/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 --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.use.separate.solver.for.trace.checks true -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf -i ../../../trunk/examples/svcomp/array-fpi/ss3f.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-b8ad66e [2020-10-24 02:24:11,367 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-24 02:24:11,370 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-24 02:24:11,416 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-24 02:24:11,417 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-24 02:24:11,418 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-24 02:24:11,420 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-24 02:24:11,423 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-24 02:24:11,425 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-24 02:24:11,426 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-24 02:24:11,428 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-24 02:24:11,429 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-24 02:24:11,430 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-24 02:24:11,431 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-24 02:24:11,433 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-24 02:24:11,434 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-24 02:24:11,435 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-24 02:24:11,436 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-24 02:24:11,450 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-24 02:24:11,455 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-24 02:24:11,457 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-24 02:24:11,463 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-24 02:24:11,464 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-24 02:24:11,466 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-24 02:24:11,471 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-24 02:24:11,472 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-24 02:24:11,477 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-24 02:24:11,479 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-24 02:24:11,482 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-24 02:24:11,484 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-24 02:24:11,485 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-24 02:24:11,486 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-24 02:24:11,487 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-24 02:24:11,488 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-24 02:24:11,490 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-24 02:24:11,491 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-24 02:24:11,492 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-24 02:24:11,493 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-24 02:24:11,493 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-24 02:24:11,494 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-24 02:24:11,495 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-24 02:24:11,497 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-10-24 02:24:11,516 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-24 02:24:11,516 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-24 02:24:11,521 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-24 02:24:11,522 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-24 02:24:11,522 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-24 02:24:11,522 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-24 02:24:11,522 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-24 02:24:11,523 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-24 02:24:11,523 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-24 02:24:11,523 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-24 02:24:11,524 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-24 02:24:11,525 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-24 02:24:11,525 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-24 02:24:11,525 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-24 02:24:11,525 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-24 02:24:11,525 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-10-24 02:24:11,526 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-24 02:24:11,526 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-24 02:24:11,526 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-24 02:24:11,526 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-24 02:24:11,527 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-10-24 02:24:11,527 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-24 02:24:11,527 INFO L138 SettingsManager]: * Use separate solver for trace checks=false 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use separate solver for trace checks -> true [2020-10-24 02:24:11,915 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-24 02:24:11,966 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-24 02:24:11,969 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-24 02:24:11,971 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-24 02:24:11,971 INFO L275 PluginConnector]: CDTParser initialized [2020-10-24 02:24:11,972 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-fpi/ss3f.c [2020-10-24 02:24:12,058 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/812254be8/081de3eae57a4daa8dfff9b3b8267b38/FLAG1486b0d3d [2020-10-24 02:24:12,735 INFO L306 CDTParser]: Found 1 translation units. [2020-10-24 02:24:12,736 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/array-fpi/ss3f.c [2020-10-24 02:24:12,745 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/812254be8/081de3eae57a4daa8dfff9b3b8267b38/FLAG1486b0d3d [2020-10-24 02:24:13,064 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/812254be8/081de3eae57a4daa8dfff9b3b8267b38 [2020-10-24 02:24:13,072 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-24 02:24:13,080 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-24 02:24:13,082 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-24 02:24:13,082 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-24 02:24:13,086 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-24 02:24:13,087 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 02:24:13" (1/1) ... [2020-10-24 02:24:13,091 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5fb2df7e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:24:13, skipping insertion in model container [2020-10-24 02:24:13,091 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 02:24:13" (1/1) ... [2020-10-24 02:24:13,100 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-24 02:24:13,117 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-24 02:24:13,306 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-24 02:24:13,316 INFO L203 MainTranslator]: Completed pre-run [2020-10-24 02:24:13,345 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-24 02:24:13,365 INFO L208 MainTranslator]: Completed translation [2020-10-24 02:24:13,365 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:24:13 WrapperNode [2020-10-24 02:24:13,365 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-24 02:24:13,367 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-24 02:24:13,367 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-24 02:24:13,367 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-24 02:24:13,383 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:24:13" (1/1) ... [2020-10-24 02:24:13,384 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:24:13" (1/1) ... [2020-10-24 02:24:13,394 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:24:13" (1/1) ... [2020-10-24 02:24:13,394 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:24:13" (1/1) ... [2020-10-24 02:24:13,406 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:24:13" (1/1) ... [2020-10-24 02:24:13,413 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:24:13" (1/1) ... [2020-10-24 02:24:13,415 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:24:13" (1/1) ... [2020-10-24 02:24:13,418 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-24 02:24:13,420 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-24 02:24:13,420 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-24 02:24:13,420 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-24 02:24:13,421 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:24:13" (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 [2020-10-24 02:24:13,509 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-24 02:24:13,509 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-24 02:24:13,510 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-24 02:24:13,510 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-24 02:24:13,510 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-10-24 02:24:13,510 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-24 02:24:13,510 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-24 02:24:13,510 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-24 02:24:13,511 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-24 02:24:13,511 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-24 02:24:13,511 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-24 02:24:13,511 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-10-24 02:24:13,511 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-24 02:24:13,511 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-24 02:24:13,512 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-24 02:24:13,512 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-24 02:24:13,512 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-24 02:24:13,512 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-24 02:24:13,512 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-24 02:24:13,513 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-24 02:24:13,513 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-24 02:24:13,513 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-24 02:24:14,211 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-24 02:24:14,212 INFO L298 CfgBuilder]: Removed 5 assume(true) statements. [2020-10-24 02:24:14,214 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 02:24:14 BoogieIcfgContainer [2020-10-24 02:24:14,215 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-24 02:24:14,219 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-24 02:24:14,219 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-24 02:24:14,224 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-24 02:24:14,224 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 02:24:13" (1/3) ... [2020-10-24 02:24:14,225 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a2b337a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 02:24:14, skipping insertion in model container [2020-10-24 02:24:14,226 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:24:13" (2/3) ... [2020-10-24 02:24:14,226 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a2b337a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 02:24:14, skipping insertion in model container [2020-10-24 02:24:14,227 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 02:24:14" (3/3) ... [2020-10-24 02:24:14,228 INFO L111 eAbstractionObserver]: Analyzing ICFG ss3f.c [2020-10-24 02:24:14,243 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-24 02:24:14,249 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-24 02:24:14,263 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-24 02:24:14,299 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-24 02:24:14,299 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-24 02:24:14,299 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-24 02:24:14,300 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-24 02:24:14,300 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-24 02:24:14,300 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-24 02:24:14,300 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-24 02:24:14,300 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-24 02:24:14,324 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states. [2020-10-24 02:24:14,336 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2020-10-24 02:24:14,337 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 02:24:14,338 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-24 02:24:14,338 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 02:24:14,350 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 02:24:14,351 INFO L82 PathProgramCache]: Analyzing trace with hash 1833093152, now seen corresponding path program 1 times [2020-10-24 02:24:14,361 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-24 02:24:14,362 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1653877389] [2020-10-24 02:24:14,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-24 02:24:14,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 02:24:14,725 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-24 02:24:14,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 02:24:14,748 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-10-24 02:24:14,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 02:24:14,772 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-24 02:24:14,773 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1653877389] [2020-10-24 02:24:14,776 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-24 02:24:14,776 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-24 02:24:14,777 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [132468112] [2020-10-24 02:24:14,783 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-24 02:24:14,783 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-24 02:24:14,798 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-24 02:24:14,799 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-24 02:24:14,802 INFO L87 Difference]: Start difference. First operand 98 states. Second operand 3 states. [2020-10-24 02:24:15,157 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 02:24:15,157 INFO L93 Difference]: Finished difference Result 164 states and 188 transitions. [2020-10-24 02:24:15,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-24 02:24:15,160 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 50 [2020-10-24 02:24:15,161 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 02:24:15,170 INFO L225 Difference]: With dead ends: 164 [2020-10-24 02:24:15,170 INFO L226 Difference]: Without dead ends: 83 [2020-10-24 02:24:15,175 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-24 02:24:15,195 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2020-10-24 02:24:15,228 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 83. [2020-10-24 02:24:15,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 83 states. [2020-10-24 02:24:15,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 87 transitions. [2020-10-24 02:24:15,234 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 87 transitions. Word has length 50 [2020-10-24 02:24:15,236 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 02:24:15,237 INFO L481 AbstractCegarLoop]: Abstraction has 83 states and 87 transitions. [2020-10-24 02:24:15,237 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-24 02:24:15,237 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 87 transitions. [2020-10-24 02:24:15,239 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2020-10-24 02:24:15,239 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 02:24:15,240 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-24 02:24:15,240 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-24 02:24:15,240 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 02:24:15,241 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 02:24:15,241 INFO L82 PathProgramCache]: Analyzing trace with hash 907551430, now seen corresponding path program 1 times [2020-10-24 02:24:15,242 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-24 02:24:15,242 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1467535792] [2020-10-24 02:24:15,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-24 02:24:15,270 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-10-24 02:24:15,271 WARN L167 FreeRefinementEngine]: Strategy FIXED_PREFERENCES was unsuccessful and could not determine trace feasibility [2020-10-24 02:24:15,271 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-24 02:24:15,276 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-24 02:24:15,295 WARN L238 ceAbstractionStarter]: Unable to decide correctness. Please check the following counterexample manually. [2020-10-24 02:24:15,296 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 02:24:15 BoogieIcfgContainer [2020-10-24 02:24:15,296 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-24 02:24:15,299 INFO L168 Benchmark]: Toolchain (without parser) took 2223.37 ms. Allocated memory is still 151.0 MB. Free memory was 128.0 MB in the beginning and 72.9 MB in the end (delta: 55.1 MB). Peak memory consumption was 55.1 MB. Max. memory is 8.0 GB. [2020-10-24 02:24:15,300 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 151.0 MB. Free memory is still 125.6 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-10-24 02:24:15,301 INFO L168 Benchmark]: CACSL2BoogieTranslator took 284.16 ms. Allocated memory is still 151.0 MB. Free memory was 127.4 MB in the beginning and 116.7 MB in the end (delta: 10.7 MB). Peak memory consumption was 11.5 MB. Max. memory is 8.0 GB. [2020-10-24 02:24:15,303 INFO L168 Benchmark]: Boogie Preprocessor took 51.86 ms. Allocated memory is still 151.0 MB. Free memory was 116.7 MB in the beginning and 115.0 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2020-10-24 02:24:15,304 INFO L168 Benchmark]: RCFGBuilder took 795.41 ms. Allocated memory is still 151.0 MB. Free memory was 115.0 MB in the beginning and 127.9 MB in the end (delta: -12.9 MB). Peak memory consumption was 19.4 MB. Max. memory is 8.0 GB. [2020-10-24 02:24:15,305 INFO L168 Benchmark]: TraceAbstraction took 1076.79 ms. Allocated memory is still 151.0 MB. Free memory was 127.4 MB in the beginning and 72.9 MB in the end (delta: 54.5 MB). Peak memory consumption was 54.5 MB. Max. memory is 8.0 GB. [2020-10-24 02:24:15,310 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 151.0 MB. Free memory is still 125.6 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 284.16 ms. Allocated memory is still 151.0 MB. Free memory was 127.4 MB in the beginning and 116.7 MB in the end (delta: 10.7 MB). Peak memory consumption was 11.5 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 51.86 ms. Allocated memory is still 151.0 MB. Free memory was 116.7 MB in the beginning and 115.0 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 795.41 ms. Allocated memory is still 151.0 MB. Free memory was 115.0 MB in the beginning and 127.9 MB in the end (delta: -12.9 MB). Peak memory consumption was 19.4 MB. Max. memory is 8.0 GB. * TraceAbstraction took 1076.79 ms. Allocated memory is still 151.0 MB. Free memory was 127.4 MB in the beginning and 72.9 MB in the end (delta: 54.5 MB). Peak memory consumption was 54.5 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 10]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: unable to decide satisfiability of path constraint. Possible FailurePath: [L19] int N; [L23] N = __VERIFIER_nondet_int() [L24] COND FALSE !(N <= 0) [L25] CALL assume_abort_if_not(N <= 2147483647/sizeof(int)) [L13] COND FALSE !(!cond) [L25] RET assume_abort_if_not(N <= 2147483647/sizeof(int)) [L27] int i; [L28] long long sum[1]; [L29] long long *a = malloc(sizeof(long long)*N); [L31] sum[0] = 0 [L32] i=0 [L32] COND FALSE !(i