020-11-06 22:44:03,800 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-11-06 22:44:03,803 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2020-11-06 22:44:03,804 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-11-06 22:44:03,822 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-06 22:44:03,823 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-11-06 22:44:03,823 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:31, output treesize:27 [2020-11-06 22:44:04,076 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-11-06 22:44:04,079 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 23 [2020-11-06 22:44:04,080 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-11-06 22:44:04,101 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-06 22:44:04,105 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-11-06 22:44:04,106 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:44, output treesize:31 [2020-11-06 22:44:04,234 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-11-06 22:44:04,236 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 10 [2020-11-06 22:44:04,237 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-11-06 22:44:04,249 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-06 22:44:04,252 INFO L547 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-11-06 22:44:04,253 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 5 variables, input treesize:34, output treesize:7 [2020-11-06 22:44:04,311 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-06 22:44:04,312 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-06 22:44:04,312 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 9] total 17 [2020-11-06 22:44:04,313 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1274990430] [2020-11-06 22:44:04,313 INFO L461 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-11-06 22:44:04,313 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-06 22:44:04,314 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-11-06 22:44:04,315 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=232, Unknown=0, NotChecked=0, Total=272 [2020-11-06 22:44:04,315 INFO L87 Difference]: Start difference. First operand 37 states and 41 transitions. Second operand 17 states. [2020-11-06 22:44:06,302 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-06 22:44:06,302 INFO L93 Difference]: Finished difference Result 65 states and 75 transitions. [2020-11-06 22:44:06,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-11-06 22:44:06,303 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 32 [2020-11-06 22:44:06,304 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-06 22:44:06,306 INFO L225 Difference]: With dead ends: 65 [2020-11-06 22:44:06,306 INFO L226 Difference]: Without dead ends: 50 [2020-11-06 22:44:06,307 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=91, Invalid=415, Unknown=0, NotChecked=0, Total=506 [2020-11-06 22:44:06,308 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2020-11-06 22:44:06,317 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 46. [2020-11-06 22:44:06,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46 states. [2020-11-06 22:44:06,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 52 transitions. [2020-11-06 22:44:06,318 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 52 transitions. Word has length 32 [2020-11-06 22:44:06,319 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-06 22:44:06,319 INFO L481 AbstractCegarLoop]: Abstraction has 46 states and 52 transitions. [2020-11-06 22:44:06,319 INFO L482 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-11-06 22:44:06,319 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 52 transitions. [2020-11-06 22:44:06,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2020-11-06 22:44:06,321 INFO L414 BasicCegarLoop]: Found error trace [2020-11-06 22:44:06,321 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-06 22:44:06,535 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2020-11-06 22:44:06,536 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-06 22:44:06,537 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-06 22:44:06,538 INFO L82 PathProgramCache]: Analyzing trace with hash 2098923049, now seen corresponding path program 1 times [2020-11-06 22:44:06,538 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-06 22:44:06,539 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1574591990] [2020-11-06 22:44:06,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-06 22:44:06,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-06 22:44:06,575 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-06 22:44:06,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-06 22:44:06,606 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-06 22:44:06,639 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-06 22:44:06,639 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-06 22:44:06,640 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-06 22:44:06,688 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.11 10:44:06 BoogieIcfgContainer [2020-11-06 22:44:06,689 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-06 22:44:06,690 INFO L168 Benchmark]: Toolchain (without parser) took 6409.11 ms. Allocated memory was 157.3 MB in the beginning and 204.5 MB in the end (delta: 47.2 MB). Free memory was 131.8 MB in the beginning and 107.1 MB in the end (delta: 24.7 MB). Peak memory consumption was 72.9 MB. Max. memory is 8.0 GB. [2020-11-06 22:44:06,693 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 157.3 MB. Free memory is still 129.3 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-11-06 22:44:06,694 INFO L168 Benchmark]: CACSL2BoogieTranslator took 282.85 ms. Allocated memory is still 157.3 MB. Free memory was 131.2 MB in the beginning and 120.7 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. [2020-11-06 22:44:06,695 INFO L168 Benchmark]: Boogie Preprocessor took 50.37 ms. Allocated memory is still 157.3 MB. Free memory was 120.7 MB in the beginning and 118.9 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2020-11-06 22:44:06,696 INFO L168 Benchmark]: RCFGBuilder took 688.58 ms. Allocated memory is still 157.3 MB. Free memory was 118.9 MB in the beginning and 132.7 MB in the end (delta: -13.8 MB). Peak memory consumption was 13.2 MB. Max. memory is 8.0 GB. [2020-11-06 22:44:06,700 INFO L168 Benchmark]: TraceAbstraction took 5376.02 ms. Allocated memory was 157.3 MB in the beginning and 204.5 MB in the end (delta: 47.2 MB). Free memory was 132.2 MB in the beginning and 107.1 MB in the end (delta: 25.1 MB). Peak memory consumption was 72.3 MB. Max. memory is 8.0 GB. [2020-11-06 22:44:06,707 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 157.3 MB. Free memory is still 129.3 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 282.85 ms. Allocated memory is still 157.3 MB. Free memory was 131.2 MB in the beginning and 120.7 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 50.37 ms. Allocated memory is still 157.3 MB. Free memory was 120.7 MB in the beginning and 118.9 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 688.58 ms. Allocated memory is still 157.3 MB. Free memory was 118.9 MB in the beginning and 132.7 MB in the end (delta: -13.8 MB). Peak memory consumption was 13.2 MB. Max. memory is 8.0 GB. * TraceAbstraction took 5376.02 ms. Allocated memory was 157.3 MB in the beginning and 204.5 MB in the end (delta: 47.2 MB). Free memory was 132.2 MB in the beginning and 107.1 MB in the end (delta: 25.1 MB). Peak memory consumption was 72.3 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 10]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L19] int N; VAL [\old(N)=51, N=0] [L23] N = __VERIFIER_nondet_int() [L24] COND FALSE !(N <= 0) VAL [\old(N)=0, N=1] [L25] CALL assume_abort_if_not(N <= 2147483647/sizeof(int)) VAL [\old(cond)=1, \old(N)=0, N=1] [L13] COND FALSE !(!cond) VAL [\old(cond)=1, \old(N)=0, cond=1, N=1] [L25] RET assume_abort_if_not(N <= 2147483647/sizeof(int)) VAL [\old(N)=0, N=1] [L27] int i; [L28] long long sum[1]; [L29] int *a = malloc(sizeof(int)*N); [L31] sum[0] = 0 [L32] i=0 VAL [\old(N)=0, a={-1:0}, i=0, malloc(sizeof(int)*N)={-1:0}, N=1, sum={11:0}] [L32] COND TRUE i